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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [config/] [rs6000/] [rs6000.c] - Rev 859
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/* Subroutines used for code generation on IBM RS/6000. Copyright (C) 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. */ #include "config.h" #include "system.h" #include "coretypes.h" #include "tm.h" #include "rtl.h" #include "regs.h" #include "hard-reg-set.h" #include "real.h" #include "insn-config.h" #include "conditions.h" #include "insn-attr.h" #include "flags.h" #include "recog.h" #include "obstack.h" #include "tree.h" #include "expr.h" #include "optabs.h" #include "except.h" #include "function.h" #include "output.h" #include "basic-block.h" #include "integrate.h" #include "toplev.h" #include "ggc.h" #include "hashtab.h" #include "tm_p.h" #include "target.h" #include "target-def.h" #include "langhooks.h" #include "reload.h" #include "cfglayout.h" #include "sched-int.h" #include "gimple.h" #include "tree-flow.h" #include "intl.h" #include "params.h" #include "tm-constrs.h" #if TARGET_XCOFF #include "xcoffout.h" /* get declarations of xcoff_*_section_name */ #endif #if TARGET_MACHO #include "gstab.h" /* for N_SLINE */ #endif #ifndef TARGET_NO_PROTOTYPE #define TARGET_NO_PROTOTYPE 0 #endif #define min(A,B) ((A) < (B) ? (A) : (B)) #define max(A,B) ((A) > (B) ? (A) : (B)) /* Structure used to define the rs6000 stack */ typedef struct rs6000_stack { int first_gp_reg_save; /* first callee saved GP register used */ int first_fp_reg_save; /* first callee saved FP register used */ int first_altivec_reg_save; /* first callee saved AltiVec register used */ int lr_save_p; /* true if the link reg needs to be saved */ int cr_save_p; /* true if the CR reg needs to be saved */ unsigned int vrsave_mask; /* mask of vec registers to save */ int push_p; /* true if we need to allocate stack space */ int calls_p; /* true if the function makes any calls */ int world_save_p; /* true if we're saving *everything*: r13-r31, cr, f14-f31, vrsave, v20-v31 */ enum rs6000_abi abi; /* which ABI to use */ int gp_save_offset; /* offset to save GP regs from initial SP */ int fp_save_offset; /* offset to save FP regs from initial SP */ int altivec_save_offset; /* offset to save AltiVec regs from initial SP */ int lr_save_offset; /* offset to save LR from initial SP */ int cr_save_offset; /* offset to save CR from initial SP */ int vrsave_save_offset; /* offset to save VRSAVE from initial SP */ int spe_gp_save_offset; /* offset to save spe 64-bit gprs */ int varargs_save_offset; /* offset to save the varargs registers */ int ehrd_offset; /* offset to EH return data */ int reg_size; /* register size (4 or 8) */ HOST_WIDE_INT vars_size; /* variable save area size */ int parm_size; /* outgoing parameter size */ int save_size; /* save area size */ int fixed_size; /* fixed size of stack frame */ int gp_size; /* size of saved GP registers */ int fp_size; /* size of saved FP registers */ int altivec_size; /* size of saved AltiVec registers */ int cr_size; /* size to hold CR if not in save_size */ int vrsave_size; /* size to hold VRSAVE if not in save_size */ int altivec_padding_size; /* size of altivec alignment padding if not in save_size */ int spe_gp_size; /* size of 64-bit GPR save size for SPE */ int spe_padding_size; HOST_WIDE_INT total_size; /* total bytes allocated for stack */ int spe_64bit_regs_used; } rs6000_stack_t; /* A C structure for machine-specific, per-function data. This is added to the cfun structure. */ typedef struct GTY(()) machine_function { /* Some local-dynamic symbol. */ const char *some_ld_name; /* Whether the instruction chain has been scanned already. */ int insn_chain_scanned_p; /* Flags if __builtin_return_address (n) with n >= 1 was used. */ int ra_needs_full_frame; /* Flags if __builtin_return_address (0) was used. */ int ra_need_lr; /* Cache lr_save_p after expansion of builtin_eh_return. */ int lr_save_state; /* Offset from virtual_stack_vars_rtx to the start of the ABI_V4 varargs save area. */ HOST_WIDE_INT varargs_save_offset; /* Temporary stack slot to use for SDmode copies. This slot is 64-bits wide and is allocated early enough so that the offset does not overflow the 16-bit load/store offset field. */ rtx sdmode_stack_slot; } machine_function; /* Target cpu type */ enum processor_type rs6000_cpu; struct rs6000_cpu_select rs6000_select[3] = { /* switch name, tune arch */ { (const char *)0, "--with-cpu=", 1, 1 }, { (const char *)0, "-mcpu=", 1, 1 }, { (const char *)0, "-mtune=", 1, 0 }, }; /* Always emit branch hint bits. */ static GTY(()) bool rs6000_always_hint; /* Schedule instructions for group formation. */ static GTY(()) bool rs6000_sched_groups; /* Align branch targets. */ static GTY(()) bool rs6000_align_branch_targets; /* Support for -msched-costly-dep option. */ const char *rs6000_sched_costly_dep_str; enum rs6000_dependence_cost rs6000_sched_costly_dep; /* Support for -minsert-sched-nops option. */ const char *rs6000_sched_insert_nops_str; enum rs6000_nop_insertion rs6000_sched_insert_nops; /* Support targetm.vectorize.builtin_mask_for_load. */ static GTY(()) tree altivec_builtin_mask_for_load; /* Size of long double. */ int rs6000_long_double_type_size; /* IEEE quad extended precision long double. */ int rs6000_ieeequad; /* Nonzero to use AltiVec ABI. */ int rs6000_altivec_abi; /* Nonzero if we want SPE SIMD instructions. */ int rs6000_spe; /* Nonzero if we want SPE ABI extensions. */ int rs6000_spe_abi; /* Nonzero if floating point operations are done in the GPRs. */ int rs6000_float_gprs = 0; /* Nonzero if we want Darwin's struct-by-value-in-regs ABI. */ int rs6000_darwin64_abi; /* Set to nonzero once AIX common-mode calls have been defined. */ static GTY(()) int common_mode_defined; /* Label number of label created for -mrelocatable, to call to so we can get the address of the GOT section */ int rs6000_pic_labelno; #ifdef USING_ELFOS_H /* Which abi to adhere to */ const char *rs6000_abi_name; /* Semantics of the small data area */ enum rs6000_sdata_type rs6000_sdata = SDATA_DATA; /* Which small data model to use */ const char *rs6000_sdata_name = (char *)0; /* Counter for labels which are to be placed in .fixup. */ int fixuplabelno = 0; #endif /* Bit size of immediate TLS offsets and string from which it is decoded. */ int rs6000_tls_size = 32; const char *rs6000_tls_size_string; /* ABI enumeration available for subtarget to use. */ enum rs6000_abi rs6000_current_abi; /* Whether to use variant of AIX ABI for PowerPC64 Linux. */ int dot_symbols; /* Debug flags */ const char *rs6000_debug_name; int rs6000_debug_stack; /* debug stack applications */ int rs6000_debug_arg; /* debug argument handling */ int rs6000_debug_reg; /* debug register classes */ int rs6000_debug_addr; /* debug memory addressing */ int rs6000_debug_cost; /* debug rtx_costs */ /* Specify the machine mode that pointers have. After generation of rtl, the compiler makes no further distinction between pointers and any other objects of this machine mode. The type is unsigned since not all things that include rs6000.h also include machmode.h. */ unsigned rs6000_pmode; /* Width in bits of a pointer. */ unsigned rs6000_pointer_size; /* Value is TRUE if register/mode pair is acceptable. */ bool rs6000_hard_regno_mode_ok_p[NUM_MACHINE_MODES][FIRST_PSEUDO_REGISTER]; /* Maximum number of registers needed for a given register class and mode. */ unsigned char rs6000_class_max_nregs[NUM_MACHINE_MODES][LIM_REG_CLASSES]; /* How many registers are needed for a given register and mode. */ unsigned char rs6000_hard_regno_nregs[NUM_MACHINE_MODES][FIRST_PSEUDO_REGISTER]; /* Map register number to register class. */ enum reg_class rs6000_regno_regclass[FIRST_PSEUDO_REGISTER]; /* Reload functions based on the type and the vector unit. */ static enum insn_code rs6000_vector_reload[NUM_MACHINE_MODES][2]; /* Built in types. */ tree rs6000_builtin_types[RS6000_BTI_MAX]; tree rs6000_builtin_decls[RS6000_BUILTIN_COUNT]; const char *rs6000_traceback_name; static enum { traceback_default = 0, traceback_none, traceback_part, traceback_full } rs6000_traceback; /* Flag to say the TOC is initialized */ int toc_initialized; char toc_label_name[10]; /* Cached value of rs6000_variable_issue. This is cached in rs6000_variable_issue hook and returned from rs6000_sched_reorder2. */ static short cached_can_issue_more; static GTY(()) section *read_only_data_section; static GTY(()) section *private_data_section; static GTY(()) section *read_only_private_data_section; static GTY(()) section *sdata2_section; static GTY(()) section *toc_section; /* Control alignment for fields within structures. */ /* String from -malign-XXXXX. */ int rs6000_alignment_flags; /* True for any options that were explicitly set. */ static struct { bool aix_struct_ret; /* True if -maix-struct-ret was used. */ bool alignment; /* True if -malign- was used. */ bool spe_abi; /* True if -mabi=spe/no-spe was used. */ bool altivec_abi; /* True if -mabi=altivec/no-altivec used. */ bool spe; /* True if -mspe= was used. */ bool float_gprs; /* True if -mfloat-gprs= was used. */ bool long_double; /* True if -mlong-double- was used. */ bool ieee; /* True if -mabi=ieee/ibmlongdouble used. */ bool vrsave; /* True if -mvrsave was used. */ } rs6000_explicit_options; struct builtin_description { /* mask is not const because we're going to alter it below. This nonsense will go away when we rewrite the -march infrastructure to give us more target flag bits. */ unsigned int mask; const enum insn_code icode; const char *const name; const enum rs6000_builtins code; }; /* Describe the vector unit used for modes. */ enum rs6000_vector rs6000_vector_unit[NUM_MACHINE_MODES]; enum rs6000_vector rs6000_vector_mem[NUM_MACHINE_MODES]; /* Register classes for various constraints that are based on the target switches. */ enum reg_class rs6000_constraints[RS6000_CONSTRAINT_MAX]; /* Describe the alignment of a vector. */ int rs6000_vector_align[NUM_MACHINE_MODES]; /* Map selected modes to types for builtins. */ static GTY(()) tree builtin_mode_to_type[MAX_MACHINE_MODE][2]; /* Target cpu costs. */ struct processor_costs { const int mulsi; /* cost of SImode multiplication. */ const int mulsi_const; /* cost of SImode multiplication by constant. */ const int mulsi_const9; /* cost of SImode mult by short constant. */ const int muldi; /* cost of DImode multiplication. */ const int divsi; /* cost of SImode division. */ const int divdi; /* cost of DImode division. */ const int fp; /* cost of simple SFmode and DFmode insns. */ const int dmul; /* cost of DFmode multiplication (and fmadd). */ const int sdiv; /* cost of SFmode division (fdivs). */ const int ddiv; /* cost of DFmode division (fdiv). */ const int cache_line_size; /* cache line size in bytes. */ const int l1_cache_size; /* size of l1 cache, in kilobytes. */ const int l2_cache_size; /* size of l2 cache, in kilobytes. */ const int simultaneous_prefetches; /* number of parallel prefetch operations. */ }; const struct processor_costs *rs6000_cost; /* Processor costs (relative to an add) */ /* Instruction size costs on 32bit processors. */ static const struct processor_costs size32_cost = { COSTS_N_INSNS (1), /* mulsi */ COSTS_N_INSNS (1), /* mulsi_const */ COSTS_N_INSNS (1), /* mulsi_const9 */ COSTS_N_INSNS (1), /* muldi */ COSTS_N_INSNS (1), /* divsi */ COSTS_N_INSNS (1), /* divdi */ COSTS_N_INSNS (1), /* fp */ COSTS_N_INSNS (1), /* dmul */ COSTS_N_INSNS (1), /* sdiv */ COSTS_N_INSNS (1), /* ddiv */ 32, 0, 0, 0, }; /* Instruction size costs on 64bit processors. */ static const struct processor_costs size64_cost = { COSTS_N_INSNS (1), /* mulsi */ COSTS_N_INSNS (1), /* mulsi_const */ COSTS_N_INSNS (1), /* mulsi_const9 */ COSTS_N_INSNS (1), /* muldi */ COSTS_N_INSNS (1), /* divsi */ COSTS_N_INSNS (1), /* divdi */ COSTS_N_INSNS (1), /* fp */ COSTS_N_INSNS (1), /* dmul */ COSTS_N_INSNS (1), /* sdiv */ COSTS_N_INSNS (1), /* ddiv */ 128, 0, 0, 0, }; /* Instruction costs on RIOS1 processors. */ static const struct processor_costs rios1_cost = { COSTS_N_INSNS (5), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (3), /* mulsi_const9 */ COSTS_N_INSNS (5), /* muldi */ COSTS_N_INSNS (19), /* divsi */ COSTS_N_INSNS (19), /* divdi */ COSTS_N_INSNS (2), /* fp */ COSTS_N_INSNS (2), /* dmul */ COSTS_N_INSNS (19), /* sdiv */ COSTS_N_INSNS (19), /* ddiv */ 128, /* cache line size */ 64, /* l1 cache */ 512, /* l2 cache */ 0, /* streams */ }; /* Instruction costs on RIOS2 processors. */ static const struct processor_costs rios2_cost = { COSTS_N_INSNS (2), /* mulsi */ COSTS_N_INSNS (2), /* mulsi_const */ COSTS_N_INSNS (2), /* mulsi_const9 */ COSTS_N_INSNS (2), /* muldi */ COSTS_N_INSNS (13), /* divsi */ COSTS_N_INSNS (13), /* divdi */ COSTS_N_INSNS (2), /* fp */ COSTS_N_INSNS (2), /* dmul */ COSTS_N_INSNS (17), /* sdiv */ COSTS_N_INSNS (17), /* ddiv */ 256, /* cache line size */ 256, /* l1 cache */ 1024, /* l2 cache */ 0, /* streams */ }; /* Instruction costs on RS64A processors. */ static const struct processor_costs rs64a_cost = { COSTS_N_INSNS (20), /* mulsi */ COSTS_N_INSNS (12), /* mulsi_const */ COSTS_N_INSNS (8), /* mulsi_const9 */ COSTS_N_INSNS (34), /* muldi */ COSTS_N_INSNS (65), /* divsi */ COSTS_N_INSNS (67), /* divdi */ COSTS_N_INSNS (4), /* fp */ COSTS_N_INSNS (4), /* dmul */ COSTS_N_INSNS (31), /* sdiv */ COSTS_N_INSNS (31), /* ddiv */ 128, /* cache line size */ 128, /* l1 cache */ 2048, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on MPCCORE processors. */ static const struct processor_costs mpccore_cost = { COSTS_N_INSNS (2), /* mulsi */ COSTS_N_INSNS (2), /* mulsi_const */ COSTS_N_INSNS (2), /* mulsi_const9 */ COSTS_N_INSNS (2), /* muldi */ COSTS_N_INSNS (6), /* divsi */ COSTS_N_INSNS (6), /* divdi */ COSTS_N_INSNS (4), /* fp */ COSTS_N_INSNS (5), /* dmul */ COSTS_N_INSNS (10), /* sdiv */ COSTS_N_INSNS (17), /* ddiv */ 32, /* cache line size */ 4, /* l1 cache */ 16, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC403 processors. */ static const struct processor_costs ppc403_cost = { COSTS_N_INSNS (4), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (4), /* mulsi_const9 */ COSTS_N_INSNS (4), /* muldi */ COSTS_N_INSNS (33), /* divsi */ COSTS_N_INSNS (33), /* divdi */ COSTS_N_INSNS (11), /* fp */ COSTS_N_INSNS (11), /* dmul */ COSTS_N_INSNS (11), /* sdiv */ COSTS_N_INSNS (11), /* ddiv */ 32, /* cache line size */ 4, /* l1 cache */ 16, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC405 processors. */ static const struct processor_costs ppc405_cost = { COSTS_N_INSNS (5), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (3), /* mulsi_const9 */ COSTS_N_INSNS (5), /* muldi */ COSTS_N_INSNS (35), /* divsi */ COSTS_N_INSNS (35), /* divdi */ COSTS_N_INSNS (11), /* fp */ COSTS_N_INSNS (11), /* dmul */ COSTS_N_INSNS (11), /* sdiv */ COSTS_N_INSNS (11), /* ddiv */ 32, /* cache line size */ 16, /* l1 cache */ 128, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC440 processors. */ static const struct processor_costs ppc440_cost = { COSTS_N_INSNS (3), /* mulsi */ COSTS_N_INSNS (2), /* mulsi_const */ COSTS_N_INSNS (2), /* mulsi_const9 */ COSTS_N_INSNS (3), /* muldi */ COSTS_N_INSNS (34), /* divsi */ COSTS_N_INSNS (34), /* divdi */ COSTS_N_INSNS (5), /* fp */ COSTS_N_INSNS (5), /* dmul */ COSTS_N_INSNS (19), /* sdiv */ COSTS_N_INSNS (33), /* ddiv */ 32, /* cache line size */ 32, /* l1 cache */ 256, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC476 processors. */ static const struct processor_costs ppc476_cost = { COSTS_N_INSNS (4), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (4), /* mulsi_const9 */ COSTS_N_INSNS (4), /* muldi */ COSTS_N_INSNS (11), /* divsi */ COSTS_N_INSNS (11), /* divdi */ COSTS_N_INSNS (6), /* fp */ COSTS_N_INSNS (6), /* dmul */ COSTS_N_INSNS (19), /* sdiv */ COSTS_N_INSNS (33), /* ddiv */ 32, /* l1 cache line size */ 32, /* l1 cache */ 512, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC601 processors. */ static const struct processor_costs ppc601_cost = { COSTS_N_INSNS (5), /* mulsi */ COSTS_N_INSNS (5), /* mulsi_const */ COSTS_N_INSNS (5), /* mulsi_const9 */ COSTS_N_INSNS (5), /* muldi */ COSTS_N_INSNS (36), /* divsi */ COSTS_N_INSNS (36), /* divdi */ COSTS_N_INSNS (4), /* fp */ COSTS_N_INSNS (5), /* dmul */ COSTS_N_INSNS (17), /* sdiv */ COSTS_N_INSNS (31), /* ddiv */ 32, /* cache line size */ 32, /* l1 cache */ 256, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC603 processors. */ static const struct processor_costs ppc603_cost = { COSTS_N_INSNS (5), /* mulsi */ COSTS_N_INSNS (3), /* mulsi_const */ COSTS_N_INSNS (2), /* mulsi_const9 */ COSTS_N_INSNS (5), /* muldi */ COSTS_N_INSNS (37), /* divsi */ COSTS_N_INSNS (37), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (4), /* dmul */ COSTS_N_INSNS (18), /* sdiv */ COSTS_N_INSNS (33), /* ddiv */ 32, /* cache line size */ 8, /* l1 cache */ 64, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC604 processors. */ static const struct processor_costs ppc604_cost = { COSTS_N_INSNS (4), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (4), /* mulsi_const9 */ COSTS_N_INSNS (4), /* muldi */ COSTS_N_INSNS (20), /* divsi */ COSTS_N_INSNS (20), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (3), /* dmul */ COSTS_N_INSNS (18), /* sdiv */ COSTS_N_INSNS (32), /* ddiv */ 32, /* cache line size */ 16, /* l1 cache */ 512, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC604e processors. */ static const struct processor_costs ppc604e_cost = { COSTS_N_INSNS (2), /* mulsi */ COSTS_N_INSNS (2), /* mulsi_const */ COSTS_N_INSNS (2), /* mulsi_const9 */ COSTS_N_INSNS (2), /* muldi */ COSTS_N_INSNS (20), /* divsi */ COSTS_N_INSNS (20), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (3), /* dmul */ COSTS_N_INSNS (18), /* sdiv */ COSTS_N_INSNS (32), /* ddiv */ 32, /* cache line size */ 32, /* l1 cache */ 1024, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC620 processors. */ static const struct processor_costs ppc620_cost = { COSTS_N_INSNS (5), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (3), /* mulsi_const9 */ COSTS_N_INSNS (7), /* muldi */ COSTS_N_INSNS (21), /* divsi */ COSTS_N_INSNS (37), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (3), /* dmul */ COSTS_N_INSNS (18), /* sdiv */ COSTS_N_INSNS (32), /* ddiv */ 128, /* cache line size */ 32, /* l1 cache */ 1024, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC630 processors. */ static const struct processor_costs ppc630_cost = { COSTS_N_INSNS (5), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (3), /* mulsi_const9 */ COSTS_N_INSNS (7), /* muldi */ COSTS_N_INSNS (21), /* divsi */ COSTS_N_INSNS (37), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (3), /* dmul */ COSTS_N_INSNS (17), /* sdiv */ COSTS_N_INSNS (21), /* ddiv */ 128, /* cache line size */ 64, /* l1 cache */ 1024, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on Cell processor. */ /* COSTS_N_INSNS (1) ~ one add. */ static const struct processor_costs ppccell_cost = { COSTS_N_INSNS (9/2)+2, /* mulsi */ COSTS_N_INSNS (6/2), /* mulsi_const */ COSTS_N_INSNS (6/2), /* mulsi_const9 */ COSTS_N_INSNS (15/2)+2, /* muldi */ COSTS_N_INSNS (38/2), /* divsi */ COSTS_N_INSNS (70/2), /* divdi */ COSTS_N_INSNS (10/2), /* fp */ COSTS_N_INSNS (10/2), /* dmul */ COSTS_N_INSNS (74/2), /* sdiv */ COSTS_N_INSNS (74/2), /* ddiv */ 128, /* cache line size */ 32, /* l1 cache */ 512, /* l2 cache */ 6, /* streams */ }; /* Instruction costs on PPC750 and PPC7400 processors. */ static const struct processor_costs ppc750_cost = { COSTS_N_INSNS (5), /* mulsi */ COSTS_N_INSNS (3), /* mulsi_const */ COSTS_N_INSNS (2), /* mulsi_const9 */ COSTS_N_INSNS (5), /* muldi */ COSTS_N_INSNS (17), /* divsi */ COSTS_N_INSNS (17), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (3), /* dmul */ COSTS_N_INSNS (17), /* sdiv */ COSTS_N_INSNS (31), /* ddiv */ 32, /* cache line size */ 32, /* l1 cache */ 512, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC7450 processors. */ static const struct processor_costs ppc7450_cost = { COSTS_N_INSNS (4), /* mulsi */ COSTS_N_INSNS (3), /* mulsi_const */ COSTS_N_INSNS (3), /* mulsi_const9 */ COSTS_N_INSNS (4), /* muldi */ COSTS_N_INSNS (23), /* divsi */ COSTS_N_INSNS (23), /* divdi */ COSTS_N_INSNS (5), /* fp */ COSTS_N_INSNS (5), /* dmul */ COSTS_N_INSNS (21), /* sdiv */ COSTS_N_INSNS (35), /* ddiv */ 32, /* cache line size */ 32, /* l1 cache */ 1024, /* l2 cache */ 1, /* streams */ }; /* Instruction costs on PPC8540 processors. */ static const struct processor_costs ppc8540_cost = { COSTS_N_INSNS (4), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (4), /* mulsi_const9 */ COSTS_N_INSNS (4), /* muldi */ COSTS_N_INSNS (19), /* divsi */ COSTS_N_INSNS (19), /* divdi */ COSTS_N_INSNS (4), /* fp */ COSTS_N_INSNS (4), /* dmul */ COSTS_N_INSNS (29), /* sdiv */ COSTS_N_INSNS (29), /* ddiv */ 32, /* cache line size */ 32, /* l1 cache */ 256, /* l2 cache */ 1, /* prefetch streams /*/ }; /* Instruction costs on E300C2 and E300C3 cores. */ static const struct processor_costs ppce300c2c3_cost = { COSTS_N_INSNS (4), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (4), /* mulsi_const9 */ COSTS_N_INSNS (4), /* muldi */ COSTS_N_INSNS (19), /* divsi */ COSTS_N_INSNS (19), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (4), /* dmul */ COSTS_N_INSNS (18), /* sdiv */ COSTS_N_INSNS (33), /* ddiv */ 32, 16, /* l1 cache */ 16, /* l2 cache */ 1, /* prefetch streams /*/ }; /* Instruction costs on PPCE500MC processors. */ static const struct processor_costs ppce500mc_cost = { COSTS_N_INSNS (4), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (4), /* mulsi_const9 */ COSTS_N_INSNS (4), /* muldi */ COSTS_N_INSNS (14), /* divsi */ COSTS_N_INSNS (14), /* divdi */ COSTS_N_INSNS (8), /* fp */ COSTS_N_INSNS (10), /* dmul */ COSTS_N_INSNS (36), /* sdiv */ COSTS_N_INSNS (66), /* ddiv */ 64, /* cache line size */ 32, /* l1 cache */ 128, /* l2 cache */ 1, /* prefetch streams /*/ }; /* Instruction costs on PPCE500MC64 processors. */ static const struct processor_costs ppce500mc64_cost = { COSTS_N_INSNS (4), /* mulsi */ COSTS_N_INSNS (4), /* mulsi_const */ COSTS_N_INSNS (4), /* mulsi_const9 */ COSTS_N_INSNS (4), /* muldi */ COSTS_N_INSNS (14), /* divsi */ COSTS_N_INSNS (14), /* divdi */ COSTS_N_INSNS (4), /* fp */ COSTS_N_INSNS (10), /* dmul */ COSTS_N_INSNS (36), /* sdiv */ COSTS_N_INSNS (66), /* ddiv */ 64, /* cache line size */ 32, /* l1 cache */ 128, /* l2 cache */ 1, /* prefetch streams /*/ }; /* Instruction costs on POWER4 and POWER5 processors. */ static const struct processor_costs power4_cost = { COSTS_N_INSNS (3), /* mulsi */ COSTS_N_INSNS (2), /* mulsi_const */ COSTS_N_INSNS (2), /* mulsi_const9 */ COSTS_N_INSNS (4), /* muldi */ COSTS_N_INSNS (18), /* divsi */ COSTS_N_INSNS (34), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (3), /* dmul */ COSTS_N_INSNS (17), /* sdiv */ COSTS_N_INSNS (17), /* ddiv */ 128, /* cache line size */ 32, /* l1 cache */ 1024, /* l2 cache */ 8, /* prefetch streams /*/ }; /* Instruction costs on POWER6 processors. */ static const struct processor_costs power6_cost = { COSTS_N_INSNS (8), /* mulsi */ COSTS_N_INSNS (8), /* mulsi_const */ COSTS_N_INSNS (8), /* mulsi_const9 */ COSTS_N_INSNS (8), /* muldi */ COSTS_N_INSNS (22), /* divsi */ COSTS_N_INSNS (28), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (3), /* dmul */ COSTS_N_INSNS (13), /* sdiv */ COSTS_N_INSNS (16), /* ddiv */ 128, /* cache line size */ 64, /* l1 cache */ 2048, /* l2 cache */ 16, /* prefetch streams */ }; /* Instruction costs on POWER7 processors. */ static const struct processor_costs power7_cost = { COSTS_N_INSNS (2), /* mulsi */ COSTS_N_INSNS (2), /* mulsi_const */ COSTS_N_INSNS (2), /* mulsi_const9 */ COSTS_N_INSNS (2), /* muldi */ COSTS_N_INSNS (18), /* divsi */ COSTS_N_INSNS (34), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (3), /* dmul */ COSTS_N_INSNS (13), /* sdiv */ COSTS_N_INSNS (16), /* ddiv */ 128, /* cache line size */ 32, /* l1 cache */ 256, /* l2 cache */ 12, /* prefetch streams */ }; /* Instruction costs on POWER A2 processors. */ static const struct processor_costs ppca2_cost = { COSTS_N_INSNS (16), /* mulsi */ COSTS_N_INSNS (16), /* mulsi_const */ COSTS_N_INSNS (16), /* mulsi_const9 */ COSTS_N_INSNS (16), /* muldi */ COSTS_N_INSNS (22), /* divsi */ COSTS_N_INSNS (28), /* divdi */ COSTS_N_INSNS (3), /* fp */ COSTS_N_INSNS (3), /* dmul */ COSTS_N_INSNS (59), /* sdiv */ COSTS_N_INSNS (72), /* ddiv */ 64, 16, /* l1 cache */ 2048, /* l2 cache */ 16, /* prefetch streams */ }; /* Table that classifies rs6000 builtin functions (pure, const, etc.). */ #undef RS6000_BUILTIN #undef RS6000_BUILTIN_EQUATE #define RS6000_BUILTIN(NAME, TYPE) TYPE, #define RS6000_BUILTIN_EQUATE(NAME, VALUE) static const enum rs6000_btc builtin_classify[(int)RS6000_BUILTIN_COUNT] = { #include "rs6000-builtin.def" }; #undef RS6000_BUILTIN #undef RS6000_BUILTIN_EQUATE static bool rs6000_function_ok_for_sibcall (tree, tree); static const char *rs6000_invalid_within_doloop (const_rtx); static bool rs6000_legitimate_address_p (enum machine_mode, rtx, bool); static bool rs6000_debug_legitimate_address_p (enum machine_mode, rtx, bool); static rtx rs6000_generate_compare (rtx, enum machine_mode); static void rs6000_emit_stack_tie (void); static void rs6000_frame_related (rtx, rtx, HOST_WIDE_INT, rtx, rtx); static bool spe_func_has_64bit_regs_p (void); static void emit_frame_save (rtx, rtx, enum machine_mode, unsigned int, int, HOST_WIDE_INT); static rtx gen_frame_mem_offset (enum machine_mode, rtx, int); static unsigned rs6000_hash_constant (rtx); static unsigned toc_hash_function (const void *); static int toc_hash_eq (const void *, const void *); static bool reg_offset_addressing_ok_p (enum machine_mode); static bool virtual_stack_registers_memory_p (rtx); static bool constant_pool_expr_p (rtx); static bool legitimate_small_data_p (enum machine_mode, rtx); static bool legitimate_lo_sum_address_p (enum machine_mode, rtx, int); static struct machine_function * rs6000_init_machine_status (void); static bool rs6000_assemble_integer (rtx, unsigned int, int); static bool no_global_regs_above (int, bool); #ifdef HAVE_GAS_HIDDEN static void rs6000_assemble_visibility (tree, int); #endif static int rs6000_ra_ever_killed (void); static tree rs6000_handle_longcall_attribute (tree *, tree, tree, int, bool *); static tree rs6000_handle_altivec_attribute (tree *, tree, tree, int, bool *); static bool rs6000_ms_bitfield_layout_p (const_tree); static tree rs6000_handle_struct_attribute (tree *, tree, tree, int, bool *); static void rs6000_eliminate_indexed_memrefs (rtx operands[2]); static const char *rs6000_mangle_type (const_tree); static void rs6000_set_default_type_attributes (tree); static rtx rs6000_savres_routine_sym (rs6000_stack_t *, bool, bool, bool); static rtx rs6000_emit_stack_reset (rs6000_stack_t *, rtx, rtx, int, bool); static rtx rs6000_make_savres_rtx (rs6000_stack_t *, rtx, int, enum machine_mode, bool, bool, bool); static bool rs6000_reg_live_or_pic_offset_p (int); static tree rs6000_builtin_vectorized_function (tree, tree, tree); static int rs6000_savres_strategy (rs6000_stack_t *, bool, int, int); static void rs6000_restore_saved_cr (rtx, int); static void rs6000_output_function_prologue (FILE *, HOST_WIDE_INT); static void rs6000_output_function_epilogue (FILE *, HOST_WIDE_INT); static void rs6000_output_mi_thunk (FILE *, tree, HOST_WIDE_INT, HOST_WIDE_INT, tree); static rtx rs6000_emit_set_long_const (rtx, HOST_WIDE_INT, HOST_WIDE_INT); static bool rs6000_return_in_memory (const_tree, const_tree); static rtx rs6000_function_value (const_tree, const_tree, bool); static void rs6000_file_start (void); #if TARGET_ELF static int rs6000_elf_reloc_rw_mask (void); static void rs6000_elf_asm_out_constructor (rtx, int); static void rs6000_elf_asm_out_destructor (rtx, int); static void rs6000_elf_end_indicate_exec_stack (void) ATTRIBUTE_UNUSED; static void rs6000_elf_asm_init_sections (void); static section *rs6000_elf_select_rtx_section (enum machine_mode, rtx, unsigned HOST_WIDE_INT); static void rs6000_elf_encode_section_info (tree, rtx, int) ATTRIBUTE_UNUSED; #endif static bool rs6000_use_blocks_for_constant_p (enum machine_mode, const_rtx); static void rs6000_alloc_sdmode_stack_slot (void); static void rs6000_instantiate_decls (void); #if TARGET_XCOFF static void rs6000_xcoff_asm_output_anchor (rtx); static void rs6000_xcoff_asm_globalize_label (FILE *, const char *); static void rs6000_xcoff_asm_init_sections (void); static int rs6000_xcoff_reloc_rw_mask (void); static void rs6000_xcoff_asm_named_section (const char *, unsigned int, tree); static section *rs6000_xcoff_select_section (tree, int, unsigned HOST_WIDE_INT); static void rs6000_xcoff_unique_section (tree, int); static section *rs6000_xcoff_select_rtx_section (enum machine_mode, rtx, unsigned HOST_WIDE_INT); static const char * rs6000_xcoff_strip_name_encoding (const char *); static unsigned int rs6000_xcoff_section_type_flags (tree, const char *, int); static void rs6000_xcoff_file_start (void); static void rs6000_xcoff_file_end (void); #endif static int rs6000_variable_issue (FILE *, int, rtx, int); static bool rs6000_rtx_costs (rtx, int, int, int *, bool); static bool rs6000_debug_rtx_costs (rtx, int, int, int *, bool); static int rs6000_debug_address_cost (rtx, bool); static int rs6000_adjust_cost (rtx, rtx, rtx, int); static int rs6000_debug_adjust_cost (rtx, rtx, rtx, int); static void rs6000_sched_init (FILE *, int, int); static bool is_microcoded_insn (rtx); static bool is_nonpipeline_insn (rtx); static bool is_cracked_insn (rtx); static bool is_branch_slot_insn (rtx); static bool is_load_insn (rtx); static rtx get_store_dest (rtx pat); static bool is_store_insn (rtx); static bool set_to_load_agen (rtx,rtx); static bool adjacent_mem_locations (rtx,rtx); static int rs6000_adjust_priority (rtx, int); static int rs6000_issue_rate (void); static bool rs6000_is_costly_dependence (dep_t, int, int); static rtx get_next_active_insn (rtx, rtx); static bool insn_terminates_group_p (rtx , enum group_termination); static bool insn_must_be_first_in_group (rtx); static bool insn_must_be_last_in_group (rtx); static bool is_costly_group (rtx *, rtx); static int force_new_group (int, FILE *, rtx *, rtx, bool *, int, int *); static int redefine_groups (FILE *, int, rtx, rtx); static int pad_groups (FILE *, int, rtx, rtx); static void rs6000_sched_finish (FILE *, int); static int rs6000_sched_reorder (FILE *, int, rtx *, int *, int); static int rs6000_sched_reorder2 (FILE *, int, rtx *, int *, int); static int rs6000_use_sched_lookahead (void); static int rs6000_use_sched_lookahead_guard (rtx); static void * rs6000_alloc_sched_context (void); static void rs6000_init_sched_context (void *, bool); static void rs6000_set_sched_context (void *); static void rs6000_free_sched_context (void *); static tree rs6000_builtin_reciprocal (unsigned int, bool, bool); static tree rs6000_builtin_mask_for_load (void); static tree rs6000_builtin_mul_widen_even (tree); static tree rs6000_builtin_mul_widen_odd (tree); static tree rs6000_builtin_conversion (unsigned int, tree); static tree rs6000_builtin_vec_perm (tree, tree *); static bool rs6000_builtin_support_vector_misalignment (enum machine_mode, const_tree, int, bool); static void def_builtin (int, const char *, tree, int); static bool rs6000_vector_alignment_reachable (const_tree, bool); static void rs6000_init_builtins (void); static tree rs6000_builtin_decl (unsigned, bool); static rtx rs6000_expand_unop_builtin (enum insn_code, tree, rtx); static rtx rs6000_expand_binop_builtin (enum insn_code, tree, rtx); static rtx rs6000_expand_ternop_builtin (enum insn_code, tree, rtx); static rtx rs6000_expand_builtin (tree, rtx, rtx, enum machine_mode, int); static void altivec_init_builtins (void); static unsigned builtin_hash_function (const void *); static int builtin_hash_eq (const void *, const void *); static tree builtin_function_type (enum machine_mode, enum machine_mode, enum machine_mode, enum machine_mode, enum rs6000_builtins, const char *name); static void rs6000_common_init_builtins (void); static void rs6000_init_libfuncs (void); static void paired_init_builtins (void); static rtx paired_expand_builtin (tree, rtx, bool *); static rtx paired_expand_lv_builtin (enum insn_code, tree, rtx); static rtx paired_expand_stv_builtin (enum insn_code, tree); static rtx paired_expand_predicate_builtin (enum insn_code, tree, rtx); static void enable_mask_for_builtins (struct builtin_description *, int, enum rs6000_builtins, enum rs6000_builtins); static void spe_init_builtins (void); static rtx spe_expand_builtin (tree, rtx, bool *); static rtx spe_expand_stv_builtin (enum insn_code, tree); static rtx spe_expand_predicate_builtin (enum insn_code, tree, rtx); static rtx spe_expand_evsel_builtin (enum insn_code, tree, rtx); static int rs6000_emit_int_cmove (rtx, rtx, rtx, rtx); static rs6000_stack_t *rs6000_stack_info (void); static void debug_stack_info (rs6000_stack_t *); static rtx altivec_expand_builtin (tree, rtx, bool *); static rtx altivec_expand_ld_builtin (tree, rtx, bool *); static rtx altivec_expand_st_builtin (tree, rtx, bool *); static rtx altivec_expand_dst_builtin (tree, rtx, bool *); static rtx altivec_expand_abs_builtin (enum insn_code, tree, rtx); static rtx altivec_expand_predicate_builtin (enum insn_code, tree, rtx); static rtx altivec_expand_stv_builtin (enum insn_code, tree); static rtx altivec_expand_vec_init_builtin (tree, tree, rtx); static rtx altivec_expand_vec_set_builtin (tree); static rtx altivec_expand_vec_ext_builtin (tree, rtx); static int get_element_number (tree, tree); static bool rs6000_handle_option (size_t, const char *, int); static void rs6000_parse_tls_size_option (void); static void rs6000_parse_yes_no_option (const char *, const char *, int *); static int first_altivec_reg_to_save (void); static unsigned int compute_vrsave_mask (void); static void compute_save_world_info (rs6000_stack_t *info_ptr); static void is_altivec_return_reg (rtx, void *); static rtx generate_set_vrsave (rtx, rs6000_stack_t *, int); int easy_vector_constant (rtx, enum machine_mode); static rtx rs6000_dwarf_register_span (rtx); static void rs6000_init_dwarf_reg_sizes_extra (tree); static rtx rs6000_legitimize_address (rtx, rtx, enum machine_mode); static rtx rs6000_debug_legitimize_address (rtx, rtx, enum machine_mode); static rtx rs6000_legitimize_tls_address (rtx, enum tls_model); static void rs6000_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED; static rtx rs6000_delegitimize_address (rtx); static rtx rs6000_tls_get_addr (void); static rtx rs6000_got_sym (void); static int rs6000_tls_symbol_ref_1 (rtx *, void *); static const char *rs6000_get_some_local_dynamic_name (void); static int rs6000_get_some_local_dynamic_name_1 (rtx *, void *); static rtx rs6000_complex_function_value (enum machine_mode); static rtx rs6000_spe_function_arg (CUMULATIVE_ARGS *, enum machine_mode, tree); static void rs6000_darwin64_record_arg_advance_flush (CUMULATIVE_ARGS *, HOST_WIDE_INT); static void rs6000_darwin64_record_arg_advance_recurse (CUMULATIVE_ARGS *, tree, HOST_WIDE_INT); static void rs6000_darwin64_record_arg_flush (CUMULATIVE_ARGS *, HOST_WIDE_INT, rtx[], int *); static void rs6000_darwin64_record_arg_recurse (CUMULATIVE_ARGS *, const_tree, HOST_WIDE_INT, rtx[], int *); static rtx rs6000_darwin64_record_arg (CUMULATIVE_ARGS *, const_tree, int, bool); static rtx rs6000_mixed_function_arg (enum machine_mode, tree, int); static void rs6000_move_block_from_reg (int regno, rtx x, int nregs); static void setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode, tree, int *, int); static bool rs6000_pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool); static int rs6000_arg_partial_bytes (CUMULATIVE_ARGS *, enum machine_mode, tree, bool); static const char *invalid_arg_for_unprototyped_fn (const_tree, const_tree, const_tree); #if TARGET_MACHO static void macho_branch_islands (void); static int no_previous_def (tree function_name); static tree get_prev_label (tree function_name); static void rs6000_darwin_file_start (void); #endif static tree rs6000_build_builtin_va_list (void); static void rs6000_va_start (tree, rtx); static tree rs6000_gimplify_va_arg (tree, tree, gimple_seq *, gimple_seq *); static bool rs6000_must_pass_in_stack (enum machine_mode, const_tree); static bool rs6000_scalar_mode_supported_p (enum machine_mode); static bool rs6000_vector_mode_supported_p (enum machine_mode); static rtx rs6000_emit_vector_compare_inner (enum rtx_code, rtx, rtx); static rtx rs6000_emit_vector_compare (enum rtx_code, rtx, rtx, enum machine_mode); static tree rs6000_stack_protect_fail (void); static rtx rs6000_legitimize_reload_address (rtx, enum machine_mode, int, int, int, int *); static rtx rs6000_debug_legitimize_reload_address (rtx, enum machine_mode, int, int, int, int *); rtx (*rs6000_legitimize_reload_address_ptr) (rtx, enum machine_mode, int, int, int, int *) = rs6000_legitimize_reload_address; static bool rs6000_mode_dependent_address (rtx); static bool rs6000_debug_mode_dependent_address (rtx); bool (*rs6000_mode_dependent_address_ptr) (rtx) = rs6000_mode_dependent_address; static enum reg_class rs6000_secondary_reload_class (enum reg_class, enum machine_mode, rtx); static enum reg_class rs6000_debug_secondary_reload_class (enum reg_class, enum machine_mode, rtx); enum reg_class (*rs6000_secondary_reload_class_ptr) (enum reg_class, enum machine_mode, rtx) = rs6000_secondary_reload_class; static enum reg_class rs6000_preferred_reload_class (rtx, enum reg_class); static enum reg_class rs6000_debug_preferred_reload_class (rtx, enum reg_class); enum reg_class (*rs6000_preferred_reload_class_ptr) (rtx, enum reg_class) = rs6000_preferred_reload_class; static bool rs6000_secondary_memory_needed (enum reg_class, enum reg_class, enum machine_mode); static bool rs6000_debug_secondary_memory_needed (enum reg_class, enum reg_class, enum machine_mode); bool (*rs6000_secondary_memory_needed_ptr) (enum reg_class, enum reg_class, enum machine_mode) = rs6000_secondary_memory_needed; static bool rs6000_cannot_change_mode_class (enum machine_mode, enum machine_mode, enum reg_class); static bool rs6000_debug_cannot_change_mode_class (enum machine_mode, enum machine_mode, enum reg_class); bool (*rs6000_cannot_change_mode_class_ptr) (enum machine_mode, enum machine_mode, enum reg_class) = rs6000_cannot_change_mode_class; static enum reg_class rs6000_secondary_reload (bool, rtx, enum reg_class, enum machine_mode, struct secondary_reload_info *); static const enum reg_class *rs6000_ira_cover_classes (void); const int INSN_NOT_AVAILABLE = -1; static enum machine_mode rs6000_eh_return_filter_mode (void); static bool rs6000_can_eliminate (const int, const int); static void rs6000_trampoline_init (rtx, tree, rtx); /* Hash table stuff for keeping track of TOC entries. */ struct GTY(()) toc_hash_struct { /* `key' will satisfy CONSTANT_P; in fact, it will satisfy ASM_OUTPUT_SPECIAL_POOL_ENTRY_P. */ rtx key; enum machine_mode key_mode; int labelno; }; static GTY ((param_is (struct toc_hash_struct))) htab_t toc_hash_table; /* Hash table to keep track of the argument types for builtin functions. */ struct GTY(()) builtin_hash_struct { tree type; enum machine_mode mode[4]; /* return value + 3 arguments. */ unsigned char uns_p[4]; /* and whether the types are unsigned. */ }; static GTY ((param_is (struct builtin_hash_struct))) htab_t builtin_hash_table; /* Default register names. */ char rs6000_reg_names[][8] = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "mq", "lr", "ctr","ap", "0", "1", "2", "3", "4", "5", "6", "7", "xer", /* AltiVec registers. */ "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "vrsave", "vscr", /* SPE registers. */ "spe_acc", "spefscr", /* Soft frame pointer. */ "sfp" }; #ifdef TARGET_REGNAMES static const char alt_reg_names[][8] = { "%r0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "%r16", "%r17", "%r18", "%r19", "%r20", "%r21", "%r22", "%r23", "%r24", "%r25", "%r26", "%r27", "%r28", "%r29", "%r30", "%r31", "%f0", "%f1", "%f2", "%f3", "%f4", "%f5", "%f6", "%f7", "%f8", "%f9", "%f10", "%f11", "%f12", "%f13", "%f14", "%f15", "%f16", "%f17", "%f18", "%f19", "%f20", "%f21", "%f22", "%f23", "%f24", "%f25", "%f26", "%f27", "%f28", "%f29", "%f30", "%f31", "mq", "lr", "ctr", "ap", "%cr0", "%cr1", "%cr2", "%cr3", "%cr4", "%cr5", "%cr6", "%cr7", "xer", /* AltiVec registers. */ "%v0", "%v1", "%v2", "%v3", "%v4", "%v5", "%v6", "%v7", "%v8", "%v9", "%v10", "%v11", "%v12", "%v13", "%v14", "%v15", "%v16", "%v17", "%v18", "%v19", "%v20", "%v21", "%v22", "%v23", "%v24", "%v25", "%v26", "%v27", "%v28", "%v29", "%v30", "%v31", "vrsave", "vscr", /* SPE registers. */ "spe_acc", "spefscr", /* Soft frame pointer. */ "sfp" }; #endif /* Table of valid machine attributes. */ static const struct attribute_spec rs6000_attribute_table[] = { /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ { "altivec", 1, 1, false, true, false, rs6000_handle_altivec_attribute }, { "longcall", 0, 0, false, true, true, rs6000_handle_longcall_attribute }, { "shortcall", 0, 0, false, true, true, rs6000_handle_longcall_attribute }, { "ms_struct", 0, 0, false, false, false, rs6000_handle_struct_attribute }, { "gcc_struct", 0, 0, false, false, false, rs6000_handle_struct_attribute }, #ifdef SUBTARGET_ATTRIBUTE_TABLE SUBTARGET_ATTRIBUTE_TABLE, #endif { NULL, 0, 0, false, false, false, NULL } }; #ifndef MASK_STRICT_ALIGN #define MASK_STRICT_ALIGN 0 #endif #ifndef TARGET_PROFILE_KERNEL #define TARGET_PROFILE_KERNEL 0 #endif /* The VRSAVE bitmask puts bit %v0 as the most significant bit. */ #define ALTIVEC_REG_BIT(REGNO) (0x80000000 >> ((REGNO) - FIRST_ALTIVEC_REGNO)) /* Initialize the GCC target structure. */ #undef TARGET_ATTRIBUTE_TABLE #define TARGET_ATTRIBUTE_TABLE rs6000_attribute_table #undef TARGET_SET_DEFAULT_TYPE_ATTRIBUTES #define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES rs6000_set_default_type_attributes #undef TARGET_ASM_ALIGNED_DI_OP #define TARGET_ASM_ALIGNED_DI_OP DOUBLE_INT_ASM_OP /* Default unaligned ops are only provided for ELF. Find the ops needed for non-ELF systems. */ #ifndef OBJECT_FORMAT_ELF #if TARGET_XCOFF /* For XCOFF. rs6000_assemble_integer will handle unaligned DIs on 64-bit targets. */ #undef TARGET_ASM_UNALIGNED_HI_OP #define TARGET_ASM_UNALIGNED_HI_OP "\t.vbyte\t2," #undef TARGET_ASM_UNALIGNED_SI_OP #define TARGET_ASM_UNALIGNED_SI_OP "\t.vbyte\t4," #undef TARGET_ASM_UNALIGNED_DI_OP #define TARGET_ASM_UNALIGNED_DI_OP "\t.vbyte\t8," #else /* For Darwin. */ #undef TARGET_ASM_UNALIGNED_HI_OP #define TARGET_ASM_UNALIGNED_HI_OP "\t.short\t" #undef TARGET_ASM_UNALIGNED_SI_OP #define TARGET_ASM_UNALIGNED_SI_OP "\t.long\t" #undef TARGET_ASM_UNALIGNED_DI_OP #define TARGET_ASM_UNALIGNED_DI_OP "\t.quad\t" #undef TARGET_ASM_ALIGNED_DI_OP #define TARGET_ASM_ALIGNED_DI_OP "\t.quad\t" #endif #endif /* This hook deals with fixups for relocatable code and DI-mode objects in 64-bit code. */ #undef TARGET_ASM_INTEGER #define TARGET_ASM_INTEGER rs6000_assemble_integer #ifdef HAVE_GAS_HIDDEN #undef TARGET_ASM_ASSEMBLE_VISIBILITY #define TARGET_ASM_ASSEMBLE_VISIBILITY rs6000_assemble_visibility #endif #undef TARGET_HAVE_TLS #define TARGET_HAVE_TLS HAVE_AS_TLS #undef TARGET_CANNOT_FORCE_CONST_MEM #define TARGET_CANNOT_FORCE_CONST_MEM rs6000_tls_referenced_p #undef TARGET_DELEGITIMIZE_ADDRESS #define TARGET_DELEGITIMIZE_ADDRESS rs6000_delegitimize_address #undef TARGET_ASM_FUNCTION_PROLOGUE #define TARGET_ASM_FUNCTION_PROLOGUE rs6000_output_function_prologue #undef TARGET_ASM_FUNCTION_EPILOGUE #define TARGET_ASM_FUNCTION_EPILOGUE rs6000_output_function_epilogue #undef TARGET_LEGITIMIZE_ADDRESS #define TARGET_LEGITIMIZE_ADDRESS rs6000_legitimize_address #undef TARGET_SCHED_VARIABLE_ISSUE #define TARGET_SCHED_VARIABLE_ISSUE rs6000_variable_issue #undef TARGET_SCHED_ISSUE_RATE #define TARGET_SCHED_ISSUE_RATE rs6000_issue_rate #undef TARGET_SCHED_ADJUST_COST #define TARGET_SCHED_ADJUST_COST rs6000_adjust_cost #undef TARGET_SCHED_ADJUST_PRIORITY #define TARGET_SCHED_ADJUST_PRIORITY rs6000_adjust_priority #undef TARGET_SCHED_IS_COSTLY_DEPENDENCE #define TARGET_SCHED_IS_COSTLY_DEPENDENCE rs6000_is_costly_dependence #undef TARGET_SCHED_INIT #define TARGET_SCHED_INIT rs6000_sched_init #undef TARGET_SCHED_FINISH #define TARGET_SCHED_FINISH rs6000_sched_finish #undef TARGET_SCHED_REORDER #define TARGET_SCHED_REORDER rs6000_sched_reorder #undef TARGET_SCHED_REORDER2 #define TARGET_SCHED_REORDER2 rs6000_sched_reorder2 #undef TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD #define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD rs6000_use_sched_lookahead #undef TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD #define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD rs6000_use_sched_lookahead_guard #undef TARGET_SCHED_ALLOC_SCHED_CONTEXT #define TARGET_SCHED_ALLOC_SCHED_CONTEXT rs6000_alloc_sched_context #undef TARGET_SCHED_INIT_SCHED_CONTEXT #define TARGET_SCHED_INIT_SCHED_CONTEXT rs6000_init_sched_context #undef TARGET_SCHED_SET_SCHED_CONTEXT #define TARGET_SCHED_SET_SCHED_CONTEXT rs6000_set_sched_context #undef TARGET_SCHED_FREE_SCHED_CONTEXT #define TARGET_SCHED_FREE_SCHED_CONTEXT rs6000_free_sched_context #undef TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD #define TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD rs6000_builtin_mask_for_load #undef TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN #define TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN rs6000_builtin_mul_widen_even #undef TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD #define TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD rs6000_builtin_mul_widen_odd #undef TARGET_VECTORIZE_BUILTIN_CONVERSION #define TARGET_VECTORIZE_BUILTIN_CONVERSION rs6000_builtin_conversion #undef TARGET_VECTORIZE_BUILTIN_VEC_PERM #define TARGET_VECTORIZE_BUILTIN_VEC_PERM rs6000_builtin_vec_perm #undef TARGET_SUPPORT_VECTOR_MISALIGNMENT #define TARGET_SUPPORT_VECTOR_MISALIGNMENT \ rs6000_builtin_support_vector_misalignment #undef TARGET_VECTOR_ALIGNMENT_REACHABLE #define TARGET_VECTOR_ALIGNMENT_REACHABLE rs6000_vector_alignment_reachable #undef TARGET_INIT_BUILTINS #define TARGET_INIT_BUILTINS rs6000_init_builtins #undef TARGET_BUILTIN_DECL #define TARGET_BUILTIN_DECL rs6000_builtin_decl #undef TARGET_EXPAND_BUILTIN #define TARGET_EXPAND_BUILTIN rs6000_expand_builtin #undef TARGET_MANGLE_TYPE #define TARGET_MANGLE_TYPE rs6000_mangle_type #undef TARGET_INIT_LIBFUNCS #define TARGET_INIT_LIBFUNCS rs6000_init_libfuncs #if TARGET_MACHO #undef TARGET_BINDS_LOCAL_P #define TARGET_BINDS_LOCAL_P darwin_binds_local_p #endif #undef TARGET_MS_BITFIELD_LAYOUT_P #define TARGET_MS_BITFIELD_LAYOUT_P rs6000_ms_bitfield_layout_p #undef TARGET_ASM_OUTPUT_MI_THUNK #define TARGET_ASM_OUTPUT_MI_THUNK rs6000_output_mi_thunk #undef TARGET_ASM_CAN_OUTPUT_MI_THUNK #define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_const_tree_hwi_hwi_const_tree_true #undef TARGET_FUNCTION_OK_FOR_SIBCALL #define TARGET_FUNCTION_OK_FOR_SIBCALL rs6000_function_ok_for_sibcall #undef TARGET_INVALID_WITHIN_DOLOOP #define TARGET_INVALID_WITHIN_DOLOOP rs6000_invalid_within_doloop #undef TARGET_RTX_COSTS #define TARGET_RTX_COSTS rs6000_rtx_costs #undef TARGET_ADDRESS_COST #define TARGET_ADDRESS_COST hook_int_rtx_bool_0 #undef TARGET_DWARF_REGISTER_SPAN #define TARGET_DWARF_REGISTER_SPAN rs6000_dwarf_register_span #undef TARGET_INIT_DWARF_REG_SIZES_EXTRA #define TARGET_INIT_DWARF_REG_SIZES_EXTRA rs6000_init_dwarf_reg_sizes_extra /* On rs6000, function arguments are promoted, as are function return values. */ #undef TARGET_PROMOTE_FUNCTION_MODE #define TARGET_PROMOTE_FUNCTION_MODE default_promote_function_mode_always_promote #undef TARGET_RETURN_IN_MEMORY #define TARGET_RETURN_IN_MEMORY rs6000_return_in_memory #undef TARGET_SETUP_INCOMING_VARARGS #define TARGET_SETUP_INCOMING_VARARGS setup_incoming_varargs /* Always strict argument naming on rs6000. */ #undef TARGET_STRICT_ARGUMENT_NAMING #define TARGET_STRICT_ARGUMENT_NAMING hook_bool_CUMULATIVE_ARGS_true #undef TARGET_PRETEND_OUTGOING_VARARGS_NAMED #define TARGET_PRETEND_OUTGOING_VARARGS_NAMED hook_bool_CUMULATIVE_ARGS_true #undef TARGET_SPLIT_COMPLEX_ARG #define TARGET_SPLIT_COMPLEX_ARG hook_bool_const_tree_true #undef TARGET_MUST_PASS_IN_STACK #define TARGET_MUST_PASS_IN_STACK rs6000_must_pass_in_stack #undef TARGET_PASS_BY_REFERENCE #define TARGET_PASS_BY_REFERENCE rs6000_pass_by_reference #undef TARGET_ARG_PARTIAL_BYTES #define TARGET_ARG_PARTIAL_BYTES rs6000_arg_partial_bytes #undef TARGET_BUILD_BUILTIN_VA_LIST #define TARGET_BUILD_BUILTIN_VA_LIST rs6000_build_builtin_va_list #undef TARGET_EXPAND_BUILTIN_VA_START #define TARGET_EXPAND_BUILTIN_VA_START rs6000_va_start #undef TARGET_GIMPLIFY_VA_ARG_EXPR #define TARGET_GIMPLIFY_VA_ARG_EXPR rs6000_gimplify_va_arg #undef TARGET_EH_RETURN_FILTER_MODE #define TARGET_EH_RETURN_FILTER_MODE rs6000_eh_return_filter_mode #undef TARGET_SCALAR_MODE_SUPPORTED_P #define TARGET_SCALAR_MODE_SUPPORTED_P rs6000_scalar_mode_supported_p #undef TARGET_VECTOR_MODE_SUPPORTED_P #define TARGET_VECTOR_MODE_SUPPORTED_P rs6000_vector_mode_supported_p #undef TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN #define TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN invalid_arg_for_unprototyped_fn #undef TARGET_HANDLE_OPTION #define TARGET_HANDLE_OPTION rs6000_handle_option #undef TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION #define TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION \ rs6000_builtin_vectorized_function #undef TARGET_DEFAULT_TARGET_FLAGS #define TARGET_DEFAULT_TARGET_FLAGS \ (TARGET_DEFAULT) #undef TARGET_STACK_PROTECT_FAIL #define TARGET_STACK_PROTECT_FAIL rs6000_stack_protect_fail /* MPC604EUM 3.5.2 Weak Consistency between Multiple Processors The PowerPC architecture requires only weak consistency among processors--that is, memory accesses between processors need not be sequentially consistent and memory accesses among processors can occur in any order. The ability to order memory accesses weakly provides opportunities for more efficient use of the system bus. Unless a dependency exists, the 604e allows read operations to precede store operations. */ #undef TARGET_RELAXED_ORDERING #define TARGET_RELAXED_ORDERING true #ifdef HAVE_AS_TLS #undef TARGET_ASM_OUTPUT_DWARF_DTPREL #define TARGET_ASM_OUTPUT_DWARF_DTPREL rs6000_output_dwarf_dtprel #endif /* Use a 32-bit anchor range. This leads to sequences like: addis tmp,anchor,high add dest,tmp,low where tmp itself acts as an anchor, and can be shared between accesses to the same 64k page. */ #undef TARGET_MIN_ANCHOR_OFFSET #define TARGET_MIN_ANCHOR_OFFSET -0x7fffffff - 1 #undef TARGET_MAX_ANCHOR_OFFSET #define TARGET_MAX_ANCHOR_OFFSET 0x7fffffff #undef TARGET_USE_BLOCKS_FOR_CONSTANT_P #define TARGET_USE_BLOCKS_FOR_CONSTANT_P rs6000_use_blocks_for_constant_p #undef TARGET_BUILTIN_RECIPROCAL #define TARGET_BUILTIN_RECIPROCAL rs6000_builtin_reciprocal #undef TARGET_EXPAND_TO_RTL_HOOK #define TARGET_EXPAND_TO_RTL_HOOK rs6000_alloc_sdmode_stack_slot #undef TARGET_INSTANTIATE_DECLS #define TARGET_INSTANTIATE_DECLS rs6000_instantiate_decls #undef TARGET_SECONDARY_RELOAD #define TARGET_SECONDARY_RELOAD rs6000_secondary_reload #undef TARGET_IRA_COVER_CLASSES #define TARGET_IRA_COVER_CLASSES rs6000_ira_cover_classes #undef TARGET_LEGITIMATE_ADDRESS_P #define TARGET_LEGITIMATE_ADDRESS_P rs6000_legitimate_address_p #undef TARGET_CAN_ELIMINATE #define TARGET_CAN_ELIMINATE rs6000_can_eliminate #undef TARGET_TRAMPOLINE_INIT #define TARGET_TRAMPOLINE_INIT rs6000_trampoline_init #undef TARGET_FUNCTION_VALUE #define TARGET_FUNCTION_VALUE rs6000_function_value struct gcc_target targetm = TARGET_INITIALIZER; /* Return number of consecutive hard regs needed starting at reg REGNO to hold something of mode MODE. This is ordinarily the length in words of a value of mode MODE but can be less for certain modes in special long registers. For the SPE, GPRs are 64 bits but only 32 bits are visible in scalar instructions. The upper 32 bits are only available to the SIMD instructions. POWER and PowerPC GPRs hold 32 bits worth; PowerPC64 GPRs and FPRs point register holds 64 bits worth. */ static int rs6000_hard_regno_nregs_internal (int regno, enum machine_mode mode) { unsigned HOST_WIDE_INT reg_size; if (FP_REGNO_P (regno)) reg_size = (VECTOR_MEM_VSX_P (mode) ? UNITS_PER_VSX_WORD : UNITS_PER_FP_WORD); else if (SPE_SIMD_REGNO_P (regno) && TARGET_SPE && SPE_VECTOR_MODE (mode)) reg_size = UNITS_PER_SPE_WORD; else if (ALTIVEC_REGNO_P (regno)) reg_size = UNITS_PER_ALTIVEC_WORD; /* The value returned for SCmode in the E500 double case is 2 for ABI compatibility; storing an SCmode value in a single register would require function_arg and rs6000_spe_function_arg to handle SCmode so as to pass the value correctly in a pair of registers. */ else if (TARGET_E500_DOUBLE && FLOAT_MODE_P (mode) && mode != SCmode && !DECIMAL_FLOAT_MODE_P (mode)) reg_size = UNITS_PER_FP_WORD; else reg_size = UNITS_PER_WORD; return (GET_MODE_SIZE (mode) + reg_size - 1) / reg_size; } /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. */ static int rs6000_hard_regno_mode_ok (int regno, enum machine_mode mode) { int last_regno = regno + rs6000_hard_regno_nregs[mode][regno] - 1; /* VSX registers that overlap the FPR registers are larger than for non-VSX implementations. Don't allow an item to be split between a FP register and an Altivec register. */ if (VECTOR_MEM_VSX_P (mode)) { if (FP_REGNO_P (regno)) return FP_REGNO_P (last_regno); if (ALTIVEC_REGNO_P (regno)) return ALTIVEC_REGNO_P (last_regno); } /* The GPRs can hold any mode, but values bigger than one register cannot go past R31. */ if (INT_REGNO_P (regno)) return INT_REGNO_P (last_regno); /* The float registers (except for VSX vector modes) can only hold floating modes and DImode. This excludes the 32-bit decimal float mode for now. */ if (FP_REGNO_P (regno)) { if (SCALAR_FLOAT_MODE_P (mode) && (mode != TDmode || (regno % 2) == 0) && FP_REGNO_P (last_regno)) return 1; if (GET_MODE_CLASS (mode) == MODE_INT && GET_MODE_SIZE (mode) == UNITS_PER_FP_WORD) return 1; if (PAIRED_SIMD_REGNO_P (regno) && TARGET_PAIRED_FLOAT && PAIRED_VECTOR_MODE (mode)) return 1; return 0; } /* The CR register can only hold CC modes. */ if (CR_REGNO_P (regno)) return GET_MODE_CLASS (mode) == MODE_CC; if (XER_REGNO_P (regno)) return mode == PSImode; /* AltiVec only in AldyVec registers. */ if (ALTIVEC_REGNO_P (regno)) return VECTOR_MEM_ALTIVEC_OR_VSX_P (mode); /* ...but GPRs can hold SIMD data on the SPE in one register. */ if (SPE_SIMD_REGNO_P (regno) && TARGET_SPE && SPE_VECTOR_MODE (mode)) return 1; /* We cannot put TImode anywhere except general register and it must be able to fit within the register set. In the future, allow TImode in the Altivec or VSX registers. */ return GET_MODE_SIZE (mode) <= UNITS_PER_WORD; } /* Print interesting facts about registers. */ static void rs6000_debug_reg_print (int first_regno, int last_regno, const char *reg_name) { int r, m; for (r = first_regno; r <= last_regno; ++r) { const char *comma = ""; int len; if (first_regno == last_regno) fprintf (stderr, "%s:\t", reg_name); else fprintf (stderr, "%s%d:\t", reg_name, r - first_regno); len = 8; for (m = 0; m < NUM_MACHINE_MODES; ++m) if (rs6000_hard_regno_mode_ok_p[m][r] && rs6000_hard_regno_nregs[m][r]) { if (len > 70) { fprintf (stderr, ",\n\t"); len = 8; comma = ""; } if (rs6000_hard_regno_nregs[m][r] > 1) len += fprintf (stderr, "%s%s/%d", comma, GET_MODE_NAME (m), rs6000_hard_regno_nregs[m][r]); else len += fprintf (stderr, "%s%s", comma, GET_MODE_NAME (m)); comma = ", "; } if (call_used_regs[r]) { if (len > 70) { fprintf (stderr, ",\n\t"); len = 8; comma = ""; } len += fprintf (stderr, "%s%s", comma, "call-used"); comma = ", "; } if (fixed_regs[r]) { if (len > 70) { fprintf (stderr, ",\n\t"); len = 8; comma = ""; } len += fprintf (stderr, "%s%s", comma, "fixed"); comma = ", "; } if (len > 70) { fprintf (stderr, ",\n\t"); comma = ""; } fprintf (stderr, "%sregno = %d\n", comma, r); } } /* Print various interesting information with -mdebug=reg. */ static void rs6000_debug_reg_global (void) { const char *nl = (const char *)0; int m; char costly_num[20]; char nop_num[20]; const char *costly_str; const char *nop_str; /* Map enum rs6000_vector to string. */ static const char *rs6000_debug_vector_unit[] = { "none", "altivec", "vsx", "paired", "spe", "other" }; fprintf (stderr, "Register information: (last virtual reg = %d)\n", LAST_VIRTUAL_REGISTER); rs6000_debug_reg_print (0, 31, "gr"); rs6000_debug_reg_print (32, 63, "fp"); rs6000_debug_reg_print (FIRST_ALTIVEC_REGNO, LAST_ALTIVEC_REGNO, "vs"); rs6000_debug_reg_print (LR_REGNO, LR_REGNO, "lr"); rs6000_debug_reg_print (CTR_REGNO, CTR_REGNO, "ctr"); rs6000_debug_reg_print (CR0_REGNO, CR7_REGNO, "cr"); rs6000_debug_reg_print (MQ_REGNO, MQ_REGNO, "mq"); rs6000_debug_reg_print (XER_REGNO, XER_REGNO, "xer"); rs6000_debug_reg_print (VRSAVE_REGNO, VRSAVE_REGNO, "vrsave"); rs6000_debug_reg_print (VSCR_REGNO, VSCR_REGNO, "vscr"); rs6000_debug_reg_print (SPE_ACC_REGNO, SPE_ACC_REGNO, "spe_a"); rs6000_debug_reg_print (SPEFSCR_REGNO, SPEFSCR_REGNO, "spe_f"); fprintf (stderr, "\n" "d reg_class = %s\n" "f reg_class = %s\n" "v reg_class = %s\n" "wa reg_class = %s\n" "wd reg_class = %s\n" "wf reg_class = %s\n" "ws reg_class = %s\n\n", reg_class_names[rs6000_constraints[RS6000_CONSTRAINT_d]], reg_class_names[rs6000_constraints[RS6000_CONSTRAINT_f]], reg_class_names[rs6000_constraints[RS6000_CONSTRAINT_v]], reg_class_names[rs6000_constraints[RS6000_CONSTRAINT_wa]], reg_class_names[rs6000_constraints[RS6000_CONSTRAINT_wd]], reg_class_names[rs6000_constraints[RS6000_CONSTRAINT_wf]], reg_class_names[rs6000_constraints[RS6000_CONSTRAINT_ws]]); for (m = 0; m < NUM_MACHINE_MODES; ++m) if (rs6000_vector_unit[m] || rs6000_vector_mem[m]) { nl = "\n"; fprintf (stderr, "Vector mode: %-5s arithmetic: %-8s move: %-8s\n", GET_MODE_NAME (m), rs6000_debug_vector_unit[ rs6000_vector_unit[m] ], rs6000_debug_vector_unit[ rs6000_vector_mem[m] ]); } if (nl) fputs (nl, stderr); switch (rs6000_sched_costly_dep) { case max_dep_latency: costly_str = "max_dep_latency"; break; case no_dep_costly: costly_str = "no_dep_costly"; break; case all_deps_costly: costly_str = "all_deps_costly"; break; case true_store_to_load_dep_costly: costly_str = "true_store_to_load_dep_costly"; break; case store_to_load_dep_costly: costly_str = "store_to_load_dep_costly"; break; default: costly_str = costly_num; sprintf (costly_num, "%d", (int)rs6000_sched_costly_dep); break; } switch (rs6000_sched_insert_nops) { case sched_finish_regroup_exact: nop_str = "sched_finish_regroup_exact"; break; case sched_finish_pad_groups: nop_str = "sched_finish_pad_groups"; break; case sched_finish_none: nop_str = "sched_finish_none"; break; default: nop_str = nop_num; sprintf (nop_num, "%d", (int)rs6000_sched_insert_nops); break; } fprintf (stderr, "always_hint = %s\n" "align_branch_targets = %s\n" "sched_restricted_insns_priority = %d\n" "sched_costly_dep = %s\n" "sched_insert_nops = %s\n\n", rs6000_always_hint ? "true" : "false", rs6000_align_branch_targets ? "true" : "false", (int)rs6000_sched_restricted_insns_priority, costly_str, nop_str); } /* Initialize the various global tables that are based on register size. */ static void rs6000_init_hard_regno_mode_ok (void) { int r, m, c; int align64; int align32; /* Precalculate REGNO_REG_CLASS. */ rs6000_regno_regclass[0] = GENERAL_REGS; for (r = 1; r < 32; ++r) rs6000_regno_regclass[r] = BASE_REGS; for (r = 32; r < 64; ++r) rs6000_regno_regclass[r] = FLOAT_REGS; for (r = 64; r < FIRST_PSEUDO_REGISTER; ++r) rs6000_regno_regclass[r] = NO_REGS; for (r = FIRST_ALTIVEC_REGNO; r <= LAST_ALTIVEC_REGNO; ++r) rs6000_regno_regclass[r] = ALTIVEC_REGS; rs6000_regno_regclass[CR0_REGNO] = CR0_REGS; for (r = CR1_REGNO; r <= CR7_REGNO; ++r) rs6000_regno_regclass[r] = CR_REGS; rs6000_regno_regclass[MQ_REGNO] = MQ_REGS; rs6000_regno_regclass[LR_REGNO] = LINK_REGS; rs6000_regno_regclass[CTR_REGNO] = CTR_REGS; rs6000_regno_regclass[XER_REGNO] = XER_REGS; rs6000_regno_regclass[VRSAVE_REGNO] = VRSAVE_REGS; rs6000_regno_regclass[VSCR_REGNO] = VRSAVE_REGS; rs6000_regno_regclass[SPE_ACC_REGNO] = SPE_ACC_REGS; rs6000_regno_regclass[SPEFSCR_REGNO] = SPEFSCR_REGS; rs6000_regno_regclass[ARG_POINTER_REGNUM] = BASE_REGS; rs6000_regno_regclass[FRAME_POINTER_REGNUM] = BASE_REGS; /* Precalculate vector information, this must be set up before the rs6000_hard_regno_nregs_internal below. */ for (m = 0; m < NUM_MACHINE_MODES; ++m) { rs6000_vector_unit[m] = rs6000_vector_mem[m] = VECTOR_NONE; rs6000_vector_reload[m][0] = CODE_FOR_nothing; rs6000_vector_reload[m][1] = CODE_FOR_nothing; } for (c = 0; c < (int)(int)RS6000_CONSTRAINT_MAX; c++) rs6000_constraints[c] = NO_REGS; /* The VSX hardware allows native alignment for vectors, but control whether the compiler believes it can use native alignment or still uses 128-bit alignment. */ if (TARGET_VSX && !TARGET_VSX_ALIGN_128) { align64 = 64; align32 = 32; } else { align64 = 128; align32 = 128; } /* V2DF mode, VSX only. */ if (TARGET_VSX) { rs6000_vector_unit[V2DFmode] = VECTOR_VSX; rs6000_vector_mem[V2DFmode] = VECTOR_VSX; rs6000_vector_align[V2DFmode] = align64; } /* V4SF mode, either VSX or Altivec. */ if (TARGET_VSX) { rs6000_vector_unit[V4SFmode] = VECTOR_VSX; rs6000_vector_mem[V4SFmode] = VECTOR_VSX; rs6000_vector_align[V4SFmode] = align32; } else if (TARGET_ALTIVEC) { rs6000_vector_unit[V4SFmode] = VECTOR_ALTIVEC; rs6000_vector_mem[V4SFmode] = VECTOR_ALTIVEC; rs6000_vector_align[V4SFmode] = align32; } /* V16QImode, V8HImode, V4SImode are Altivec only, but possibly do VSX loads and stores. */ if (TARGET_ALTIVEC) { rs6000_vector_unit[V4SImode] = VECTOR_ALTIVEC; rs6000_vector_unit[V8HImode] = VECTOR_ALTIVEC; rs6000_vector_unit[V16QImode] = VECTOR_ALTIVEC; rs6000_vector_align[V4SImode] = align32; rs6000_vector_align[V8HImode] = align32; rs6000_vector_align[V16QImode] = align32; if (TARGET_VSX) { rs6000_vector_mem[V4SImode] = VECTOR_VSX; rs6000_vector_mem[V8HImode] = VECTOR_VSX; rs6000_vector_mem[V16QImode] = VECTOR_VSX; } else { rs6000_vector_mem[V4SImode] = VECTOR_ALTIVEC; rs6000_vector_mem[V8HImode] = VECTOR_ALTIVEC; rs6000_vector_mem[V16QImode] = VECTOR_ALTIVEC; } } /* V2DImode, only allow under VSX, which can do V2DI insert/splat/extract. Altivec doesn't have 64-bit support. */ if (TARGET_VSX) { rs6000_vector_mem[V2DImode] = VECTOR_VSX; rs6000_vector_unit[V2DImode] = VECTOR_NONE; rs6000_vector_align[V2DImode] = align64; } /* DFmode, see if we want to use the VSX unit. */ if (TARGET_VSX && TARGET_VSX_SCALAR_DOUBLE) { rs6000_vector_unit[DFmode] = VECTOR_VSX; rs6000_vector_mem[DFmode] = (TARGET_VSX_SCALAR_MEMORY ? VECTOR_VSX : VECTOR_NONE); rs6000_vector_align[DFmode] = align64; } /* TODO add SPE and paired floating point vector support. */ /* Register class constaints for the constraints that depend on compile switches. */ if (TARGET_HARD_FLOAT && TARGET_FPRS) rs6000_constraints[RS6000_CONSTRAINT_f] = FLOAT_REGS; if (TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT) rs6000_constraints[RS6000_CONSTRAINT_d] = FLOAT_REGS; if (TARGET_VSX) { /* At present, we just use VSX_REGS, but we have different constraints based on the use, in case we want to fine tune the default register class used. wa = any VSX register, wf = register class to use for V4SF, wd = register class to use for V2DF, and ws = register classs to use for DF scalars. */ rs6000_constraints[RS6000_CONSTRAINT_wa] = VSX_REGS; rs6000_constraints[RS6000_CONSTRAINT_wf] = VSX_REGS; rs6000_constraints[RS6000_CONSTRAINT_wd] = VSX_REGS; if (TARGET_VSX_SCALAR_DOUBLE) rs6000_constraints[RS6000_CONSTRAINT_ws] = VSX_REGS; } if (TARGET_ALTIVEC) rs6000_constraints[RS6000_CONSTRAINT_v] = ALTIVEC_REGS; /* Set up the reload helper functions. */ if (TARGET_VSX || TARGET_ALTIVEC) { if (TARGET_64BIT) { rs6000_vector_reload[V16QImode][0] = CODE_FOR_reload_v16qi_di_store; rs6000_vector_reload[V16QImode][1] = CODE_FOR_reload_v16qi_di_load; rs6000_vector_reload[V8HImode][0] = CODE_FOR_reload_v8hi_di_store; rs6000_vector_reload[V8HImode][1] = CODE_FOR_reload_v8hi_di_load; rs6000_vector_reload[V4SImode][0] = CODE_FOR_reload_v4si_di_store; rs6000_vector_reload[V4SImode][1] = CODE_FOR_reload_v4si_di_load; rs6000_vector_reload[V2DImode][0] = CODE_FOR_reload_v2di_di_store; rs6000_vector_reload[V2DImode][1] = CODE_FOR_reload_v2di_di_load; rs6000_vector_reload[V4SFmode][0] = CODE_FOR_reload_v4sf_di_store; rs6000_vector_reload[V4SFmode][1] = CODE_FOR_reload_v4sf_di_load; rs6000_vector_reload[V2DFmode][0] = CODE_FOR_reload_v2df_di_store; rs6000_vector_reload[V2DFmode][1] = CODE_FOR_reload_v2df_di_load; } else { rs6000_vector_reload[V16QImode][0] = CODE_FOR_reload_v16qi_si_store; rs6000_vector_reload[V16QImode][1] = CODE_FOR_reload_v16qi_si_load; rs6000_vector_reload[V8HImode][0] = CODE_FOR_reload_v8hi_si_store; rs6000_vector_reload[V8HImode][1] = CODE_FOR_reload_v8hi_si_load; rs6000_vector_reload[V4SImode][0] = CODE_FOR_reload_v4si_si_store; rs6000_vector_reload[V4SImode][1] = CODE_FOR_reload_v4si_si_load; rs6000_vector_reload[V2DImode][0] = CODE_FOR_reload_v2di_si_store; rs6000_vector_reload[V2DImode][1] = CODE_FOR_reload_v2di_si_load; rs6000_vector_reload[V4SFmode][0] = CODE_FOR_reload_v4sf_si_store; rs6000_vector_reload[V4SFmode][1] = CODE_FOR_reload_v4sf_si_load; rs6000_vector_reload[V2DFmode][0] = CODE_FOR_reload_v2df_si_store; rs6000_vector_reload[V2DFmode][1] = CODE_FOR_reload_v2df_si_load; } } /* Precalculate HARD_REGNO_NREGS. */ for (r = 0; r < FIRST_PSEUDO_REGISTER; ++r) for (m = 0; m < NUM_MACHINE_MODES; ++m) rs6000_hard_regno_nregs[m][r] = rs6000_hard_regno_nregs_internal (r, (enum machine_mode)m); /* Precalculate HARD_REGNO_MODE_OK. */ for (r = 0; r < FIRST_PSEUDO_REGISTER; ++r) for (m = 0; m < NUM_MACHINE_MODES; ++m) if (rs6000_hard_regno_mode_ok (r, (enum machine_mode)m)) rs6000_hard_regno_mode_ok_p[m][r] = true; /* Precalculate CLASS_MAX_NREGS sizes. */ for (c = 0; c < LIM_REG_CLASSES; ++c) { int reg_size; if (TARGET_VSX && VSX_REG_CLASS_P (c)) reg_size = UNITS_PER_VSX_WORD; else if (c == ALTIVEC_REGS) reg_size = UNITS_PER_ALTIVEC_WORD; else if (c == FLOAT_REGS) reg_size = UNITS_PER_FP_WORD; else reg_size = UNITS_PER_WORD; for (m = 0; m < NUM_MACHINE_MODES; ++m) rs6000_class_max_nregs[m][c] = (GET_MODE_SIZE (m) + reg_size - 1) / reg_size; } if (TARGET_E500_DOUBLE) rs6000_class_max_nregs[DFmode][GENERAL_REGS] = 1; if (TARGET_DEBUG_REG) rs6000_debug_reg_global (); } #if TARGET_MACHO /* The Darwin version of SUBTARGET_OVERRIDE_OPTIONS. */ static void darwin_rs6000_override_options (void) { /* The Darwin ABI always includes AltiVec, can't be (validly) turned off. */ rs6000_altivec_abi = 1; TARGET_ALTIVEC_VRSAVE = 1; if (DEFAULT_ABI == ABI_DARWIN) { if (MACHO_DYNAMIC_NO_PIC_P) { if (flag_pic) warning (0, "-mdynamic-no-pic overrides -fpic or -fPIC"); flag_pic = 0; } else if (flag_pic == 1) { flag_pic = 2; } } if (TARGET_64BIT && ! TARGET_POWERPC64) { target_flags |= MASK_POWERPC64; warning (0, "-m64 requires PowerPC64 architecture, enabling"); } if (flag_mkernel) { rs6000_default_long_calls = 1; target_flags |= MASK_SOFT_FLOAT; } /* Make -m64 imply -maltivec. Darwin's 64-bit ABI includes Altivec. */ if (!flag_mkernel && !flag_apple_kext && TARGET_64BIT && ! (target_flags_explicit & MASK_ALTIVEC)) target_flags |= MASK_ALTIVEC; /* Unless the user (not the configurer) has explicitly overridden it with -mcpu=G3 or -mno-altivec, then 10.5+ targets default to G4 unless targetting the kernel. */ if (!flag_mkernel && !flag_apple_kext && strverscmp (darwin_macosx_version_min, "10.5") >= 0 && ! (target_flags_explicit & MASK_ALTIVEC) && ! rs6000_select[1].string) { target_flags |= MASK_ALTIVEC; } } #endif /* If not otherwise specified by a target, make 'long double' equivalent to 'double'. */ #ifndef RS6000_DEFAULT_LONG_DOUBLE_SIZE #define RS6000_DEFAULT_LONG_DOUBLE_SIZE 64 #endif /* Override command line options. Mostly we process the processor type and sometimes adjust other TARGET_ options. */ void rs6000_override_options (const char *default_cpu) { size_t i, j; struct rs6000_cpu_select *ptr; int set_masks; /* Simplifications for entries below. */ enum { POWERPC_BASE_MASK = MASK_POWERPC | MASK_NEW_MNEMONICS, POWERPC_7400_MASK = POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_ALTIVEC }; /* This table occasionally claims that a processor does not support a particular feature even though it does, but the feature is slower than the alternative. Thus, it shouldn't be relied on as a complete description of the processor's support. Please keep this list in order, and don't forget to update the documentation in invoke.texi when adding a new processor or flag. */ static struct ptt { const char *const name; /* Canonical processor name. */ const enum processor_type processor; /* Processor type enum value. */ const int target_enable; /* Target flags to enable. */ } const processor_target_table[] = {{"401", PROCESSOR_PPC403, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"403", PROCESSOR_PPC403, POWERPC_BASE_MASK | MASK_SOFT_FLOAT | MASK_STRICT_ALIGN}, {"405", PROCESSOR_PPC405, POWERPC_BASE_MASK | MASK_SOFT_FLOAT | MASK_MULHW | MASK_DLMZB}, {"405fp", PROCESSOR_PPC405, POWERPC_BASE_MASK | MASK_MULHW | MASK_DLMZB}, {"440", PROCESSOR_PPC440, POWERPC_BASE_MASK | MASK_SOFT_FLOAT | MASK_MULHW | MASK_DLMZB}, {"440fp", PROCESSOR_PPC440, POWERPC_BASE_MASK | MASK_MULHW | MASK_DLMZB}, {"464", PROCESSOR_PPC440, POWERPC_BASE_MASK | MASK_SOFT_FLOAT | MASK_MULHW | MASK_DLMZB}, {"464fp", PROCESSOR_PPC440, POWERPC_BASE_MASK | MASK_MULHW | MASK_DLMZB}, {"476", PROCESSOR_PPC476, POWERPC_BASE_MASK | MASK_SOFT_FLOAT | MASK_PPC_GFXOPT | MASK_MFCRF | MASK_POPCNTB | MASK_FPRND | MASK_CMPB | MASK_MULHW | MASK_DLMZB}, {"476fp", PROCESSOR_PPC476, POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_MFCRF | MASK_POPCNTB | MASK_FPRND | MASK_CMPB | MASK_MULHW | MASK_DLMZB}, {"505", PROCESSOR_MPCCORE, POWERPC_BASE_MASK}, {"601", PROCESSOR_PPC601, MASK_POWER | POWERPC_BASE_MASK | MASK_MULTIPLE | MASK_STRING}, {"602", PROCESSOR_PPC603, POWERPC_BASE_MASK | MASK_PPC_GFXOPT}, {"603", PROCESSOR_PPC603, POWERPC_BASE_MASK | MASK_PPC_GFXOPT}, {"603e", PROCESSOR_PPC603, POWERPC_BASE_MASK | MASK_PPC_GFXOPT}, {"604", PROCESSOR_PPC604, POWERPC_BASE_MASK | MASK_PPC_GFXOPT}, {"604e", PROCESSOR_PPC604e, POWERPC_BASE_MASK | MASK_PPC_GFXOPT}, {"620", PROCESSOR_PPC620, POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_POWERPC64}, {"630", PROCESSOR_PPC630, POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_POWERPC64}, {"740", PROCESSOR_PPC750, POWERPC_BASE_MASK | MASK_PPC_GFXOPT}, {"7400", PROCESSOR_PPC7400, POWERPC_7400_MASK}, {"7450", PROCESSOR_PPC7450, POWERPC_7400_MASK}, {"750", PROCESSOR_PPC750, POWERPC_BASE_MASK | MASK_PPC_GFXOPT}, {"801", PROCESSOR_MPCCORE, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"821", PROCESSOR_MPCCORE, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"823", PROCESSOR_MPCCORE, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"8540", PROCESSOR_PPC8540, POWERPC_BASE_MASK | MASK_STRICT_ALIGN | MASK_ISEL}, /* 8548 has a dummy entry for now. */ {"8548", PROCESSOR_PPC8540, POWERPC_BASE_MASK | MASK_STRICT_ALIGN | MASK_ISEL}, {"a2", PROCESSOR_PPCA2, POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_POWERPC64 | MASK_POPCNTB | MASK_CMPB | MASK_NO_UPDATE }, {"e300c2", PROCESSOR_PPCE300C2, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"e300c3", PROCESSOR_PPCE300C3, POWERPC_BASE_MASK}, {"e500mc", PROCESSOR_PPCE500MC, POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_ISEL}, {"e500mc64", PROCESSOR_PPCE500MC64, POWERPC_BASE_MASK | MASK_POWERPC64 | MASK_PPC_GFXOPT | MASK_ISEL}, {"860", PROCESSOR_MPCCORE, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"970", PROCESSOR_POWER4, POWERPC_7400_MASK | MASK_PPC_GPOPT | MASK_MFCRF | MASK_POWERPC64}, {"cell", PROCESSOR_CELL, POWERPC_7400_MASK | MASK_PPC_GPOPT | MASK_MFCRF | MASK_POWERPC64}, {"common", PROCESSOR_COMMON, MASK_NEW_MNEMONICS}, {"ec603e", PROCESSOR_PPC603, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"G3", PROCESSOR_PPC750, POWERPC_BASE_MASK | MASK_PPC_GFXOPT}, {"G4", PROCESSOR_PPC7450, POWERPC_7400_MASK}, {"G5", PROCESSOR_POWER4, POWERPC_7400_MASK | MASK_PPC_GPOPT | MASK_MFCRF | MASK_POWERPC64}, {"power", PROCESSOR_POWER, MASK_POWER | MASK_MULTIPLE | MASK_STRING}, {"power2", PROCESSOR_POWER, MASK_POWER | MASK_POWER2 | MASK_MULTIPLE | MASK_STRING}, {"power3", PROCESSOR_PPC630, POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_POWERPC64}, {"power4", PROCESSOR_POWER4, POWERPC_BASE_MASK | MASK_POWERPC64 | MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF}, {"power5", PROCESSOR_POWER5, POWERPC_BASE_MASK | MASK_POWERPC64 | MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF | MASK_POPCNTB}, {"power5+", PROCESSOR_POWER5, POWERPC_BASE_MASK | MASK_POWERPC64 | MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF | MASK_POPCNTB | MASK_FPRND}, {"power6", PROCESSOR_POWER6, POWERPC_BASE_MASK | MASK_POWERPC64 | MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF | MASK_POPCNTB | MASK_FPRND | MASK_CMPB | MASK_DFP}, {"power6x", PROCESSOR_POWER6, POWERPC_BASE_MASK | MASK_POWERPC64 | MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF | MASK_POPCNTB | MASK_FPRND | MASK_CMPB | MASK_DFP | MASK_MFPGPR}, {"power7", PROCESSOR_POWER7, POWERPC_7400_MASK | MASK_POWERPC64 | MASK_PPC_GPOPT | MASK_MFCRF | MASK_POPCNTB | MASK_FPRND | MASK_CMPB | MASK_DFP | MASK_POPCNTD | MASK_VSX}, /* Don't add MASK_ISEL by default */ {"powerpc", PROCESSOR_POWERPC, POWERPC_BASE_MASK}, {"powerpc64", PROCESSOR_POWERPC64, POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_POWERPC64}, {"rios", PROCESSOR_RIOS1, MASK_POWER | MASK_MULTIPLE | MASK_STRING}, {"rios1", PROCESSOR_RIOS1, MASK_POWER | MASK_MULTIPLE | MASK_STRING}, {"rios2", PROCESSOR_RIOS2, MASK_POWER | MASK_POWER2 | MASK_MULTIPLE | MASK_STRING}, {"rsc", PROCESSOR_PPC601, MASK_POWER | MASK_MULTIPLE | MASK_STRING}, {"rsc1", PROCESSOR_PPC601, MASK_POWER | MASK_MULTIPLE | MASK_STRING}, {"rs64", PROCESSOR_RS64A, POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_POWERPC64} }; const size_t ptt_size = ARRAY_SIZE (processor_target_table); /* Some OSs don't support saving the high part of 64-bit registers on context switch. Other OSs don't support saving Altivec registers. On those OSs, we don't touch the MASK_POWERPC64 or MASK_ALTIVEC settings; if the user wants either, the user must explicitly specify them and we won't interfere with the user's specification. */ enum { POWER_MASKS = MASK_POWER | MASK_POWER2 | MASK_MULTIPLE | MASK_STRING, POWERPC_MASKS = (POWERPC_BASE_MASK | MASK_PPC_GPOPT | MASK_STRICT_ALIGN | MASK_PPC_GFXOPT | MASK_POWERPC64 | MASK_ALTIVEC | MASK_MFCRF | MASK_POPCNTB | MASK_FPRND | MASK_MULHW | MASK_DLMZB | MASK_CMPB | MASK_MFPGPR | MASK_DFP | MASK_POPCNTD | MASK_VSX | MASK_ISEL | MASK_NO_UPDATE) }; /* Numerous experiment shows that IRA based loop pressure calculation works better for RTL loop invariant motion on targets with enough (>= 32) registers. It is an expensive optimization. So it is on only for peak performance. */ if (optimize >= 3) flag_ira_loop_pressure = 1; /* Set the pointer size. */ if (TARGET_64BIT) { rs6000_pmode = (int)DImode; rs6000_pointer_size = 64; } else { rs6000_pmode = (int)SImode; rs6000_pointer_size = 32; } set_masks = POWER_MASKS | POWERPC_MASKS | MASK_SOFT_FLOAT; #ifdef OS_MISSING_POWERPC64 if (OS_MISSING_POWERPC64) set_masks &= ~MASK_POWERPC64; #endif #ifdef OS_MISSING_ALTIVEC if (OS_MISSING_ALTIVEC) set_masks &= ~MASK_ALTIVEC; #endif /* Don't override by the processor default if given explicitly. */ set_masks &= ~target_flags_explicit; /* Identify the processor type. */ rs6000_select[0].string = default_cpu; rs6000_cpu = TARGET_POWERPC64 ? PROCESSOR_DEFAULT64 : PROCESSOR_DEFAULT; for (i = 0; i < ARRAY_SIZE (rs6000_select); i++) { ptr = &rs6000_select[i]; if (ptr->string != (char *)0 && ptr->string[0] != '\0') { for (j = 0; j < ptt_size; j++) if (! strcmp (ptr->string, processor_target_table[j].name)) { if (ptr->set_tune_p) rs6000_cpu = processor_target_table[j].processor; if (ptr->set_arch_p) { target_flags &= ~set_masks; target_flags |= (processor_target_table[j].target_enable & set_masks); } break; } if (j == ptt_size) error ("bad value (%s) for %s switch", ptr->string, ptr->name); } } if (rs6000_cpu == PROCESSOR_PPCE300C2 || rs6000_cpu == PROCESSOR_PPCE300C3 || rs6000_cpu == PROCESSOR_PPCE500MC || rs6000_cpu == PROCESSOR_PPCE500MC64) { if (TARGET_ALTIVEC) error ("AltiVec not supported in this target"); if (TARGET_SPE) error ("Spe not supported in this target"); } /* Disable Cell microcode if we are optimizing for the Cell and not optimizing for size. */ if (rs6000_gen_cell_microcode == -1) rs6000_gen_cell_microcode = !(rs6000_cpu == PROCESSOR_CELL && !optimize_size); /* If we are optimizing big endian systems for space and it's OK to use instructions that would be microcoded on the Cell, use the load/store multiple and string instructions. */ if (BYTES_BIG_ENDIAN && optimize_size && rs6000_gen_cell_microcode) target_flags |= ~target_flags_explicit & (MASK_MULTIPLE | MASK_STRING); /* Don't allow -mmultiple or -mstring on little endian systems unless the cpu is a 750, because the hardware doesn't support the instructions used in little endian mode, and causes an alignment trap. The 750 does not cause an alignment trap (except when the target is unaligned). */ if (!BYTES_BIG_ENDIAN && rs6000_cpu != PROCESSOR_PPC750) { if (TARGET_MULTIPLE) { target_flags &= ~MASK_MULTIPLE; if ((target_flags_explicit & MASK_MULTIPLE) != 0) warning (0, "-mmultiple is not supported on little endian systems"); } if (TARGET_STRING) { target_flags &= ~MASK_STRING; if ((target_flags_explicit & MASK_STRING) != 0) warning (0, "-mstring is not supported on little endian systems"); } } /* Add some warnings for VSX. */ if (TARGET_VSX) { const char *msg = NULL; if (!TARGET_HARD_FLOAT || !TARGET_FPRS || !TARGET_SINGLE_FLOAT || !TARGET_DOUBLE_FLOAT) { if (target_flags_explicit & MASK_VSX) msg = N_("-mvsx requires hardware floating point"); else target_flags &= ~ MASK_VSX; } else if (TARGET_PAIRED_FLOAT) msg = N_("-mvsx and -mpaired are incompatible"); /* The hardware will allow VSX and little endian, but until we make sure things like vector select, etc. work don't allow VSX on little endian systems at this point. */ else if (!BYTES_BIG_ENDIAN) msg = N_("-mvsx used with little endian code"); else if (TARGET_AVOID_XFORM > 0) msg = N_("-mvsx needs indexed addressing"); else if (!TARGET_ALTIVEC && (target_flags_explicit & MASK_ALTIVEC)) { if (target_flags_explicit & MASK_VSX) msg = N_("-mvsx and -mno-altivec are incompatible"); else msg = N_("-mno-altivec disables vsx"); } if (msg) { warning (0, msg); target_flags &= ~ MASK_VSX; } else if (TARGET_VSX && !TARGET_ALTIVEC) target_flags |= MASK_ALTIVEC; } /* Set debug flags */ if (rs6000_debug_name) { if (! strcmp (rs6000_debug_name, "all")) rs6000_debug_stack = rs6000_debug_arg = rs6000_debug_reg = rs6000_debug_addr = rs6000_debug_cost = 1; else if (! strcmp (rs6000_debug_name, "stack")) rs6000_debug_stack = 1; else if (! strcmp (rs6000_debug_name, "arg")) rs6000_debug_arg = 1; else if (! strcmp (rs6000_debug_name, "reg")) rs6000_debug_reg = 1; else if (! strcmp (rs6000_debug_name, "addr")) rs6000_debug_addr = 1; else if (! strcmp (rs6000_debug_name, "cost")) rs6000_debug_cost = 1; else error ("unknown -mdebug-%s switch", rs6000_debug_name); /* If the appropriate debug option is enabled, replace the target hooks with debug versions that call the real version and then prints debugging information. */ if (TARGET_DEBUG_COST) { targetm.rtx_costs = rs6000_debug_rtx_costs; targetm.address_cost = rs6000_debug_address_cost; targetm.sched.adjust_cost = rs6000_debug_adjust_cost; } if (TARGET_DEBUG_ADDR) { targetm.legitimate_address_p = rs6000_debug_legitimate_address_p; targetm.legitimize_address = rs6000_debug_legitimize_address; rs6000_secondary_reload_class_ptr = rs6000_debug_secondary_reload_class; rs6000_secondary_memory_needed_ptr = rs6000_debug_secondary_memory_needed; rs6000_cannot_change_mode_class_ptr = rs6000_debug_cannot_change_mode_class; rs6000_preferred_reload_class_ptr = rs6000_debug_preferred_reload_class; rs6000_legitimize_reload_address_ptr = rs6000_debug_legitimize_reload_address; rs6000_mode_dependent_address_ptr = rs6000_debug_mode_dependent_address; } } if (rs6000_traceback_name) { if (! strncmp (rs6000_traceback_name, "full", 4)) rs6000_traceback = traceback_full; else if (! strncmp (rs6000_traceback_name, "part", 4)) rs6000_traceback = traceback_part; else if (! strncmp (rs6000_traceback_name, "no", 2)) rs6000_traceback = traceback_none; else error ("unknown -mtraceback arg %qs; expecting %<full%>, %<partial%> or %<none%>", rs6000_traceback_name); } if (!rs6000_explicit_options.long_double) rs6000_long_double_type_size = RS6000_DEFAULT_LONG_DOUBLE_SIZE; #ifndef POWERPC_LINUX if (!rs6000_explicit_options.ieee) rs6000_ieeequad = 1; #endif /* Enable Altivec ABI for AIX -maltivec. */ if (TARGET_XCOFF && (TARGET_ALTIVEC || TARGET_VSX)) rs6000_altivec_abi = 1; /* The AltiVec ABI is the default for PowerPC-64 GNU/Linux. For PowerPC-32 GNU/Linux, -maltivec implies the AltiVec ABI. It can be explicitly overridden in either case. */ if (TARGET_ELF) { if (!rs6000_explicit_options.altivec_abi && (TARGET_64BIT || TARGET_ALTIVEC || TARGET_VSX)) rs6000_altivec_abi = 1; /* Enable VRSAVE for AltiVec ABI, unless explicitly overridden. */ if (!rs6000_explicit_options.vrsave) TARGET_ALTIVEC_VRSAVE = rs6000_altivec_abi; } /* Set the Darwin64 ABI as default for 64-bit Darwin. */ if (DEFAULT_ABI == ABI_DARWIN && TARGET_64BIT) { rs6000_darwin64_abi = 1; #if TARGET_MACHO darwin_one_byte_bool = 1; #endif /* Default to natural alignment, for better performance. */ rs6000_alignment_flags = MASK_ALIGN_NATURAL; } /* Place FP constants in the constant pool instead of TOC if section anchors enabled. */ if (flag_section_anchors) TARGET_NO_FP_IN_TOC = 1; /* Handle -mtls-size option. */ rs6000_parse_tls_size_option (); #ifdef SUBTARGET_OVERRIDE_OPTIONS SUBTARGET_OVERRIDE_OPTIONS; #endif #ifdef SUBSUBTARGET_OVERRIDE_OPTIONS SUBSUBTARGET_OVERRIDE_OPTIONS; #endif #ifdef SUB3TARGET_OVERRIDE_OPTIONS SUB3TARGET_OVERRIDE_OPTIONS; #endif if (TARGET_E500 || rs6000_cpu == PROCESSOR_PPCE500MC || rs6000_cpu == PROCESSOR_PPCE500MC64) { /* The e500 and e500mc do not have string instructions, and we set MASK_STRING above when optimizing for size. */ if ((target_flags & MASK_STRING) != 0) target_flags = target_flags & ~MASK_STRING; } else if (rs6000_select[1].string != NULL) { /* For the powerpc-eabispe configuration, we set all these by default, so let's unset them if we manually set another CPU that is not the E500. */ if (!rs6000_explicit_options.spe_abi) rs6000_spe_abi = 0; if (!rs6000_explicit_options.spe) rs6000_spe = 0; if (!rs6000_explicit_options.float_gprs) rs6000_float_gprs = 0; if (!(target_flags_explicit & MASK_ISEL)) target_flags &= ~MASK_ISEL; } /* Detect invalid option combinations with E500. */ CHECK_E500_OPTIONS; rs6000_always_hint = (rs6000_cpu != PROCESSOR_POWER4 && rs6000_cpu != PROCESSOR_POWER5 && rs6000_cpu != PROCESSOR_POWER6 && rs6000_cpu != PROCESSOR_POWER7 && rs6000_cpu != PROCESSOR_PPCA2 && rs6000_cpu != PROCESSOR_CELL); rs6000_sched_groups = (rs6000_cpu == PROCESSOR_POWER4 || rs6000_cpu == PROCESSOR_POWER5 || rs6000_cpu == PROCESSOR_POWER7); rs6000_align_branch_targets = (rs6000_cpu == PROCESSOR_POWER4 || rs6000_cpu == PROCESSOR_POWER5 || rs6000_cpu == PROCESSOR_POWER6 || rs6000_cpu == PROCESSOR_POWER7 || rs6000_cpu == PROCESSOR_PPCE500MC || rs6000_cpu == PROCESSOR_PPCE500MC64); /* Allow debug switches to override the above settings. */ if (TARGET_ALWAYS_HINT > 0) rs6000_always_hint = TARGET_ALWAYS_HINT; if (TARGET_SCHED_GROUPS > 0) rs6000_sched_groups = TARGET_SCHED_GROUPS; if (TARGET_ALIGN_BRANCH_TARGETS > 0) rs6000_align_branch_targets = TARGET_ALIGN_BRANCH_TARGETS; rs6000_sched_restricted_insns_priority = (rs6000_sched_groups ? 1 : 0); /* Handle -msched-costly-dep option. */ rs6000_sched_costly_dep = (rs6000_sched_groups ? store_to_load_dep_costly : no_dep_costly); if (rs6000_sched_costly_dep_str) { if (! strcmp (rs6000_sched_costly_dep_str, "no")) rs6000_sched_costly_dep = no_dep_costly; else if (! strcmp (rs6000_sched_costly_dep_str, "all")) rs6000_sched_costly_dep = all_deps_costly; else if (! strcmp (rs6000_sched_costly_dep_str, "true_store_to_load")) rs6000_sched_costly_dep = true_store_to_load_dep_costly; else if (! strcmp (rs6000_sched_costly_dep_str, "store_to_load")) rs6000_sched_costly_dep = store_to_load_dep_costly; else rs6000_sched_costly_dep = ((enum rs6000_dependence_cost) atoi (rs6000_sched_costly_dep_str)); } /* Handle -minsert-sched-nops option. */ rs6000_sched_insert_nops = (rs6000_sched_groups ? sched_finish_regroup_exact : sched_finish_none); if (rs6000_sched_insert_nops_str) { if (! strcmp (rs6000_sched_insert_nops_str, "no")) rs6000_sched_insert_nops = sched_finish_none; else if (! strcmp (rs6000_sched_insert_nops_str, "pad")) rs6000_sched_insert_nops = sched_finish_pad_groups; else if (! strcmp (rs6000_sched_insert_nops_str, "regroup_exact")) rs6000_sched_insert_nops = sched_finish_regroup_exact; else rs6000_sched_insert_nops = ((enum rs6000_nop_insertion) atoi (rs6000_sched_insert_nops_str)); } #ifdef TARGET_REGNAMES /* If the user desires alternate register names, copy in the alternate names now. */ if (TARGET_REGNAMES) memcpy (rs6000_reg_names, alt_reg_names, sizeof (rs6000_reg_names)); #endif /* Set aix_struct_return last, after the ABI is determined. If -maix-struct-return or -msvr4-struct-return was explicitly used, don't override with the ABI default. */ if (!rs6000_explicit_options.aix_struct_ret) aix_struct_return = (DEFAULT_ABI != ABI_V4 || DRAFT_V4_STRUCT_RET); if (TARGET_LONG_DOUBLE_128 && !TARGET_IEEEQUAD) REAL_MODE_FORMAT (TFmode) = &ibm_extended_format; if (TARGET_TOC) ASM_GENERATE_INTERNAL_LABEL (toc_label_name, "LCTOC", 1); /* We can only guarantee the availability of DI pseudo-ops when assembling for 64-bit targets. */ if (!TARGET_64BIT) { targetm.asm_out.aligned_op.di = NULL; targetm.asm_out.unaligned_op.di = NULL; } /* Set branch target alignment, if not optimizing for size. */ if (!optimize_size) { /* Cell wants to be aligned 8byte for dual issue. */ if (rs6000_cpu == PROCESSOR_CELL) { if (align_functions <= 0) align_functions = 8; if (align_jumps <= 0) align_jumps = 8; if (align_loops <= 0) align_loops = 8; } if (rs6000_align_branch_targets) { if (align_functions <= 0) align_functions = 16; if (align_jumps <= 0) align_jumps = 16; if (align_loops <= 0) align_loops = 16; } if (align_jumps_max_skip <= 0) align_jumps_max_skip = 15; if (align_loops_max_skip <= 0) align_loops_max_skip = 15; } /* Arrange to save and restore machine status around nested functions. */ init_machine_status = rs6000_init_machine_status; /* We should always be splitting complex arguments, but we can't break Linux and Darwin ABIs at the moment. For now, only AIX is fixed. */ if (DEFAULT_ABI != ABI_AIX) targetm.calls.split_complex_arg = NULL; /* Initialize rs6000_cost with the appropriate target costs. */ if (optimize_size) rs6000_cost = TARGET_POWERPC64 ? &size64_cost : &size32_cost; else switch (rs6000_cpu) { case PROCESSOR_RIOS1: rs6000_cost = &rios1_cost; break; case PROCESSOR_RIOS2: rs6000_cost = &rios2_cost; break; case PROCESSOR_RS64A: rs6000_cost = &rs64a_cost; break; case PROCESSOR_MPCCORE: rs6000_cost = &mpccore_cost; break; case PROCESSOR_PPC403: rs6000_cost = &ppc403_cost; break; case PROCESSOR_PPC405: rs6000_cost = &ppc405_cost; break; case PROCESSOR_PPC440: rs6000_cost = &ppc440_cost; break; case PROCESSOR_PPC476: rs6000_cost = &ppc476_cost; break; case PROCESSOR_PPC601: rs6000_cost = &ppc601_cost; break; case PROCESSOR_PPC603: rs6000_cost = &ppc603_cost; break; case PROCESSOR_PPC604: rs6000_cost = &ppc604_cost; break; case PROCESSOR_PPC604e: rs6000_cost = &ppc604e_cost; break; case PROCESSOR_PPC620: rs6000_cost = &ppc620_cost; break; case PROCESSOR_PPC630: rs6000_cost = &ppc630_cost; break; case PROCESSOR_CELL: rs6000_cost = &ppccell_cost; break; case PROCESSOR_PPC750: case PROCESSOR_PPC7400: rs6000_cost = &ppc750_cost; break; case PROCESSOR_PPC7450: rs6000_cost = &ppc7450_cost; break; case PROCESSOR_PPC8540: rs6000_cost = &ppc8540_cost; break; case PROCESSOR_PPCE300C2: case PROCESSOR_PPCE300C3: rs6000_cost = &ppce300c2c3_cost; break; case PROCESSOR_PPCE500MC: rs6000_cost = &ppce500mc_cost; break; case PROCESSOR_PPCE500MC64: rs6000_cost = &ppce500mc64_cost; break; case PROCESSOR_POWER4: case PROCESSOR_POWER5: rs6000_cost = &power4_cost; break; case PROCESSOR_POWER6: rs6000_cost = &power6_cost; break; case PROCESSOR_POWER7: rs6000_cost = &power7_cost; break; case PROCESSOR_PPCA2: rs6000_cost = &ppca2_cost; break; default: gcc_unreachable (); } if (!PARAM_SET_P (PARAM_SIMULTANEOUS_PREFETCHES)) set_param_value ("simultaneous-prefetches", rs6000_cost->simultaneous_prefetches); if (!PARAM_SET_P (PARAM_L1_CACHE_SIZE)) set_param_value ("l1-cache-size", rs6000_cost->l1_cache_size); if (!PARAM_SET_P (PARAM_L1_CACHE_LINE_SIZE)) set_param_value ("l1-cache-line-size", rs6000_cost->cache_line_size); if (!PARAM_SET_P (PARAM_L2_CACHE_SIZE)) set_param_value ("l2-cache-size", rs6000_cost->l2_cache_size); /* If using typedef char *va_list, signal that __builtin_va_start (&ap, 0) can be optimized to ap = __builtin_next_arg (0). */ if (DEFAULT_ABI != ABI_V4) targetm.expand_builtin_va_start = NULL; /* Set up single/double float flags. If TARGET_HARD_FLOAT is set, but neither single or double is set, then set both flags. */ if (TARGET_HARD_FLOAT && TARGET_FPRS && rs6000_single_float == 0 && rs6000_double_float == 0) rs6000_single_float = rs6000_double_float = 1; /* Reset single and double FP flags if target is E500. */ if (TARGET_E500) { rs6000_single_float = rs6000_double_float = 0; if (TARGET_E500_SINGLE) rs6000_single_float = 1; if (TARGET_E500_DOUBLE) rs6000_single_float = rs6000_double_float = 1; } /* If not explicitly specified via option, decide whether to generate indexed load/store instructions. */ if (TARGET_AVOID_XFORM == -1) /* Avoid indexed addressing when targeting Power6 in order to avoid the DERAT mispredict penalty. */ TARGET_AVOID_XFORM = (rs6000_cpu == PROCESSOR_POWER6 && TARGET_CMPB); rs6000_init_hard_regno_mode_ok (); } /* Implement targetm.vectorize.builtin_mask_for_load. */ static tree rs6000_builtin_mask_for_load (void) { if (TARGET_ALTIVEC || TARGET_VSX) return altivec_builtin_mask_for_load; else return 0; } /* Implement targetm.vectorize.builtin_conversion. Returns a decl of a function that implements conversion of an integer vector into a floating-point vector, or vice-versa. TYPE is the type of the integer side of the conversion. Return NULL_TREE if it is not available. */ static tree rs6000_builtin_conversion (unsigned int tcode, tree type) { enum tree_code code = (enum tree_code) tcode; switch (code) { case FIX_TRUNC_EXPR: switch (TYPE_MODE (type)) { case V2DImode: if (!VECTOR_UNIT_VSX_P (V2DFmode)) return NULL_TREE; return TYPE_UNSIGNED (type) ? rs6000_builtin_decls[VSX_BUILTIN_XVCVDPUXDS_UNS] : rs6000_builtin_decls[VSX_BUILTIN_XVCVDPSXDS]; case V4SImode: if (VECTOR_UNIT_NONE_P (V4SImode) || VECTOR_UNIT_NONE_P (V4SFmode)) return NULL_TREE; return TYPE_UNSIGNED (type) ? rs6000_builtin_decls[VECTOR_BUILTIN_FIXUNS_V4SF_V4SI] : rs6000_builtin_decls[VECTOR_BUILTIN_FIX_V4SF_V4SI]; default: return NULL_TREE; } case FLOAT_EXPR: switch (TYPE_MODE (type)) { case V2DImode: if (!VECTOR_UNIT_VSX_P (V2DFmode)) return NULL_TREE; return TYPE_UNSIGNED (type) ? rs6000_builtin_decls[VSX_BUILTIN_XVCVUXDDP] : rs6000_builtin_decls[VSX_BUILTIN_XVCVSXDDP]; case V4SImode: if (VECTOR_UNIT_NONE_P (V4SImode) || VECTOR_UNIT_NONE_P (V4SFmode)) return NULL_TREE; return TYPE_UNSIGNED (type) ? rs6000_builtin_decls[VECTOR_BUILTIN_UNSFLOAT_V4SI_V4SF] : rs6000_builtin_decls[VECTOR_BUILTIN_FLOAT_V4SI_V4SF]; default: return NULL_TREE; } default: return NULL_TREE; } } /* Implement targetm.vectorize.builtin_mul_widen_even. */ static tree rs6000_builtin_mul_widen_even (tree type) { if (!TARGET_ALTIVEC) return NULL_TREE; switch (TYPE_MODE (type)) { case V8HImode: return TYPE_UNSIGNED (type) ? rs6000_builtin_decls[ALTIVEC_BUILTIN_VMULEUH_UNS] : rs6000_builtin_decls[ALTIVEC_BUILTIN_VMULESH]; case V16QImode: return TYPE_UNSIGNED (type) ? rs6000_builtin_decls[ALTIVEC_BUILTIN_VMULEUB_UNS] : rs6000_builtin_decls[ALTIVEC_BUILTIN_VMULESB]; default: return NULL_TREE; } } /* Implement targetm.vectorize.builtin_mul_widen_odd. */ static tree rs6000_builtin_mul_widen_odd (tree type) { if (!TARGET_ALTIVEC) return NULL_TREE; switch (TYPE_MODE (type)) { case V8HImode: return TYPE_UNSIGNED (type) ? rs6000_builtin_decls[ALTIVEC_BUILTIN_VMULOUH_UNS] : rs6000_builtin_decls[ALTIVEC_BUILTIN_VMULOSH]; case V16QImode: return TYPE_UNSIGNED (type) ? rs6000_builtin_decls[ALTIVEC_BUILTIN_VMULOUB_UNS] : rs6000_builtin_decls[ALTIVEC_BUILTIN_VMULOSB]; default: return NULL_TREE; } } /* Return true iff, data reference of TYPE can reach vector alignment (16) after applying N number of iterations. This routine does not determine how may iterations are required to reach desired alignment. */ static bool rs6000_vector_alignment_reachable (const_tree type ATTRIBUTE_UNUSED, bool is_packed) { if (is_packed) return false; if (TARGET_32BIT) { if (rs6000_alignment_flags == MASK_ALIGN_NATURAL) return true; if (rs6000_alignment_flags == MASK_ALIGN_POWER) return true; return false; } else { if (TARGET_MACHO) return false; /* Assuming that all other types are naturally aligned. CHECKME! */ return true; } } /* Return true if the vector misalignment factor is supported by the target. */ bool rs6000_builtin_support_vector_misalignment (enum machine_mode mode, const_tree type, int misalignment, bool is_packed) { if (TARGET_VSX) { /* Return if movmisalign pattern is not supported for this mode. */ if (optab_handler (movmisalign_optab, mode)->insn_code == CODE_FOR_nothing) return false; if (misalignment == -1) { /* misalignment factor is unknown at compile time but we know it's word aligned. */ if (rs6000_vector_alignment_reachable (type, is_packed)) return true; return false; } /* VSX supports word-aligned vector. */ if (misalignment % 4 == 0) return true; } return false; } /* Implement targetm.vectorize.builtin_vec_perm. */ tree rs6000_builtin_vec_perm (tree type, tree *mask_element_type) { tree inner_type = TREE_TYPE (type); bool uns_p = TYPE_UNSIGNED (inner_type); tree d; *mask_element_type = unsigned_char_type_node; switch (TYPE_MODE (type)) { case V16QImode: d = (uns_p ? rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_16QI_UNS] : rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_16QI]); break; case V8HImode: d = (uns_p ? rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_8HI_UNS] : rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_8HI]); break; case V4SImode: d = (uns_p ? rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_4SI_UNS] : rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_4SI]); break; case V4SFmode: d = rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_4SF]; break; case V2DFmode: if (!TARGET_ALLOW_DF_PERMUTE) return NULL_TREE; d = rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_2DF]; break; case V2DImode: if (!TARGET_ALLOW_DF_PERMUTE) return NULL_TREE; d = (uns_p ? rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_2DI_UNS] : rs6000_builtin_decls[ALTIVEC_BUILTIN_VPERM_2DI]); break; default: return NULL_TREE; } gcc_assert (d); return d; } /* Handle generic options of the form -mfoo=yes/no. NAME is the option name. VALUE is the option value. FLAG is the pointer to the flag where to store a 1 or 0, depending on whether the option value is 'yes' or 'no' respectively. */ static void rs6000_parse_yes_no_option (const char *name, const char *value, int *flag) { if (value == 0) return; else if (!strcmp (value, "yes")) *flag = 1; else if (!strcmp (value, "no")) *flag = 0; else error ("unknown -m%s= option specified: '%s'", name, value); } /* Validate and record the size specified with the -mtls-size option. */ static void rs6000_parse_tls_size_option (void) { if (rs6000_tls_size_string == 0) return; else if (strcmp (rs6000_tls_size_string, "16") == 0) rs6000_tls_size = 16; else if (strcmp (rs6000_tls_size_string, "32") == 0) rs6000_tls_size = 32; else if (strcmp (rs6000_tls_size_string, "64") == 0) rs6000_tls_size = 64; else error ("bad value %qs for -mtls-size switch", rs6000_tls_size_string); } void optimization_options (int level ATTRIBUTE_UNUSED, int size ATTRIBUTE_UNUSED) { if (DEFAULT_ABI == ABI_DARWIN) /* The Darwin libraries never set errno, so we might as well avoid calling them when that's the only reason we would. */ flag_errno_math = 0; /* Double growth factor to counter reduced min jump length. */ set_param_value ("max-grow-copy-bb-insns", 16); /* Enable section anchors by default. Skip section anchors for Objective C and Objective C++ until front-ends fixed. */ if (!TARGET_MACHO && lang_hooks.name[4] != 'O') flag_section_anchors = 2; } static enum fpu_type_t rs6000_parse_fpu_option (const char *option) { if (!strcmp("none", option)) return FPU_NONE; if (!strcmp("sp_lite", option)) return FPU_SF_LITE; if (!strcmp("dp_lite", option)) return FPU_DF_LITE; if (!strcmp("sp_full", option)) return FPU_SF_FULL; if (!strcmp("dp_full", option)) return FPU_DF_FULL; error("unknown value %s for -mfpu", option); return FPU_NONE; } /* Returns a function decl for a vectorized version of the builtin function with builtin function code FN and the result vector type TYPE, or NULL_TREE if it is not available. */ static tree rs6000_builtin_vectorized_function (tree fndecl, tree type_out, tree type_in) { enum machine_mode in_mode, out_mode; int in_n, out_n; enum built_in_function fn = DECL_FUNCTION_CODE (fndecl); if (TREE_CODE (type_out) != VECTOR_TYPE || TREE_CODE (type_in) != VECTOR_TYPE || !TARGET_VECTORIZE_BUILTINS || DECL_BUILT_IN_CLASS (fndecl) != BUILT_IN_NORMAL) return NULL_TREE; out_mode = TYPE_MODE (TREE_TYPE (type_out)); out_n = TYPE_VECTOR_SUBPARTS (type_out); in_mode = TYPE_MODE (TREE_TYPE (type_in)); in_n = TYPE_VECTOR_SUBPARTS (type_in); switch (fn) { case BUILT_IN_COPYSIGN: if (VECTOR_UNIT_VSX_P (V2DFmode) && out_mode == DFmode && out_n == 2 && in_mode == DFmode && in_n == 2) return rs6000_builtin_decls[VSX_BUILTIN_CPSGNDP]; break; case BUILT_IN_COPYSIGNF: if (out_mode != SFmode || out_n != 4 || in_mode != SFmode || in_n != 4) break; if (VECTOR_UNIT_VSX_P (V4SFmode)) return rs6000_builtin_decls[VSX_BUILTIN_CPSGNSP]; if (VECTOR_UNIT_ALTIVEC_P (V4SFmode)) return rs6000_builtin_decls[ALTIVEC_BUILTIN_COPYSIGN_V4SF]; break; case BUILT_IN_SQRT: if (VECTOR_UNIT_VSX_P (V2DFmode) && out_mode == DFmode && out_n == 2 && in_mode == DFmode && in_n == 2) return rs6000_builtin_decls[VSX_BUILTIN_XVSQRTDP]; break; case BUILT_IN_SQRTF: if (VECTOR_UNIT_VSX_P (V4SFmode) && out_mode == SFmode && out_n == 4 && in_mode == SFmode && in_n == 4) return rs6000_builtin_decls[VSX_BUILTIN_XVSQRTSP]; break; case BUILT_IN_CEIL: if (VECTOR_UNIT_VSX_P (V2DFmode) && out_mode == DFmode && out_n == 2 && in_mode == DFmode && in_n == 2) return rs6000_builtin_decls[VSX_BUILTIN_XVRDPIP]; break; case BUILT_IN_CEILF: if (out_mode != SFmode || out_n != 4 || in_mode != SFmode || in_n != 4) break; if (VECTOR_UNIT_VSX_P (V4SFmode)) return rs6000_builtin_decls[VSX_BUILTIN_XVRSPIP]; if (VECTOR_UNIT_ALTIVEC_P (V4SFmode)) return rs6000_builtin_decls[ALTIVEC_BUILTIN_VRFIP]; break; case BUILT_IN_FLOOR: if (VECTOR_UNIT_VSX_P (V2DFmode) && out_mode == DFmode && out_n == 2 && in_mode == DFmode && in_n == 2) return rs6000_builtin_decls[VSX_BUILTIN_XVRDPIM]; break; case BUILT_IN_FLOORF: if (out_mode != SFmode || out_n != 4 || in_mode != SFmode || in_n != 4) break; if (VECTOR_UNIT_VSX_P (V4SFmode)) return rs6000_builtin_decls[VSX_BUILTIN_XVRSPIM]; if (VECTOR_UNIT_ALTIVEC_P (V4SFmode)) return rs6000_builtin_decls[ALTIVEC_BUILTIN_VRFIM]; break; case BUILT_IN_TRUNC: if (VECTOR_UNIT_VSX_P (V2DFmode) && out_mode == DFmode && out_n == 2 && in_mode == DFmode && in_n == 2) return rs6000_builtin_decls[VSX_BUILTIN_XVRDPIZ]; break; case BUILT_IN_TRUNCF: if (out_mode != SFmode || out_n != 4 || in_mode != SFmode || in_n != 4) break; if (VECTOR_UNIT_VSX_P (V4SFmode)) return rs6000_builtin_decls[VSX_BUILTIN_XVRSPIZ]; if (VECTOR_UNIT_ALTIVEC_P (V4SFmode)) return rs6000_builtin_decls[ALTIVEC_BUILTIN_VRFIZ]; break; case BUILT_IN_NEARBYINT: if (VECTOR_UNIT_VSX_P (V2DFmode) && flag_unsafe_math_optimizations && out_mode == DFmode && out_n == 2 && in_mode == DFmode && in_n == 2) return rs6000_builtin_decls[VSX_BUILTIN_XVRDPI]; break; case BUILT_IN_NEARBYINTF: if (VECTOR_UNIT_VSX_P (V4SFmode) && flag_unsafe_math_optimizations && out_mode == SFmode && out_n == 4 && in_mode == SFmode && in_n == 4) return rs6000_builtin_decls[VSX_BUILTIN_XVRSPI]; break; case BUILT_IN_RINT: if (VECTOR_UNIT_VSX_P (V2DFmode) && !flag_trapping_math && out_mode == DFmode && out_n == 2 && in_mode == DFmode && in_n == 2) return rs6000_builtin_decls[VSX_BUILTIN_XVRDPIC]; break; case BUILT_IN_RINTF: if (VECTOR_UNIT_VSX_P (V4SFmode) && !flag_trapping_math && out_mode == SFmode && out_n == 4 && in_mode == SFmode && in_n == 4) return rs6000_builtin_decls[VSX_BUILTIN_XVRSPIC]; break; default: break; } return NULL_TREE; } /* Implement TARGET_HANDLE_OPTION. */ static bool rs6000_handle_option (size_t code, const char *arg, int value) { enum fpu_type_t fpu_type = FPU_NONE; int isel; switch (code) { case OPT_mno_power: target_flags &= ~(MASK_POWER | MASK_POWER2 | MASK_MULTIPLE | MASK_STRING); target_flags_explicit |= (MASK_POWER | MASK_POWER2 | MASK_MULTIPLE | MASK_STRING); break; case OPT_mno_powerpc: target_flags &= ~(MASK_POWERPC | MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_POWERPC64); target_flags_explicit |= (MASK_POWERPC | MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_POWERPC64); break; case OPT_mfull_toc: target_flags &= ~MASK_MINIMAL_TOC; TARGET_NO_FP_IN_TOC = 0; TARGET_NO_SUM_IN_TOC = 0; target_flags_explicit |= MASK_MINIMAL_TOC; #ifdef TARGET_USES_SYSV4_OPT /* Note, V.4 no longer uses a normal TOC, so make -mfull-toc, be just the same as -mminimal-toc. */ target_flags |= MASK_MINIMAL_TOC; target_flags_explicit |= MASK_MINIMAL_TOC; #endif break; #ifdef TARGET_USES_SYSV4_OPT case OPT_mtoc: /* Make -mtoc behave like -mminimal-toc. */ target_flags |= MASK_MINIMAL_TOC; target_flags_explicit |= MASK_MINIMAL_TOC; break; #endif #ifdef TARGET_USES_AIX64_OPT case OPT_maix64: #else case OPT_m64: #endif target_flags |= MASK_POWERPC64 | MASK_POWERPC; target_flags |= ~target_flags_explicit & MASK_PPC_GFXOPT; target_flags_explicit |= MASK_POWERPC64 | MASK_POWERPC; break; #ifdef TARGET_USES_AIX64_OPT case OPT_maix32: #else case OPT_m32: #endif target_flags &= ~MASK_POWERPC64; target_flags_explicit |= MASK_POWERPC64; break; case OPT_minsert_sched_nops_: rs6000_sched_insert_nops_str = arg; break; case OPT_mminimal_toc: if (value == 1) { TARGET_NO_FP_IN_TOC = 0; TARGET_NO_SUM_IN_TOC = 0; } break; case OPT_mpower: if (value == 1) { target_flags |= (MASK_MULTIPLE | MASK_STRING); target_flags_explicit |= (MASK_MULTIPLE | MASK_STRING); } break; case OPT_mpower2: if (value == 1) { target_flags |= (MASK_POWER | MASK_MULTIPLE | MASK_STRING); target_flags_explicit |= (MASK_POWER | MASK_MULTIPLE | MASK_STRING); } break; case OPT_mpowerpc_gpopt: case OPT_mpowerpc_gfxopt: if (value == 1) { target_flags |= MASK_POWERPC; target_flags_explicit |= MASK_POWERPC; } break; case OPT_maix_struct_return: case OPT_msvr4_struct_return: rs6000_explicit_options.aix_struct_ret = true; break; case OPT_mvrsave: rs6000_explicit_options.vrsave = true; TARGET_ALTIVEC_VRSAVE = value; break; case OPT_mvrsave_: rs6000_explicit_options.vrsave = true; rs6000_parse_yes_no_option ("vrsave", arg, &(TARGET_ALTIVEC_VRSAVE)); break; case OPT_misel_: target_flags_explicit |= MASK_ISEL; isel = 0; rs6000_parse_yes_no_option ("isel", arg, &isel); if (isel) target_flags |= MASK_ISEL; else target_flags &= ~MASK_ISEL; break; case OPT_mspe: rs6000_explicit_options.spe = true; rs6000_spe = value; break; case OPT_mspe_: rs6000_explicit_options.spe = true; rs6000_parse_yes_no_option ("spe", arg, &(rs6000_spe)); break; case OPT_mdebug_: rs6000_debug_name = arg; break; #ifdef TARGET_USES_SYSV4_OPT case OPT_mcall_: rs6000_abi_name = arg; break; case OPT_msdata_: rs6000_sdata_name = arg; break; case OPT_mtls_size_: rs6000_tls_size_string = arg; break; case OPT_mrelocatable: if (value == 1) { target_flags |= MASK_MINIMAL_TOC; target_flags_explicit |= MASK_MINIMAL_TOC; TARGET_NO_FP_IN_TOC = 1; } break; case OPT_mrelocatable_lib: if (value == 1) { target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC; target_flags_explicit |= MASK_RELOCATABLE | MASK_MINIMAL_TOC; TARGET_NO_FP_IN_TOC = 1; } else { target_flags &= ~MASK_RELOCATABLE; target_flags_explicit |= MASK_RELOCATABLE; } break; #endif case OPT_mabi_: if (!strcmp (arg, "altivec")) { rs6000_explicit_options.altivec_abi = true; rs6000_altivec_abi = 1; /* Enabling the AltiVec ABI turns off the SPE ABI. */ rs6000_spe_abi = 0; } else if (! strcmp (arg, "no-altivec")) { rs6000_explicit_options.altivec_abi = true; rs6000_altivec_abi = 0; } else if (! strcmp (arg, "spe")) { rs6000_explicit_options.spe_abi = true; rs6000_spe_abi = 1; rs6000_altivec_abi = 0; if (!TARGET_SPE_ABI) error ("not configured for ABI: '%s'", arg); } else if (! strcmp (arg, "no-spe")) { rs6000_explicit_options.spe_abi = true; rs6000_spe_abi = 0; } /* These are here for testing during development only, do not document in the manual please. */ else if (! strcmp (arg, "d64")) { rs6000_darwin64_abi = 1; warning (0, "Using darwin64 ABI"); } else if (! strcmp (arg, "d32")) { rs6000_darwin64_abi = 0; warning (0, "Using old darwin ABI"); } else if (! strcmp (arg, "ibmlongdouble")) { rs6000_explicit_options.ieee = true; rs6000_ieeequad = 0; warning (0, "Using IBM extended precision long double"); } else if (! strcmp (arg, "ieeelongdouble")) { rs6000_explicit_options.ieee = true; rs6000_ieeequad = 1; warning (0, "Using IEEE extended precision long double"); } else { error ("unknown ABI specified: '%s'", arg); return false; } break; case OPT_mcpu_: rs6000_select[1].string = arg; break; case OPT_mtune_: rs6000_select[2].string = arg; break; case OPT_mtraceback_: rs6000_traceback_name = arg; break; case OPT_mfloat_gprs_: rs6000_explicit_options.float_gprs = true; if (! strcmp (arg, "yes") || ! strcmp (arg, "single")) rs6000_float_gprs = 1; else if (! strcmp (arg, "double")) rs6000_float_gprs = 2; else if (! strcmp (arg, "no")) rs6000_float_gprs = 0; else { error ("invalid option for -mfloat-gprs: '%s'", arg); return false; } break; case OPT_mlong_double_: rs6000_explicit_options.long_double = true; rs6000_long_double_type_size = RS6000_DEFAULT_LONG_DOUBLE_SIZE; if (value != 64 && value != 128) { error ("Unknown switch -mlong-double-%s", arg); rs6000_long_double_type_size = RS6000_DEFAULT_LONG_DOUBLE_SIZE; return false; } else rs6000_long_double_type_size = value; break; case OPT_msched_costly_dep_: rs6000_sched_costly_dep_str = arg; break; case OPT_malign_: rs6000_explicit_options.alignment = true; if (! strcmp (arg, "power")) { /* On 64-bit Darwin, power alignment is ABI-incompatible with some C library functions, so warn about it. The flag may be useful for performance studies from time to time though, so don't disable it entirely. */ if (DEFAULT_ABI == ABI_DARWIN && TARGET_64BIT) warning (0, "-malign-power is not supported for 64-bit Darwin;" " it is incompatible with the installed C and C++ libraries"); rs6000_alignment_flags = MASK_ALIGN_POWER; } else if (! strcmp (arg, "natural")) rs6000_alignment_flags = MASK_ALIGN_NATURAL; else { error ("unknown -malign-XXXXX option specified: '%s'", arg); return false; } break; case OPT_msingle_float: if (!TARGET_SINGLE_FPU) warning (0, "-msingle-float option equivalent to -mhard-float"); /* -msingle-float implies -mno-double-float and TARGET_HARD_FLOAT. */ rs6000_double_float = 0; target_flags &= ~MASK_SOFT_FLOAT; target_flags_explicit |= MASK_SOFT_FLOAT; break; case OPT_mdouble_float: /* -mdouble-float implies -msingle-float and TARGET_HARD_FLOAT. */ rs6000_single_float = 1; target_flags &= ~MASK_SOFT_FLOAT; target_flags_explicit |= MASK_SOFT_FLOAT; break; case OPT_msimple_fpu: if (!TARGET_SINGLE_FPU) warning (0, "-msimple-fpu option ignored"); break; case OPT_mhard_float: /* -mhard_float implies -msingle-float and -mdouble-float. */ rs6000_single_float = rs6000_double_float = 1; break; case OPT_msoft_float: /* -msoft_float implies -mnosingle-float and -mnodouble-float. */ rs6000_single_float = rs6000_double_float = 0; break; case OPT_mfpu_: fpu_type = rs6000_parse_fpu_option(arg); if (fpu_type != FPU_NONE) /* If -mfpu is not none, then turn off SOFT_FLOAT, turn on HARD_FLOAT. */ { target_flags &= ~MASK_SOFT_FLOAT; target_flags_explicit |= MASK_SOFT_FLOAT; rs6000_xilinx_fpu = 1; if (fpu_type == FPU_SF_LITE || fpu_type == FPU_SF_FULL) rs6000_single_float = 1; if (fpu_type == FPU_DF_LITE || fpu_type == FPU_DF_FULL) rs6000_single_float = rs6000_double_float = 1; if (fpu_type == FPU_SF_LITE || fpu_type == FPU_DF_LITE) rs6000_simple_fpu = 1; } else { /* -mfpu=none is equivalent to -msoft-float */ target_flags |= MASK_SOFT_FLOAT; target_flags_explicit |= MASK_SOFT_FLOAT; rs6000_single_float = rs6000_double_float = 0; } break; } return true; } /* Do anything needed at the start of the asm file. */ static void rs6000_file_start (void) { size_t i; char buffer[80]; const char *start = buffer; struct rs6000_cpu_select *ptr; const char *default_cpu = TARGET_CPU_DEFAULT; FILE *file = asm_out_file; default_file_start (); #ifdef TARGET_BI_ARCH if ((TARGET_DEFAULT ^ target_flags) & MASK_64BIT) default_cpu = 0; #endif if (flag_verbose_asm) { sprintf (buffer, "\n%s rs6000/powerpc options:", ASM_COMMENT_START); rs6000_select[0].string = default_cpu; for (i = 0; i < ARRAY_SIZE (rs6000_select); i++) { ptr = &rs6000_select[i]; if (ptr->string != (char *)0 && ptr->string[0] != '\0') { fprintf (file, "%s %s%s", start, ptr->name, ptr->string); start = ""; } } if (PPC405_ERRATUM77) { fprintf (file, "%s PPC405CR_ERRATUM77", start); start = ""; } #ifdef USING_ELFOS_H switch (rs6000_sdata) { case SDATA_NONE: fprintf (file, "%s -msdata=none", start); start = ""; break; case SDATA_DATA: fprintf (file, "%s -msdata=data", start); start = ""; break; case SDATA_SYSV: fprintf (file, "%s -msdata=sysv", start); start = ""; break; case SDATA_EABI: fprintf (file, "%s -msdata=eabi", start); start = ""; break; } if (rs6000_sdata && g_switch_value) { fprintf (file, "%s -G " HOST_WIDE_INT_PRINT_UNSIGNED, start, g_switch_value); start = ""; } #endif if (*start == '\0') putc ('\n', file); } #ifdef HAVE_AS_GNU_ATTRIBUTE if (TARGET_32BIT && DEFAULT_ABI == ABI_V4) { fprintf (file, "\t.gnu_attribute 4, %d\n", ((TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT) ? 1 : (TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_SINGLE_FLOAT) ? 3 : 2)); fprintf (file, "\t.gnu_attribute 8, %d\n", (TARGET_ALTIVEC_ABI ? 2 : TARGET_SPE_ABI ? 3 : 1)); fprintf (file, "\t.gnu_attribute 12, %d\n", aix_struct_return ? 2 : 1); } #endif if (DEFAULT_ABI == ABI_AIX || (TARGET_ELF && flag_pic == 2)) { switch_to_section (toc_section); switch_to_section (text_section); } } /* Return nonzero if this function is known to have a null epilogue. */ int direct_return (void) { if (reload_completed) { rs6000_stack_t *info = rs6000_stack_info (); if (info->first_gp_reg_save == 32 && info->first_fp_reg_save == 64 && info->first_altivec_reg_save == LAST_ALTIVEC_REGNO + 1 && ! info->lr_save_p && ! info->cr_save_p && info->vrsave_mask == 0 && ! info->push_p) return 1; } return 0; } /* Return the number of instructions it takes to form a constant in an integer register. */ int num_insns_constant_wide (HOST_WIDE_INT value) { /* signed constant loadable with {cal|addi} */ if ((unsigned HOST_WIDE_INT) (value + 0x8000) < 0x10000) return 1; /* constant loadable with {cau|addis} */ else if ((value & 0xffff) == 0 && (value >> 31 == -1 || value >> 31 == 0)) return 1; #if HOST_BITS_PER_WIDE_INT == 64 else if (TARGET_POWERPC64) { HOST_WIDE_INT low = ((value & 0xffffffff) ^ 0x80000000) - 0x80000000; HOST_WIDE_INT high = value >> 31; if (high == 0 || high == -1) return 2; high >>= 1; if (low == 0) return num_insns_constant_wide (high) + 1; else if (high == 0) return num_insns_constant_wide (low) + 1; else return (num_insns_constant_wide (high) + num_insns_constant_wide (low) + 1); } #endif else return 2; } int num_insns_constant (rtx op, enum machine_mode mode) { HOST_WIDE_INT low, high; switch (GET_CODE (op)) { case CONST_INT: #if HOST_BITS_PER_WIDE_INT == 64 if ((INTVAL (op) >> 31) != 0 && (INTVAL (op) >> 31) != -1 && mask64_operand (op, mode)) return 2; else #endif return num_insns_constant_wide (INTVAL (op)); case CONST_DOUBLE: if (mode == SFmode || mode == SDmode) { long l; REAL_VALUE_TYPE rv; REAL_VALUE_FROM_CONST_DOUBLE (rv, op); if (DECIMAL_FLOAT_MODE_P (mode)) REAL_VALUE_TO_TARGET_DECIMAL32 (rv, l); else REAL_VALUE_TO_TARGET_SINGLE (rv, l); return num_insns_constant_wide ((HOST_WIDE_INT) l); } if (mode == VOIDmode || mode == DImode) { high = CONST_DOUBLE_HIGH (op); low = CONST_DOUBLE_LOW (op); } else { long l[2]; REAL_VALUE_TYPE rv; REAL_VALUE_FROM_CONST_DOUBLE (rv, op); if (DECIMAL_FLOAT_MODE_P (mode)) REAL_VALUE_TO_TARGET_DECIMAL64 (rv, l); else REAL_VALUE_TO_TARGET_DOUBLE (rv, l); high = l[WORDS_BIG_ENDIAN == 0]; low = l[WORDS_BIG_ENDIAN != 0]; } if (TARGET_32BIT) return (num_insns_constant_wide (low) + num_insns_constant_wide (high)); else { if ((high == 0 && low >= 0) || (high == -1 && low < 0)) return num_insns_constant_wide (low); else if (mask64_operand (op, mode)) return 2; else if (low == 0) return num_insns_constant_wide (high) + 1; else return (num_insns_constant_wide (high) + num_insns_constant_wide (low) + 1); } default: gcc_unreachable (); } } /* Interpret element ELT of the CONST_VECTOR OP as an integer value. If the mode of OP is MODE_VECTOR_INT, this simply returns the corresponding element of the vector, but for V4SFmode and V2SFmode, the corresponding "float" is interpreted as an SImode integer. */ HOST_WIDE_INT const_vector_elt_as_int (rtx op, unsigned int elt) { rtx tmp = CONST_VECTOR_ELT (op, elt); if (GET_MODE (op) == V4SFmode || GET_MODE (op) == V2SFmode) tmp = gen_lowpart (SImode, tmp); return INTVAL (tmp); } /* Return true if OP can be synthesized with a particular vspltisb, vspltish or vspltisw instruction. OP is a CONST_VECTOR. Which instruction is used depends on STEP and COPIES, one of which will be 1. If COPIES > 1, all items are set to the same value and contain COPIES replicas of the vsplt's operand; if STEP > 1, one in STEP elements is set to the vsplt's operand and the others are set to the value of the operand's msb. */ static bool vspltis_constant (rtx op, unsigned step, unsigned copies) { enum machine_mode mode = GET_MODE (op); enum machine_mode inner = GET_MODE_INNER (mode); unsigned i; unsigned nunits = GET_MODE_NUNITS (mode); unsigned bitsize = GET_MODE_BITSIZE (inner); unsigned mask = GET_MODE_MASK (inner); HOST_WIDE_INT val = const_vector_elt_as_int (op, nunits - 1); HOST_WIDE_INT splat_val = val; HOST_WIDE_INT msb_val = val > 0 ? 0 : -1; /* Construct the value to be splatted, if possible. If not, return 0. */ for (i = 2; i <= copies; i *= 2) { HOST_WIDE_INT small_val; bitsize /= 2; small_val = splat_val >> bitsize; mask >>= bitsize; if (splat_val != ((small_val << bitsize) | (small_val & mask))) return false; splat_val = small_val; } /* Check if SPLAT_VAL can really be the operand of a vspltis[bhw]. */ if (EASY_VECTOR_15 (splat_val)) ; /* Also check if we can splat, and then add the result to itself. Do so if the value is positive, of if the splat instruction is using OP's mode; for splat_val < 0, the splat and the add should use the same mode. */ else if (EASY_VECTOR_15_ADD_SELF (splat_val) && (splat_val >= 0 || (step == 1 && copies == 1))) ; /* Also check if are loading up the most significant bit which can be done by loading up -1 and shifting the value left by -1. */ else if (EASY_VECTOR_MSB (splat_val, inner)) ; else return false; /* Check if VAL is present in every STEP-th element, and the other elements are filled with its most significant bit. */ for (i = 0; i < nunits - 1; ++i) { HOST_WIDE_INT desired_val; if (((i + 1) & (step - 1)) == 0) desired_val = val; else desired_val = msb_val; if (desired_val != const_vector_elt_as_int (op, i)) return false; } return true; } /* Return true if OP is of the given MODE and can be synthesized with a vspltisb, vspltish or vspltisw. */ bool easy_altivec_constant (rtx op, enum machine_mode mode) { unsigned step, copies; if (mode == VOIDmode) mode = GET_MODE (op); else if (mode != GET_MODE (op)) return false; /* Start with a vspltisw. */ step = GET_MODE_NUNITS (mode) / 4; copies = 1; if (vspltis_constant (op, step, copies)) return true; /* Then try with a vspltish. */ if (step == 1) copies <<= 1; else step >>= 1; if (vspltis_constant (op, step, copies)) return true; /* And finally a vspltisb. */ if (step == 1) copies <<= 1; else step >>= 1; if (vspltis_constant (op, step, copies)) return true; return false; } /* Generate a VEC_DUPLICATE representing a vspltis[bhw] instruction whose result is OP. Abort if it is not possible. */ rtx gen_easy_altivec_constant (rtx op) { enum machine_mode mode = GET_MODE (op); int nunits = GET_MODE_NUNITS (mode); rtx last = CONST_VECTOR_ELT (op, nunits - 1); unsigned step = nunits / 4; unsigned copies = 1; /* Start with a vspltisw. */ if (vspltis_constant (op, step, copies)) return gen_rtx_VEC_DUPLICATE (V4SImode, gen_lowpart (SImode, last)); /* Then try with a vspltish. */ if (step == 1) copies <<= 1; else step >>= 1; if (vspltis_constant (op, step, copies)) return gen_rtx_VEC_DUPLICATE (V8HImode, gen_lowpart (HImode, last)); /* And finally a vspltisb. */ if (step == 1) copies <<= 1; else step >>= 1; if (vspltis_constant (op, step, copies)) return gen_rtx_VEC_DUPLICATE (V16QImode, gen_lowpart (QImode, last)); gcc_unreachable (); } const char * output_vec_const_move (rtx *operands) { int cst, cst2; enum machine_mode mode; rtx dest, vec; dest = operands[0]; vec = operands[1]; mode = GET_MODE (dest); if (TARGET_VSX && zero_constant (vec, mode)) return "xxlxor %x0,%x0,%x0"; if (TARGET_ALTIVEC) { rtx splat_vec; if (zero_constant (vec, mode)) return "vxor %0,%0,%0"; splat_vec = gen_easy_altivec_constant (vec); gcc_assert (GET_CODE (splat_vec) == VEC_DUPLICATE); operands[1] = XEXP (splat_vec, 0); if (!EASY_VECTOR_15 (INTVAL (operands[1]))) return "#"; switch (GET_MODE (splat_vec)) { case V4SImode: return "vspltisw %0,%1"; case V8HImode: return "vspltish %0,%1"; case V16QImode: return "vspltisb %0,%1"; default: gcc_unreachable (); } } gcc_assert (TARGET_SPE); /* Vector constant 0 is handled as a splitter of V2SI, and in the pattern of V1DI, V4HI, and V2SF. FIXME: We should probably return # and add post reload splitters for these, but this way is so easy ;-). */ cst = INTVAL (CONST_VECTOR_ELT (vec, 0)); cst2 = INTVAL (CONST_VECTOR_ELT (vec, 1)); operands[1] = CONST_VECTOR_ELT (vec, 0); operands[2] = CONST_VECTOR_ELT (vec, 1); if (cst == cst2) return "li %0,%1\n\tevmergelo %0,%0,%0"; else return "li %0,%1\n\tevmergelo %0,%0,%0\n\tli %0,%2"; } /* Initialize TARGET of vector PAIRED to VALS. */ void paired_expand_vector_init (rtx target, rtx vals) { enum machine_mode mode = GET_MODE (target); int n_elts = GET_MODE_NUNITS (mode); int n_var = 0; rtx x, new_rtx, tmp, constant_op, op1, op2; int i; for (i = 0; i < n_elts; ++i) { x = XVECEXP (vals, 0, i); if (!CONSTANT_P (x)) ++n_var; } if (n_var == 0) { /* Load from constant pool. */ emit_move_insn (target, gen_rtx_CONST_VECTOR (mode, XVEC (vals, 0))); return; } if (n_var == 2) { /* The vector is initialized only with non-constants. */ new_rtx = gen_rtx_VEC_CONCAT (V2SFmode, XVECEXP (vals, 0, 0), XVECEXP (vals, 0, 1)); emit_move_insn (target, new_rtx); return; } /* One field is non-constant and the other one is a constant. Load the constant from the constant pool and use ps_merge instruction to construct the whole vector. */ op1 = XVECEXP (vals, 0, 0); op2 = XVECEXP (vals, 0, 1); constant_op = (CONSTANT_P (op1)) ? op1 : op2; tmp = gen_reg_rtx (GET_MODE (constant_op)); emit_move_insn (tmp, constant_op); if (CONSTANT_P (op1)) new_rtx = gen_rtx_VEC_CONCAT (V2SFmode, tmp, op2); else new_rtx = gen_rtx_VEC_CONCAT (V2SFmode, op1, tmp); emit_move_insn (target, new_rtx); } void paired_expand_vector_move (rtx operands[]) { rtx op0 = operands[0], op1 = operands[1]; emit_move_insn (op0, op1); } /* Emit vector compare for code RCODE. DEST is destination, OP1 and OP2 are two VEC_COND_EXPR operands, CC_OP0 and CC_OP1 are the two operands for the relation operation COND. This is a recursive function. */ static void paired_emit_vector_compare (enum rtx_code rcode, rtx dest, rtx op0, rtx op1, rtx cc_op0, rtx cc_op1) { rtx tmp = gen_reg_rtx (V2SFmode); rtx tmp1, max, min, equal_zero; gcc_assert (TARGET_PAIRED_FLOAT); gcc_assert (GET_MODE (op0) == GET_MODE (op1)); switch (rcode) { case LT: case LTU: paired_emit_vector_compare (GE, dest, op1, op0, cc_op0, cc_op1); return; case GE: case GEU: emit_insn (gen_subv2sf3 (tmp, cc_op0, cc_op1)); emit_insn (gen_selv2sf4 (dest, tmp, op0, op1, CONST0_RTX (SFmode))); return; case LE: case LEU: paired_emit_vector_compare (GE, dest, op0, op1, cc_op1, cc_op0); return; case GT: paired_emit_vector_compare (LE, dest, op1, op0, cc_op0, cc_op1); return; case EQ: tmp1 = gen_reg_rtx (V2SFmode); max = gen_reg_rtx (V2SFmode); min = gen_reg_rtx (V2SFmode); equal_zero = gen_reg_rtx (V2SFmode); emit_insn (gen_subv2sf3 (tmp, cc_op0, cc_op1)); emit_insn (gen_selv2sf4 (max, tmp, cc_op0, cc_op1, CONST0_RTX (SFmode))); emit_insn (gen_subv2sf3 (tmp, cc_op1, cc_op0)); emit_insn (gen_selv2sf4 (min, tmp, cc_op0, cc_op1, CONST0_RTX (SFmode))); emit_insn (gen_subv2sf3 (tmp1, min, max)); emit_insn (gen_selv2sf4 (dest, tmp1, op0, op1, CONST0_RTX (SFmode))); return; case NE: paired_emit_vector_compare (EQ, dest, op1, op0, cc_op0, cc_op1); return; case UNLE: paired_emit_vector_compare (LE, dest, op1, op0, cc_op0, cc_op1); return; case UNLT: paired_emit_vector_compare (LT, dest, op1, op0, cc_op0, cc_op1); return; case UNGE: paired_emit_vector_compare (GE, dest, op1, op0, cc_op0, cc_op1); return; case UNGT: paired_emit_vector_compare (GT, dest, op1, op0, cc_op0, cc_op1); return; default: gcc_unreachable (); } return; } /* Emit vector conditional expression. DEST is destination. OP1 and OP2 are two VEC_COND_EXPR operands. CC_OP0 and CC_OP1 are the two operands for the relation operation COND. */ int paired_emit_vector_cond_expr (rtx dest, rtx op1, rtx op2, rtx cond, rtx cc_op0, rtx cc_op1) { enum rtx_code rcode = GET_CODE (cond); if (!TARGET_PAIRED_FLOAT) return 0; paired_emit_vector_compare (rcode, dest, op1, op2, cc_op0, cc_op1); return 1; } /* Initialize vector TARGET to VALS. */ void rs6000_expand_vector_init (rtx target, rtx vals) { enum machine_mode mode = GET_MODE (target); enum machine_mode inner_mode = GET_MODE_INNER (mode); int n_elts = GET_MODE_NUNITS (mode); int n_var = 0, one_var = -1; bool all_same = true, all_const_zero = true; rtx x, mem; int i; for (i = 0; i < n_elts; ++i) { x = XVECEXP (vals, 0, i); if (!CONSTANT_P (x)) ++n_var, one_var = i; else if (x != CONST0_RTX (inner_mode)) all_const_zero = false; if (i > 0 && !rtx_equal_p (x, XVECEXP (vals, 0, 0))) all_same = false; } if (n_var == 0) { rtx const_vec = gen_rtx_CONST_VECTOR (mode, XVEC (vals, 0)); bool int_vector_p = (GET_MODE_CLASS (mode) == MODE_VECTOR_INT); if ((int_vector_p || TARGET_VSX) && all_const_zero) { /* Zero register. */ emit_insn (gen_rtx_SET (VOIDmode, target, gen_rtx_XOR (mode, target, target))); return; } else if (int_vector_p && easy_vector_constant (const_vec, mode)) { /* Splat immediate. */ emit_insn (gen_rtx_SET (VOIDmode, target, const_vec)); return; } else { /* Load from constant pool. */ emit_move_insn (target, const_vec); return; } } /* Double word values on VSX can use xxpermdi or lxvdsx. */ if (VECTOR_MEM_VSX_P (mode) && (mode == V2DFmode || mode == V2DImode)) { if (all_same) { rtx element = XVECEXP (vals, 0, 0); if (mode == V2DFmode) emit_insn (gen_vsx_splat_v2df (target, element)); else emit_insn (gen_vsx_splat_v2di (target, element)); } else { rtx op0 = copy_to_reg (XVECEXP (vals, 0, 0)); rtx op1 = copy_to_reg (XVECEXP (vals, 0, 1)); if (mode == V2DFmode) emit_insn (gen_vsx_concat_v2df (target, op0, op1)); else emit_insn (gen_vsx_concat_v2di (target, op0, op1)); } return; } /* With single precision floating point on VSX, know that internally single precision is actually represented as a double, and either make 2 V2DF vectors, and convert these vectors to single precision, or do one conversion, and splat the result to the other elements. */ if (mode == V4SFmode && VECTOR_MEM_VSX_P (mode)) { if (all_same) { rtx freg = gen_reg_rtx (V4SFmode); rtx sreg = copy_to_reg (XVECEXP (vals, 0, 0)); emit_insn (gen_vsx_xscvdpsp_scalar (freg, sreg)); emit_insn (gen_vsx_xxspltw_v4sf (target, freg, const0_rtx)); } else { rtx dbl_even = gen_reg_rtx (V2DFmode); rtx dbl_odd = gen_reg_rtx (V2DFmode); rtx flt_even = gen_reg_rtx (V4SFmode); rtx flt_odd = gen_reg_rtx (V4SFmode); emit_insn (gen_vsx_concat_v2sf (dbl_even, copy_to_reg (XVECEXP (vals, 0, 0)), copy_to_reg (XVECEXP (vals, 0, 1)))); emit_insn (gen_vsx_concat_v2sf (dbl_odd, copy_to_reg (XVECEXP (vals, 0, 2)), copy_to_reg (XVECEXP (vals, 0, 3)))); emit_insn (gen_vsx_xvcvdpsp (flt_even, dbl_even)); emit_insn (gen_vsx_xvcvdpsp (flt_odd, dbl_odd)); emit_insn (gen_vec_extract_evenv4sf (target, flt_even, flt_odd)); } return; } /* Store value to stack temp. Load vector element. Splat. However, splat of 64-bit items is not supported on Altivec. */ if (all_same && GET_MODE_SIZE (mode) <= 4) { mem = assign_stack_temp (mode, GET_MODE_SIZE (inner_mode), 0); emit_move_insn (adjust_address_nv (mem, inner_mode, 0), XVECEXP (vals, 0, 0)); x = gen_rtx_UNSPEC (VOIDmode, gen_rtvec (1, const0_rtx), UNSPEC_LVE); emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, gen_rtx_SET (VOIDmode, target, mem), x))); x = gen_rtx_VEC_SELECT (inner_mode, target, gen_rtx_PARALLEL (VOIDmode, gen_rtvec (1, const0_rtx))); emit_insn (gen_rtx_SET (VOIDmode, target, gen_rtx_VEC_DUPLICATE (mode, x))); return; } /* One field is non-constant. Load constant then overwrite varying field. */ if (n_var == 1) { rtx copy = copy_rtx (vals); /* Load constant part of vector, substitute neighboring value for varying element. */ XVECEXP (copy, 0, one_var) = XVECEXP (vals, 0, (one_var + 1) % n_elts); rs6000_expand_vector_init (target, copy); /* Insert variable. */ rs6000_expand_vector_set (target, XVECEXP (vals, 0, one_var), one_var); return; } /* Construct the vector in memory one field at a time and load the whole vector. */ mem = assign_stack_temp (mode, GET_MODE_SIZE (mode), 0); for (i = 0; i < n_elts; i++) emit_move_insn (adjust_address_nv (mem, inner_mode, i * GET_MODE_SIZE (inner_mode)), XVECEXP (vals, 0, i)); emit_move_insn (target, mem); } /* Set field ELT of TARGET to VAL. */ void rs6000_expand_vector_set (rtx target, rtx val, int elt) { enum machine_mode mode = GET_MODE (target); enum machine_mode inner_mode = GET_MODE_INNER (mode); rtx reg = gen_reg_rtx (mode); rtx mask, mem, x; int width = GET_MODE_SIZE (inner_mode); int i; if (VECTOR_MEM_VSX_P (mode) && (mode == V2DFmode || mode == V2DImode)) { rtx (*set_func) (rtx, rtx, rtx, rtx) = ((mode == V2DFmode) ? gen_vsx_set_v2df : gen_vsx_set_v2di); emit_insn (set_func (target, target, val, GEN_INT (elt))); return; } /* Load single variable value. */ mem = assign_stack_temp (mode, GET_MODE_SIZE (inner_mode), 0); emit_move_insn (adjust_address_nv (mem, inner_mode, 0), val); x = gen_rtx_UNSPEC (VOIDmode, gen_rtvec (1, const0_rtx), UNSPEC_LVE); emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, gen_rtx_SET (VOIDmode, reg, mem), x))); /* Linear sequence. */ mask = gen_rtx_PARALLEL (V16QImode, rtvec_alloc (16)); for (i = 0; i < 16; ++i) XVECEXP (mask, 0, i) = GEN_INT (i); /* Set permute mask to insert element into target. */ for (i = 0; i < width; ++i) XVECEXP (mask, 0, elt*width + i) = GEN_INT (i + 0x10); x = gen_rtx_CONST_VECTOR (V16QImode, XVEC (mask, 0)); x = gen_rtx_UNSPEC (mode, gen_rtvec (3, target, reg, force_reg (V16QImode, x)), UNSPEC_VPERM); emit_insn (gen_rtx_SET (VOIDmode, target, x)); } /* Extract field ELT from VEC into TARGET. */ void rs6000_expand_vector_extract (rtx target, rtx vec, int elt) { enum machine_mode mode = GET_MODE (vec); enum machine_mode inner_mode = GET_MODE_INNER (mode); rtx mem, x; if (VECTOR_MEM_VSX_P (mode) && (mode == V2DFmode || mode == V2DImode)) { rtx (*extract_func) (rtx, rtx, rtx) = ((mode == V2DFmode) ? gen_vsx_extract_v2df : gen_vsx_extract_v2di); emit_insn (extract_func (target, vec, GEN_INT (elt))); return; } /* Allocate mode-sized buffer. */ mem = assign_stack_temp (mode, GET_MODE_SIZE (mode), 0); /* Add offset to field within buffer matching vector element. */ mem = adjust_address_nv (mem, mode, elt * GET_MODE_SIZE (inner_mode)); /* Store single field into mode-sized buffer. */ x = gen_rtx_UNSPEC (VOIDmode, gen_rtvec (1, const0_rtx), UNSPEC_STVE); emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, gen_rtx_SET (VOIDmode, mem, vec), x))); emit_move_insn (target, adjust_address_nv (mem, inner_mode, 0)); } /* Generates shifts and masks for a pair of rldicl or rldicr insns to implement ANDing by the mask IN. */ void build_mask64_2_operands (rtx in, rtx *out) { #if HOST_BITS_PER_WIDE_INT >= 64 unsigned HOST_WIDE_INT c, lsb, m1, m2; int shift; gcc_assert (GET_CODE (in) == CONST_INT); c = INTVAL (in); if (c & 1) { /* Assume c initially something like 0x00fff000000fffff. The idea is to rotate the word so that the middle ^^^^^^ group of zeros is at the MS end and can be cleared with an rldicl mask. We then rotate back and clear off the MS ^^ group of zeros with a second rldicl. */ c = ~c; /* c == 0xff000ffffff00000 */ lsb = c & -c; /* lsb == 0x0000000000100000 */ m1 = -lsb; /* m1 == 0xfffffffffff00000 */ c = ~c; /* c == 0x00fff000000fffff */ c &= -lsb; /* c == 0x00fff00000000000 */ lsb = c & -c; /* lsb == 0x0000100000000000 */ c = ~c; /* c == 0xff000fffffffffff */ c &= -lsb; /* c == 0xff00000000000000 */ shift = 0; while ((lsb >>= 1) != 0) shift++; /* shift == 44 on exit from loop */ m1 <<= 64 - shift; /* m1 == 0xffffff0000000000 */ m1 = ~m1; /* m1 == 0x000000ffffffffff */ m2 = ~c; /* m2 == 0x00ffffffffffffff */ } else { /* Assume c initially something like 0xff000f0000000000. The idea is to rotate the word so that the ^^^ middle group of zeros is at the LS end and can be cleared with an rldicr mask. We then rotate back and clear off the LS group of ^^^^^^^^^^ zeros with a second rldicr. */ lsb = c & -c; /* lsb == 0x0000010000000000 */ m2 = -lsb; /* m2 == 0xffffff0000000000 */ c = ~c; /* c == 0x00fff0ffffffffff */ c &= -lsb; /* c == 0x00fff00000000000 */ lsb = c & -c; /* lsb == 0x0000100000000000 */ c = ~c; /* c == 0xff000fffffffffff */ c &= -lsb; /* c == 0xff00000000000000 */ shift = 0; while ((lsb >>= 1) != 0) shift++; /* shift == 44 on exit from loop */ m1 = ~c; /* m1 == 0x00ffffffffffffff */ m1 >>= shift; /* m1 == 0x0000000000000fff */ m1 = ~m1; /* m1 == 0xfffffffffffff000 */ } /* Note that when we only have two 0->1 and 1->0 transitions, one of the masks will be all 1's. We are guaranteed more than one transition. */ out[0] = GEN_INT (64 - shift); out[1] = GEN_INT (m1); out[2] = GEN_INT (shift); out[3] = GEN_INT (m2); #else (void)in; (void)out; gcc_unreachable (); #endif } /* Return TRUE if OP is an invalid SUBREG operation on the e500. */ bool invalid_e500_subreg (rtx op, enum machine_mode mode) { if (TARGET_E500_DOUBLE) { /* Reject (subreg:SI (reg:DF)); likewise with subreg:DI or subreg:TI and reg:TF. Decimal float modes are like integer modes (only low part of each register used) for this purpose. */ if (GET_CODE (op) == SUBREG && (mode == SImode || mode == DImode || mode == TImode || mode == DDmode || mode == TDmode) && REG_P (SUBREG_REG (op)) && (GET_MODE (SUBREG_REG (op)) == DFmode || GET_MODE (SUBREG_REG (op)) == TFmode)) return true; /* Reject (subreg:DF (reg:DI)); likewise with subreg:TF and reg:TI. */ if (GET_CODE (op) == SUBREG && (mode == DFmode || mode == TFmode) && REG_P (SUBREG_REG (op)) && (GET_MODE (SUBREG_REG (op)) == DImode || GET_MODE (SUBREG_REG (op)) == TImode || GET_MODE (SUBREG_REG (op)) == DDmode || GET_MODE (SUBREG_REG (op)) == TDmode)) return true; } if (TARGET_SPE && GET_CODE (op) == SUBREG && mode == SImode && REG_P (SUBREG_REG (op)) && SPE_VECTOR_MODE (GET_MODE (SUBREG_REG (op)))) return true; return false; } /* AIX increases natural record alignment to doubleword if the first field is an FP double while the FP fields remain word aligned. */ unsigned int rs6000_special_round_type_align (tree type, unsigned int computed, unsigned int specified) { unsigned int align = MAX (computed, specified); tree field = TYPE_FIELDS (type); /* Skip all non field decls */ while (field != NULL && TREE_CODE (field) != FIELD_DECL) field = TREE_CHAIN (field); if (field != NULL && field != type) { type = TREE_TYPE (field); while (TREE_CODE (type) == ARRAY_TYPE) type = TREE_TYPE (type); if (type != error_mark_node && TYPE_MODE (type) == DFmode) align = MAX (align, 64); } return align; } /* Darwin increases record alignment to the natural alignment of the first field. */ unsigned int darwin_rs6000_special_round_type_align (tree type, unsigned int computed, unsigned int specified) { unsigned int align = MAX (computed, specified); if (TYPE_PACKED (type)) return align; /* Find the first field, looking down into aggregates. */ do { tree field = TYPE_FIELDS (type); /* Skip all non field decls */ while (field != NULL && TREE_CODE (field) != FIELD_DECL) field = TREE_CHAIN (field); if (! field) break; /* A packed field does not contribute any extra alignment. */ if (DECL_PACKED (field)) return align; type = TREE_TYPE (field); while (TREE_CODE (type) == ARRAY_TYPE) type = TREE_TYPE (type); } while (AGGREGATE_TYPE_P (type)); if (! AGGREGATE_TYPE_P (type) && type != error_mark_node) align = MAX (align, TYPE_ALIGN (type)); return align; } /* Return 1 for an operand in small memory on V.4/eabi. */ int small_data_operand (rtx op ATTRIBUTE_UNUSED, enum machine_mode mode ATTRIBUTE_UNUSED) { #if TARGET_ELF rtx sym_ref; if (rs6000_sdata == SDATA_NONE || rs6000_sdata == SDATA_DATA) return 0; if (DEFAULT_ABI != ABI_V4) return 0; /* Vector and float memory instructions have a limited offset on the SPE, so using a vector or float variable directly as an operand is not useful. */ if (TARGET_SPE && (SPE_VECTOR_MODE (mode) || FLOAT_MODE_P (mode))) return 0; if (GET_CODE (op) == SYMBOL_REF) sym_ref = op; else if (GET_CODE (op) != CONST || GET_CODE (XEXP (op, 0)) != PLUS || GET_CODE (XEXP (XEXP (op, 0), 0)) != SYMBOL_REF || GET_CODE (XEXP (XEXP (op, 0), 1)) != CONST_INT) return 0; else { rtx sum = XEXP (op, 0); HOST_WIDE_INT summand; /* We have to be careful here, because it is the referenced address that must be 32k from _SDA_BASE_, not just the symbol. */ summand = INTVAL (XEXP (sum, 1)); if (summand < 0 || (unsigned HOST_WIDE_INT) summand > g_switch_value) return 0; sym_ref = XEXP (sum, 0); } return SYMBOL_REF_SMALL_P (sym_ref); #else return 0; #endif } /* Return true if either operand is a general purpose register. */ bool gpr_or_gpr_p (rtx op0, rtx op1) { return ((REG_P (op0) && INT_REGNO_P (REGNO (op0))) || (REG_P (op1) && INT_REGNO_P (REGNO (op1)))); } /* Subroutines of rs6000_legitimize_address and rs6000_legitimate_address_p. */ static bool reg_offset_addressing_ok_p (enum machine_mode mode) { switch (mode) { case V16QImode: case V8HImode: case V4SFmode: case V4SImode: case V2DFmode: case V2DImode: /* AltiVec/VSX vector modes. Only reg+reg addressing is valid. */ if (VECTOR_MEM_ALTIVEC_OR_VSX_P (mode)) return false; break; case V4HImode: case V2SImode: case V1DImode: case V2SFmode: /* Paired vector modes. Only reg+reg addressing is valid. */ if (TARGET_PAIRED_FLOAT) return false; break; default: break; } return true; } static bool virtual_stack_registers_memory_p (rtx op) { int regnum; if (GET_CODE (op) == REG) regnum = REGNO (op); else if (GET_CODE (op) == PLUS && GET_CODE (XEXP (op, 0)) == REG && GET_CODE (XEXP (op, 1)) == CONST_INT) regnum = REGNO (XEXP (op, 0)); else return false; return (regnum >= FIRST_VIRTUAL_REGISTER && regnum <= LAST_VIRTUAL_REGISTER); } static bool constant_pool_expr_p (rtx op) { rtx base, offset; split_const (op, &base, &offset); return (GET_CODE (base) == SYMBOL_REF && CONSTANT_POOL_ADDRESS_P (base) && ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (get_pool_constant (base), Pmode)); } bool toc_relative_expr_p (rtx op) { rtx base, offset; if (GET_CODE (op) != CONST) return false; split_const (op, &base, &offset); return (GET_CODE (base) == UNSPEC && XINT (base, 1) == UNSPEC_TOCREL); } bool legitimate_constant_pool_address_p (rtx x) { return (TARGET_TOC && GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == REG && (TARGET_MINIMAL_TOC || REGNO (XEXP (x, 0)) == TOC_REGISTER) && toc_relative_expr_p (XEXP (x, 1))); } static bool legitimate_small_data_p (enum machine_mode mode, rtx x) { return (DEFAULT_ABI == ABI_V4 && !flag_pic && !TARGET_TOC && (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == CONST) && small_data_operand (x, mode)); } /* SPE offset addressing is limited to 5-bits worth of double words. */ #define SPE_CONST_OFFSET_OK(x) (((x) & ~0xf8) == 0) bool rs6000_legitimate_offset_address_p (enum machine_mode mode, rtx x, int strict) { unsigned HOST_WIDE_INT offset, extra; if (GET_CODE (x) != PLUS) return false; if (GET_CODE (XEXP (x, 0)) != REG) return false; if (!INT_REG_OK_FOR_BASE_P (XEXP (x, 0), strict)) return false; if (!reg_offset_addressing_ok_p (mode)) return virtual_stack_registers_memory_p (x); if (legitimate_constant_pool_address_p (x)) return true; if (GET_CODE (XEXP (x, 1)) != CONST_INT) return false; offset = INTVAL (XEXP (x, 1)); extra = 0; switch (mode) { case V4HImode: case V2SImode: case V1DImode: case V2SFmode: /* SPE vector modes. */ return SPE_CONST_OFFSET_OK (offset); case DFmode: if (TARGET_E500_DOUBLE) return SPE_CONST_OFFSET_OK (offset); /* If we are using VSX scalar loads, restrict ourselves to reg+reg addressing. */ if (VECTOR_MEM_VSX_P (DFmode)) return false; case DDmode: case DImode: /* On e500v2, we may have: (subreg:DF (mem:DI (plus (reg) (const_int))) 0). Which gets addressed with evldd instructions. */ if (TARGET_E500_DOUBLE) return SPE_CONST_OFFSET_OK (offset); if (mode == DFmode || mode == DDmode || !TARGET_POWERPC64) extra = 4; else if (offset & 3) return false; break; case TFmode: if (TARGET_E500_DOUBLE) return (SPE_CONST_OFFSET_OK (offset) && SPE_CONST_OFFSET_OK (offset + 8)); case TDmode: case TImode: if (mode == TFmode || mode == TDmode || !TARGET_POWERPC64) extra = 12; else if (offset & 3) return false; else extra = 8; break; default: break; } offset += 0x8000; return (offset < 0x10000) && (offset + extra < 0x10000); } bool legitimate_indexed_address_p (rtx x, int strict) { rtx op0, op1; if (GET_CODE (x) != PLUS) return false; op0 = XEXP (x, 0); op1 = XEXP (x, 1); /* Recognize the rtl generated by reload which we know will later be replaced with proper base and index regs. */ if (!strict && reload_in_progress && (REG_P (op0) || GET_CODE (op0) == PLUS) && REG_P (op1)) return true; return (REG_P (op0) && REG_P (op1) && ((INT_REG_OK_FOR_BASE_P (op0, strict) && INT_REG_OK_FOR_INDEX_P (op1, strict)) || (INT_REG_OK_FOR_BASE_P (op1, strict) && INT_REG_OK_FOR_INDEX_P (op0, strict)))); } bool avoiding_indexed_address_p (enum machine_mode mode) { /* Avoid indexed addressing for modes that have non-indexed load/store instruction forms. */ return (TARGET_AVOID_XFORM && VECTOR_MEM_NONE_P (mode)); } inline bool legitimate_indirect_address_p (rtx x, int strict) { return GET_CODE (x) == REG && INT_REG_OK_FOR_BASE_P (x, strict); } bool macho_lo_sum_memory_operand (rtx x, enum machine_mode mode) { if (!TARGET_MACHO || !flag_pic || mode != SImode || GET_CODE (x) != MEM) return false; x = XEXP (x, 0); if (GET_CODE (x) != LO_SUM) return false; if (GET_CODE (XEXP (x, 0)) != REG) return false; if (!INT_REG_OK_FOR_BASE_P (XEXP (x, 0), 0)) return false; x = XEXP (x, 1); return CONSTANT_P (x); } static bool legitimate_lo_sum_address_p (enum machine_mode mode, rtx x, int strict) { if (GET_CODE (x) != LO_SUM) return false; if (GET_CODE (XEXP (x, 0)) != REG) return false; if (!INT_REG_OK_FOR_BASE_P (XEXP (x, 0), strict)) return false; /* Restrict addressing for DI because of our SUBREG hackery. */ if (TARGET_E500_DOUBLE && (mode == DFmode || mode == TFmode || mode == DDmode || mode == TDmode || mode == DImode)) return false; x = XEXP (x, 1); if (TARGET_ELF || TARGET_MACHO) { if (DEFAULT_ABI != ABI_AIX && DEFAULT_ABI != ABI_DARWIN && flag_pic) return false; if (TARGET_TOC) return false; if (GET_MODE_NUNITS (mode) != 1) return false; if (GET_MODE_BITSIZE (mode) > 64 || (GET_MODE_BITSIZE (mode) > 32 && !TARGET_POWERPC64 && !(TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT && (mode == DFmode || mode == DDmode)))) return false; return CONSTANT_P (x); } return false; } /* Try machine-dependent ways of modifying an illegitimate address to be legitimate. If we find one, return the new, valid address. This is used from only one place: `memory_address' in explow.c. OLDX is the address as it was before break_out_memory_refs was called. In some cases it is useful to look at this to decide what needs to be done. It is always safe for this function to do nothing. It exists to recognize opportunities to optimize the output. On RS/6000, first check for the sum of a register with a constant integer that is out of range. If so, generate code to add the constant with the low-order 16 bits masked to the register and force this result into another register (this can be done with `cau'). Then generate an address of REG+(CONST&0xffff), allowing for the possibility of bit 16 being a one. Then check for the sum of a register and something not constant, try to load the other things into a register and return the sum. */ static rtx rs6000_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, enum machine_mode mode) { unsigned int extra = 0; if (!reg_offset_addressing_ok_p (mode)) { if (virtual_stack_registers_memory_p (x)) return x; /* In theory we should not be seeing addresses of the form reg+0, but just in case it is generated, optimize it away. */ if (GET_CODE (x) == PLUS && XEXP (x, 1) == const0_rtx) return force_reg (Pmode, XEXP (x, 0)); /* Make sure both operands are registers. */ else if (GET_CODE (x) == PLUS) return gen_rtx_PLUS (Pmode, force_reg (Pmode, XEXP (x, 0)), force_reg (Pmode, XEXP (x, 1))); else return force_reg (Pmode, x); } if (GET_CODE (x) == SYMBOL_REF) { enum tls_model model = SYMBOL_REF_TLS_MODEL (x); if (model != 0) return rs6000_legitimize_tls_address (x, model); } switch (mode) { case DFmode: case DDmode: extra = 4; break; case DImode: if (!TARGET_POWERPC64) extra = 4; break; case TFmode: case TDmode: extra = 12; break; case TImode: extra = TARGET_POWERPC64 ? 8 : 12; break; default: break; } if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == REG && GET_CODE (XEXP (x, 1)) == CONST_INT && ((unsigned HOST_WIDE_INT) (INTVAL (XEXP (x, 1)) + 0x8000) >= 0x10000 - extra) && !((TARGET_POWERPC64 && (mode == DImode || mode == TImode) && (INTVAL (XEXP (x, 1)) & 3) != 0) || SPE_VECTOR_MODE (mode) || (TARGET_E500_DOUBLE && (mode == DFmode || mode == TFmode || mode == DImode || mode == DDmode || mode == TDmode)))) { HOST_WIDE_INT high_int, low_int; rtx sum; low_int = ((INTVAL (XEXP (x, 1)) & 0xffff) ^ 0x8000) - 0x8000; if (low_int >= 0x8000 - extra) low_int = 0; high_int = INTVAL (XEXP (x, 1)) - low_int; sum = force_operand (gen_rtx_PLUS (Pmode, XEXP (x, 0), GEN_INT (high_int)), 0); return plus_constant (sum, low_int); } else if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == REG && GET_CODE (XEXP (x, 1)) != CONST_INT && GET_MODE_NUNITS (mode) == 1 && ((TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT) || TARGET_POWERPC64 || ((mode != DImode && mode != DFmode && mode != DDmode) || (TARGET_E500_DOUBLE && mode != DDmode))) && (TARGET_POWERPC64 || mode != DImode) && !avoiding_indexed_address_p (mode) && mode != TImode && mode != TFmode && mode != TDmode) { return gen_rtx_PLUS (Pmode, XEXP (x, 0), force_reg (Pmode, force_operand (XEXP (x, 1), 0))); } else if (SPE_VECTOR_MODE (mode) || (TARGET_E500_DOUBLE && (mode == DFmode || mode == TFmode || mode == DDmode || mode == TDmode || mode == DImode))) { if (mode == DImode) return x; /* We accept [reg + reg] and [reg + OFFSET]. */ if (GET_CODE (x) == PLUS) { rtx op1 = XEXP (x, 0); rtx op2 = XEXP (x, 1); rtx y; op1 = force_reg (Pmode, op1); if (GET_CODE (op2) != REG && (GET_CODE (op2) != CONST_INT || !SPE_CONST_OFFSET_OK (INTVAL (op2)) || (GET_MODE_SIZE (mode) > 8 && !SPE_CONST_OFFSET_OK (INTVAL (op2) + 8)))) op2 = force_reg (Pmode, op2); /* We can't always do [reg + reg] for these, because [reg + reg + offset] is not a legitimate addressing mode. */ y = gen_rtx_PLUS (Pmode, op1, op2); if ((GET_MODE_SIZE (mode) > 8 || mode == DDmode) && REG_P (op2)) return force_reg (Pmode, y); else return y; } return force_reg (Pmode, x); } else if (TARGET_ELF && TARGET_32BIT && TARGET_NO_TOC && ! flag_pic && GET_CODE (x) != CONST_INT && GET_CODE (x) != CONST_DOUBLE && CONSTANT_P (x) && GET_MODE_NUNITS (mode) == 1 && (GET_MODE_BITSIZE (mode) <= 32 || ((TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT) && (mode == DFmode || mode == DDmode)))) { rtx reg = gen_reg_rtx (Pmode); emit_insn (gen_elf_high (reg, x)); return gen_rtx_LO_SUM (Pmode, reg, x); } else if (TARGET_MACHO && TARGET_32BIT && TARGET_NO_TOC && ! flag_pic #if TARGET_MACHO && ! MACHO_DYNAMIC_NO_PIC_P #endif && GET_CODE (x) != CONST_INT && GET_CODE (x) != CONST_DOUBLE && CONSTANT_P (x) && GET_MODE_NUNITS (mode) == 1 && ((TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT) || (mode != DFmode && mode != DDmode)) && mode != DImode && mode != TImode) { rtx reg = gen_reg_rtx (Pmode); emit_insn (gen_macho_high (reg, x)); return gen_rtx_LO_SUM (Pmode, reg, x); } else if (TARGET_TOC && GET_CODE (x) == SYMBOL_REF && constant_pool_expr_p (x) && ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (get_pool_constant (x), Pmode)) { return create_TOC_reference (x); } else return x; } /* Debug version of rs6000_legitimize_address. */ static rtx rs6000_debug_legitimize_address (rtx x, rtx oldx, enum machine_mode mode) { rtx ret; rtx insns; start_sequence (); ret = rs6000_legitimize_address (x, oldx, mode); insns = get_insns (); end_sequence (); if (ret != x) { fprintf (stderr, "\nrs6000_legitimize_address: mode %s, old code %s, " "new code %s, modified\n", GET_MODE_NAME (mode), GET_RTX_NAME (GET_CODE (x)), GET_RTX_NAME (GET_CODE (ret))); fprintf (stderr, "Original address:\n"); debug_rtx (x); fprintf (stderr, "oldx:\n"); debug_rtx (oldx); fprintf (stderr, "New address:\n"); debug_rtx (ret); if (insns) { fprintf (stderr, "Insns added:\n"); debug_rtx_list (insns, 20); } } else { fprintf (stderr, "\nrs6000_legitimize_address: mode %s, code %s, no change:\n", GET_MODE_NAME (mode), GET_RTX_NAME (GET_CODE (x))); debug_rtx (x); } if (insns) emit_insn (insns); return ret; } /* This is called from dwarf2out.c via TARGET_ASM_OUTPUT_DWARF_DTPREL. We need to emit DTP-relative relocations. */ static void rs6000_output_dwarf_dtprel (FILE *file, int size, rtx x) { switch (size) { case 4: fputs ("\t.long\t", file); break; case 8: fputs (DOUBLE_INT_ASM_OP, file); break; default: gcc_unreachable (); } output_addr_const (file, x); fputs ("@dtprel+0x8000", file); } /* In the name of slightly smaller debug output, and to cater to general assembler lossage, recognize various UNSPEC sequences and turn them back into a direct symbol reference. */ static rtx rs6000_delegitimize_address (rtx orig_x) { rtx x, y; orig_x = delegitimize_mem_from_attrs (orig_x); x = orig_x; if (MEM_P (x)) x = XEXP (x, 0); if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 1)) == CONST && GET_CODE (XEXP (x, 0)) == REG && REGNO (XEXP (x, 0)) == TOC_REGISTER) { y = XEXP (XEXP (x, 1), 0); if (GET_CODE (y) == UNSPEC && XINT (y, 1) == UNSPEC_TOCREL) { y = XVECEXP (y, 0, 0); if (!MEM_P (orig_x)) return y; else return replace_equiv_address_nv (orig_x, y); } return orig_x; } if (TARGET_MACHO && GET_CODE (orig_x) == LO_SUM && GET_CODE (XEXP (x, 1)) == CONST) { y = XEXP (XEXP (x, 1), 0); if (GET_CODE (y) == UNSPEC && XINT (y, 1) == UNSPEC_MACHOPIC_OFFSET) return XVECEXP (y, 0, 0); } return orig_x; } /* Construct the SYMBOL_REF for the tls_get_addr function. */ static GTY(()) rtx rs6000_tls_symbol; static rtx rs6000_tls_get_addr (void) { if (!rs6000_tls_symbol) rs6000_tls_symbol = init_one_libfunc ("__tls_get_addr"); return rs6000_tls_symbol; } /* Construct the SYMBOL_REF for TLS GOT references. */ static GTY(()) rtx rs6000_got_symbol; static rtx rs6000_got_sym (void) { if (!rs6000_got_symbol) { rs6000_got_symbol = gen_rtx_SYMBOL_REF (Pmode, "_GLOBAL_OFFSET_TABLE_"); SYMBOL_REF_FLAGS (rs6000_got_symbol) |= SYMBOL_FLAG_LOCAL; SYMBOL_REF_FLAGS (rs6000_got_symbol) |= SYMBOL_FLAG_EXTERNAL; } return rs6000_got_symbol; } /* ADDR contains a thread-local SYMBOL_REF. Generate code to compute this (thread-local) address. */ static rtx rs6000_legitimize_tls_address (rtx addr, enum tls_model model) { rtx dest, insn; dest = gen_reg_rtx (Pmode); if (model == TLS_MODEL_LOCAL_EXEC && rs6000_tls_size == 16) { rtx tlsreg; if (TARGET_64BIT) { tlsreg = gen_rtx_REG (Pmode, 13); insn = gen_tls_tprel_64 (dest, tlsreg, addr); } else { tlsreg = gen_rtx_REG (Pmode, 2); insn = gen_tls_tprel_32 (dest, tlsreg, addr); } emit_insn (insn); } else if (model == TLS_MODEL_LOCAL_EXEC && rs6000_tls_size == 32) { rtx tlsreg, tmp; tmp = gen_reg_rtx (Pmode); if (TARGET_64BIT) { tlsreg = gen_rtx_REG (Pmode, 13); insn = gen_tls_tprel_ha_64 (tmp, tlsreg, addr); } else { tlsreg = gen_rtx_REG (Pmode, 2); insn = gen_tls_tprel_ha_32 (tmp, tlsreg, addr); } emit_insn (insn); if (TARGET_64BIT) insn = gen_tls_tprel_lo_64 (dest, tmp, addr); else insn = gen_tls_tprel_lo_32 (dest, tmp, addr); emit_insn (insn); } else { rtx r3, got, tga, tmp1, tmp2, eqv; /* We currently use relocations like @got@tlsgd for tls, which means the linker will handle allocation of tls entries, placing them in the .got section. So use a pointer to the .got section, not one to secondary TOC sections used by 64-bit -mminimal-toc, or to secondary GOT sections used by 32-bit -fPIC. */ if (TARGET_64BIT) got = gen_rtx_REG (Pmode, 2); else { if (flag_pic == 1) got = gen_rtx_REG (Pmode, RS6000_PIC_OFFSET_TABLE_REGNUM); else { rtx gsym = rs6000_got_sym (); got = gen_reg_rtx (Pmode); if (flag_pic == 0) rs6000_emit_move (got, gsym, Pmode); else { rtx mem, lab, last; tmp1 = gen_reg_rtx (Pmode); tmp2 = gen_reg_rtx (Pmode); mem = gen_const_mem (Pmode, tmp1); lab = gen_label_rtx (); emit_insn (gen_load_toc_v4_PIC_1b (gsym, lab)); emit_move_insn (tmp1, gen_rtx_REG (Pmode, LR_REGNO)); emit_move_insn (tmp2, mem); last = emit_insn (gen_addsi3 (got, tmp1, tmp2)); set_unique_reg_note (last, REG_EQUAL, gsym); } } } if (model == TLS_MODEL_GLOBAL_DYNAMIC) { r3 = gen_rtx_REG (Pmode, 3); tga = rs6000_tls_get_addr (); if (DEFAULT_ABI == ABI_AIX && TARGET_64BIT) insn = gen_tls_gd_aix64 (r3, got, addr, tga, const0_rtx); else if (DEFAULT_ABI == ABI_AIX && !TARGET_64BIT) insn = gen_tls_gd_aix32 (r3, got, addr, tga, const0_rtx); else if (DEFAULT_ABI == ABI_V4) insn = gen_tls_gd_sysvsi (r3, got, addr, tga, const0_rtx); else gcc_unreachable (); start_sequence (); insn = emit_call_insn (insn); RTL_CONST_CALL_P (insn) = 1; use_reg (&CALL_INSN_FUNCTION_USAGE (insn), r3); if (DEFAULT_ABI == ABI_V4 && TARGET_SECURE_PLT && flag_pic) use_reg (&CALL_INSN_FUNCTION_USAGE (insn), pic_offset_table_rtx); insn = get_insns (); end_sequence (); emit_libcall_block (insn, dest, r3, addr); } else if (model == TLS_MODEL_LOCAL_DYNAMIC) { r3 = gen_rtx_REG (Pmode, 3); tga = rs6000_tls_get_addr (); if (DEFAULT_ABI == ABI_AIX && TARGET_64BIT) insn = gen_tls_ld_aix64 (r3, got, tga, const0_rtx); else if (DEFAULT_ABI == ABI_AIX && !TARGET_64BIT) insn = gen_tls_ld_aix32 (r3, got, tga, const0_rtx); else if (DEFAULT_ABI == ABI_V4) insn = gen_tls_ld_sysvsi (r3, got, tga, const0_rtx); else gcc_unreachable (); start_sequence (); insn = emit_call_insn (insn); RTL_CONST_CALL_P (insn) = 1; use_reg (&CALL_INSN_FUNCTION_USAGE (insn), r3); if (DEFAULT_ABI == ABI_V4 && TARGET_SECURE_PLT && flag_pic) use_reg (&CALL_INSN_FUNCTION_USAGE (insn), pic_offset_table_rtx); insn = get_insns (); end_sequence (); tmp1 = gen_reg_rtx (Pmode); eqv = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, const0_rtx), UNSPEC_TLSLD); emit_libcall_block (insn, tmp1, r3, eqv); if (rs6000_tls_size == 16) { if (TARGET_64BIT) insn = gen_tls_dtprel_64 (dest, tmp1, addr); else insn = gen_tls_dtprel_32 (dest, tmp1, addr); } else if (rs6000_tls_size == 32) { tmp2 = gen_reg_rtx (Pmode); if (TARGET_64BIT) insn = gen_tls_dtprel_ha_64 (tmp2, tmp1, addr); else insn = gen_tls_dtprel_ha_32 (tmp2, tmp1, addr); emit_insn (insn); if (TARGET_64BIT) insn = gen_tls_dtprel_lo_64 (dest, tmp2, addr); else insn = gen_tls_dtprel_lo_32 (dest, tmp2, addr); } else { tmp2 = gen_reg_rtx (Pmode); if (TARGET_64BIT) insn = gen_tls_got_dtprel_64 (tmp2, got, addr); else insn = gen_tls_got_dtprel_32 (tmp2, got, addr); emit_insn (insn); insn = gen_rtx_SET (Pmode, dest, gen_rtx_PLUS (Pmode, tmp2, tmp1)); } emit_insn (insn); } else { /* IE, or 64-bit offset LE. */ tmp2 = gen_reg_rtx (Pmode); if (TARGET_64BIT) insn = gen_tls_got_tprel_64 (tmp2, got, addr); else insn = gen_tls_got_tprel_32 (tmp2, got, addr); emit_insn (insn); if (TARGET_64BIT) insn = gen_tls_tls_64 (dest, tmp2, addr); else insn = gen_tls_tls_32 (dest, tmp2, addr); emit_insn (insn); } } return dest; } /* Return 1 if X contains a thread-local symbol. */ bool rs6000_tls_referenced_p (rtx x) { if (! TARGET_HAVE_TLS) return false; return for_each_rtx (&x, &rs6000_tls_symbol_ref_1, 0); } /* Return 1 if *X is a thread-local symbol. This is the same as rs6000_tls_symbol_ref except for the type of the unused argument. */ static int rs6000_tls_symbol_ref_1 (rtx *x, void *data ATTRIBUTE_UNUSED) { return RS6000_SYMBOL_REF_TLS_P (*x); } /* Our implementation of LEGITIMIZE_RELOAD_ADDRESS. Returns a value to replace the input X, or the original X if no replacement is called for. The output parameter *WIN is 1 if the calling macro should goto WIN, 0 if it should not. For RS/6000, we wish to handle large displacements off a base register by splitting the addend across an addiu/addis and the mem insn. This cuts number of extra insns needed from 3 to 1. On Darwin, we use this to generate code for floating point constants. A movsf_low is generated so we wind up with 2 instructions rather than 3. The Darwin code is inside #if TARGET_MACHO because only then are the machopic_* functions defined. */ static rtx rs6000_legitimize_reload_address (rtx x, enum machine_mode mode, int opnum, int type, int ind_levels ATTRIBUTE_UNUSED, int *win) { bool reg_offset_p = reg_offset_addressing_ok_p (mode); /* We must recognize output that we have already generated ourselves. */ if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == PLUS && GET_CODE (XEXP (XEXP (x, 0), 0)) == REG && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT && GET_CODE (XEXP (x, 1)) == CONST_INT) { push_reload (XEXP (x, 0), NULL_RTX, &XEXP (x, 0), NULL, BASE_REG_CLASS, GET_MODE (x), VOIDmode, 0, 0, opnum, (enum reload_type)type); *win = 1; return x; } #if TARGET_MACHO if (DEFAULT_ABI == ABI_DARWIN && flag_pic && GET_CODE (x) == LO_SUM && GET_CODE (XEXP (x, 0)) == PLUS && XEXP (XEXP (x, 0), 0) == pic_offset_table_rtx && GET_CODE (XEXP (XEXP (x, 0), 1)) == HIGH && XEXP (XEXP (XEXP (x, 0), 1), 0) == XEXP (x, 1) && machopic_operand_p (XEXP (x, 1))) { /* Result of previous invocation of this function on Darwin floating point constant. */ push_reload (XEXP (x, 0), NULL_RTX, &XEXP (x, 0), NULL, BASE_REG_CLASS, Pmode, VOIDmode, 0, 0, opnum, (enum reload_type)type); *win = 1; return x; } #endif /* Force ld/std non-word aligned offset into base register by wrapping in offset 0. */ if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == REG && REGNO (XEXP (x, 0)) < 32 && INT_REG_OK_FOR_BASE_P (XEXP (x, 0), 1) && GET_CODE (XEXP (x, 1)) == CONST_INT && reg_offset_p && (INTVAL (XEXP (x, 1)) & 3) != 0 && VECTOR_MEM_NONE_P (mode) && GET_MODE_SIZE (mode) >= UNITS_PER_WORD && TARGET_POWERPC64) { x = gen_rtx_PLUS (GET_MODE (x), x, GEN_INT (0)); push_reload (XEXP (x, 0), NULL_RTX, &XEXP (x, 0), NULL, BASE_REG_CLASS, GET_MODE (x), VOIDmode, 0, 0, opnum, (enum reload_type) type); *win = 1; return x; } if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == REG && REGNO (XEXP (x, 0)) < FIRST_PSEUDO_REGISTER && INT_REG_OK_FOR_BASE_P (XEXP (x, 0), 1) && GET_CODE (XEXP (x, 1)) == CONST_INT && reg_offset_p && !SPE_VECTOR_MODE (mode) && !(TARGET_E500_DOUBLE && (mode == DFmode || mode == TFmode || mode == DDmode || mode == TDmode || mode == DImode)) && VECTOR_MEM_NONE_P (mode)) { HOST_WIDE_INT val = INTVAL (XEXP (x, 1)); HOST_WIDE_INT low = ((val & 0xffff) ^ 0x8000) - 0x8000; HOST_WIDE_INT high = (((val - low) & 0xffffffff) ^ 0x80000000) - 0x80000000; /* Check for 32-bit overflow. */ if (high + low != val) { *win = 0; return x; } /* Reload the high part into a base reg; leave the low part in the mem directly. */ x = gen_rtx_PLUS (GET_MODE (x), gen_rtx_PLUS (GET_MODE (x), XEXP (x, 0), GEN_INT (high)), GEN_INT (low)); push_reload (XEXP (x, 0), NULL_RTX, &XEXP (x, 0), NULL, BASE_REG_CLASS, GET_MODE (x), VOIDmode, 0, 0, opnum, (enum reload_type)type); *win = 1; return x; } if (GET_CODE (x) == SYMBOL_REF && reg_offset_p && VECTOR_MEM_NONE_P (mode) && !SPE_VECTOR_MODE (mode) #if TARGET_MACHO && DEFAULT_ABI == ABI_DARWIN && (flag_pic || MACHO_DYNAMIC_NO_PIC_P) #else && DEFAULT_ABI == ABI_V4 && !flag_pic #endif /* Don't do this for TFmode or TDmode, since the result isn't offsettable. The same goes for DImode without 64-bit gprs and DFmode and DDmode without fprs. */ && mode != TFmode && mode != TDmode && (mode != DImode || TARGET_POWERPC64) && ((mode != DFmode && mode != DDmode) || TARGET_POWERPC64 || (TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT))) { #if TARGET_MACHO if (flag_pic) { rtx offset = machopic_gen_offset (x); x = gen_rtx_LO_SUM (GET_MODE (x), gen_rtx_PLUS (Pmode, pic_offset_table_rtx, gen_rtx_HIGH (Pmode, offset)), offset); } else #endif x = gen_rtx_LO_SUM (GET_MODE (x), gen_rtx_HIGH (Pmode, x), x); push_reload (XEXP (x, 0), NULL_RTX, &XEXP (x, 0), NULL, BASE_REG_CLASS, Pmode, VOIDmode, 0, 0, opnum, (enum reload_type)type); *win = 1; return x; } /* Reload an offset address wrapped by an AND that represents the masking of the lower bits. Strip the outer AND and let reload convert the offset address into an indirect address. For VSX, force reload to create the address with an AND in a separate register, because we can't guarantee an altivec register will be used. */ if (VECTOR_MEM_ALTIVEC_P (mode) && GET_CODE (x) == AND && GET_CODE (XEXP (x, 0)) == PLUS && GET_CODE (XEXP (XEXP (x, 0), 0)) == REG && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT && GET_CODE (XEXP (x, 1)) == CONST_INT && INTVAL (XEXP (x, 1)) == -16) { x = XEXP (x, 0); *win = 1; return x; } if (TARGET_TOC && reg_offset_p && GET_CODE (x) == SYMBOL_REF && constant_pool_expr_p (x) && ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (get_pool_constant (x), mode)) { x = create_TOC_reference (x); *win = 1; return x; } *win = 0; return x; } /* Debug version of rs6000_legitimize_reload_address. */ static rtx rs6000_debug_legitimize_reload_address (rtx x, enum machine_mode mode, int opnum, int type, int ind_levels, int *win) { rtx ret = rs6000_legitimize_reload_address (x, mode, opnum, type, ind_levels, win); fprintf (stderr, "\nrs6000_legitimize_reload_address: mode = %s, opnum = %d, " "type = %d, ind_levels = %d, win = %d, original addr:\n", GET_MODE_NAME (mode), opnum, type, ind_levels, *win); debug_rtx (x); if (x == ret) fprintf (stderr, "Same address returned\n"); else if (!ret) fprintf (stderr, "NULL returned\n"); else { fprintf (stderr, "New address:\n"); debug_rtx (ret); } return ret; } /* TARGET_LEGITIMATE_ADDRESS_P recognizes an RTL expression that is a valid memory address for an instruction. The MODE argument is the machine mode for the MEM expression that wants to use this address. On the RS/6000, there are four valid address: a SYMBOL_REF that refers to a constant pool entry of an address (or the sum of it plus a constant), a short (16-bit signed) constant plus a register, the sum of two registers, or a register indirect, possibly with an auto-increment. For DFmode, DDmode and DImode with a constant plus register, we must ensure that both words are addressable or PowerPC64 with offset word aligned. For modes spanning multiple registers (DFmode and DDmode in 32-bit GPRs, 32-bit DImode, TImode, TFmode, TDmode), indexed addressing cannot be used because adjacent memory cells are accessed by adding word-sized offsets during assembly output. */ bool rs6000_legitimate_address_p (enum machine_mode mode, rtx x, bool reg_ok_strict) { bool reg_offset_p = reg_offset_addressing_ok_p (mode); /* If this is an unaligned stvx/ldvx type address, discard the outer AND. */ if (VECTOR_MEM_ALTIVEC_P (mode) && GET_CODE (x) == AND && GET_CODE (XEXP (x, 1)) == CONST_INT && INTVAL (XEXP (x, 1)) == -16) x = XEXP (x, 0); if (RS6000_SYMBOL_REF_TLS_P (x)) return 0; if (legitimate_indirect_address_p (x, reg_ok_strict)) return 1; if ((GET_CODE (x) == PRE_INC || GET_CODE (x) == PRE_DEC) && !VECTOR_MEM_ALTIVEC_OR_VSX_P (mode) && !SPE_VECTOR_MODE (mode) && mode != TFmode && mode != TDmode /* Restrict addressing for DI because of our SUBREG hackery. */ && !(TARGET_E500_DOUBLE && (mode == DFmode || mode == DDmode || mode == DImode)) && TARGET_UPDATE && legitimate_indirect_address_p (XEXP (x, 0), reg_ok_strict)) return 1; if (virtual_stack_registers_memory_p (x)) return 1; if (reg_offset_p && legitimate_small_data_p (mode, x)) return 1; if (reg_offset_p && legitimate_constant_pool_address_p (x)) return 1; /* If not REG_OK_STRICT (before reload) let pass any stack offset. */ if (! reg_ok_strict && reg_offset_p && GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 0)) == REG && (XEXP (x, 0) == virtual_stack_vars_rtx || XEXP (x, 0) == arg_pointer_rtx) && GET_CODE (XEXP (x, 1)) == CONST_INT) return 1; if (rs6000_legitimate_offset_address_p (mode, x, reg_ok_strict)) return 1; if (mode != TImode && mode != TFmode && mode != TDmode && ((TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT) || TARGET_POWERPC64 || (mode != DFmode && mode != DDmode) || (TARGET_E500_DOUBLE && mode != DDmode)) && (TARGET_POWERPC64 || mode != DImode) && !avoiding_indexed_address_p (mode) && legitimate_indexed_address_p (x, reg_ok_strict)) return 1; if (GET_CODE (x) == PRE_MODIFY && mode != TImode && mode != TFmode && mode != TDmode && ((TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT) || TARGET_POWERPC64 || ((mode != DFmode && mode != DDmode) || TARGET_E500_DOUBLE)) && (TARGET_POWERPC64 || mode != DImode) && !VECTOR_MEM_ALTIVEC_OR_VSX_P (mode) && !SPE_VECTOR_MODE (mode) /* Restrict addressing for DI because of our SUBREG hackery. */ && !(TARGET_E500_DOUBLE && (mode == DFmode || mode == DDmode || mode == DImode)) && TARGET_UPDATE && legitimate_indirect_address_p (XEXP (x, 0), reg_ok_strict) && (rs6000_legitimate_offset_address_p (mode, XEXP (x, 1), reg_ok_strict) || (!avoiding_indexed_address_p (mode) && legitimate_indexed_address_p (XEXP (x, 1), reg_ok_strict))) && rtx_equal_p (XEXP (XEXP (x, 1), 0), XEXP (x, 0))) return 1; if (reg_offset_p && legitimate_lo_sum_address_p (mode, x, reg_ok_strict)) return 1; return 0; } /* Debug version of rs6000_legitimate_address_p. */ static bool rs6000_debug_legitimate_address_p (enum machine_mode mode, rtx x, bool reg_ok_strict) { bool ret = rs6000_legitimate_address_p (mode, x, reg_ok_strict); fprintf (stderr, "\nrs6000_legitimate_address_p: return = %s, mode = %s, " "strict = %d, code = %s\n", ret ? "true" : "false", GET_MODE_NAME (mode), reg_ok_strict, GET_RTX_NAME (GET_CODE (x))); debug_rtx (x); return ret; } /* Go to LABEL if ADDR (a legitimate address expression) has an effect that depends on the machine mode it is used for. On the RS/6000 this is true of all integral offsets (since AltiVec and VSX modes don't allow them) or is a pre-increment or decrement. ??? Except that due to conceptual problems in offsettable_address_p we can't really report the problems of integral offsets. So leave this assuming that the adjustable offset must be valid for the sub-words of a TFmode operand, which is what we had before. */ static bool rs6000_mode_dependent_address (rtx addr) { switch (GET_CODE (addr)) { case PLUS: /* Any offset from virtual_stack_vars_rtx and arg_pointer_rtx is considered a legitimate address before reload, so there are no offset restrictions in that case. Note that this condition is safe in strict mode because any address involving virtual_stack_vars_rtx or arg_pointer_rtx would already have been rejected as illegitimate. */ if (XEXP (addr, 0) != virtual_stack_vars_rtx && XEXP (addr, 0) != arg_pointer_rtx && GET_CODE (XEXP (addr, 1)) == CONST_INT) { unsigned HOST_WIDE_INT val = INTVAL (XEXP (addr, 1)); return val + 12 + 0x8000 >= 0x10000; } break; case LO_SUM: return true; /* Auto-increment cases are now treated generically in recog.c. */ case PRE_MODIFY: return TARGET_UPDATE; /* AND is only allowed in Altivec loads. */ case AND: return true; default: break; } return false; } /* Debug version of rs6000_mode_dependent_address. */ static bool rs6000_debug_mode_dependent_address (rtx addr) { bool ret = rs6000_mode_dependent_address (addr); fprintf (stderr, "\nrs6000_mode_dependent_address: ret = %s\n", ret ? "true" : "false"); debug_rtx (addr); return ret; } /* Implement FIND_BASE_TERM. */ rtx rs6000_find_base_term (rtx op) { rtx base, offset; split_const (op, &base, &offset); if (GET_CODE (base) == UNSPEC) switch (XINT (base, 1)) { case UNSPEC_TOCREL: case UNSPEC_MACHOPIC_OFFSET: /* OP represents SYM [+ OFFSET] - ANCHOR. SYM is the base term for aliasing purposes. */ return XVECEXP (base, 0, 0); } return op; } /* More elaborate version of recog's offsettable_memref_p predicate that works around the ??? note of rs6000_mode_dependent_address. In particular it accepts (mem:DI (plus:SI (reg/f:SI 31 31) (const_int 32760 [0x7ff8]))) in 32-bit mode, that the recog predicate rejects. */ bool rs6000_offsettable_memref_p (rtx op) { if (!MEM_P (op)) return false; /* First mimic offsettable_memref_p. */ if (offsettable_address_p (1, GET_MODE (op), XEXP (op, 0))) return true; /* offsettable_address_p invokes rs6000_mode_dependent_address, but the latter predicate knows nothing about the mode of the memory reference and, therefore, assumes that it is the largest supported mode (TFmode). As a consequence, legitimate offsettable memory references are rejected. rs6000_legitimate_offset_address_p contains the correct logic for the PLUS case of rs6000_mode_dependent_address. */ return rs6000_legitimate_offset_address_p (GET_MODE (op), XEXP (op, 0), 1); } /* Change register usage conditional on target flags. */ void rs6000_conditional_register_usage (void) { int i; /* Set MQ register fixed (already call_used) if not POWER architecture (RIOS1, RIOS2, RSC, and PPC601) so that it will not be allocated. */ if (! TARGET_POWER) fixed_regs[64] = 1; /* 64-bit AIX and Linux reserve GPR13 for thread-private data. */ if (TARGET_64BIT) fixed_regs[13] = call_used_regs[13] = call_really_used_regs[13] = 1; /* Conditionally disable FPRs. */ if (TARGET_SOFT_FLOAT || !TARGET_FPRS) for (i = 32; i < 64; i++) fixed_regs[i] = call_used_regs[i] = call_really_used_regs[i] = 1; /* The TOC register is not killed across calls in a way that is visible to the compiler. */ if (DEFAULT_ABI == ABI_AIX) call_really_used_regs[2] = 0; if (DEFAULT_ABI == ABI_V4 && PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM && flag_pic == 2) fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1; if (DEFAULT_ABI == ABI_V4 && PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM && flag_pic == 1) fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = call_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = call_really_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1; if (DEFAULT_ABI == ABI_DARWIN && PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM) fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = call_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = call_really_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1; if (TARGET_TOC && TARGET_MINIMAL_TOC) fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = call_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1; if (TARGET_SPE) { global_regs[SPEFSCR_REGNO] = 1; /* We used to use r14 as FIXED_SCRATCH to address SPE 64-bit registers in prologues and epilogues. We no longer use r14 for FIXED_SCRATCH, but we're keeping r14 out of the allocation pool for link-compatibility with older versions of GCC. Once "old" code has died out, we can return r14 to the allocation pool. */ fixed_regs[14] = call_used_regs[14] = call_really_used_regs[14] = 1; } if (!TARGET_ALTIVEC && !TARGET_VSX) { for (i = FIRST_ALTIVEC_REGNO; i <= LAST_ALTIVEC_REGNO; ++i) fixed_regs[i] = call_used_regs[i] = call_really_used_regs[i] = 1; call_really_used_regs[VRSAVE_REGNO] = 1; } if (TARGET_ALTIVEC || TARGET_VSX) global_regs[VSCR_REGNO] = 1; if (TARGET_ALTIVEC_ABI) { for (i = FIRST_ALTIVEC_REGNO; i < FIRST_ALTIVEC_REGNO + 20; ++i) call_used_regs[i] = call_really_used_regs[i] = 1; /* AIX reserves VR20:31 in non-extended ABI mode. */ if (TARGET_XCOFF) for (i = FIRST_ALTIVEC_REGNO + 20; i < FIRST_ALTIVEC_REGNO + 32; ++i) fixed_regs[i] = call_used_regs[i] = call_really_used_regs[i] = 1; } } /* Try to output insns to set TARGET equal to the constant C if it can be done in less than N insns. Do all computations in MODE. Returns the place where the output has been placed if it can be done and the insns have been emitted. If it would take more than N insns, zero is returned and no insns and emitted. */ rtx rs6000_emit_set_const (rtx dest, enum machine_mode mode, rtx source, int n ATTRIBUTE_UNUSED) { rtx result, insn, set; HOST_WIDE_INT c0, c1; switch (mode) { case QImode: case HImode: if (dest == NULL) dest = gen_reg_rtx (mode); emit_insn (gen_rtx_SET (VOIDmode, dest, source)); return dest; case SImode: result = !can_create_pseudo_p () ? dest : gen_reg_rtx (SImode); emit_insn (gen_rtx_SET (VOIDmode, copy_rtx (result), GEN_INT (INTVAL (source) & (~ (HOST_WIDE_INT) 0xffff)))); emit_insn (gen_rtx_SET (VOIDmode, dest, gen_rtx_IOR (SImode, copy_rtx (result), GEN_INT (INTVAL (source) & 0xffff)))); result = dest; break; case DImode: switch (GET_CODE (source)) { case CONST_INT: c0 = INTVAL (source); c1 = -(c0 < 0); break; case CONST_DOUBLE: #if HOST_BITS_PER_WIDE_INT >= 64 c0 = CONST_DOUBLE_LOW (source); c1 = -(c0 < 0); #else c0 = CONST_DOUBLE_LOW (source); c1 = CONST_DOUBLE_HIGH (source); #endif break; default: gcc_unreachable (); } result = rs6000_emit_set_long_const (dest, c0, c1); break; default: gcc_unreachable (); } insn = get_last_insn (); set = single_set (insn); if (! CONSTANT_P (SET_SRC (set))) set_unique_reg_note (insn, REG_EQUAL, source); return result; } /* Having failed to find a 3 insn sequence in rs6000_emit_set_const, fall back to a straight forward decomposition. We do this to avoid exponential run times encountered when looking for longer sequences with rs6000_emit_set_const. */ static rtx rs6000_emit_set_long_const (rtx dest, HOST_WIDE_INT c1, HOST_WIDE_INT c2) { if (!TARGET_POWERPC64) { rtx operand1, operand2; operand1 = operand_subword_force (dest, WORDS_BIG_ENDIAN == 0, DImode); operand2 = operand_subword_force (copy_rtx (dest), WORDS_BIG_ENDIAN != 0, DImode); emit_move_insn (operand1, GEN_INT (c1)); emit_move_insn (operand2, GEN_INT (c2)); } else { HOST_WIDE_INT ud1, ud2, ud3, ud4; ud1 = c1 & 0xffff; ud2 = (c1 & 0xffff0000) >> 16; #if HOST_BITS_PER_WIDE_INT >= 64 c2 = c1 >> 32; #endif ud3 = c2 & 0xffff; ud4 = (c2 & 0xffff0000) >> 16; if ((ud4 == 0xffff && ud3 == 0xffff && ud2 == 0xffff && (ud1 & 0x8000)) || (ud4 == 0 && ud3 == 0 && ud2 == 0 && ! (ud1 & 0x8000))) { if (ud1 & 0x8000) emit_move_insn (dest, GEN_INT (((ud1 ^ 0x8000) - 0x8000))); else emit_move_insn (dest, GEN_INT (ud1)); } else if ((ud4 == 0xffff && ud3 == 0xffff && (ud2 & 0x8000)) || (ud4 == 0 && ud3 == 0 && ! (ud2 & 0x8000))) { if (ud2 & 0x8000) emit_move_insn (dest, GEN_INT (((ud2 << 16) ^ 0x80000000) - 0x80000000)); else emit_move_insn (dest, GEN_INT (ud2 << 16)); if (ud1 != 0) emit_move_insn (copy_rtx (dest), gen_rtx_IOR (DImode, copy_rtx (dest), GEN_INT (ud1))); } else if (ud3 == 0 && ud4 == 0) { gcc_assert (ud2 & 0x8000); emit_move_insn (dest, GEN_INT (((ud2 << 16) ^ 0x80000000) - 0x80000000)); if (ud1 != 0) emit_move_insn (copy_rtx (dest), gen_rtx_IOR (DImode, copy_rtx (dest), GEN_INT (ud1))); emit_move_insn (copy_rtx (dest), gen_rtx_ZERO_EXTEND (DImode, gen_lowpart (SImode, copy_rtx (dest)))); } else if ((ud4 == 0xffff && (ud3 & 0x8000)) || (ud4 == 0 && ! (ud3 & 0x8000))) { if (ud3 & 0x8000) emit_move_insn (dest, GEN_INT (((ud3 << 16) ^ 0x80000000) - 0x80000000)); else emit_move_insn (dest, GEN_INT (ud3 << 16)); if (ud2 != 0) emit_move_insn (copy_rtx (dest), gen_rtx_IOR (DImode, copy_rtx (dest), GEN_INT (ud2))); emit_move_insn (copy_rtx (dest), gen_rtx_ASHIFT (DImode, copy_rtx (dest), GEN_INT (16))); if (ud1 != 0) emit_move_insn (copy_rtx (dest), gen_rtx_IOR (DImode, copy_rtx (dest), GEN_INT (ud1))); } else { if (ud4 & 0x8000) emit_move_insn (dest, GEN_INT (((ud4 << 16) ^ 0x80000000) - 0x80000000)); else emit_move_insn (dest, GEN_INT (ud4 << 16)); if (ud3 != 0) emit_move_insn (copy_rtx (dest), gen_rtx_IOR (DImode, copy_rtx (dest), GEN_INT (ud3))); emit_move_insn (copy_rtx (dest), gen_rtx_ASHIFT (DImode, copy_rtx (dest), GEN_INT (32))); if (ud2 != 0) emit_move_insn (copy_rtx (dest), gen_rtx_IOR (DImode, copy_rtx (dest), GEN_INT (ud2 << 16))); if (ud1 != 0) emit_move_insn (copy_rtx (dest), gen_rtx_IOR (DImode, copy_rtx (dest), GEN_INT (ud1))); } } return dest; } /* Helper for the following. Get rid of [r+r] memory refs in cases where it won't work (TImode, TFmode, TDmode). */ static void rs6000_eliminate_indexed_memrefs (rtx operands[2]) { if (GET_CODE (operands[0]) == MEM && GET_CODE (XEXP (operands[0], 0)) != REG && ! legitimate_constant_pool_address_p (XEXP (operands[0], 0)) && ! reload_in_progress) operands[0] = replace_equiv_address (operands[0], copy_addr_to_reg (XEXP (operands[0], 0))); if (GET_CODE (operands[1]) == MEM && GET_CODE (XEXP (operands[1], 0)) != REG && ! legitimate_constant_pool_address_p (XEXP (operands[1], 0)) && ! reload_in_progress) operands[1] = replace_equiv_address (operands[1], copy_addr_to_reg (XEXP (operands[1], 0))); } /* Emit a move from SOURCE to DEST in mode MODE. */ void rs6000_emit_move (rtx dest, rtx source, enum machine_mode mode) { rtx operands[2]; operands[0] = dest; operands[1] = source; if (TARGET_DEBUG_ADDR) { fprintf (stderr, "\nrs6000_emit_move: mode = %s, reload_in_progress = %d, " "reload_completed = %d, can_create_pseudos = %d.\ndest:\n", GET_MODE_NAME (mode), reload_in_progress, reload_completed, can_create_pseudo_p ()); debug_rtx (dest); fprintf (stderr, "source:\n"); debug_rtx (source); } /* Sanity checks. Check that we get CONST_DOUBLE only when we should. */ if (GET_CODE (operands[1]) == CONST_DOUBLE && ! FLOAT_MODE_P (mode) && GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT) { /* FIXME. This should never happen. */ /* Since it seems that it does, do the safe thing and convert to a CONST_INT. */ operands[1] = gen_int_mode (CONST_DOUBLE_LOW (operands[1]), mode); } gcc_assert (GET_CODE (operands[1]) != CONST_DOUBLE || FLOAT_MODE_P (mode) || ((CONST_DOUBLE_HIGH (operands[1]) != 0 || CONST_DOUBLE_LOW (operands[1]) < 0) && (CONST_DOUBLE_HIGH (operands[1]) != -1 || CONST_DOUBLE_LOW (operands[1]) >= 0))); /* Check if GCC is setting up a block move that will end up using FP registers as temporaries. We must make sure this is acceptable. */ if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM && mode == DImode && (SLOW_UNALIGNED_ACCESS (DImode, MEM_ALIGN (operands[0])) || SLOW_UNALIGNED_ACCESS (DImode, MEM_ALIGN (operands[1]))) && ! (SLOW_UNALIGNED_ACCESS (SImode, (MEM_ALIGN (operands[0]) > 32 ? 32 : MEM_ALIGN (operands[0]))) || SLOW_UNALIGNED_ACCESS (SImode, (MEM_ALIGN (operands[1]) > 32 ? 32 : MEM_ALIGN (operands[1])))) && ! MEM_VOLATILE_P (operands [0]) && ! MEM_VOLATILE_P (operands [1])) { emit_move_insn (adjust_address (operands[0], SImode, 0), adjust_address (operands[1], SImode, 0)); emit_move_insn (adjust_address (copy_rtx (operands[0]), SImode, 4), adjust_address (copy_rtx (operands[1]), SImode, 4)); return; } if (can_create_pseudo_p () && GET_CODE (operands[0]) == MEM && !gpc_reg_operand (operands[1], mode)) operands[1] = force_reg (mode, operands[1]); if (mode == SFmode && ! TARGET_POWERPC && TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_DOUBLE_FLOAT && GET_CODE (operands[0]) == MEM) { int regnum; if (reload_in_progress || reload_completed) regnum = true_regnum (operands[1]); else if (GET_CODE (operands[1]) == REG) regnum = REGNO (operands[1]); else regnum = -1; /* If operands[1] is a register, on POWER it may have double-precision data in it, so truncate it to single precision. */ if (FP_REGNO_P (regnum) || regnum >= FIRST_PSEUDO_REGISTER) { rtx newreg; newreg = (!can_create_pseudo_p () ? copy_rtx (operands[1]) : gen_reg_rtx (mode)); emit_insn (gen_aux_truncdfsf2 (newreg, operands[1])); operands[1] = newreg; } } /* Recognize the case where operand[1] is a reference to thread-local data and load its address to a register. */ if (rs6000_tls_referenced_p (operands[1])) { enum tls_model model; rtx tmp = operands[1]; rtx addend = NULL; if (GET_CODE (tmp) == CONST && GET_CODE (XEXP (tmp, 0)) == PLUS) { addend = XEXP (XEXP (tmp, 0), 1); tmp = XEXP (XEXP (tmp, 0), 0); } gcc_assert (GET_CODE (tmp) == SYMBOL_REF); model = SYMBOL_REF_TLS_MODEL (tmp); gcc_assert (model != 0); tmp = rs6000_legitimize_tls_address (tmp, model); if (addend) { tmp = gen_rtx_PLUS (mode, tmp, addend); tmp = force_operand (tmp, operands[0]); } operands[1] = tmp; } /* Handle the case where reload calls us with an invalid address. */ if (reload_in_progress && mode == Pmode && (! general_operand (operands[1], mode) || ! nonimmediate_operand (operands[0], mode))) goto emit_set; /* 128-bit constant floating-point values on Darwin should really be loaded as two parts. */ if (!TARGET_IEEEQUAD && TARGET_LONG_DOUBLE_128 && mode == TFmode && GET_CODE (operands[1]) == CONST_DOUBLE) { /* DImode is used, not DFmode, because simplify_gen_subreg doesn't know how to get a DFmode SUBREG of a TFmode. */ enum machine_mode imode = (TARGET_E500_DOUBLE ? DFmode : DImode); rs6000_emit_move (simplify_gen_subreg (imode, operands[0], mode, 0), simplify_gen_subreg (imode, operands[1], mode, 0), imode); rs6000_emit_move (simplify_gen_subreg (imode, operands[0], mode, GET_MODE_SIZE (imode)), simplify_gen_subreg (imode, operands[1], mode, GET_MODE_SIZE (imode)), imode); return; } if (reload_in_progress && cfun->machine->sdmode_stack_slot != NULL_RTX) cfun->machine->sdmode_stack_slot = eliminate_regs (cfun->machine->sdmode_stack_slot, VOIDmode, NULL_RTX); if (reload_in_progress && mode == SDmode && MEM_P (operands[0]) && rtx_equal_p (operands[0], cfun->machine->sdmode_stack_slot) && REG_P (operands[1])) { if (FP_REGNO_P (REGNO (operands[1]))) { rtx mem = adjust_address_nv (operands[0], DDmode, 0); mem = eliminate_regs (mem, VOIDmode, NULL_RTX); emit_insn (gen_movsd_store (mem, operands[1])); } else if (INT_REGNO_P (REGNO (operands[1]))) { rtx mem = adjust_address_nv (operands[0], mode, 4); mem = eliminate_regs (mem, VOIDmode, NULL_RTX); emit_insn (gen_movsd_hardfloat (mem, operands[1])); } else gcc_unreachable(); return; } if (reload_in_progress && mode == SDmode && REG_P (operands[0]) && MEM_P (operands[1]) && rtx_equal_p (operands[1], cfun->machine->sdmode_stack_slot)) { if (FP_REGNO_P (REGNO (operands[0]))) { rtx mem = adjust_address_nv (operands[1], DDmode, 0); mem = eliminate_regs (mem, VOIDmode, NULL_RTX); emit_insn (gen_movsd_load (operands[0], mem)); } else if (INT_REGNO_P (REGNO (operands[0]))) { rtx mem = adjust_address_nv (operands[1], mode, 4); mem = eliminate_regs (mem, VOIDmode, NULL_RTX); emit_insn (gen_movsd_hardfloat (operands[0], mem)); } else gcc_unreachable(); return; } /* FIXME: In the long term, this switch statement should go away and be replaced by a sequence of tests based on things like mode == Pmode. */ switch (mode) { case HImode: case QImode: if (CONSTANT_P (operands[1]) && GET_CODE (operands[1]) != CONST_INT) operands[1] = force_const_mem (mode, operands[1]); break; case TFmode: case TDmode: rs6000_eliminate_indexed_memrefs (operands); /* fall through */ case DFmode: case DDmode: case SFmode: case SDmode: if (CONSTANT_P (operands[1]) && ! easy_fp_constant (operands[1], mode)) operands[1] = force_const_mem (mode, operands[1]); break; case V16QImode: case V8HImode: case V4SFmode: case V4SImode: case V4HImode: case V2SFmode: case V2SImode: case V1DImode: case V2DFmode: case V2DImode: if (CONSTANT_P (operands[1]) && !easy_vector_constant (operands[1], mode)) operands[1] = force_const_mem (mode, operands[1]); break; case SImode: case DImode: /* Use default pattern for address of ELF small data */ if (TARGET_ELF && mode == Pmode && DEFAULT_ABI == ABI_V4 && (GET_CODE (operands[1]) == SYMBOL_REF || GET_CODE (operands[1]) == CONST) && small_data_operand (operands[1], mode)) { emit_insn (gen_rtx_SET (VOIDmode, operands[0], operands[1])); return; } if (DEFAULT_ABI == ABI_V4 && mode == Pmode && mode == SImode && flag_pic == 1 && got_operand (operands[1], mode)) { emit_insn (gen_movsi_got (operands[0], operands[1])); return; } if ((TARGET_ELF || DEFAULT_ABI == ABI_DARWIN) && TARGET_NO_TOC && ! flag_pic && mode == Pmode && CONSTANT_P (operands[1]) && GET_CODE (operands[1]) != HIGH && GET_CODE (operands[1]) != CONST_INT) { rtx target = (!can_create_pseudo_p () ? operands[0] : gen_reg_rtx (mode)); /* If this is a function address on -mcall-aixdesc, convert it to the address of the descriptor. */ if (DEFAULT_ABI == ABI_AIX && GET_CODE (operands[1]) == SYMBOL_REF && XSTR (operands[1], 0)[0] == '.') { const char *name = XSTR (operands[1], 0); rtx new_ref; while (*name == '.') name++; new_ref = gen_rtx_SYMBOL_REF (Pmode, name); CONSTANT_POOL_ADDRESS_P (new_ref) = CONSTANT_POOL_ADDRESS_P (operands[1]); SYMBOL_REF_FLAGS (new_ref) = SYMBOL_REF_FLAGS (operands[1]); SYMBOL_REF_USED (new_ref) = SYMBOL_REF_USED (operands[1]); SYMBOL_REF_DATA (new_ref) = SYMBOL_REF_DATA (operands[1]); operands[1] = new_ref; } if (DEFAULT_ABI == ABI_DARWIN) { #if TARGET_MACHO if (MACHO_DYNAMIC_NO_PIC_P) { /* Take care of any required data indirection. */ operands[1] = rs6000_machopic_legitimize_pic_address ( operands[1], mode, operands[0]); if (operands[0] != operands[1]) emit_insn (gen_rtx_SET (VOIDmode, operands[0], operands[1])); return; } #endif emit_insn (gen_macho_high (target, operands[1])); emit_insn (gen_macho_low (operands[0], target, operands[1])); return; } emit_insn (gen_elf_high (target, operands[1])); emit_insn (gen_elf_low (operands[0], target, operands[1])); return; } /* If this is a SYMBOL_REF that refers to a constant pool entry, and we have put it in the TOC, we just need to make a TOC-relative reference to it. */ if (TARGET_TOC && GET_CODE (operands[1]) == SYMBOL_REF && constant_pool_expr_p (operands[1]) && ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (get_pool_constant (operands[1]), get_pool_mode (operands[1]))) { operands[1] = create_TOC_reference (operands[1]); } else if (mode == Pmode && CONSTANT_P (operands[1]) && ((GET_CODE (operands[1]) != CONST_INT && ! easy_fp_constant (operands[1], mode)) || (GET_CODE (operands[1]) == CONST_INT && num_insns_constant (operands[1], mode) > 2) || (GET_CODE (operands[0]) == REG && FP_REGNO_P (REGNO (operands[0])))) && GET_CODE (operands[1]) != HIGH && ! legitimate_constant_pool_address_p (operands[1]) && ! toc_relative_expr_p (operands[1])) { #if TARGET_MACHO /* Darwin uses a special PIC legitimizer. */ if (DEFAULT_ABI == ABI_DARWIN && MACHOPIC_INDIRECT) { operands[1] = rs6000_machopic_legitimize_pic_address (operands[1], mode, operands[0]); if (operands[0] != operands[1]) emit_insn (gen_rtx_SET (VOIDmode, operands[0], operands[1])); return; } #endif /* If we are to limit the number of things we put in the TOC and this is a symbol plus a constant we can add in one insn, just put the symbol in the TOC and add the constant. Don't do this if reload is in progress. */ if (GET_CODE (operands[1]) == CONST && TARGET_NO_SUM_IN_TOC && ! reload_in_progress && GET_CODE (XEXP (operands[1], 0)) == PLUS && add_operand (XEXP (XEXP (operands[1], 0), 1), mode) && (GET_CODE (XEXP (XEXP (operands[1], 0), 0)) == LABEL_REF || GET_CODE (XEXP (XEXP (operands[1], 0), 0)) == SYMBOL_REF) && ! side_effects_p (operands[0])) { rtx sym = force_const_mem (mode, XEXP (XEXP (operands[1], 0), 0)); rtx other = XEXP (XEXP (operands[1], 0), 1); sym = force_reg (mode, sym); emit_insn (gen_add3_insn (operands[0], sym, other)); return; } operands[1] = force_const_mem (mode, operands[1]); if (TARGET_TOC && GET_CODE (XEXP (operands[1], 0)) == SYMBOL_REF && constant_pool_expr_p (XEXP (operands[1], 0)) && ASM_OUTPUT_SPECIAL_POOL_ENTRY_P ( get_pool_constant (XEXP (operands[1], 0)), get_pool_mode (XEXP (operands[1], 0)))) { operands[1] = gen_const_mem (mode, create_TOC_reference (XEXP (operands[1], 0))); set_mem_alias_set (operands[1], get_TOC_alias_set ()); } } break; case TImode: rs6000_eliminate_indexed_memrefs (operands); if (TARGET_POWER) { emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, gen_rtx_SET (VOIDmode, operands[0], operands[1]), gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (SImode))))); return; } break; default: fatal_insn ("bad move", gen_rtx_SET (VOIDmode, dest, source)); } /* Above, we may have called force_const_mem which may have returned an invalid address. If we can, fix this up; otherwise, reload will have to deal with it. */ if (GET_CODE (operands[1]) == MEM && ! reload_in_progress) operands[1] = validize_mem (operands[1]); emit_set: emit_insn (gen_rtx_SET (VOIDmode, operands[0], operands[1])); } /* Nonzero if we can use a floating-point register to pass this arg. */ #define USE_FP_FOR_ARG_P(CUM,MODE,TYPE) \ (SCALAR_FLOAT_MODE_P (MODE) \ && (CUM)->fregno <= FP_ARG_MAX_REG \ && TARGET_HARD_FLOAT && TARGET_FPRS) /* Nonzero if we can use an AltiVec register to pass this arg. */ #define USE_ALTIVEC_FOR_ARG_P(CUM,MODE,TYPE,NAMED) \ ((ALTIVEC_VECTOR_MODE (MODE) || VSX_VECTOR_MODE (MODE)) \ && (CUM)->vregno <= ALTIVEC_ARG_MAX_REG \ && TARGET_ALTIVEC_ABI \ && (NAMED)) /* Return a nonzero value to say to return the function value in memory, just as large structures are always returned. TYPE will be the data type of the value, and FNTYPE will be the type of the function doing the returning, or @code{NULL} for libcalls. The AIX ABI for the RS/6000 specifies that all structures are returned in memory. The Darwin ABI does the same. The SVR4 ABI specifies that structures <= 8 bytes are returned in r3/r4, but a draft put them in memory, and GCC used to implement the draft instead of the final standard. Therefore, aix_struct_return controls this instead of DEFAULT_ABI; V.4 targets needing backward compatibility can change DRAFT_V4_STRUCT_RET to override the default, and -m switches get the final word. See rs6000_override_options for more details. The PPC32 SVR4 ABI uses IEEE double extended for long double, if 128-bit long double support is enabled. These values are returned in memory. int_size_in_bytes returns -1 for variable size objects, which go in memory always. The cast to unsigned makes -1 > 8. */ static bool rs6000_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED) { /* In the darwin64 abi, try to use registers for larger structs if possible. */ if (rs6000_darwin64_abi && TREE_CODE (type) == RECORD_TYPE && int_size_in_bytes (type) > 0) { CUMULATIVE_ARGS valcum; rtx valret; valcum.words = 0; valcum.fregno = FP_ARG_MIN_REG; valcum.vregno = ALTIVEC_ARG_MIN_REG; /* Do a trial code generation as if this were going to be passed as an argument; if any part goes in memory, we return NULL. */ valret = rs6000_darwin64_record_arg (&valcum, type, 1, true); if (valret) return false; /* Otherwise fall through to more conventional ABI rules. */ } if (AGGREGATE_TYPE_P (type) && (aix_struct_return || (unsigned HOST_WIDE_INT) int_size_in_bytes (type) > 8)) return true; /* Allow -maltivec -mabi=no-altivec without warning. Altivec vector modes only exist for GCC vector types if -maltivec. */ if (TARGET_32BIT && !TARGET_ALTIVEC_ABI && ALTIVEC_VECTOR_MODE (TYPE_MODE (type))) return false; /* Return synthetic vectors in memory. */ if (TREE_CODE (type) == VECTOR_TYPE && int_size_in_bytes (type) > (TARGET_ALTIVEC_ABI ? 16 : 8)) { static bool warned_for_return_big_vectors = false; if (!warned_for_return_big_vectors) { warning (0, "GCC vector returned by reference: " "non-standard ABI extension with no compatibility guarantee"); warned_for_return_big_vectors = true; } return true; } if (DEFAULT_ABI == ABI_V4 && TARGET_IEEEQUAD && TYPE_MODE (type) == TFmode) return true; return false; } /* Initialize a variable CUM of type CUMULATIVE_ARGS for a call to a function whose data type is FNTYPE. For a library call, FNTYPE is 0. For incoming args we set the number of arguments in the prototype large so we never return a PARALLEL. */ void init_cumulative_args (CUMULATIVE_ARGS *cum, tree fntype, rtx libname ATTRIBUTE_UNUSED, int incoming, int libcall, int n_named_args) { static CUMULATIVE_ARGS zero_cumulative; *cum = zero_cumulative; cum->words = 0; cum->fregno = FP_ARG_MIN_REG; cum->vregno = ALTIVEC_ARG_MIN_REG; cum->prototype = (fntype && TYPE_ARG_TYPES (fntype)); cum->call_cookie = ((DEFAULT_ABI == ABI_V4 && libcall) ? CALL_LIBCALL : CALL_NORMAL); cum->sysv_gregno = GP_ARG_MIN_REG; cum->stdarg = fntype && (TYPE_ARG_TYPES (fntype) != 0 && (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype))) != void_type_node)); cum->nargs_prototype = 0; if (incoming || cum->prototype) cum->nargs_prototype = n_named_args; /* Check for a longcall attribute. */ if ((!fntype && rs6000_default_long_calls) || (fntype && lookup_attribute ("longcall", TYPE_ATTRIBUTES (fntype)) && !lookup_attribute ("shortcall", TYPE_ATTRIBUTES (fntype)))) cum->call_cookie |= CALL_LONG; if (TARGET_DEBUG_ARG) { fprintf (stderr, "\ninit_cumulative_args:"); if (fntype) { tree ret_type = TREE_TYPE (fntype); fprintf (stderr, " ret code = %s,", tree_code_name[ (int)TREE_CODE (ret_type) ]); } if (cum->call_cookie & CALL_LONG) fprintf (stderr, " longcall,"); fprintf (stderr, " proto = %d, nargs = %d\n", cum->prototype, cum->nargs_prototype); } if (fntype && !TARGET_ALTIVEC && TARGET_ALTIVEC_ABI && ALTIVEC_VECTOR_MODE (TYPE_MODE (TREE_TYPE (fntype)))) { error ("cannot return value in vector register because" " altivec instructions are disabled, use -maltivec" " to enable them"); } } /* Return true if TYPE must be passed on the stack and not in registers. */ static bool rs6000_must_pass_in_stack (enum machine_mode mode, const_tree type) { if (DEFAULT_ABI == ABI_AIX || TARGET_64BIT) return must_pass_in_stack_var_size (mode, type); else return must_pass_in_stack_var_size_or_pad (mode, type); } /* If defined, a C expression which determines whether, and in which direction, to pad out an argument with extra space. The value should be of type `enum direction': either `upward' to pad above the argument, `downward' to pad below, or `none' to inhibit padding. For the AIX ABI structs are always stored left shifted in their argument slot. */ enum direction function_arg_padding (enum machine_mode mode, const_tree type) { #ifndef AGGREGATE_PADDING_FIXED #define AGGREGATE_PADDING_FIXED 0 #endif #ifndef AGGREGATES_PAD_UPWARD_ALWAYS #define AGGREGATES_PAD_UPWARD_ALWAYS 0 #endif if (!AGGREGATE_PADDING_FIXED) { /* GCC used to pass structures of the same size as integer types as if they were in fact integers, ignoring FUNCTION_ARG_PADDING. i.e. Structures of size 1 or 2 (or 4 when TARGET_64BIT) were passed padded downward, except that -mstrict-align further muddied the water in that multi-component structures of 2 and 4 bytes in size were passed padded upward. The following arranges for best compatibility with previous versions of gcc, but removes the -mstrict-align dependency. */ if (BYTES_BIG_ENDIAN) { HOST_WIDE_INT size = 0; if (mode == BLKmode) { if (type && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST) size = int_size_in_bytes (type); } else size = GET_MODE_SIZE (mode); if (size == 1 || size == 2 || size == 4) return downward; } return upward; } if (AGGREGATES_PAD_UPWARD_ALWAYS) { if (type != 0 && AGGREGATE_TYPE_P (type)) return upward; } /* Fall back to the default. */ return DEFAULT_FUNCTION_ARG_PADDING (mode, type); } /* If defined, a C expression that gives the alignment boundary, in bits, of an argument with the specified mode and type. If it is not defined, PARM_BOUNDARY is used for all arguments. V.4 wants long longs and doubles to be double word aligned. Just testing the mode size is a boneheaded way to do this as it means that other types such as complex int are also double word aligned. However, we're stuck with this because changing the ABI might break existing library interfaces. Doubleword align SPE vectors. Quadword align Altivec vectors. Quadword align large synthetic vector types. */ int function_arg_boundary (enum machine_mode mode, tree type) { if (DEFAULT_ABI == ABI_V4 && (GET_MODE_SIZE (mode) == 8 || (TARGET_HARD_FLOAT && TARGET_FPRS && (mode == TFmode || mode == TDmode)))) return 64; else if (SPE_VECTOR_MODE (mode) || (type && TREE_CODE (type) == VECTOR_TYPE && int_size_in_bytes (type) >= 8 && int_size_in_bytes (type) < 16)) return 64; else if ((ALTIVEC_VECTOR_MODE (mode) || VSX_VECTOR_MODE (mode)) || (type && TREE_CODE (type) == VECTOR_TYPE && int_size_in_bytes (type) >= 16)) return 128; else if (rs6000_darwin64_abi && mode == BLKmode && type && TYPE_ALIGN (type) > 64) return 128; else return PARM_BOUNDARY; } /* For a function parm of MODE and TYPE, return the starting word in the parameter area. NWORDS of the parameter area are already used. */ static unsigned int rs6000_parm_start (enum machine_mode mode, tree type, unsigned int nwords) { unsigned int align; unsigned int parm_offset; align = function_arg_boundary (mode, type) / PARM_BOUNDARY - 1; parm_offset = DEFAULT_ABI == ABI_V4 ? 2 : 6; return nwords + (-(parm_offset + nwords) & align); } /* Compute the size (in words) of a function argument. */ static unsigned long rs6000_arg_size (enum machine_mode mode, tree type) { unsigned long size; if (mode != BLKmode) size = GET_MODE_SIZE (mode); else size = int_size_in_bytes (type); if (TARGET_32BIT) return (size + 3) >> 2; else return (size + 7) >> 3; } /* Use this to flush pending int fields. */ static void rs6000_darwin64_record_arg_advance_flush (CUMULATIVE_ARGS *cum, HOST_WIDE_INT bitpos) { unsigned int startbit, endbit; int intregs, intoffset; enum machine_mode mode; if (cum->intoffset == -1) return; intoffset = cum->intoffset; cum->intoffset = -1; if (intoffset % BITS_PER_WORD != 0) { mode = mode_for_size (BITS_PER_WORD - intoffset % BITS_PER_WORD, MODE_INT, 0); if (mode == BLKmode) { /* We couldn't find an appropriate mode, which happens, e.g., in packed structs when there are 3 bytes to load. Back intoffset back to the beginning of the word in this case. */ intoffset = intoffset & -BITS_PER_WORD; } } startbit = intoffset & -BITS_PER_WORD; endbit = (bitpos + BITS_PER_WORD - 1) & -BITS_PER_WORD; intregs = (endbit - startbit) / BITS_PER_WORD; cum->words += intregs; } /* The darwin64 ABI calls for us to recurse down through structs, looking for elements passed in registers. Unfortunately, we have to track int register count here also because of misalignments in powerpc alignment mode. */ static void rs6000_darwin64_record_arg_advance_recurse (CUMULATIVE_ARGS *cum, tree type, HOST_WIDE_INT startbitpos) { tree f; for (f = TYPE_FIELDS (type); f ; f = TREE_CHAIN (f)) if (TREE_CODE (f) == FIELD_DECL) { HOST_WIDE_INT bitpos = startbitpos; tree ftype = TREE_TYPE (f); enum machine_mode mode; if (ftype == error_mark_node) continue; mode = TYPE_MODE (ftype); if (DECL_SIZE (f) != 0 && host_integerp (bit_position (f), 1)) bitpos += int_bit_position (f); /* ??? FIXME: else assume zero offset. */ if (TREE_CODE (ftype) == RECORD_TYPE) rs6000_darwin64_record_arg_advance_recurse (cum, ftype, bitpos); else if (USE_FP_FOR_ARG_P (cum, mode, ftype)) { rs6000_darwin64_record_arg_advance_flush (cum, bitpos); cum->fregno += (GET_MODE_SIZE (mode) + 7) >> 3; cum->words += (GET_MODE_SIZE (mode) + 7) >> 3; } else if (USE_ALTIVEC_FOR_ARG_P (cum, mode, type, 1)) { rs6000_darwin64_record_arg_advance_flush (cum, bitpos); cum->vregno++; cum->words += 2; } else if (cum->intoffset == -1) cum->intoffset = bitpos; } } /* Update the data in CUM to advance over an argument of mode MODE and data type TYPE. (TYPE is null for libcalls where that information may not be available.) Note that for args passed by reference, function_arg will be called with MODE and TYPE set to that of the pointer to the arg, not the arg itself. */ void function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode, tree type, int named, int depth) { int size; /* Only tick off an argument if we're not recursing. */ if (depth == 0) cum->nargs_prototype--; if (TARGET_ALTIVEC_ABI && (ALTIVEC_VECTOR_MODE (mode) || VSX_VECTOR_MODE (mode) || (type && TREE_CODE (type) == VECTOR_TYPE && int_size_in_bytes (type) == 16))) { bool stack = false; if (USE_ALTIVEC_FOR_ARG_P (cum, mode, type, named)) { cum->vregno++; if (!TARGET_ALTIVEC) error ("cannot pass argument in vector register because" " altivec instructions are disabled, use -maltivec" " to enable them"); /* PowerPC64 Linux and AIX allocate GPRs for a vector argument even if it is going to be passed in a vector register. Darwin does the same for variable-argument functions. */ if ((DEFAULT_ABI == ABI_AIX && TARGET_64BIT) || (cum->stdarg && DEFAULT_ABI != ABI_V4)) stack = true; } else stack = true; if (stack) { int align; /* Vector parameters must be 16-byte aligned. This places them at 2 mod 4 in terms of words in 32-bit mode, since the parameter save area starts at offset 24 from the stack. In 64-bit mode, they just have to start on an even word, since the parameter save area is 16-byte aligned. Space for GPRs is reserved even if the argument will be passed in memory. */ if (TARGET_32BIT) align = (2 - cum->words) & 3; else align = cum->words & 1; cum->words += align + rs6000_arg_size (mode, type); if (TARGET_DEBUG_ARG) { fprintf (stderr, "function_adv: words = %2d, align=%d, ", cum->words, align); fprintf (stderr, "nargs = %4d, proto = %d, mode = %4s\n", cum->nargs_prototype, cum->prototype, GET_MODE_NAME (mode)); } } } else if (TARGET_SPE_ABI && TARGET_SPE && SPE_VECTOR_MODE (mode) && !cum->stdarg && cum->sysv_gregno <= GP_ARG_MAX_REG) cum->sysv_gregno++; else if (rs6000_darwin64_abi && mode == BLKmode && TREE_CODE (type) == RECORD_TYPE && (size = int_size_in_bytes (type)) > 0) { /* Variable sized types have size == -1 and are treated as if consisting entirely of ints. Pad to 16 byte boundary if needed. */ if (TYPE_ALIGN (type) >= 2 * BITS_PER_WORD && (cum->words % 2) != 0) cum->words++; /* For varargs, we can just go up by the size of the struct. */ if (!named) cum->words += (size + 7) / 8; else { /* It is tempting to say int register count just goes up by sizeof(type)/8, but this is wrong in a case such as { int; double; int; } [powerpc alignment]. We have to grovel through the fields for these too. */ cum->intoffset = 0; rs6000_darwin64_record_arg_advance_recurse (cum, type, 0); rs6000_darwin64_record_arg_advance_flush (cum, size * BITS_PER_UNIT); } } else if (DEFAULT_ABI == ABI_V4) { if (TARGET_HARD_FLOAT && TARGET_FPRS && ((TARGET_SINGLE_FLOAT && mode == SFmode) || (TARGET_DOUBLE_FLOAT && mode == DFmode) || (mode == TFmode && !TARGET_IEEEQUAD) || mode == SDmode || mode == DDmode || mode == TDmode)) { /* _Decimal128 must use an even/odd register pair. This assumes that the register number is odd when fregno is odd. */ if (mode == TDmode && (cum->fregno % 2) == 1) cum->fregno++; if (cum->fregno + (mode == TFmode || mode == TDmode ? 1 : 0) <= FP_ARG_V4_MAX_REG) cum->fregno += (GET_MODE_SIZE (mode) + 7) >> 3; else { cum->fregno = FP_ARG_V4_MAX_REG + 1; if (mode == DFmode || mode == TFmode || mode == DDmode || mode == TDmode) cum->words += cum->words & 1; cum->words += rs6000_arg_size (mode, type); } } else { int n_words = rs6000_arg_size (mode, type); int gregno = cum->sysv_gregno; /* Long long and SPE vectors are put in (r3,r4), (r5,r6), (r7,r8) or (r9,r10). As does any other 2 word item such as complex int due to a historical mistake. */ if (n_words == 2) gregno += (1 - gregno) & 1; /* Multi-reg args are not split between registers and stack. */ if (gregno + n_words - 1 > GP_ARG_MAX_REG) { /* Long long and SPE vectors are aligned on the stack. So are other 2 word items such as complex int due to a historical mistake. */ if (n_words == 2) cum->words += cum->words & 1; cum->words += n_words; } /* Note: continuing to accumulate gregno past when we've started spilling to the stack indicates the fact that we've started spilling to the stack to expand_builtin_saveregs. */ cum->sysv_gregno = gregno + n_words; } if (TARGET_DEBUG_ARG) { fprintf (stderr, "function_adv: words = %2d, fregno = %2d, ", cum->words, cum->fregno); fprintf (stderr, "gregno = %2d, nargs = %4d, proto = %d, ", cum->sysv_gregno, cum->nargs_prototype, cum->prototype); fprintf (stderr, "mode = %4s, named = %d\n", GET_MODE_NAME (mode), named); } } else { int n_words = rs6000_arg_size (mode, type); int start_words = cum->words; int align_words = rs6000_parm_start (mode, type, start_words); cum->words = align_words + n_words; if (SCALAR_FLOAT_MODE_P (mode) && TARGET_HARD_FLOAT && TARGET_FPRS) { /* _Decimal128 must be passed in an even/odd float register pair. This assumes that the register number is odd when fregno is odd. */ if (mode == TDmode && (cum->fregno % 2) == 1) cum->fregno++; cum->fregno += (GET_MODE_SIZE (mode) + 7) >> 3; } if (TARGET_DEBUG_ARG) { fprintf (stderr, "function_adv: words = %2d, fregno = %2d, ", cum->words, cum->fregno); fprintf (stderr, "nargs = %4d, proto = %d, mode = %4s, ", cum->nargs_prototype, cum->prototype, GET_MODE_NAME (mode)); fprintf (stderr, "named = %d, align = %d, depth = %d\n", named, align_words - start_words, depth); } } } static rtx spe_build_register_parallel (enum machine_mode mode, int gregno) { rtx r1, r3, r5, r7; switch (mode) { case DFmode: r1 = gen_rtx_REG (DImode, gregno); r1 = gen_rtx_EXPR_LIST (VOIDmode, r1, const0_rtx); return gen_rtx_PARALLEL (mode, gen_rtvec (1, r1)); case DCmode: case TFmode: r1 = gen_rtx_REG (DImode, gregno); r1 = gen_rtx_EXPR_LIST (VOIDmode, r1, const0_rtx); r3 = gen_rtx_REG (DImode, gregno + 2); r3 = gen_rtx_EXPR_LIST (VOIDmode, r3, GEN_INT (8)); return gen_rtx_PARALLEL (mode, gen_rtvec (2, r1, r3)); case TCmode: r1 = gen_rtx_REG (DImode, gregno); r1 = gen_rtx_EXPR_LIST (VOIDmode, r1, const0_rtx); r3 = gen_rtx_REG (DImode, gregno + 2); r3 = gen_rtx_EXPR_LIST (VOIDmode, r3, GEN_INT (8)); r5 = gen_rtx_REG (DImode, gregno + 4); r5 = gen_rtx_EXPR_LIST (VOIDmode, r5, GEN_INT (16)); r7 = gen_rtx_REG (DImode, gregno + 6); r7 = gen_rtx_EXPR_LIST (VOIDmode, r7, GEN_INT (24)); return gen_rtx_PARALLEL (mode, gen_rtvec (4, r1, r3, r5, r7)); default: gcc_unreachable (); } } /* Determine where to put a SIMD argument on the SPE. */ static rtx rs6000_spe_function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode, tree type) { int gregno = cum->sysv_gregno; /* On E500 v2, double arithmetic is done on the full 64-bit GPR, but are passed and returned in a pair of GPRs for ABI compatibility. */ if (TARGET_E500_DOUBLE && (mode == DFmode || mode == TFmode || mode == DCmode || mode == TCmode)) { int n_words = rs6000_arg_size (mode, type); /* Doubles go in an odd/even register pair (r5/r6, etc). */ if (mode == DFmode) gregno += (1 - gregno) & 1; /* Multi-reg args are not split between registers and stack. */ if (gregno + n_words - 1 > GP_ARG_MAX_REG) return NULL_RTX; return spe_build_register_parallel (mode, gregno); } if (cum->stdarg) { int n_words = rs6000_arg_size (mode, type); /* SPE vectors are put in odd registers. */ if (n_words == 2 && (gregno & 1) == 0) gregno += 1; if (gregno + n_words - 1 <= GP_ARG_MAX_REG) { rtx r1, r2; enum machine_mode m = SImode; r1 = gen_rtx_REG (m, gregno); r1 = gen_rtx_EXPR_LIST (m, r1, const0_rtx); r2 = gen_rtx_REG (m, gregno + 1); r2 = gen_rtx_EXPR_LIST (m, r2, GEN_INT (4)); return gen_rtx_PARALLEL (mode, gen_rtvec (2, r1, r2)); } else return NULL_RTX; } else { if (gregno <= GP_ARG_MAX_REG) return gen_rtx_REG (mode, gregno); else return NULL_RTX; } } /* A subroutine of rs6000_darwin64_record_arg. Assign the bits of the structure between cum->intoffset and bitpos to integer registers. */ static void rs6000_darwin64_record_arg_flush (CUMULATIVE_ARGS *cum, HOST_WIDE_INT bitpos, rtx rvec[], int *k) { enum machine_mode mode; unsigned int regno; unsigned int startbit, endbit; int this_regno, intregs, intoffset; rtx reg; if (cum->intoffset == -1) return; intoffset = cum->intoffset; cum->intoffset = -1; /* If this is the trailing part of a word, try to only load that much into the register. Otherwise load the whole register. Note that in the latter case we may pick up unwanted bits. It's not a problem at the moment but may wish to revisit. */ if (intoffset % BITS_PER_WORD != 0) { mode = mode_for_size (BITS_PER_WORD - intoffset % BITS_PER_WORD, MODE_INT, 0); if (mode == BLKmode) { /* We couldn't find an appropriate mode, which happens, e.g., in packed structs when there are 3 bytes to load. Back intoffset back to the beginning of the word in this case. */ intoffset = intoffset & -BITS_PER_WORD; mode = word_mode; } } else mode = word_mode; startbit = intoffset & -BITS_PER_WORD; endbit = (bitpos + BITS_PER_WORD - 1) & -BITS_PER_WORD; intregs = (endbit - startbit) / BITS_PER_WORD; this_regno = cum->words + intoffset / BITS_PER_WORD; if (intregs > 0 && intregs > GP_ARG_NUM_REG - this_regno) cum->use_stack = 1; intregs = MIN (intregs, GP_ARG_NUM_REG - this_regno); if (intregs <= 0) return; intoffset /= BITS_PER_UNIT; do { regno = GP_ARG_MIN_REG + this_regno; reg = gen_rtx_REG (mode, regno); rvec[(*k)++] = gen_rtx_EXPR_LIST (VOIDmode, reg, GEN_INT (intoffset)); this_regno += 1; intoffset = (intoffset | (UNITS_PER_WORD-1)) + 1; mode = word_mode; intregs -= 1; } while (intregs > 0); } /* Recursive workhorse for the following. */ static void rs6000_darwin64_record_arg_recurse (CUMULATIVE_ARGS *cum, const_tree type, HOST_WIDE_INT startbitpos, rtx rvec[], int *k) { tree f; for (f = TYPE_FIELDS (type); f ; f = TREE_CHAIN (f)) if (TREE_CODE (f) == FIELD_DECL) { HOST_WIDE_INT bitpos = startbitpos; tree ftype = TREE_TYPE (f); enum machine_mode mode; if (ftype == error_mark_node) continue; mode = TYPE_MODE (ftype); if (DECL_SIZE (f) != 0 && host_integerp (bit_position (f), 1)) bitpos += int_bit_position (f); /* ??? FIXME: else assume zero offset. */ if (TREE_CODE (ftype) == RECORD_TYPE) rs6000_darwin64_record_arg_recurse (cum, ftype, bitpos, rvec, k); else if (cum->named && USE_FP_FOR_ARG_P (cum, mode, ftype)) { #if 0 switch (mode) { case SCmode: mode = SFmode; break; case DCmode: mode = DFmode; break; case TCmode: mode = TFmode; break; default: break; } #endif rs6000_darwin64_record_arg_flush (cum, bitpos, rvec, k); rvec[(*k)++] = gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (mode, cum->fregno++), GEN_INT (bitpos / BITS_PER_UNIT)); if (mode == TFmode || mode == TDmode) cum->fregno++; } else if (cum->named && USE_ALTIVEC_FOR_ARG_P (cum, mode, ftype, 1)) { rs6000_darwin64_record_arg_flush (cum, bitpos, rvec, k); rvec[(*k)++] = gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (mode, cum->vregno++), GEN_INT (bitpos / BITS_PER_UNIT)); } else if (cum->intoffset == -1) cum->intoffset = bitpos; } } /* For the darwin64 ABI, we want to construct a PARALLEL consisting of the register(s) to be used for each field and subfield of a struct being passed by value, along with the offset of where the register's value may be found in the block. FP fields go in FP register, vector fields go in vector registers, and everything else goes in int registers, packed as in memory. This code is also used for function return values. RETVAL indicates whether this is the case. Much of this is taken from the SPARC V9 port, which has a similar calling convention. */ static rtx rs6000_darwin64_record_arg (CUMULATIVE_ARGS *orig_cum, const_tree type, int named, bool retval) { rtx rvec[FIRST_PSEUDO_REGISTER]; int k = 1, kbase = 1; HOST_WIDE_INT typesize = int_size_in_bytes (type); /* This is a copy; modifications are not visible to our caller. */ CUMULATIVE_ARGS copy_cum = *orig_cum; CUMULATIVE_ARGS *cum = ©_cum; /* Pad to 16 byte boundary if needed. */ if (!retval && TYPE_ALIGN (type) >= 2 * BITS_PER_WORD && (cum->words % 2) != 0) cum->words++; cum->intoffset = 0; cum->use_stack = 0; cum->named = named; /* Put entries into rvec[] for individual FP and vector fields, and for the chunks of memory that go in int regs. Note we start at element 1; 0 is reserved for an indication of using memory, and may or may not be filled in below. */ rs6000_darwin64_record_arg_recurse (cum, type, 0, rvec, &k); rs6000_darwin64_record_arg_flush (cum, typesize * BITS_PER_UNIT, rvec, &k); /* If any part of the struct went on the stack put all of it there. This hack is because the generic code for FUNCTION_ARG_PARTIAL_NREGS cannot handle cases where the register parts of the struct are not at the beginning. */ if (cum->use_stack) { if (retval) return NULL_RTX; /* doesn't go in registers at all */ kbase = 0; rvec[0] = gen_rtx_EXPR_LIST (VOIDmode, NULL_RTX, const0_rtx); } if (k > 1 || cum->use_stack) return gen_rtx_PARALLEL (BLKmode, gen_rtvec_v (k - kbase, &rvec[kbase])); else return NULL_RTX; } /* Determine where to place an argument in 64-bit mode with 32-bit ABI. */ static rtx rs6000_mixed_function_arg (enum machine_mode mode, tree type, int align_words) { int n_units; int i, k; rtx rvec[GP_ARG_NUM_REG + 1]; if (align_words >= GP_ARG_NUM_REG) return NULL_RTX; n_units = rs6000_arg_size (mode, type); /* Optimize the simple case where the arg fits in one gpr, except in the case of BLKmode due to assign_parms assuming that registers are BITS_PER_WORD wide. */ if (n_units == 0 || (n_units == 1 && mode != BLKmode)) return gen_rtx_REG (mode, GP_ARG_MIN_REG + align_words); k = 0; if (align_words + n_units > GP_ARG_NUM_REG) /* Not all of the arg fits in gprs. Say that it goes in memory too, using a magic NULL_RTX component. This is not strictly correct. Only some of the arg belongs in memory, not all of it. However, the normal scheme using function_arg_partial_nregs can result in unusual subregs, eg. (subreg:SI (reg:DF) 4), which are not handled well. The code to store the whole arg to memory is often more efficient than code to store pieces, and we know that space is available in the right place for the whole arg. */ rvec[k++] = gen_rtx_EXPR_LIST (VOIDmode, NULL_RTX, const0_rtx); i = 0; do { rtx r = gen_rtx_REG (SImode, GP_ARG_MIN_REG + align_words); rtx off = GEN_INT (i++ * 4); rvec[k++] = gen_rtx_EXPR_LIST (VOIDmode, r, off); } while (++align_words < GP_ARG_NUM_REG && --n_units != 0); return gen_rtx_PARALLEL (mode, gen_rtvec_v (k, rvec)); } /* Determine where to put an argument to a function. Value is zero to push the argument on the stack, or a hard register in which to store the argument. MODE is the argument's machine mode. TYPE is the data type of the argument (as a tree). This is null for libcalls where that information may not be available. CUM is a variable of type CUMULATIVE_ARGS which gives info about the preceding args and about the function being called. It is not modified in this routine. NAMED is nonzero if this argument is a named parameter (otherwise it is an extra parameter matching an ellipsis). On RS/6000 the first eight words of non-FP are normally in registers and the rest are pushed. Under AIX, the first 13 FP args are in registers. Under V.4, the first 8 FP args are in registers. If this is floating-point and no prototype is specified, we use both an FP and integer register (or possibly FP reg and stack). Library functions (when CALL_LIBCALL is set) always have the proper types for args, so we can pass the FP value just in one register. emit_library_function doesn't support PARALLEL anyway. Note that for args passed by reference, function_arg will be called with MODE and TYPE set to that of the pointer to the arg, not the arg itself. */ rtx function_arg (CUMULATIVE_ARGS *cum, enum machine_mode mode, tree type, int named) { enum rs6000_abi abi = DEFAULT_ABI; /* Return a marker to indicate whether CR1 needs to set or clear the bit that V.4 uses to say fp args were passed in registers. Assume that we don't need the marker for software floating point, or compiler generated library calls. */ if (mode == VOIDmode) { if (abi == ABI_V4 && (cum->call_cookie & CALL_LIBCALL) == 0 && (cum->stdarg || (cum->nargs_prototype < 0 && (cum->prototype || TARGET_NO_PROTOTYPE)))) { /* For the SPE, we need to crxor CR6 always. */ if (TARGET_SPE_ABI) return GEN_INT (cum->call_cookie | CALL_V4_SET_FP_ARGS); else if (TARGET_HARD_FLOAT && TARGET_FPRS) return GEN_INT (cum->call_cookie | ((cum->fregno == FP_ARG_MIN_REG) ? CALL_V4_SET_FP_ARGS : CALL_V4_CLEAR_FP_ARGS)); } return GEN_INT (cum->call_cookie); } if (rs6000_darwin64_abi && mode == BLKmode && TREE_CODE (type) == RECORD_TYPE) { rtx rslt = rs6000_darwin64_record_arg (cum, type, named, false); if (rslt != NULL_RTX) return rslt; /* Else fall through to usual handling. */ } if (USE_ALTIVEC_FOR_ARG_P (cum, mode, type, named)) if (TARGET_64BIT && ! cum->prototype) { /* Vector parameters get passed in vector register and also in GPRs or memory, in absence of prototype. */ int align_words; rtx slot; align_words = (cum->words + 1) & ~1; if (align_words >= GP_ARG_NUM_REG) { slot = NULL_RTX; } else { slot = gen_rtx_REG (mode, GP_ARG_MIN_REG + align_words); } return gen_rtx_PARALLEL (mode, gen_rtvec (2, gen_rtx_EXPR_LIST (VOIDmode, slot, const0_rtx), gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (mode, cum->vregno), const0_rtx))); } else return gen_rtx_REG (mode, cum->vregno); else if (TARGET_ALTIVEC_ABI && (ALTIVEC_VECTOR_MODE (mode) || VSX_VECTOR_MODE (mode) || (type && TREE_CODE (type) == VECTOR_TYPE && int_size_in_bytes (type) == 16))) { if (named || abi == ABI_V4) return NULL_RTX; else { /* Vector parameters to varargs functions under AIX or Darwin get passed in memory and possibly also in GPRs. */ int align, align_words, n_words; enum machine_mode part_mode; /* Vector parameters must be 16-byte aligned. This places them at 2 mod 4 in terms of words in 32-bit mode, since the parameter save area starts at offset 24 from the stack. In 64-bit mode, they just have to start on an even word, since the parameter save area is 16-byte aligned. */ if (TARGET_32BIT) align = (2 - cum->words) & 3; else align = cum->words & 1; align_words = cum->words + align; /* Out of registers? Memory, then. */ if (align_words >= GP_ARG_NUM_REG) return NULL_RTX; if (TARGET_32BIT && TARGET_POWERPC64) return rs6000_mixed_function_arg (mode, type, align_words); /* The vector value goes in GPRs. Only the part of the value in GPRs is reported here. */ part_mode = mode; n_words = rs6000_arg_size (mode, type); if (align_words + n_words > GP_ARG_NUM_REG) /* Fortunately, there are only two possibilities, the value is either wholly in GPRs or half in GPRs and half not. */ part_mode = DImode; return gen_rtx_REG (part_mode, GP_ARG_MIN_REG + align_words); } } else if (TARGET_SPE_ABI && TARGET_SPE && (SPE_VECTOR_MODE (mode) || (TARGET_E500_DOUBLE && (mode == DFmode || mode == DCmode || mode == TFmode || mode == TCmode)))) return rs6000_spe_function_arg (cum, mode, type); else if (abi == ABI_V4) { if (TARGET_HARD_FLOAT && TARGET_FPRS && ((TARGET_SINGLE_FLOAT && mode == SFmode) || (TARGET_DOUBLE_FLOAT && mode == DFmode) || (mode == TFmode && !TARGET_IEEEQUAD) || mode == SDmode || mode == DDmode || mode == TDmode)) { /* _Decimal128 must use an even/odd register pair. This assumes that the register number is odd when fregno is odd. */ if (mode == TDmode && (cum->fregno % 2) == 1) cum->fregno++; if (cum->fregno + (mode == TFmode || mode == TDmode ? 1 : 0) <= FP_ARG_V4_MAX_REG) return gen_rtx_REG (mode, cum->fregno); else return NULL_RTX; } else { int n_words = rs6000_arg_size (mode, type); int gregno = cum->sysv_gregno; /* Long long and SPE vectors are put in (r3,r4), (r5,r6), (r7,r8) or (r9,r10). As does any other 2 word item such as complex int due to a historical mistake. */ if (n_words == 2) gregno += (1 - gregno) & 1; /* Multi-reg args are not split between registers and stack. */ if (gregno + n_words - 1 > GP_ARG_MAX_REG) return NULL_RTX; if (TARGET_32BIT && TARGET_POWERPC64) return rs6000_mixed_function_arg (mode, type, gregno - GP_ARG_MIN_REG); return gen_rtx_REG (mode, gregno); } } else { int align_words = rs6000_parm_start (mode, type, cum->words); /* _Decimal128 must be passed in an even/odd float register pair. This assumes that the register number is odd when fregno is odd. */ if (mode == TDmode && (cum->fregno % 2) == 1) cum->fregno++; if (USE_FP_FOR_ARG_P (cum, mode, type)) { rtx rvec[GP_ARG_NUM_REG + 1]; rtx r; int k; bool needs_psave; enum machine_mode fmode = mode; unsigned long n_fpreg = (GET_MODE_SIZE (mode) + 7) >> 3; if (cum->fregno + n_fpreg > FP_ARG_MAX_REG + 1) { /* Currently, we only ever need one reg here because complex doubles are split. */ gcc_assert (cum->fregno == FP_ARG_MAX_REG && (fmode == TFmode || fmode == TDmode)); /* Long double or _Decimal128 split over regs and memory. */ fmode = DECIMAL_FLOAT_MODE_P (fmode) ? DDmode : DFmode; } /* Do we also need to pass this arg in the parameter save area? */ needs_psave = (type && (cum->nargs_prototype <= 0 || (DEFAULT_ABI == ABI_AIX && TARGET_XL_COMPAT && align_words >= GP_ARG_NUM_REG))); if (!needs_psave && mode == fmode) return gen_rtx_REG (fmode, cum->fregno); k = 0; if (needs_psave) { /* Describe the part that goes in gprs or the stack. This piece must come first, before the fprs. */ if (align_words < GP_ARG_NUM_REG) { unsigned long n_words = rs6000_arg_size (mode, type); if (align_words + n_words > GP_ARG_NUM_REG || (TARGET_32BIT && TARGET_POWERPC64)) { /* If this is partially on the stack, then we only include the portion actually in registers here. */ enum machine_mode rmode = TARGET_32BIT ? SImode : DImode; rtx off; int i = 0; if (align_words + n_words > GP_ARG_NUM_REG) /* Not all of the arg fits in gprs. Say that it goes in memory too, using a magic NULL_RTX component. Also see comment in rs6000_mixed_function_arg for why the normal function_arg_partial_nregs scheme doesn't work in this case. */ rvec[k++] = gen_rtx_EXPR_LIST (VOIDmode, NULL_RTX, const0_rtx); do { r = gen_rtx_REG (rmode, GP_ARG_MIN_REG + align_words); off = GEN_INT (i++ * GET_MODE_SIZE (rmode)); rvec[k++] = gen_rtx_EXPR_LIST (VOIDmode, r, off); } while (++align_words < GP_ARG_NUM_REG && --n_words != 0); } else { /* The whole arg fits in gprs. */ r = gen_rtx_REG (mode, GP_ARG_MIN_REG + align_words); rvec[k++] = gen_rtx_EXPR_LIST (VOIDmode, r, const0_rtx); } } else /* It's entirely in memory. */ rvec[k++] = gen_rtx_EXPR_LIST (VOIDmode, NULL_RTX, const0_rtx); } /* Describe where this piece goes in the fprs. */ r = gen_rtx_REG (fmode, cum->fregno); rvec[k++] = gen_rtx_EXPR_LIST (VOIDmode, r, const0_rtx); return gen_rtx_PARALLEL (mode, gen_rtvec_v (k, rvec)); } else if (align_words < GP_ARG_NUM_REG) { if (TARGET_32BIT && TARGET_POWERPC64) return rs6000_mixed_function_arg (mode, type, align_words); if (mode == BLKmode) mode = Pmode; return gen_rtx_REG (mode, GP_ARG_MIN_REG + align_words); } else return NULL_RTX; } } /* For an arg passed partly in registers and partly in memory, this is the number of bytes passed in registers. For args passed entirely in registers or entirely in memory, zero. When an arg is described by a PARALLEL, perhaps using more than one register type, this function returns the number of bytes used by the first element of the PARALLEL. */ static int rs6000_arg_partial_bytes (CUMULATIVE_ARGS *cum, enum machine_mode mode, tree type, bool named) { int ret = 0; int align_words; if (DEFAULT_ABI == ABI_V4) return 0; if (USE_ALTIVEC_FOR_ARG_P (cum, mode, type, named) && cum->nargs_prototype >= 0) return 0; /* In this complicated case we just disable the partial_nregs code. */ if (rs6000_darwin64_abi && mode == BLKmode && TREE_CODE (type) == RECORD_TYPE && int_size_in_bytes (type) > 0) return 0; align_words = rs6000_parm_start (mode, type, cum->words); if (USE_FP_FOR_ARG_P (cum, mode, type)) { /* If we are passing this arg in the fixed parameter save area (gprs or memory) as well as fprs, then this function should return the number of partial bytes passed in the parameter save area rather than partial bytes passed in fprs. */ if (type && (cum->nargs_prototype <= 0 || (DEFAULT_ABI == ABI_AIX && TARGET_XL_COMPAT && align_words >= GP_ARG_NUM_REG))) return 0; else if (cum->fregno + ((GET_MODE_SIZE (mode) + 7) >> 3) > FP_ARG_MAX_REG + 1) ret = (FP_ARG_MAX_REG + 1 - cum->fregno) * 8; else if (cum->nargs_prototype >= 0) return 0; } if (align_words < GP_ARG_NUM_REG && GP_ARG_NUM_REG < align_words + rs6000_arg_size (mode, type)) ret = (GP_ARG_NUM_REG - align_words) * (TARGET_32BIT ? 4 : 8); if (ret != 0 && TARGET_DEBUG_ARG) fprintf (stderr, "rs6000_arg_partial_bytes: %d\n", ret); return ret; } /* A C expression that indicates when an argument must be passed by reference. If nonzero for an argument, a copy of that argument is made in memory and a pointer to the argument is passed instead of the argument itself. The pointer is passed in whatever way is appropriate for passing a pointer to that type. Under V.4, aggregates and long double are passed by reference. As an extension to all 32-bit ABIs, AltiVec vectors are passed by reference unless the AltiVec vector extension ABI is in force. As an extension to all ABIs, variable sized types are passed by reference. */ static bool rs6000_pass_by_reference (CUMULATIVE_ARGS *cum ATTRIBUTE_UNUSED, enum machine_mode mode, const_tree type, bool named ATTRIBUTE_UNUSED) { if (DEFAULT_ABI == ABI_V4 && TARGET_IEEEQUAD && mode == TFmode) { if (TARGET_DEBUG_ARG) fprintf (stderr, "function_arg_pass_by_reference: V4 long double\n"); return 1; } if (!type) return 0; if (DEFAULT_ABI == ABI_V4 && AGGREGATE_TYPE_P (type)) { if (TARGET_DEBUG_ARG) fprintf (stderr, "function_arg_pass_by_reference: V4 aggregate\n"); return 1; } if (int_size_in_bytes (type) < 0) { if (TARGET_DEBUG_ARG) fprintf (stderr, "function_arg_pass_by_reference: variable size\n"); return 1; } /* Allow -maltivec -mabi=no-altivec without warning. Altivec vector modes only exist for GCC vector types if -maltivec. */ if (TARGET_32BIT && !TARGET_ALTIVEC_ABI && ALTIVEC_VECTOR_MODE (mode)) { if (TARGET_DEBUG_ARG) fprintf (stderr, "function_arg_pass_by_reference: AltiVec\n"); return 1; } /* Pass synthetic vectors in memory. */ if (TREE_CODE (type) == VECTOR_TYPE && int_size_in_bytes (type) > (TARGET_ALTIVEC_ABI ? 16 : 8)) { static bool warned_for_pass_big_vectors = false; if (TARGET_DEBUG_ARG) fprintf (stderr, "function_arg_pass_by_reference: synthetic vector\n"); if (!warned_for_pass_big_vectors) { warning (0, "GCC vector passed by reference: " "non-standard ABI extension with no compatibility guarantee"); warned_for_pass_big_vectors = true; } return 1; } return 0; } static void rs6000_move_block_from_reg (int regno, rtx x, int nregs) { int i; enum machine_mode reg_mode = TARGET_32BIT ? SImode : DImode; if (nregs == 0) return; for (i = 0; i < nregs; i++) { rtx tem = adjust_address_nv (x, reg_mode, i * GET_MODE_SIZE (reg_mode)); if (reload_completed) { if (! strict_memory_address_p (reg_mode, XEXP (tem, 0))) tem = NULL_RTX; else tem = simplify_gen_subreg (reg_mode, x, BLKmode, i * GET_MODE_SIZE (reg_mode)); } else tem = replace_equiv_address (tem, XEXP (tem, 0)); gcc_assert (tem); emit_move_insn (tem, gen_rtx_REG (reg_mode, regno + i)); } } /* Perform any needed actions needed for a function that is receiving a variable number of arguments. CUM is as above. MODE and TYPE are the mode and type of the current parameter. PRETEND_SIZE is a variable that should be set to the amount of stack that must be pushed by the prolog to pretend that our caller pushed it. Normally, this macro will push all remaining incoming registers on the stack and set PRETEND_SIZE to the length of the registers pushed. */ static void setup_incoming_varargs (CUMULATIVE_ARGS *cum, enum machine_mode mode, tree type, int *pretend_size ATTRIBUTE_UNUSED, int no_rtl) { CUMULATIVE_ARGS next_cum; int reg_size = TARGET_32BIT ? 4 : 8; rtx save_area = NULL_RTX, mem; int first_reg_offset; alias_set_type set; /* Skip the last named argument. */ next_cum = *cum; function_arg_advance (&next_cum, mode, type, 1, 0); if (DEFAULT_ABI == ABI_V4) { first_reg_offset = next_cum.sysv_gregno - GP_ARG_MIN_REG; if (! no_rtl) { int gpr_reg_num = 0, gpr_size = 0, fpr_size = 0; HOST_WIDE_INT offset = 0; /* Try to optimize the size of the varargs save area. The ABI requires that ap.reg_save_area is doubleword aligned, but we don't need to allocate space for all the bytes, only those to which we actually will save anything. */ if (cfun->va_list_gpr_size && first_reg_offset < GP_ARG_NUM_REG) gpr_reg_num = GP_ARG_NUM_REG - first_reg_offset; if (TARGET_HARD_FLOAT && TARGET_FPRS && next_cum.fregno <= FP_ARG_V4_MAX_REG && cfun->va_list_fpr_size) { if (gpr_reg_num) fpr_size = (next_cum.fregno - FP_ARG_MIN_REG) * UNITS_PER_FP_WORD; if (cfun->va_list_fpr_size < FP_ARG_V4_MAX_REG + 1 - next_cum.fregno) fpr_size += cfun->va_list_fpr_size * UNITS_PER_FP_WORD; else fpr_size += (FP_ARG_V4_MAX_REG + 1 - next_cum.fregno) * UNITS_PER_FP_WORD; } if (gpr_reg_num) { offset = -((first_reg_offset * reg_size) & ~7); if (!fpr_size && gpr_reg_num > cfun->va_list_gpr_size) { gpr_reg_num = cfun->va_list_gpr_size; if (reg_size == 4 && (first_reg_offset & 1)) gpr_reg_num++; } gpr_size = (gpr_reg_num * reg_size + 7) & ~7; } else if (fpr_size) offset = - (int) (next_cum.fregno - FP_ARG_MIN_REG) * UNITS_PER_FP_WORD - (int) (GP_ARG_NUM_REG * reg_size); if (gpr_size + fpr_size) { rtx reg_save_area = assign_stack_local (BLKmode, gpr_size + fpr_size, 64); gcc_assert (GET_CODE (reg_save_area) == MEM); reg_save_area = XEXP (reg_save_area, 0); if (GET_CODE (reg_save_area) == PLUS) { gcc_assert (XEXP (reg_save_area, 0) == virtual_stack_vars_rtx); gcc_assert (GET_CODE (XEXP (reg_save_area, 1)) == CONST_INT); offset += INTVAL (XEXP (reg_save_area, 1)); } else gcc_assert (reg_save_area == virtual_stack_vars_rtx); } cfun->machine->varargs_save_offset = offset; save_area = plus_constant (virtual_stack_vars_rtx, offset); } } else { first_reg_offset = next_cum.words; save_area = virtual_incoming_args_rtx; if (targetm.calls.must_pass_in_stack (mode, type)) first_reg_offset += rs6000_arg_size (TYPE_MODE (type), type); } set = get_varargs_alias_set (); if (! no_rtl && first_reg_offset < GP_ARG_NUM_REG && cfun->va_list_gpr_size) { int nregs = GP_ARG_NUM_REG - first_reg_offset; if (va_list_gpr_counter_field) { /* V4 va_list_gpr_size counts number of registers needed. */ if (nregs > cfun->va_list_gpr_size) nregs = cfun->va_list_gpr_size; } else { /* char * va_list instead counts number of bytes needed. */ if (nregs > cfun->va_list_gpr_size / reg_size) nregs = cfun->va_list_gpr_size / reg_size; } mem = gen_rtx_MEM (BLKmode, plus_constant (save_area, first_reg_offset * reg_size)); MEM_NOTRAP_P (mem) = 1; set_mem_alias_set (mem, set); set_mem_align (mem, BITS_PER_WORD); rs6000_move_block_from_reg (GP_ARG_MIN_REG + first_reg_offset, mem, nregs); } /* Save FP registers if needed. */ if (DEFAULT_ABI == ABI_V4 && TARGET_HARD_FLOAT && TARGET_FPRS && ! no_rtl && next_cum.fregno <= FP_ARG_V4_MAX_REG && cfun->va_list_fpr_size) { int fregno = next_cum.fregno, nregs; rtx cr1 = gen_rtx_REG (CCmode, CR1_REGNO); rtx lab = gen_label_rtx (); int off = (GP_ARG_NUM_REG * reg_size) + ((fregno - FP_ARG_MIN_REG) * UNITS_PER_FP_WORD); emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, gen_rtx_IF_THEN_ELSE (VOIDmode, gen_rtx_NE (VOIDmode, cr1, const0_rtx), gen_rtx_LABEL_REF (VOIDmode, lab), pc_rtx))); for (nregs = 0; fregno <= FP_ARG_V4_MAX_REG && nregs < cfun->va_list_fpr_size; fregno++, off += UNITS_PER_FP_WORD, nregs++) { mem = gen_rtx_MEM ((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode, plus_constant (save_area, off)); MEM_NOTRAP_P (mem) = 1; set_mem_alias_set (mem, set); set_mem_align (mem, GET_MODE_ALIGNMENT ( (TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode)); emit_move_insn (mem, gen_rtx_REG ( (TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode, fregno)); } emit_label (lab); } } /* Create the va_list data type. */ static tree rs6000_build_builtin_va_list (void) { tree f_gpr, f_fpr, f_res, f_ovf, f_sav, record, type_decl; /* For AIX, prefer 'char *' because that's what the system header files like. */ if (DEFAULT_ABI != ABI_V4) return build_pointer_type (char_type_node); record = (*lang_hooks.types.make_type) (RECORD_TYPE); type_decl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__va_list_tag"), record); f_gpr = build_decl (BUILTINS_LOCATION, FIELD_DECL, get_identifier ("gpr"), unsigned_char_type_node); f_fpr = build_decl (BUILTINS_LOCATION, FIELD_DECL, get_identifier ("fpr"), unsigned_char_type_node); /* Give the two bytes of padding a name, so that -Wpadded won't warn on every user file. */ f_res = build_decl (BUILTINS_LOCATION, FIELD_DECL, get_identifier ("reserved"), short_unsigned_type_node); f_ovf = build_decl (BUILTINS_LOCATION, FIELD_DECL, get_identifier ("overflow_arg_area"), ptr_type_node); f_sav = build_decl (BUILTINS_LOCATION, FIELD_DECL, get_identifier ("reg_save_area"), ptr_type_node); va_list_gpr_counter_field = f_gpr; va_list_fpr_counter_field = f_fpr; DECL_FIELD_CONTEXT (f_gpr) = record; DECL_FIELD_CONTEXT (f_fpr) = record; DECL_FIELD_CONTEXT (f_res) = record; DECL_FIELD_CONTEXT (f_ovf) = record; DECL_FIELD_CONTEXT (f_sav) = record; TREE_CHAIN (record) = type_decl; TYPE_NAME (record) = type_decl; TYPE_FIELDS (record) = f_gpr; TREE_CHAIN (f_gpr) = f_fpr; TREE_CHAIN (f_fpr) = f_res; TREE_CHAIN (f_res) = f_ovf; TREE_CHAIN (f_ovf) = f_sav; layout_type (record); /* The correct type is an array type of one element. */ return build_array_type (record, build_index_type (size_zero_node)); } /* Implement va_start. */ static void rs6000_va_start (tree valist, rtx nextarg) { HOST_WIDE_INT words, n_gpr, n_fpr; tree f_gpr, f_fpr, f_res, f_ovf, f_sav; tree gpr, fpr, ovf, sav, t; /* Only SVR4 needs something special. */ if (DEFAULT_ABI != ABI_V4) { std_expand_builtin_va_start (valist, nextarg); return; } f_gpr = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); f_fpr = TREE_CHAIN (f_gpr); f_res = TREE_CHAIN (f_fpr); f_ovf = TREE_CHAIN (f_res); f_sav = TREE_CHAIN (f_ovf); valist = build_va_arg_indirect_ref (valist); gpr = build3 (COMPONENT_REF, TREE_TYPE (f_gpr), valist, f_gpr, NULL_TREE); fpr = build3 (COMPONENT_REF, TREE_TYPE (f_fpr), unshare_expr (valist), f_fpr, NULL_TREE); ovf = build3 (COMPONENT_REF, TREE_TYPE (f_ovf), unshare_expr (valist), f_ovf, NULL_TREE); sav = build3 (COMPONENT_REF, TREE_TYPE (f_sav), unshare_expr (valist), f_sav, NULL_TREE); /* Count number of gp and fp argument registers used. */ words = crtl->args.info.words; n_gpr = MIN (crtl->args.info.sysv_gregno - GP_ARG_MIN_REG, GP_ARG_NUM_REG); n_fpr = MIN (crtl->args.info.fregno - FP_ARG_MIN_REG, FP_ARG_NUM_REG); if (TARGET_DEBUG_ARG) fprintf (stderr, "va_start: words = "HOST_WIDE_INT_PRINT_DEC", n_gpr = " HOST_WIDE_INT_PRINT_DEC", n_fpr = "HOST_WIDE_INT_PRINT_DEC"\n", words, n_gpr, n_fpr); if (cfun->va_list_gpr_size) { t = build2 (MODIFY_EXPR, TREE_TYPE (gpr), gpr, build_int_cst (NULL_TREE, n_gpr)); TREE_SIDE_EFFECTS (t) = 1; expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); } if (cfun->va_list_fpr_size) { t = build2 (MODIFY_EXPR, TREE_TYPE (fpr), fpr, build_int_cst (NULL_TREE, n_fpr)); TREE_SIDE_EFFECTS (t) = 1; expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); } /* Find the overflow area. */ t = make_tree (TREE_TYPE (ovf), virtual_incoming_args_rtx); if (words != 0) t = build2 (POINTER_PLUS_EXPR, TREE_TYPE (ovf), t, size_int (words * UNITS_PER_WORD)); t = build2 (MODIFY_EXPR, TREE_TYPE (ovf), ovf, t); TREE_SIDE_EFFECTS (t) = 1; expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); /* If there were no va_arg invocations, don't set up the register save area. */ if (!cfun->va_list_gpr_size && !cfun->va_list_fpr_size && n_gpr < GP_ARG_NUM_REG && n_fpr < FP_ARG_V4_MAX_REG) return; /* Find the register save area. */ t = make_tree (TREE_TYPE (sav), virtual_stack_vars_rtx); if (cfun->machine->varargs_save_offset) t = build2 (POINTER_PLUS_EXPR, TREE_TYPE (sav), t, size_int (cfun->machine->varargs_save_offset)); t = build2 (MODIFY_EXPR, TREE_TYPE (sav), sav, t); TREE_SIDE_EFFECTS (t) = 1; expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); } /* Implement va_arg. */ tree rs6000_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p, gimple_seq *post_p) { tree f_gpr, f_fpr, f_res, f_ovf, f_sav; tree gpr, fpr, ovf, sav, reg, t, u; int size, rsize, n_reg, sav_ofs, sav_scale; tree lab_false, lab_over, addr; int align; tree ptrtype = build_pointer_type_for_mode (type, ptr_mode, true); int regalign = 0; gimple stmt; if (pass_by_reference (NULL, TYPE_MODE (type), type, false)) { t = rs6000_gimplify_va_arg (valist, ptrtype, pre_p, post_p); return build_va_arg_indirect_ref (t); } if (DEFAULT_ABI != ABI_V4) { if (targetm.calls.split_complex_arg && TREE_CODE (type) == COMPLEX_TYPE) { tree elem_type = TREE_TYPE (type); enum machine_mode elem_mode = TYPE_MODE (elem_type); int elem_size = GET_MODE_SIZE (elem_mode); if (elem_size < UNITS_PER_WORD) { tree real_part, imag_part; gimple_seq post = NULL; real_part = rs6000_gimplify_va_arg (valist, elem_type, pre_p, &post); /* Copy the value into a temporary, lest the formal temporary be reused out from under us. */ real_part = get_initialized_tmp_var (real_part, pre_p, &post); gimple_seq_add_seq (pre_p, post); imag_part = rs6000_gimplify_va_arg (valist, elem_type, pre_p, post_p); return build2 (COMPLEX_EXPR, type, real_part, imag_part); } } return std_gimplify_va_arg_expr (valist, type, pre_p, post_p); } f_gpr = TYPE_FIELDS (TREE_TYPE (va_list_type_node)); f_fpr = TREE_CHAIN (f_gpr); f_res = TREE_CHAIN (f_fpr); f_ovf = TREE_CHAIN (f_res); f_sav = TREE_CHAIN (f_ovf); valist = build_va_arg_indirect_ref (valist); gpr = build3 (COMPONENT_REF, TREE_TYPE (f_gpr), valist, f_gpr, NULL_TREE); fpr = build3 (COMPONENT_REF, TREE_TYPE (f_fpr), unshare_expr (valist), f_fpr, NULL_TREE); ovf = build3 (COMPONENT_REF, TREE_TYPE (f_ovf), unshare_expr (valist), f_ovf, NULL_TREE); sav = build3 (COMPONENT_REF, TREE_TYPE (f_sav), unshare_expr (valist), f_sav, NULL_TREE); size = int_size_in_bytes (type); rsize = (size + 3) / 4; align = 1; if (TARGET_HARD_FLOAT && TARGET_FPRS && ((TARGET_SINGLE_FLOAT && TYPE_MODE (type) == SFmode) || (TARGET_DOUBLE_FLOAT && (TYPE_MODE (type) == DFmode || TYPE_MODE (type) == TFmode || TYPE_MODE (type) == SDmode || TYPE_MODE (type) == DDmode || TYPE_MODE (type) == TDmode)))) { /* FP args go in FP registers, if present. */ reg = fpr; n_reg = (size + 7) / 8; sav_ofs = ((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? 8 : 4) * 4; sav_scale = ((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? 8 : 4); if (TYPE_MODE (type) != SFmode && TYPE_MODE (type) != SDmode) align = 8; } else { /* Otherwise into GP registers. */ reg = gpr; n_reg = rsize; sav_ofs = 0; sav_scale = 4; if (n_reg == 2) align = 8; } /* Pull the value out of the saved registers.... */ lab_over = NULL; addr = create_tmp_var (ptr_type_node, "addr"); /* AltiVec vectors never go in registers when -mabi=altivec. */ if (TARGET_ALTIVEC_ABI && ALTIVEC_VECTOR_MODE (TYPE_MODE (type))) align = 16; else { lab_false = create_artificial_label (input_location); lab_over = create_artificial_label (input_location); /* Long long and SPE vectors are aligned in the registers. As are any other 2 gpr item such as complex int due to a historical mistake. */ u = reg; if (n_reg == 2 && reg == gpr) { regalign = 1; u = build2 (BIT_AND_EXPR, TREE_TYPE (reg), unshare_expr (reg), build_int_cst (TREE_TYPE (reg), n_reg - 1)); u = build2 (POSTINCREMENT_EXPR, TREE_TYPE (reg), unshare_expr (reg), u); } /* _Decimal128 is passed in even/odd fpr pairs; the stored reg number is 0 for f1, so we want to make it odd. */ else if (reg == fpr && TYPE_MODE (type) == TDmode) { t = build2 (BIT_IOR_EXPR, TREE_TYPE (reg), unshare_expr (reg), build_int_cst (TREE_TYPE (reg), 1)); u = build2 (MODIFY_EXPR, void_type_node, unshare_expr (reg), t); } t = fold_convert (TREE_TYPE (reg), size_int (8 - n_reg + 1)); t = build2 (GE_EXPR, boolean_type_node, u, t); u = build1 (GOTO_EXPR, void_type_node, lab_false); t = build3 (COND_EXPR, void_type_node, t, u, NULL_TREE); gimplify_and_add (t, pre_p); t = sav; if (sav_ofs) t = build2 (POINTER_PLUS_EXPR, ptr_type_node, sav, size_int (sav_ofs)); u = build2 (POSTINCREMENT_EXPR, TREE_TYPE (reg), unshare_expr (reg), build_int_cst (TREE_TYPE (reg), n_reg)); u = fold_convert (sizetype, u); u = build2 (MULT_EXPR, sizetype, u, size_int (sav_scale)); t = build2 (POINTER_PLUS_EXPR, ptr_type_node, t, u); /* _Decimal32 varargs are located in the second word of the 64-bit FP register for 32-bit binaries. */ if (!TARGET_POWERPC64 && TARGET_HARD_FLOAT && TARGET_FPRS && TYPE_MODE (type) == SDmode) t = build2 (POINTER_PLUS_EXPR, TREE_TYPE (t), t, size_int (size)); gimplify_assign (addr, t, pre_p); gimple_seq_add_stmt (pre_p, gimple_build_goto (lab_over)); stmt = gimple_build_label (lab_false); gimple_seq_add_stmt (pre_p, stmt); if ((n_reg == 2 && !regalign) || n_reg > 2) { /* Ensure that we don't find any more args in regs. Alignment has taken care of for special cases. */ gimplify_assign (reg, build_int_cst (TREE_TYPE (reg), 8), pre_p); } } /* ... otherwise out of the overflow area. */ /* Care for on-stack alignment if needed. */ t = ovf; if (align != 1) { t = build2 (POINTER_PLUS_EXPR, TREE_TYPE (t), t, size_int (align - 1)); t = fold_convert (sizetype, t); t = build2 (BIT_AND_EXPR, TREE_TYPE (t), t, size_int (-align)); t = fold_convert (TREE_TYPE (ovf), t); } gimplify_expr (&t, pre_p, NULL, is_gimple_val, fb_rvalue); gimplify_assign (unshare_expr (addr), t, pre_p); t = build2 (POINTER_PLUS_EXPR, TREE_TYPE (t), t, size_int (size)); gimplify_assign (unshare_expr (ovf), t, pre_p); if (lab_over) { stmt = gimple_build_label (lab_over); gimple_seq_add_stmt (pre_p, stmt); } if (STRICT_ALIGNMENT && (TYPE_ALIGN (type) > (unsigned) BITS_PER_UNIT * (align < 4 ? 4 : align))) { /* The value (of type complex double, for example) may not be aligned in memory in the saved registers, so copy via a temporary. (This is the same code as used for SPARC.) */ tree tmp = create_tmp_var (type, "va_arg_tmp"); tree dest_addr = build_fold_addr_expr (tmp); tree copy = build_call_expr (implicit_built_in_decls[BUILT_IN_MEMCPY], 3, dest_addr, addr, size_int (rsize * 4)); gimplify_and_add (copy, pre_p); addr = dest_addr; } addr = fold_convert (ptrtype, addr); return build_va_arg_indirect_ref (addr); } /* Builtins. */ static void def_builtin (int mask, const char *name, tree type, int code) { if ((mask & target_flags) || TARGET_PAIRED_FLOAT) { tree t; if (rs6000_builtin_decls[code]) fatal_error ("internal error: builtin function to %s already processed.", name); rs6000_builtin_decls[code] = t = add_builtin_function (name, type, code, BUILT_IN_MD, NULL, NULL_TREE); gcc_assert (code >= 0 && code < (int)RS6000_BUILTIN_COUNT); switch (builtin_classify[code]) { default: gcc_unreachable (); /* assume builtin can do anything. */ case RS6000_BTC_MISC: break; /* const function, function only depends on the inputs. */ case RS6000_BTC_CONST: TREE_READONLY (t) = 1; TREE_NOTHROW (t) = 1; break; /* pure function, function can read global memory. */ case RS6000_BTC_PURE: DECL_PURE_P (t) = 1; TREE_NOTHROW (t) = 1; break; /* Function is a math function. If rounding mode is on, then treat the function as not reading global memory, but it can have arbitrary side effects. If it is off, then assume the function is a const function. This mimics the ATTR_MATHFN_FPROUNDING attribute in builtin-attribute.def that is used for the math functions. */ case RS6000_BTC_FP_PURE: TREE_NOTHROW (t) = 1; if (flag_rounding_math) { DECL_PURE_P (t) = 1; DECL_IS_NOVOPS (t) = 1; } else TREE_READONLY (t) = 1; break; } } } /* Simple ternary operations: VECd = foo (VECa, VECb, VECc). */ static const struct builtin_description bdesc_3arg[] = { { MASK_ALTIVEC, CODE_FOR_altivec_vmaddfp, "__builtin_altivec_vmaddfp", ALTIVEC_BUILTIN_VMADDFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vmhaddshs, "__builtin_altivec_vmhaddshs", ALTIVEC_BUILTIN_VMHADDSHS }, { MASK_ALTIVEC, CODE_FOR_altivec_vmhraddshs, "__builtin_altivec_vmhraddshs", ALTIVEC_BUILTIN_VMHRADDSHS }, { MASK_ALTIVEC, CODE_FOR_altivec_vmladduhm, "__builtin_altivec_vmladduhm", ALTIVEC_BUILTIN_VMLADDUHM}, { MASK_ALTIVEC, CODE_FOR_altivec_vmsumubm, "__builtin_altivec_vmsumubm", ALTIVEC_BUILTIN_VMSUMUBM }, { MASK_ALTIVEC, CODE_FOR_altivec_vmsummbm, "__builtin_altivec_vmsummbm", ALTIVEC_BUILTIN_VMSUMMBM }, { MASK_ALTIVEC, CODE_FOR_altivec_vmsumuhm, "__builtin_altivec_vmsumuhm", ALTIVEC_BUILTIN_VMSUMUHM }, { MASK_ALTIVEC, CODE_FOR_altivec_vmsumshm, "__builtin_altivec_vmsumshm", ALTIVEC_BUILTIN_VMSUMSHM }, { MASK_ALTIVEC, CODE_FOR_altivec_vmsumuhs, "__builtin_altivec_vmsumuhs", ALTIVEC_BUILTIN_VMSUMUHS }, { MASK_ALTIVEC, CODE_FOR_altivec_vmsumshs, "__builtin_altivec_vmsumshs", ALTIVEC_BUILTIN_VMSUMSHS }, { MASK_ALTIVEC, CODE_FOR_altivec_vnmsubfp, "__builtin_altivec_vnmsubfp", ALTIVEC_BUILTIN_VNMSUBFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v2df, "__builtin_altivec_vperm_2df", ALTIVEC_BUILTIN_VPERM_2DF }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v2di, "__builtin_altivec_vperm_2di", ALTIVEC_BUILTIN_VPERM_2DI }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v4sf, "__builtin_altivec_vperm_4sf", ALTIVEC_BUILTIN_VPERM_4SF }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v4si, "__builtin_altivec_vperm_4si", ALTIVEC_BUILTIN_VPERM_4SI }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v8hi, "__builtin_altivec_vperm_8hi", ALTIVEC_BUILTIN_VPERM_8HI }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v16qi_uns, "__builtin_altivec_vperm_16qi", ALTIVEC_BUILTIN_VPERM_16QI }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v2di_uns, "__builtin_altivec_vperm_2di_uns", ALTIVEC_BUILTIN_VPERM_2DI_UNS }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v4si_uns, "__builtin_altivec_vperm_4si_uns", ALTIVEC_BUILTIN_VPERM_4SI_UNS }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v8hi_uns, "__builtin_altivec_vperm_8hi_uns", ALTIVEC_BUILTIN_VPERM_8HI_UNS }, { MASK_ALTIVEC, CODE_FOR_altivec_vperm_v16qi_uns, "__builtin_altivec_vperm_16qi_uns", ALTIVEC_BUILTIN_VPERM_16QI_UNS }, { MASK_ALTIVEC, CODE_FOR_vector_select_v4sf, "__builtin_altivec_vsel_4sf", ALTIVEC_BUILTIN_VSEL_4SF }, { MASK_ALTIVEC, CODE_FOR_vector_select_v4si, "__builtin_altivec_vsel_4si", ALTIVEC_BUILTIN_VSEL_4SI }, { MASK_ALTIVEC, CODE_FOR_vector_select_v8hi, "__builtin_altivec_vsel_8hi", ALTIVEC_BUILTIN_VSEL_8HI }, { MASK_ALTIVEC, CODE_FOR_vector_select_v16qi, "__builtin_altivec_vsel_16qi", ALTIVEC_BUILTIN_VSEL_16QI }, { MASK_ALTIVEC, CODE_FOR_vector_select_v2df, "__builtin_altivec_vsel_2df", ALTIVEC_BUILTIN_VSEL_2DF }, { MASK_ALTIVEC, CODE_FOR_vector_select_v2di, "__builtin_altivec_vsel_2di", ALTIVEC_BUILTIN_VSEL_2DI }, { MASK_ALTIVEC, CODE_FOR_vector_select_v4si_uns, "__builtin_altivec_vsel_4si_uns", ALTIVEC_BUILTIN_VSEL_4SI_UNS }, { MASK_ALTIVEC, CODE_FOR_vector_select_v8hi_uns, "__builtin_altivec_vsel_8hi_uns", ALTIVEC_BUILTIN_VSEL_8HI_UNS }, { MASK_ALTIVEC, CODE_FOR_vector_select_v16qi_uns, "__builtin_altivec_vsel_16qi_uns", ALTIVEC_BUILTIN_VSEL_16QI_UNS }, { MASK_ALTIVEC, CODE_FOR_vector_select_v2di_uns, "__builtin_altivec_vsel_2di_uns", ALTIVEC_BUILTIN_VSEL_2DI_UNS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsldoi_v16qi, "__builtin_altivec_vsldoi_16qi", ALTIVEC_BUILTIN_VSLDOI_16QI }, { MASK_ALTIVEC, CODE_FOR_altivec_vsldoi_v8hi, "__builtin_altivec_vsldoi_8hi", ALTIVEC_BUILTIN_VSLDOI_8HI }, { MASK_ALTIVEC, CODE_FOR_altivec_vsldoi_v4si, "__builtin_altivec_vsldoi_4si", ALTIVEC_BUILTIN_VSLDOI_4SI }, { MASK_ALTIVEC, CODE_FOR_altivec_vsldoi_v4sf, "__builtin_altivec_vsldoi_4sf", ALTIVEC_BUILTIN_VSLDOI_4SF }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_madd", ALTIVEC_BUILTIN_VEC_MADD }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_madds", ALTIVEC_BUILTIN_VEC_MADDS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_mladd", ALTIVEC_BUILTIN_VEC_MLADD }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_mradds", ALTIVEC_BUILTIN_VEC_MRADDS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_msum", ALTIVEC_BUILTIN_VEC_MSUM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmsumshm", ALTIVEC_BUILTIN_VEC_VMSUMSHM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmsumuhm", ALTIVEC_BUILTIN_VEC_VMSUMUHM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmsummbm", ALTIVEC_BUILTIN_VEC_VMSUMMBM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmsumubm", ALTIVEC_BUILTIN_VEC_VMSUMUBM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_msums", ALTIVEC_BUILTIN_VEC_MSUMS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmsumshs", ALTIVEC_BUILTIN_VEC_VMSUMSHS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmsumuhs", ALTIVEC_BUILTIN_VEC_VMSUMUHS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_nmsub", ALTIVEC_BUILTIN_VEC_NMSUB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_perm", ALTIVEC_BUILTIN_VEC_PERM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_sel", ALTIVEC_BUILTIN_VEC_SEL }, { MASK_VSX, CODE_FOR_vsx_fmaddv2df4, "__builtin_vsx_xvmadddp", VSX_BUILTIN_XVMADDDP }, { MASK_VSX, CODE_FOR_vsx_fmsubv2df4, "__builtin_vsx_xvmsubdp", VSX_BUILTIN_XVMSUBDP }, { MASK_VSX, CODE_FOR_vsx_fnmaddv2df4, "__builtin_vsx_xvnmadddp", VSX_BUILTIN_XVNMADDDP }, { MASK_VSX, CODE_FOR_vsx_fnmsubv2df4, "__builtin_vsx_xvnmsubdp", VSX_BUILTIN_XVNMSUBDP }, { MASK_VSX, CODE_FOR_vsx_fmaddv4sf4, "__builtin_vsx_xvmaddsp", VSX_BUILTIN_XVMADDSP }, { MASK_VSX, CODE_FOR_vsx_fmsubv4sf4, "__builtin_vsx_xvmsubsp", VSX_BUILTIN_XVMSUBSP }, { MASK_VSX, CODE_FOR_vsx_fnmaddv4sf4, "__builtin_vsx_xvnmaddsp", VSX_BUILTIN_XVNMADDSP }, { MASK_VSX, CODE_FOR_vsx_fnmsubv4sf4, "__builtin_vsx_xvnmsubsp", VSX_BUILTIN_XVNMSUBSP }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_msub", VSX_BUILTIN_VEC_MSUB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_nmadd", VSX_BUILTIN_VEC_NMADD }, { MASK_VSX, CODE_FOR_vector_select_v2di, "__builtin_vsx_xxsel_2di", VSX_BUILTIN_XXSEL_2DI }, { MASK_VSX, CODE_FOR_vector_select_v2df, "__builtin_vsx_xxsel_2df", VSX_BUILTIN_XXSEL_2DF }, { MASK_VSX, CODE_FOR_vector_select_v4sf, "__builtin_vsx_xxsel_4sf", VSX_BUILTIN_XXSEL_4SF }, { MASK_VSX, CODE_FOR_vector_select_v4si, "__builtin_vsx_xxsel_4si", VSX_BUILTIN_XXSEL_4SI }, { MASK_VSX, CODE_FOR_vector_select_v8hi, "__builtin_vsx_xxsel_8hi", VSX_BUILTIN_XXSEL_8HI }, { MASK_VSX, CODE_FOR_vector_select_v16qi, "__builtin_vsx_xxsel_16qi", VSX_BUILTIN_XXSEL_16QI }, { MASK_VSX, CODE_FOR_vector_select_v2di_uns, "__builtin_vsx_xxsel_2di_uns", VSX_BUILTIN_XXSEL_2DI_UNS }, { MASK_VSX, CODE_FOR_vector_select_v4si_uns, "__builtin_vsx_xxsel_4si_uns", VSX_BUILTIN_XXSEL_4SI_UNS }, { MASK_VSX, CODE_FOR_vector_select_v8hi_uns, "__builtin_vsx_xxsel_8hi_uns", VSX_BUILTIN_XXSEL_8HI_UNS }, { MASK_VSX, CODE_FOR_vector_select_v16qi_uns, "__builtin_vsx_xxsel_16qi_uns", VSX_BUILTIN_XXSEL_16QI_UNS }, { MASK_VSX, CODE_FOR_altivec_vperm_v2di, "__builtin_vsx_vperm_2di", VSX_BUILTIN_VPERM_2DI }, { MASK_VSX, CODE_FOR_altivec_vperm_v2df, "__builtin_vsx_vperm_2df", VSX_BUILTIN_VPERM_2DF }, { MASK_VSX, CODE_FOR_altivec_vperm_v4sf, "__builtin_vsx_vperm_4sf", VSX_BUILTIN_VPERM_4SF }, { MASK_VSX, CODE_FOR_altivec_vperm_v4si, "__builtin_vsx_vperm_4si", VSX_BUILTIN_VPERM_4SI }, { MASK_VSX, CODE_FOR_altivec_vperm_v8hi, "__builtin_vsx_vperm_8hi", VSX_BUILTIN_VPERM_8HI }, { MASK_VSX, CODE_FOR_altivec_vperm_v16qi, "__builtin_vsx_vperm_16qi", VSX_BUILTIN_VPERM_16QI }, { MASK_VSX, CODE_FOR_altivec_vperm_v2di_uns, "__builtin_vsx_vperm_2di_uns", VSX_BUILTIN_VPERM_2DI_UNS }, { MASK_VSX, CODE_FOR_altivec_vperm_v4si_uns, "__builtin_vsx_vperm_4si_uns", VSX_BUILTIN_VPERM_4SI_UNS }, { MASK_VSX, CODE_FOR_altivec_vperm_v8hi_uns, "__builtin_vsx_vperm_8hi_uns", VSX_BUILTIN_VPERM_8HI_UNS }, { MASK_VSX, CODE_FOR_altivec_vperm_v16qi_uns, "__builtin_vsx_vperm_16qi_uns", VSX_BUILTIN_VPERM_16QI_UNS }, { MASK_VSX, CODE_FOR_vsx_xxpermdi_v2df, "__builtin_vsx_xxpermdi_2df", VSX_BUILTIN_XXPERMDI_2DF }, { MASK_VSX, CODE_FOR_vsx_xxpermdi_v2di, "__builtin_vsx_xxpermdi_2di", VSX_BUILTIN_XXPERMDI_2DI }, { MASK_VSX, CODE_FOR_vsx_xxpermdi_v4sf, "__builtin_vsx_xxpermdi_4sf", VSX_BUILTIN_XXPERMDI_4SF }, { MASK_VSX, CODE_FOR_vsx_xxpermdi_v4si, "__builtin_vsx_xxpermdi_4si", VSX_BUILTIN_XXPERMDI_4SI }, { MASK_VSX, CODE_FOR_vsx_xxpermdi_v8hi, "__builtin_vsx_xxpermdi_8hi", VSX_BUILTIN_XXPERMDI_8HI }, { MASK_VSX, CODE_FOR_vsx_xxpermdi_v16qi, "__builtin_vsx_xxpermdi_16qi", VSX_BUILTIN_XXPERMDI_16QI }, { MASK_VSX, CODE_FOR_nothing, "__builtin_vsx_xxpermdi", VSX_BUILTIN_VEC_XXPERMDI }, { MASK_VSX, CODE_FOR_vsx_set_v2df, "__builtin_vsx_set_2df", VSX_BUILTIN_SET_2DF }, { MASK_VSX, CODE_FOR_vsx_set_v2di, "__builtin_vsx_set_2di", VSX_BUILTIN_SET_2DI }, { MASK_VSX, CODE_FOR_vsx_xxsldwi_v2di, "__builtin_vsx_xxsldwi_2di", VSX_BUILTIN_XXSLDWI_2DI }, { MASK_VSX, CODE_FOR_vsx_xxsldwi_v2df, "__builtin_vsx_xxsldwi_2df", VSX_BUILTIN_XXSLDWI_2DF }, { MASK_VSX, CODE_FOR_vsx_xxsldwi_v4sf, "__builtin_vsx_xxsldwi_4sf", VSX_BUILTIN_XXSLDWI_4SF }, { MASK_VSX, CODE_FOR_vsx_xxsldwi_v4si, "__builtin_vsx_xxsldwi_4si", VSX_BUILTIN_XXSLDWI_4SI }, { MASK_VSX, CODE_FOR_vsx_xxsldwi_v8hi, "__builtin_vsx_xxsldwi_8hi", VSX_BUILTIN_XXSLDWI_8HI }, { MASK_VSX, CODE_FOR_vsx_xxsldwi_v16qi, "__builtin_vsx_xxsldwi_16qi", VSX_BUILTIN_XXSLDWI_16QI }, { MASK_VSX, CODE_FOR_nothing, "__builtin_vsx_xxsldwi", VSX_BUILTIN_VEC_XXSLDWI }, { 0, CODE_FOR_paired_msub, "__builtin_paired_msub", PAIRED_BUILTIN_MSUB }, { 0, CODE_FOR_paired_madd, "__builtin_paired_madd", PAIRED_BUILTIN_MADD }, { 0, CODE_FOR_paired_madds0, "__builtin_paired_madds0", PAIRED_BUILTIN_MADDS0 }, { 0, CODE_FOR_paired_madds1, "__builtin_paired_madds1", PAIRED_BUILTIN_MADDS1 }, { 0, CODE_FOR_paired_nmsub, "__builtin_paired_nmsub", PAIRED_BUILTIN_NMSUB }, { 0, CODE_FOR_paired_nmadd, "__builtin_paired_nmadd", PAIRED_BUILTIN_NMADD }, { 0, CODE_FOR_paired_sum0, "__builtin_paired_sum0", PAIRED_BUILTIN_SUM0 }, { 0, CODE_FOR_paired_sum1, "__builtin_paired_sum1", PAIRED_BUILTIN_SUM1 }, { 0, CODE_FOR_selv2sf4, "__builtin_paired_selv2sf4", PAIRED_BUILTIN_SELV2SF4 }, }; /* DST operations: void foo (void *, const int, const char). */ static const struct builtin_description bdesc_dst[] = { { MASK_ALTIVEC, CODE_FOR_altivec_dst, "__builtin_altivec_dst", ALTIVEC_BUILTIN_DST }, { MASK_ALTIVEC, CODE_FOR_altivec_dstt, "__builtin_altivec_dstt", ALTIVEC_BUILTIN_DSTT }, { MASK_ALTIVEC, CODE_FOR_altivec_dstst, "__builtin_altivec_dstst", ALTIVEC_BUILTIN_DSTST }, { MASK_ALTIVEC, CODE_FOR_altivec_dststt, "__builtin_altivec_dststt", ALTIVEC_BUILTIN_DSTSTT }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_dst", ALTIVEC_BUILTIN_VEC_DST }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_dstt", ALTIVEC_BUILTIN_VEC_DSTT }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_dstst", ALTIVEC_BUILTIN_VEC_DSTST }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_dststt", ALTIVEC_BUILTIN_VEC_DSTSTT } }; /* Simple binary operations: VECc = foo (VECa, VECb). */ static struct builtin_description bdesc_2arg[] = { { MASK_ALTIVEC, CODE_FOR_addv16qi3, "__builtin_altivec_vaddubm", ALTIVEC_BUILTIN_VADDUBM }, { MASK_ALTIVEC, CODE_FOR_addv8hi3, "__builtin_altivec_vadduhm", ALTIVEC_BUILTIN_VADDUHM }, { MASK_ALTIVEC, CODE_FOR_addv4si3, "__builtin_altivec_vadduwm", ALTIVEC_BUILTIN_VADDUWM }, { MASK_ALTIVEC, CODE_FOR_addv4sf3, "__builtin_altivec_vaddfp", ALTIVEC_BUILTIN_VADDFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vaddcuw, "__builtin_altivec_vaddcuw", ALTIVEC_BUILTIN_VADDCUW }, { MASK_ALTIVEC, CODE_FOR_altivec_vaddubs, "__builtin_altivec_vaddubs", ALTIVEC_BUILTIN_VADDUBS }, { MASK_ALTIVEC, CODE_FOR_altivec_vaddsbs, "__builtin_altivec_vaddsbs", ALTIVEC_BUILTIN_VADDSBS }, { MASK_ALTIVEC, CODE_FOR_altivec_vadduhs, "__builtin_altivec_vadduhs", ALTIVEC_BUILTIN_VADDUHS }, { MASK_ALTIVEC, CODE_FOR_altivec_vaddshs, "__builtin_altivec_vaddshs", ALTIVEC_BUILTIN_VADDSHS }, { MASK_ALTIVEC, CODE_FOR_altivec_vadduws, "__builtin_altivec_vadduws", ALTIVEC_BUILTIN_VADDUWS }, { MASK_ALTIVEC, CODE_FOR_altivec_vaddsws, "__builtin_altivec_vaddsws", ALTIVEC_BUILTIN_VADDSWS }, { MASK_ALTIVEC, CODE_FOR_andv4si3, "__builtin_altivec_vand", ALTIVEC_BUILTIN_VAND }, { MASK_ALTIVEC, CODE_FOR_andcv4si3, "__builtin_altivec_vandc", ALTIVEC_BUILTIN_VANDC }, { MASK_ALTIVEC, CODE_FOR_altivec_vavgub, "__builtin_altivec_vavgub", ALTIVEC_BUILTIN_VAVGUB }, { MASK_ALTIVEC, CODE_FOR_altivec_vavgsb, "__builtin_altivec_vavgsb", ALTIVEC_BUILTIN_VAVGSB }, { MASK_ALTIVEC, CODE_FOR_altivec_vavguh, "__builtin_altivec_vavguh", ALTIVEC_BUILTIN_VAVGUH }, { MASK_ALTIVEC, CODE_FOR_altivec_vavgsh, "__builtin_altivec_vavgsh", ALTIVEC_BUILTIN_VAVGSH }, { MASK_ALTIVEC, CODE_FOR_altivec_vavguw, "__builtin_altivec_vavguw", ALTIVEC_BUILTIN_VAVGUW }, { MASK_ALTIVEC, CODE_FOR_altivec_vavgsw, "__builtin_altivec_vavgsw", ALTIVEC_BUILTIN_VAVGSW }, { MASK_ALTIVEC, CODE_FOR_altivec_vcfux, "__builtin_altivec_vcfux", ALTIVEC_BUILTIN_VCFUX }, { MASK_ALTIVEC, CODE_FOR_altivec_vcfsx, "__builtin_altivec_vcfsx", ALTIVEC_BUILTIN_VCFSX }, { MASK_ALTIVEC, CODE_FOR_altivec_vcmpbfp, "__builtin_altivec_vcmpbfp", ALTIVEC_BUILTIN_VCMPBFP }, { MASK_ALTIVEC, CODE_FOR_vector_eqv16qi, "__builtin_altivec_vcmpequb", ALTIVEC_BUILTIN_VCMPEQUB }, { MASK_ALTIVEC, CODE_FOR_vector_eqv8hi, "__builtin_altivec_vcmpequh", ALTIVEC_BUILTIN_VCMPEQUH }, { MASK_ALTIVEC, CODE_FOR_vector_eqv4si, "__builtin_altivec_vcmpequw", ALTIVEC_BUILTIN_VCMPEQUW }, { MASK_ALTIVEC, CODE_FOR_vector_eqv4sf, "__builtin_altivec_vcmpeqfp", ALTIVEC_BUILTIN_VCMPEQFP }, { MASK_ALTIVEC, CODE_FOR_vector_gev4sf, "__builtin_altivec_vcmpgefp", ALTIVEC_BUILTIN_VCMPGEFP }, { MASK_ALTIVEC, CODE_FOR_vector_gtuv16qi, "__builtin_altivec_vcmpgtub", ALTIVEC_BUILTIN_VCMPGTUB }, { MASK_ALTIVEC, CODE_FOR_vector_gtv16qi, "__builtin_altivec_vcmpgtsb", ALTIVEC_BUILTIN_VCMPGTSB }, { MASK_ALTIVEC, CODE_FOR_vector_gtuv8hi, "__builtin_altivec_vcmpgtuh", ALTIVEC_BUILTIN_VCMPGTUH }, { MASK_ALTIVEC, CODE_FOR_vector_gtv8hi, "__builtin_altivec_vcmpgtsh", ALTIVEC_BUILTIN_VCMPGTSH }, { MASK_ALTIVEC, CODE_FOR_vector_gtuv4si, "__builtin_altivec_vcmpgtuw", ALTIVEC_BUILTIN_VCMPGTUW }, { MASK_ALTIVEC, CODE_FOR_vector_gtv4si, "__builtin_altivec_vcmpgtsw", ALTIVEC_BUILTIN_VCMPGTSW }, { MASK_ALTIVEC, CODE_FOR_vector_gtv4sf, "__builtin_altivec_vcmpgtfp", ALTIVEC_BUILTIN_VCMPGTFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vctsxs, "__builtin_altivec_vctsxs", ALTIVEC_BUILTIN_VCTSXS }, { MASK_ALTIVEC, CODE_FOR_altivec_vctuxs, "__builtin_altivec_vctuxs", ALTIVEC_BUILTIN_VCTUXS }, { MASK_ALTIVEC, CODE_FOR_umaxv16qi3, "__builtin_altivec_vmaxub", ALTIVEC_BUILTIN_VMAXUB }, { MASK_ALTIVEC, CODE_FOR_smaxv16qi3, "__builtin_altivec_vmaxsb", ALTIVEC_BUILTIN_VMAXSB }, { MASK_ALTIVEC, CODE_FOR_umaxv8hi3, "__builtin_altivec_vmaxuh", ALTIVEC_BUILTIN_VMAXUH }, { MASK_ALTIVEC, CODE_FOR_smaxv8hi3, "__builtin_altivec_vmaxsh", ALTIVEC_BUILTIN_VMAXSH }, { MASK_ALTIVEC, CODE_FOR_umaxv4si3, "__builtin_altivec_vmaxuw", ALTIVEC_BUILTIN_VMAXUW }, { MASK_ALTIVEC, CODE_FOR_smaxv4si3, "__builtin_altivec_vmaxsw", ALTIVEC_BUILTIN_VMAXSW }, { MASK_ALTIVEC, CODE_FOR_smaxv4sf3, "__builtin_altivec_vmaxfp", ALTIVEC_BUILTIN_VMAXFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vmrghb, "__builtin_altivec_vmrghb", ALTIVEC_BUILTIN_VMRGHB }, { MASK_ALTIVEC, CODE_FOR_altivec_vmrghh, "__builtin_altivec_vmrghh", ALTIVEC_BUILTIN_VMRGHH }, { MASK_ALTIVEC, CODE_FOR_altivec_vmrghw, "__builtin_altivec_vmrghw", ALTIVEC_BUILTIN_VMRGHW }, { MASK_ALTIVEC, CODE_FOR_altivec_vmrglb, "__builtin_altivec_vmrglb", ALTIVEC_BUILTIN_VMRGLB }, { MASK_ALTIVEC, CODE_FOR_altivec_vmrglh, "__builtin_altivec_vmrglh", ALTIVEC_BUILTIN_VMRGLH }, { MASK_ALTIVEC, CODE_FOR_altivec_vmrglw, "__builtin_altivec_vmrglw", ALTIVEC_BUILTIN_VMRGLW }, { MASK_ALTIVEC, CODE_FOR_uminv16qi3, "__builtin_altivec_vminub", ALTIVEC_BUILTIN_VMINUB }, { MASK_ALTIVEC, CODE_FOR_sminv16qi3, "__builtin_altivec_vminsb", ALTIVEC_BUILTIN_VMINSB }, { MASK_ALTIVEC, CODE_FOR_uminv8hi3, "__builtin_altivec_vminuh", ALTIVEC_BUILTIN_VMINUH }, { MASK_ALTIVEC, CODE_FOR_sminv8hi3, "__builtin_altivec_vminsh", ALTIVEC_BUILTIN_VMINSH }, { MASK_ALTIVEC, CODE_FOR_uminv4si3, "__builtin_altivec_vminuw", ALTIVEC_BUILTIN_VMINUW }, { MASK_ALTIVEC, CODE_FOR_sminv4si3, "__builtin_altivec_vminsw", ALTIVEC_BUILTIN_VMINSW }, { MASK_ALTIVEC, CODE_FOR_sminv4sf3, "__builtin_altivec_vminfp", ALTIVEC_BUILTIN_VMINFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vmuleub, "__builtin_altivec_vmuleub", ALTIVEC_BUILTIN_VMULEUB }, { MASK_ALTIVEC, CODE_FOR_altivec_vmuleub, "__builtin_altivec_vmuleub_uns", ALTIVEC_BUILTIN_VMULEUB_UNS }, { MASK_ALTIVEC, CODE_FOR_altivec_vmulesb, "__builtin_altivec_vmulesb", ALTIVEC_BUILTIN_VMULESB }, { MASK_ALTIVEC, CODE_FOR_altivec_vmuleuh, "__builtin_altivec_vmuleuh", ALTIVEC_BUILTIN_VMULEUH }, { MASK_ALTIVEC, CODE_FOR_altivec_vmuleuh, "__builtin_altivec_vmuleuh_uns", ALTIVEC_BUILTIN_VMULEUH_UNS }, { MASK_ALTIVEC, CODE_FOR_altivec_vmulesh, "__builtin_altivec_vmulesh", ALTIVEC_BUILTIN_VMULESH }, { MASK_ALTIVEC, CODE_FOR_altivec_vmuloub, "__builtin_altivec_vmuloub", ALTIVEC_BUILTIN_VMULOUB }, { MASK_ALTIVEC, CODE_FOR_altivec_vmuloub, "__builtin_altivec_vmuloub_uns", ALTIVEC_BUILTIN_VMULOUB_UNS }, { MASK_ALTIVEC, CODE_FOR_altivec_vmulosb, "__builtin_altivec_vmulosb", ALTIVEC_BUILTIN_VMULOSB }, { MASK_ALTIVEC, CODE_FOR_altivec_vmulouh, "__builtin_altivec_vmulouh", ALTIVEC_BUILTIN_VMULOUH }, { MASK_ALTIVEC, CODE_FOR_altivec_vmulouh, "__builtin_altivec_vmulouh_uns", ALTIVEC_BUILTIN_VMULOUH_UNS }, { MASK_ALTIVEC, CODE_FOR_altivec_vmulosh, "__builtin_altivec_vmulosh", ALTIVEC_BUILTIN_VMULOSH }, { MASK_ALTIVEC, CODE_FOR_norv4si3, "__builtin_altivec_vnor", ALTIVEC_BUILTIN_VNOR }, { MASK_ALTIVEC, CODE_FOR_iorv4si3, "__builtin_altivec_vor", ALTIVEC_BUILTIN_VOR }, { MASK_ALTIVEC, CODE_FOR_altivec_vpkuhum, "__builtin_altivec_vpkuhum", ALTIVEC_BUILTIN_VPKUHUM }, { MASK_ALTIVEC, CODE_FOR_altivec_vpkuwum, "__builtin_altivec_vpkuwum", ALTIVEC_BUILTIN_VPKUWUM }, { MASK_ALTIVEC, CODE_FOR_altivec_vpkpx, "__builtin_altivec_vpkpx", ALTIVEC_BUILTIN_VPKPX }, { MASK_ALTIVEC, CODE_FOR_altivec_vpkshss, "__builtin_altivec_vpkshss", ALTIVEC_BUILTIN_VPKSHSS }, { MASK_ALTIVEC, CODE_FOR_altivec_vpkswss, "__builtin_altivec_vpkswss", ALTIVEC_BUILTIN_VPKSWSS }, { MASK_ALTIVEC, CODE_FOR_altivec_vpkuhus, "__builtin_altivec_vpkuhus", ALTIVEC_BUILTIN_VPKUHUS }, { MASK_ALTIVEC, CODE_FOR_altivec_vpkshus, "__builtin_altivec_vpkshus", ALTIVEC_BUILTIN_VPKSHUS }, { MASK_ALTIVEC, CODE_FOR_altivec_vpkuwus, "__builtin_altivec_vpkuwus", ALTIVEC_BUILTIN_VPKUWUS }, { MASK_ALTIVEC, CODE_FOR_altivec_vpkswus, "__builtin_altivec_vpkswus", ALTIVEC_BUILTIN_VPKSWUS }, { MASK_ALTIVEC, CODE_FOR_vrotlv16qi3, "__builtin_altivec_vrlb", ALTIVEC_BUILTIN_VRLB }, { MASK_ALTIVEC, CODE_FOR_vrotlv8hi3, "__builtin_altivec_vrlh", ALTIVEC_BUILTIN_VRLH }, { MASK_ALTIVEC, CODE_FOR_vrotlv4si3, "__builtin_altivec_vrlw", ALTIVEC_BUILTIN_VRLW }, { MASK_ALTIVEC, CODE_FOR_vashlv16qi3, "__builtin_altivec_vslb", ALTIVEC_BUILTIN_VSLB }, { MASK_ALTIVEC, CODE_FOR_vashlv8hi3, "__builtin_altivec_vslh", ALTIVEC_BUILTIN_VSLH }, { MASK_ALTIVEC, CODE_FOR_vashlv4si3, "__builtin_altivec_vslw", ALTIVEC_BUILTIN_VSLW }, { MASK_ALTIVEC, CODE_FOR_altivec_vsl, "__builtin_altivec_vsl", ALTIVEC_BUILTIN_VSL }, { MASK_ALTIVEC, CODE_FOR_altivec_vslo, "__builtin_altivec_vslo", ALTIVEC_BUILTIN_VSLO }, { MASK_ALTIVEC, CODE_FOR_altivec_vspltb, "__builtin_altivec_vspltb", ALTIVEC_BUILTIN_VSPLTB }, { MASK_ALTIVEC, CODE_FOR_altivec_vsplth, "__builtin_altivec_vsplth", ALTIVEC_BUILTIN_VSPLTH }, { MASK_ALTIVEC, CODE_FOR_altivec_vspltw, "__builtin_altivec_vspltw", ALTIVEC_BUILTIN_VSPLTW }, { MASK_ALTIVEC, CODE_FOR_vlshrv16qi3, "__builtin_altivec_vsrb", ALTIVEC_BUILTIN_VSRB }, { MASK_ALTIVEC, CODE_FOR_vlshrv8hi3, "__builtin_altivec_vsrh", ALTIVEC_BUILTIN_VSRH }, { MASK_ALTIVEC, CODE_FOR_vlshrv4si3, "__builtin_altivec_vsrw", ALTIVEC_BUILTIN_VSRW }, { MASK_ALTIVEC, CODE_FOR_vashrv16qi3, "__builtin_altivec_vsrab", ALTIVEC_BUILTIN_VSRAB }, { MASK_ALTIVEC, CODE_FOR_vashrv8hi3, "__builtin_altivec_vsrah", ALTIVEC_BUILTIN_VSRAH }, { MASK_ALTIVEC, CODE_FOR_vashrv4si3, "__builtin_altivec_vsraw", ALTIVEC_BUILTIN_VSRAW }, { MASK_ALTIVEC, CODE_FOR_altivec_vsr, "__builtin_altivec_vsr", ALTIVEC_BUILTIN_VSR }, { MASK_ALTIVEC, CODE_FOR_altivec_vsro, "__builtin_altivec_vsro", ALTIVEC_BUILTIN_VSRO }, { MASK_ALTIVEC, CODE_FOR_subv16qi3, "__builtin_altivec_vsububm", ALTIVEC_BUILTIN_VSUBUBM }, { MASK_ALTIVEC, CODE_FOR_subv8hi3, "__builtin_altivec_vsubuhm", ALTIVEC_BUILTIN_VSUBUHM }, { MASK_ALTIVEC, CODE_FOR_subv4si3, "__builtin_altivec_vsubuwm", ALTIVEC_BUILTIN_VSUBUWM }, { MASK_ALTIVEC, CODE_FOR_subv4sf3, "__builtin_altivec_vsubfp", ALTIVEC_BUILTIN_VSUBFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vsubcuw, "__builtin_altivec_vsubcuw", ALTIVEC_BUILTIN_VSUBCUW }, { MASK_ALTIVEC, CODE_FOR_altivec_vsububs, "__builtin_altivec_vsububs", ALTIVEC_BUILTIN_VSUBUBS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsubsbs, "__builtin_altivec_vsubsbs", ALTIVEC_BUILTIN_VSUBSBS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsubuhs, "__builtin_altivec_vsubuhs", ALTIVEC_BUILTIN_VSUBUHS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsubshs, "__builtin_altivec_vsubshs", ALTIVEC_BUILTIN_VSUBSHS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsubuws, "__builtin_altivec_vsubuws", ALTIVEC_BUILTIN_VSUBUWS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsubsws, "__builtin_altivec_vsubsws", ALTIVEC_BUILTIN_VSUBSWS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsum4ubs, "__builtin_altivec_vsum4ubs", ALTIVEC_BUILTIN_VSUM4UBS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsum4sbs, "__builtin_altivec_vsum4sbs", ALTIVEC_BUILTIN_VSUM4SBS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsum4shs, "__builtin_altivec_vsum4shs", ALTIVEC_BUILTIN_VSUM4SHS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsum2sws, "__builtin_altivec_vsum2sws", ALTIVEC_BUILTIN_VSUM2SWS }, { MASK_ALTIVEC, CODE_FOR_altivec_vsumsws, "__builtin_altivec_vsumsws", ALTIVEC_BUILTIN_VSUMSWS }, { MASK_ALTIVEC, CODE_FOR_xorv4si3, "__builtin_altivec_vxor", ALTIVEC_BUILTIN_VXOR }, { MASK_ALTIVEC, CODE_FOR_vector_copysignv4sf3, "__builtin_altivec_copysignfp", ALTIVEC_BUILTIN_COPYSIGN_V4SF }, { MASK_VSX, CODE_FOR_addv2df3, "__builtin_vsx_xvadddp", VSX_BUILTIN_XVADDDP }, { MASK_VSX, CODE_FOR_subv2df3, "__builtin_vsx_xvsubdp", VSX_BUILTIN_XVSUBDP }, { MASK_VSX, CODE_FOR_mulv2df3, "__builtin_vsx_xvmuldp", VSX_BUILTIN_XVMULDP }, { MASK_VSX, CODE_FOR_divv2df3, "__builtin_vsx_xvdivdp", VSX_BUILTIN_XVDIVDP }, { MASK_VSX, CODE_FOR_sminv2df3, "__builtin_vsx_xvmindp", VSX_BUILTIN_XVMINDP }, { MASK_VSX, CODE_FOR_smaxv2df3, "__builtin_vsx_xvmaxdp", VSX_BUILTIN_XVMAXDP }, { MASK_VSX, CODE_FOR_vsx_tdivv2df3_fe, "__builtin_vsx_xvtdivdp_fe", VSX_BUILTIN_XVTDIVDP_FE }, { MASK_VSX, CODE_FOR_vsx_tdivv2df3_fg, "__builtin_vsx_xvtdivdp_fg", VSX_BUILTIN_XVTDIVDP_FG }, { MASK_VSX, CODE_FOR_vector_eqv2df, "__builtin_vsx_xvcmpeqdp", VSX_BUILTIN_XVCMPEQDP }, { MASK_VSX, CODE_FOR_vector_gtv2df, "__builtin_vsx_xvcmpgtdp", VSX_BUILTIN_XVCMPGTDP }, { MASK_VSX, CODE_FOR_vector_gev2df, "__builtin_vsx_xvcmpgedp", VSX_BUILTIN_XVCMPGEDP }, { MASK_VSX, CODE_FOR_addv4sf3, "__builtin_vsx_xvaddsp", VSX_BUILTIN_XVADDSP }, { MASK_VSX, CODE_FOR_subv4sf3, "__builtin_vsx_xvsubsp", VSX_BUILTIN_XVSUBSP }, { MASK_VSX, CODE_FOR_mulv4sf3, "__builtin_vsx_xvmulsp", VSX_BUILTIN_XVMULSP }, { MASK_VSX, CODE_FOR_divv4sf3, "__builtin_vsx_xvdivsp", VSX_BUILTIN_XVDIVSP }, { MASK_VSX, CODE_FOR_sminv4sf3, "__builtin_vsx_xvminsp", VSX_BUILTIN_XVMINSP }, { MASK_VSX, CODE_FOR_smaxv4sf3, "__builtin_vsx_xvmaxsp", VSX_BUILTIN_XVMAXSP }, { MASK_VSX, CODE_FOR_vsx_tdivv4sf3_fe, "__builtin_vsx_xvtdivsp_fe", VSX_BUILTIN_XVTDIVSP_FE }, { MASK_VSX, CODE_FOR_vsx_tdivv4sf3_fg, "__builtin_vsx_xvtdivsp_fg", VSX_BUILTIN_XVTDIVSP_FG }, { MASK_VSX, CODE_FOR_vector_eqv4sf, "__builtin_vsx_xvcmpeqsp", VSX_BUILTIN_XVCMPEQSP }, { MASK_VSX, CODE_FOR_vector_gtv4sf, "__builtin_vsx_xvcmpgtsp", VSX_BUILTIN_XVCMPGTSP }, { MASK_VSX, CODE_FOR_vector_gev4sf, "__builtin_vsx_xvcmpgesp", VSX_BUILTIN_XVCMPGESP }, { MASK_VSX, CODE_FOR_smindf3, "__builtin_vsx_xsmindp", VSX_BUILTIN_XSMINDP }, { MASK_VSX, CODE_FOR_smaxdf3, "__builtin_vsx_xsmaxdp", VSX_BUILTIN_XSMAXDP }, { MASK_VSX, CODE_FOR_vsx_tdivdf3_fe, "__builtin_vsx_xstdivdp_fe", VSX_BUILTIN_XSTDIVDP_FE }, { MASK_VSX, CODE_FOR_vsx_tdivdf3_fg, "__builtin_vsx_xstdivdp_fg", VSX_BUILTIN_XSTDIVDP_FG }, { MASK_VSX, CODE_FOR_vector_copysignv2df3, "__builtin_vsx_cpsgndp", VSX_BUILTIN_CPSGNDP }, { MASK_VSX, CODE_FOR_vector_copysignv4sf3, "__builtin_vsx_cpsgnsp", VSX_BUILTIN_CPSGNSP }, { MASK_VSX, CODE_FOR_vsx_concat_v2df, "__builtin_vsx_concat_2df", VSX_BUILTIN_CONCAT_2DF }, { MASK_VSX, CODE_FOR_vsx_concat_v2di, "__builtin_vsx_concat_2di", VSX_BUILTIN_CONCAT_2DI }, { MASK_VSX, CODE_FOR_vsx_splat_v2df, "__builtin_vsx_splat_2df", VSX_BUILTIN_SPLAT_2DF }, { MASK_VSX, CODE_FOR_vsx_splat_v2di, "__builtin_vsx_splat_2di", VSX_BUILTIN_SPLAT_2DI }, { MASK_VSX, CODE_FOR_vsx_xxmrghw_v4sf, "__builtin_vsx_xxmrghw", VSX_BUILTIN_XXMRGHW_4SF }, { MASK_VSX, CODE_FOR_vsx_xxmrghw_v4si, "__builtin_vsx_xxmrghw_4si", VSX_BUILTIN_XXMRGHW_4SI }, { MASK_VSX, CODE_FOR_vsx_xxmrglw_v4sf, "__builtin_vsx_xxmrglw", VSX_BUILTIN_XXMRGLW_4SF }, { MASK_VSX, CODE_FOR_vsx_xxmrglw_v4si, "__builtin_vsx_xxmrglw_4si", VSX_BUILTIN_XXMRGLW_4SI }, { MASK_VSX, CODE_FOR_vec_interleave_lowv2df, "__builtin_vsx_mergel_2df", VSX_BUILTIN_VEC_MERGEL_V2DF }, { MASK_VSX, CODE_FOR_vec_interleave_lowv2di, "__builtin_vsx_mergel_2di", VSX_BUILTIN_VEC_MERGEL_V2DI }, { MASK_VSX, CODE_FOR_vec_interleave_highv2df, "__builtin_vsx_mergeh_2df", VSX_BUILTIN_VEC_MERGEH_V2DF }, { MASK_VSX, CODE_FOR_vec_interleave_highv2di, "__builtin_vsx_mergeh_2di", VSX_BUILTIN_VEC_MERGEH_V2DI }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_add", ALTIVEC_BUILTIN_VEC_ADD }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_vaddfp", ALTIVEC_BUILTIN_VEC_VADDFP }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vadduwm", ALTIVEC_BUILTIN_VEC_VADDUWM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vadduhm", ALTIVEC_BUILTIN_VEC_VADDUHM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vaddubm", ALTIVEC_BUILTIN_VEC_VADDUBM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_addc", ALTIVEC_BUILTIN_VEC_ADDC }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_adds", ALTIVEC_BUILTIN_VEC_ADDS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vaddsws", ALTIVEC_BUILTIN_VEC_VADDSWS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vadduws", ALTIVEC_BUILTIN_VEC_VADDUWS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vaddshs", ALTIVEC_BUILTIN_VEC_VADDSHS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vadduhs", ALTIVEC_BUILTIN_VEC_VADDUHS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vaddsbs", ALTIVEC_BUILTIN_VEC_VADDSBS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vaddubs", ALTIVEC_BUILTIN_VEC_VADDUBS }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_and", ALTIVEC_BUILTIN_VEC_AND }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_andc", ALTIVEC_BUILTIN_VEC_ANDC }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_avg", ALTIVEC_BUILTIN_VEC_AVG }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vavgsw", ALTIVEC_BUILTIN_VEC_VAVGSW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vavguw", ALTIVEC_BUILTIN_VEC_VAVGUW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vavgsh", ALTIVEC_BUILTIN_VEC_VAVGSH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vavguh", ALTIVEC_BUILTIN_VEC_VAVGUH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vavgsb", ALTIVEC_BUILTIN_VEC_VAVGSB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vavgub", ALTIVEC_BUILTIN_VEC_VAVGUB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_cmpb", ALTIVEC_BUILTIN_VEC_CMPB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_cmpeq", ALTIVEC_BUILTIN_VEC_CMPEQ }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpeqfp", ALTIVEC_BUILTIN_VEC_VCMPEQFP }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpequw", ALTIVEC_BUILTIN_VEC_VCMPEQUW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpequh", ALTIVEC_BUILTIN_VEC_VCMPEQUH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpequb", ALTIVEC_BUILTIN_VEC_VCMPEQUB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_cmpge", ALTIVEC_BUILTIN_VEC_CMPGE }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_cmpgt", ALTIVEC_BUILTIN_VEC_CMPGT }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpgtfp", ALTIVEC_BUILTIN_VEC_VCMPGTFP }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpgtsw", ALTIVEC_BUILTIN_VEC_VCMPGTSW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpgtuw", ALTIVEC_BUILTIN_VEC_VCMPGTUW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpgtsh", ALTIVEC_BUILTIN_VEC_VCMPGTSH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpgtuh", ALTIVEC_BUILTIN_VEC_VCMPGTUH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpgtsb", ALTIVEC_BUILTIN_VEC_VCMPGTSB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vcmpgtub", ALTIVEC_BUILTIN_VEC_VCMPGTUB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_cmple", ALTIVEC_BUILTIN_VEC_CMPLE }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_cmplt", ALTIVEC_BUILTIN_VEC_CMPLT }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_copysign", ALTIVEC_BUILTIN_VEC_COPYSIGN }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_max", ALTIVEC_BUILTIN_VEC_MAX }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_vmaxfp", ALTIVEC_BUILTIN_VEC_VMAXFP }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmaxsw", ALTIVEC_BUILTIN_VEC_VMAXSW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmaxuw", ALTIVEC_BUILTIN_VEC_VMAXUW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmaxsh", ALTIVEC_BUILTIN_VEC_VMAXSH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmaxuh", ALTIVEC_BUILTIN_VEC_VMAXUH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmaxsb", ALTIVEC_BUILTIN_VEC_VMAXSB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmaxub", ALTIVEC_BUILTIN_VEC_VMAXUB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_mergeh", ALTIVEC_BUILTIN_VEC_MERGEH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmrghw", ALTIVEC_BUILTIN_VEC_VMRGHW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmrghh", ALTIVEC_BUILTIN_VEC_VMRGHH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmrghb", ALTIVEC_BUILTIN_VEC_VMRGHB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_mergel", ALTIVEC_BUILTIN_VEC_MERGEL }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmrglw", ALTIVEC_BUILTIN_VEC_VMRGLW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmrglh", ALTIVEC_BUILTIN_VEC_VMRGLH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmrglb", ALTIVEC_BUILTIN_VEC_VMRGLB }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_min", ALTIVEC_BUILTIN_VEC_MIN }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_vminfp", ALTIVEC_BUILTIN_VEC_VMINFP }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vminsw", ALTIVEC_BUILTIN_VEC_VMINSW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vminuw", ALTIVEC_BUILTIN_VEC_VMINUW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vminsh", ALTIVEC_BUILTIN_VEC_VMINSH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vminuh", ALTIVEC_BUILTIN_VEC_VMINUH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vminsb", ALTIVEC_BUILTIN_VEC_VMINSB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vminub", ALTIVEC_BUILTIN_VEC_VMINUB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_mule", ALTIVEC_BUILTIN_VEC_MULE }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmuleub", ALTIVEC_BUILTIN_VEC_VMULEUB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmulesb", ALTIVEC_BUILTIN_VEC_VMULESB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmuleuh", ALTIVEC_BUILTIN_VEC_VMULEUH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmulesh", ALTIVEC_BUILTIN_VEC_VMULESH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_mulo", ALTIVEC_BUILTIN_VEC_MULO }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmulosh", ALTIVEC_BUILTIN_VEC_VMULOSH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmulouh", ALTIVEC_BUILTIN_VEC_VMULOUH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmulosb", ALTIVEC_BUILTIN_VEC_VMULOSB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vmuloub", ALTIVEC_BUILTIN_VEC_VMULOUB }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_nor", ALTIVEC_BUILTIN_VEC_NOR }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_or", ALTIVEC_BUILTIN_VEC_OR }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_pack", ALTIVEC_BUILTIN_VEC_PACK }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vpkuwum", ALTIVEC_BUILTIN_VEC_VPKUWUM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vpkuhum", ALTIVEC_BUILTIN_VEC_VPKUHUM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_packpx", ALTIVEC_BUILTIN_VEC_PACKPX }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_packs", ALTIVEC_BUILTIN_VEC_PACKS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vpkswss", ALTIVEC_BUILTIN_VEC_VPKSWSS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vpkuwus", ALTIVEC_BUILTIN_VEC_VPKUWUS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vpkshss", ALTIVEC_BUILTIN_VEC_VPKSHSS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vpkuhus", ALTIVEC_BUILTIN_VEC_VPKUHUS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_packsu", ALTIVEC_BUILTIN_VEC_PACKSU }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vpkswus", ALTIVEC_BUILTIN_VEC_VPKSWUS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vpkshus", ALTIVEC_BUILTIN_VEC_VPKSHUS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_rl", ALTIVEC_BUILTIN_VEC_RL }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vrlw", ALTIVEC_BUILTIN_VEC_VRLW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vrlh", ALTIVEC_BUILTIN_VEC_VRLH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vrlb", ALTIVEC_BUILTIN_VEC_VRLB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_sl", ALTIVEC_BUILTIN_VEC_SL }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vslw", ALTIVEC_BUILTIN_VEC_VSLW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vslh", ALTIVEC_BUILTIN_VEC_VSLH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vslb", ALTIVEC_BUILTIN_VEC_VSLB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_sll", ALTIVEC_BUILTIN_VEC_SLL }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_slo", ALTIVEC_BUILTIN_VEC_SLO }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_sr", ALTIVEC_BUILTIN_VEC_SR }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsrw", ALTIVEC_BUILTIN_VEC_VSRW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsrh", ALTIVEC_BUILTIN_VEC_VSRH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsrb", ALTIVEC_BUILTIN_VEC_VSRB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_sra", ALTIVEC_BUILTIN_VEC_SRA }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsraw", ALTIVEC_BUILTIN_VEC_VSRAW }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsrah", ALTIVEC_BUILTIN_VEC_VSRAH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsrab", ALTIVEC_BUILTIN_VEC_VSRAB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_srl", ALTIVEC_BUILTIN_VEC_SRL }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_sro", ALTIVEC_BUILTIN_VEC_SRO }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_sub", ALTIVEC_BUILTIN_VEC_SUB }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_vsubfp", ALTIVEC_BUILTIN_VEC_VSUBFP }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsubuwm", ALTIVEC_BUILTIN_VEC_VSUBUWM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsubuhm", ALTIVEC_BUILTIN_VEC_VSUBUHM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsububm", ALTIVEC_BUILTIN_VEC_VSUBUBM }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_subc", ALTIVEC_BUILTIN_VEC_SUBC }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_subs", ALTIVEC_BUILTIN_VEC_SUBS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsubsws", ALTIVEC_BUILTIN_VEC_VSUBSWS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsubuws", ALTIVEC_BUILTIN_VEC_VSUBUWS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsubshs", ALTIVEC_BUILTIN_VEC_VSUBSHS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsubuhs", ALTIVEC_BUILTIN_VEC_VSUBUHS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsubsbs", ALTIVEC_BUILTIN_VEC_VSUBSBS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsububs", ALTIVEC_BUILTIN_VEC_VSUBUBS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_sum4s", ALTIVEC_BUILTIN_VEC_SUM4S }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsum4shs", ALTIVEC_BUILTIN_VEC_VSUM4SHS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsum4sbs", ALTIVEC_BUILTIN_VEC_VSUM4SBS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vsum4ubs", ALTIVEC_BUILTIN_VEC_VSUM4UBS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_sum2s", ALTIVEC_BUILTIN_VEC_SUM2S }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_sums", ALTIVEC_BUILTIN_VEC_SUMS }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_xor", ALTIVEC_BUILTIN_VEC_XOR }, { MASK_VSX, CODE_FOR_nothing, "__builtin_vec_mul", VSX_BUILTIN_VEC_MUL }, { MASK_VSX, CODE_FOR_nothing, "__builtin_vec_div", VSX_BUILTIN_VEC_DIV }, { 0, CODE_FOR_paired_divv2sf3, "__builtin_paired_divv2sf3", PAIRED_BUILTIN_DIVV2SF3 }, { 0, CODE_FOR_paired_addv2sf3, "__builtin_paired_addv2sf3", PAIRED_BUILTIN_ADDV2SF3 }, { 0, CODE_FOR_paired_subv2sf3, "__builtin_paired_subv2sf3", PAIRED_BUILTIN_SUBV2SF3 }, { 0, CODE_FOR_paired_mulv2sf3, "__builtin_paired_mulv2sf3", PAIRED_BUILTIN_MULV2SF3 }, { 0, CODE_FOR_paired_muls0, "__builtin_paired_muls0", PAIRED_BUILTIN_MULS0 }, { 0, CODE_FOR_paired_muls1, "__builtin_paired_muls1", PAIRED_BUILTIN_MULS1 }, { 0, CODE_FOR_paired_merge00, "__builtin_paired_merge00", PAIRED_BUILTIN_MERGE00 }, { 0, CODE_FOR_paired_merge01, "__builtin_paired_merge01", PAIRED_BUILTIN_MERGE01 }, { 0, CODE_FOR_paired_merge10, "__builtin_paired_merge10", PAIRED_BUILTIN_MERGE10 }, { 0, CODE_FOR_paired_merge11, "__builtin_paired_merge11", PAIRED_BUILTIN_MERGE11 }, /* Place holder, leave as first spe builtin. */ { 0, CODE_FOR_addv2si3, "__builtin_spe_evaddw", SPE_BUILTIN_EVADDW }, { 0, CODE_FOR_andv2si3, "__builtin_spe_evand", SPE_BUILTIN_EVAND }, { 0, CODE_FOR_spe_evandc, "__builtin_spe_evandc", SPE_BUILTIN_EVANDC }, { 0, CODE_FOR_divv2si3, "__builtin_spe_evdivws", SPE_BUILTIN_EVDIVWS }, { 0, CODE_FOR_spe_evdivwu, "__builtin_spe_evdivwu", SPE_BUILTIN_EVDIVWU }, { 0, CODE_FOR_spe_eveqv, "__builtin_spe_eveqv", SPE_BUILTIN_EVEQV }, { 0, CODE_FOR_spe_evfsadd, "__builtin_spe_evfsadd", SPE_BUILTIN_EVFSADD }, { 0, CODE_FOR_spe_evfsdiv, "__builtin_spe_evfsdiv", SPE_BUILTIN_EVFSDIV }, { 0, CODE_FOR_spe_evfsmul, "__builtin_spe_evfsmul", SPE_BUILTIN_EVFSMUL }, { 0, CODE_FOR_spe_evfssub, "__builtin_spe_evfssub", SPE_BUILTIN_EVFSSUB }, { 0, CODE_FOR_spe_evmergehi, "__builtin_spe_evmergehi", SPE_BUILTIN_EVMERGEHI }, { 0, CODE_FOR_spe_evmergehilo, "__builtin_spe_evmergehilo", SPE_BUILTIN_EVMERGEHILO }, { 0, CODE_FOR_spe_evmergelo, "__builtin_spe_evmergelo", SPE_BUILTIN_EVMERGELO }, { 0, CODE_FOR_spe_evmergelohi, "__builtin_spe_evmergelohi", SPE_BUILTIN_EVMERGELOHI }, { 0, CODE_FOR_spe_evmhegsmfaa, "__builtin_spe_evmhegsmfaa", SPE_BUILTIN_EVMHEGSMFAA }, { 0, CODE_FOR_spe_evmhegsmfan, "__builtin_spe_evmhegsmfan", SPE_BUILTIN_EVMHEGSMFAN }, { 0, CODE_FOR_spe_evmhegsmiaa, "__builtin_spe_evmhegsmiaa", SPE_BUILTIN_EVMHEGSMIAA }, { 0, CODE_FOR_spe_evmhegsmian, "__builtin_spe_evmhegsmian", SPE_BUILTIN_EVMHEGSMIAN }, { 0, CODE_FOR_spe_evmhegumiaa, "__builtin_spe_evmhegumiaa", SPE_BUILTIN_EVMHEGUMIAA }, { 0, CODE_FOR_spe_evmhegumian, "__builtin_spe_evmhegumian", SPE_BUILTIN_EVMHEGUMIAN }, { 0, CODE_FOR_spe_evmhesmf, "__builtin_spe_evmhesmf", SPE_BUILTIN_EVMHESMF }, { 0, CODE_FOR_spe_evmhesmfa, "__builtin_spe_evmhesmfa", SPE_BUILTIN_EVMHESMFA }, { 0, CODE_FOR_spe_evmhesmfaaw, "__builtin_spe_evmhesmfaaw", SPE_BUILTIN_EVMHESMFAAW }, { 0, CODE_FOR_spe_evmhesmfanw, "__builtin_spe_evmhesmfanw", SPE_BUILTIN_EVMHESMFANW }, { 0, CODE_FOR_spe_evmhesmi, "__builtin_spe_evmhesmi", SPE_BUILTIN_EVMHESMI }, { 0, CODE_FOR_spe_evmhesmia, "__builtin_spe_evmhesmia", SPE_BUILTIN_EVMHESMIA }, { 0, CODE_FOR_spe_evmhesmiaaw, "__builtin_spe_evmhesmiaaw", SPE_BUILTIN_EVMHESMIAAW }, { 0, CODE_FOR_spe_evmhesmianw, "__builtin_spe_evmhesmianw", SPE_BUILTIN_EVMHESMIANW }, { 0, CODE_FOR_spe_evmhessf, "__builtin_spe_evmhessf", SPE_BUILTIN_EVMHESSF }, { 0, CODE_FOR_spe_evmhessfa, "__builtin_spe_evmhessfa", SPE_BUILTIN_EVMHESSFA }, { 0, CODE_FOR_spe_evmhessfaaw, "__builtin_spe_evmhessfaaw", SPE_BUILTIN_EVMHESSFAAW }, { 0, CODE_FOR_spe_evmhessfanw, "__builtin_spe_evmhessfanw", SPE_BUILTIN_EVMHESSFANW }, { 0, CODE_FOR_spe_evmhessiaaw, "__builtin_spe_evmhessiaaw", SPE_BUILTIN_EVMHESSIAAW }, { 0, CODE_FOR_spe_evmhessianw, "__builtin_spe_evmhessianw", SPE_BUILTIN_EVMHESSIANW }, { 0, CODE_FOR_spe_evmheumi, "__builtin_spe_evmheumi", SPE_BUILTIN_EVMHEUMI }, { 0, CODE_FOR_spe_evmheumia, "__builtin_spe_evmheumia", SPE_BUILTIN_EVMHEUMIA }, { 0, CODE_FOR_spe_evmheumiaaw, "__builtin_spe_evmheumiaaw", SPE_BUILTIN_EVMHEUMIAAW }, { 0, CODE_FOR_spe_evmheumianw, "__builtin_spe_evmheumianw", SPE_BUILTIN_EVMHEUMIANW }, { 0, CODE_FOR_spe_evmheusiaaw, "__builtin_spe_evmheusiaaw", SPE_BUILTIN_EVMHEUSIAAW }, { 0, CODE_FOR_spe_evmheusianw, "__builtin_spe_evmheusianw", SPE_BUILTIN_EVMHEUSIANW }, { 0, CODE_FOR_spe_evmhogsmfaa, "__builtin_spe_evmhogsmfaa", SPE_BUILTIN_EVMHOGSMFAA }, { 0, CODE_FOR_spe_evmhogsmfan, "__builtin_spe_evmhogsmfan", SPE_BUILTIN_EVMHOGSMFAN }, { 0, CODE_FOR_spe_evmhogsmiaa, "__builtin_spe_evmhogsmiaa", SPE_BUILTIN_EVMHOGSMIAA }, { 0, CODE_FOR_spe_evmhogsmian, "__builtin_spe_evmhogsmian", SPE_BUILTIN_EVMHOGSMIAN }, { 0, CODE_FOR_spe_evmhogumiaa, "__builtin_spe_evmhogumiaa", SPE_BUILTIN_EVMHOGUMIAA }, { 0, CODE_FOR_spe_evmhogumian, "__builtin_spe_evmhogumian", SPE_BUILTIN_EVMHOGUMIAN }, { 0, CODE_FOR_spe_evmhosmf, "__builtin_spe_evmhosmf", SPE_BUILTIN_EVMHOSMF }, { 0, CODE_FOR_spe_evmhosmfa, "__builtin_spe_evmhosmfa", SPE_BUILTIN_EVMHOSMFA }, { 0, CODE_FOR_spe_evmhosmfaaw, "__builtin_spe_evmhosmfaaw", SPE_BUILTIN_EVMHOSMFAAW }, { 0, CODE_FOR_spe_evmhosmfanw, "__builtin_spe_evmhosmfanw", SPE_BUILTIN_EVMHOSMFANW }, { 0, CODE_FOR_spe_evmhosmi, "__builtin_spe_evmhosmi", SPE_BUILTIN_EVMHOSMI }, { 0, CODE_FOR_spe_evmhosmia, "__builtin_spe_evmhosmia", SPE_BUILTIN_EVMHOSMIA }, { 0, CODE_FOR_spe_evmhosmiaaw, "__builtin_spe_evmhosmiaaw", SPE_BUILTIN_EVMHOSMIAAW }, { 0, CODE_FOR_spe_evmhosmianw, "__builtin_spe_evmhosmianw", SPE_BUILTIN_EVMHOSMIANW }, { 0, CODE_FOR_spe_evmhossf, "__builtin_spe_evmhossf", SPE_BUILTIN_EVMHOSSF }, { 0, CODE_FOR_spe_evmhossfa, "__builtin_spe_evmhossfa", SPE_BUILTIN_EVMHOSSFA }, { 0, CODE_FOR_spe_evmhossfaaw, "__builtin_spe_evmhossfaaw", SPE_BUILTIN_EVMHOSSFAAW }, { 0, CODE_FOR_spe_evmhossfanw, "__builtin_spe_evmhossfanw", SPE_BUILTIN_EVMHOSSFANW }, { 0, CODE_FOR_spe_evmhossiaaw, "__builtin_spe_evmhossiaaw", SPE_BUILTIN_EVMHOSSIAAW }, { 0, CODE_FOR_spe_evmhossianw, "__builtin_spe_evmhossianw", SPE_BUILTIN_EVMHOSSIANW }, { 0, CODE_FOR_spe_evmhoumi, "__builtin_spe_evmhoumi", SPE_BUILTIN_EVMHOUMI }, { 0, CODE_FOR_spe_evmhoumia, "__builtin_spe_evmhoumia", SPE_BUILTIN_EVMHOUMIA }, { 0, CODE_FOR_spe_evmhoumiaaw, "__builtin_spe_evmhoumiaaw", SPE_BUILTIN_EVMHOUMIAAW }, { 0, CODE_FOR_spe_evmhoumianw, "__builtin_spe_evmhoumianw", SPE_BUILTIN_EVMHOUMIANW }, { 0, CODE_FOR_spe_evmhousiaaw, "__builtin_spe_evmhousiaaw", SPE_BUILTIN_EVMHOUSIAAW }, { 0, CODE_FOR_spe_evmhousianw, "__builtin_spe_evmhousianw", SPE_BUILTIN_EVMHOUSIANW }, { 0, CODE_FOR_spe_evmwhsmf, "__builtin_spe_evmwhsmf", SPE_BUILTIN_EVMWHSMF }, { 0, CODE_FOR_spe_evmwhsmfa, "__builtin_spe_evmwhsmfa", SPE_BUILTIN_EVMWHSMFA }, { 0, CODE_FOR_spe_evmwhsmi, "__builtin_spe_evmwhsmi", SPE_BUILTIN_EVMWHSMI }, { 0, CODE_FOR_spe_evmwhsmia, "__builtin_spe_evmwhsmia", SPE_BUILTIN_EVMWHSMIA }, { 0, CODE_FOR_spe_evmwhssf, "__builtin_spe_evmwhssf", SPE_BUILTIN_EVMWHSSF }, { 0, CODE_FOR_spe_evmwhssfa, "__builtin_spe_evmwhssfa", SPE_BUILTIN_EVMWHSSFA }, { 0, CODE_FOR_spe_evmwhumi, "__builtin_spe_evmwhumi", SPE_BUILTIN_EVMWHUMI }, { 0, CODE_FOR_spe_evmwhumia, "__builtin_spe_evmwhumia", SPE_BUILTIN_EVMWHUMIA }, { 0, CODE_FOR_spe_evmwlsmiaaw, "__builtin_spe_evmwlsmiaaw", SPE_BUILTIN_EVMWLSMIAAW }, { 0, CODE_FOR_spe_evmwlsmianw, "__builtin_spe_evmwlsmianw", SPE_BUILTIN_EVMWLSMIANW }, { 0, CODE_FOR_spe_evmwlssiaaw, "__builtin_spe_evmwlssiaaw", SPE_BUILTIN_EVMWLSSIAAW }, { 0, CODE_FOR_spe_evmwlssianw, "__builtin_spe_evmwlssianw", SPE_BUILTIN_EVMWLSSIANW }, { 0, CODE_FOR_spe_evmwlumi, "__builtin_spe_evmwlumi", SPE_BUILTIN_EVMWLUMI }, { 0, CODE_FOR_spe_evmwlumia, "__builtin_spe_evmwlumia", SPE_BUILTIN_EVMWLUMIA }, { 0, CODE_FOR_spe_evmwlumiaaw, "__builtin_spe_evmwlumiaaw", SPE_BUILTIN_EVMWLUMIAAW }, { 0, CODE_FOR_spe_evmwlumianw, "__builtin_spe_evmwlumianw", SPE_BUILTIN_EVMWLUMIANW }, { 0, CODE_FOR_spe_evmwlusiaaw, "__builtin_spe_evmwlusiaaw", SPE_BUILTIN_EVMWLUSIAAW }, { 0, CODE_FOR_spe_evmwlusianw, "__builtin_spe_evmwlusianw", SPE_BUILTIN_EVMWLUSIANW }, { 0, CODE_FOR_spe_evmwsmf, "__builtin_spe_evmwsmf", SPE_BUILTIN_EVMWSMF }, { 0, CODE_FOR_spe_evmwsmfa, "__builtin_spe_evmwsmfa", SPE_BUILTIN_EVMWSMFA }, { 0, CODE_FOR_spe_evmwsmfaa, "__builtin_spe_evmwsmfaa", SPE_BUILTIN_EVMWSMFAA }, { 0, CODE_FOR_spe_evmwsmfan, "__builtin_spe_evmwsmfan", SPE_BUILTIN_EVMWSMFAN }, { 0, CODE_FOR_spe_evmwsmi, "__builtin_spe_evmwsmi", SPE_BUILTIN_EVMWSMI }, { 0, CODE_FOR_spe_evmwsmia, "__builtin_spe_evmwsmia", SPE_BUILTIN_EVMWSMIA }, { 0, CODE_FOR_spe_evmwsmiaa, "__builtin_spe_evmwsmiaa", SPE_BUILTIN_EVMWSMIAA }, { 0, CODE_FOR_spe_evmwsmian, "__builtin_spe_evmwsmian", SPE_BUILTIN_EVMWSMIAN }, { 0, CODE_FOR_spe_evmwssf, "__builtin_spe_evmwssf", SPE_BUILTIN_EVMWSSF }, { 0, CODE_FOR_spe_evmwssfa, "__builtin_spe_evmwssfa", SPE_BUILTIN_EVMWSSFA }, { 0, CODE_FOR_spe_evmwssfaa, "__builtin_spe_evmwssfaa", SPE_BUILTIN_EVMWSSFAA }, { 0, CODE_FOR_spe_evmwssfan, "__builtin_spe_evmwssfan", SPE_BUILTIN_EVMWSSFAN }, { 0, CODE_FOR_spe_evmwumi, "__builtin_spe_evmwumi", SPE_BUILTIN_EVMWUMI }, { 0, CODE_FOR_spe_evmwumia, "__builtin_spe_evmwumia", SPE_BUILTIN_EVMWUMIA }, { 0, CODE_FOR_spe_evmwumiaa, "__builtin_spe_evmwumiaa", SPE_BUILTIN_EVMWUMIAA }, { 0, CODE_FOR_spe_evmwumian, "__builtin_spe_evmwumian", SPE_BUILTIN_EVMWUMIAN }, { 0, CODE_FOR_spe_evnand, "__builtin_spe_evnand", SPE_BUILTIN_EVNAND }, { 0, CODE_FOR_spe_evnor, "__builtin_spe_evnor", SPE_BUILTIN_EVNOR }, { 0, CODE_FOR_spe_evor, "__builtin_spe_evor", SPE_BUILTIN_EVOR }, { 0, CODE_FOR_spe_evorc, "__builtin_spe_evorc", SPE_BUILTIN_EVORC }, { 0, CODE_FOR_spe_evrlw, "__builtin_spe_evrlw", SPE_BUILTIN_EVRLW }, { 0, CODE_FOR_spe_evslw, "__builtin_spe_evslw", SPE_BUILTIN_EVSLW }, { 0, CODE_FOR_spe_evsrws, "__builtin_spe_evsrws", SPE_BUILTIN_EVSRWS }, { 0, CODE_FOR_spe_evsrwu, "__builtin_spe_evsrwu", SPE_BUILTIN_EVSRWU }, { 0, CODE_FOR_subv2si3, "__builtin_spe_evsubfw", SPE_BUILTIN_EVSUBFW }, /* SPE binary operations expecting a 5-bit unsigned literal. */ { 0, CODE_FOR_spe_evaddiw, "__builtin_spe_evaddiw", SPE_BUILTIN_EVADDIW }, { 0, CODE_FOR_spe_evrlwi, "__builtin_spe_evrlwi", SPE_BUILTIN_EVRLWI }, { 0, CODE_FOR_spe_evslwi, "__builtin_spe_evslwi", SPE_BUILTIN_EVSLWI }, { 0, CODE_FOR_spe_evsrwis, "__builtin_spe_evsrwis", SPE_BUILTIN_EVSRWIS }, { 0, CODE_FOR_spe_evsrwiu, "__builtin_spe_evsrwiu", SPE_BUILTIN_EVSRWIU }, { 0, CODE_FOR_spe_evsubifw, "__builtin_spe_evsubifw", SPE_BUILTIN_EVSUBIFW }, { 0, CODE_FOR_spe_evmwhssfaa, "__builtin_spe_evmwhssfaa", SPE_BUILTIN_EVMWHSSFAA }, { 0, CODE_FOR_spe_evmwhssmaa, "__builtin_spe_evmwhssmaa", SPE_BUILTIN_EVMWHSSMAA }, { 0, CODE_FOR_spe_evmwhsmfaa, "__builtin_spe_evmwhsmfaa", SPE_BUILTIN_EVMWHSMFAA }, { 0, CODE_FOR_spe_evmwhsmiaa, "__builtin_spe_evmwhsmiaa", SPE_BUILTIN_EVMWHSMIAA }, { 0, CODE_FOR_spe_evmwhusiaa, "__builtin_spe_evmwhusiaa", SPE_BUILTIN_EVMWHUSIAA }, { 0, CODE_FOR_spe_evmwhumiaa, "__builtin_spe_evmwhumiaa", SPE_BUILTIN_EVMWHUMIAA }, { 0, CODE_FOR_spe_evmwhssfan, "__builtin_spe_evmwhssfan", SPE_BUILTIN_EVMWHSSFAN }, { 0, CODE_FOR_spe_evmwhssian, "__builtin_spe_evmwhssian", SPE_BUILTIN_EVMWHSSIAN }, { 0, CODE_FOR_spe_evmwhsmfan, "__builtin_spe_evmwhsmfan", SPE_BUILTIN_EVMWHSMFAN }, { 0, CODE_FOR_spe_evmwhsmian, "__builtin_spe_evmwhsmian", SPE_BUILTIN_EVMWHSMIAN }, { 0, CODE_FOR_spe_evmwhusian, "__builtin_spe_evmwhusian", SPE_BUILTIN_EVMWHUSIAN }, { 0, CODE_FOR_spe_evmwhumian, "__builtin_spe_evmwhumian", SPE_BUILTIN_EVMWHUMIAN }, { 0, CODE_FOR_spe_evmwhgssfaa, "__builtin_spe_evmwhgssfaa", SPE_BUILTIN_EVMWHGSSFAA }, { 0, CODE_FOR_spe_evmwhgsmfaa, "__builtin_spe_evmwhgsmfaa", SPE_BUILTIN_EVMWHGSMFAA }, { 0, CODE_FOR_spe_evmwhgsmiaa, "__builtin_spe_evmwhgsmiaa", SPE_BUILTIN_EVMWHGSMIAA }, { 0, CODE_FOR_spe_evmwhgumiaa, "__builtin_spe_evmwhgumiaa", SPE_BUILTIN_EVMWHGUMIAA }, { 0, CODE_FOR_spe_evmwhgssfan, "__builtin_spe_evmwhgssfan", SPE_BUILTIN_EVMWHGSSFAN }, { 0, CODE_FOR_spe_evmwhgsmfan, "__builtin_spe_evmwhgsmfan", SPE_BUILTIN_EVMWHGSMFAN }, { 0, CODE_FOR_spe_evmwhgsmian, "__builtin_spe_evmwhgsmian", SPE_BUILTIN_EVMWHGSMIAN }, { 0, CODE_FOR_spe_evmwhgumian, "__builtin_spe_evmwhgumian", SPE_BUILTIN_EVMWHGUMIAN }, { 0, CODE_FOR_spe_brinc, "__builtin_spe_brinc", SPE_BUILTIN_BRINC }, /* Place-holder. Leave as last binary SPE builtin. */ { 0, CODE_FOR_xorv2si3, "__builtin_spe_evxor", SPE_BUILTIN_EVXOR } }; /* AltiVec predicates. */ struct builtin_description_predicates { const unsigned int mask; const enum insn_code icode; const char *const name; const enum rs6000_builtins code; }; static const struct builtin_description_predicates bdesc_altivec_preds[] = { { MASK_ALTIVEC, CODE_FOR_altivec_vcmpbfp_p, "__builtin_altivec_vcmpbfp_p", ALTIVEC_BUILTIN_VCMPBFP_P }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_vector_eq_v4sf_p, "__builtin_altivec_vcmpeqfp_p", ALTIVEC_BUILTIN_VCMPEQFP_P }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_vector_ge_v4sf_p, "__builtin_altivec_vcmpgefp_p", ALTIVEC_BUILTIN_VCMPGEFP_P }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_vector_gt_v4sf_p, "__builtin_altivec_vcmpgtfp_p", ALTIVEC_BUILTIN_VCMPGTFP_P }, { MASK_ALTIVEC, CODE_FOR_vector_eq_v4si_p, "__builtin_altivec_vcmpequw_p", ALTIVEC_BUILTIN_VCMPEQUW_P }, { MASK_ALTIVEC, CODE_FOR_vector_gt_v4si_p, "__builtin_altivec_vcmpgtsw_p", ALTIVEC_BUILTIN_VCMPGTSW_P }, { MASK_ALTIVEC, CODE_FOR_vector_gtu_v4si_p, "__builtin_altivec_vcmpgtuw_p", ALTIVEC_BUILTIN_VCMPGTUW_P }, { MASK_ALTIVEC, CODE_FOR_vector_eq_v8hi_p, "__builtin_altivec_vcmpequh_p", ALTIVEC_BUILTIN_VCMPEQUH_P }, { MASK_ALTIVEC, CODE_FOR_vector_gt_v8hi_p, "__builtin_altivec_vcmpgtsh_p", ALTIVEC_BUILTIN_VCMPGTSH_P }, { MASK_ALTIVEC, CODE_FOR_vector_gtu_v8hi_p, "__builtin_altivec_vcmpgtuh_p", ALTIVEC_BUILTIN_VCMPGTUH_P }, { MASK_ALTIVEC, CODE_FOR_vector_eq_v16qi_p, "__builtin_altivec_vcmpequb_p", ALTIVEC_BUILTIN_VCMPEQUB_P }, { MASK_ALTIVEC, CODE_FOR_vector_gt_v16qi_p, "__builtin_altivec_vcmpgtsb_p", ALTIVEC_BUILTIN_VCMPGTSB_P }, { MASK_ALTIVEC, CODE_FOR_vector_gtu_v16qi_p, "__builtin_altivec_vcmpgtub_p", ALTIVEC_BUILTIN_VCMPGTUB_P }, { MASK_VSX, CODE_FOR_vector_eq_v4sf_p, "__builtin_vsx_xvcmpeqsp_p", VSX_BUILTIN_XVCMPEQSP_P }, { MASK_VSX, CODE_FOR_vector_ge_v4sf_p, "__builtin_vsx_xvcmpgesp_p", VSX_BUILTIN_XVCMPGESP_P }, { MASK_VSX, CODE_FOR_vector_gt_v4sf_p, "__builtin_vsx_xvcmpgtsp_p", VSX_BUILTIN_XVCMPGTSP_P }, { MASK_VSX, CODE_FOR_vector_eq_v2df_p, "__builtin_vsx_xvcmpeqdp_p", VSX_BUILTIN_XVCMPEQDP_P }, { MASK_VSX, CODE_FOR_vector_ge_v2df_p, "__builtin_vsx_xvcmpgedp_p", VSX_BUILTIN_XVCMPGEDP_P }, { MASK_VSX, CODE_FOR_vector_gt_v2df_p, "__builtin_vsx_xvcmpgtdp_p", VSX_BUILTIN_XVCMPGTDP_P }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_vcmpeq_p", ALTIVEC_BUILTIN_VCMPEQ_P }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_vcmpgt_p", ALTIVEC_BUILTIN_VCMPGT_P }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_nothing, "__builtin_vec_vcmpge_p", ALTIVEC_BUILTIN_VCMPGE_P } }; /* SPE predicates. */ static struct builtin_description bdesc_spe_predicates[] = { /* Place-holder. Leave as first. */ { 0, CODE_FOR_spe_evcmpeq, "__builtin_spe_evcmpeq", SPE_BUILTIN_EVCMPEQ }, { 0, CODE_FOR_spe_evcmpgts, "__builtin_spe_evcmpgts", SPE_BUILTIN_EVCMPGTS }, { 0, CODE_FOR_spe_evcmpgtu, "__builtin_spe_evcmpgtu", SPE_BUILTIN_EVCMPGTU }, { 0, CODE_FOR_spe_evcmplts, "__builtin_spe_evcmplts", SPE_BUILTIN_EVCMPLTS }, { 0, CODE_FOR_spe_evcmpltu, "__builtin_spe_evcmpltu", SPE_BUILTIN_EVCMPLTU }, { 0, CODE_FOR_spe_evfscmpeq, "__builtin_spe_evfscmpeq", SPE_BUILTIN_EVFSCMPEQ }, { 0, CODE_FOR_spe_evfscmpgt, "__builtin_spe_evfscmpgt", SPE_BUILTIN_EVFSCMPGT }, { 0, CODE_FOR_spe_evfscmplt, "__builtin_spe_evfscmplt", SPE_BUILTIN_EVFSCMPLT }, { 0, CODE_FOR_spe_evfststeq, "__builtin_spe_evfststeq", SPE_BUILTIN_EVFSTSTEQ }, { 0, CODE_FOR_spe_evfststgt, "__builtin_spe_evfststgt", SPE_BUILTIN_EVFSTSTGT }, /* Place-holder. Leave as last. */ { 0, CODE_FOR_spe_evfststlt, "__builtin_spe_evfststlt", SPE_BUILTIN_EVFSTSTLT }, }; /* SPE evsel predicates. */ static struct builtin_description bdesc_spe_evsel[] = { /* Place-holder. Leave as first. */ { 0, CODE_FOR_spe_evcmpgts, "__builtin_spe_evsel_gts", SPE_BUILTIN_EVSEL_CMPGTS }, { 0, CODE_FOR_spe_evcmpgtu, "__builtin_spe_evsel_gtu", SPE_BUILTIN_EVSEL_CMPGTU }, { 0, CODE_FOR_spe_evcmplts, "__builtin_spe_evsel_lts", SPE_BUILTIN_EVSEL_CMPLTS }, { 0, CODE_FOR_spe_evcmpltu, "__builtin_spe_evsel_ltu", SPE_BUILTIN_EVSEL_CMPLTU }, { 0, CODE_FOR_spe_evcmpeq, "__builtin_spe_evsel_eq", SPE_BUILTIN_EVSEL_CMPEQ }, { 0, CODE_FOR_spe_evfscmpgt, "__builtin_spe_evsel_fsgt", SPE_BUILTIN_EVSEL_FSCMPGT }, { 0, CODE_FOR_spe_evfscmplt, "__builtin_spe_evsel_fslt", SPE_BUILTIN_EVSEL_FSCMPLT }, { 0, CODE_FOR_spe_evfscmpeq, "__builtin_spe_evsel_fseq", SPE_BUILTIN_EVSEL_FSCMPEQ }, { 0, CODE_FOR_spe_evfststgt, "__builtin_spe_evsel_fststgt", SPE_BUILTIN_EVSEL_FSTSTGT }, { 0, CODE_FOR_spe_evfststlt, "__builtin_spe_evsel_fststlt", SPE_BUILTIN_EVSEL_FSTSTLT }, /* Place-holder. Leave as last. */ { 0, CODE_FOR_spe_evfststeq, "__builtin_spe_evsel_fststeq", SPE_BUILTIN_EVSEL_FSTSTEQ }, }; /* PAIRED predicates. */ static const struct builtin_description bdesc_paired_preds[] = { /* Place-holder. Leave as first. */ { 0, CODE_FOR_paired_cmpu0, "__builtin_paired_cmpu0", PAIRED_BUILTIN_CMPU0 }, /* Place-holder. Leave as last. */ { 0, CODE_FOR_paired_cmpu1, "__builtin_paired_cmpu1", PAIRED_BUILTIN_CMPU1 }, }; /* ABS* operations. */ static const struct builtin_description bdesc_abs[] = { { MASK_ALTIVEC, CODE_FOR_absv4si2, "__builtin_altivec_abs_v4si", ALTIVEC_BUILTIN_ABS_V4SI }, { MASK_ALTIVEC, CODE_FOR_absv8hi2, "__builtin_altivec_abs_v8hi", ALTIVEC_BUILTIN_ABS_V8HI }, { MASK_ALTIVEC, CODE_FOR_absv4sf2, "__builtin_altivec_abs_v4sf", ALTIVEC_BUILTIN_ABS_V4SF }, { MASK_ALTIVEC, CODE_FOR_absv16qi2, "__builtin_altivec_abs_v16qi", ALTIVEC_BUILTIN_ABS_V16QI }, { MASK_ALTIVEC, CODE_FOR_altivec_abss_v4si, "__builtin_altivec_abss_v4si", ALTIVEC_BUILTIN_ABSS_V4SI }, { MASK_ALTIVEC, CODE_FOR_altivec_abss_v8hi, "__builtin_altivec_abss_v8hi", ALTIVEC_BUILTIN_ABSS_V8HI }, { MASK_ALTIVEC, CODE_FOR_altivec_abss_v16qi, "__builtin_altivec_abss_v16qi", ALTIVEC_BUILTIN_ABSS_V16QI }, { MASK_VSX, CODE_FOR_absv2df2, "__builtin_vsx_xvabsdp", VSX_BUILTIN_XVABSDP }, { MASK_VSX, CODE_FOR_vsx_nabsv2df2, "__builtin_vsx_xvnabsdp", VSX_BUILTIN_XVNABSDP }, { MASK_VSX, CODE_FOR_absv4sf2, "__builtin_vsx_xvabssp", VSX_BUILTIN_XVABSSP }, { MASK_VSX, CODE_FOR_vsx_nabsv4sf2, "__builtin_vsx_xvnabssp", VSX_BUILTIN_XVNABSSP }, }; /* Simple unary operations: VECb = foo (unsigned literal) or VECb = foo (VECa). */ static struct builtin_description bdesc_1arg[] = { { MASK_ALTIVEC, CODE_FOR_altivec_vexptefp, "__builtin_altivec_vexptefp", ALTIVEC_BUILTIN_VEXPTEFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vlogefp, "__builtin_altivec_vlogefp", ALTIVEC_BUILTIN_VLOGEFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vrefp, "__builtin_altivec_vrefp", ALTIVEC_BUILTIN_VREFP }, { MASK_ALTIVEC, CODE_FOR_vector_floorv4sf2, "__builtin_altivec_vrfim", ALTIVEC_BUILTIN_VRFIM }, { MASK_ALTIVEC, CODE_FOR_altivec_vrfin, "__builtin_altivec_vrfin", ALTIVEC_BUILTIN_VRFIN }, { MASK_ALTIVEC, CODE_FOR_vector_ceilv4sf2, "__builtin_altivec_vrfip", ALTIVEC_BUILTIN_VRFIP }, { MASK_ALTIVEC, CODE_FOR_vector_btruncv4sf2, "__builtin_altivec_vrfiz", ALTIVEC_BUILTIN_VRFIZ }, { MASK_ALTIVEC, CODE_FOR_altivec_vrsqrtefp, "__builtin_altivec_vrsqrtefp", ALTIVEC_BUILTIN_VRSQRTEFP }, { MASK_ALTIVEC, CODE_FOR_altivec_vspltisb, "__builtin_altivec_vspltisb", ALTIVEC_BUILTIN_VSPLTISB }, { MASK_ALTIVEC, CODE_FOR_altivec_vspltish, "__builtin_altivec_vspltish", ALTIVEC_BUILTIN_VSPLTISH }, { MASK_ALTIVEC, CODE_FOR_altivec_vspltisw, "__builtin_altivec_vspltisw", ALTIVEC_BUILTIN_VSPLTISW }, { MASK_ALTIVEC, CODE_FOR_altivec_vupkhsb, "__builtin_altivec_vupkhsb", ALTIVEC_BUILTIN_VUPKHSB }, { MASK_ALTIVEC, CODE_FOR_altivec_vupkhpx, "__builtin_altivec_vupkhpx", ALTIVEC_BUILTIN_VUPKHPX }, { MASK_ALTIVEC, CODE_FOR_altivec_vupkhsh, "__builtin_altivec_vupkhsh", ALTIVEC_BUILTIN_VUPKHSH }, { MASK_ALTIVEC, CODE_FOR_altivec_vupklsb, "__builtin_altivec_vupklsb", ALTIVEC_BUILTIN_VUPKLSB }, { MASK_ALTIVEC, CODE_FOR_altivec_vupklpx, "__builtin_altivec_vupklpx", ALTIVEC_BUILTIN_VUPKLPX }, { MASK_ALTIVEC, CODE_FOR_altivec_vupklsh, "__builtin_altivec_vupklsh", ALTIVEC_BUILTIN_VUPKLSH }, { MASK_VSX, CODE_FOR_negv2df2, "__builtin_vsx_xvnegdp", VSX_BUILTIN_XVNEGDP }, { MASK_VSX, CODE_FOR_sqrtv2df2, "__builtin_vsx_xvsqrtdp", VSX_BUILTIN_XVSQRTDP }, { MASK_VSX, CODE_FOR_vsx_rsqrtev2df2, "__builtin_vsx_xvrsqrtedp", VSX_BUILTIN_XVRSQRTEDP }, { MASK_VSX, CODE_FOR_vsx_tsqrtv2df2_fe, "__builtin_vsx_xvtsqrtdp_fe", VSX_BUILTIN_XVTSQRTDP_FE }, { MASK_VSX, CODE_FOR_vsx_tsqrtv2df2_fg, "__builtin_vsx_xvtsqrtdp_fg", VSX_BUILTIN_XVTSQRTDP_FG }, { MASK_VSX, CODE_FOR_vsx_frev2df2, "__builtin_vsx_xvredp", VSX_BUILTIN_XVREDP }, { MASK_VSX, CODE_FOR_negv4sf2, "__builtin_vsx_xvnegsp", VSX_BUILTIN_XVNEGSP }, { MASK_VSX, CODE_FOR_sqrtv4sf2, "__builtin_vsx_xvsqrtsp", VSX_BUILTIN_XVSQRTSP }, { MASK_VSX, CODE_FOR_vsx_rsqrtev4sf2, "__builtin_vsx_xvrsqrtesp", VSX_BUILTIN_XVRSQRTESP }, { MASK_VSX, CODE_FOR_vsx_tsqrtv4sf2_fe, "__builtin_vsx_xvtsqrtsp_fe", VSX_BUILTIN_XVTSQRTSP_FE }, { MASK_VSX, CODE_FOR_vsx_tsqrtv4sf2_fg, "__builtin_vsx_xvtsqrtsp_fg", VSX_BUILTIN_XVTSQRTSP_FG }, { MASK_VSX, CODE_FOR_vsx_frev4sf2, "__builtin_vsx_xvresp", VSX_BUILTIN_XVRESP }, { MASK_VSX, CODE_FOR_vsx_xscvdpsp, "__builtin_vsx_xscvdpsp", VSX_BUILTIN_XSCVDPSP }, { MASK_VSX, CODE_FOR_vsx_xscvdpsp, "__builtin_vsx_xscvspdp", VSX_BUILTIN_XSCVSPDP }, { MASK_VSX, CODE_FOR_vsx_xvcvdpsp, "__builtin_vsx_xvcvdpsp", VSX_BUILTIN_XVCVDPSP }, { MASK_VSX, CODE_FOR_vsx_xvcvspdp, "__builtin_vsx_xvcvspdp", VSX_BUILTIN_XVCVSPDP }, { MASK_VSX, CODE_FOR_vsx_tsqrtdf2_fe, "__builtin_vsx_xstsqrtdp_fe", VSX_BUILTIN_XSTSQRTDP_FE }, { MASK_VSX, CODE_FOR_vsx_tsqrtdf2_fg, "__builtin_vsx_xstsqrtdp_fg", VSX_BUILTIN_XSTSQRTDP_FG }, { MASK_VSX, CODE_FOR_vsx_fix_truncv2dfv2di2, "__builtin_vsx_xvcvdpsxds", VSX_BUILTIN_XVCVDPSXDS }, { MASK_VSX, CODE_FOR_vsx_fixuns_truncv2dfv2di2, "__builtin_vsx_xvcvdpuxds", VSX_BUILTIN_XVCVDPUXDS }, { MASK_VSX, CODE_FOR_vsx_fixuns_truncv2dfv2di2, "__builtin_vsx_xvcvdpuxds_uns", VSX_BUILTIN_XVCVDPUXDS_UNS }, { MASK_VSX, CODE_FOR_vsx_floatv2div2df2, "__builtin_vsx_xvcvsxddp", VSX_BUILTIN_XVCVSXDDP }, { MASK_VSX, CODE_FOR_vsx_floatunsv2div2df2, "__builtin_vsx_xvcvuxddp", VSX_BUILTIN_XVCVUXDDP }, { MASK_VSX, CODE_FOR_vsx_floatunsv2div2df2, "__builtin_vsx_xvcvuxddp_uns", VSX_BUILTIN_XVCVUXDDP_UNS }, { MASK_VSX, CODE_FOR_vsx_fix_truncv4sfv4si2, "__builtin_vsx_xvcvspsxws", VSX_BUILTIN_XVCVSPSXWS }, { MASK_VSX, CODE_FOR_vsx_fixuns_truncv4sfv4si2, "__builtin_vsx_xvcvspuxws", VSX_BUILTIN_XVCVSPUXWS }, { MASK_VSX, CODE_FOR_vsx_floatv4siv4sf2, "__builtin_vsx_xvcvsxwsp", VSX_BUILTIN_XVCVSXWSP }, { MASK_VSX, CODE_FOR_vsx_floatunsv4siv4sf2, "__builtin_vsx_xvcvuxwsp", VSX_BUILTIN_XVCVUXWSP }, { MASK_VSX, CODE_FOR_vsx_xvcvdpsxws, "__builtin_vsx_xvcvdpsxws", VSX_BUILTIN_XVCVDPSXWS }, { MASK_VSX, CODE_FOR_vsx_xvcvdpuxws, "__builtin_vsx_xvcvdpuxws", VSX_BUILTIN_XVCVDPUXWS }, { MASK_VSX, CODE_FOR_vsx_xvcvsxwdp, "__builtin_vsx_xvcvsxwdp", VSX_BUILTIN_XVCVSXWDP }, { MASK_VSX, CODE_FOR_vsx_xvcvuxwdp, "__builtin_vsx_xvcvuxwdp", VSX_BUILTIN_XVCVUXWDP }, { MASK_VSX, CODE_FOR_vsx_xvrdpi, "__builtin_vsx_xvrdpi", VSX_BUILTIN_XVRDPI }, { MASK_VSX, CODE_FOR_vsx_xvrdpic, "__builtin_vsx_xvrdpic", VSX_BUILTIN_XVRDPIC }, { MASK_VSX, CODE_FOR_vsx_floorv2df2, "__builtin_vsx_xvrdpim", VSX_BUILTIN_XVRDPIM }, { MASK_VSX, CODE_FOR_vsx_ceilv2df2, "__builtin_vsx_xvrdpip", VSX_BUILTIN_XVRDPIP }, { MASK_VSX, CODE_FOR_vsx_btruncv2df2, "__builtin_vsx_xvrdpiz", VSX_BUILTIN_XVRDPIZ }, { MASK_VSX, CODE_FOR_vsx_xvcvspsxds, "__builtin_vsx_xvcvspsxds", VSX_BUILTIN_XVCVSPSXDS }, { MASK_VSX, CODE_FOR_vsx_xvcvspuxds, "__builtin_vsx_xvcvspuxds", VSX_BUILTIN_XVCVSPUXDS }, { MASK_VSX, CODE_FOR_vsx_xvcvsxdsp, "__builtin_vsx_xvcvsxdsp", VSX_BUILTIN_XVCVSXDSP }, { MASK_VSX, CODE_FOR_vsx_xvcvuxdsp, "__builtin_vsx_xvcvuxdsp", VSX_BUILTIN_XVCVUXDSP }, { MASK_VSX, CODE_FOR_vsx_xvrspi, "__builtin_vsx_xvrspi", VSX_BUILTIN_XVRSPI }, { MASK_VSX, CODE_FOR_vsx_xvrspic, "__builtin_vsx_xvrspic", VSX_BUILTIN_XVRSPIC }, { MASK_VSX, CODE_FOR_vsx_floorv4sf2, "__builtin_vsx_xvrspim", VSX_BUILTIN_XVRSPIM }, { MASK_VSX, CODE_FOR_vsx_ceilv4sf2, "__builtin_vsx_xvrspip", VSX_BUILTIN_XVRSPIP }, { MASK_VSX, CODE_FOR_vsx_btruncv4sf2, "__builtin_vsx_xvrspiz", VSX_BUILTIN_XVRSPIZ }, { MASK_VSX, CODE_FOR_vsx_xsrdpi, "__builtin_vsx_xsrdpi", VSX_BUILTIN_XSRDPI }, { MASK_VSX, CODE_FOR_vsx_xsrdpic, "__builtin_vsx_xsrdpic", VSX_BUILTIN_XSRDPIC }, { MASK_VSX, CODE_FOR_vsx_floordf2, "__builtin_vsx_xsrdpim", VSX_BUILTIN_XSRDPIM }, { MASK_VSX, CODE_FOR_vsx_ceildf2, "__builtin_vsx_xsrdpip", VSX_BUILTIN_XSRDPIP }, { MASK_VSX, CODE_FOR_vsx_btruncdf2, "__builtin_vsx_xsrdpiz", VSX_BUILTIN_XSRDPIZ }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_abs", ALTIVEC_BUILTIN_VEC_ABS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_abss", ALTIVEC_BUILTIN_VEC_ABSS }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_ceil", ALTIVEC_BUILTIN_VEC_CEIL }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_expte", ALTIVEC_BUILTIN_VEC_EXPTE }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_floor", ALTIVEC_BUILTIN_VEC_FLOOR }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_loge", ALTIVEC_BUILTIN_VEC_LOGE }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_mtvscr", ALTIVEC_BUILTIN_VEC_MTVSCR }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_re", ALTIVEC_BUILTIN_VEC_RE }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_round", ALTIVEC_BUILTIN_VEC_ROUND }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_rsqrte", ALTIVEC_BUILTIN_VEC_RSQRTE }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_trunc", ALTIVEC_BUILTIN_VEC_TRUNC }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_unpackh", ALTIVEC_BUILTIN_VEC_UNPACKH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vupkhsh", ALTIVEC_BUILTIN_VEC_VUPKHSH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vupkhpx", ALTIVEC_BUILTIN_VEC_VUPKHPX }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vupkhsb", ALTIVEC_BUILTIN_VEC_VUPKHSB }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_unpackl", ALTIVEC_BUILTIN_VEC_UNPACKL }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vupklpx", ALTIVEC_BUILTIN_VEC_VUPKLPX }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vupklsh", ALTIVEC_BUILTIN_VEC_VUPKLSH }, { MASK_ALTIVEC, CODE_FOR_nothing, "__builtin_vec_vupklsb", ALTIVEC_BUILTIN_VEC_VUPKLSB }, { MASK_VSX, CODE_FOR_nothing, "__builtin_vec_nearbyint", ALTIVEC_BUILTIN_VEC_NEARBYINT }, { MASK_VSX, CODE_FOR_nothing, "__builtin_vec_rint", ALTIVEC_BUILTIN_VEC_RINT }, { MASK_VSX, CODE_FOR_nothing, "__builtin_vec_sqrt", ALTIVEC_BUILTIN_VEC_SQRT }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_floatv4siv4sf2, "__builtin_vec_float_sisf", VECTOR_BUILTIN_FLOAT_V4SI_V4SF }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_unsigned_floatv4siv4sf2, "__builtin_vec_uns_float_sisf", VECTOR_BUILTIN_UNSFLOAT_V4SI_V4SF }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_fix_truncv4sfv4si2, "__builtin_vec_fix_sfsi", VECTOR_BUILTIN_FIX_V4SF_V4SI }, { MASK_ALTIVEC|MASK_VSX, CODE_FOR_fixuns_truncv4sfv4si2, "__builtin_vec_fixuns_sfsi", VECTOR_BUILTIN_FIXUNS_V4SF_V4SI }, /* The SPE unary builtins must start with SPE_BUILTIN_EVABS and end with SPE_BUILTIN_EVSUBFUSIAAW. */ { 0, CODE_FOR_absv2si2, "__builtin_spe_evabs", SPE_BUILTIN_EVABS }, { 0, CODE_FOR_spe_evaddsmiaaw, "__builtin_spe_evaddsmiaaw", SPE_BUILTIN_EVADDSMIAAW }, { 0, CODE_FOR_spe_evaddssiaaw, "__builtin_spe_evaddssiaaw", SPE_BUILTIN_EVADDSSIAAW }, { 0, CODE_FOR_spe_evaddumiaaw, "__builtin_spe_evaddumiaaw", SPE_BUILTIN_EVADDUMIAAW }, { 0, CODE_FOR_spe_evaddusiaaw, "__builtin_spe_evaddusiaaw", SPE_BUILTIN_EVADDUSIAAW }, { 0, CODE_FOR_spe_evcntlsw, "__builtin_spe_evcntlsw", SPE_BUILTIN_EVCNTLSW }, { 0, CODE_FOR_spe_evcntlzw, "__builtin_spe_evcntlzw", SPE_BUILTIN_EVCNTLZW }, { 0, CODE_FOR_spe_evextsb, "__builtin_spe_evextsb", SPE_BUILTIN_EVEXTSB }, { 0, CODE_FOR_spe_evextsh, "__builtin_spe_evextsh", SPE_BUILTIN_EVEXTSH }, { 0, CODE_FOR_spe_evfsabs, "__builtin_spe_evfsabs", SPE_BUILTIN_EVFSABS }, { 0, CODE_FOR_spe_evfscfsf, "__builtin_spe_evfscfsf", SPE_BUILTIN_EVFSCFSF }, { 0, CODE_FOR_spe_evfscfsi, "__builtin_spe_evfscfsi", SPE_BUILTIN_EVFSCFSI }, { 0, CODE_FOR_spe_evfscfuf, "__builtin_spe_evfscfuf", SPE_BUILTIN_EVFSCFUF }, { 0, CODE_FOR_spe_evfscfui, "__builtin_spe_evfscfui", SPE_BUILTIN_EVFSCFUI }, { 0, CODE_FOR_spe_evfsctsf, "__builtin_spe_evfsctsf", SPE_BUILTIN_EVFSCTSF }, { 0, CODE_FOR_spe_evfsctsi, "__builtin_spe_evfsctsi", SPE_BUILTIN_EVFSCTSI }, { 0, CODE_FOR_spe_evfsctsiz, "__builtin_spe_evfsctsiz", SPE_BUILTIN_EVFSCTSIZ }, { 0, CODE_FOR_spe_evfsctuf, "__builtin_spe_evfsctuf", SPE_BUILTIN_EVFSCTUF }, { 0, CODE_FOR_spe_evfsctui, "__builtin_spe_evfsctui", SPE_BUILTIN_EVFSCTUI }, { 0, CODE_FOR_spe_evfsctuiz, "__builtin_spe_evfsctuiz", SPE_BUILTIN_EVFSCTUIZ }, { 0, CODE_FOR_spe_evfsnabs, "__builtin_spe_evfsnabs", SPE_BUILTIN_EVFSNABS }, { 0, CODE_FOR_spe_evfsneg, "__builtin_spe_evfsneg", SPE_BUILTIN_EVFSNEG }, { 0, CODE_FOR_spe_evmra, "__builtin_spe_evmra", SPE_BUILTIN_EVMRA }, { 0, CODE_FOR_negv2si2, "__builtin_spe_evneg", SPE_BUILTIN_EVNEG }, { 0, CODE_FOR_spe_evrndw, "__builtin_spe_evrndw", SPE_BUILTIN_EVRNDW }, { 0, CODE_FOR_spe_evsubfsmiaaw, "__builtin_spe_evsubfsmiaaw", SPE_BUILTIN_EVSUBFSMIAAW }, { 0, CODE_FOR_spe_evsubfssiaaw, "__builtin_spe_evsubfssiaaw", SPE_BUILTIN_EVSUBFSSIAAW }, { 0, CODE_FOR_spe_evsubfumiaaw, "__builtin_spe_evsubfumiaaw", SPE_BUILTIN_EVSUBFUMIAAW }, /* Place-holder. Leave as last unary SPE builtin. */ { 0, CODE_FOR_spe_evsubfusiaaw, "__builtin_spe_evsubfusiaaw", SPE_BUILTIN_EVSUBFUSIAAW }, { 0, CODE_FOR_paired_absv2sf2, "__builtin_paired_absv2sf2", PAIRED_BUILTIN_ABSV2SF2 }, { 0, CODE_FOR_nabsv2sf2, "__builtin_paired_nabsv2sf2", PAIRED_BUILTIN_NABSV2SF2 }, { 0, CODE_FOR_paired_negv2sf2, "__builtin_paired_negv2sf2", PAIRED_BUILTIN_NEGV2SF2 }, { 0, CODE_FOR_sqrtv2sf2, "__builtin_paired_sqrtv2sf2", PAIRED_BUILTIN_SQRTV2SF2 }, { 0, CODE_FOR_resv2sf2, "__builtin_paired_resv2sf2", PAIRED_BUILTIN_RESV2SF2 } }; static rtx rs6000_expand_unop_builtin (enum insn_code icode, tree exp, rtx target) { rtx pat; tree arg0 = CALL_EXPR_ARG (exp, 0); rtx op0 = expand_normal (arg0); enum machine_mode tmode = insn_data[icode].operand[0].mode; enum machine_mode mode0 = insn_data[icode].operand[1].mode; if (icode == CODE_FOR_nothing) /* Builtin not supported on this processor. */ return 0; /* If we got invalid arguments bail out before generating bad rtl. */ if (arg0 == error_mark_node) return const0_rtx; if (icode == CODE_FOR_altivec_vspltisb || icode == CODE_FOR_altivec_vspltish || icode == CODE_FOR_altivec_vspltisw || icode == CODE_FOR_spe_evsplatfi || icode == CODE_FOR_spe_evsplati) { /* Only allow 5-bit *signed* literals. */ if (GET_CODE (op0) != CONST_INT || INTVAL (op0) > 15 || INTVAL (op0) < -16) { error ("argument 1 must be a 5-bit signed literal"); return const0_rtx; } } if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); pat = GEN_FCN (icode) (target, op0); if (! pat) return 0; emit_insn (pat); return target; } static rtx altivec_expand_abs_builtin (enum insn_code icode, tree exp, rtx target) { rtx pat, scratch1, scratch2; tree arg0 = CALL_EXPR_ARG (exp, 0); rtx op0 = expand_normal (arg0); enum machine_mode tmode = insn_data[icode].operand[0].mode; enum machine_mode mode0 = insn_data[icode].operand[1].mode; /* If we have invalid arguments, bail out before generating bad rtl. */ if (arg0 == error_mark_node) return const0_rtx; if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); scratch1 = gen_reg_rtx (mode0); scratch2 = gen_reg_rtx (mode0); pat = GEN_FCN (icode) (target, op0, scratch1, scratch2); if (! pat) return 0; emit_insn (pat); return target; } static rtx rs6000_expand_binop_builtin (enum insn_code icode, tree exp, rtx target) { rtx pat; tree arg0 = CALL_EXPR_ARG (exp, 0); tree arg1 = CALL_EXPR_ARG (exp, 1); rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); enum machine_mode tmode = insn_data[icode].operand[0].mode; enum machine_mode mode0 = insn_data[icode].operand[1].mode; enum machine_mode mode1 = insn_data[icode].operand[2].mode; if (icode == CODE_FOR_nothing) /* Builtin not supported on this processor. */ return 0; /* If we got invalid arguments bail out before generating bad rtl. */ if (arg0 == error_mark_node || arg1 == error_mark_node) return const0_rtx; if (icode == CODE_FOR_altivec_vcfux || icode == CODE_FOR_altivec_vcfsx || icode == CODE_FOR_altivec_vctsxs || icode == CODE_FOR_altivec_vctuxs || icode == CODE_FOR_altivec_vspltb || icode == CODE_FOR_altivec_vsplth || icode == CODE_FOR_altivec_vspltw || icode == CODE_FOR_spe_evaddiw || icode == CODE_FOR_spe_evldd || icode == CODE_FOR_spe_evldh || icode == CODE_FOR_spe_evldw || icode == CODE_FOR_spe_evlhhesplat || icode == CODE_FOR_spe_evlhhossplat || icode == CODE_FOR_spe_evlhhousplat || icode == CODE_FOR_spe_evlwhe || icode == CODE_FOR_spe_evlwhos || icode == CODE_FOR_spe_evlwhou || icode == CODE_FOR_spe_evlwhsplat || icode == CODE_FOR_spe_evlwwsplat || icode == CODE_FOR_spe_evrlwi || icode == CODE_FOR_spe_evslwi || icode == CODE_FOR_spe_evsrwis || icode == CODE_FOR_spe_evsubifw || icode == CODE_FOR_spe_evsrwiu) { /* Only allow 5-bit unsigned literals. */ STRIP_NOPS (arg1); if (TREE_CODE (arg1) != INTEGER_CST || TREE_INT_CST_LOW (arg1) & ~0x1f) { error ("argument 2 must be a 5-bit unsigned literal"); return const0_rtx; } } if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) op1 = copy_to_mode_reg (mode1, op1); pat = GEN_FCN (icode) (target, op0, op1); if (! pat) return 0; emit_insn (pat); return target; } static rtx altivec_expand_predicate_builtin (enum insn_code icode, tree exp, rtx target) { rtx pat, scratch; tree cr6_form = CALL_EXPR_ARG (exp, 0); tree arg0 = CALL_EXPR_ARG (exp, 1); tree arg1 = CALL_EXPR_ARG (exp, 2); rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); enum machine_mode tmode = SImode; enum machine_mode mode0 = insn_data[icode].operand[1].mode; enum machine_mode mode1 = insn_data[icode].operand[2].mode; int cr6_form_int; if (TREE_CODE (cr6_form) != INTEGER_CST) { error ("argument 1 of __builtin_altivec_predicate must be a constant"); return const0_rtx; } else cr6_form_int = TREE_INT_CST_LOW (cr6_form); gcc_assert (mode0 == mode1); /* If we have invalid arguments, bail out before generating bad rtl. */ if (arg0 == error_mark_node || arg1 == error_mark_node) return const0_rtx; if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) op1 = copy_to_mode_reg (mode1, op1); scratch = gen_reg_rtx (mode0); pat = GEN_FCN (icode) (scratch, op0, op1); if (! pat) return 0; emit_insn (pat); /* The vec_any* and vec_all* predicates use the same opcodes for two different operations, but the bits in CR6 will be different depending on what information we want. So we have to play tricks with CR6 to get the right bits out. If you think this is disgusting, look at the specs for the AltiVec predicates. */ switch (cr6_form_int) { case 0: emit_insn (gen_cr6_test_for_zero (target)); break; case 1: emit_insn (gen_cr6_test_for_zero_reverse (target)); break; case 2: emit_insn (gen_cr6_test_for_lt (target)); break; case 3: emit_insn (gen_cr6_test_for_lt_reverse (target)); break; default: error ("argument 1 of __builtin_altivec_predicate is out of range"); break; } return target; } static rtx paired_expand_lv_builtin (enum insn_code icode, tree exp, rtx target) { rtx pat, addr; tree arg0 = CALL_EXPR_ARG (exp, 0); tree arg1 = CALL_EXPR_ARG (exp, 1); enum machine_mode tmode = insn_data[icode].operand[0].mode; enum machine_mode mode0 = Pmode; enum machine_mode mode1 = Pmode; rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); if (icode == CODE_FOR_nothing) /* Builtin not supported on this processor. */ return 0; /* If we got invalid arguments bail out before generating bad rtl. */ if (arg0 == error_mark_node || arg1 == error_mark_node) return const0_rtx; if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); op1 = copy_to_mode_reg (mode1, op1); if (op0 == const0_rtx) { addr = gen_rtx_MEM (tmode, op1); } else { op0 = copy_to_mode_reg (mode0, op0); addr = gen_rtx_MEM (tmode, gen_rtx_PLUS (Pmode, op0, op1)); } pat = GEN_FCN (icode) (target, addr); if (! pat) return 0; emit_insn (pat); return target; } static rtx altivec_expand_lv_builtin (enum insn_code icode, tree exp, rtx target, bool blk) { rtx pat, addr; tree arg0 = CALL_EXPR_ARG (exp, 0); tree arg1 = CALL_EXPR_ARG (exp, 1); enum machine_mode tmode = insn_data[icode].operand[0].mode; enum machine_mode mode0 = Pmode; enum machine_mode mode1 = Pmode; rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); if (icode == CODE_FOR_nothing) /* Builtin not supported on this processor. */ return 0; /* If we got invalid arguments bail out before generating bad rtl. */ if (arg0 == error_mark_node || arg1 == error_mark_node) return const0_rtx; if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); op1 = copy_to_mode_reg (mode1, op1); if (op0 == const0_rtx) { addr = gen_rtx_MEM (blk ? BLKmode : tmode, op1); } else { op0 = copy_to_mode_reg (mode0, op0); addr = gen_rtx_MEM (blk ? BLKmode : tmode, gen_rtx_PLUS (Pmode, op0, op1)); } pat = GEN_FCN (icode) (target, addr); if (! pat) return 0; emit_insn (pat); return target; } static rtx spe_expand_stv_builtin (enum insn_code icode, tree exp) { tree arg0 = CALL_EXPR_ARG (exp, 0); tree arg1 = CALL_EXPR_ARG (exp, 1); tree arg2 = CALL_EXPR_ARG (exp, 2); rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); rtx op2 = expand_normal (arg2); rtx pat; enum machine_mode mode0 = insn_data[icode].operand[0].mode; enum machine_mode mode1 = insn_data[icode].operand[1].mode; enum machine_mode mode2 = insn_data[icode].operand[2].mode; /* Invalid arguments. Bail before doing anything stoopid! */ if (arg0 == error_mark_node || arg1 == error_mark_node || arg2 == error_mark_node) return const0_rtx; if (! (*insn_data[icode].operand[2].predicate) (op0, mode2)) op0 = copy_to_mode_reg (mode2, op0); if (! (*insn_data[icode].operand[0].predicate) (op1, mode0)) op1 = copy_to_mode_reg (mode0, op1); if (! (*insn_data[icode].operand[1].predicate) (op2, mode1)) op2 = copy_to_mode_reg (mode1, op2); pat = GEN_FCN (icode) (op1, op2, op0); if (pat) emit_insn (pat); return NULL_RTX; } static rtx paired_expand_stv_builtin (enum insn_code icode, tree exp) { tree arg0 = CALL_EXPR_ARG (exp, 0); tree arg1 = CALL_EXPR_ARG (exp, 1); tree arg2 = CALL_EXPR_ARG (exp, 2); rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); rtx op2 = expand_normal (arg2); rtx pat, addr; enum machine_mode tmode = insn_data[icode].operand[0].mode; enum machine_mode mode1 = Pmode; enum machine_mode mode2 = Pmode; /* Invalid arguments. Bail before doing anything stoopid! */ if (arg0 == error_mark_node || arg1 == error_mark_node || arg2 == error_mark_node) return const0_rtx; if (! (*insn_data[icode].operand[1].predicate) (op0, tmode)) op0 = copy_to_mode_reg (tmode, op0); op2 = copy_to_mode_reg (mode2, op2); if (op1 == const0_rtx) { addr = gen_rtx_MEM (tmode, op2); } else { op1 = copy_to_mode_reg (mode1, op1); addr = gen_rtx_MEM (tmode, gen_rtx_PLUS (Pmode, op1, op2)); } pat = GEN_FCN (icode) (addr, op0); if (pat) emit_insn (pat); return NULL_RTX; } static rtx altivec_expand_stv_builtin (enum insn_code icode, tree exp) { tree arg0 = CALL_EXPR_ARG (exp, 0); tree arg1 = CALL_EXPR_ARG (exp, 1); tree arg2 = CALL_EXPR_ARG (exp, 2); rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); rtx op2 = expand_normal (arg2); rtx pat, addr; enum machine_mode tmode = insn_data[icode].operand[0].mode; enum machine_mode mode1 = Pmode; enum machine_mode mode2 = Pmode; /* Invalid arguments. Bail before doing anything stoopid! */ if (arg0 == error_mark_node || arg1 == error_mark_node || arg2 == error_mark_node) return const0_rtx; if (! (*insn_data[icode].operand[1].predicate) (op0, tmode)) op0 = copy_to_mode_reg (tmode, op0); op2 = copy_to_mode_reg (mode2, op2); if (op1 == const0_rtx) { addr = gen_rtx_MEM (tmode, op2); } else { op1 = copy_to_mode_reg (mode1, op1); addr = gen_rtx_MEM (tmode, gen_rtx_PLUS (Pmode, op1, op2)); } pat = GEN_FCN (icode) (addr, op0); if (pat) emit_insn (pat); return NULL_RTX; } static rtx rs6000_expand_ternop_builtin (enum insn_code icode, tree exp, rtx target) { rtx pat; tree arg0 = CALL_EXPR_ARG (exp, 0); tree arg1 = CALL_EXPR_ARG (exp, 1); tree arg2 = CALL_EXPR_ARG (exp, 2); rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); rtx op2 = expand_normal (arg2); enum machine_mode tmode = insn_data[icode].operand[0].mode; enum machine_mode mode0 = insn_data[icode].operand[1].mode; enum machine_mode mode1 = insn_data[icode].operand[2].mode; enum machine_mode mode2 = insn_data[icode].operand[3].mode; if (icode == CODE_FOR_nothing) /* Builtin not supported on this processor. */ return 0; /* If we got invalid arguments bail out before generating bad rtl. */ if (arg0 == error_mark_node || arg1 == error_mark_node || arg2 == error_mark_node) return const0_rtx; switch (icode) { case CODE_FOR_altivec_vsldoi_v4sf: case CODE_FOR_altivec_vsldoi_v4si: case CODE_FOR_altivec_vsldoi_v8hi: case CODE_FOR_altivec_vsldoi_v16qi: /* Only allow 4-bit unsigned literals. */ STRIP_NOPS (arg2); if (TREE_CODE (arg2) != INTEGER_CST || TREE_INT_CST_LOW (arg2) & ~0xf) { error ("argument 3 must be a 4-bit unsigned literal"); return const0_rtx; } break; case CODE_FOR_vsx_xxpermdi_v2df: case CODE_FOR_vsx_xxpermdi_v2di: case CODE_FOR_vsx_xxsldwi_v16qi: case CODE_FOR_vsx_xxsldwi_v8hi: case CODE_FOR_vsx_xxsldwi_v4si: case CODE_FOR_vsx_xxsldwi_v4sf: case CODE_FOR_vsx_xxsldwi_v2di: case CODE_FOR_vsx_xxsldwi_v2df: /* Only allow 2-bit unsigned literals. */ STRIP_NOPS (arg2); if (TREE_CODE (arg2) != INTEGER_CST || TREE_INT_CST_LOW (arg2) & ~0x3) { error ("argument 3 must be a 2-bit unsigned literal"); return const0_rtx; } break; case CODE_FOR_vsx_set_v2df: case CODE_FOR_vsx_set_v2di: /* Only allow 1-bit unsigned literals. */ STRIP_NOPS (arg2); if (TREE_CODE (arg2) != INTEGER_CST || TREE_INT_CST_LOW (arg2) & ~0x1) { error ("argument 3 must be a 1-bit unsigned literal"); return const0_rtx; } break; default: break; } if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) op1 = copy_to_mode_reg (mode1, op1); if (! (*insn_data[icode].operand[3].predicate) (op2, mode2)) op2 = copy_to_mode_reg (mode2, op2); if (TARGET_PAIRED_FLOAT && icode == CODE_FOR_selv2sf4) pat = GEN_FCN (icode) (target, op0, op1, op2, CONST0_RTX (SFmode)); else pat = GEN_FCN (icode) (target, op0, op1, op2); if (! pat) return 0; emit_insn (pat); return target; } /* Expand the lvx builtins. */ static rtx altivec_expand_ld_builtin (tree exp, rtx target, bool *expandedp) { tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); unsigned int fcode = DECL_FUNCTION_CODE (fndecl); tree arg0; enum machine_mode tmode, mode0; rtx pat, op0; enum insn_code icode; switch (fcode) { case ALTIVEC_BUILTIN_LD_INTERNAL_16qi: icode = CODE_FOR_vector_load_v16qi; break; case ALTIVEC_BUILTIN_LD_INTERNAL_8hi: icode = CODE_FOR_vector_load_v8hi; break; case ALTIVEC_BUILTIN_LD_INTERNAL_4si: icode = CODE_FOR_vector_load_v4si; break; case ALTIVEC_BUILTIN_LD_INTERNAL_4sf: icode = CODE_FOR_vector_load_v4sf; break; default: *expandedp = false; return NULL_RTX; } *expandedp = true; arg0 = CALL_EXPR_ARG (exp, 0); op0 = expand_normal (arg0); tmode = insn_data[icode].operand[0].mode; mode0 = insn_data[icode].operand[1].mode; if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) op0 = gen_rtx_MEM (mode0, copy_to_mode_reg (Pmode, op0)); pat = GEN_FCN (icode) (target, op0); if (! pat) return 0; emit_insn (pat); return target; } /* Expand the stvx builtins. */ static rtx altivec_expand_st_builtin (tree exp, rtx target ATTRIBUTE_UNUSED, bool *expandedp) { tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); unsigned int fcode = DECL_FUNCTION_CODE (fndecl); tree arg0, arg1; enum machine_mode mode0, mode1; rtx pat, op0, op1; enum insn_code icode; switch (fcode) { case ALTIVEC_BUILTIN_ST_INTERNAL_16qi: icode = CODE_FOR_vector_store_v16qi; break; case ALTIVEC_BUILTIN_ST_INTERNAL_8hi: icode = CODE_FOR_vector_store_v8hi; break; case ALTIVEC_BUILTIN_ST_INTERNAL_4si: icode = CODE_FOR_vector_store_v4si; break; case ALTIVEC_BUILTIN_ST_INTERNAL_4sf: icode = CODE_FOR_vector_store_v4sf; break; default: *expandedp = false; return NULL_RTX; } arg0 = CALL_EXPR_ARG (exp, 0); arg1 = CALL_EXPR_ARG (exp, 1); op0 = expand_normal (arg0); op1 = expand_normal (arg1); mode0 = insn_data[icode].operand[0].mode; mode1 = insn_data[icode].operand[1].mode; if (! (*insn_data[icode].operand[0].predicate) (op0, mode0)) op0 = gen_rtx_MEM (mode0, copy_to_mode_reg (Pmode, op0)); if (! (*insn_data[icode].operand[1].predicate) (op1, mode1)) op1 = copy_to_mode_reg (mode1, op1); pat = GEN_FCN (icode) (op0, op1); if (pat) emit_insn (pat); *expandedp = true; return NULL_RTX; } /* Expand the dst builtins. */ static rtx altivec_expand_dst_builtin (tree exp, rtx target ATTRIBUTE_UNUSED, bool *expandedp) { tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); unsigned int fcode = DECL_FUNCTION_CODE (fndecl); tree arg0, arg1, arg2; enum machine_mode mode0, mode1, mode2; rtx pat, op0, op1, op2; const struct builtin_description *d; size_t i; *expandedp = false; /* Handle DST variants. */ d = bdesc_dst; for (i = 0; i < ARRAY_SIZE (bdesc_dst); i++, d++) if (d->code == fcode) { arg0 = CALL_EXPR_ARG (exp, 0); arg1 = CALL_EXPR_ARG (exp, 1); arg2 = CALL_EXPR_ARG (exp, 2); op0 = expand_normal (arg0); op1 = expand_normal (arg1); op2 = expand_normal (arg2); mode0 = insn_data[d->icode].operand[0].mode; mode1 = insn_data[d->icode].operand[1].mode; mode2 = insn_data[d->icode].operand[2].mode; /* Invalid arguments, bail out before generating bad rtl. */ if (arg0 == error_mark_node || arg1 == error_mark_node || arg2 == error_mark_node) return const0_rtx; *expandedp = true; STRIP_NOPS (arg2); if (TREE_CODE (arg2) != INTEGER_CST || TREE_INT_CST_LOW (arg2) & ~0x3) { error ("argument to %qs must be a 2-bit unsigned literal", d->name); return const0_rtx; } if (! (*insn_data[d->icode].operand[0].predicate) (op0, mode0)) op0 = copy_to_mode_reg (Pmode, op0); if (! (*insn_data[d->icode].operand[1].predicate) (op1, mode1)) op1 = copy_to_mode_reg (mode1, op1); pat = GEN_FCN (d->icode) (op0, op1, op2); if (pat != 0) emit_insn (pat); return NULL_RTX; } return NULL_RTX; } /* Expand vec_init builtin. */ static rtx altivec_expand_vec_init_builtin (tree type, tree exp, rtx target) { enum machine_mode tmode = TYPE_MODE (type); enum machine_mode inner_mode = GET_MODE_INNER (tmode); int i, n_elt = GET_MODE_NUNITS (tmode); rtvec v = rtvec_alloc (n_elt); gcc_assert (VECTOR_MODE_P (tmode)); gcc_assert (n_elt == call_expr_nargs (exp)); for (i = 0; i < n_elt; ++i) { rtx x = expand_normal (CALL_EXPR_ARG (exp, i)); RTVEC_ELT (v, i) = gen_lowpart (inner_mode, x); } if (!target || !register_operand (target, tmode)) target = gen_reg_rtx (tmode); rs6000_expand_vector_init (target, gen_rtx_PARALLEL (tmode, v)); return target; } /* Return the integer constant in ARG. Constrain it to be in the range of the subparts of VEC_TYPE; issue an error if not. */ static int get_element_number (tree vec_type, tree arg) { unsigned HOST_WIDE_INT elt, max = TYPE_VECTOR_SUBPARTS (vec_type) - 1; if (!host_integerp (arg, 1) || (elt = tree_low_cst (arg, 1), elt > max)) { error ("selector must be an integer constant in the range 0..%wi", max); return 0; } return elt; } /* Expand vec_set builtin. */ static rtx altivec_expand_vec_set_builtin (tree exp) { enum machine_mode tmode, mode1; tree arg0, arg1, arg2; int elt; rtx op0, op1; arg0 = CALL_EXPR_ARG (exp, 0); arg1 = CALL_EXPR_ARG (exp, 1); arg2 = CALL_EXPR_ARG (exp, 2); tmode = TYPE_MODE (TREE_TYPE (arg0)); mode1 = TYPE_MODE (TREE_TYPE (TREE_TYPE (arg0))); gcc_assert (VECTOR_MODE_P (tmode)); op0 = expand_expr (arg0, NULL_RTX, tmode, EXPAND_NORMAL); op1 = expand_expr (arg1, NULL_RTX, mode1, EXPAND_NORMAL); elt = get_element_number (TREE_TYPE (arg0), arg2); if (GET_MODE (op1) != mode1 && GET_MODE (op1) != VOIDmode) op1 = convert_modes (mode1, GET_MODE (op1), op1, true); op0 = force_reg (tmode, op0); op1 = force_reg (mode1, op1); rs6000_expand_vector_set (op0, op1, elt); return op0; } /* Expand vec_ext builtin. */ static rtx altivec_expand_vec_ext_builtin (tree exp, rtx target) { enum machine_mode tmode, mode0; tree arg0, arg1; int elt; rtx op0; arg0 = CALL_EXPR_ARG (exp, 0); arg1 = CALL_EXPR_ARG (exp, 1); op0 = expand_normal (arg0); elt = get_element_number (TREE_TYPE (arg0), arg1); tmode = TYPE_MODE (TREE_TYPE (TREE_TYPE (arg0))); mode0 = TYPE_MODE (TREE_TYPE (arg0)); gcc_assert (VECTOR_MODE_P (mode0)); op0 = force_reg (mode0, op0); if (optimize || !target || !register_operand (target, tmode)) target = gen_reg_rtx (tmode); rs6000_expand_vector_extract (target, op0, elt); return target; } /* Expand the builtin in EXP and store the result in TARGET. Store true in *EXPANDEDP if we found a builtin to expand. */ static rtx altivec_expand_builtin (tree exp, rtx target, bool *expandedp) { const struct builtin_description *d; const struct builtin_description_predicates *dp; size_t i; enum insn_code icode; tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); tree arg0; rtx op0, pat; enum machine_mode tmode, mode0; unsigned int fcode = DECL_FUNCTION_CODE (fndecl); if ((fcode >= ALTIVEC_BUILTIN_OVERLOADED_FIRST && fcode <= ALTIVEC_BUILTIN_OVERLOADED_LAST) || (fcode >= VSX_BUILTIN_OVERLOADED_FIRST && fcode <= VSX_BUILTIN_OVERLOADED_LAST)) { *expandedp = true; error ("unresolved overload for Altivec builtin %qF", fndecl); return const0_rtx; } target = altivec_expand_ld_builtin (exp, target, expandedp); if (*expandedp) return target; target = altivec_expand_st_builtin (exp, target, expandedp); if (*expandedp) return target; target = altivec_expand_dst_builtin (exp, target, expandedp); if (*expandedp) return target; *expandedp = true; switch (fcode) { case ALTIVEC_BUILTIN_STVX: return altivec_expand_stv_builtin (CODE_FOR_altivec_stvx, exp); case ALTIVEC_BUILTIN_STVEBX: return altivec_expand_stv_builtin (CODE_FOR_altivec_stvebx, exp); case ALTIVEC_BUILTIN_STVEHX: return altivec_expand_stv_builtin (CODE_FOR_altivec_stvehx, exp); case ALTIVEC_BUILTIN_STVEWX: return altivec_expand_stv_builtin (CODE_FOR_altivec_stvewx, exp); case ALTIVEC_BUILTIN_STVXL: return altivec_expand_stv_builtin (CODE_FOR_altivec_stvxl, exp); case ALTIVEC_BUILTIN_STVLX: return altivec_expand_stv_builtin (CODE_FOR_altivec_stvlx, exp); case ALTIVEC_BUILTIN_STVLXL: return altivec_expand_stv_builtin (CODE_FOR_altivec_stvlxl, exp); case ALTIVEC_BUILTIN_STVRX: return altivec_expand_stv_builtin (CODE_FOR_altivec_stvrx, exp); case ALTIVEC_BUILTIN_STVRXL: return altivec_expand_stv_builtin (CODE_FOR_altivec_stvrxl, exp); case ALTIVEC_BUILTIN_MFVSCR: icode = CODE_FOR_altivec_mfvscr; tmode = insn_data[icode].operand[0].mode; if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); pat = GEN_FCN (icode) (target); if (! pat) return 0; emit_insn (pat); return target; case ALTIVEC_BUILTIN_MTVSCR: icode = CODE_FOR_altivec_mtvscr; arg0 = CALL_EXPR_ARG (exp, 0); op0 = expand_normal (arg0); mode0 = insn_data[icode].operand[0].mode; /* If we got invalid arguments bail out before generating bad rtl. */ if (arg0 == error_mark_node) return const0_rtx; if (! (*insn_data[icode].operand[0].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); pat = GEN_FCN (icode) (op0); if (pat) emit_insn (pat); return NULL_RTX; case ALTIVEC_BUILTIN_DSSALL: emit_insn (gen_altivec_dssall ()); return NULL_RTX; case ALTIVEC_BUILTIN_DSS: icode = CODE_FOR_altivec_dss; arg0 = CALL_EXPR_ARG (exp, 0); STRIP_NOPS (arg0); op0 = expand_normal (arg0); mode0 = insn_data[icode].operand[0].mode; /* If we got invalid arguments bail out before generating bad rtl. */ if (arg0 == error_mark_node) return const0_rtx; if (TREE_CODE (arg0) != INTEGER_CST || TREE_INT_CST_LOW (arg0) & ~0x3) { error ("argument to dss must be a 2-bit unsigned literal"); return const0_rtx; } if (! (*insn_data[icode].operand[0].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); emit_insn (gen_altivec_dss (op0)); return NULL_RTX; case ALTIVEC_BUILTIN_VEC_INIT_V4SI: case ALTIVEC_BUILTIN_VEC_INIT_V8HI: case ALTIVEC_BUILTIN_VEC_INIT_V16QI: case ALTIVEC_BUILTIN_VEC_INIT_V4SF: case VSX_BUILTIN_VEC_INIT_V2DF: case VSX_BUILTIN_VEC_INIT_V2DI: return altivec_expand_vec_init_builtin (TREE_TYPE (exp), exp, target); case ALTIVEC_BUILTIN_VEC_SET_V4SI: case ALTIVEC_BUILTIN_VEC_SET_V8HI: case ALTIVEC_BUILTIN_VEC_SET_V16QI: case ALTIVEC_BUILTIN_VEC_SET_V4SF: case VSX_BUILTIN_VEC_SET_V2DF: case VSX_BUILTIN_VEC_SET_V2DI: return altivec_expand_vec_set_builtin (exp); case ALTIVEC_BUILTIN_VEC_EXT_V4SI: case ALTIVEC_BUILTIN_VEC_EXT_V8HI: case ALTIVEC_BUILTIN_VEC_EXT_V16QI: case ALTIVEC_BUILTIN_VEC_EXT_V4SF: case VSX_BUILTIN_VEC_EXT_V2DF: case VSX_BUILTIN_VEC_EXT_V2DI: return altivec_expand_vec_ext_builtin (exp, target); default: break; /* Fall through. */ } /* Expand abs* operations. */ d = bdesc_abs; for (i = 0; i < ARRAY_SIZE (bdesc_abs); i++, d++) if (d->code == fcode) return altivec_expand_abs_builtin (d->icode, exp, target); /* Expand the AltiVec predicates. */ dp = bdesc_altivec_preds; for (i = 0; i < ARRAY_SIZE (bdesc_altivec_preds); i++, dp++) if (dp->code == fcode) return altivec_expand_predicate_builtin (dp->icode, exp, target); /* LV* are funky. We initialized them differently. */ switch (fcode) { case ALTIVEC_BUILTIN_LVSL: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvsl, exp, target, false); case ALTIVEC_BUILTIN_LVSR: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvsr, exp, target, false); case ALTIVEC_BUILTIN_LVEBX: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvebx, exp, target, false); case ALTIVEC_BUILTIN_LVEHX: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvehx, exp, target, false); case ALTIVEC_BUILTIN_LVEWX: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvewx, exp, target, false); case ALTIVEC_BUILTIN_LVXL: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvxl, exp, target, false); case ALTIVEC_BUILTIN_LVX: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvx, exp, target, false); case ALTIVEC_BUILTIN_LVLX: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvlx, exp, target, true); case ALTIVEC_BUILTIN_LVLXL: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvlxl, exp, target, true); case ALTIVEC_BUILTIN_LVRX: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvrx, exp, target, true); case ALTIVEC_BUILTIN_LVRXL: return altivec_expand_lv_builtin (CODE_FOR_altivec_lvrxl, exp, target, true); default: break; /* Fall through. */ } *expandedp = false; return NULL_RTX; } /* Expand the builtin in EXP and store the result in TARGET. Store true in *EXPANDEDP if we found a builtin to expand. */ static rtx paired_expand_builtin (tree exp, rtx target, bool * expandedp) { tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); unsigned int fcode = DECL_FUNCTION_CODE (fndecl); const struct builtin_description *d; size_t i; *expandedp = true; switch (fcode) { case PAIRED_BUILTIN_STX: return paired_expand_stv_builtin (CODE_FOR_paired_stx, exp); case PAIRED_BUILTIN_LX: return paired_expand_lv_builtin (CODE_FOR_paired_lx, exp, target); default: break; /* Fall through. */ } /* Expand the paired predicates. */ d = bdesc_paired_preds; for (i = 0; i < ARRAY_SIZE (bdesc_paired_preds); i++, d++) if (d->code == fcode) return paired_expand_predicate_builtin (d->icode, exp, target); *expandedp = false; return NULL_RTX; } /* Binops that need to be initialized manually, but can be expanded automagically by rs6000_expand_binop_builtin. */ static struct builtin_description bdesc_2arg_spe[] = { { 0, CODE_FOR_spe_evlddx, "__builtin_spe_evlddx", SPE_BUILTIN_EVLDDX }, { 0, CODE_FOR_spe_evldwx, "__builtin_spe_evldwx", SPE_BUILTIN_EVLDWX }, { 0, CODE_FOR_spe_evldhx, "__builtin_spe_evldhx", SPE_BUILTIN_EVLDHX }, { 0, CODE_FOR_spe_evlwhex, "__builtin_spe_evlwhex", SPE_BUILTIN_EVLWHEX }, { 0, CODE_FOR_spe_evlwhoux, "__builtin_spe_evlwhoux", SPE_BUILTIN_EVLWHOUX }, { 0, CODE_FOR_spe_evlwhosx, "__builtin_spe_evlwhosx", SPE_BUILTIN_EVLWHOSX }, { 0, CODE_FOR_spe_evlwwsplatx, "__builtin_spe_evlwwsplatx", SPE_BUILTIN_EVLWWSPLATX }, { 0, CODE_FOR_spe_evlwhsplatx, "__builtin_spe_evlwhsplatx", SPE_BUILTIN_EVLWHSPLATX }, { 0, CODE_FOR_spe_evlhhesplatx, "__builtin_spe_evlhhesplatx", SPE_BUILTIN_EVLHHESPLATX }, { 0, CODE_FOR_spe_evlhhousplatx, "__builtin_spe_evlhhousplatx", SPE_BUILTIN_EVLHHOUSPLATX }, { 0, CODE_FOR_spe_evlhhossplatx, "__builtin_spe_evlhhossplatx", SPE_BUILTIN_EVLHHOSSPLATX }, { 0, CODE_FOR_spe_evldd, "__builtin_spe_evldd", SPE_BUILTIN_EVLDD }, { 0, CODE_FOR_spe_evldw, "__builtin_spe_evldw", SPE_BUILTIN_EVLDW }, { 0, CODE_FOR_spe_evldh, "__builtin_spe_evldh", SPE_BUILTIN_EVLDH }, { 0, CODE_FOR_spe_evlwhe, "__builtin_spe_evlwhe", SPE_BUILTIN_EVLWHE }, { 0, CODE_FOR_spe_evlwhou, "__builtin_spe_evlwhou", SPE_BUILTIN_EVLWHOU }, { 0, CODE_FOR_spe_evlwhos, "__builtin_spe_evlwhos", SPE_BUILTIN_EVLWHOS }, { 0, CODE_FOR_spe_evlwwsplat, "__builtin_spe_evlwwsplat", SPE_BUILTIN_EVLWWSPLAT }, { 0, CODE_FOR_spe_evlwhsplat, "__builtin_spe_evlwhsplat", SPE_BUILTIN_EVLWHSPLAT }, { 0, CODE_FOR_spe_evlhhesplat, "__builtin_spe_evlhhesplat", SPE_BUILTIN_EVLHHESPLAT }, { 0, CODE_FOR_spe_evlhhousplat, "__builtin_spe_evlhhousplat", SPE_BUILTIN_EVLHHOUSPLAT }, { 0, CODE_FOR_spe_evlhhossplat, "__builtin_spe_evlhhossplat", SPE_BUILTIN_EVLHHOSSPLAT } }; /* Expand the builtin in EXP and store the result in TARGET. Store true in *EXPANDEDP if we found a builtin to expand. This expands the SPE builtins that are not simple unary and binary operations. */ static rtx spe_expand_builtin (tree exp, rtx target, bool *expandedp) { tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); tree arg1, arg0; unsigned int fcode = DECL_FUNCTION_CODE (fndecl); enum insn_code icode; enum machine_mode tmode, mode0; rtx pat, op0; struct builtin_description *d; size_t i; *expandedp = true; /* Syntax check for a 5-bit unsigned immediate. */ switch (fcode) { case SPE_BUILTIN_EVSTDD: case SPE_BUILTIN_EVSTDH: case SPE_BUILTIN_EVSTDW: case SPE_BUILTIN_EVSTWHE: case SPE_BUILTIN_EVSTWHO: case SPE_BUILTIN_EVSTWWE: case SPE_BUILTIN_EVSTWWO: arg1 = CALL_EXPR_ARG (exp, 2); if (TREE_CODE (arg1) != INTEGER_CST || TREE_INT_CST_LOW (arg1) & ~0x1f) { error ("argument 2 must be a 5-bit unsigned literal"); return const0_rtx; } break; default: break; } /* The evsplat*i instructions are not quite generic. */ switch (fcode) { case SPE_BUILTIN_EVSPLATFI: return rs6000_expand_unop_builtin (CODE_FOR_spe_evsplatfi, exp, target); case SPE_BUILTIN_EVSPLATI: return rs6000_expand_unop_builtin (CODE_FOR_spe_evsplati, exp, target); default: break; } d = (struct builtin_description *) bdesc_2arg_spe; for (i = 0; i < ARRAY_SIZE (bdesc_2arg_spe); ++i, ++d) if (d->code == fcode) return rs6000_expand_binop_builtin (d->icode, exp, target); d = (struct builtin_description *) bdesc_spe_predicates; for (i = 0; i < ARRAY_SIZE (bdesc_spe_predicates); ++i, ++d) if (d->code == fcode) return spe_expand_predicate_builtin (d->icode, exp, target); d = (struct builtin_description *) bdesc_spe_evsel; for (i = 0; i < ARRAY_SIZE (bdesc_spe_evsel); ++i, ++d) if (d->code == fcode) return spe_expand_evsel_builtin (d->icode, exp, target); switch (fcode) { case SPE_BUILTIN_EVSTDDX: return spe_expand_stv_builtin (CODE_FOR_spe_evstddx, exp); case SPE_BUILTIN_EVSTDHX: return spe_expand_stv_builtin (CODE_FOR_spe_evstdhx, exp); case SPE_BUILTIN_EVSTDWX: return spe_expand_stv_builtin (CODE_FOR_spe_evstdwx, exp); case SPE_BUILTIN_EVSTWHEX: return spe_expand_stv_builtin (CODE_FOR_spe_evstwhex, exp); case SPE_BUILTIN_EVSTWHOX: return spe_expand_stv_builtin (CODE_FOR_spe_evstwhox, exp); case SPE_BUILTIN_EVSTWWEX: return spe_expand_stv_builtin (CODE_FOR_spe_evstwwex, exp); case SPE_BUILTIN_EVSTWWOX: return spe_expand_stv_builtin (CODE_FOR_spe_evstwwox, exp); case SPE_BUILTIN_EVSTDD: return spe_expand_stv_builtin (CODE_FOR_spe_evstdd, exp); case SPE_BUILTIN_EVSTDH: return spe_expand_stv_builtin (CODE_FOR_spe_evstdh, exp); case SPE_BUILTIN_EVSTDW: return spe_expand_stv_builtin (CODE_FOR_spe_evstdw, exp); case SPE_BUILTIN_EVSTWHE: return spe_expand_stv_builtin (CODE_FOR_spe_evstwhe, exp); case SPE_BUILTIN_EVSTWHO: return spe_expand_stv_builtin (CODE_FOR_spe_evstwho, exp); case SPE_BUILTIN_EVSTWWE: return spe_expand_stv_builtin (CODE_FOR_spe_evstwwe, exp); case SPE_BUILTIN_EVSTWWO: return spe_expand_stv_builtin (CODE_FOR_spe_evstwwo, exp); case SPE_BUILTIN_MFSPEFSCR: icode = CODE_FOR_spe_mfspefscr; tmode = insn_data[icode].operand[0].mode; if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); pat = GEN_FCN (icode) (target); if (! pat) return 0; emit_insn (pat); return target; case SPE_BUILTIN_MTSPEFSCR: icode = CODE_FOR_spe_mtspefscr; arg0 = CALL_EXPR_ARG (exp, 0); op0 = expand_normal (arg0); mode0 = insn_data[icode].operand[0].mode; if (arg0 == error_mark_node) return const0_rtx; if (! (*insn_data[icode].operand[0].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); pat = GEN_FCN (icode) (op0); if (pat) emit_insn (pat); return NULL_RTX; default: break; } *expandedp = false; return NULL_RTX; } static rtx paired_expand_predicate_builtin (enum insn_code icode, tree exp, rtx target) { rtx pat, scratch, tmp; tree form = CALL_EXPR_ARG (exp, 0); tree arg0 = CALL_EXPR_ARG (exp, 1); tree arg1 = CALL_EXPR_ARG (exp, 2); rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); enum machine_mode mode0 = insn_data[icode].operand[1].mode; enum machine_mode mode1 = insn_data[icode].operand[2].mode; int form_int; enum rtx_code code; if (TREE_CODE (form) != INTEGER_CST) { error ("argument 1 of __builtin_paired_predicate must be a constant"); return const0_rtx; } else form_int = TREE_INT_CST_LOW (form); gcc_assert (mode0 == mode1); if (arg0 == error_mark_node || arg1 == error_mark_node) return const0_rtx; if (target == 0 || GET_MODE (target) != SImode || !(*insn_data[icode].operand[0].predicate) (target, SImode)) target = gen_reg_rtx (SImode); if (!(*insn_data[icode].operand[1].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); if (!(*insn_data[icode].operand[2].predicate) (op1, mode1)) op1 = copy_to_mode_reg (mode1, op1); scratch = gen_reg_rtx (CCFPmode); pat = GEN_FCN (icode) (scratch, op0, op1); if (!pat) return const0_rtx; emit_insn (pat); switch (form_int) { /* LT bit. */ case 0: code = LT; break; /* GT bit. */ case 1: code = GT; break; /* EQ bit. */ case 2: code = EQ; break; /* UN bit. */ case 3: emit_insn (gen_move_from_CR_ov_bit (target, scratch)); return target; default: error ("argument 1 of __builtin_paired_predicate is out of range"); return const0_rtx; } tmp = gen_rtx_fmt_ee (code, SImode, scratch, const0_rtx); emit_move_insn (target, tmp); return target; } static rtx spe_expand_predicate_builtin (enum insn_code icode, tree exp, rtx target) { rtx pat, scratch, tmp; tree form = CALL_EXPR_ARG (exp, 0); tree arg0 = CALL_EXPR_ARG (exp, 1); tree arg1 = CALL_EXPR_ARG (exp, 2); rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); enum machine_mode mode0 = insn_data[icode].operand[1].mode; enum machine_mode mode1 = insn_data[icode].operand[2].mode; int form_int; enum rtx_code code; if (TREE_CODE (form) != INTEGER_CST) { error ("argument 1 of __builtin_spe_predicate must be a constant"); return const0_rtx; } else form_int = TREE_INT_CST_LOW (form); gcc_assert (mode0 == mode1); if (arg0 == error_mark_node || arg1 == error_mark_node) return const0_rtx; if (target == 0 || GET_MODE (target) != SImode || ! (*insn_data[icode].operand[0].predicate) (target, SImode)) target = gen_reg_rtx (SImode); if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) op1 = copy_to_mode_reg (mode1, op1); scratch = gen_reg_rtx (CCmode); pat = GEN_FCN (icode) (scratch, op0, op1); if (! pat) return const0_rtx; emit_insn (pat); /* There are 4 variants for each predicate: _any_, _all_, _upper_, _lower_. We use one compare, but look in different bits of the CR for each variant. There are 2 elements in each SPE simd type (upper/lower). The CR bits are set as follows: BIT0 | BIT 1 | BIT 2 | BIT 3 U | L | (U | L) | (U & L) So, for an "all" relationship, BIT 3 would be set. For an "any" relationship, BIT 2 would be set. Etc. Following traditional nomenclature, these bits map to: BIT0 | BIT 1 | BIT 2 | BIT 3 LT | GT | EQ | OV Later, we will generate rtl to look in the LT/EQ/EQ/OV bits. */ switch (form_int) { /* All variant. OV bit. */ case 0: /* We need to get to the OV bit, which is the ORDERED bit. We could generate (ordered:SI (reg:CC xx) (const_int 0)), but that's ugly and will make validate_condition_mode die. So let's just use another pattern. */ emit_insn (gen_move_from_CR_ov_bit (target, scratch)); return target; /* Any variant. EQ bit. */ case 1: code = EQ; break; /* Upper variant. LT bit. */ case 2: code = LT; break; /* Lower variant. GT bit. */ case 3: code = GT; break; default: error ("argument 1 of __builtin_spe_predicate is out of range"); return const0_rtx; } tmp = gen_rtx_fmt_ee (code, SImode, scratch, const0_rtx); emit_move_insn (target, tmp); return target; } /* The evsel builtins look like this: e = __builtin_spe_evsel_OP (a, b, c, d); and work like this: e[upper] = a[upper] *OP* b[upper] ? c[upper] : d[upper]; e[lower] = a[lower] *OP* b[lower] ? c[lower] : d[lower]; */ static rtx spe_expand_evsel_builtin (enum insn_code icode, tree exp, rtx target) { rtx pat, scratch; tree arg0 = CALL_EXPR_ARG (exp, 0); tree arg1 = CALL_EXPR_ARG (exp, 1); tree arg2 = CALL_EXPR_ARG (exp, 2); tree arg3 = CALL_EXPR_ARG (exp, 3); rtx op0 = expand_normal (arg0); rtx op1 = expand_normal (arg1); rtx op2 = expand_normal (arg2); rtx op3 = expand_normal (arg3); enum machine_mode mode0 = insn_data[icode].operand[1].mode; enum machine_mode mode1 = insn_data[icode].operand[2].mode; gcc_assert (mode0 == mode1); if (arg0 == error_mark_node || arg1 == error_mark_node || arg2 == error_mark_node || arg3 == error_mark_node) return const0_rtx; if (target == 0 || GET_MODE (target) != mode0 || ! (*insn_data[icode].operand[0].predicate) (target, mode0)) target = gen_reg_rtx (mode0); if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) op0 = copy_to_mode_reg (mode0, op0); if (! (*insn_data[icode].operand[1].predicate) (op1, mode1)) op1 = copy_to_mode_reg (mode0, op1); if (! (*insn_data[icode].operand[1].predicate) (op2, mode1)) op2 = copy_to_mode_reg (mode0, op2); if (! (*insn_data[icode].operand[1].predicate) (op3, mode1)) op3 = copy_to_mode_reg (mode0, op3); /* Generate the compare. */ scratch = gen_reg_rtx (CCmode); pat = GEN_FCN (icode) (scratch, op0, op1); if (! pat) return const0_rtx; emit_insn (pat); if (mode0 == V2SImode) emit_insn (gen_spe_evsel (target, op2, op3, scratch)); else emit_insn (gen_spe_evsel_fs (target, op2, op3, scratch)); return target; } /* Expand an expression EXP that calls a built-in function, with result going to TARGET if that's convenient (and in mode MODE if that's convenient). SUBTARGET may be used as the target for computing one of EXP's operands. IGNORE is nonzero if the value is to be ignored. */ static rtx rs6000_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED, enum machine_mode mode ATTRIBUTE_UNUSED, int ignore ATTRIBUTE_UNUSED) { tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); unsigned int fcode = DECL_FUNCTION_CODE (fndecl); const struct builtin_description *d; size_t i; rtx ret; bool success; if (fcode == RS6000_BUILTIN_RECIP) return rs6000_expand_binop_builtin (CODE_FOR_recipdf3, exp, target); if (fcode == RS6000_BUILTIN_RECIPF) return rs6000_expand_binop_builtin (CODE_FOR_recipsf3, exp, target); if (fcode == RS6000_BUILTIN_RSQRTF) return rs6000_expand_unop_builtin (CODE_FOR_rsqrtsf2, exp, target); if (fcode == RS6000_BUILTIN_BSWAP_HI) return rs6000_expand_unop_builtin (CODE_FOR_bswaphi2, exp, target); if (fcode == POWER7_BUILTIN_BPERMD) return rs6000_expand_binop_builtin (((TARGET_64BIT) ? CODE_FOR_bpermd_di : CODE_FOR_bpermd_si), exp, target); if (fcode == ALTIVEC_BUILTIN_MASK_FOR_LOAD || fcode == ALTIVEC_BUILTIN_MASK_FOR_STORE) { int icode = (int) CODE_FOR_altivec_lvsr; enum machine_mode tmode = insn_data[icode].operand[0].mode; enum machine_mode mode = insn_data[icode].operand[1].mode; tree arg; rtx op, addr, pat; gcc_assert (TARGET_ALTIVEC); arg = CALL_EXPR_ARG (exp, 0); gcc_assert (TREE_CODE (TREE_TYPE (arg)) == POINTER_TYPE); op = expand_expr (arg, NULL_RTX, Pmode, EXPAND_NORMAL); addr = memory_address (mode, op); if (fcode == ALTIVEC_BUILTIN_MASK_FOR_STORE) op = addr; else { /* For the load case need to negate the address. */ op = gen_reg_rtx (GET_MODE (addr)); emit_insn (gen_rtx_SET (VOIDmode, op, gen_rtx_NEG (GET_MODE (addr), addr))); } op = gen_rtx_MEM (mode, op); if (target == 0 || GET_MODE (target) != tmode || ! (*insn_data[icode].operand[0].predicate) (target, tmode)) target = gen_reg_rtx (tmode); /*pat = gen_altivec_lvsr (target, op);*/ pat = GEN_FCN (icode) (target, op); if (!pat) return 0; emit_insn (pat); return target; } /* FIXME: There's got to be a nicer way to handle this case than constructing a new CALL_EXPR. */ if (fcode == ALTIVEC_BUILTIN_VCFUX || fcode == ALTIVEC_BUILTIN_VCFSX || fcode == ALTIVEC_BUILTIN_VCTUXS || fcode == ALTIVEC_BUILTIN_VCTSXS) { if (call_expr_nargs (exp) == 1) exp = build_call_nary (TREE_TYPE (exp), CALL_EXPR_FN (exp), 2, CALL_EXPR_ARG (exp, 0), integer_zero_node); } if (TARGET_ALTIVEC) { ret = altivec_expand_builtin (exp, target, &success); if (success) return ret; } if (TARGET_SPE) { ret = spe_expand_builtin (exp, target, &success); if (success) return ret; } if (TARGET_PAIRED_FLOAT) { ret = paired_expand_builtin (exp, target, &success); if (success) return ret; } gcc_assert (TARGET_ALTIVEC || TARGET_VSX || TARGET_SPE || TARGET_PAIRED_FLOAT); /* Handle simple unary operations. */ d = (struct builtin_description *) bdesc_1arg; for (i = 0; i < ARRAY_SIZE (bdesc_1arg); i++, d++) if (d->code == fcode) return rs6000_expand_unop_builtin (d->icode, exp, target); /* Handle simple binary operations. */ d = (struct builtin_description *) bdesc_2arg; for (i = 0; i < ARRAY_SIZE (bdesc_2arg); i++, d++) if (d->code == fcode) return rs6000_expand_binop_builtin (d->icode, exp, target); /* Handle simple ternary operations. */ d = bdesc_3arg; for (i = 0; i < ARRAY_SIZE (bdesc_3arg); i++, d++) if (d->code == fcode) return rs6000_expand_ternop_builtin (d->icode, exp, target); gcc_unreachable (); } static void rs6000_init_builtins (void) { tree tdecl; V2SI_type_node = build_vector_type (intSI_type_node, 2); V2SF_type_node = build_vector_type (float_type_node, 2); V2DI_type_node = build_vector_type (intDI_type_node, 2); V2DF_type_node = build_vector_type (double_type_node, 2); V4HI_type_node = build_vector_type (intHI_type_node, 4); V4SI_type_node = build_vector_type (intSI_type_node, 4); V4SF_type_node = build_vector_type (float_type_node, 4); V8HI_type_node = build_vector_type (intHI_type_node, 8); V16QI_type_node = build_vector_type (intQI_type_node, 16); unsigned_V16QI_type_node = build_vector_type (unsigned_intQI_type_node, 16); unsigned_V8HI_type_node = build_vector_type (unsigned_intHI_type_node, 8); unsigned_V4SI_type_node = build_vector_type (unsigned_intSI_type_node, 4); unsigned_V2DI_type_node = build_vector_type (unsigned_intDI_type_node, 2); opaque_V2SF_type_node = build_opaque_vector_type (float_type_node, 2); opaque_V2SI_type_node = build_opaque_vector_type (intSI_type_node, 2); opaque_p_V2SI_type_node = build_pointer_type (opaque_V2SI_type_node); opaque_V4SI_type_node = build_opaque_vector_type (intSI_type_node, 4); /* The 'vector bool ...' types must be kept distinct from 'vector unsigned ...' types, especially in C++ land. Similarly, 'vector pixel' is distinct from 'vector unsigned short'. */ bool_char_type_node = build_distinct_type_copy (unsigned_intQI_type_node); bool_short_type_node = build_distinct_type_copy (unsigned_intHI_type_node); bool_int_type_node = build_distinct_type_copy (unsigned_intSI_type_node); bool_long_type_node = build_distinct_type_copy (unsigned_intDI_type_node); pixel_type_node = build_distinct_type_copy (unsigned_intHI_type_node); long_integer_type_internal_node = long_integer_type_node; long_unsigned_type_internal_node = long_unsigned_type_node; intQI_type_internal_node = intQI_type_node; uintQI_type_internal_node = unsigned_intQI_type_node; intHI_type_internal_node = intHI_type_node; uintHI_type_internal_node = unsigned_intHI_type_node; intSI_type_internal_node = intSI_type_node; uintSI_type_internal_node = unsigned_intSI_type_node; intDI_type_internal_node = intDI_type_node; uintDI_type_internal_node = unsigned_intDI_type_node; float_type_internal_node = float_type_node; double_type_internal_node = float_type_node; void_type_internal_node = void_type_node; /* Initialize the modes for builtin_function_type, mapping a machine mode to tree type node. */ builtin_mode_to_type[QImode][0] = integer_type_node; builtin_mode_to_type[HImode][0] = integer_type_node; builtin_mode_to_type[SImode][0] = intSI_type_node; builtin_mode_to_type[SImode][1] = unsigned_intSI_type_node; builtin_mode_to_type[DImode][0] = intDI_type_node; builtin_mode_to_type[DImode][1] = unsigned_intDI_type_node; builtin_mode_to_type[SFmode][0] = float_type_node; builtin_mode_to_type[DFmode][0] = double_type_node; builtin_mode_to_type[V2SImode][0] = V2SI_type_node; builtin_mode_to_type[V2SFmode][0] = V2SF_type_node; builtin_mode_to_type[V2DImode][0] = V2DI_type_node; builtin_mode_to_type[V2DImode][1] = unsigned_V2DI_type_node; builtin_mode_to_type[V2DFmode][0] = V2DF_type_node; builtin_mode_to_type[V4HImode][0] = V4HI_type_node; builtin_mode_to_type[V4SImode][0] = V4SI_type_node; builtin_mode_to_type[V4SImode][1] = unsigned_V4SI_type_node; builtin_mode_to_type[V4SFmode][0] = V4SF_type_node; builtin_mode_to_type[V8HImode][0] = V8HI_type_node; builtin_mode_to_type[V8HImode][1] = unsigned_V8HI_type_node; builtin_mode_to_type[V16QImode][0] = V16QI_type_node; builtin_mode_to_type[V16QImode][1] = unsigned_V16QI_type_node; tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__bool char"), bool_char_type_node); TYPE_NAME (bool_char_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__bool short"), bool_short_type_node); TYPE_NAME (bool_short_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__bool int"), bool_int_type_node); TYPE_NAME (bool_int_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__pixel"), pixel_type_node); TYPE_NAME (pixel_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); bool_V16QI_type_node = build_vector_type (bool_char_type_node, 16); bool_V8HI_type_node = build_vector_type (bool_short_type_node, 8); bool_V4SI_type_node = build_vector_type (bool_int_type_node, 4); bool_V2DI_type_node = build_vector_type (bool_long_type_node, 2); pixel_V8HI_type_node = build_vector_type (pixel_type_node, 8); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector unsigned char"), unsigned_V16QI_type_node); TYPE_NAME (unsigned_V16QI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector signed char"), V16QI_type_node); TYPE_NAME (V16QI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector __bool char"), bool_V16QI_type_node); TYPE_NAME ( bool_V16QI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector unsigned short"), unsigned_V8HI_type_node); TYPE_NAME (unsigned_V8HI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector signed short"), V8HI_type_node); TYPE_NAME (V8HI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector __bool short"), bool_V8HI_type_node); TYPE_NAME (bool_V8HI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector unsigned int"), unsigned_V4SI_type_node); TYPE_NAME (unsigned_V4SI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector signed int"), V4SI_type_node); TYPE_NAME (V4SI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector __bool int"), bool_V4SI_type_node); TYPE_NAME (bool_V4SI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector float"), V4SF_type_node); TYPE_NAME (V4SF_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector __pixel"), pixel_V8HI_type_node); TYPE_NAME (pixel_V8HI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); if (TARGET_VSX) { tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector double"), V2DF_type_node); TYPE_NAME (V2DF_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector long"), V2DI_type_node); TYPE_NAME (V2DI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector unsigned long"), unsigned_V2DI_type_node); TYPE_NAME (unsigned_V2DI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); tdecl = build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__vector __bool long"), bool_V2DI_type_node); TYPE_NAME (bool_V2DI_type_node) = tdecl; (*lang_hooks.decls.pushdecl) (tdecl); } if (TARGET_PAIRED_FLOAT) paired_init_builtins (); if (TARGET_SPE) spe_init_builtins (); if (TARGET_ALTIVEC) altivec_init_builtins (); if (TARGET_ALTIVEC || TARGET_SPE || TARGET_PAIRED_FLOAT || TARGET_VSX) rs6000_common_init_builtins (); if (TARGET_PPC_GFXOPT) { tree ftype = builtin_function_type (SFmode, SFmode, SFmode, VOIDmode, RS6000_BUILTIN_RECIPF, "__builtin_recipdivf"); def_builtin (MASK_PPC_GFXOPT, "__builtin_recipdivf", ftype, RS6000_BUILTIN_RECIPF); ftype = builtin_function_type (SFmode, SFmode, VOIDmode, VOIDmode, RS6000_BUILTIN_RSQRTF, "__builtin_rsqrtf"); def_builtin (MASK_PPC_GFXOPT, "__builtin_rsqrtf", ftype, RS6000_BUILTIN_RSQRTF); } if (TARGET_POPCNTB) { tree ftype = builtin_function_type (DFmode, DFmode, DFmode, VOIDmode, RS6000_BUILTIN_RECIP, "__builtin_recipdiv"); def_builtin (MASK_POPCNTB, "__builtin_recipdiv", ftype, RS6000_BUILTIN_RECIP); } if (TARGET_POPCNTD) { enum machine_mode mode = (TARGET_64BIT) ? DImode : SImode; tree ftype = builtin_function_type (mode, mode, mode, VOIDmode, POWER7_BUILTIN_BPERMD, "__builtin_bpermd"); def_builtin (MASK_POPCNTD, "__builtin_bpermd", ftype, POWER7_BUILTIN_BPERMD); } if (TARGET_POWERPC) { /* Don't use builtin_function_type here, as it maps HI/QI to SI. */ tree ftype = build_function_type_list (unsigned_intHI_type_node, unsigned_intHI_type_node, NULL_TREE); def_builtin (MASK_POWERPC, "__builtin_bswap16", ftype, RS6000_BUILTIN_BSWAP_HI); } #if TARGET_XCOFF /* AIX libm provides clog as __clog. */ if (built_in_decls [BUILT_IN_CLOG]) set_user_assembler_name (built_in_decls [BUILT_IN_CLOG], "__clog"); #endif #ifdef SUBTARGET_INIT_BUILTINS SUBTARGET_INIT_BUILTINS; #endif } /* Returns the rs6000 builtin decl for CODE. */ static tree rs6000_builtin_decl (unsigned code, bool initialize_p ATTRIBUTE_UNUSED) { if (code >= RS6000_BUILTIN_COUNT) return error_mark_node; return rs6000_builtin_decls[code]; } /* Search through a set of builtins and enable the mask bits. DESC is an array of builtins. SIZE is the total number of builtins. START is the builtin enum at which to start. END is the builtin enum at which to end. */ static void enable_mask_for_builtins (struct builtin_description *desc, int size, enum rs6000_builtins start, enum rs6000_builtins end) { int i; for (i = 0; i < size; ++i) if (desc[i].code == start) break; if (i == size) return; for (; i < size; ++i) { /* Flip all the bits on. */ desc[i].mask = target_flags; if (desc[i].code == end) break; } } static void spe_init_builtins (void) { tree endlink = void_list_node; tree puint_type_node = build_pointer_type (unsigned_type_node); tree pushort_type_node = build_pointer_type (short_unsigned_type_node); struct builtin_description *d; size_t i; tree v2si_ftype_4_v2si = build_function_type (opaque_V2SI_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, endlink))))); tree v2sf_ftype_4_v2sf = build_function_type (opaque_V2SF_type_node, tree_cons (NULL_TREE, opaque_V2SF_type_node, tree_cons (NULL_TREE, opaque_V2SF_type_node, tree_cons (NULL_TREE, opaque_V2SF_type_node, tree_cons (NULL_TREE, opaque_V2SF_type_node, endlink))))); tree int_ftype_int_v2si_v2si = build_function_type (integer_type_node, tree_cons (NULL_TREE, integer_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, endlink)))); tree int_ftype_int_v2sf_v2sf = build_function_type (integer_type_node, tree_cons (NULL_TREE, integer_type_node, tree_cons (NULL_TREE, opaque_V2SF_type_node, tree_cons (NULL_TREE, opaque_V2SF_type_node, endlink)))); tree void_ftype_v2si_puint_int = build_function_type (void_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, tree_cons (NULL_TREE, puint_type_node, tree_cons (NULL_TREE, integer_type_node, endlink)))); tree void_ftype_v2si_puint_char = build_function_type (void_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, tree_cons (NULL_TREE, puint_type_node, tree_cons (NULL_TREE, char_type_node, endlink)))); tree void_ftype_v2si_pv2si_int = build_function_type (void_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, tree_cons (NULL_TREE, opaque_p_V2SI_type_node, tree_cons (NULL_TREE, integer_type_node, endlink)))); tree void_ftype_v2si_pv2si_char = build_function_type (void_type_node, tree_cons (NULL_TREE, opaque_V2SI_type_node, tree_cons (NULL_TREE, opaque_p_V2SI_type_node, tree_cons (NULL_TREE, char_type_node, endlink)))); tree void_ftype_int = build_function_type (void_type_node, tree_cons (NULL_TREE, integer_type_node, endlink)); tree int_ftype_void = build_function_type (integer_type_node, endlink); tree v2si_ftype_pv2si_int = build_function_type (opaque_V2SI_type_node, tree_cons (NULL_TREE, opaque_p_V2SI_type_node, tree_cons (NULL_TREE, integer_type_node, endlink))); tree v2si_ftype_puint_int = build_function_type (opaque_V2SI_type_node, tree_cons (NULL_TREE, puint_type_node, tree_cons (NULL_TREE, integer_type_node, endlink))); tree v2si_ftype_pushort_int = build_function_type (opaque_V2SI_type_node, tree_cons (NULL_TREE, pushort_type_node, tree_cons (NULL_TREE, integer_type_node, endlink))); tree v2si_ftype_signed_char = build_function_type (opaque_V2SI_type_node, tree_cons (NULL_TREE, signed_char_type_node, endlink)); /* The initialization of the simple binary and unary builtins is done in rs6000_common_init_builtins, but we have to enable the mask bits here manually because we have run out of `target_flags' bits. We really need to redesign this mask business. */ enable_mask_for_builtins ((struct builtin_description *) bdesc_2arg, ARRAY_SIZE (bdesc_2arg), SPE_BUILTIN_EVADDW, SPE_BUILTIN_EVXOR); enable_mask_for_builtins ((struct builtin_description *) bdesc_1arg, ARRAY_SIZE (bdesc_1arg), SPE_BUILTIN_EVABS, SPE_BUILTIN_EVSUBFUSIAAW); enable_mask_for_builtins ((struct builtin_description *) bdesc_spe_predicates, ARRAY_SIZE (bdesc_spe_predicates), SPE_BUILTIN_EVCMPEQ, SPE_BUILTIN_EVFSTSTLT); enable_mask_for_builtins ((struct builtin_description *) bdesc_spe_evsel, ARRAY_SIZE (bdesc_spe_evsel), SPE_BUILTIN_EVSEL_CMPGTS, SPE_BUILTIN_EVSEL_FSTSTEQ); (*lang_hooks.decls.pushdecl) (build_decl (BUILTINS_LOCATION, TYPE_DECL, get_identifier ("__ev64_opaque__"), opaque_V2SI_type_node)); /* Initialize irregular SPE builtins. */ def_builtin (target_flags, "__builtin_spe_mtspefscr", void_ftype_int, SPE_BUILTIN_MTSPEFSCR); def_builtin (target_flags, "__builtin_spe_mfspefscr", int_ftype_void, SPE_BUILTIN_MFSPEFSCR); def_builtin (target_flags, "__builtin_spe_evstddx", void_ftype_v2si_pv2si_int, SPE_BUILTIN_EVSTDDX); def_builtin (target_flags, "__builtin_spe_evstdhx", void_ftype_v2si_pv2si_int, SPE_BUILTIN_EVSTDHX); def_builtin (target_flags, "__builtin_spe_evstdwx", void_ftype_v2si_pv2si_int, SPE_BUILTIN_EVSTDWX); def_builtin (target_flags, "__builtin_spe_evstwhex", void_ftype_v2si_puint_int, SPE_BUILTIN_EVSTWHEX); def_builtin (target_flags, "__builtin_spe_evstwhox", void_ftype_v2si_puint_int, SPE_BUILTIN_EVSTWHOX); def_builtin (target_flags, "__builtin_spe_evstwwex", void_ftype_v2si_puint_int, SPE_BUILTIN_EVSTWWEX); def_builtin (target_flags, "__builtin_spe_evstwwox", void_ftype_v2si_puint_int, SPE_BUILTIN_EVSTWWOX); def_builtin (target_flags, "__builtin_spe_evstdd", void_ftype_v2si_pv2si_char, SPE_BUILTIN_EVSTDD); def_builtin (target_flags, "__builtin_spe_evstdh", void_ftype_v2si_pv2si_char, SPE_BUILTIN_EVSTDH); def_builtin (target_flags, "__builtin_spe_evstdw", void_ftype_v2si_pv2si_char, SPE_BUILTIN_EVSTDW); def_builtin (target_flags, "__builtin_spe_evstwhe", void_ftype_v2si_puint_char, SPE_BUILTIN_EVSTWHE); def_builtin (target_flags, "__builtin_spe_evstwho", void_ftype_v2si_puint_char, SPE_BUILTIN_EVSTWHO); def_builtin (target_flags, "__builtin_spe_evstwwe", void_ftype_v2si_puint_char, SPE_BUILTIN_EVSTWWE); def_builtin (target_flags, "__builtin_spe_evstwwo", void_ftype_v2si_puint_char, SPE_BUILTIN_EVSTWWO); def_builtin (target_flags, "__builtin_spe_evsplatfi", v2si_ftype_signed_char, SPE_BUILTIN_EVSPLATFI); def_builtin (target_flags, "__builtin_spe_evsplati", v2si_ftype_signed_char, SPE_BUILTIN_EVSPLATI); /* Loads. */ def_builtin (target_flags, "__builtin_spe_evlddx", v2si_ftype_pv2si_int, SPE_BUILTIN_EVLDDX); def_builtin (target_flags, "__builtin_spe_evldwx", v2si_ftype_pv2si_int, SPE_BUILTIN_EVLDWX); def_builtin (target_flags, "__builtin_spe_evldhx", v2si_ftype_pv2si_int, SPE_BUILTIN_EVLDHX); def_builtin (target_flags, "__builtin_spe_evlwhex", v2si_ftype_puint_int, SPE_BUILTIN_EVLWHEX); def_builtin (target_flags, "__builtin_spe_evlwhoux", v2si_ftype_puint_int, SPE_BUILTIN_EVLWHOUX); def_builtin (target_flags, "__builtin_spe_evlwhosx", v2si_ftype_puint_int, SPE_BUILTIN_EVLWHOSX); def_builtin (target_flags, "__builtin_spe_evlwwsplatx", v2si_ftype_puint_int, SPE_BUILTIN_EVLWWSPLATX); def_builtin (target_flags, "__builtin_spe_evlwhsplatx", v2si_ftype_puint_int, SPE_BUILTIN_EVLWHSPLATX); def_builtin (target_flags, "__builtin_spe_evlhhesplatx", v2si_ftype_pushort_int, SPE_BUILTIN_EVLHHESPLATX); def_builtin (target_flags, "__builtin_spe_evlhhousplatx", v2si_ftype_pushort_int, SPE_BUILTIN_EVLHHOUSPLATX); def_builtin (target_flags, "__builtin_spe_evlhhossplatx", v2si_ftype_pushort_int, SPE_BUILTIN_EVLHHOSSPLATX); def_builtin (target_flags, "__builtin_spe_evldd", v2si_ftype_pv2si_int, SPE_BUILTIN_EVLDD); def_builtin (target_flags, "__builtin_spe_evldw", v2si_ftype_pv2si_int, SPE_BUILTIN_EVLDW); def_builtin (target_flags, "__builtin_spe_evldh", v2si_ftype_pv2si_int, SPE_BUILTIN_EVLDH); def_builtin (target_flags, "__builtin_spe_evlhhesplat", v2si_ftype_pushort_int, SPE_BUILTIN_EVLHHESPLAT); def_builtin (target_flags, "__builtin_spe_evlhhossplat", v2si_ftype_pushort_int, SPE_BUILTIN_EVLHHOSSPLAT); def_builtin (target_flags, "__builtin_spe_evlhhousplat", v2si_ftype_pushort_int, SPE_BUILTIN_EVLHHOUSPLAT); def_builtin (target_flags, "__builtin_spe_evlwhe", v2si_ftype_puint_int, SPE_BUILTIN_EVLWHE); def_builtin (target_flags, "__builtin_spe_evlwhos", v2si_ftype_puint_int, SPE_BUILTIN_EVLWHOS); def_builtin (target_flags, "__builtin_spe_evlwhou", v2si_ftype_puint_int, SPE_BUILTIN_EVLWHOU); def_builtin (target_flags, "__builtin_spe_evlwhsplat", v2si_ftype_puint_int, SPE_BUILTIN_EVLWHSPLAT); def_builtin (target_flags, "__builtin_spe_evlwwsplat", v2si_ftype_puint_int, SPE_BUILTIN_EVLWWSPLAT); /* Predicates. */ d = (struct builtin_description *) bdesc_spe_predicates; for (i = 0; i < ARRAY_SIZE (bdesc_spe_predicates); ++i, d++) { tree type; switch (insn_data[d->icode].operand[1].mode) { case V2SImode: type = int_ftype_int_v2si_v2si; break; case V2SFmode: type = int_ftype_int_v2sf_v2sf; break; default: gcc_unreachable (); } def_builtin (d->mask, d->name, type, d->code); } /* Evsel predicates. */ d = (struct builtin_description *) bdesc_spe_evsel; for (i = 0; i < ARRAY_SIZE (bdesc_spe_evsel); ++i, d++) { tree type; switch (insn_data[d->icode].operand[1].mode) { case V2SImode: type = v2si_ftype_4_v2si; break; case V2SFmode: type = v2sf_ftype_4_v2sf; break; default: gcc_unreachable (); } def_builtin (d->mask, d->name, type, d->code); } } static void paired_init_builtins (void) { const struct builtin_description *d; size_t i; tree endlink = void_list_node; tree int_ftype_int_v2sf_v2sf = build_function_type (integer_type_node, tree_cons (NULL_TREE, integer_type_node, tree_cons (NULL_TREE, V2SF_type_node, tree_cons (NULL_TREE, V2SF_type_node, endlink)))); tree pcfloat_type_node = build_pointer_type (build_qualified_type (float_type_node, TYPE_QUAL_CONST)); tree v2sf_ftype_long_pcfloat = build_function_type_list (V2SF_type_node, long_integer_type_node, pcfloat_type_node, NULL_TREE); tree void_ftype_v2sf_long_pcfloat = build_function_type_list (void_type_node, V2SF_type_node, long_integer_type_node, pcfloat_type_node, NULL_TREE); def_builtin (0, "__builtin_paired_lx", v2sf_ftype_long_pcfloat, PAIRED_BUILTIN_LX); def_builtin (0, "__builtin_paired_stx", void_ftype_v2sf_long_pcfloat, PAIRED_BUILTIN_STX); /* Predicates. */ d = bdesc_paired_preds; for (i = 0; i < ARRAY_SIZE (bdesc_paired_preds); ++i, d++) { tree type; switch (insn_data[d->icode].operand[1].mode) { case V2SFmode: type = int_ftype_int_v2sf_v2sf; break; default: gcc_unreachable (); } def_builtin (d->mask, d->name, type, d->code); } } static void altivec_init_builtins (void) { const struct builtin_description *d; const struct builtin_description_predicates *dp; size_t i; tree ftype; tree pfloat_type_node = build_pointer_type (float_type_node); tree pint_type_node = build_pointer_type (integer_type_node); tree pshort_type_node = build_pointer_type (short_integer_type_node); tree pchar_type_node = build_pointer_type (char_type_node); tree pvoid_type_node = build_pointer_type (void_type_node); tree pcfloat_type_node = build_pointer_type (build_qualified_type (float_type_node, TYPE_QUAL_CONST)); tree pcint_type_node = build_pointer_type (build_qualified_type (integer_type_node, TYPE_QUAL_CONST)); tree pcshort_type_node = build_pointer_type (build_qualified_type (short_integer_type_node, TYPE_QUAL_CONST)); tree pcchar_type_node = build_pointer_type (build_qualified_type (char_type_node, TYPE_QUAL_CONST)); tree pcvoid_type_node = build_pointer_type (build_qualified_type (void_type_node, TYPE_QUAL_CONST)); tree int_ftype_opaque = build_function_type_list (integer_type_node, opaque_V4SI_type_node, NULL_TREE); tree opaque_ftype_opaque = build_function_type (integer_type_node, NULL_TREE); tree opaque_ftype_opaque_int = build_function_type_list (opaque_V4SI_type_node, opaque_V4SI_type_node, integer_type_node, NULL_TREE); tree opaque_ftype_opaque_opaque_int = build_function_type_list (opaque_V4SI_type_node, opaque_V4SI_type_node, opaque_V4SI_type_node, integer_type_node, NULL_TREE); tree int_ftype_int_opaque_opaque = build_function_type_list (integer_type_node, integer_type_node, opaque_V4SI_type_node, opaque_V4SI_type_node, NULL_TREE); tree int_ftype_int_v4si_v4si = build_function_type_list (integer_type_node, integer_type_node, V4SI_type_node, V4SI_type_node, NULL_TREE); tree v4sf_ftype_pcfloat = build_function_type_list (V4SF_type_node, pcfloat_type_node, NULL_TREE); tree void_ftype_pfloat_v4sf = build_function_type_list (void_type_node, pfloat_type_node, V4SF_type_node, NULL_TREE); tree v4si_ftype_pcint = build_function_type_list (V4SI_type_node, pcint_type_node, NULL_TREE); tree void_ftype_pint_v4si = build_function_type_list (void_type_node, pint_type_node, V4SI_type_node, NULL_TREE); tree v8hi_ftype_pcshort = build_function_type_list (V8HI_type_node, pcshort_type_node, NULL_TREE); tree void_ftype_pshort_v8hi = build_function_type_list (void_type_node, pshort_type_node, V8HI_type_node, NULL_TREE); tree v16qi_ftype_pcchar = build_function_type_list (V16QI_type_node, pcchar_type_node, NULL_TREE); tree void_ftype_pchar_v16qi = build_function_type_list (void_type_node, pchar_type_node, V16QI_type_node, NULL_TREE); tree void_ftype_v4si = build_function_type_list (void_type_node, V4SI_type_node, NULL_TREE); tree v8hi_ftype_void = build_function_type (V8HI_type_node, void_list_node); tree void_ftype_void = build_function_type (void_type_node, void_list_node); tree void_ftype_int = build_function_type_list (void_type_node, integer_type_node, NULL_TREE); tree opaque_ftype_long_pcvoid = build_function_type_list (opaque_V4SI_type_node, long_integer_type_node, pcvoid_type_node, NULL_TREE); tree v16qi_ftype_long_pcvoid = build_function_type_list (V16QI_type_node, long_integer_type_node, pcvoid_type_node, NULL_TREE); tree v8hi_ftype_long_pcvoid = build_function_type_list (V8HI_type_node, long_integer_type_node, pcvoid_type_node, NULL_TREE); tree v4si_ftype_long_pcvoid = build_function_type_list (V4SI_type_node, long_integer_type_node, pcvoid_type_node, NULL_TREE); tree void_ftype_opaque_long_pvoid = build_function_type_list (void_type_node, opaque_V4SI_type_node, long_integer_type_node, pvoid_type_node, NULL_TREE); tree void_ftype_v4si_long_pvoid = build_function_type_list (void_type_node, V4SI_type_node, long_integer_type_node, pvoid_type_node, NULL_TREE); tree void_ftype_v16qi_long_pvoid = build_function_type_list (void_type_node, V16QI_type_node, long_integer_type_node, pvoid_type_node, NULL_TREE); tree void_ftype_v8hi_long_pvoid = build_function_type_list (void_type_node, V8HI_type_node, long_integer_type_node, pvoid_type_node, NULL_TREE); tree int_ftype_int_v8hi_v8hi = build_function_type_list (integer_type_node, integer_type_node, V8HI_type_node, V8HI_type_node, NULL_TREE); tree int_ftype_int_v16qi_v16qi = build_function_type_list (integer_type_node, integer_type_node, V16QI_type_node, V16QI_type_node, NULL_TREE); tree int_ftype_int_v4sf_v4sf = build_function_type_list (integer_type_node, integer_type_node, V4SF_type_node, V4SF_type_node, NULL_TREE); tree int_ftype_int_v2df_v2df = build_function_type_list (integer_type_node, integer_type_node, V2DF_type_node, V2DF_type_node, NULL_TREE); tree v4si_ftype_v4si = build_function_type_list (V4SI_type_node, V4SI_type_node, NULL_TREE); tree v8hi_ftype_v8hi = build_function_type_list (V8HI_type_node, V8HI_type_node, NULL_TREE); tree v16qi_ftype_v16qi = build_function_type_list (V16QI_type_node, V16QI_type_node, NULL_TREE); tree v4sf_ftype_v4sf = build_function_type_list (V4SF_type_node, V4SF_type_node, NULL_TREE); tree v2df_ftype_v2df = build_function_type_list (V2DF_type_node, V2DF_type_node, NULL_TREE); tree void_ftype_pcvoid_int_int = build_function_type_list (void_type_node, pcvoid_type_node, integer_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_altivec_ld_internal_4sf", v4sf_ftype_pcfloat, ALTIVEC_BUILTIN_LD_INTERNAL_4sf); def_builtin (MASK_ALTIVEC, "__builtin_altivec_st_internal_4sf", void_ftype_pfloat_v4sf, ALTIVEC_BUILTIN_ST_INTERNAL_4sf); def_builtin (MASK_ALTIVEC, "__builtin_altivec_ld_internal_4si", v4si_ftype_pcint, ALTIVEC_BUILTIN_LD_INTERNAL_4si); def_builtin (MASK_ALTIVEC, "__builtin_altivec_st_internal_4si", void_ftype_pint_v4si, ALTIVEC_BUILTIN_ST_INTERNAL_4si); def_builtin (MASK_ALTIVEC, "__builtin_altivec_ld_internal_8hi", v8hi_ftype_pcshort, ALTIVEC_BUILTIN_LD_INTERNAL_8hi); def_builtin (MASK_ALTIVEC, "__builtin_altivec_st_internal_8hi", void_ftype_pshort_v8hi, ALTIVEC_BUILTIN_ST_INTERNAL_8hi); def_builtin (MASK_ALTIVEC, "__builtin_altivec_ld_internal_16qi", v16qi_ftype_pcchar, ALTIVEC_BUILTIN_LD_INTERNAL_16qi); def_builtin (MASK_ALTIVEC, "__builtin_altivec_st_internal_16qi", void_ftype_pchar_v16qi, ALTIVEC_BUILTIN_ST_INTERNAL_16qi); def_builtin (MASK_ALTIVEC, "__builtin_altivec_mtvscr", void_ftype_v4si, ALTIVEC_BUILTIN_MTVSCR); def_builtin (MASK_ALTIVEC, "__builtin_altivec_mfvscr", v8hi_ftype_void, ALTIVEC_BUILTIN_MFVSCR); def_builtin (MASK_ALTIVEC, "__builtin_altivec_dssall", void_ftype_void, ALTIVEC_BUILTIN_DSSALL); def_builtin (MASK_ALTIVEC, "__builtin_altivec_dss", void_ftype_int, ALTIVEC_BUILTIN_DSS); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvsl", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVSL); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvsr", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVSR); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvebx", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVEBX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvehx", v8hi_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVEHX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvewx", v4si_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVEWX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvxl", v4si_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVXL); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvx", v4si_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_stvx", void_ftype_v4si_long_pvoid, ALTIVEC_BUILTIN_STVX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_stvewx", void_ftype_v4si_long_pvoid, ALTIVEC_BUILTIN_STVEWX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_stvxl", void_ftype_v4si_long_pvoid, ALTIVEC_BUILTIN_STVXL); def_builtin (MASK_ALTIVEC, "__builtin_altivec_stvebx", void_ftype_v16qi_long_pvoid, ALTIVEC_BUILTIN_STVEBX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_stvehx", void_ftype_v8hi_long_pvoid, ALTIVEC_BUILTIN_STVEHX); def_builtin (MASK_ALTIVEC, "__builtin_vec_ld", opaque_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LD); def_builtin (MASK_ALTIVEC, "__builtin_vec_lde", opaque_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LDE); def_builtin (MASK_ALTIVEC, "__builtin_vec_ldl", opaque_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LDL); def_builtin (MASK_ALTIVEC, "__builtin_vec_lvsl", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LVSL); def_builtin (MASK_ALTIVEC, "__builtin_vec_lvsr", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LVSR); def_builtin (MASK_ALTIVEC, "__builtin_vec_lvebx", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LVEBX); def_builtin (MASK_ALTIVEC, "__builtin_vec_lvehx", v8hi_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LVEHX); def_builtin (MASK_ALTIVEC, "__builtin_vec_lvewx", v4si_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LVEWX); def_builtin (MASK_ALTIVEC, "__builtin_vec_st", void_ftype_opaque_long_pvoid, ALTIVEC_BUILTIN_VEC_ST); def_builtin (MASK_ALTIVEC, "__builtin_vec_ste", void_ftype_opaque_long_pvoid, ALTIVEC_BUILTIN_VEC_STE); def_builtin (MASK_ALTIVEC, "__builtin_vec_stl", void_ftype_opaque_long_pvoid, ALTIVEC_BUILTIN_VEC_STL); def_builtin (MASK_ALTIVEC, "__builtin_vec_stvewx", void_ftype_opaque_long_pvoid, ALTIVEC_BUILTIN_VEC_STVEWX); def_builtin (MASK_ALTIVEC, "__builtin_vec_stvebx", void_ftype_opaque_long_pvoid, ALTIVEC_BUILTIN_VEC_STVEBX); def_builtin (MASK_ALTIVEC, "__builtin_vec_stvehx", void_ftype_opaque_long_pvoid, ALTIVEC_BUILTIN_VEC_STVEHX); if (rs6000_cpu == PROCESSOR_CELL) { def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvlx", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVLX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvlxl", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVLXL); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvrx", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVRX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_lvrxl", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_LVRXL); def_builtin (MASK_ALTIVEC, "__builtin_vec_lvlx", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LVLX); def_builtin (MASK_ALTIVEC, "__builtin_vec_lvlxl", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LVLXL); def_builtin (MASK_ALTIVEC, "__builtin_vec_lvrx", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LVRX); def_builtin (MASK_ALTIVEC, "__builtin_vec_lvrxl", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_VEC_LVRXL); def_builtin (MASK_ALTIVEC, "__builtin_altivec_stvlx", void_ftype_v16qi_long_pvoid, ALTIVEC_BUILTIN_STVLX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_stvlxl", void_ftype_v16qi_long_pvoid, ALTIVEC_BUILTIN_STVLXL); def_builtin (MASK_ALTIVEC, "__builtin_altivec_stvrx", void_ftype_v16qi_long_pvoid, ALTIVEC_BUILTIN_STVRX); def_builtin (MASK_ALTIVEC, "__builtin_altivec_stvrxl", void_ftype_v16qi_long_pvoid, ALTIVEC_BUILTIN_STVRXL); def_builtin (MASK_ALTIVEC, "__builtin_vec_stvlx", void_ftype_v16qi_long_pvoid, ALTIVEC_BUILTIN_VEC_STVLX); def_builtin (MASK_ALTIVEC, "__builtin_vec_stvlxl", void_ftype_v16qi_long_pvoid, ALTIVEC_BUILTIN_VEC_STVLXL); def_builtin (MASK_ALTIVEC, "__builtin_vec_stvrx", void_ftype_v16qi_long_pvoid, ALTIVEC_BUILTIN_VEC_STVRX); def_builtin (MASK_ALTIVEC, "__builtin_vec_stvrxl", void_ftype_v16qi_long_pvoid, ALTIVEC_BUILTIN_VEC_STVRXL); } def_builtin (MASK_ALTIVEC, "__builtin_vec_step", int_ftype_opaque, ALTIVEC_BUILTIN_VEC_STEP); def_builtin (MASK_ALTIVEC, "__builtin_vec_splats", opaque_ftype_opaque, ALTIVEC_BUILTIN_VEC_SPLATS); def_builtin (MASK_ALTIVEC, "__builtin_vec_promote", opaque_ftype_opaque, ALTIVEC_BUILTIN_VEC_PROMOTE); def_builtin (MASK_ALTIVEC, "__builtin_vec_sld", opaque_ftype_opaque_opaque_int, ALTIVEC_BUILTIN_VEC_SLD); def_builtin (MASK_ALTIVEC, "__builtin_vec_splat", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_SPLAT); def_builtin (MASK_ALTIVEC, "__builtin_vec_extract", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_EXTRACT); def_builtin (MASK_ALTIVEC, "__builtin_vec_insert", opaque_ftype_opaque_opaque_int, ALTIVEC_BUILTIN_VEC_INSERT); def_builtin (MASK_ALTIVEC, "__builtin_vec_vspltw", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_VSPLTW); def_builtin (MASK_ALTIVEC, "__builtin_vec_vsplth", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_VSPLTH); def_builtin (MASK_ALTIVEC, "__builtin_vec_vspltb", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_VSPLTB); def_builtin (MASK_ALTIVEC, "__builtin_vec_ctf", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_CTF); def_builtin (MASK_ALTIVEC, "__builtin_vec_vcfsx", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_VCFSX); def_builtin (MASK_ALTIVEC, "__builtin_vec_vcfux", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_VCFUX); def_builtin (MASK_ALTIVEC, "__builtin_vec_cts", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_CTS); def_builtin (MASK_ALTIVEC, "__builtin_vec_ctu", opaque_ftype_opaque_int, ALTIVEC_BUILTIN_VEC_CTU); /* Add the DST variants. */ d = bdesc_dst; for (i = 0; i < ARRAY_SIZE (bdesc_dst); i++, d++) def_builtin (d->mask, d->name, void_ftype_pcvoid_int_int, d->code); /* Initialize the predicates. */ dp = bdesc_altivec_preds; for (i = 0; i < ARRAY_SIZE (bdesc_altivec_preds); i++, dp++) { enum machine_mode mode1; tree type; bool is_overloaded = ((dp->code >= ALTIVEC_BUILTIN_OVERLOADED_FIRST && dp->code <= ALTIVEC_BUILTIN_OVERLOADED_LAST) || (dp->code >= VSX_BUILTIN_OVERLOADED_FIRST && dp->code <= VSX_BUILTIN_OVERLOADED_LAST)); if (is_overloaded) mode1 = VOIDmode; else mode1 = insn_data[dp->icode].operand[1].mode; switch (mode1) { case VOIDmode: type = int_ftype_int_opaque_opaque; break; case V4SImode: type = int_ftype_int_v4si_v4si; break; case V8HImode: type = int_ftype_int_v8hi_v8hi; break; case V16QImode: type = int_ftype_int_v16qi_v16qi; break; case V4SFmode: type = int_ftype_int_v4sf_v4sf; break; case V2DFmode: type = int_ftype_int_v2df_v2df; break; default: gcc_unreachable (); } def_builtin (dp->mask, dp->name, type, dp->code); } /* Initialize the abs* operators. */ d = bdesc_abs; for (i = 0; i < ARRAY_SIZE (bdesc_abs); i++, d++) { enum machine_mode mode0; tree type; mode0 = insn_data[d->icode].operand[0].mode; switch (mode0) { case V4SImode: type = v4si_ftype_v4si; break; case V8HImode: type = v8hi_ftype_v8hi; break; case V16QImode: type = v16qi_ftype_v16qi; break; case V4SFmode: type = v4sf_ftype_v4sf; break; case V2DFmode: type = v2df_ftype_v2df; break; default: gcc_unreachable (); } def_builtin (d->mask, d->name, type, d->code); } if (TARGET_ALTIVEC) { tree decl; /* Initialize target builtin that implements targetm.vectorize.builtin_mask_for_load. */ decl = add_builtin_function ("__builtin_altivec_mask_for_load", v16qi_ftype_long_pcvoid, ALTIVEC_BUILTIN_MASK_FOR_LOAD, BUILT_IN_MD, NULL, NULL_TREE); TREE_READONLY (decl) = 1; /* Record the decl. Will be used by rs6000_builtin_mask_for_load. */ altivec_builtin_mask_for_load = decl; } /* Access to the vec_init patterns. */ ftype = build_function_type_list (V4SI_type_node, integer_type_node, integer_type_node, integer_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_init_v4si", ftype, ALTIVEC_BUILTIN_VEC_INIT_V4SI); ftype = build_function_type_list (V8HI_type_node, short_integer_type_node, short_integer_type_node, short_integer_type_node, short_integer_type_node, short_integer_type_node, short_integer_type_node, short_integer_type_node, short_integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_init_v8hi", ftype, ALTIVEC_BUILTIN_VEC_INIT_V8HI); ftype = build_function_type_list (V16QI_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, char_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_init_v16qi", ftype, ALTIVEC_BUILTIN_VEC_INIT_V16QI); ftype = build_function_type_list (V4SF_type_node, float_type_node, float_type_node, float_type_node, float_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_init_v4sf", ftype, ALTIVEC_BUILTIN_VEC_INIT_V4SF); if (TARGET_VSX) { ftype = build_function_type_list (V2DF_type_node, double_type_node, double_type_node, NULL_TREE); def_builtin (MASK_VSX, "__builtin_vec_init_v2df", ftype, VSX_BUILTIN_VEC_INIT_V2DF); ftype = build_function_type_list (V2DI_type_node, intDI_type_node, intDI_type_node, NULL_TREE); def_builtin (MASK_VSX, "__builtin_vec_init_v2di", ftype, VSX_BUILTIN_VEC_INIT_V2DI); } /* Access to the vec_set patterns. */ ftype = build_function_type_list (V4SI_type_node, V4SI_type_node, intSI_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_set_v4si", ftype, ALTIVEC_BUILTIN_VEC_SET_V4SI); ftype = build_function_type_list (V8HI_type_node, V8HI_type_node, intHI_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_set_v8hi", ftype, ALTIVEC_BUILTIN_VEC_SET_V8HI); ftype = build_function_type_list (V16QI_type_node, V16QI_type_node, intQI_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_set_v16qi", ftype, ALTIVEC_BUILTIN_VEC_SET_V16QI); ftype = build_function_type_list (V4SF_type_node, V4SF_type_node, float_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC|MASK_VSX, "__builtin_vec_set_v4sf", ftype, ALTIVEC_BUILTIN_VEC_SET_V4SF); if (TARGET_VSX) { ftype = build_function_type_list (V2DF_type_node, V2DF_type_node, double_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_VSX, "__builtin_vec_set_v2df", ftype, VSX_BUILTIN_VEC_SET_V2DF); ftype = build_function_type_list (V2DI_type_node, V2DI_type_node, intDI_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_VSX, "__builtin_vec_set_v2di", ftype, VSX_BUILTIN_VEC_SET_V2DI); } /* Access to the vec_extract patterns. */ ftype = build_function_type_list (intSI_type_node, V4SI_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_ext_v4si", ftype, ALTIVEC_BUILTIN_VEC_EXT_V4SI); ftype = build_function_type_list (intHI_type_node, V8HI_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_ext_v8hi", ftype, ALTIVEC_BUILTIN_VEC_EXT_V8HI); ftype = build_function_type_list (intQI_type_node, V16QI_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC, "__builtin_vec_ext_v16qi", ftype, ALTIVEC_BUILTIN_VEC_EXT_V16QI); ftype = build_function_type_list (float_type_node, V4SF_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_ALTIVEC|MASK_VSX, "__builtin_vec_ext_v4sf", ftype, ALTIVEC_BUILTIN_VEC_EXT_V4SF); if (TARGET_VSX) { ftype = build_function_type_list (double_type_node, V2DF_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_VSX, "__builtin_vec_ext_v2df", ftype, VSX_BUILTIN_VEC_EXT_V2DF); ftype = build_function_type_list (intDI_type_node, V2DI_type_node, integer_type_node, NULL_TREE); def_builtin (MASK_VSX, "__builtin_vec_ext_v2di", ftype, VSX_BUILTIN_VEC_EXT_V2DI); } } /* Hash function for builtin functions with up to 3 arguments and a return type. */ static unsigned builtin_hash_function (const void *hash_entry) { unsigned ret = 0; int i; const struct builtin_hash_struct *bh = (const struct builtin_hash_struct *) hash_entry; for (i = 0; i < 4; i++) { ret = (ret * (unsigned)MAX_MACHINE_MODE) + ((unsigned)bh->mode[i]); ret = (ret * 2) + bh->uns_p[i]; } return ret; } /* Compare builtin hash entries H1 and H2 for equivalence. */ static int builtin_hash_eq (const void *h1, const void *h2) { const struct builtin_hash_struct *p1 = (const struct builtin_hash_struct *) h1; const struct builtin_hash_struct *p2 = (const struct builtin_hash_struct *) h2; return ((p1->mode[0] == p2->mode[0]) && (p1->mode[1] == p2->mode[1]) && (p1->mode[2] == p2->mode[2]) && (p1->mode[3] == p2->mode[3]) && (p1->uns_p[0] == p2->uns_p[0]) && (p1->uns_p[1] == p2->uns_p[1]) && (p1->uns_p[2] == p2->uns_p[2]) && (p1->uns_p[3] == p2->uns_p[3])); } /* Map types for builtin functions with an explicit return type and up to 3 arguments. Functions with fewer than 3 arguments use VOIDmode as the type of the argument. */ static tree builtin_function_type (enum machine_mode mode_ret, enum machine_mode mode_arg0, enum machine_mode mode_arg1, enum machine_mode mode_arg2, enum rs6000_builtins builtin, const char *name) { struct builtin_hash_struct h; struct builtin_hash_struct *h2; void **found; int num_args = 3; int i; tree ret_type = NULL_TREE; tree arg_type[3] = { NULL_TREE, NULL_TREE, NULL_TREE }; tree args; /* Create builtin_hash_table. */ if (builtin_hash_table == NULL) builtin_hash_table = htab_create_ggc (1500, builtin_hash_function, builtin_hash_eq, NULL); h.type = NULL_TREE; h.mode[0] = mode_ret; h.mode[1] = mode_arg0; h.mode[2] = mode_arg1; h.mode[3] = mode_arg2; h.uns_p[0] = 0; h.uns_p[1] = 0; h.uns_p[2] = 0; h.uns_p[3] = 0; /* If the builtin is a type that produces unsigned results or takes unsigned arguments, and it is returned as a decl for the vectorizer (such as widening multiplies, permute), make sure the arguments and return value are type correct. */ switch (builtin) { /* unsigned 2 argument functions. */ case ALTIVEC_BUILTIN_VMULEUB_UNS: case ALTIVEC_BUILTIN_VMULEUH_UNS: case ALTIVEC_BUILTIN_VMULOUB_UNS: case ALTIVEC_BUILTIN_VMULOUH_UNS: h.uns_p[0] = 1; h.uns_p[1] = 1; h.uns_p[2] = 1; break; /* unsigned 3 argument functions. */ case ALTIVEC_BUILTIN_VPERM_16QI_UNS: case ALTIVEC_BUILTIN_VPERM_8HI_UNS: case ALTIVEC_BUILTIN_VPERM_4SI_UNS: case ALTIVEC_BUILTIN_VPERM_2DI_UNS: case ALTIVEC_BUILTIN_VSEL_16QI_UNS: case ALTIVEC_BUILTIN_VSEL_8HI_UNS: case ALTIVEC_BUILTIN_VSEL_4SI_UNS: case ALTIVEC_BUILTIN_VSEL_2DI_UNS: case VSX_BUILTIN_VPERM_16QI_UNS: case VSX_BUILTIN_VPERM_8HI_UNS: case VSX_BUILTIN_VPERM_4SI_UNS: case VSX_BUILTIN_VPERM_2DI_UNS: case VSX_BUILTIN_XXSEL_16QI_UNS: case VSX_BUILTIN_XXSEL_8HI_UNS: case VSX_BUILTIN_XXSEL_4SI_UNS: case VSX_BUILTIN_XXSEL_2DI_UNS: h.uns_p[0] = 1; h.uns_p[1] = 1; h.uns_p[2] = 1; h.uns_p[3] = 1; break; /* signed permute functions with unsigned char mask. */ case ALTIVEC_BUILTIN_VPERM_16QI: case ALTIVEC_BUILTIN_VPERM_8HI: case ALTIVEC_BUILTIN_VPERM_4SI: case ALTIVEC_BUILTIN_VPERM_4SF: case ALTIVEC_BUILTIN_VPERM_2DI: case ALTIVEC_BUILTIN_VPERM_2DF: case VSX_BUILTIN_VPERM_16QI: case VSX_BUILTIN_VPERM_8HI: case VSX_BUILTIN_VPERM_4SI: case VSX_BUILTIN_VPERM_4SF: case VSX_BUILTIN_VPERM_2DI: case VSX_BUILTIN_VPERM_2DF: h.uns_p[3] = 1; break; /* unsigned args, signed return. */ case VSX_BUILTIN_XVCVUXDDP_UNS: case VECTOR_BUILTIN_UNSFLOAT_V4SI_V4SF: h.uns_p[1] = 1; break; /* signed args, unsigned return. */ case VSX_BUILTIN_XVCVDPUXDS_UNS: case VECTOR_BUILTIN_FIXUNS_V4SF_V4SI: h.uns_p[0] = 1; break; default: break; } /* Figure out how many args are present. */ while (num_args > 0 && h.mode[num_args] == VOIDmode) num_args--; if (num_args == 0) fatal_error ("internal error: builtin function %s had no type", name); ret_type = builtin_mode_to_type[h.mode[0]][h.uns_p[0]]; if (!ret_type && h.uns_p[0]) ret_type = builtin_mode_to_type[h.mode[0]][0]; if (!ret_type) fatal_error ("internal error: builtin function %s had an unexpected " "return type %s", name, GET_MODE_NAME (h.mode[0])); for (i = 0; i < num_args; i++) { int m = (int) h.mode[i+1]; int uns_p = h.uns_p[i+1]; arg_type[i] = builtin_mode_to_type[m][uns_p]; if (!arg_type[i] && uns_p) arg_type[i] = builtin_mode_to_type[m][0]; if (!arg_type[i]) fatal_error ("internal error: builtin function %s, argument %d " "had unexpected argument type %s", name, i, GET_MODE_NAME (m)); } found = htab_find_slot (builtin_hash_table, &h, INSERT); if (*found == NULL) { h2 = GGC_NEW (struct builtin_hash_struct); *h2 = h; *found = (void *)h2; args = void_list_node; for (i = num_args - 1; i >= 0; i--) args = tree_cons (NULL_TREE, arg_type[i], args); h2->type = build_function_type (ret_type, args); } return ((struct builtin_hash_struct *)(*found))->type; } static void rs6000_common_init_builtins (void) { const struct builtin_description *d; size_t i; tree opaque_ftype_opaque = NULL_TREE; tree opaque_ftype_opaque_opaque = NULL_TREE; tree opaque_ftype_opaque_opaque_opaque = NULL_TREE; tree v2si_ftype_qi = NULL_TREE; tree v2si_ftype_v2si_qi = NULL_TREE; tree v2si_ftype_int_qi = NULL_TREE; if (!TARGET_PAIRED_FLOAT) { builtin_mode_to_type[V2SImode][0] = opaque_V2SI_type_node; builtin_mode_to_type[V2SFmode][0] = opaque_V2SF_type_node; } /* Add the ternary operators. */ d = bdesc_3arg; for (i = 0; i < ARRAY_SIZE (bdesc_3arg); i++, d++) { tree type; int mask = d->mask; if ((mask != 0 && (mask & target_flags) == 0) || (mask == 0 && !TARGET_PAIRED_FLOAT)) continue; if ((d->code >= ALTIVEC_BUILTIN_OVERLOADED_FIRST && d->code <= ALTIVEC_BUILTIN_OVERLOADED_LAST) || (d->code >= VSX_BUILTIN_OVERLOADED_FIRST && d->code <= VSX_BUILTIN_OVERLOADED_LAST)) { if (! (type = opaque_ftype_opaque_opaque_opaque)) type = opaque_ftype_opaque_opaque_opaque = build_function_type_list (opaque_V4SI_type_node, opaque_V4SI_type_node, opaque_V4SI_type_node, opaque_V4SI_type_node, NULL_TREE); } else { enum insn_code icode = d->icode; if (d->name == 0 || icode == CODE_FOR_nothing) continue; type = builtin_function_type (insn_data[icode].operand[0].mode, insn_data[icode].operand[1].mode, insn_data[icode].operand[2].mode, insn_data[icode].operand[3].mode, d->code, d->name); } def_builtin (d->mask, d->name, type, d->code); } /* Add the binary operators. */ d = bdesc_2arg; for (i = 0; i < ARRAY_SIZE (bdesc_2arg); i++, d++) { enum machine_mode mode0, mode1, mode2; tree type; int mask = d->mask; if ((mask != 0 && (mask & target_flags) == 0) || (mask == 0 && !TARGET_PAIRED_FLOAT)) continue; if ((d->code >= ALTIVEC_BUILTIN_OVERLOADED_FIRST && d->code <= ALTIVEC_BUILTIN_OVERLOADED_LAST) || (d->code >= VSX_BUILTIN_OVERLOADED_FIRST && d->code <= VSX_BUILTIN_OVERLOADED_LAST)) { if (! (type = opaque_ftype_opaque_opaque)) type = opaque_ftype_opaque_opaque = build_function_type_list (opaque_V4SI_type_node, opaque_V4SI_type_node, opaque_V4SI_type_node, NULL_TREE); } else { enum insn_code icode = d->icode; if (d->name == 0 || icode == CODE_FOR_nothing) continue; mode0 = insn_data[icode].operand[0].mode; mode1 = insn_data[icode].operand[1].mode; mode2 = insn_data[icode].operand[2].mode; if (mode0 == V2SImode && mode1 == V2SImode && mode2 == QImode) { if (! (type = v2si_ftype_v2si_qi)) type = v2si_ftype_v2si_qi = build_function_type_list (opaque_V2SI_type_node, opaque_V2SI_type_node, char_type_node, NULL_TREE); } else if (mode0 == V2SImode && GET_MODE_CLASS (mode1) == MODE_INT && mode2 == QImode) { if (! (type = v2si_ftype_int_qi)) type = v2si_ftype_int_qi = build_function_type_list (opaque_V2SI_type_node, integer_type_node, char_type_node, NULL_TREE); } else type = builtin_function_type (mode0, mode1, mode2, VOIDmode, d->code, d->name); } def_builtin (d->mask, d->name, type, d->code); } /* Add the simple unary operators. */ d = (struct builtin_description *) bdesc_1arg; for (i = 0; i < ARRAY_SIZE (bdesc_1arg); i++, d++) { enum machine_mode mode0, mode1; tree type; int mask = d->mask; if ((mask != 0 && (mask & target_flags) == 0) || (mask == 0 && !TARGET_PAIRED_FLOAT)) continue; if ((d->code >= ALTIVEC_BUILTIN_OVERLOADED_FIRST && d->code <= ALTIVEC_BUILTIN_OVERLOADED_LAST) || (d->code >= VSX_BUILTIN_OVERLOADED_FIRST && d->code <= VSX_BUILTIN_OVERLOADED_LAST)) { if (! (type = opaque_ftype_opaque)) type = opaque_ftype_opaque = build_function_type_list (opaque_V4SI_type_node, opaque_V4SI_type_node, NULL_TREE); } else { enum insn_code icode = d->icode; if (d->name == 0 || icode == CODE_FOR_nothing) continue; mode0 = insn_data[icode].operand[0].mode; mode1 = insn_data[icode].operand[1].mode; if (mode0 == V2SImode && mode1 == QImode) { if (! (type = v2si_ftype_qi)) type = v2si_ftype_qi = build_function_type_list (opaque_V2SI_type_node, char_type_node, NULL_TREE); } else type = builtin_function_type (mode0, mode1, VOIDmode, VOIDmode, d->code, d->name); } def_builtin (d->mask, d->name, type, d->code); } } static void rs6000_init_libfuncs (void) { if (DEFAULT_ABI != ABI_V4 && TARGET_XCOFF && !TARGET_POWER2 && !TARGET_POWERPC) { /* AIX library routines for float->int conversion. */ set_conv_libfunc (sfix_optab, SImode, DFmode, "__itrunc"); set_conv_libfunc (ufix_optab, SImode, DFmode, "__uitrunc"); set_conv_libfunc (sfix_optab, SImode, TFmode, "_qitrunc"); set_conv_libfunc (ufix_optab, SImode, TFmode, "_quitrunc"); } if (!TARGET_IEEEQUAD) /* AIX/Darwin/64-bit Linux quad floating point routines. */ if (!TARGET_XL_COMPAT) { set_optab_libfunc (add_optab, TFmode, "__gcc_qadd"); set_optab_libfunc (sub_optab, TFmode, "__gcc_qsub"); set_optab_libfunc (smul_optab, TFmode, "__gcc_qmul"); set_optab_libfunc (sdiv_optab, TFmode, "__gcc_qdiv"); if (!(TARGET_HARD_FLOAT && (TARGET_FPRS || TARGET_E500_DOUBLE))) { set_optab_libfunc (neg_optab, TFmode, "__gcc_qneg"); set_optab_libfunc (eq_optab, TFmode, "__gcc_qeq"); set_optab_libfunc (ne_optab, TFmode, "__gcc_qne"); set_optab_libfunc (gt_optab, TFmode, "__gcc_qgt"); set_optab_libfunc (ge_optab, TFmode, "__gcc_qge"); set_optab_libfunc (lt_optab, TFmode, "__gcc_qlt"); set_optab_libfunc (le_optab, TFmode, "__gcc_qle"); set_conv_libfunc (sext_optab, TFmode, SFmode, "__gcc_stoq"); set_conv_libfunc (sext_optab, TFmode, DFmode, "__gcc_dtoq"); set_conv_libfunc (trunc_optab, SFmode, TFmode, "__gcc_qtos"); set_conv_libfunc (trunc_optab, DFmode, TFmode, "__gcc_qtod"); set_conv_libfunc (sfix_optab, SImode, TFmode, "__gcc_qtoi"); set_conv_libfunc (ufix_optab, SImode, TFmode, "__gcc_qtou"); set_conv_libfunc (sfloat_optab, TFmode, SImode, "__gcc_itoq"); set_conv_libfunc (ufloat_optab, TFmode, SImode, "__gcc_utoq"); } if (!(TARGET_HARD_FLOAT && TARGET_FPRS)) set_optab_libfunc (unord_optab, TFmode, "__gcc_qunord"); } else { set_optab_libfunc (add_optab, TFmode, "_xlqadd"); set_optab_libfunc (sub_optab, TFmode, "_xlqsub"); set_optab_libfunc (smul_optab, TFmode, "_xlqmul"); set_optab_libfunc (sdiv_optab, TFmode, "_xlqdiv"); } else { /* 32-bit SVR4 quad floating point routines. */ set_optab_libfunc (add_optab, TFmode, "_q_add"); set_optab_libfunc (sub_optab, TFmode, "_q_sub"); set_optab_libfunc (neg_optab, TFmode, "_q_neg"); set_optab_libfunc (smul_optab, TFmode, "_q_mul"); set_optab_libfunc (sdiv_optab, TFmode, "_q_div"); if (TARGET_PPC_GPOPT || TARGET_POWER2) set_optab_libfunc (sqrt_optab, TFmode, "_q_sqrt"); set_optab_libfunc (eq_optab, TFmode, "_q_feq"); set_optab_libfunc (ne_optab, TFmode, "_q_fne"); set_optab_libfunc (gt_optab, TFmode, "_q_fgt"); set_optab_libfunc (ge_optab, TFmode, "_q_fge"); set_optab_libfunc (lt_optab, TFmode, "_q_flt"); set_optab_libfunc (le_optab, TFmode, "_q_fle"); set_conv_libfunc (sext_optab, TFmode, SFmode, "_q_stoq"); set_conv_libfunc (sext_optab, TFmode, DFmode, "_q_dtoq"); set_conv_libfunc (trunc_optab, SFmode, TFmode, "_q_qtos"); set_conv_libfunc (trunc_optab, DFmode, TFmode, "_q_qtod"); set_conv_libfunc (sfix_optab, SImode, TFmode, "_q_qtoi"); set_conv_libfunc (ufix_optab, SImode, TFmode, "_q_qtou"); set_conv_libfunc (sfloat_optab, TFmode, SImode, "_q_itoq"); set_conv_libfunc (ufloat_optab, TFmode, SImode, "_q_utoq"); } } /* Expand a block clear operation, and return 1 if successful. Return 0 if we should let the compiler generate normal code. operands[0] is the destination operands[1] is the length operands[3] is the alignment */ int expand_block_clear (rtx operands[]) { rtx orig_dest = operands[0]; rtx bytes_rtx = operands[1]; rtx align_rtx = operands[3]; bool constp = (GET_CODE (bytes_rtx) == CONST_INT); HOST_WIDE_INT align; HOST_WIDE_INT bytes; int offset; int clear_bytes; int clear_step; /* If this is not a fixed size move, just call memcpy */ if (! constp) return 0; /* This must be a fixed size alignment */ gcc_assert (GET_CODE (align_rtx) == CONST_INT); align = INTVAL (align_rtx) * BITS_PER_UNIT; /* Anything to clear? */ bytes = INTVAL (bytes_rtx); if (bytes <= 0) return 1; /* Use the builtin memset after a point, to avoid huge code bloat. When optimize_size, avoid any significant code bloat; calling memset is about 4 instructions, so allow for one instruction to load zero and three to do clearing. */ if (TARGET_ALTIVEC && align >= 128) clear_step = 16; else if (TARGET_POWERPC64 && align >= 32) clear_step = 8; else if (TARGET_SPE && align >= 64) clear_step = 8; else clear_step = 4; if (optimize_size && bytes > 3 * clear_step) return 0; if (! optimize_size && bytes > 8 * clear_step) return 0; for (offset = 0; bytes > 0; offset += clear_bytes, bytes -= clear_bytes) { enum machine_mode mode = BLKmode; rtx dest; if (bytes >= 16 && TARGET_ALTIVEC && align >= 128) { clear_bytes = 16; mode = V4SImode; } else if (bytes >= 8 && TARGET_SPE && align >= 64) { clear_bytes = 8; mode = V2SImode; } else if (bytes >= 8 && TARGET_POWERPC64 /* 64-bit loads and stores require word-aligned displacements. */ && (align >= 64 || (!STRICT_ALIGNMENT && align >= 32))) { clear_bytes = 8; mode = DImode; } else if (bytes >= 4 && (align >= 32 || !STRICT_ALIGNMENT)) { /* move 4 bytes */ clear_bytes = 4; mode = SImode; } else if (bytes >= 2 && (align >= 16 || !STRICT_ALIGNMENT)) { /* move 2 bytes */ clear_bytes = 2; mode = HImode; } else /* move 1 byte at a time */ { clear_bytes = 1; mode = QImode; } dest = adjust_address (orig_dest, mode, offset); emit_move_insn (dest, CONST0_RTX (mode)); } return 1; } /* Expand a block move operation, and return 1 if successful. Return 0 if we should let the compiler generate normal code. operands[0] is the destination operands[1] is the source operands[2] is the length operands[3] is the alignment */ #define MAX_MOVE_REG 4 int expand_block_move (rtx operands[]) { rtx orig_dest = operands[0]; rtx orig_src = operands[1]; rtx bytes_rtx = operands[2]; rtx align_rtx = operands[3]; int constp = (GET_CODE (bytes_rtx) == CONST_INT); int align; int bytes; int offset; int move_bytes; rtx stores[MAX_MOVE_REG]; int num_reg = 0; /* If this is not a fixed size move, just call memcpy */ if (! constp) return 0; /* This must be a fixed size alignment */ gcc_assert (GET_CODE (align_rtx) == CONST_INT); align = INTVAL (align_rtx) * BITS_PER_UNIT; /* Anything to move? */ bytes = INTVAL (bytes_rtx); if (bytes <= 0) return 1; /* store_one_arg depends on expand_block_move to handle at least the size of reg_parm_stack_space. */ if (bytes > (TARGET_POWERPC64 ? 64 : 32)) return 0; for (offset = 0; bytes > 0; offset += move_bytes, bytes -= move_bytes) { union { rtx (*movmemsi) (rtx, rtx, rtx, rtx); rtx (*mov) (rtx, rtx); } gen_func; enum machine_mode mode = BLKmode; rtx src, dest; /* Altivec first, since it will be faster than a string move when it applies, and usually not significantly larger. */ if (TARGET_ALTIVEC && bytes >= 16 && align >= 128) { move_bytes = 16; mode = V4SImode; gen_func.mov = gen_movv4si; } else if (TARGET_SPE && bytes >= 8 && align >= 64) { move_bytes = 8; mode = V2SImode; gen_func.mov = gen_movv2si; } else if (TARGET_STRING && bytes > 24 /* move up to 32 bytes at a time */ && ! fixed_regs[5] && ! fixed_regs[6] && ! fixed_regs[7] && ! fixed_regs[8] && ! fixed_regs[9] && ! fixed_regs[10] && ! fixed_regs[11] && ! fixed_regs[12]) { move_bytes = (bytes > 32) ? 32 : bytes; gen_func.movmemsi = gen_movmemsi_8reg; } else if (TARGET_STRING && bytes > 16 /* move up to 24 bytes at a time */ && ! fixed_regs[5] && ! fixed_regs[6] && ! fixed_regs[7] && ! fixed_regs[8] && ! fixed_regs[9] && ! fixed_regs[10]) { move_bytes = (bytes > 24) ? 24 : bytes; gen_func.movmemsi = gen_movmemsi_6reg; } else if (TARGET_STRING && bytes > 8 /* move up to 16 bytes at a time */ && ! fixed_regs[5] && ! fixed_regs[6] && ! fixed_regs[7] && ! fixed_regs[8]) { move_bytes = (bytes > 16) ? 16 : bytes; gen_func.movmemsi = gen_movmemsi_4reg; } else if (bytes >= 8 && TARGET_POWERPC64 /* 64-bit loads and stores require word-aligned displacements. */ && (align >= 64 || (!STRICT_ALIGNMENT && align >= 32))) { move_bytes = 8; mode = DImode; gen_func.mov = gen_movdi; } else if (TARGET_STRING && bytes > 4 && !TARGET_POWERPC64) { /* move up to 8 bytes at a time */ move_bytes = (bytes > 8) ? 8 : bytes; gen_func.movmemsi = gen_movmemsi_2reg; } else if (bytes >= 4 && (align >= 32 || !STRICT_ALIGNMENT)) { /* move 4 bytes */ move_bytes = 4; mode = SImode; gen_func.mov = gen_movsi; } else if (bytes >= 2 && (align >= 16 || !STRICT_ALIGNMENT)) { /* move 2 bytes */ move_bytes = 2; mode = HImode; gen_func.mov = gen_movhi; } else if (TARGET_STRING && bytes > 1) { /* move up to 4 bytes at a time */ move_bytes = (bytes > 4) ? 4 : bytes; gen_func.movmemsi = gen_movmemsi_1reg; } else /* move 1 byte at a time */ { move_bytes = 1; mode = QImode; gen_func.mov = gen_movqi; } src = adjust_address (orig_src, mode, offset); dest = adjust_address (orig_dest, mode, offset); if (mode != BLKmode) { rtx tmp_reg = gen_reg_rtx (mode); emit_insn ((*gen_func.mov) (tmp_reg, src)); stores[num_reg++] = (*gen_func.mov) (dest, tmp_reg); } if (mode == BLKmode || num_reg >= MAX_MOVE_REG || bytes == move_bytes) { int i; for (i = 0; i < num_reg; i++) emit_insn (stores[i]); num_reg = 0; } if (mode == BLKmode) { /* Move the address into scratch registers. The movmemsi patterns require zero offset. */ if (!REG_P (XEXP (src, 0))) { rtx src_reg = copy_addr_to_reg (XEXP (src, 0)); src = replace_equiv_address (src, src_reg); } set_mem_size (src, GEN_INT (move_bytes)); if (!REG_P (XEXP (dest, 0))) { rtx dest_reg = copy_addr_to_reg (XEXP (dest, 0)); dest = replace_equiv_address (dest, dest_reg); } set_mem_size (dest, GEN_INT (move_bytes)); emit_insn ((*gen_func.movmemsi) (dest, src, GEN_INT (move_bytes & 31), align_rtx)); } } return 1; } /* Return a string to perform a load_multiple operation. operands[0] is the vector. operands[1] is the source address. operands[2] is the first destination register. */ const char * rs6000_output_load_multiple (rtx operands[3]) { /* We have to handle the case where the pseudo used to contain the address is assigned to one of the output registers. */ int i, j; int words = XVECLEN (operands[0], 0); rtx xop[10]; if (XVECLEN (operands[0], 0) == 1) return "{l|lwz} %2,0(%1)"; for (i = 0; i < words; i++) if (refers_to_regno_p (REGNO (operands[2]) + i, REGNO (operands[2]) + i + 1, operands[1], 0)) { if (i == words-1) { xop[0] = GEN_INT (4 * (words-1)); xop[1] = operands[1]; xop[2] = operands[2]; output_asm_insn ("{lsi|lswi} %2,%1,%0\n\t{l|lwz} %1,%0(%1)", xop); return ""; } else if (i == 0) { xop[0] = GEN_INT (4 * (words-1)); xop[1] = operands[1]; xop[2] = gen_rtx_REG (SImode, REGNO (operands[2]) + 1); output_asm_insn ("{cal %1,4(%1)|addi %1,%1,4}\n\t{lsi|lswi} %2,%1,%0\n\t{l|lwz} %1,-4(%1)", xop); return ""; } else { for (j = 0; j < words; j++) if (j != i) { xop[0] = GEN_INT (j * 4); xop[1] = operands[1]; xop[2] = gen_rtx_REG (SImode, REGNO (operands[2]) + j); output_asm_insn ("{l|lwz} %2,%0(%1)", xop); } xop[0] = GEN_INT (i * 4); xop[1] = operands[1]; output_asm_insn ("{l|lwz} %1,%0(%1)", xop); return ""; } } return "{lsi|lswi} %2,%1,%N0"; } /* A validation routine: say whether CODE, a condition code, and MODE match. The other alternatives either don't make sense or should never be generated. */ void validate_condition_mode (enum rtx_code code, enum machine_mode mode) { gcc_assert ((GET_RTX_CLASS (code) == RTX_COMPARE || GET_RTX_CLASS (code) == RTX_COMM_COMPARE) && GET_MODE_CLASS (mode) == MODE_CC); /* These don't make sense. */ gcc_assert ((code != GT && code != LT && code != GE && code != LE) || mode != CCUNSmode); gcc_assert ((code != GTU && code != LTU && code != GEU && code != LEU) || mode == CCUNSmode); gcc_assert (mode == CCFPmode || (code != ORDERED && code != UNORDERED && code != UNEQ && code != LTGT && code != UNGT && code != UNLT && code != UNGE && code != UNLE)); /* These should never be generated except for flag_finite_math_only. */ gcc_assert (mode != CCFPmode || flag_finite_math_only || (code != LE && code != GE && code != UNEQ && code != LTGT && code != UNGT && code != UNLT)); /* These are invalid; the information is not there. */ gcc_assert (mode != CCEQmode || code == EQ || code == NE); } /* Return 1 if ANDOP is a mask that has no bits on that are not in the mask required to convert the result of a rotate insn into a shift left insn of SHIFTOP bits. Both are known to be SImode CONST_INT. */ int includes_lshift_p (rtx shiftop, rtx andop) { unsigned HOST_WIDE_INT shift_mask = ~(unsigned HOST_WIDE_INT) 0; shift_mask <<= INTVAL (shiftop); return (INTVAL (andop) & 0xffffffff & ~shift_mask) == 0; } /* Similar, but for right shift. */ int includes_rshift_p (rtx shiftop, rtx andop) { unsigned HOST_WIDE_INT shift_mask = ~(unsigned HOST_WIDE_INT) 0; shift_mask >>= INTVAL (shiftop); return (INTVAL (andop) & 0xffffffff & ~shift_mask) == 0; } /* Return 1 if ANDOP is a mask suitable for use with an rldic insn to perform a left shift. It must have exactly SHIFTOP least significant 0's, then one or more 1's, then zero or more 0's. */ int includes_rldic_lshift_p (rtx shiftop, rtx andop) { if (GET_CODE (andop) == CONST_INT) { HOST_WIDE_INT c, lsb, shift_mask; c = INTVAL (andop); if (c == 0 || c == ~0) return 0; shift_mask = ~0; shift_mask <<= INTVAL (shiftop); /* Find the least significant one bit. */ lsb = c & -c; /* It must coincide with the LSB of the shift mask. */ if (-lsb != shift_mask) return 0; /* Invert to look for the next transition (if any). */ c = ~c; /* Remove the low group of ones (originally low group of zeros). */ c &= -lsb; /* Again find the lsb, and check we have all 1's above. */ lsb = c & -c; return c == -lsb; } else if (GET_CODE (andop) == CONST_DOUBLE && (GET_MODE (andop) == VOIDmode || GET_MODE (andop) == DImode)) { HOST_WIDE_INT low, high, lsb; HOST_WIDE_INT shift_mask_low, shift_mask_high; low = CONST_DOUBLE_LOW (andop); if (HOST_BITS_PER_WIDE_INT < 64) high = CONST_DOUBLE_HIGH (andop); if ((low == 0 && (HOST_BITS_PER_WIDE_INT >= 64 || high == 0)) || (low == ~0 && (HOST_BITS_PER_WIDE_INT >= 64 || high == ~0))) return 0; if (HOST_BITS_PER_WIDE_INT < 64 && low == 0) { shift_mask_high = ~0; if (INTVAL (shiftop) > 32) shift_mask_high <<= INTVAL (shiftop) - 32; lsb = high & -high; if (-lsb != shift_mask_high || INTVAL (shiftop) < 32) return 0; high = ~high; high &= -lsb; lsb = high & -high; return high == -lsb; } shift_mask_low = ~0; shift_mask_low <<= INTVAL (shiftop); lsb = low & -low; if (-lsb != shift_mask_low) return 0; if (HOST_BITS_PER_WIDE_INT < 64) high = ~high; low = ~low; low &= -lsb; if (HOST_BITS_PER_WIDE_INT < 64 && low == 0) { lsb = high & -high; return high == -lsb; } lsb = low & -low; return low == -lsb && (HOST_BITS_PER_WIDE_INT >= 64 || high == ~0); } else return 0; } /* Return 1 if ANDOP is a mask suitable for use with an rldicr insn to perform a left shift. It must have SHIFTOP or more least significant 0's, with the remainder of the word 1's. */ int includes_rldicr_lshift_p (rtx shiftop, rtx andop) { if (GET_CODE (andop) == CONST_INT) { HOST_WIDE_INT c, lsb, shift_mask; shift_mask = ~0; shift_mask <<= INTVAL (shiftop); c = INTVAL (andop); /* Find the least significant one bit. */ lsb = c & -c; /* It must be covered by the shift mask. This test also rejects c == 0. */ if ((lsb & shift_mask) == 0) return 0; /* Check we have all 1's above the transition, and reject all 1's. */ return c == -lsb && lsb != 1; } else if (GET_CODE (andop) == CONST_DOUBLE && (GET_MODE (andop) == VOIDmode || GET_MODE (andop) == DImode)) { HOST_WIDE_INT low, lsb, shift_mask_low; low = CONST_DOUBLE_LOW (andop); if (HOST_BITS_PER_WIDE_INT < 64) { HOST_WIDE_INT high, shift_mask_high; high = CONST_DOUBLE_HIGH (andop); if (low == 0) { shift_mask_high = ~0; if (INTVAL (shiftop) > 32) shift_mask_high <<= INTVAL (shiftop) - 32; lsb = high & -high; if ((lsb & shift_mask_high) == 0) return 0; return high == -lsb; } if (high != ~0) return 0; } shift_mask_low = ~0; shift_mask_low <<= INTVAL (shiftop); lsb = low & -low; if ((lsb & shift_mask_low) == 0) return 0; return low == -lsb && lsb != 1; } else return 0; } /* Return 1 if operands will generate a valid arguments to rlwimi instruction for insert with right shift in 64-bit mode. The mask may not start on the first bit or stop on the last bit because wrap-around effects of instruction do not correspond to semantics of RTL insn. */ int insvdi_rshift_rlwimi_p (rtx sizeop, rtx startop, rtx shiftop) { if (INTVAL (startop) > 32 && INTVAL (startop) < 64 && INTVAL (sizeop) > 1 && INTVAL (sizeop) + INTVAL (startop) < 64 && INTVAL (shiftop) > 0 && INTVAL (sizeop) + INTVAL (shiftop) < 32 && (64 - (INTVAL (shiftop) & 63)) >= INTVAL (sizeop)) return 1; return 0; } /* Return 1 if REGNO (reg1) == REGNO (reg2) - 1 making them candidates for lfq and stfq insns iff the registers are hard registers. */ int registers_ok_for_quad_peep (rtx reg1, rtx reg2) { /* We might have been passed a SUBREG. */ if (GET_CODE (reg1) != REG || GET_CODE (reg2) != REG) return 0; /* We might have been passed non floating point registers. */ if (!FP_REGNO_P (REGNO (reg1)) || !FP_REGNO_P (REGNO (reg2))) return 0; return (REGNO (reg1) == REGNO (reg2) - 1); } /* Return 1 if addr1 and addr2 are suitable for lfq or stfq insn. addr1 and addr2 must be in consecutive memory locations (addr2 == addr1 + 8). */ int mems_ok_for_quad_peep (rtx mem1, rtx mem2) { rtx addr1, addr2; unsigned int reg1, reg2; int offset1, offset2; /* The mems cannot be volatile. */ if (MEM_VOLATILE_P (mem1) || MEM_VOLATILE_P (mem2)) return 0; addr1 = XEXP (mem1, 0); addr2 = XEXP (mem2, 0); /* Extract an offset (if used) from the first addr. */ if (GET_CODE (addr1) == PLUS) { /* If not a REG, return zero. */ if (GET_CODE (XEXP (addr1, 0)) != REG) return 0; else { reg1 = REGNO (XEXP (addr1, 0)); /* The offset must be constant! */ if (GET_CODE (XEXP (addr1, 1)) != CONST_INT) return 0; offset1 = INTVAL (XEXP (addr1, 1)); } } else if (GET_CODE (addr1) != REG) return 0; else { reg1 = REGNO (addr1); /* This was a simple (mem (reg)) expression. Offset is 0. */ offset1 = 0; } /* And now for the second addr. */ if (GET_CODE (addr2) == PLUS) { /* If not a REG, return zero. */ if (GET_CODE (XEXP (addr2, 0)) != REG) return 0; else { reg2 = REGNO (XEXP (addr2, 0)); /* The offset must be constant. */ if (GET_CODE (XEXP (addr2, 1)) != CONST_INT) return 0; offset2 = INTVAL (XEXP (addr2, 1)); } } else if (GET_CODE (addr2) != REG) return 0; else { reg2 = REGNO (addr2); /* This was a simple (mem (reg)) expression. Offset is 0. */ offset2 = 0; } /* Both of these must have the same base register. */ if (reg1 != reg2) return 0; /* The offset for the second addr must be 8 more than the first addr. */ if (offset2 != offset1 + 8) return 0; /* All the tests passed. addr1 and addr2 are valid for lfq or stfq instructions. */ return 1; } rtx rs6000_secondary_memory_needed_rtx (enum machine_mode mode) { static bool eliminated = false; rtx ret; if (mode != SDmode) ret = assign_stack_local (mode, GET_MODE_SIZE (mode), 0); else { rtx mem = cfun->machine->sdmode_stack_slot; gcc_assert (mem != NULL_RTX); if (!eliminated) { mem = eliminate_regs (mem, VOIDmode, NULL_RTX); cfun->machine->sdmode_stack_slot = mem; eliminated = true; } ret = mem; } if (TARGET_DEBUG_ADDR) { fprintf (stderr, "\nrs6000_secondary_memory_needed_rtx, mode %s, rtx:\n", GET_MODE_NAME (mode)); if (!ret) fprintf (stderr, "\tNULL_RTX\n"); else debug_rtx (ret); } return ret; } static tree rs6000_check_sdmode (tree *tp, int *walk_subtrees, void *data ATTRIBUTE_UNUSED) { /* Don't walk into types. */ if (*tp == NULL_TREE || *tp == error_mark_node || TYPE_P (*tp)) { *walk_subtrees = 0; return NULL_TREE; } switch (TREE_CODE (*tp)) { case VAR_DECL: case PARM_DECL: case FIELD_DECL: case RESULT_DECL: case SSA_NAME: case REAL_CST: case INDIRECT_REF: case ALIGN_INDIRECT_REF: case MISALIGNED_INDIRECT_REF: case VIEW_CONVERT_EXPR: if (TYPE_MODE (TREE_TYPE (*tp)) == SDmode) return *tp; break; default: break; } return NULL_TREE; } enum reload_reg_type { GPR_REGISTER_TYPE, VECTOR_REGISTER_TYPE, OTHER_REGISTER_TYPE }; static enum reload_reg_type rs6000_reload_register_type (enum reg_class rclass) { switch (rclass) { case GENERAL_REGS: case BASE_REGS: return GPR_REGISTER_TYPE; case FLOAT_REGS: case ALTIVEC_REGS: case VSX_REGS: return VECTOR_REGISTER_TYPE; default: return OTHER_REGISTER_TYPE; } } /* Inform reload about cases where moving X with a mode MODE to a register in RCLASS requires an extra scratch or immediate register. Return the class needed for the immediate register. For VSX and Altivec, we may need a register to convert sp+offset into reg+sp. */ static enum reg_class rs6000_secondary_reload (bool in_p, rtx x, enum reg_class rclass, enum machine_mode mode, secondary_reload_info *sri) { enum reg_class ret = ALL_REGS; enum insn_code icode; bool default_p = false; sri->icode = CODE_FOR_nothing; /* Convert vector loads and stores into gprs to use an additional base register. */ icode = rs6000_vector_reload[mode][in_p != false]; if (icode != CODE_FOR_nothing) { ret = NO_REGS; sri->icode = CODE_FOR_nothing; sri->extra_cost = 0; if (GET_CODE (x) == MEM) { rtx addr = XEXP (x, 0); /* Loads to and stores from gprs can do reg+offset, and wouldn't need an extra register in that case, but it would need an extra register if the addressing is reg+reg or (reg+reg)&(-16). */ if (rclass == GENERAL_REGS || rclass == BASE_REGS) { if (!legitimate_indirect_address_p (addr, false) && !rs6000_legitimate_offset_address_p (TImode, addr, false)) { sri->icode = icode; /* account for splitting the loads, and converting the address from reg+reg to reg. */ sri->extra_cost = (((TARGET_64BIT) ? 3 : 5) + ((GET_CODE (addr) == AND) ? 1 : 0)); } } /* Loads to and stores from vector registers can only do reg+reg addressing. Altivec registers can also do (reg+reg)&(-16). */ else if (rclass == VSX_REGS || rclass == ALTIVEC_REGS || rclass == FLOAT_REGS || rclass == NO_REGS) { if (!VECTOR_MEM_ALTIVEC_P (mode) && GET_CODE (addr) == AND && GET_CODE (XEXP (addr, 1)) == CONST_INT && INTVAL (XEXP (addr, 1)) == -16 && (legitimate_indirect_address_p (XEXP (addr, 0), false) || legitimate_indexed_address_p (XEXP (addr, 0), false))) { sri->icode = icode; sri->extra_cost = ((GET_CODE (XEXP (addr, 0)) == PLUS) ? 2 : 1); } else if (!legitimate_indirect_address_p (addr, false) && (rclass == NO_REGS || !legitimate_indexed_address_p (addr, false))) { sri->icode = icode; sri->extra_cost = 1; } else icode = CODE_FOR_nothing; } /* Any other loads, including to pseudo registers which haven't been assigned to a register yet, default to require a scratch register. */ else { sri->icode = icode; sri->extra_cost = 2; } } else if (REG_P (x)) { int regno = true_regnum (x); icode = CODE_FOR_nothing; if (regno < 0 || regno >= FIRST_PSEUDO_REGISTER) default_p = true; else { enum reg_class xclass = REGNO_REG_CLASS (regno); enum reload_reg_type rtype1 = rs6000_reload_register_type (rclass); enum reload_reg_type rtype2 = rs6000_reload_register_type (xclass); /* If memory is needed, use default_secondary_reload to create the stack slot. */ if (rtype1 != rtype2 || rtype1 == OTHER_REGISTER_TYPE) default_p = true; else ret = NO_REGS; } } else default_p = true; } else default_p = true; if (default_p) ret = default_secondary_reload (in_p, x, rclass, mode, sri); gcc_assert (ret != ALL_REGS); if (TARGET_DEBUG_ADDR) { fprintf (stderr, "\nrs6000_secondary_reload, return %s, in_p = %s, rclass = %s, " "mode = %s", reg_class_names[ret], in_p ? "true" : "false", reg_class_names[rclass], GET_MODE_NAME (mode)); if (default_p) fprintf (stderr, ", default secondary reload"); if (sri->icode != CODE_FOR_nothing) fprintf (stderr, ", reload func = %s, extra cost = %d\n", insn_data[sri->icode].name, sri->extra_cost); else fprintf (stderr, "\n"); debug_rtx (x); } return ret; } /* Fixup reload addresses for Altivec or VSX loads/stores to change SP+offset to SP+reg addressing. */ void rs6000_secondary_reload_inner (rtx reg, rtx mem, rtx scratch, bool store_p) { int regno = true_regnum (reg); enum machine_mode mode = GET_MODE (reg); enum reg_class rclass; rtx addr; rtx and_op2 = NULL_RTX; rtx addr_op1; rtx addr_op2; rtx scratch_or_premodify = scratch; rtx and_rtx; rtx cc_clobber; if (TARGET_DEBUG_ADDR) { fprintf (stderr, "\nrs6000_secondary_reload_inner, type = %s\n", store_p ? "store" : "load"); fprintf (stderr, "reg:\n"); debug_rtx (reg); fprintf (stderr, "mem:\n"); debug_rtx (mem); fprintf (stderr, "scratch:\n"); debug_rtx (scratch); } gcc_assert (regno >= 0 && regno < FIRST_PSEUDO_REGISTER); gcc_assert (GET_CODE (mem) == MEM); rclass = REGNO_REG_CLASS (regno); addr = XEXP (mem, 0); switch (rclass) { /* GPRs can handle reg + small constant, all other addresses need to use the scratch register. */ case GENERAL_REGS: case BASE_REGS: if (GET_CODE (addr) == AND) { and_op2 = XEXP (addr, 1); addr = XEXP (addr, 0); } if (GET_CODE (addr) == PRE_MODIFY) { scratch_or_premodify = XEXP (addr, 0); gcc_assert (REG_P (scratch_or_premodify)); gcc_assert (GET_CODE (XEXP (addr, 1)) == PLUS); addr = XEXP (addr, 1); } if (GET_CODE (addr) == PLUS && (!rs6000_legitimate_offset_address_p (TImode, addr, false) || and_op2 != NULL_RTX)) { addr_op1 = XEXP (addr, 0); addr_op2 = XEXP (addr, 1); gcc_assert (legitimate_indirect_address_p (addr_op1, false)); if (!REG_P (addr_op2) && (GET_CODE (addr_op2) != CONST_INT || !satisfies_constraint_I (addr_op2))) { if (TARGET_DEBUG_ADDR) { fprintf (stderr, "\nMove plus addr to register %s, mode = %s: ", rs6000_reg_names[REGNO (scratch)], GET_MODE_NAME (mode)); debug_rtx (addr_op2); } rs6000_emit_move (scratch, addr_op2, Pmode); addr_op2 = scratch; } emit_insn (gen_rtx_SET (VOIDmode, scratch_or_premodify, gen_rtx_PLUS (Pmode, addr_op1, addr_op2))); addr = scratch_or_premodify; scratch_or_premodify = scratch; } else if (!legitimate_indirect_address_p (addr, false) && !rs6000_legitimate_offset_address_p (TImode, addr, false)) { if (TARGET_DEBUG_ADDR) { fprintf (stderr, "\nMove addr to register %s, mode = %s: ", rs6000_reg_names[REGNO (scratch_or_premodify)], GET_MODE_NAME (mode)); debug_rtx (addr); } rs6000_emit_move (scratch_or_premodify, addr, Pmode); addr = scratch_or_premodify; scratch_or_premodify = scratch; } break; /* Float/Altivec registers can only handle reg+reg addressing. Move other addresses into a scratch register. */ case FLOAT_REGS: case VSX_REGS: case ALTIVEC_REGS: /* With float regs, we need to handle the AND ourselves, since we can't use the Altivec instruction with an implicit AND -16. Allow scalar loads to float registers to use reg+offset even if VSX. */ if (GET_CODE (addr) == AND && (rclass != ALTIVEC_REGS || GET_MODE_SIZE (mode) != 16 || GET_CODE (XEXP (addr, 1)) != CONST_INT || INTVAL (XEXP (addr, 1)) != -16 || !VECTOR_MEM_ALTIVEC_P (mode))) { and_op2 = XEXP (addr, 1); addr = XEXP (addr, 0); } /* If we aren't using a VSX load, save the PRE_MODIFY register and use it as the address later. */ if (GET_CODE (addr) == PRE_MODIFY && (!VECTOR_MEM_VSX_P (mode) || and_op2 != NULL_RTX || !legitimate_indexed_address_p (XEXP (addr, 1), false))) { scratch_or_premodify = XEXP (addr, 0); gcc_assert (legitimate_indirect_address_p (scratch_or_premodify, false)); gcc_assert (GET_CODE (XEXP (addr, 1)) == PLUS); addr = XEXP (addr, 1); } if (legitimate_indirect_address_p (addr, false) /* reg */ || legitimate_indexed_address_p (addr, false) /* reg+reg */ || GET_CODE (addr) == PRE_MODIFY /* VSX pre-modify */ || (GET_CODE (addr) == AND /* Altivec memory */ && GET_CODE (XEXP (addr, 1)) == CONST_INT && INTVAL (XEXP (addr, 1)) == -16 && VECTOR_MEM_ALTIVEC_P (mode)) || (rclass == FLOAT_REGS /* legacy float mem */ && GET_MODE_SIZE (mode) == 8 && and_op2 == NULL_RTX && scratch_or_premodify == scratch && rs6000_legitimate_offset_address_p (mode, addr, false))) ; else if (GET_CODE (addr) == PLUS) { addr_op1 = XEXP (addr, 0); addr_op2 = XEXP (addr, 1); gcc_assert (REG_P (addr_op1)); if (TARGET_DEBUG_ADDR) { fprintf (stderr, "\nMove plus addr to register %s, mode = %s: ", rs6000_reg_names[REGNO (scratch)], GET_MODE_NAME (mode)); debug_rtx (addr_op2); } rs6000_emit_move (scratch, addr_op2, Pmode); emit_insn (gen_rtx_SET (VOIDmode, scratch_or_premodify, gen_rtx_PLUS (Pmode, addr_op1, scratch))); addr = scratch_or_premodify; scratch_or_premodify = scratch; } else if (GET_CODE (addr) == SYMBOL_REF || GET_CODE (addr) == CONST || GET_CODE (addr) == CONST_INT || REG_P (addr)) { if (TARGET_DEBUG_ADDR) { fprintf (stderr, "\nMove addr to register %s, mode = %s: ", rs6000_reg_names[REGNO (scratch_or_premodify)], GET_MODE_NAME (mode)); debug_rtx (addr); } rs6000_emit_move (scratch_or_premodify, addr, Pmode); addr = scratch_or_premodify; scratch_or_premodify = scratch; } else gcc_unreachable (); break; default: gcc_unreachable (); } /* If the original address involved a pre-modify that we couldn't use the VSX memory instruction with update, and we haven't taken care of already, store the address in the pre-modify register and use that as the address. */ if (scratch_or_premodify != scratch && scratch_or_premodify != addr) { emit_insn (gen_rtx_SET (VOIDmode, scratch_or_premodify, addr)); addr = scratch_or_premodify; } /* If the original address involved an AND -16 and we couldn't use an ALTIVEC memory instruction, recreate the AND now, including the clobber which is generated by the general ANDSI3/ANDDI3 patterns for the andi. instruction. */ if (and_op2 != NULL_RTX) { if (! legitimate_indirect_address_p (addr, false)) { emit_insn (gen_rtx_SET (VOIDmode, scratch, addr)); addr = scratch; } if (TARGET_DEBUG_ADDR) { fprintf (stderr, "\nAnd addr to register %s, mode = %s: ", rs6000_reg_names[REGNO (scratch)], GET_MODE_NAME (mode)); debug_rtx (and_op2); } and_rtx = gen_rtx_SET (VOIDmode, scratch, gen_rtx_AND (Pmode, addr, and_op2)); cc_clobber = gen_rtx_CLOBBER (CCmode, gen_rtx_SCRATCH (CCmode)); emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (2, and_rtx, cc_clobber))); addr = scratch; } /* Adjust the address if it changed. */ if (addr != XEXP (mem, 0)) { mem = change_address (mem, mode, addr); if (TARGET_DEBUG_ADDR) fprintf (stderr, "\nrs6000_secondary_reload_inner, mem adjusted.\n"); } /* Now create the move. */ if (store_p) emit_insn (gen_rtx_SET (VOIDmode, mem, reg)); else emit_insn (gen_rtx_SET (VOIDmode, reg, mem)); return; } /* Target hook to return the cover classes for Integrated Register Allocator. Cover classes is a set of non-intersected register classes covering all hard registers used for register allocation purpose. Any move between two registers of a cover class should be cheaper than load or store of the registers. The value is array of register classes with LIM_REG_CLASSES used as the end marker. We need two IRA_COVER_CLASSES, one for pre-VSX, and the other for VSX to account for the Altivec and Floating registers being subsets of the VSX register set under VSX, but distinct register sets on pre-VSX machines. */ static const enum reg_class * rs6000_ira_cover_classes (void) { static const enum reg_class cover_pre_vsx[] = IRA_COVER_CLASSES_PRE_VSX; static const enum reg_class cover_vsx[] = IRA_COVER_CLASSES_VSX; return (TARGET_VSX) ? cover_vsx : cover_pre_vsx; } /* Allocate a 64-bit stack slot to be used for copying SDmode values through if this function has any SDmode references. */ static void rs6000_alloc_sdmode_stack_slot (void) { tree t; basic_block bb; gimple_stmt_iterator gsi; gcc_assert (cfun->machine->sdmode_stack_slot == NULL_RTX); FOR_EACH_BB (bb) for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi)) { tree ret = walk_gimple_op (gsi_stmt (gsi), rs6000_check_sdmode, NULL); if (ret) { rtx stack = assign_stack_local (DDmode, GET_MODE_SIZE (DDmode), 0); cfun->machine->sdmode_stack_slot = adjust_address_nv (stack, SDmode, 0); return; } } /* Check for any SDmode parameters of the function. */ for (t = DECL_ARGUMENTS (cfun->decl); t; t = TREE_CHAIN (t)) { if (TREE_TYPE (t) == error_mark_node) continue; if (TYPE_MODE (TREE_TYPE (t)) == SDmode || TYPE_MODE (DECL_ARG_TYPE (t)) == SDmode) { rtx stack = assign_stack_local (DDmode, GET_MODE_SIZE (DDmode), 0); cfun->machine->sdmode_stack_slot = adjust_address_nv (stack, SDmode, 0); return; } } } static void rs6000_instantiate_decls (void) { if (cfun->machine->sdmode_stack_slot != NULL_RTX) instantiate_decl_rtl (cfun->machine->sdmode_stack_slot); } /* Given an rtx X being reloaded into a reg required to be in class CLASS, return the class of reg to actually use. In general this is just CLASS; but on some machines in some cases it is preferable to use a more restrictive class. On the RS/6000, we have to return NO_REGS when we want to reload a floating-point CONST_DOUBLE to force it to be copied to memory. We also don't want to reload integer values into floating-point registers if we can at all help it. In fact, this can cause reload to die, if it tries to generate a reload of CTR into a FP register and discovers it doesn't have the memory location required. ??? Would it be a good idea to have reload do the converse, that is try to reload floating modes into FP registers if possible? */ static enum reg_class rs6000_preferred_reload_class (rtx x, enum reg_class rclass) { enum machine_mode mode = GET_MODE (x); if (VECTOR_UNIT_VSX_P (mode) && x == CONST0_RTX (mode) && VSX_REG_CLASS_P (rclass)) return rclass; if (VECTOR_UNIT_ALTIVEC_OR_VSX_P (mode) && (rclass == ALTIVEC_REGS || rclass == VSX_REGS) && easy_vector_constant (x, mode)) return ALTIVEC_REGS; if (CONSTANT_P (x) && reg_classes_intersect_p (rclass, FLOAT_REGS)) return NO_REGS; if (GET_MODE_CLASS (mode) == MODE_INT && rclass == NON_SPECIAL_REGS) return GENERAL_REGS; /* For VSX, prefer the traditional registers for DF if the address is of the form reg+offset because we can use the non-VSX loads. Prefer the Altivec registers if Altivec is handling the vector operations (i.e. V16QI, V8HI, and V4SI). */ if (rclass == VSX_REGS && VECTOR_MEM_VSX_P (mode)) { if (mode == DFmode && GET_CODE (x) == MEM) { rtx addr = XEXP (x, 0); if (legitimate_indirect_address_p (addr, false)) /* reg */ return VSX_REGS; if (legitimate_indexed_address_p (addr, false)) /* reg+reg */ return VSX_REGS; if (GET_CODE (addr) == PRE_MODIFY && legitimate_indexed_address_p (XEXP (addr, 0), false)) return VSX_REGS; return FLOAT_REGS; } if (VECTOR_UNIT_ALTIVEC_P (mode)) return ALTIVEC_REGS; return rclass; } return rclass; } /* Debug version of rs6000_preferred_reload_class. */ static enum reg_class rs6000_debug_preferred_reload_class (rtx x, enum reg_class rclass) { enum reg_class ret = rs6000_preferred_reload_class (x, rclass); fprintf (stderr, "\nrs6000_preferred_reload_class, return %s, rclass = %s, " "mode = %s, x:\n", reg_class_names[ret], reg_class_names[rclass], GET_MODE_NAME (GET_MODE (x))); debug_rtx (x); return ret; } /* If we are copying between FP or AltiVec registers and anything else, we need a memory location. The exception is when we are targeting ppc64 and the move to/from fpr to gpr instructions are available. Also, under VSX, you can copy vector registers from the FP register set to the Altivec register set and vice versa. */ static bool rs6000_secondary_memory_needed (enum reg_class class1, enum reg_class class2, enum machine_mode mode) { if (class1 == class2) return false; /* Under VSX, there are 3 register classes that values could be in (VSX_REGS, ALTIVEC_REGS, and FLOAT_REGS). We don't need to use memory to copy between these classes. But we need memory for other things that can go in FLOAT_REGS like SFmode. */ if (TARGET_VSX && (VECTOR_MEM_VSX_P (mode) || VECTOR_UNIT_VSX_P (mode)) && (class1 == VSX_REGS || class1 == ALTIVEC_REGS || class1 == FLOAT_REGS)) return (class2 != VSX_REGS && class2 != ALTIVEC_REGS && class2 != FLOAT_REGS); if (class1 == VSX_REGS || class2 == VSX_REGS) return true; if (class1 == FLOAT_REGS && (!TARGET_MFPGPR || !TARGET_POWERPC64 || ((mode != DFmode) && (mode != DDmode) && (mode != DImode)))) return true; if (class2 == FLOAT_REGS && (!TARGET_MFPGPR || !TARGET_POWERPC64 || ((mode != DFmode) && (mode != DDmode) && (mode != DImode)))) return true; if (class1 == ALTIVEC_REGS || class2 == ALTIVEC_REGS) return true; return false; } /* Debug version of rs6000_secondary_memory_needed. */ static bool rs6000_debug_secondary_memory_needed (enum reg_class class1, enum reg_class class2, enum machine_mode mode) { bool ret = rs6000_secondary_memory_needed (class1, class2, mode); fprintf (stderr, "rs6000_secondary_memory_needed, return: %s, class1 = %s, " "class2 = %s, mode = %s\n", ret ? "true" : "false", reg_class_names[class1], reg_class_names[class2], GET_MODE_NAME (mode)); return ret; } /* Return the register class of a scratch register needed to copy IN into or out of a register in RCLASS in MODE. If it can be done directly, NO_REGS is returned. */ static enum reg_class rs6000_secondary_reload_class (enum reg_class rclass, enum machine_mode mode, rtx in) { int regno; if (TARGET_ELF || (DEFAULT_ABI == ABI_DARWIN #if TARGET_MACHO && MACHOPIC_INDIRECT #endif )) { /* We cannot copy a symbolic operand directly into anything other than BASE_REGS for TARGET_ELF. So indicate that a register from BASE_REGS is needed as an intermediate register. On Darwin, pic addresses require a load from memory, which needs a base register. */ if (rclass != BASE_REGS && (GET_CODE (in) == SYMBOL_REF || GET_CODE (in) == HIGH || GET_CODE (in) == LABEL_REF || GET_CODE (in) == CONST)) return BASE_REGS; } if (GET_CODE (in) == REG) { regno = REGNO (in); if (regno >= FIRST_PSEUDO_REGISTER) { regno = true_regnum (in); if (regno >= FIRST_PSEUDO_REGISTER) regno = -1; } } else if (GET_CODE (in) == SUBREG) { regno = true_regnum (in); if (regno >= FIRST_PSEUDO_REGISTER) regno = -1; } else regno = -1; /* We can place anything into GENERAL_REGS and can put GENERAL_REGS into anything. */ if (rclass == GENERAL_REGS || rclass == BASE_REGS || (regno >= 0 && INT_REGNO_P (regno))) return NO_REGS; /* Constants, memory, and FP registers can go into FP registers. */ if ((regno == -1 || FP_REGNO_P (regno)) && (rclass == FLOAT_REGS || rclass == NON_SPECIAL_REGS)) return (mode != SDmode) ? NO_REGS : GENERAL_REGS; /* Memory, and FP/altivec registers can go into fp/altivec registers under VSX. */ if (TARGET_VSX && (regno == -1 || VSX_REGNO_P (regno)) && VSX_REG_CLASS_P (rclass)) return NO_REGS; /* Memory, and AltiVec registers can go into AltiVec registers. */ if ((regno == -1 || ALTIVEC_REGNO_P (regno)) && rclass == ALTIVEC_REGS) return NO_REGS; /* We can copy among the CR registers. */ if ((rclass == CR_REGS || rclass == CR0_REGS) && regno >= 0 && CR_REGNO_P (regno)) return NO_REGS; /* Otherwise, we need GENERAL_REGS. */ return GENERAL_REGS; } /* Debug version of rs6000_secondary_reload_class. */ static enum reg_class rs6000_debug_secondary_reload_class (enum reg_class rclass, enum machine_mode mode, rtx in) { enum reg_class ret = rs6000_secondary_reload_class (rclass, mode, in); fprintf (stderr, "\nrs6000_secondary_reload_class, return %s, rclass = %s, " "mode = %s, input rtx:\n", reg_class_names[ret], reg_class_names[rclass], GET_MODE_NAME (mode)); debug_rtx (in); return ret; } /* Return nonzero if for CLASS a mode change from FROM to TO is invalid. */ static bool rs6000_cannot_change_mode_class (enum machine_mode from, enum machine_mode to, enum reg_class rclass) { unsigned from_size = GET_MODE_SIZE (from); unsigned to_size = GET_MODE_SIZE (to); if (from_size != to_size) { enum reg_class xclass = (TARGET_VSX) ? VSX_REGS : FLOAT_REGS; return ((from_size < 8 || to_size < 8 || TARGET_IEEEQUAD) && reg_classes_intersect_p (xclass, rclass)); } if (TARGET_E500_DOUBLE && ((((to) == DFmode) + ((from) == DFmode)) == 1 || (((to) == TFmode) + ((from) == TFmode)) == 1 || (((to) == DDmode) + ((from) == DDmode)) == 1 || (((to) == TDmode) + ((from) == TDmode)) == 1 || (((to) == DImode) + ((from) == DImode)) == 1)) return true; /* Since the VSX register set includes traditional floating point registers and altivec registers, just check for the size being different instead of trying to check whether the modes are vector modes. Otherwise it won't allow say DF and DI to change classes. */ if (TARGET_VSX && VSX_REG_CLASS_P (rclass)) return (from_size != 8 && from_size != 16); if (TARGET_ALTIVEC && rclass == ALTIVEC_REGS && (ALTIVEC_VECTOR_MODE (from) + ALTIVEC_VECTOR_MODE (to)) == 1) return true; if (TARGET_SPE && (SPE_VECTOR_MODE (from) + SPE_VECTOR_MODE (to)) == 1 && reg_classes_intersect_p (GENERAL_REGS, rclass)) return true; return false; } /* Debug version of rs6000_cannot_change_mode_class. */ static bool rs6000_debug_cannot_change_mode_class (enum machine_mode from, enum machine_mode to, enum reg_class rclass) { bool ret = rs6000_cannot_change_mode_class (from, to, rclass); fprintf (stderr, "rs6000_cannot_change_mode_class, return %s, from = %s, " "to = %s, rclass = %s\n", ret ? "true" : "false", GET_MODE_NAME (from), GET_MODE_NAME (to), reg_class_names[rclass]); return ret; } /* Given a comparison operation, return the bit number in CCR to test. We know this is a valid comparison. SCC_P is 1 if this is for an scc. That means that %D will have been used instead of %C, so the bits will be in different places. Return -1 if OP isn't a valid comparison for some reason. */ int ccr_bit (rtx op, int scc_p) { enum rtx_code code = GET_CODE (op); enum machine_mode cc_mode; int cc_regnum; int base_bit; rtx reg; if (!COMPARISON_P (op)) return -1; reg = XEXP (op, 0); gcc_assert (GET_CODE (reg) == REG && CR_REGNO_P (REGNO (reg))); cc_mode = GET_MODE (reg); cc_regnum = REGNO (reg); base_bit = 4 * (cc_regnum - CR0_REGNO); validate_condition_mode (code, cc_mode); /* When generating a sCOND operation, only positive conditions are allowed. */ gcc_assert (!scc_p || code == EQ || code == GT || code == LT || code == UNORDERED || code == GTU || code == LTU); switch (code) { case NE: return scc_p ? base_bit + 3 : base_bit + 2; case EQ: return base_bit + 2; case GT: case GTU: case UNLE: return base_bit + 1; case LT: case LTU: case UNGE: return base_bit; case ORDERED: case UNORDERED: return base_bit + 3; case GE: case GEU: /* If scc, we will have done a cror to put the bit in the unordered position. So test that bit. For integer, this is ! LT unless this is an scc insn. */ return scc_p ? base_bit + 3 : base_bit; case LE: case LEU: return scc_p ? base_bit + 3 : base_bit + 1; default: gcc_unreachable (); } } /* Return the GOT register. */ rtx rs6000_got_register (rtx value ATTRIBUTE_UNUSED) { /* The second flow pass currently (June 1999) can't update regs_ever_live without disturbing other parts of the compiler, so update it here to make the prolog/epilogue code happy. */ if (!can_create_pseudo_p () && !df_regs_ever_live_p (RS6000_PIC_OFFSET_TABLE_REGNUM)) df_set_regs_ever_live (RS6000_PIC_OFFSET_TABLE_REGNUM, true); crtl->uses_pic_offset_table = 1; return pic_offset_table_rtx; } /* Function to init struct machine_function. This will be called, via a pointer variable, from push_function_context. */ static struct machine_function * rs6000_init_machine_status (void) { return GGC_CNEW (machine_function); } /* These macros test for integers and extract the low-order bits. */ #define INT_P(X) \ ((GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST_DOUBLE) \ && GET_MODE (X) == VOIDmode) #define INT_LOWPART(X) \ (GET_CODE (X) == CONST_INT ? INTVAL (X) : CONST_DOUBLE_LOW (X)) int extract_MB (rtx op) { int i; unsigned long val = INT_LOWPART (op); /* If the high bit is zero, the value is the first 1 bit we find from the left. */ if ((val & 0x80000000) == 0) { gcc_assert (val & 0xffffffff); i = 1; while (((val <<= 1) & 0x80000000) == 0) ++i; return i; } /* If the high bit is set and the low bit is not, or the mask is all 1's, the value is zero. */ if ((val & 1) == 0 || (val & 0xffffffff) == 0xffffffff) return 0; /* Otherwise we have a wrap-around mask. Look for the first 0 bit from the right. */ i = 31; while (((val >>= 1) & 1) != 0) --i; return i; } int extract_ME (rtx op) { int i; unsigned long val = INT_LOWPART (op); /* If the low bit is zero, the value is the first 1 bit we find from the right. */ if ((val & 1) == 0) { gcc_assert (val & 0xffffffff); i = 30; while (((val >>= 1) & 1) == 0) --i; return i; } /* If the low bit is set and the high bit is not, or the mask is all 1's, the value is 31. */ if ((val & 0x80000000) == 0 || (val & 0xffffffff) == 0xffffffff) return 31; /* Otherwise we have a wrap-around mask. Look for the first 0 bit from the left. */ i = 0; while (((val <<= 1) & 0x80000000) != 0) ++i; return i; } /* Locate some local-dynamic symbol still in use by this function so that we can print its name in some tls_ld pattern. */ static const char * rs6000_get_some_local_dynamic_name (void) { rtx insn; if (cfun->machine->some_ld_name) return cfun->machine->some_ld_name; for (insn = get_insns (); insn ; insn = NEXT_INSN (insn)) if (INSN_P (insn) && for_each_rtx (&PATTERN (insn), rs6000_get_some_local_dynamic_name_1, 0)) return cfun->machine->some_ld_name; gcc_unreachable (); } /* Helper function for rs6000_get_some_local_dynamic_name. */ static int rs6000_get_some_local_dynamic_name_1 (rtx *px, void *data ATTRIBUTE_UNUSED) { rtx x = *px; if (GET_CODE (x) == SYMBOL_REF) { const char *str = XSTR (x, 0); if (SYMBOL_REF_TLS_MODEL (x) == TLS_MODEL_LOCAL_DYNAMIC) { cfun->machine->some_ld_name = str; return 1; } } return 0; } /* Write out a function code label. */ void rs6000_output_function_entry (FILE *file, const char *fname) { if (fname[0] != '.') { switch (DEFAULT_ABI) { default: gcc_unreachable (); case ABI_AIX: if (DOT_SYMBOLS) putc ('.', file); else ASM_OUTPUT_INTERNAL_LABEL_PREFIX (file, "L."); break; case ABI_V4: case ABI_DARWIN: break; } } if (TARGET_AIX) RS6000_OUTPUT_BASENAME (file, fname); else assemble_name (file, fname); } /* Print an operand. Recognize special options, documented below. */ #if TARGET_ELF #define SMALL_DATA_RELOC ((rs6000_sdata == SDATA_EABI) ? "sda21" : "sdarel") #define SMALL_DATA_REG ((rs6000_sdata == SDATA_EABI) ? 0 : 13) #else #define SMALL_DATA_RELOC "sda21" #define SMALL_DATA_REG 0 #endif void print_operand (FILE *file, rtx x, int code) { int i; HOST_WIDE_INT val; unsigned HOST_WIDE_INT uval; switch (code) { case '.': /* Write out an instruction after the call which may be replaced with glue code by the loader. This depends on the AIX version. */ asm_fprintf (file, RS6000_CALL_GLUE); return; /* %a is output_address. */ case 'A': /* If X is a constant integer whose low-order 5 bits are zero, write 'l'. Otherwise, write 'r'. This is a kludge to fix a bug in the AIX assembler where "sri" with a zero shift count writes a trash instruction. */ if (GET_CODE (x) == CONST_INT && (INTVAL (x) & 31) == 0) putc ('l', file); else putc ('r', file); return; case 'b': /* If constant, low-order 16 bits of constant, unsigned. Otherwise, write normally. */ if (INT_P (x)) fprintf (file, HOST_WIDE_INT_PRINT_DEC, INT_LOWPART (x) & 0xffff); else print_operand (file, x, 0); return; case 'B': /* If the low-order bit is zero, write 'r'; otherwise, write 'l' for 64-bit mask direction. */ putc (((INT_LOWPART (x) & 1) == 0 ? 'r' : 'l'), file); return; /* %c is output_addr_const if a CONSTANT_ADDRESS_P, otherwise output_operand. */ case 'c': /* X is a CR register. Print the number of the GT bit of the CR. */ if (GET_CODE (x) != REG || ! CR_REGNO_P (REGNO (x))) output_operand_lossage ("invalid %%c value"); else fprintf (file, "%d", 4 * (REGNO (x) - CR0_REGNO) + 1); return; case 'D': /* Like 'J' but get to the GT bit only. */ gcc_assert (GET_CODE (x) == REG); /* Bit 1 is GT bit. */ i = 4 * (REGNO (x) - CR0_REGNO) + 1; /* Add one for shift count in rlinm for scc. */ fprintf (file, "%d", i + 1); return; case 'E': /* X is a CR register. Print the number of the EQ bit of the CR */ if (GET_CODE (x) != REG || ! CR_REGNO_P (REGNO (x))) output_operand_lossage ("invalid %%E value"); else fprintf (file, "%d", 4 * (REGNO (x) - CR0_REGNO) + 2); return; case 'f': /* X is a CR register. Print the shift count needed to move it to the high-order four bits. */ if (GET_CODE (x) != REG || ! CR_REGNO_P (REGNO (x))) output_operand_lossage ("invalid %%f value"); else fprintf (file, "%d", 4 * (REGNO (x) - CR0_REGNO)); return; case 'F': /* Similar, but print the count for the rotate in the opposite direction. */ if (GET_CODE (x) != REG || ! CR_REGNO_P (REGNO (x))) output_operand_lossage ("invalid %%F value"); else fprintf (file, "%d", 32 - 4 * (REGNO (x) - CR0_REGNO)); return; case 'G': /* X is a constant integer. If it is negative, print "m", otherwise print "z". This is to make an aze or ame insn. */ if (GET_CODE (x) != CONST_INT) output_operand_lossage ("invalid %%G value"); else if (INTVAL (x) >= 0) putc ('z', file); else putc ('m', file); return; case 'h': /* If constant, output low-order five bits. Otherwise, write normally. */ if (INT_P (x)) fprintf (file, HOST_WIDE_INT_PRINT_DEC, INT_LOWPART (x) & 31); else print_operand (file, x, 0); return; case 'H': /* If constant, output low-order six bits. Otherwise, write normally. */ if (INT_P (x)) fprintf (file, HOST_WIDE_INT_PRINT_DEC, INT_LOWPART (x) & 63); else print_operand (file, x, 0); return; case 'I': /* Print `i' if this is a constant, else nothing. */ if (INT_P (x)) putc ('i', file); return; case 'j': /* Write the bit number in CCR for jump. */ i = ccr_bit (x, 0); if (i == -1) output_operand_lossage ("invalid %%j code"); else fprintf (file, "%d", i); return; case 'J': /* Similar, but add one for shift count in rlinm for scc and pass scc flag to `ccr_bit'. */ i = ccr_bit (x, 1); if (i == -1) output_operand_lossage ("invalid %%J code"); else /* If we want bit 31, write a shift count of zero, not 32. */ fprintf (file, "%d", i == 31 ? 0 : i + 1); return; case 'k': /* X must be a constant. Write the 1's complement of the constant. */ if (! INT_P (x)) output_operand_lossage ("invalid %%k value"); else fprintf (file, HOST_WIDE_INT_PRINT_DEC, ~ INT_LOWPART (x)); return; case 'K': /* X must be a symbolic constant on ELF. Write an expression suitable for an 'addi' that adds in the low 16 bits of the MEM. */ if (GET_CODE (x) != CONST) { print_operand_address (file, x); fputs ("@l", file); } else { if (GET_CODE (XEXP (x, 0)) != PLUS || (GET_CODE (XEXP (XEXP (x, 0), 0)) != SYMBOL_REF && GET_CODE (XEXP (XEXP (x, 0), 0)) != LABEL_REF) || GET_CODE (XEXP (XEXP (x, 0), 1)) != CONST_INT) output_operand_lossage ("invalid %%K value"); print_operand_address (file, XEXP (XEXP (x, 0), 0)); fputs ("@l", file); /* For GNU as, there must be a non-alphanumeric character between 'l' and the number. The '-' is added by print_operand() already. */ if (INTVAL (XEXP (XEXP (x, 0), 1)) >= 0) fputs ("+", file); print_operand (file, XEXP (XEXP (x, 0), 1), 0); } return; /* %l is output_asm_label. */ case 'L': /* Write second word of DImode or DFmode reference. Works on register or non-indexed memory only. */ if (GET_CODE (x) == REG) fputs (reg_names[REGNO (x) + 1], file); else if (GET_CODE (x) == MEM) { /* Handle possible auto-increment. Since it is pre-increment and we have already done it, we can just use an offset of word. */ if (GET_CODE (XEXP (x, 0)) == PRE_INC || GET_CODE (XEXP (x, 0)) == PRE_DEC) output_address (plus_constant (XEXP (XEXP (x, 0), 0), UNITS_PER_WORD)); else if (GET_CODE (XEXP (x, 0)) == PRE_MODIFY) output_address (plus_constant (XEXP (XEXP (x, 0), 0), UNITS_PER_WORD)); else output_address (XEXP (adjust_address_nv (x, SImode, UNITS_PER_WORD), 0)); if (small_data_operand (x, GET_MODE (x))) fprintf (file, "@%s(%s)", SMALL_DATA_RELOC, reg_names[SMALL_DATA_REG]); } return; case 'm': /* MB value for a mask operand. */ if (! mask_operand (x, SImode)) output_operand_lossage ("invalid %%m value"); fprintf (file, "%d", extract_MB (x)); return; case 'M': /* ME value for a mask operand. */ if (! mask_operand (x, SImode)) output_operand_lossage ("invalid %%M value"); fprintf (file, "%d", extract_ME (x)); return; /* %n outputs the negative of its operand. */ case 'N': /* Write the number of elements in the vector times 4. */ if (GET_CODE (x) != PARALLEL) output_operand_lossage ("invalid %%N value"); else fprintf (file, "%d", XVECLEN (x, 0) * 4); return; case 'O': /* Similar, but subtract 1 first. */ if (GET_CODE (x) != PARALLEL) output_operand_lossage ("invalid %%O value"); else fprintf (file, "%d", (XVECLEN (x, 0) - 1) * 4); return; case 'p': /* X is a CONST_INT that is a power of two. Output the logarithm. */ if (! INT_P (x) || INT_LOWPART (x) < 0 || (i = exact_log2 (INT_LOWPART (x))) < 0) output_operand_lossage ("invalid %%p value"); else fprintf (file, "%d", i); return; case 'P': /* The operand must be an indirect memory reference. The result is the register name. */ if (GET_CODE (x) != MEM || GET_CODE (XEXP (x, 0)) != REG || REGNO (XEXP (x, 0)) >= 32) output_operand_lossage ("invalid %%P value"); else fputs (reg_names[REGNO (XEXP (x, 0))], file); return; case 'q': /* This outputs the logical code corresponding to a boolean expression. The expression may have one or both operands negated (if one, only the first one). For condition register logical operations, it will also treat the negated CR codes as NOTs, but not handle NOTs of them. */ { const char *const *t = 0; const char *s; enum rtx_code code = GET_CODE (x); static const char * const tbl[3][3] = { { "and", "andc", "nor" }, { "or", "orc", "nand" }, { "xor", "eqv", "xor" } }; if (code == AND) t = tbl[0]; else if (code == IOR) t = tbl[1]; else if (code == XOR) t = tbl[2]; else output_operand_lossage ("invalid %%q value"); if (GET_CODE (XEXP (x, 0)) != NOT) s = t[0]; else { if (GET_CODE (XEXP (x, 1)) == NOT) s = t[2]; else s = t[1]; } fputs (s, file); } return; case 'Q': if (TARGET_MFCRF) fputc (',', file); /* FALLTHRU */ else return; case 'R': /* X is a CR register. Print the mask for `mtcrf'. */ if (GET_CODE (x) != REG || ! CR_REGNO_P (REGNO (x))) output_operand_lossage ("invalid %%R value"); else fprintf (file, "%d", 128 >> (REGNO (x) - CR0_REGNO)); return; case 's': /* Low 5 bits of 32 - value */ if (! INT_P (x)) output_operand_lossage ("invalid %%s value"); else fprintf (file, HOST_WIDE_INT_PRINT_DEC, (32 - INT_LOWPART (x)) & 31); return; case 'S': /* PowerPC64 mask position. All 0's is excluded. CONST_INT 32-bit mask is considered sign-extended so any transition must occur within the CONST_INT, not on the boundary. */ if (! mask64_operand (x, DImode)) output_operand_lossage ("invalid %%S value"); uval = INT_LOWPART (x); if (uval & 1) /* Clear Left */ { #if HOST_BITS_PER_WIDE_INT > 64 uval &= ((unsigned HOST_WIDE_INT) 1 << 64) - 1; #endif i = 64; } else /* Clear Right */ { uval = ~uval; #if HOST_BITS_PER_WIDE_INT > 64 uval &= ((unsigned HOST_WIDE_INT) 1 << 64) - 1; #endif i = 63; } while (uval != 0) --i, uval >>= 1; gcc_assert (i >= 0); fprintf (file, "%d", i); return; case 't': /* Like 'J' but get to the OVERFLOW/UNORDERED bit. */ gcc_assert (GET_CODE (x) == REG && GET_MODE (x) == CCmode); /* Bit 3 is OV bit. */ i = 4 * (REGNO (x) - CR0_REGNO) + 3; /* If we want bit 31, write a shift count of zero, not 32. */ fprintf (file, "%d", i == 31 ? 0 : i + 1); return; case 'T': /* Print the symbolic name of a branch target register. */ if (GET_CODE (x) != REG || (REGNO (x) != LR_REGNO && REGNO (x) != CTR_REGNO)) output_operand_lossage ("invalid %%T value"); else if (REGNO (x) == LR_REGNO) fputs (TARGET_NEW_MNEMONICS ? "lr" : "r", file); else fputs ("ctr", file); return; case 'u': /* High-order 16 bits of constant for use in unsigned operand. */ if (! INT_P (x)) output_operand_lossage ("invalid %%u value"); else fprintf (file, HOST_WIDE_INT_PRINT_HEX, (INT_LOWPART (x) >> 16) & 0xffff); return; case 'v': /* High-order 16 bits of constant for use in signed operand. */ if (! INT_P (x)) output_operand_lossage ("invalid %%v value"); else fprintf (file, HOST_WIDE_INT_PRINT_HEX, (INT_LOWPART (x) >> 16) & 0xffff); return; case 'U': /* Print `u' if this has an auto-increment or auto-decrement. */ if (GET_CODE (x) == MEM && (GET_CODE (XEXP (x, 0)) == PRE_INC || GET_CODE (XEXP (x, 0)) == PRE_DEC || GET_CODE (XEXP (x, 0)) == PRE_MODIFY)) putc ('u', file); return; case 'V': /* Print the trap code for this operand. */ switch (GET_CODE (x)) { case EQ: fputs ("eq", file); /* 4 */ break; case NE: fputs ("ne", file); /* 24 */ break; case LT: fputs ("lt", file); /* 16 */ break; case LE: fputs ("le", file); /* 20 */ break; case GT: fputs ("gt", file); /* 8 */ break; case GE: fputs ("ge", file); /* 12 */ break; case LTU: fputs ("llt", file); /* 2 */ break; case LEU: fputs ("lle", file); /* 6 */ break; case GTU: fputs ("lgt", file); /* 1 */ break; case GEU: fputs ("lge", file); /* 5 */ break; default: gcc_unreachable (); } break; case 'w': /* If constant, low-order 16 bits of constant, signed. Otherwise, write normally. */ if (INT_P (x)) fprintf (file, HOST_WIDE_INT_PRINT_DEC, ((INT_LOWPART (x) & 0xffff) ^ 0x8000) - 0x8000); else print_operand (file, x, 0); return; case 'W': /* MB value for a PowerPC64 rldic operand. */ val = (GET_CODE (x) == CONST_INT ? INTVAL (x) : CONST_DOUBLE_HIGH (x)); if (val < 0) i = -1; else for (i = 0; i < HOST_BITS_PER_WIDE_INT; i++) if ((val <<= 1) < 0) break; #if HOST_BITS_PER_WIDE_INT == 32 if (GET_CODE (x) == CONST_INT && i >= 0) i += 32; /* zero-extend high-part was all 0's */ else if (GET_CODE (x) == CONST_DOUBLE && i == 32) { val = CONST_DOUBLE_LOW (x); gcc_assert (val); if (val < 0) --i; else for ( ; i < 64; i++) if ((val <<= 1) < 0) break; } #endif fprintf (file, "%d", i + 1); return; case 'x': /* X is a FPR or Altivec register used in a VSX context. */ if (GET_CODE (x) != REG || !VSX_REGNO_P (REGNO (x))) output_operand_lossage ("invalid %%x value"); else { int reg = REGNO (x); int vsx_reg = (FP_REGNO_P (reg) ? reg - 32 : reg - FIRST_ALTIVEC_REGNO + 32); #ifdef TARGET_REGNAMES if (TARGET_REGNAMES) fprintf (file, "%%vs%d", vsx_reg); else #endif fprintf (file, "%d", vsx_reg); } return; case 'X': if (GET_CODE (x) == MEM && (legitimate_indexed_address_p (XEXP (x, 0), 0) || (GET_CODE (XEXP (x, 0)) == PRE_MODIFY && legitimate_indexed_address_p (XEXP (XEXP (x, 0), 1), 0)))) putc ('x', file); return; case 'Y': /* Like 'L', for third word of TImode */ if (GET_CODE (x) == REG) fputs (reg_names[REGNO (x) + 2], file); else if (GET_CODE (x) == MEM) { if (GET_CODE (XEXP (x, 0)) == PRE_INC || GET_CODE (XEXP (x, 0)) == PRE_DEC) output_address (plus_constant (XEXP (XEXP (x, 0), 0), 8)); else if (GET_CODE (XEXP (x, 0)) == PRE_MODIFY) output_address (plus_constant (XEXP (XEXP (x, 0), 0), 8)); else output_address (XEXP (adjust_address_nv (x, SImode, 8), 0)); if (small_data_operand (x, GET_MODE (x))) fprintf (file, "@%s(%s)", SMALL_DATA_RELOC, reg_names[SMALL_DATA_REG]); } return; case 'z': /* X is a SYMBOL_REF. Write out the name preceded by a period and without any trailing data in brackets. Used for function names. If we are configured for System V (or the embedded ABI) on the PowerPC, do not emit the period, since those systems do not use TOCs and the like. */ gcc_assert (GET_CODE (x) == SYMBOL_REF); /* Mark the decl as referenced so that cgraph will output the function. */ if (SYMBOL_REF_DECL (x)) mark_decl_referenced (SYMBOL_REF_DECL (x)); /* For macho, check to see if we need a stub. */ if (TARGET_MACHO) { const char *name = XSTR (x, 0); #if TARGET_MACHO if (MACHOPIC_INDIRECT && machopic_classify_symbol (x) == MACHOPIC_UNDEFINED_FUNCTION) name = machopic_indirection_name (x, /*stub_p=*/true); #endif assemble_name (file, name); } else if (!DOT_SYMBOLS) assemble_name (file, XSTR (x, 0)); else rs6000_output_function_entry (file, XSTR (x, 0)); return; case 'Z': /* Like 'L', for last word of TImode. */ if (GET_CODE (x) == REG) fputs (reg_names[REGNO (x) + 3], file); else if (GET_CODE (x) == MEM) { if (GET_CODE (XEXP (x, 0)) == PRE_INC || GET_CODE (XEXP (x, 0)) == PRE_DEC) output_address (plus_constant (XEXP (XEXP (x, 0), 0), 12)); else if (GET_CODE (XEXP (x, 0)) == PRE_MODIFY) output_address (plus_constant (XEXP (XEXP (x, 0), 0), 12)); else output_address (XEXP (adjust_address_nv (x, SImode, 12), 0)); if (small_data_operand (x, GET_MODE (x))) fprintf (file, "@%s(%s)", SMALL_DATA_RELOC, reg_names[SMALL_DATA_REG]); } return; /* Print AltiVec or SPE memory operand. */ case 'y': { rtx tmp; gcc_assert (GET_CODE (x) == MEM); tmp = XEXP (x, 0); /* Ugly hack because %y is overloaded. */ if ((TARGET_SPE || TARGET_E500_DOUBLE) && (GET_MODE_SIZE (GET_MODE (x)) == 8 || GET_MODE (x) == TFmode || GET_MODE (x) == TImode)) { /* Handle [reg]. */ if (GET_CODE (tmp) == REG) { fprintf (file, "0(%s)", reg_names[REGNO (tmp)]); break; } /* Handle [reg+UIMM]. */ else if (GET_CODE (tmp) == PLUS && GET_CODE (XEXP (tmp, 1)) == CONST_INT) { int x; gcc_assert (GET_CODE (XEXP (tmp, 0)) == REG); x = INTVAL (XEXP (tmp, 1)); fprintf (file, "%d(%s)", x, reg_names[REGNO (XEXP (tmp, 0))]); break; } /* Fall through. Must be [reg+reg]. */ } if (VECTOR_MEM_ALTIVEC_P (GET_MODE (x)) && GET_CODE (tmp) == AND && GET_CODE (XEXP (tmp, 1)) == CONST_INT && INTVAL (XEXP (tmp, 1)) == -16) tmp = XEXP (tmp, 0); else if (VECTOR_MEM_VSX_P (GET_MODE (x)) && GET_CODE (tmp) == PRE_MODIFY) tmp = XEXP (tmp, 1); if (GET_CODE (tmp) == REG) fprintf (file, "0,%s", reg_names[REGNO (tmp)]); else { if (!GET_CODE (tmp) == PLUS || !REG_P (XEXP (tmp, 0)) || !REG_P (XEXP (tmp, 1))) { output_operand_lossage ("invalid %%y value, try using the 'Z' constraint"); break; } if (REGNO (XEXP (tmp, 0)) == 0) fprintf (file, "%s,%s", reg_names[ REGNO (XEXP (tmp, 1)) ], reg_names[ REGNO (XEXP (tmp, 0)) ]); else fprintf (file, "%s,%s", reg_names[ REGNO (XEXP (tmp, 0)) ], reg_names[ REGNO (XEXP (tmp, 1)) ]); } break; } case 0: if (GET_CODE (x) == REG) fprintf (file, "%s", reg_names[REGNO (x)]); else if (GET_CODE (x) == MEM) { /* We need to handle PRE_INC and PRE_DEC here, since we need to know the width from the mode. */ if (GET_CODE (XEXP (x, 0)) == PRE_INC) fprintf (file, "%d(%s)", GET_MODE_SIZE (GET_MODE (x)), reg_names[REGNO (XEXP (XEXP (x, 0), 0))]); else if (GET_CODE (XEXP (x, 0)) == PRE_DEC) fprintf (file, "%d(%s)", - GET_MODE_SIZE (GET_MODE (x)), reg_names[REGNO (XEXP (XEXP (x, 0), 0))]); else if (GET_CODE (XEXP (x, 0)) == PRE_MODIFY) output_address (XEXP (XEXP (x, 0), 1)); else output_address (XEXP (x, 0)); } else output_addr_const (file, x); return; case '&': assemble_name (file, rs6000_get_some_local_dynamic_name ()); return; default: output_operand_lossage ("invalid %%xn code"); } } /* Print the address of an operand. */ void print_operand_address (FILE *file, rtx x) { if (GET_CODE (x) == REG) fprintf (file, "0(%s)", reg_names[ REGNO (x) ]); else if (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == CONST || GET_CODE (x) == LABEL_REF) { output_addr_const (file, x); if (small_data_operand (x, GET_MODE (x))) fprintf (file, "@%s(%s)", SMALL_DATA_RELOC, reg_names[SMALL_DATA_REG]); else gcc_assert (!TARGET_TOC); } else if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 1)) == REG) { gcc_assert (REG_P (XEXP (x, 0))); if (REGNO (XEXP (x, 0)) == 0) fprintf (file, "%s,%s", reg_names[ REGNO (XEXP (x, 1)) ], reg_names[ REGNO (XEXP (x, 0)) ]); else fprintf (file, "%s,%s", reg_names[ REGNO (XEXP (x, 0)) ], reg_names[ REGNO (XEXP (x, 1)) ]); } else if (GET_CODE (x) == PLUS && GET_CODE (XEXP (x, 1)) == CONST_INT) fprintf (file, HOST_WIDE_INT_PRINT_DEC "(%s)", INTVAL (XEXP (x, 1)), reg_names[ REGNO (XEXP (x, 0)) ]); #if TARGET_ELF else if (GET_CODE (x) == LO_SUM && GET_CODE (XEXP (x, 0)) == REG && CONSTANT_P (XEXP (x, 1))) { output_addr_const (file, XEXP (x, 1)); fprintf (file, "@l(%s)", reg_names[ REGNO (XEXP (x, 0)) ]); } #endif #if TARGET_MACHO else if (GET_CODE (x) == LO_SUM && GET_CODE (XEXP (x, 0)) == REG && CONSTANT_P (XEXP (x, 1))) { fprintf (file, "lo16("); output_addr_const (file, XEXP (x, 1)); fprintf (file, ")(%s)", reg_names[ REGNO (XEXP (x, 0)) ]); } #endif else if (legitimate_constant_pool_address_p (x)) { output_addr_const (file, XEXP (x, 1)); fprintf (file, "(%s)", reg_names[REGNO (XEXP (x, 0))]); } else gcc_unreachable (); } /* Implement OUTPUT_ADDR_CONST_EXTRA for address X. */ bool rs6000_output_addr_const_extra (FILE *file, rtx x) { if (GET_CODE (x) == UNSPEC) switch (XINT (x, 1)) { case UNSPEC_TOCREL: x = XVECEXP (x, 0, 0); gcc_assert (GET_CODE (x) == SYMBOL_REF); output_addr_const (file, x); if (!TARGET_AIX || (TARGET_ELF && TARGET_MINIMAL_TOC)) { putc ('-', file); assemble_name (file, toc_label_name); } else if (TARGET_ELF) fputs ("@toc", file); return true; #if TARGET_MACHO case UNSPEC_MACHOPIC_OFFSET: output_addr_const (file, XVECEXP (x, 0, 0)); putc ('-', file); machopic_output_function_base_name (file); return true; #endif } return false; } /* Target hook for assembling integer objects. The PowerPC version has to handle fixup entries for relocatable code if RELOCATABLE_NEEDS_FIXUP is defined. It also needs to handle DI-mode objects on 64-bit targets. */ static bool rs6000_assemble_integer (rtx x, unsigned int size, int aligned_p) { #ifdef RELOCATABLE_NEEDS_FIXUP /* Special handling for SI values. */ if (RELOCATABLE_NEEDS_FIXUP && size == 4 && aligned_p) { static int recurse = 0; /* For -mrelocatable, we mark all addresses that need to be fixed up in the .fixup section. */ if (TARGET_RELOCATABLE && in_section != toc_section && in_section != text_section && !unlikely_text_section_p (in_section) && !recurse && GET_CODE (x) != CONST_INT && GET_CODE (x) != CONST_DOUBLE && CONSTANT_P (x)) { char buf[256]; recurse = 1; ASM_GENERATE_INTERNAL_LABEL (buf, "LCP", fixuplabelno); fixuplabelno++; ASM_OUTPUT_LABEL (asm_out_file, buf); fprintf (asm_out_file, "\t.long\t("); output_addr_const (asm_out_file, x); fprintf (asm_out_file, ")@fixup\n"); fprintf (asm_out_file, "\t.section\t\".fixup\",\"aw\"\n"); ASM_OUTPUT_ALIGN (asm_out_file, 2); fprintf (asm_out_file, "\t.long\t"); assemble_name (asm_out_file, buf); fprintf (asm_out_file, "\n\t.previous\n"); recurse = 0; return true; } /* Remove initial .'s to turn a -mcall-aixdesc function address into the address of the descriptor, not the function itself. */ else if (GET_CODE (x) == SYMBOL_REF && XSTR (x, 0)[0] == '.' && DEFAULT_ABI == ABI_AIX) { const char *name = XSTR (x, 0); while (*name == '.') name++; fprintf (asm_out_file, "\t.long\t%s\n", name); return true; } } #endif /* RELOCATABLE_NEEDS_FIXUP */ return default_assemble_integer (x, size, aligned_p); } #ifdef HAVE_GAS_HIDDEN /* Emit an assembler directive to set symbol visibility for DECL to VISIBILITY_TYPE. */ static void rs6000_assemble_visibility (tree decl, int vis) { /* Functions need to have their entry point symbol visibility set as well as their descriptor symbol visibility. */ if (DEFAULT_ABI == ABI_AIX && DOT_SYMBOLS && TREE_CODE (decl) == FUNCTION_DECL) { static const char * const visibility_types[] = { NULL, "internal", "hidden", "protected" }; const char *name, *type; name = ((* targetm.strip_name_encoding) (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)))); type = visibility_types[vis]; fprintf (asm_out_file, "\t.%s\t%s\n", type, name); fprintf (asm_out_file, "\t.%s\t.%s\n", type, name); } else default_assemble_visibility (decl, vis); } #endif enum rtx_code rs6000_reverse_condition (enum machine_mode mode, enum rtx_code code) { /* Reversal of FP compares takes care -- an ordered compare becomes an unordered compare and vice versa. */ if (mode == CCFPmode && (!flag_finite_math_only || code == UNLT || code == UNLE || code == UNGT || code == UNGE || code == UNEQ || code == LTGT)) return reverse_condition_maybe_unordered (code); else return reverse_condition (code); } /* Generate a compare for CODE. Return a brand-new rtx that represents the result of the compare. */ static rtx rs6000_generate_compare (rtx cmp, enum machine_mode mode) { enum machine_mode comp_mode; rtx compare_result; enum rtx_code code = GET_CODE (cmp); rtx op0 = XEXP (cmp, 0); rtx op1 = XEXP (cmp, 1); if (FLOAT_MODE_P (mode)) comp_mode = CCFPmode; else if (code == GTU || code == LTU || code == GEU || code == LEU) comp_mode = CCUNSmode; else if ((code == EQ || code == NE) && GET_CODE (op0) == SUBREG && GET_CODE (op1) == SUBREG && SUBREG_PROMOTED_UNSIGNED_P (op0) && SUBREG_PROMOTED_UNSIGNED_P (op1)) /* These are unsigned values, perhaps there will be a later ordering compare that can be shared with this one. Unfortunately we cannot detect the signedness of the operands for non-subregs. */ comp_mode = CCUNSmode; else comp_mode = CCmode; /* First, the compare. */ compare_result = gen_reg_rtx (comp_mode); /* E500 FP compare instructions on the GPRs. Yuck! */ if ((!TARGET_FPRS && TARGET_HARD_FLOAT) && FLOAT_MODE_P (mode)) { rtx cmp, or_result, compare_result2; enum machine_mode op_mode = GET_MODE (op0); if (op_mode == VOIDmode) op_mode = GET_MODE (op1); /* The E500 FP compare instructions toggle the GT bit (CR bit 1) only. This explains the following mess. */ switch (code) { case EQ: case UNEQ: case NE: case LTGT: switch (op_mode) { case SFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tstsfeq_gpr (compare_result, op0, op1) : gen_cmpsfeq_gpr (compare_result, op0, op1); break; case DFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tstdfeq_gpr (compare_result, op0, op1) : gen_cmpdfeq_gpr (compare_result, op0, op1); break; case TFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tsttfeq_gpr (compare_result, op0, op1) : gen_cmptfeq_gpr (compare_result, op0, op1); break; default: gcc_unreachable (); } break; case GT: case GTU: case UNGT: case UNGE: case GE: case GEU: switch (op_mode) { case SFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tstsfgt_gpr (compare_result, op0, op1) : gen_cmpsfgt_gpr (compare_result, op0, op1); break; case DFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tstdfgt_gpr (compare_result, op0, op1) : gen_cmpdfgt_gpr (compare_result, op0, op1); break; case TFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tsttfgt_gpr (compare_result, op0, op1) : gen_cmptfgt_gpr (compare_result, op0, op1); break; default: gcc_unreachable (); } break; case LT: case LTU: case UNLT: case UNLE: case LE: case LEU: switch (op_mode) { case SFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tstsflt_gpr (compare_result, op0, op1) : gen_cmpsflt_gpr (compare_result, op0, op1); break; case DFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tstdflt_gpr (compare_result, op0, op1) : gen_cmpdflt_gpr (compare_result, op0, op1); break; case TFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tsttflt_gpr (compare_result, op0, op1) : gen_cmptflt_gpr (compare_result, op0, op1); break; default: gcc_unreachable (); } break; default: gcc_unreachable (); } /* Synthesize LE and GE from LT/GT || EQ. */ if (code == LE || code == GE || code == LEU || code == GEU) { emit_insn (cmp); switch (code) { case LE: code = LT; break; case GE: code = GT; break; case LEU: code = LT; break; case GEU: code = GT; break; default: gcc_unreachable (); } compare_result2 = gen_reg_rtx (CCFPmode); /* Do the EQ. */ switch (op_mode) { case SFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tstsfeq_gpr (compare_result2, op0, op1) : gen_cmpsfeq_gpr (compare_result2, op0, op1); break; case DFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tstdfeq_gpr (compare_result2, op0, op1) : gen_cmpdfeq_gpr (compare_result2, op0, op1); break; case TFmode: cmp = (flag_finite_math_only && !flag_trapping_math) ? gen_tsttfeq_gpr (compare_result2, op0, op1) : gen_cmptfeq_gpr (compare_result2, op0, op1); break; default: gcc_unreachable (); } emit_insn (cmp); /* OR them together. */ or_result = gen_reg_rtx (CCFPmode); cmp = gen_e500_cr_ior_compare (or_result, compare_result, compare_result2); compare_result = or_result; code = EQ; } else { if (code == NE || code == LTGT) code = NE; else code = EQ; } emit_insn (cmp); } else { /* Generate XLC-compatible TFmode compare as PARALLEL with extra CLOBBERs to match cmptf_internal2 pattern. */ if (comp_mode == CCFPmode && TARGET_XL_COMPAT && GET_MODE (op0) == TFmode && !TARGET_IEEEQUAD && TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_LONG_DOUBLE_128) emit_insn (gen_rtx_PARALLEL (VOIDmode, gen_rtvec (9, gen_rtx_SET (VOIDmode, compare_result, gen_rtx_COMPARE (comp_mode, op0, op1)), gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (DFmode)), gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (DFmode)), gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (DFmode)), gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (DFmode)), gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (DFmode)), gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (DFmode)), gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (DFmode)), gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (DFmode))))); else if (GET_CODE (op1) == UNSPEC && XINT (op1, 1) == UNSPEC_SP_TEST) { rtx op1b = XVECEXP (op1, 0, 0); comp_mode = CCEQmode; compare_result = gen_reg_rtx (CCEQmode); if (TARGET_64BIT) emit_insn (gen_stack_protect_testdi (compare_result, op0, op1b)); else emit_insn (gen_stack_protect_testsi (compare_result, op0, op1b)); } else emit_insn (gen_rtx_SET (VOIDmode, compare_result, gen_rtx_COMPARE (comp_mode, op0, op1))); } /* Some kinds of FP comparisons need an OR operation; under flag_finite_math_only we don't bother. */ if (FLOAT_MODE_P (mode) && !flag_finite_math_only && !(TARGET_HARD_FLOAT && !TARGET_FPRS) && (code == LE || code == GE || code == UNEQ || code == LTGT || code == UNGT || code == UNLT)) { enum rtx_code or1, or2; rtx or1_rtx, or2_rtx, compare2_rtx; rtx or_result = gen_reg_rtx (CCEQmode); switch (code) { case LE: or1 = LT; or2 = EQ; break; case GE: or1 = GT; or2 = EQ; break; case UNEQ: or1 = UNORDERED; or2 = EQ; break; case LTGT: or1 = LT; or2 = GT; break; case UNGT: or1 = UNORDERED; or2 = GT; break; case UNLT: or1 = UNORDERED; or2 = LT; break; default: gcc_unreachable (); } validate_condition_mode (or1, comp_mode); validate_condition_mode (or2, comp_mode); or1_rtx = gen_rtx_fmt_ee (or1, SImode, compare_result, const0_rtx); or2_rtx = gen_rtx_fmt_ee (or2, SImode, compare_result, const0_rtx); compare2_rtx = gen_rtx_COMPARE (CCEQmode, gen_rtx_IOR (SImode, or1_rtx, or2_rtx), const_true_rtx); emit_insn (gen_rtx_SET (VOIDmode, or_result, compare2_rtx)); compare_result = or_result; code = EQ; } validate_condition_mode (code, GET_MODE (compare_result)); return gen_rtx_fmt_ee (code, VOIDmode, compare_result, const0_rtx); } /* Emit the RTL for an sCOND pattern. */ void rs6000_emit_sISEL (enum machine_mode mode, rtx operands[]) { rtx condition_rtx; enum machine_mode op_mode; enum rtx_code cond_code; rtx result = operands[0]; condition_rtx = rs6000_generate_compare (operands[1], mode); cond_code = GET_CODE (condition_rtx); op_mode = GET_MODE (XEXP (operands[1], 0)); if (op_mode == VOIDmode) op_mode = GET_MODE (XEXP (operands[1], 1)); if (TARGET_POWERPC64 && GET_MODE (result) == DImode) { PUT_MODE (condition_rtx, DImode); if (cond_code == GEU || cond_code == GTU || cond_code == LEU || cond_code == LTU) emit_insn (gen_isel_unsigned_di (result, condition_rtx, force_reg (DImode, const1_rtx), force_reg (DImode, const0_rtx), XEXP (condition_rtx, 0))); else emit_insn (gen_isel_signed_di (result, condition_rtx, force_reg (DImode, const1_rtx), force_reg (DImode, const0_rtx), XEXP (condition_rtx, 0))); } else { PUT_MODE (condition_rtx, SImode); if (cond_code == GEU || cond_code == GTU || cond_code == LEU || cond_code == LTU) emit_insn (gen_isel_unsigned_si (result, condition_rtx, force_reg (SImode, const1_rtx), force_reg (SImode, const0_rtx), XEXP (condition_rtx, 0))); else emit_insn (gen_isel_signed_si (result, condition_rtx, force_reg (SImode, const1_rtx), force_reg (SImode, const0_rtx), XEXP (condition_rtx, 0))); } } void rs6000_emit_sCOND (enum machine_mode mode, rtx operands[]) { rtx condition_rtx; enum machine_mode op_mode; enum rtx_code cond_code; rtx result = operands[0]; if (TARGET_ISEL && (mode == SImode || mode == DImode)) { rs6000_emit_sISEL (mode, operands); return; } condition_rtx = rs6000_generate_compare (operands[1], mode); cond_code = GET_CODE (condition_rtx); if (FLOAT_MODE_P (mode) && !TARGET_FPRS && TARGET_HARD_FLOAT) { rtx t; PUT_MODE (condition_rtx, SImode); t = XEXP (condition_rtx, 0); gcc_assert (cond_code == NE || cond_code == EQ); if (cond_code == NE) emit_insn (gen_e500_flip_gt_bit (t, t)); emit_insn (gen_move_from_CR_gt_bit (result, t)); return; } if (cond_code == NE || cond_code == GE || cond_code == LE || cond_code == GEU || cond_code == LEU || cond_code == ORDERED || cond_code == UNGE || cond_code == UNLE) { rtx not_result = gen_reg_rtx (CCEQmode); rtx not_op, rev_cond_rtx; enum machine_mode cc_mode; cc_mode = GET_MODE (XEXP (condition_rtx, 0)); rev_cond_rtx = gen_rtx_fmt_ee (rs6000_reverse_condition (cc_mode, cond_code), SImode, XEXP (condition_rtx, 0), const0_rtx); not_op = gen_rtx_COMPARE (CCEQmode, rev_cond_rtx, const0_rtx); emit_insn (gen_rtx_SET (VOIDmode, not_result, not_op)); condition_rtx = gen_rtx_EQ (VOIDmode, not_result, const0_rtx); } op_mode = GET_MODE (XEXP (operands[1], 0)); if (op_mode == VOIDmode) op_mode = GET_MODE (XEXP (operands[1], 1)); if (TARGET_POWERPC64 && (op_mode == DImode || FLOAT_MODE_P (mode))) { PUT_MODE (condition_rtx, DImode); convert_move (result, condition_rtx, 0); } else { PUT_MODE (condition_rtx, SImode); emit_insn (gen_rtx_SET (VOIDmode, result, condition_rtx)); } } /* Emit a branch of kind CODE to location LOC. */ void rs6000_emit_cbranch (enum machine_mode mode, rtx operands[]) { rtx condition_rtx, loc_ref; condition_rtx = rs6000_generate_compare (operands[0], mode); loc_ref = gen_rtx_LABEL_REF (VOIDmode, operands[3]); emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, gen_rtx_IF_THEN_ELSE (VOIDmode, condition_rtx, loc_ref, pc_rtx))); } /* Return the string to output a conditional branch to LABEL, which is the operand number of the label, or -1 if the branch is really a conditional return. OP is the conditional expression. XEXP (OP, 0) is assumed to be a condition code register and its mode specifies what kind of comparison we made. REVERSED is nonzero if we should reverse the sense of the comparison. INSN is the insn. */ char * output_cbranch (rtx op, const char *label, int reversed, rtx insn) { static char string[64]; enum rtx_code code = GET_CODE (op); rtx cc_reg = XEXP (op, 0); enum machine_mode mode = GET_MODE (cc_reg); int cc_regno = REGNO (cc_reg) - CR0_REGNO; int need_longbranch = label != NULL && get_attr_length (insn) == 8; int really_reversed = reversed ^ need_longbranch; char *s = string; const char *ccode; const char *pred; rtx note; validate_condition_mode (code, mode); /* Work out which way this really branches. We could use reverse_condition_maybe_unordered here always but this makes the resulting assembler clearer. */ if (really_reversed) { /* Reversal of FP compares takes care -- an ordered compare becomes an unordered compare and vice versa. */ if (mode == CCFPmode) code = reverse_condition_maybe_unordered (code); else code = reverse_condition (code); } if ((!TARGET_FPRS && TARGET_HARD_FLOAT) && mode == CCFPmode) { /* The efscmp/tst* instructions twiddle bit 2, which maps nicely to the GT bit. */ switch (code) { case EQ: /* Opposite of GT. */ code = GT; break; case NE: code = UNLE; break; default: gcc_unreachable (); } } switch (code) { /* Not all of these are actually distinct opcodes, but we distinguish them for clarity of the resulting assembler. */ case NE: case LTGT: ccode = "ne"; break; case EQ: case UNEQ: ccode = "eq"; break; case GE: case GEU: ccode = "ge"; break; case GT: case GTU: case UNGT: ccode = "gt"; break; case LE: case LEU: ccode = "le"; break; case LT: case LTU: case UNLT: ccode = "lt"; break; case UNORDERED: ccode = "un"; break; case ORDERED: ccode = "nu"; break; case UNGE: ccode = "nl"; break; case UNLE: ccode = "ng"; break; default: gcc_unreachable (); } /* Maybe we have a guess as to how likely the branch is. The old mnemonics don't have a way to specify this information. */ pred = ""; note = find_reg_note (insn, REG_BR_PROB, NULL_RTX); if (note != NULL_RTX) { /* PROB is the difference from 50%. */ int prob = INTVAL (XEXP (note, 0)) - REG_BR_PROB_BASE / 2; /* Only hint for highly probable/improbable branches on newer cpus as static prediction overrides processor dynamic prediction. For older cpus we may as well always hint, but assume not taken for branches that are very close to 50% as a mispredicted taken branch is more expensive than a mispredicted not-taken branch. */ if (rs6000_always_hint || (abs (prob) > REG_BR_PROB_BASE / 100 * 48 && br_prob_note_reliable_p (note))) { if (abs (prob) > REG_BR_PROB_BASE / 20 && ((prob > 0) ^ need_longbranch)) pred = "+"; else pred = "-"; } } if (label == NULL) s += sprintf (s, "{b%sr|b%slr%s} ", ccode, ccode, pred); else s += sprintf (s, "{b%s|b%s%s} ", ccode, ccode, pred); /* We need to escape any '%' characters in the reg_names string. Assume they'd only be the first character.... */ if (reg_names[cc_regno + CR0_REGNO][0] == '%') *s++ = '%'; s += sprintf (s, "%s", reg_names[cc_regno + CR0_REGNO]); if (label != NULL) { /* If the branch distance was too far, we may have to use an unconditional branch to go the distance. */ if (need_longbranch) s += sprintf (s, ",$+8\n\tb %s", label); else s += sprintf (s, ",%s", label); } return string; } /* Return the string to flip the GT bit on a CR. */ char * output_e500_flip_gt_bit (rtx dst, rtx src) { static char string[64]; int a, b; gcc_assert (GET_CODE (dst) == REG && CR_REGNO_P (REGNO (dst)) && GET_CODE (src) == REG && CR_REGNO_P (REGNO (src))); /* GT bit. */ a = 4 * (REGNO (dst) - CR0_REGNO) + 1; b = 4 * (REGNO (src) - CR0_REGNO) + 1; sprintf (string, "crnot %d,%d", a, b); return string; } /* Return insn for VSX or Altivec comparisons. */ static rtx rs6000_emit_vector_compare_inner (enum rtx_code code, rtx op0, rtx op1) { rtx mask; enum machine_mode mode = GET_MODE (op0); switch (code) { default: break; case GE: if (GET_MODE_CLASS (mode) == MODE_VECTOR_INT) return NULL_RTX; case EQ: case GT: case GTU: mask = gen_reg_rtx (mode); emit_insn (gen_rtx_SET (VOIDmode, mask, gen_rtx_fmt_ee (code, mode, op0, op1))); return mask; } return NULL_RTX; } /* Emit vector compare for operands OP0 and OP1 using code RCODE. DMODE is expected destination mode. This is a recursive function. */ static rtx rs6000_emit_vector_compare (enum rtx_code rcode, rtx op0, rtx op1, enum machine_mode dmode) { rtx mask; bool swap_operands = false; bool try_again = false; gcc_assert (VECTOR_UNIT_ALTIVEC_OR_VSX_P (dmode)); gcc_assert (GET_MODE (op0) == GET_MODE (op1)); /* See if the comparison works as is. */ mask = rs6000_emit_vector_compare_inner (rcode, op0, op1); if (mask) return mask; switch (rcode) { case LT: rcode = GT; swap_operands = true; try_again = true; break; case LTU: rcode = GTU; swap_operands = true; try_again = true; break; case NE: case UNLE: case UNLT: case UNGE: case UNGT: /* Invert condition and try again. e.g., A != B becomes ~(A==B). */ { enum rtx_code rev_code; enum insn_code nor_code; rtx mask2; rev_code = reverse_condition_maybe_unordered (rcode); if (rev_code == UNKNOWN) return NULL_RTX; nor_code = optab_handler (one_cmpl_optab, (int)dmode)->insn_code; if (nor_code == CODE_FOR_nothing) return NULL_RTX; mask2 = rs6000_emit_vector_compare (rev_code, op0, op1, dmode); if (!mask2) return NULL_RTX; mask = gen_reg_rtx (dmode); emit_insn (GEN_FCN (nor_code) (mask, mask2)); return mask; } break; case GE: case GEU: case LE: case LEU: /* Try GT/GTU/LT/LTU OR EQ */ { rtx c_rtx, eq_rtx; enum insn_code ior_code; enum rtx_code new_code; switch (rcode) { case GE: new_code = GT; break; case GEU: new_code = GTU; break; case LE: new_code = LT; break; case LEU: new_code = LTU; break; default: gcc_unreachable (); } ior_code = optab_handler (ior_optab, (int)dmode)->insn_code; if (ior_code == CODE_FOR_nothing) return NULL_RTX; c_rtx = rs6000_emit_vector_compare (new_code, op0, op1, dmode); if (!c_rtx) return NULL_RTX; eq_rtx = rs6000_emit_vector_compare (EQ, op0, op1, dmode); if (!eq_rtx) return NULL_RTX; mask = gen_reg_rtx (dmode); emit_insn (GEN_FCN (ior_code) (mask, c_rtx, eq_rtx)); return mask; } break; default: return NULL_RTX; } if (try_again) { if (swap_operands) { rtx tmp; tmp = op0; op0 = op1; op1 = tmp; } mask = rs6000_emit_vector_compare_inner (rcode, op0, op1); if (mask) return mask; } /* You only get two chances. */ return NULL_RTX; } /* Emit vector conditional expression. DEST is destination. OP_TRUE and OP_FALSE are two VEC_COND_EXPR operands. CC_OP0 and CC_OP1 are the two operands for the relation operation COND. */ int rs6000_emit_vector_cond_expr (rtx dest, rtx op_true, rtx op_false, rtx cond, rtx cc_op0, rtx cc_op1) { enum machine_mode dest_mode = GET_MODE (dest); enum rtx_code rcode = GET_CODE (cond); enum machine_mode cc_mode = CCmode; rtx mask; rtx cond2; rtx tmp; bool invert_move = false; if (VECTOR_UNIT_NONE_P (dest_mode)) return 0; switch (rcode) { /* Swap operands if we can, and fall back to doing the operation as specified, and doing a NOR to invert the test. */ case NE: case UNLE: case UNLT: case UNGE: case UNGT: /* Invert condition and try again. e.g., A = (B != C) ? D : E becomes A = (B == C) ? E : D. */ invert_move = true; rcode = reverse_condition_maybe_unordered (rcode); if (rcode == UNKNOWN) return 0; break; /* Mark unsigned tests with CCUNSmode. */ case GTU: case GEU: case LTU: case LEU: cc_mode = CCUNSmode; break; default: break; } /* Get the vector mask for the given relational operations. */ mask = rs6000_emit_vector_compare (rcode, cc_op0, cc_op1, dest_mode); if (!mask) return 0; if (invert_move) { tmp = op_true; op_true = op_false; op_false = tmp; } cond2 = gen_rtx_fmt_ee (NE, cc_mode, mask, const0_rtx); emit_insn (gen_rtx_SET (VOIDmode, dest, gen_rtx_IF_THEN_ELSE (dest_mode, cond2, op_true, op_false))); return 1; } /* Emit a conditional move: move TRUE_COND to DEST if OP of the operands of the last comparison is nonzero/true, FALSE_COND if it is zero/false. Return 0 if the hardware has no such operation. */ int rs6000_emit_cmove (rtx dest, rtx op, rtx true_cond, rtx false_cond) { enum rtx_code code = GET_CODE (op); rtx op0 = XEXP (op, 0); rtx op1 = XEXP (op, 1); REAL_VALUE_TYPE c1; enum machine_mode compare_mode = GET_MODE (op0); enum machine_mode result_mode = GET_MODE (dest); rtx temp; bool is_against_zero; /* These modes should always match. */ if (GET_MODE (op1) != compare_mode /* In the isel case however, we can use a compare immediate, so op1 may be a small constant. */ && (!TARGET_ISEL || !short_cint_operand (op1, VOIDmode))) return 0; if (GET_MODE (true_cond) != result_mode) return 0; if (GET_MODE (false_cond) != result_mode) return 0; /* First, work out if the hardware can do this at all, or if it's too slow.... */ if (!FLOAT_MODE_P (compare_mode)) { if (TARGET_ISEL) return rs6000_emit_int_cmove (dest, op, true_cond, false_cond); return 0; } else if (TARGET_HARD_FLOAT && !TARGET_FPRS && SCALAR_FLOAT_MODE_P (compare_mode)) return 0; is_against_zero = op1 == CONST0_RTX (compare_mode); /* A floating-point subtract might overflow, underflow, or produce an inexact result, thus changing the floating-point flags, so it can't be generated if we care about that. It's safe if one side of the construct is zero, since then no subtract will be generated. */ if (SCALAR_FLOAT_MODE_P (compare_mode) && flag_trapping_math && ! is_against_zero) return 0; /* Eliminate half of the comparisons by switching operands, this makes the remaining code simpler. */ if (code == UNLT || code == UNGT || code == UNORDERED || code == NE || code == LTGT || code == LT || code == UNLE) { code = reverse_condition_maybe_unordered (code); temp = true_cond; true_cond = false_cond; false_cond = temp; } /* UNEQ and LTGT take four instructions for a comparison with zero, it'll probably be faster to use a branch here too. */ if (code == UNEQ && HONOR_NANS (compare_mode)) return 0; if (GET_CODE (op1) == CONST_DOUBLE) REAL_VALUE_FROM_CONST_DOUBLE (c1, op1); /* We're going to try to implement comparisons by performing a subtract, then comparing against zero. Unfortunately, Inf - Inf is NaN which is not zero, and so if we don't know that the operand is finite and the comparison would treat EQ different to UNORDERED, we can't do it. */ if (HONOR_INFINITIES (compare_mode) && code != GT && code != UNGE && (GET_CODE (op1) != CONST_DOUBLE || real_isinf (&c1)) /* Constructs of the form (a OP b ? a : b) are safe. */ && ((! rtx_equal_p (op0, false_cond) && ! rtx_equal_p (op1, false_cond)) || (! rtx_equal_p (op0, true_cond) && ! rtx_equal_p (op1, true_cond)))) return 0; /* At this point we know we can use fsel. */ /* Reduce the comparison to a comparison against zero. */ if (! is_against_zero) { temp = gen_reg_rtx (compare_mode); emit_insn (gen_rtx_SET (VOIDmode, temp, gen_rtx_MINUS (compare_mode, op0, op1))); op0 = temp; op1 = CONST0_RTX (compare_mode); } /* If we don't care about NaNs we can reduce some of the comparisons down to faster ones. */ if (! HONOR_NANS (compare_mode)) switch (code) { case GT: code = LE; temp = true_cond; true_cond = false_cond; false_cond = temp; break; case UNGE: code = GE; break; case UNEQ: code = EQ; break; default: break; } /* Now, reduce everything down to a GE. */ switch (code) { case GE: break; case LE: temp = gen_reg_rtx (compare_mode); emit_insn (gen_rtx_SET (VOIDmode, temp, gen_rtx_NEG (compare_mode, op0))); op0 = temp; break; case ORDERED: temp = gen_reg_rtx (compare_mode); emit_insn (gen_rtx_SET (VOIDmode, temp, gen_rtx_ABS (compare_mode, op0))); op0 = temp; break; case EQ: temp = gen_reg_rtx (compare_mode); emit_insn (gen_rtx_SET (VOIDmode, temp, gen_rtx_NEG (compare_mode, gen_rtx_ABS (compare_mode, op0)))); op0 = temp; break; case UNGE: /* a UNGE 0 <-> (a GE 0 || -a UNLT 0) */ temp = gen_reg_rtx (result_mode); emit_insn (gen_rtx_SET (VOIDmode, temp, gen_rtx_IF_THEN_ELSE (result_mode, gen_rtx_GE (VOIDmode, op0, op1), true_cond, false_cond))); false_cond = true_cond; true_cond = temp; temp = gen_reg_rtx (compare_mode); emit_insn (gen_rtx_SET (VOIDmode, temp, gen_rtx_NEG (compare_mode, op0))); op0 = temp; break; case GT: /* a GT 0 <-> (a GE 0 && -a UNLT 0) */ temp = gen_reg_rtx (result_mode); emit_insn (gen_rtx_SET (VOIDmode, temp, gen_rtx_IF_THEN_ELSE (result_mode, gen_rtx_GE (VOIDmode, op0, op1), true_cond, false_cond))); true_cond = false_cond; false_cond = temp; temp = gen_reg_rtx (compare_mode); emit_insn (gen_rtx_SET (VOIDmode, temp, gen_rtx_NEG (compare_mode, op0))); op0 = temp; break; default: gcc_unreachable (); } emit_insn (gen_rtx_SET (VOIDmode, dest, gen_rtx_IF_THEN_ELSE (result_mode, gen_rtx_GE (VOIDmode, op0, op1), true_cond, false_cond))); return 1; } /* Same as above, but for ints (isel). */ static int rs6000_emit_int_cmove (rtx dest, rtx op, rtx true_cond, rtx false_cond) { rtx condition_rtx, cr; enum machine_mode mode = GET_MODE (dest); if (mode != SImode && (!TARGET_POWERPC64 || mode != DImode)) return 0; /* We still have to do the compare, because isel doesn't do a compare, it just looks at the CRx bits set by a previous compare instruction. */ condition_rtx = rs6000_generate_compare (op, mode); cr = XEXP (condition_rtx, 0); if (mode == SImode) { if (GET_MODE (cr) == CCmode) emit_insn (gen_isel_signed_si (dest, condition_rtx, true_cond, false_cond, cr)); else emit_insn (gen_isel_unsigned_si (dest, condition_rtx, true_cond, false_cond, cr)); } else { if (GET_MODE (cr) == CCmode) emit_insn (gen_isel_signed_di (dest, condition_rtx, true_cond, false_cond, cr)); else emit_insn (gen_isel_unsigned_di (dest, condition_rtx, true_cond, false_cond, cr)); } return 1; } const char * output_isel (rtx *operands) { enum rtx_code code; code = GET_CODE (operands[1]); if (code == GE || code == GEU || code == LE || code == LEU || code == NE) { PUT_CODE (operands[1], reverse_condition (code)); return "isel %0,%3,%2,%j1"; } else return "isel %0,%2,%3,%j1"; } void rs6000_emit_minmax (rtx dest, enum rtx_code code, rtx op0, rtx op1) { enum machine_mode mode = GET_MODE (op0); enum rtx_code c; rtx target; /* VSX/altivec have direct min/max insns. */ if ((code == SMAX || code == SMIN) && VECTOR_UNIT_ALTIVEC_OR_VSX_P (mode)) { emit_insn (gen_rtx_SET (VOIDmode, dest, gen_rtx_fmt_ee (code, mode, op0, op1))); return; } if (code == SMAX || code == SMIN) c = GE; else c = GEU; if (code == SMAX || code == UMAX) target = emit_conditional_move (dest, c, op0, op1, mode, op0, op1, mode, 0); else target = emit_conditional_move (dest, c, op0, op1, mode, op1, op0, mode, 0); gcc_assert (target); if (target != dest) emit_move_insn (dest, target); } /* Emit instructions to perform a load-reserved/store-conditional operation. The operation performed is an atomic (set M (CODE:MODE M OP)) If not NULL, BEFORE is atomically set to M before the operation, and AFTER is set to M after the operation (that is, (CODE:MODE M OP)). If SYNC_P then a memory barrier is emitted before the operation. Either OP or M may be wrapped in a NOT operation. */ void rs6000_emit_sync (enum rtx_code code, enum machine_mode mode, rtx m, rtx op, rtx before_param, rtx after_param, bool sync_p) { enum machine_mode used_mode; rtx the_op, set_before, set_after, set_atomic, cc_scratch, before, after; rtx used_m; rtvec vec; HOST_WIDE_INT imask = GET_MODE_MASK (mode); rtx shift = NULL_RTX; if (sync_p) emit_insn (gen_lwsync ()); used_m = m; /* If this is smaller than SImode, we'll have to use SImode with adjustments. */ if (mode == QImode || mode == HImode) { rtx newop, oldop; if (MEM_ALIGN (used_m) >= 32) { int ishift = 0; if (BYTES_BIG_ENDIAN) ishift = GET_MODE_BITSIZE (SImode) - GET_MODE_BITSIZE (mode); shift = GEN_INT (ishift); used_m = change_address (used_m, SImode, 0); } else { rtx addrSI, aligned_addr; int shift_mask = mode == QImode ? 0x18 : 0x10; addrSI = gen_lowpart_common (SImode, force_reg (Pmode, XEXP (used_m, 0))); addrSI = force_reg (SImode, addrSI); shift = gen_reg_rtx (SImode); emit_insn (gen_rlwinm (shift, addrSI, GEN_INT (3), GEN_INT (shift_mask))); emit_insn (gen_xorsi3 (shift, shift, GEN_INT (shift_mask))); aligned_addr = expand_binop (Pmode, and_optab, XEXP (used_m, 0), GEN_INT (-4), NULL_RTX, 1, OPTAB_LIB_WIDEN); used_m = change_address (used_m, SImode, aligned_addr); set_mem_align (used_m, 32); } /* It's safe to keep the old alias set of USED_M, because the operation is atomic and only affects the original USED_M. */ m = used_m; if (GET_CODE (op) == NOT) { oldop = lowpart_subreg (SImode, XEXP (op, 0), mode); oldop = gen_rtx_NOT (SImode, oldop); } else oldop = lowpart_subreg (SImode, op, mode); switch (code) { case IOR: case XOR: newop = expand_binop (SImode, and_optab, oldop, GEN_INT (imask), NULL_RTX, 1, OPTAB_LIB_WIDEN); emit_insn (gen_ashlsi3 (newop, newop, shift)); break; case NOT: /* NAND */ newop = expand_binop (SImode, ior_optab, oldop, GEN_INT (~imask), NULL_RTX, 1, OPTAB_LIB_WIDEN); emit_insn (gen_rotlsi3 (newop, newop, shift)); break; case AND: newop = expand_binop (SImode, ior_optab, oldop, GEN_INT (~imask), NULL_RTX, 1, OPTAB_LIB_WIDEN); emit_insn (gen_rotlsi3 (newop, newop, shift)); break; case PLUS: case MINUS: { rtx mask; newop = expand_binop (SImode, and_optab, oldop, GEN_INT (imask), NULL_RTX, 1, OPTAB_LIB_WIDEN); emit_insn (gen_ashlsi3 (newop, newop, shift)); mask = gen_reg_rtx (SImode); emit_move_insn (mask, GEN_INT (imask)); emit_insn (gen_ashlsi3 (mask, mask, shift)); if (code == PLUS) newop = gen_rtx_PLUS (SImode, m, newop); else newop = gen_rtx_MINUS (SImode, m, newop); newop = gen_rtx_AND (SImode, newop, mask); newop = gen_rtx_IOR (SImode, newop, gen_rtx_AND (SImode, gen_rtx_NOT (SImode, mask), m)); break; } default: gcc_unreachable (); } op = newop; used_mode = SImode; before = gen_reg_rtx (used_mode); after = gen_reg_rtx (used_mode); } else { used_mode = mode; before = before_param; after = after_param; if (before == NULL_RTX) before = gen_reg_rtx (used_mode); if (after == NULL_RTX) after = gen_reg_rtx (used_mode); } if ((code == PLUS || code == MINUS) && used_mode != mode) the_op = op; /* Computed above. */ else if (GET_CODE (op) == NOT && GET_CODE (m) != NOT) the_op = gen_rtx_fmt_ee (code, used_mode, op, m); else if (code == NOT) the_op = gen_rtx_fmt_ee (IOR, used_mode, gen_rtx_NOT (used_mode, m), gen_rtx_NOT (used_mode, op)); else the_op = gen_rtx_fmt_ee (code, used_mode, m, op); set_after = gen_rtx_SET (VOIDmode, after, the_op); set_before = gen_rtx_SET (VOIDmode, before, used_m); set_atomic = gen_rtx_SET (VOIDmode, used_m, gen_rtx_UNSPEC (used_mode, gen_rtvec (1, the_op), UNSPEC_SYNC_OP)); cc_scratch = gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (CCmode)); if ((code == PLUS || code == MINUS) && used_mode != mode) vec = gen_rtvec (5, set_after, set_before, set_atomic, cc_scratch, gen_rtx_CLOBBER (VOIDmode, gen_rtx_SCRATCH (SImode))); else vec = gen_rtvec (4, set_after, set_before, set_atomic, cc_scratch); emit_insn (gen_rtx_PARALLEL (VOIDmode, vec)); /* Shift and mask the return values properly. */ if (used_mode != mode && before_param) { emit_insn (gen_lshrsi3 (before, before, shift)); convert_move (before_param, before, 1); } if (used_mode != mode && after_param) { emit_insn (gen_lshrsi3 (after, after, shift)); convert_move (after_param, after, 1); } /* The previous sequence will end with a branch that's dependent on the conditional store, so placing an isync will ensure that no other instructions (especially, no load or store instructions) can start before the atomic operation completes. */ if (sync_p) emit_insn (gen_isync ()); } /* A subroutine of the atomic operation splitters. Jump to LABEL if COND is true. Mark the jump as unlikely to be taken. */ static void emit_unlikely_jump (rtx cond, rtx label) { rtx very_unlikely = GEN_INT (REG_BR_PROB_BASE / 100 - 1); rtx x; x = gen_rtx_IF_THEN_ELSE (VOIDmode, cond, label, pc_rtx); x = emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, x)); add_reg_note (x, REG_BR_PROB, very_unlikely); } /* A subroutine of the atomic operation splitters. Emit a load-locked instruction in MODE. */ static void emit_load_locked (enum machine_mode mode, rtx reg, rtx mem) { rtx (*fn) (rtx, rtx) = NULL; if (mode == SImode) fn = gen_load_locked_si; else if (mode == DImode) fn = gen_load_locked_di; emit_insn (fn (reg, mem)); } /* A subroutine of the atomic operation splitters. Emit a store-conditional instruction in MODE. */ static void emit_store_conditional (enum machine_mode mode, rtx res, rtx mem, rtx val) { rtx (*fn) (rtx, rtx, rtx) = NULL; if (mode == SImode) fn = gen_store_conditional_si; else if (mode == DImode) fn = gen_store_conditional_di; /* Emit sync before stwcx. to address PPC405 Erratum. */ if (PPC405_ERRATUM77) emit_insn (gen_memory_barrier ()); emit_insn (fn (res, mem, val)); } /* Expand an atomic fetch-and-operate pattern. CODE is the binary operation to perform. MEM is the memory on which to operate. VAL is the second operand of the binary operator. BEFORE and AFTER are optional locations to return the value of MEM either before of after the operation. SCRATCH is a scratch register. */ void rs6000_split_atomic_op (enum rtx_code code, rtx mem, rtx val, rtx before, rtx after, rtx scratch) { enum machine_mode mode = GET_MODE (mem); rtx label, x, cond = gen_rtx_REG (CCmode, CR0_REGNO); emit_insn (gen_lwsync ()); label = gen_label_rtx (); emit_label (label); label = gen_rtx_LABEL_REF (VOIDmode, label); if (before == NULL_RTX) before = scratch; emit_load_locked (mode, before, mem); if (code == NOT) x = gen_rtx_IOR (mode, gen_rtx_NOT (mode, before), gen_rtx_NOT (mode, val)); else if (code == AND) x = gen_rtx_UNSPEC (mode, gen_rtvec (2, before, val), UNSPEC_AND); else x = gen_rtx_fmt_ee (code, mode, before, val); if (after != NULL_RTX) emit_insn (gen_rtx_SET (VOIDmode, after, copy_rtx (x))); emit_insn (gen_rtx_SET (VOIDmode, scratch, x)); emit_store_conditional (mode, cond, mem, scratch); x = gen_rtx_NE (VOIDmode, cond, const0_rtx); emit_unlikely_jump (x, label); emit_insn (gen_isync ()); } /* Expand an atomic compare and swap operation. MEM is the memory on which to operate. OLDVAL is the old value to be compared. NEWVAL is the new value to be stored. SCRATCH is a scratch GPR. */ void rs6000_split_compare_and_swap (rtx retval, rtx mem, rtx oldval, rtx newval, rtx scratch) { enum machine_mode mode = GET_MODE (mem); rtx label1, label2, x, cond = gen_rtx_REG (CCmode, CR0_REGNO); emit_insn (gen_lwsync ()); label1 = gen_rtx_LABEL_REF (VOIDmode, gen_label_rtx ()); label2 = gen_rtx_LABEL_REF (VOIDmode, gen_label_rtx ()); emit_label (XEXP (label1, 0)); emit_load_locked (mode, retval, mem); x = gen_rtx_COMPARE (CCmode, retval, oldval); emit_insn (gen_rtx_SET (VOIDmode, cond, x)); x = gen_rtx_NE (VOIDmode, cond, const0_rtx); emit_unlikely_jump (x, label2); emit_move_insn (scratch, newval); emit_store_conditional (mode, cond, mem, scratch); x = gen_rtx_NE (VOIDmode, cond, const0_rtx); emit_unlikely_jump (x, label1); emit_insn (gen_isync ()); emit_label (XEXP (label2, 0)); } /* Expand an atomic test and set operation. MEM is the memory on which to operate. VAL is the value set. SCRATCH is a scratch GPR. */ void rs6000_split_lock_test_and_set (rtx retval, rtx mem, rtx val, rtx scratch) { enum machine_mode mode = GET_MODE (mem); rtx label, x, cond = gen_rtx_REG (CCmode, CR0_REGNO); label = gen_rtx_LABEL_REF (VOIDmode, gen_label_rtx ()); emit_label (XEXP (label, 0)); emit_load_locked (mode, retval, mem); emit_move_insn (scratch, val); emit_store_conditional (mode, cond, mem, scratch); x = gen_rtx_NE (VOIDmode, cond, const0_rtx); emit_unlikely_jump (x, label); emit_insn (gen_isync ()); } void rs6000_expand_compare_and_swapqhi (rtx dst, rtx mem, rtx oldval, rtx newval) { enum machine_mode mode = GET_MODE (mem); rtx addrSI, align, wdst, shift, mask; HOST_WIDE_INT shift_mask = mode == QImode ? 0x18 : 0x10; HOST_WIDE_INT imask = GET_MODE_MASK (mode); /* Shift amount for subword relative to aligned word. */ addrSI = force_reg (GET_MODE (XEXP (mem, 0)), XEXP (mem, 0)); addrSI = force_reg (SImode, gen_lowpart_common (SImode, addrSI)); shift = gen_reg_rtx (SImode); emit_insn (gen_rlwinm (shift, addrSI, GEN_INT (3), GEN_INT (shift_mask))); emit_insn (gen_xorsi3 (shift, shift, GEN_INT (shift_mask))); /* Shift and mask old value into position within word. */ oldval = convert_modes (SImode, mode, oldval, 1); oldval = expand_binop (SImode, and_optab, oldval, GEN_INT (imask), NULL_RTX, 1, OPTAB_LIB_WIDEN); emit_insn (gen_ashlsi3 (oldval, oldval, shift)); /* Shift and mask new value into position within word. */ newval = convert_modes (SImode, mode, newval, 1); newval = expand_binop (SImode, and_optab, newval, GEN_INT (imask), NULL_RTX, 1, OPTAB_LIB_WIDEN); emit_insn (gen_ashlsi3 (newval, newval, shift)); /* Mask for insertion. */ mask = gen_reg_rtx (SImode); emit_move_insn (mask, GEN_INT (imask)); emit_insn (gen_ashlsi3 (mask, mask, shift)); /* Address of aligned word containing subword. */ align = expand_binop (Pmode, and_optab, XEXP (mem, 0), GEN_INT (-4), NULL_RTX, 1, OPTAB_LIB_WIDEN); mem = change_address (mem, SImode, align); set_mem_align (mem, 32); MEM_VOLATILE_P (mem) = 1; wdst = gen_reg_rtx (SImode); emit_insn (gen_sync_compare_and_swapqhi_internal (wdst, mask, oldval, newval, mem)); /* Shift the result back. */ emit_insn (gen_lshrsi3 (wdst, wdst, shift)); emit_move_insn (dst, gen_lowpart (mode, wdst)); } void rs6000_split_compare_and_swapqhi (rtx dest, rtx mask, rtx oldval, rtx newval, rtx mem, rtx scratch) { rtx label1, label2, x, cond = gen_rtx_REG (CCmode, CR0_REGNO); emit_insn (gen_lwsync ()); label1 = gen_rtx_LABEL_REF (VOIDmode, gen_label_rtx ()); label2 = gen_rtx_LABEL_REF (VOIDmode, gen_label_rtx ()); emit_label (XEXP (label1, 0)); emit_load_locked (SImode, scratch, mem); /* Mask subword within loaded value for comparison with oldval. Use UNSPEC_AND to avoid clobber.*/ emit_insn (gen_rtx_SET (SImode, dest, gen_rtx_UNSPEC (SImode, gen_rtvec (2, scratch, mask), UNSPEC_AND))); x = gen_rtx_COMPARE (CCmode, dest, oldval); emit_insn (gen_rtx_SET (VOIDmode, cond, x)); x = gen_rtx_NE (VOIDmode, cond, const0_rtx); emit_unlikely_jump (x, label2); /* Clear subword within loaded value for insertion of new value. */ emit_insn (gen_rtx_SET (SImode, scratch, gen_rtx_AND (SImode, gen_rtx_NOT (SImode, mask), scratch))); emit_insn (gen_iorsi3 (scratch, scratch, newval)); emit_store_conditional (SImode, cond, mem, scratch); x = gen_rtx_NE (VOIDmode, cond, const0_rtx); emit_unlikely_jump (x, label1); emit_insn (gen_isync ()); emit_label (XEXP (label2, 0)); } /* Emit instructions to move SRC to DST. Called by splitters for multi-register moves. It will emit at most one instruction for each register that is accessed; that is, it won't emit li/lis pairs (or equivalent for 64-bit code). One of SRC or DST must be a hard register. */ void rs6000_split_multireg_move (rtx dst, rtx src) { /* The register number of the first register being moved. */ int reg; /* The mode that is to be moved. */ enum machine_mode mode; /* The mode that the move is being done in, and its size. */ enum machine_mode reg_mode; int reg_mode_size; /* The number of registers that will be moved. */ int nregs; reg = REG_P (dst) ? REGNO (dst) : REGNO (src); mode = GET_MODE (dst); nregs = hard_regno_nregs[reg][mode]; if (FP_REGNO_P (reg)) reg_mode = DECIMAL_FLOAT_MODE_P (mode) ? DDmode : ((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode); else if (ALTIVEC_REGNO_P (reg)) reg_mode = V16QImode; else if (TARGET_E500_DOUBLE && mode == TFmode) reg_mode = DFmode; else reg_mode = word_mode; reg_mode_size = GET_MODE_SIZE (reg_mode); gcc_assert (reg_mode_size * nregs == GET_MODE_SIZE (mode)); if (REG_P (src) && REG_P (dst) && (REGNO (src) < REGNO (dst))) { /* Move register range backwards, if we might have destructive overlap. */ int i; for (i = nregs - 1; i >= 0; i--) emit_insn (gen_rtx_SET (VOIDmode, simplify_gen_subreg (reg_mode, dst, mode, i * reg_mode_size), simplify_gen_subreg (reg_mode, src, mode, i * reg_mode_size))); } else { int i; int j = -1; bool used_update = false; rtx restore_basereg = NULL_RTX; if (MEM_P (src) && INT_REGNO_P (reg)) { rtx breg; if (GET_CODE (XEXP (src, 0)) == PRE_INC || GET_CODE (XEXP (src, 0)) == PRE_DEC) { rtx delta_rtx; breg = XEXP (XEXP (src, 0), 0); delta_rtx = (GET_CODE (XEXP (src, 0)) == PRE_INC ? GEN_INT (GET_MODE_SIZE (GET_MODE (src))) : GEN_INT (-GET_MODE_SIZE (GET_MODE (src)))); emit_insn (gen_add3_insn (breg, breg, delta_rtx)); src = replace_equiv_address (src, breg); } else if (! rs6000_offsettable_memref_p (src)) { if (GET_CODE (XEXP (src, 0)) == PRE_MODIFY) { rtx basereg = XEXP (XEXP (src, 0), 0); if (TARGET_UPDATE) { rtx ndst = simplify_gen_subreg (reg_mode, dst, mode, 0); emit_insn (gen_rtx_SET (VOIDmode, ndst, gen_rtx_MEM (reg_mode, XEXP (src, 0)))); used_update = true; } else emit_insn (gen_rtx_SET (VOIDmode, basereg, XEXP (XEXP (src, 0), 1))); src = replace_equiv_address (src, basereg); } else { rtx basereg = gen_rtx_REG (Pmode, reg); emit_insn (gen_rtx_SET (VOIDmode, basereg, XEXP (src, 0))); src = replace_equiv_address (src, basereg); } } breg = XEXP (src, 0); if (GET_CODE (breg) == PLUS || GET_CODE (breg) == LO_SUM) breg = XEXP (breg, 0); /* If the base register we are using to address memory is also a destination reg, then change that register last. */ if (REG_P (breg) && REGNO (breg) >= REGNO (dst) && REGNO (breg) < REGNO (dst) + nregs) j = REGNO (breg) - REGNO (dst); } else if (MEM_P (dst) && INT_REGNO_P (reg)) { rtx breg; if (GET_CODE (XEXP (dst, 0)) == PRE_INC || GET_CODE (XEXP (dst, 0)) == PRE_DEC) { rtx delta_rtx; breg = XEXP (XEXP (dst, 0), 0); delta_rtx = (GET_CODE (XEXP (dst, 0)) == PRE_INC ? GEN_INT (GET_MODE_SIZE (GET_MODE (dst))) : GEN_INT (-GET_MODE_SIZE (GET_MODE (dst)))); /* We have to update the breg before doing the store. Use store with update, if available. */ if (TARGET_UPDATE) { rtx nsrc = simplify_gen_subreg (reg_mode, src, mode, 0); emit_insn (TARGET_32BIT ? (TARGET_POWERPC64 ? gen_movdi_si_update (breg, breg, delta_rtx, nsrc) : gen_movsi_update (breg, breg, delta_rtx, nsrc)) : gen_movdi_di_update (breg, breg, delta_rtx, nsrc)); used_update = true; } else emit_insn (gen_add3_insn (breg, breg, delta_rtx)); dst = replace_equiv_address (dst, breg); } else if (!rs6000_offsettable_memref_p (dst) && GET_CODE (XEXP (dst, 0)) != LO_SUM) { if (GET_CODE (XEXP (dst, 0)) == PRE_MODIFY) { rtx basereg = XEXP (XEXP (dst, 0), 0); if (TARGET_UPDATE) { rtx nsrc = simplify_gen_subreg (reg_mode, src, mode, 0); emit_insn (gen_rtx_SET (VOIDmode, gen_rtx_MEM (reg_mode, XEXP (dst, 0)), nsrc)); used_update = true; } else emit_insn (gen_rtx_SET (VOIDmode, basereg, XEXP (XEXP (dst, 0), 1))); dst = replace_equiv_address (dst, basereg); } else { rtx basereg = XEXP (XEXP (dst, 0), 0); rtx offsetreg = XEXP (XEXP (dst, 0), 1); gcc_assert (GET_CODE (XEXP (dst, 0)) == PLUS && REG_P (basereg) && REG_P (offsetreg) && REGNO (basereg) != REGNO (offsetreg)); if (REGNO (basereg) == 0) { rtx tmp = offsetreg; offsetreg = basereg; basereg = tmp; } emit_insn (gen_add3_insn (basereg, basereg, offsetreg)); restore_basereg = gen_sub3_insn (basereg, basereg, offsetreg); dst = replace_equiv_address (dst, basereg); } } else if (GET_CODE (XEXP (dst, 0)) != LO_SUM) gcc_assert (rs6000_offsettable_memref_p (dst)); } for (i = 0; i < nregs; i++) { /* Calculate index to next subword. */ ++j; if (j == nregs) j = 0; /* If compiler already emitted move of first word by store with update, no need to do anything. */ if (j == 0 && used_update) continue; emit_insn (gen_rtx_SET (VOIDmode, simplify_gen_subreg (reg_mode, dst, mode, j * reg_mode_size), simplify_gen_subreg (reg_mode, src, mode, j * reg_mode_size))); } if (restore_basereg != NULL_RTX) emit_insn (restore_basereg); } } /* This page contains routines that are used to determine what the function prologue and epilogue code will do and write them out. */ /* Return the first fixed-point register that is required to be saved. 32 if none. */ int first_reg_to_save (void) { int first_reg; /* Find lowest numbered live register. */ for (first_reg = 13; first_reg <= 31; first_reg++) if (df_regs_ever_live_p (first_reg) && (! call_used_regs[first_reg] || (first_reg == RS6000_PIC_OFFSET_TABLE_REGNUM && ((DEFAULT_ABI == ABI_V4 && flag_pic != 0) || (DEFAULT_ABI == ABI_DARWIN && flag_pic) || (TARGET_TOC && TARGET_MINIMAL_TOC))))) break; #if TARGET_MACHO if (flag_pic && crtl->uses_pic_offset_table && first_reg > RS6000_PIC_OFFSET_TABLE_REGNUM) return RS6000_PIC_OFFSET_TABLE_REGNUM; #endif return first_reg; } /* Similar, for FP regs. */ int first_fp_reg_to_save (void) { int first_reg; /* Find lowest numbered live register. */ for (first_reg = 14 + 32; first_reg <= 63; first_reg++) if (df_regs_ever_live_p (first_reg)) break; return first_reg; } /* Similar, for AltiVec regs. */ static int first_altivec_reg_to_save (void) { int i; /* Stack frame remains as is unless we are in AltiVec ABI. */ if (! TARGET_ALTIVEC_ABI) return LAST_ALTIVEC_REGNO + 1; /* On Darwin, the unwind routines are compiled without TARGET_ALTIVEC, and use save_world to save/restore the altivec registers when necessary. */ if (DEFAULT_ABI == ABI_DARWIN && crtl->calls_eh_return && ! TARGET_ALTIVEC) return FIRST_ALTIVEC_REGNO + 20; /* Find lowest numbered live register. */ for (i = FIRST_ALTIVEC_REGNO + 20; i <= LAST_ALTIVEC_REGNO; ++i) if (df_regs_ever_live_p (i)) break; return i; } /* Return a 32-bit mask of the AltiVec registers we need to set in VRSAVE. Bit n of the return value is 1 if Vn is live. The MSB in the 32-bit word is 0. */ static unsigned int compute_vrsave_mask (void) { unsigned int i, mask = 0; /* On Darwin, the unwind routines are compiled without TARGET_ALTIVEC, and use save_world to save/restore the call-saved altivec registers when necessary. */ if (DEFAULT_ABI == ABI_DARWIN && crtl->calls_eh_return && ! TARGET_ALTIVEC) mask |= 0xFFF; /* First, find out if we use _any_ altivec registers. */ for (i = FIRST_ALTIVEC_REGNO; i <= LAST_ALTIVEC_REGNO; ++i) if (df_regs_ever_live_p (i)) mask |= ALTIVEC_REG_BIT (i); if (mask == 0) return mask; /* Next, remove the argument registers from the set. These must be in the VRSAVE mask set by the caller, so we don't need to add them in again. More importantly, the mask we compute here is used to generate CLOBBERs in the set_vrsave insn, and we do not wish the argument registers to die. */ for (i = crtl->args.info.vregno - 1; i >= ALTIVEC_ARG_MIN_REG; --i) mask &= ~ALTIVEC_REG_BIT (i); /* Similarly, remove the return value from the set. */ { bool yes = false; diddle_return_value (is_altivec_return_reg, &yes); if (yes) mask &= ~ALTIVEC_REG_BIT (ALTIVEC_ARG_RETURN); } return mask; } /* For a very restricted set of circumstances, we can cut down the size of prologues/epilogues by calling our own save/restore-the-world routines. */ static void compute_save_world_info (rs6000_stack_t *info_ptr) { info_ptr->world_save_p = 1; info_ptr->world_save_p = (WORLD_SAVE_P (info_ptr) && DEFAULT_ABI == ABI_DARWIN && ! (cfun->calls_setjmp && flag_exceptions) && info_ptr->first_fp_reg_save == FIRST_SAVED_FP_REGNO && info_ptr->first_gp_reg_save == FIRST_SAVED_GP_REGNO && info_ptr->first_altivec_reg_save == FIRST_SAVED_ALTIVEC_REGNO && info_ptr->cr_save_p); /* This will not work in conjunction with sibcalls. Make sure there are none. (This check is expensive, but seldom executed.) */ if (WORLD_SAVE_P (info_ptr)) { rtx insn; for ( insn = get_last_insn_anywhere (); insn; insn = PREV_INSN (insn)) if ( GET_CODE (insn) == CALL_INSN && SIBLING_CALL_P (insn)) { info_ptr->world_save_p = 0; break; } } if (WORLD_SAVE_P (info_ptr)) { /* Even if we're not touching VRsave, make sure there's room on the stack for it, if it looks like we're calling SAVE_WORLD, which will attempt to save it. */ info_ptr->vrsave_size = 4; /* If we are going to save the world, we need to save the link register too. */ info_ptr->lr_save_p = 1; /* "Save" the VRsave register too if we're saving the world. */ if (info_ptr->vrsave_mask == 0) info_ptr->vrsave_mask = compute_vrsave_mask (); /* Because the Darwin register save/restore routines only handle F14 .. F31 and V20 .. V31 as per the ABI, perform a consistency check. */ gcc_assert (info_ptr->first_fp_reg_save >= FIRST_SAVED_FP_REGNO && (info_ptr->first_altivec_reg_save >= FIRST_SAVED_ALTIVEC_REGNO)); } return; } static void is_altivec_return_reg (rtx reg, void *xyes) { bool *yes = (bool *) xyes; if (REGNO (reg) == ALTIVEC_ARG_RETURN) *yes = true; } /* Calculate the stack information for the current function. This is complicated by having two separate calling sequences, the AIX calling sequence and the V.4 calling sequence. AIX (and Darwin/Mac OS X) stack frames look like: 32-bit 64-bit SP----> +---------------------------------------+ | back chain to caller | 0 0 +---------------------------------------+ | saved CR | 4 8 (8-11) +---------------------------------------+ | saved LR | 8 16 +---------------------------------------+ | reserved for compilers | 12 24 +---------------------------------------+ | reserved for binders | 16 32 +---------------------------------------+ | saved TOC pointer | 20 40 +---------------------------------------+ | Parameter save area (P) | 24 48 +---------------------------------------+ | Alloca space (A) | 24+P etc. +---------------------------------------+ | Local variable space (L) | 24+P+A +---------------------------------------+ | Float/int conversion temporary (X) | 24+P+A+L +---------------------------------------+ | Save area for AltiVec registers (W) | 24+P+A+L+X +---------------------------------------+ | AltiVec alignment padding (Y) | 24+P+A+L+X+W +---------------------------------------+ | Save area for VRSAVE register (Z) | 24+P+A+L+X+W+Y +---------------------------------------+ | Save area for GP registers (G) | 24+P+A+X+L+X+W+Y+Z +---------------------------------------+ | Save area for FP registers (F) | 24+P+A+X+L+X+W+Y+Z+G +---------------------------------------+ old SP->| back chain to caller's caller | +---------------------------------------+ The required alignment for AIX configurations is two words (i.e., 8 or 16 bytes). V.4 stack frames look like: SP----> +---------------------------------------+ | back chain to caller | 0 +---------------------------------------+ | caller's saved LR | 4 +---------------------------------------+ | Parameter save area (P) | 8 +---------------------------------------+ | Alloca space (A) | 8+P +---------------------------------------+ | Varargs save area (V) | 8+P+A +---------------------------------------+ | Local variable space (L) | 8+P+A+V +---------------------------------------+ | Float/int conversion temporary (X) | 8+P+A+V+L +---------------------------------------+ | Save area for AltiVec registers (W) | 8+P+A+V+L+X +---------------------------------------+ | AltiVec alignment padding (Y) | 8+P+A+V+L+X+W +---------------------------------------+ | Save area for VRSAVE register (Z) | 8+P+A+V+L+X+W+Y +---------------------------------------+ | SPE: area for 64-bit GP registers | +---------------------------------------+ | SPE alignment padding | +---------------------------------------+ | saved CR (C) | 8+P+A+V+L+X+W+Y+Z +---------------------------------------+ | Save area for GP registers (G) | 8+P+A+V+L+X+W+Y+Z+C +---------------------------------------+ | Save area for FP registers (F) | 8+P+A+V+L+X+W+Y+Z+C+G +---------------------------------------+ old SP->| back chain to caller's caller | +---------------------------------------+ The required alignment for V.4 is 16 bytes, or 8 bytes if -meabi is given. (But note below and in sysv4.h that we require only 8 and may round up the size of our stack frame anyways. The historical reason is early versions of powerpc-linux which didn't properly align the stack at program startup. A happy side-effect is that -mno-eabi libraries can be used with -meabi programs.) The EABI configuration defaults to the V.4 layout. However, the stack alignment requirements may differ. If -mno-eabi is not given, the required stack alignment is 8 bytes; if -mno-eabi is given, the required alignment is 16 bytes. (But see V.4 comment above.) */ #ifndef ABI_STACK_BOUNDARY #define ABI_STACK_BOUNDARY STACK_BOUNDARY #endif static rs6000_stack_t * rs6000_stack_info (void) { static rs6000_stack_t info; rs6000_stack_t *info_ptr = &info; int reg_size = TARGET_32BIT ? 4 : 8; int ehrd_size; int save_align; int first_gp; HOST_WIDE_INT non_fixed_size; memset (&info, 0, sizeof (info)); if (TARGET_SPE) { /* Cache value so we don't rescan instruction chain over and over. */ if (cfun->machine->insn_chain_scanned_p == 0) cfun->machine->insn_chain_scanned_p = spe_func_has_64bit_regs_p () + 1; info_ptr->spe_64bit_regs_used = cfun->machine->insn_chain_scanned_p - 1; } /* Select which calling sequence. */ info_ptr->abi = DEFAULT_ABI; /* Calculate which registers need to be saved & save area size. */ info_ptr->first_gp_reg_save = first_reg_to_save (); /* Assume that we will have to save RS6000_PIC_OFFSET_TABLE_REGNUM, even if it currently looks like we won't. Reload may need it to get at a constant; if so, it will have already created a constant pool entry for it. */ if (((TARGET_TOC && TARGET_MINIMAL_TOC) || (flag_pic == 1 && DEFAULT_ABI == ABI_V4) || (flag_pic && DEFAULT_ABI == ABI_DARWIN)) && crtl->uses_const_pool && info_ptr->first_gp_reg_save > RS6000_PIC_OFFSET_TABLE_REGNUM) first_gp = RS6000_PIC_OFFSET_TABLE_REGNUM; else first_gp = info_ptr->first_gp_reg_save; info_ptr->gp_size = reg_size * (32 - first_gp); /* For the SPE, we have an additional upper 32-bits on each GPR. Ideally we should save the entire 64-bits only when the upper half is used in SIMD instructions. Since we only record registers live (not the size they are used in), this proves difficult because we'd have to traverse the instruction chain at the right time, taking reload into account. This is a real pain, so we opt to save the GPRs in 64-bits always if but one register gets used in 64-bits. Otherwise, all the registers in the frame get saved in 32-bits. So... since when we save all GPRs (except the SP) in 64-bits, the traditional GP save area will be empty. */ if (TARGET_SPE_ABI && info_ptr->spe_64bit_regs_used != 0) info_ptr->gp_size = 0; info_ptr->first_fp_reg_save = first_fp_reg_to_save (); info_ptr->fp_size = 8 * (64 - info_ptr->first_fp_reg_save); info_ptr->first_altivec_reg_save = first_altivec_reg_to_save (); info_ptr->altivec_size = 16 * (LAST_ALTIVEC_REGNO + 1 - info_ptr->first_altivec_reg_save); /* Does this function call anything? */ info_ptr->calls_p = (! current_function_is_leaf || cfun->machine->ra_needs_full_frame); /* Determine if we need to save the link register. */ if ((DEFAULT_ABI == ABI_AIX && crtl->profile && !TARGET_PROFILE_KERNEL) #ifdef TARGET_RELOCATABLE || (TARGET_RELOCATABLE && (get_pool_size () != 0)) #endif || (info_ptr->first_fp_reg_save != 64 && !FP_SAVE_INLINE (info_ptr->first_fp_reg_save)) || (DEFAULT_ABI == ABI_V4 && cfun->calls_alloca) || info_ptr->calls_p || rs6000_ra_ever_killed ()) { info_ptr->lr_save_p = 1; df_set_regs_ever_live (LR_REGNO, true); } /* Determine if we need to save the condition code registers. */ if (df_regs_ever_live_p (CR2_REGNO) || df_regs_ever_live_p (CR3_REGNO) || df_regs_ever_live_p (CR4_REGNO)) { info_ptr->cr_save_p = 1; if (DEFAULT_ABI == ABI_V4) info_ptr->cr_size = reg_size; } /* If the current function calls __builtin_eh_return, then we need to allocate stack space for registers that will hold data for the exception handler. */ if (crtl->calls_eh_return) { unsigned int i; for (i = 0; EH_RETURN_DATA_REGNO (i) != INVALID_REGNUM; ++i) continue; /* SPE saves EH registers in 64-bits. */ ehrd_size = i * (TARGET_SPE_ABI && info_ptr->spe_64bit_regs_used != 0 ? UNITS_PER_SPE_WORD : UNITS_PER_WORD); } else ehrd_size = 0; /* Determine various sizes. */ info_ptr->reg_size = reg_size; info_ptr->fixed_size = RS6000_SAVE_AREA; info_ptr->vars_size = RS6000_ALIGN (get_frame_size (), 8); info_ptr->parm_size = RS6000_ALIGN (crtl->outgoing_args_size, TARGET_ALTIVEC ? 16 : 8); if (FRAME_GROWS_DOWNWARD) info_ptr->vars_size += RS6000_ALIGN (info_ptr->fixed_size + info_ptr->vars_size + info_ptr->parm_size, ABI_STACK_BOUNDARY / BITS_PER_UNIT) - (info_ptr->fixed_size + info_ptr->vars_size + info_ptr->parm_size); if (TARGET_SPE_ABI && info_ptr->spe_64bit_regs_used != 0) info_ptr->spe_gp_size = 8 * (32 - first_gp); else info_ptr->spe_gp_size = 0; if (TARGET_ALTIVEC_ABI) info_ptr->vrsave_mask = compute_vrsave_mask (); else info_ptr->vrsave_mask = 0; if (TARGET_ALTIVEC_VRSAVE && info_ptr->vrsave_mask) info_ptr->vrsave_size = 4; else info_ptr->vrsave_size = 0; compute_save_world_info (info_ptr); /* Calculate the offsets. */ switch (DEFAULT_ABI) { case ABI_NONE: default: gcc_unreachable (); case ABI_AIX: case ABI_DARWIN: info_ptr->fp_save_offset = - info_ptr->fp_size; info_ptr->gp_save_offset = info_ptr->fp_save_offset - info_ptr->gp_size; if (TARGET_ALTIVEC_ABI) { info_ptr->vrsave_save_offset = info_ptr->gp_save_offset - info_ptr->vrsave_size; /* Align stack so vector save area is on a quadword boundary. The padding goes above the vectors. */ if (info_ptr->altivec_size != 0) info_ptr->altivec_padding_size = info_ptr->vrsave_save_offset & 0xF; else info_ptr->altivec_padding_size = 0; info_ptr->altivec_save_offset = info_ptr->vrsave_save_offset - info_ptr->altivec_padding_size - info_ptr->altivec_size; gcc_assert (info_ptr->altivec_size == 0 || info_ptr->altivec_save_offset % 16 == 0); /* Adjust for AltiVec case. */ info_ptr->ehrd_offset = info_ptr->altivec_save_offset - ehrd_size; } else info_ptr->ehrd_offset = info_ptr->gp_save_offset - ehrd_size; info_ptr->cr_save_offset = reg_size; /* first word when 64-bit. */ info_ptr->lr_save_offset = 2*reg_size; break; case ABI_V4: info_ptr->fp_save_offset = - info_ptr->fp_size; info_ptr->gp_save_offset = info_ptr->fp_save_offset - info_ptr->gp_size; info_ptr->cr_save_offset = info_ptr->gp_save_offset - info_ptr->cr_size; if (TARGET_SPE_ABI && info_ptr->spe_64bit_regs_used != 0) { /* Align stack so SPE GPR save area is aligned on a double-word boundary. */ if (info_ptr->spe_gp_size != 0 && info_ptr->cr_save_offset != 0) info_ptr->spe_padding_size = 8 - (-info_ptr->cr_save_offset % 8); else info_ptr->spe_padding_size = 0; info_ptr->spe_gp_save_offset = info_ptr->cr_save_offset - info_ptr->spe_padding_size - info_ptr->spe_gp_size; /* Adjust for SPE case. */ info_ptr->ehrd_offset = info_ptr->spe_gp_save_offset; } else if (TARGET_ALTIVEC_ABI) { info_ptr->vrsave_save_offset = info_ptr->cr_save_offset - info_ptr->vrsave_size; /* Align stack so vector save area is on a quadword boundary. */ if (info_ptr->altivec_size != 0) info_ptr->altivec_padding_size = 16 - (-info_ptr->vrsave_save_offset % 16); else info_ptr->altivec_padding_size = 0; info_ptr->altivec_save_offset = info_ptr->vrsave_save_offset - info_ptr->altivec_padding_size - info_ptr->altivec_size; /* Adjust for AltiVec case. */ info_ptr->ehrd_offset = info_ptr->altivec_save_offset; } else info_ptr->ehrd_offset = info_ptr->cr_save_offset; info_ptr->ehrd_offset -= ehrd_size; info_ptr->lr_save_offset = reg_size; break; } save_align = (TARGET_ALTIVEC_ABI || DEFAULT_ABI == ABI_DARWIN) ? 16 : 8; info_ptr->save_size = RS6000_ALIGN (info_ptr->fp_size + info_ptr->gp_size + info_ptr->altivec_size + info_ptr->altivec_padding_size + info_ptr->spe_gp_size + info_ptr->spe_padding_size + ehrd_size + info_ptr->cr_size + info_ptr->vrsave_size, save_align); non_fixed_size = (info_ptr->vars_size + info_ptr->parm_size + info_ptr->save_size); info_ptr->total_size = RS6000_ALIGN (non_fixed_size + info_ptr->fixed_size, ABI_STACK_BOUNDARY / BITS_PER_UNIT); /* Determine if we need to allocate any stack frame: For AIX we need to push the stack if a frame pointer is needed (because the stack might be dynamically adjusted), if we are debugging, if we make calls, or if the sum of fp_save, gp_save, and local variables are more than the space needed to save all non-volatile registers: 32-bit: 18*8 + 19*4 = 220 or 64-bit: 18*8 + 18*8 = 288 (GPR13 reserved). For V.4 we don't have the stack cushion that AIX uses, but assume that the debugger can handle stackless frames. */ if (info_ptr->calls_p) info_ptr->push_p = 1; else if (DEFAULT_ABI == ABI_V4) info_ptr->push_p = non_fixed_size != 0; else if (frame_pointer_needed) info_ptr->push_p = 1; else if (TARGET_XCOFF && write_symbols != NO_DEBUG) info_ptr->push_p = 1; else info_ptr->push_p = non_fixed_size > (TARGET_32BIT ? 220 : 288); /* Zero offsets if we're not saving those registers. */ if (info_ptr->fp_size == 0) info_ptr->fp_save_offset = 0; if (info_ptr->gp_size == 0) info_ptr->gp_save_offset = 0; if (! TARGET_ALTIVEC_ABI || info_ptr->altivec_size == 0) info_ptr->altivec_save_offset = 0; if (! TARGET_ALTIVEC_ABI || info_ptr->vrsave_mask == 0) info_ptr->vrsave_save_offset = 0; if (! TARGET_SPE_ABI || info_ptr->spe_64bit_regs_used == 0 || info_ptr->spe_gp_size == 0) info_ptr->spe_gp_save_offset = 0; if (! info_ptr->lr_save_p) info_ptr->lr_save_offset = 0; if (! info_ptr->cr_save_p) info_ptr->cr_save_offset = 0; return info_ptr; } /* Return true if the current function uses any GPRs in 64-bit SIMD mode. */ static bool spe_func_has_64bit_regs_p (void) { rtx insns, insn; /* Functions that save and restore all the call-saved registers will need to save/restore the registers in 64-bits. */ if (crtl->calls_eh_return || cfun->calls_setjmp || crtl->has_nonlocal_goto) return true; insns = get_insns (); for (insn = NEXT_INSN (insns); insn != NULL_RTX; insn = NEXT_INSN (insn)) { if (INSN_P (insn)) { rtx i; /* FIXME: This should be implemented with attributes... (set_attr "spe64" "true")....then, if (get_spe64(insn)) return true; It's the only reliable way to do the stuff below. */ i = PATTERN (insn); if (GET_CODE (i) == SET) { enum machine_mode mode = GET_MODE (SET_SRC (i)); if (SPE_VECTOR_MODE (mode)) return true; if (TARGET_E500_DOUBLE && (mode == DFmode || mode == TFmode)) return true; } } } return false; } static void debug_stack_info (rs6000_stack_t *info) { const char *abi_string; if (! info) info = rs6000_stack_info (); fprintf (stderr, "\nStack information for function %s:\n", ((current_function_decl && DECL_NAME (current_function_decl)) ? IDENTIFIER_POINTER (DECL_NAME (current_function_decl)) : "<unknown>")); switch (info->abi) { default: abi_string = "Unknown"; break; case ABI_NONE: abi_string = "NONE"; break; case ABI_AIX: abi_string = "AIX"; break; case ABI_DARWIN: abi_string = "Darwin"; break; case ABI_V4: abi_string = "V.4"; break; } fprintf (stderr, "\tABI = %5s\n", abi_string); if (TARGET_ALTIVEC_ABI) fprintf (stderr, "\tALTIVEC ABI extensions enabled.\n"); if (TARGET_SPE_ABI) fprintf (stderr, "\tSPE ABI extensions enabled.\n"); if (info->first_gp_reg_save != 32) fprintf (stderr, "\tfirst_gp_reg_save = %5d\n", info->first_gp_reg_save); if (info->first_fp_reg_save != 64) fprintf (stderr, "\tfirst_fp_reg_save = %5d\n", info->first_fp_reg_save); if (info->first_altivec_reg_save <= LAST_ALTIVEC_REGNO) fprintf (stderr, "\tfirst_altivec_reg_save = %5d\n", info->first_altivec_reg_save); if (info->lr_save_p) fprintf (stderr, "\tlr_save_p = %5d\n", info->lr_save_p); if (info->cr_save_p) fprintf (stderr, "\tcr_save_p = %5d\n", info->cr_save_p); if (info->vrsave_mask) fprintf (stderr, "\tvrsave_mask = 0x%x\n", info->vrsave_mask); if (info->push_p) fprintf (stderr, "\tpush_p = %5d\n", info->push_p); if (info->calls_p) fprintf (stderr, "\tcalls_p = %5d\n", info->calls_p); if (info->gp_save_offset) fprintf (stderr, "\tgp_save_offset = %5d\n", info->gp_save_offset); if (info->fp_save_offset) fprintf (stderr, "\tfp_save_offset = %5d\n", info->fp_save_offset); if (info->altivec_save_offset) fprintf (stderr, "\taltivec_save_offset = %5d\n", info->altivec_save_offset); if (info->spe_gp_save_offset) fprintf (stderr, "\tspe_gp_save_offset = %5d\n", info->spe_gp_save_offset); if (info->vrsave_save_offset) fprintf (stderr, "\tvrsave_save_offset = %5d\n", info->vrsave_save_offset); if (info->lr_save_offset) fprintf (stderr, "\tlr_save_offset = %5d\n", info->lr_save_offset); if (info->cr_save_offset) fprintf (stderr, "\tcr_save_offset = %5d\n", info->cr_save_offset); if (info->varargs_save_offset) fprintf (stderr, "\tvarargs_save_offset = %5d\n", info->varargs_save_offset); if (info->total_size) fprintf (stderr, "\ttotal_size = "HOST_WIDE_INT_PRINT_DEC"\n", info->total_size); if (info->vars_size) fprintf (stderr, "\tvars_size = "HOST_WIDE_INT_PRINT_DEC"\n", info->vars_size); if (info->parm_size) fprintf (stderr, "\tparm_size = %5d\n", info->parm_size); if (info->fixed_size) fprintf (stderr, "\tfixed_size = %5d\n", info->fixed_size); if (info->gp_size) fprintf (stderr, "\tgp_size = %5d\n", info->gp_size); if (info->spe_gp_size) fprintf (stderr, "\tspe_gp_size = %5d\n", info->spe_gp_size); if (info->fp_size) fprintf (stderr, "\tfp_size = %5d\n", info->fp_size); if (info->altivec_size) fprintf (stderr, "\taltivec_size = %5d\n", info->altivec_size); if (info->vrsave_size) fprintf (stderr, "\tvrsave_size = %5d\n", info->vrsave_size); if (info->altivec_padding_size) fprintf (stderr, "\taltivec_padding_size= %5d\n", info->altivec_padding_size); if (info->spe_padding_size) fprintf (stderr, "\tspe_padding_size = %5d\n", info->spe_padding_size); if (info->cr_size) fprintf (stderr, "\tcr_size = %5d\n", info->cr_size); if (info->save_size) fprintf (stderr, "\tsave_size = %5d\n", info->save_size); if (info->reg_size != 4) fprintf (stderr, "\treg_size = %5d\n", info->reg_size); fprintf (stderr, "\n"); } rtx rs6000_return_addr (int count, rtx frame) { /* Currently we don't optimize very well between prolog and body code and for PIC code the code can be actually quite bad, so don't try to be too clever here. */ if (count != 0 || (DEFAULT_ABI != ABI_AIX && flag_pic)) { cfun->machine->ra_needs_full_frame = 1; return gen_rtx_MEM (Pmode, memory_address (Pmode, plus_constant (copy_to_reg (gen_rtx_MEM (Pmode, memory_address (Pmode, frame))), RETURN_ADDRESS_OFFSET))); } cfun->machine->ra_need_lr = 1; return get_hard_reg_initial_val (Pmode, LR_REGNO); } /* Say whether a function is a candidate for sibcall handling or not. We do not allow indirect calls to be optimized into sibling calls. Also, we can't do it if there are any vector parameters; there's nowhere to put the VRsave code so it works; note that functions with vector parameters are required to have a prototype, so the argument type info must be available here. (The tail recursion case can work with vector parameters, but there's no way to distinguish here.) */ static bool rs6000_function_ok_for_sibcall (tree decl, tree exp ATTRIBUTE_UNUSED) { tree type; if (decl) { if (TARGET_ALTIVEC_VRSAVE) { for (type = TYPE_ARG_TYPES (TREE_TYPE (decl)); type; type = TREE_CHAIN (type)) { if (TREE_CODE (TREE_VALUE (type)) == VECTOR_TYPE) return false; } } if (DEFAULT_ABI == ABI_DARWIN || ((*targetm.binds_local_p) (decl) && (DEFAULT_ABI != ABI_AIX || !DECL_EXTERNAL (decl)))) { tree attr_list = TYPE_ATTRIBUTES (TREE_TYPE (decl)); if (!lookup_attribute ("longcall", attr_list) || lookup_attribute ("shortcall", attr_list)) return true; } } return false; } /* NULL if INSN insn is valid within a low-overhead loop. Otherwise return why doloop cannot be applied. PowerPC uses the COUNT register for branch on table instructions. */ static const char * rs6000_invalid_within_doloop (const_rtx insn) { if (CALL_P (insn)) return "Function call in the loop."; if (JUMP_P (insn) && (GET_CODE (PATTERN (insn)) == ADDR_DIFF_VEC || GET_CODE (PATTERN (insn)) == ADDR_VEC)) return "Computed branch in the loop."; return NULL; } static int rs6000_ra_ever_killed (void) { rtx top; rtx reg; rtx insn; if (cfun->is_thunk) return 0; if (cfun->machine->lr_save_state) return cfun->machine->lr_save_state - 1; /* regs_ever_live has LR marked as used if any sibcalls are present, but this should not force saving and restoring in the pro/epilogue. Likewise, reg_set_between_p thinks a sibcall clobbers LR, so that is inappropriate. */ /* Also, the prologue can generate a store into LR that doesn't really count, like this: move LR->R0 bcl to set PIC register move LR->R31 move R0->LR When we're called from the epilogue, we need to avoid counting this as a store. */ push_topmost_sequence (); top = get_insns (); pop_topmost_sequence (); reg = gen_rtx_REG (Pmode, LR_REGNO); for (insn = NEXT_INSN (top); insn != NULL_RTX; insn = NEXT_INSN (insn)) { if (INSN_P (insn)) { if (CALL_P (insn)) { if (!SIBLING_CALL_P (insn)) return 1; } else if (find_regno_note (insn, REG_INC, LR_REGNO)) return 1; else if (set_of (reg, insn) != NULL_RTX && !prologue_epilogue_contains (insn)) return 1; } } return 0; } /* Emit instructions needed to load the TOC register. This is only needed when TARGET_TOC, TARGET_MINIMAL_TOC, and there is a constant pool; or for SVR4 -fpic. */ void rs6000_emit_load_toc_table (int fromprolog) { rtx dest; dest = gen_rtx_REG (Pmode, RS6000_PIC_OFFSET_TABLE_REGNUM); if (TARGET_ELF && TARGET_SECURE_PLT && DEFAULT_ABI != ABI_AIX && flag_pic) { char buf[30]; rtx lab, tmp1, tmp2, got; ASM_GENERATE_INTERNAL_LABEL (buf, "LCF", rs6000_pic_labelno); lab = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf)); if (flag_pic == 2) got = gen_rtx_SYMBOL_REF (Pmode, toc_label_name); else got = rs6000_got_sym (); tmp1 = tmp2 = dest; if (!fromprolog) { tmp1 = gen_reg_rtx (Pmode); tmp2 = gen_reg_rtx (Pmode); } emit_insn (gen_load_toc_v4_PIC_1 (lab)); emit_move_insn (tmp1, gen_rtx_REG (Pmode, LR_REGNO)); emit_insn (gen_load_toc_v4_PIC_3b (tmp2, tmp1, got, lab)); emit_insn (gen_load_toc_v4_PIC_3c (dest, tmp2, got, lab)); } else if (TARGET_ELF && DEFAULT_ABI == ABI_V4 && flag_pic == 1) { emit_insn (gen_load_toc_v4_pic_si ()); emit_move_insn (dest, gen_rtx_REG (Pmode, LR_REGNO)); } else if (TARGET_ELF && DEFAULT_ABI != ABI_AIX && flag_pic == 2) { char buf[30]; rtx temp0 = (fromprolog ? gen_rtx_REG (Pmode, 0) : gen_reg_rtx (Pmode)); if (fromprolog) { rtx symF, symL; ASM_GENERATE_INTERNAL_LABEL (buf, "LCF", rs6000_pic_labelno); symF = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf)); ASM_GENERATE_INTERNAL_LABEL (buf, "LCL", rs6000_pic_labelno); symL = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf)); emit_insn (gen_load_toc_v4_PIC_1 (symF)); emit_move_insn (dest, gen_rtx_REG (Pmode, LR_REGNO)); emit_insn (gen_load_toc_v4_PIC_2 (temp0, dest, symL, symF)); } else { rtx tocsym, lab; tocsym = gen_rtx_SYMBOL_REF (Pmode, toc_label_name); lab = gen_label_rtx (); emit_insn (gen_load_toc_v4_PIC_1b (tocsym, lab)); emit_move_insn (dest, gen_rtx_REG (Pmode, LR_REGNO)); emit_move_insn (temp0, gen_rtx_MEM (Pmode, dest)); } emit_insn (gen_addsi3 (dest, temp0, dest)); } else if (TARGET_ELF && !TARGET_AIX && flag_pic == 0 && TARGET_MINIMAL_TOC) { /* This is for AIX code running in non-PIC ELF32. */ char buf[30]; rtx realsym; ASM_GENERATE_INTERNAL_LABEL (buf, "LCTOC", 1); realsym = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf)); emit_insn (gen_elf_high (dest, realsym)); emit_insn (gen_elf_low (dest, dest, realsym)); } else { gcc_assert (DEFAULT_ABI == ABI_AIX); if (TARGET_32BIT) emit_insn (gen_load_toc_aix_si (dest)); else emit_insn (gen_load_toc_aix_di (dest)); } } /* Emit instructions to restore the link register after determining where its value has been stored. */ void rs6000_emit_eh_reg_restore (rtx source, rtx scratch) { rs6000_stack_t *info = rs6000_stack_info (); rtx operands[2]; operands[0] = source; operands[1] = scratch; if (info->lr_save_p) { rtx frame_rtx = stack_pointer_rtx; HOST_WIDE_INT sp_offset = 0; rtx tmp; if (frame_pointer_needed || cfun->calls_alloca || info->total_size > 32767) { tmp = gen_frame_mem (Pmode, frame_rtx); emit_move_insn (operands[1], tmp); frame_rtx = operands[1]; } else if (info->push_p) sp_offset = info->total_size; tmp = plus_constant (frame_rtx, info->lr_save_offset + sp_offset); tmp = gen_frame_mem (Pmode, tmp); emit_move_insn (tmp, operands[0]); } else emit_move_insn (gen_rtx_REG (Pmode, LR_REGNO), operands[0]); /* Freeze lr_save_p. We've just emitted rtl that depends on the state of lr_save_p so any change from here on would be a bug. In particular, stop rs6000_ra_ever_killed from considering the SET of lr we may have added just above. */ cfun->machine->lr_save_state = info->lr_save_p + 1; } static GTY(()) alias_set_type set = -1; alias_set_type get_TOC_alias_set (void) { if (set == -1) set = new_alias_set (); return set; } /* This returns nonzero if the current function uses the TOC. This is determined by the presence of (use (unspec ... UNSPEC_TOC)), which is generated by the ABI_V4 load_toc_* patterns. */ #if TARGET_ELF static int uses_TOC (void) { rtx insn; for (insn = get_insns (); insn; insn = NEXT_INSN (insn)) if (INSN_P (insn)) { rtx pat = PATTERN (insn); int i; if (GET_CODE (pat) == PARALLEL) for (i = 0; i < XVECLEN (pat, 0); i++) { rtx sub = XVECEXP (pat, 0, i); if (GET_CODE (sub) == USE) { sub = XEXP (sub, 0); if (GET_CODE (sub) == UNSPEC && XINT (sub, 1) == UNSPEC_TOC) return 1; } } } return 0; } #endif rtx create_TOC_reference (rtx symbol) { if (TARGET_DEBUG_ADDR) { if (GET_CODE (symbol) == SYMBOL_REF) fprintf (stderr, "\ncreate_TOC_reference, (symbol_ref %s)\n", XSTR (symbol, 0)); else { fprintf (stderr, "\ncreate_TOC_reference, code %s:\n", GET_RTX_NAME (GET_CODE (symbol))); debug_rtx (symbol); } } if (!can_create_pseudo_p ()) df_set_regs_ever_live (TOC_REGISTER, true); return gen_rtx_PLUS (Pmode, gen_rtx_REG (Pmode, TOC_REGISTER), gen_rtx_CONST (Pmode, gen_rtx_UNSPEC (Pmode, gen_rtvec (1, symbol), UNSPEC_TOCREL))); } /* Issue assembly directives that create a reference to the given DWARF FRAME_TABLE_LABEL from the current function section. */ void rs6000_aix_asm_output_dwarf_table_ref (char * frame_table_label) { fprintf (asm_out_file, "\t.ref %s\n", TARGET_STRIP_NAME_ENCODING (frame_table_label)); } /* If _Unwind_* has been called from within the same module, toc register is not guaranteed to be saved to 40(1) on function entry. Save it there in that case. */ void rs6000_aix_emit_builtin_unwind_init (void) { rtx mem; rtx stack_top = gen_reg_rtx (Pmode); rtx opcode_addr = gen_reg_rtx (Pmode); rtx opcode = gen_reg_rtx (SImode); rtx tocompare = gen_reg_rtx (SImode); rtx no_toc_save_needed = gen_label_rtx (); mem = gen_frame_mem (Pmode, hard_frame_pointer_rtx); emit_move_insn (stack_top, mem); mem = gen_frame_mem (Pmode, gen_rtx_PLUS (Pmode, stack_top, GEN_INT (2 * GET_MODE_SIZE (Pmode)))); emit_move_insn (opcode_addr, mem); emit_move_insn (opcode, gen_rtx_MEM (SImode, opcode_addr)); emit_move_insn (tocompare, gen_int_mode (TARGET_32BIT ? 0x80410014 : 0xE8410028, SImode)); do_compare_rtx_and_jump (opcode, tocompare, EQ, 1, SImode, NULL_RTX, NULL_RTX, no_toc_save_needed, -1); mem = gen_frame_mem (Pmode, gen_rtx_PLUS (Pmode, stack_top, GEN_INT (5 * GET_MODE_SIZE (Pmode)))); emit_move_insn (mem, gen_rtx_REG (Pmode, 2)); emit_label (no_toc_save_needed); } /* This ties together stack memory (MEM with an alias set of frame_alias_set) and the change to the stack pointer. */ static void rs6000_emit_stack_tie (void) { rtx mem = gen_frame_mem (BLKmode, gen_rtx_REG (Pmode, STACK_POINTER_REGNUM)); emit_insn (gen_stack_tie (mem)); } /* Emit the correct code for allocating stack space, as insns. If COPY_REG, make sure a copy of the old frame is left there. The generated code may use hard register 0 as a temporary. */ static void rs6000_emit_allocate_stack (HOST_WIDE_INT size, rtx copy_reg) { rtx insn; rtx stack_reg = gen_rtx_REG (Pmode, STACK_POINTER_REGNUM); rtx tmp_reg = gen_rtx_REG (Pmode, 0); rtx todec = gen_int_mode (-size, Pmode); rtx par, set, mem; if (INTVAL (todec) != -size) { warning (0, "stack frame too large"); emit_insn (gen_trap ()); return; } if (crtl->limit_stack) { if (REG_P (stack_limit_rtx) && REGNO (stack_limit_rtx) > 1 && REGNO (stack_limit_rtx) <= 31) { emit_insn (gen_add3_insn (tmp_reg, stack_limit_rtx, GEN_INT (size))); emit_insn (gen_cond_trap (LTU, stack_reg, tmp_reg, const0_rtx)); } else if (GET_CODE (stack_limit_rtx) == SYMBOL_REF && TARGET_32BIT && DEFAULT_ABI == ABI_V4) { rtx toload = gen_rtx_CONST (VOIDmode, gen_rtx_PLUS (Pmode, stack_limit_rtx, GEN_INT (size))); emit_insn (gen_elf_high (tmp_reg, toload)); emit_insn (gen_elf_low (tmp_reg, tmp_reg, toload)); emit_insn (gen_cond_trap (LTU, stack_reg, tmp_reg, const0_rtx)); } else warning (0, "stack limit expression is not supported"); } if (copy_reg) emit_move_insn (copy_reg, stack_reg); if (size > 32767) { /* Need a note here so that try_split doesn't get confused. */ if (get_last_insn () == NULL_RTX) emit_note (NOTE_INSN_DELETED); insn = emit_move_insn (tmp_reg, todec); try_split (PATTERN (insn), insn, 0); todec = tmp_reg; } insn = emit_insn (TARGET_32BIT ? gen_movsi_update_stack (stack_reg, stack_reg, todec, stack_reg) : gen_movdi_di_update_stack (stack_reg, stack_reg, todec, stack_reg)); /* Since we didn't use gen_frame_mem to generate the MEM, grab it now and set the alias set/attributes. The above gen_*_update calls will generate a PARALLEL with the MEM set being the first operation. */ par = PATTERN (insn); gcc_assert (GET_CODE (par) == PARALLEL); set = XVECEXP (par, 0, 0); gcc_assert (GET_CODE (set) == SET); mem = SET_DEST (set); gcc_assert (MEM_P (mem)); MEM_NOTRAP_P (mem) = 1; set_mem_alias_set (mem, get_frame_alias_set ()); RTX_FRAME_RELATED_P (insn) = 1; add_reg_note (insn, REG_FRAME_RELATED_EXPR, gen_rtx_SET (VOIDmode, stack_reg, gen_rtx_PLUS (Pmode, stack_reg, GEN_INT (-size)))); } /* Add to 'insn' a note which is PATTERN (INSN) but with REG replaced with (plus:P (reg 1) VAL), and with REG2 replaced with RREG if REG2 is not NULL. It would be nice if dwarf2out_frame_debug_expr could deduce these equivalences by itself so it wasn't necessary to hold its hand so much. */ static void rs6000_frame_related (rtx insn, rtx reg, HOST_WIDE_INT val, rtx reg2, rtx rreg) { rtx real, temp; /* copy_rtx will not make unique copies of registers, so we need to ensure we don't have unwanted sharing here. */ if (reg == reg2) reg = gen_raw_REG (GET_MODE (reg), REGNO (reg)); if (reg == rreg) reg = gen_raw_REG (GET_MODE (reg), REGNO (reg)); real = copy_rtx (PATTERN (insn)); if (reg2 != NULL_RTX) real = replace_rtx (real, reg2, rreg); real = replace_rtx (real, reg, gen_rtx_PLUS (Pmode, gen_rtx_REG (Pmode, STACK_POINTER_REGNUM), GEN_INT (val))); /* We expect that 'real' is either a SET or a PARALLEL containing SETs (and possibly other stuff). In a PARALLEL, all the SETs are important so they all have to be marked RTX_FRAME_RELATED_P. */ if (GET_CODE (real) == SET) { rtx set = real; temp = simplify_rtx (SET_SRC (set)); if (temp) SET_SRC (set) = temp; temp = simplify_rtx (SET_DEST (set)); if (temp) SET_DEST (set) = temp; if (GET_CODE (SET_DEST (set)) == MEM) { temp = simplify_rtx (XEXP (SET_DEST (set), 0)); if (temp) XEXP (SET_DEST (set), 0) = temp; } } else { int i; gcc_assert (GET_CODE (real) == PARALLEL); for (i = 0; i < XVECLEN (real, 0); i++) if (GET_CODE (XVECEXP (real, 0, i)) == SET) { rtx set = XVECEXP (real, 0, i); temp = simplify_rtx (SET_SRC (set)); if (temp) SET_SRC (set) = temp; temp = simplify_rtx (SET_DEST (set)); if (temp) SET_DEST (set) = temp; if (GET_CODE (SET_DEST (set)) == MEM) { temp = simplify_rtx (XEXP (SET_DEST (set), 0)); if (temp) XEXP (SET_DEST (set), 0) = temp; } RTX_FRAME_RELATED_P (set) = 1; } } RTX_FRAME_RELATED_P (insn) = 1; add_reg_note (insn, REG_FRAME_RELATED_EXPR, real); } /* Returns an insn that has a vrsave set operation with the appropriate CLOBBERs. */ static rtx generate_set_vrsave (rtx reg, rs6000_stack_t *info, int epiloguep) { int nclobs, i; rtx insn, clobs[TOTAL_ALTIVEC_REGS + 1]; rtx vrsave = gen_rtx_REG (SImode, VRSAVE_REGNO); clobs[0] = gen_rtx_SET (VOIDmode, vrsave, gen_rtx_UNSPEC_VOLATILE (SImode, gen_rtvec (2, reg, vrsave), UNSPECV_SET_VRSAVE)); nclobs = 1; /* We need to clobber the registers in the mask so the scheduler does not move sets to VRSAVE before sets of AltiVec registers. However, if the function receives nonlocal gotos, reload will set all call saved registers live. We will end up with: (set (reg 999) (mem)) (parallel [ (set (reg vrsave) (unspec blah)) (clobber (reg 999))]) The clobber will cause the store into reg 999 to be dead, and flow will attempt to delete an epilogue insn. In this case, we need an unspec use/set of the register. */ for (i = FIRST_ALTIVEC_REGNO; i <= LAST_ALTIVEC_REGNO; ++i) if (info->vrsave_mask & ALTIVEC_REG_BIT (i)) { if (!epiloguep || call_used_regs [i]) clobs[nclobs++] = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (V4SImode, i)); else { rtx reg = gen_rtx_REG (V4SImode, i); clobs[nclobs++] = gen_rtx_SET (VOIDmode, reg, gen_rtx_UNSPEC (V4SImode, gen_rtvec (1, reg), 27)); } } insn = gen_rtx_PARALLEL (VOIDmode, rtvec_alloc (nclobs)); for (i = 0; i < nclobs; ++i) XVECEXP (insn, 0, i) = clobs[i]; return insn; } /* Save a register into the frame, and emit RTX_FRAME_RELATED_P notes. Save REGNO into [FRAME_REG + OFFSET] in mode MODE. */ static void emit_frame_save (rtx frame_reg, rtx frame_ptr, enum machine_mode mode, unsigned int regno, int offset, HOST_WIDE_INT total_size) { rtx reg, offset_rtx, insn, mem, addr, int_rtx; rtx replacea, replaceb; int_rtx = GEN_INT (offset); /* Some cases that need register indexed addressing. */ if ((TARGET_ALTIVEC_ABI && ALTIVEC_VECTOR_MODE (mode)) || (TARGET_VSX && VSX_VECTOR_MODE (mode)) || (TARGET_E500_DOUBLE && mode == DFmode) || (TARGET_SPE_ABI && SPE_VECTOR_MODE (mode) && !SPE_CONST_OFFSET_OK (offset))) { /* Whomever calls us must make sure r11 is available in the flow path of instructions in the prologue. */ offset_rtx = gen_rtx_REG (Pmode, 11); emit_move_insn (offset_rtx, int_rtx); replacea = offset_rtx; replaceb = int_rtx; } else { offset_rtx = int_rtx; replacea = NULL_RTX; replaceb = NULL_RTX; } reg = gen_rtx_REG (mode, regno); addr = gen_rtx_PLUS (Pmode, frame_reg, offset_rtx); mem = gen_frame_mem (mode, addr); insn = emit_move_insn (mem, reg); rs6000_frame_related (insn, frame_ptr, total_size, replacea, replaceb); } /* Emit an offset memory reference suitable for a frame store, while converting to a valid addressing mode. */ static rtx gen_frame_mem_offset (enum machine_mode mode, rtx reg, int offset) { rtx int_rtx, offset_rtx; int_rtx = GEN_INT (offset); if ((TARGET_SPE_ABI && SPE_VECTOR_MODE (mode)) || (TARGET_E500_DOUBLE && mode == DFmode)) { offset_rtx = gen_rtx_REG (Pmode, FIXED_SCRATCH); emit_move_insn (offset_rtx, int_rtx); } else offset_rtx = int_rtx; return gen_frame_mem (mode, gen_rtx_PLUS (Pmode, reg, offset_rtx)); } /* Look for user-defined global regs. We should not save and restore these, and cannot use stmw/lmw if there are any in its range. */ static bool no_global_regs_above (int first, bool gpr) { int i; int last = gpr ? 32 : 64; for (i = first; i < last; i++) if (global_regs[i]) return false; return true; } #ifndef TARGET_FIX_AND_CONTINUE #define TARGET_FIX_AND_CONTINUE 0 #endif /* It's really GPR 13 and FPR 14, but we need the smaller of the two. */ #define FIRST_SAVRES_REGISTER FIRST_SAVED_GP_REGNO #define LAST_SAVRES_REGISTER 31 #define N_SAVRES_REGISTERS (LAST_SAVRES_REGISTER - FIRST_SAVRES_REGISTER + 1) static GTY(()) rtx savres_routine_syms[N_SAVRES_REGISTERS][8]; /* Temporary holding space for an out-of-line register save/restore routine name. */ static char savres_routine_name[30]; /* Return the name for an out-of-line register save/restore routine. We are saving/restoring GPRs if GPR is true. */ static char * rs6000_savres_routine_name (rs6000_stack_t *info, int regno, bool savep, bool gpr, bool lr) { const char *prefix = ""; const char *suffix = ""; /* Different targets are supposed to define {SAVE,RESTORE}_FP_{PREFIX,SUFFIX} with the idea that the needed routine name could be defined with: sprintf (name, "%s%d%s", SAVE_FP_PREFIX, regno, SAVE_FP_SUFFIX) This is a nice idea in practice, but in reality, things are complicated in several ways: - ELF targets have save/restore routines for GPRs. - SPE targets use different prefixes for 32/64-bit registers, and neither of them fit neatly in the FOO_{PREFIX,SUFFIX} regimen. - PPC64 ELF targets have routines for save/restore of GPRs that differ in what they do with the link register, so having a set prefix doesn't work. (We only use one of the save routines at the moment, though.) - PPC32 elf targets have "exit" versions of the restore routines that restore the link register and can save some extra space. These require an extra suffix. (There are also "tail" versions of the restore routines and "GOT" versions of the save routines, but we don't generate those at present. Same problems apply, though.) We deal with all this by synthesizing our own prefix/suffix and using that for the simple sprintf call shown above. */ if (TARGET_SPE) { /* No floating point saves on the SPE. */ gcc_assert (gpr); if (savep) prefix = info->spe_64bit_regs_used ? "_save64gpr_" : "_save32gpr_"; else prefix = info->spe_64bit_regs_used ? "_rest64gpr_" : "_rest32gpr_"; if (lr) suffix = "_x"; } else if (DEFAULT_ABI == ABI_V4) { if (TARGET_64BIT) goto aix_names; if (gpr) prefix = savep ? "_savegpr_" : "_restgpr_"; else prefix = savep ? "_savefpr_" : "_restfpr_"; if (lr) suffix = "_x"; } else if (DEFAULT_ABI == ABI_AIX) { #ifndef POWERPC_LINUX /* No out-of-line save/restore routines for GPRs on AIX. */ gcc_assert (!TARGET_AIX || !gpr); #endif aix_names: if (gpr) prefix = (savep ? (lr ? "_savegpr0_" : "_savegpr1_") : (lr ? "_restgpr0_" : "_restgpr1_")); #ifdef POWERPC_LINUX else if (lr) prefix = (savep ? "_savefpr_" : "_restfpr_"); #endif else { prefix = savep ? SAVE_FP_PREFIX : RESTORE_FP_PREFIX; suffix = savep ? SAVE_FP_SUFFIX : RESTORE_FP_SUFFIX; } } else if (DEFAULT_ABI == ABI_DARWIN) sorry ("Out-of-line save/restore routines not supported on Darwin"); sprintf (savres_routine_name, "%s%d%s", prefix, regno, suffix); return savres_routine_name; } /* Return an RTL SYMBOL_REF for an out-of-line register save/restore routine. We are saving/restoring GPRs if GPR is true. */ static rtx rs6000_savres_routine_sym (rs6000_stack_t *info, bool savep, bool gpr, bool lr) { int regno = gpr ? info->first_gp_reg_save : (info->first_fp_reg_save - 32); rtx sym; int select = ((savep ? 1 : 0) << 2 | ((TARGET_SPE_ABI /* On the SPE, we never have any FPRs, but we do have 32/64-bit versions of the routines. */ ? (info->spe_64bit_regs_used ? 1 : 0) : (gpr ? 1 : 0)) << 1) | (lr ? 1: 0)); /* Don't generate bogus routine names. */ gcc_assert (FIRST_SAVRES_REGISTER <= regno && regno <= LAST_SAVRES_REGISTER); sym = savres_routine_syms[regno-FIRST_SAVRES_REGISTER][select]; if (sym == NULL) { char *name; name = rs6000_savres_routine_name (info, regno, savep, gpr, lr); sym = savres_routine_syms[regno-FIRST_SAVRES_REGISTER][select] = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (name)); SYMBOL_REF_FLAGS (sym) |= SYMBOL_FLAG_FUNCTION; } return sym; } /* Emit a sequence of insns, including a stack tie if needed, for resetting the stack pointer. If SAVRES is true, then don't reset the stack pointer, but move the base of the frame into r11 for use by out-of-line register restore routines. */ static rtx rs6000_emit_stack_reset (rs6000_stack_t *info, rtx sp_reg_rtx, rtx frame_reg_rtx, int sp_offset, bool savres) { /* This blockage is needed so that sched doesn't decide to move the sp change before the register restores. */ if (frame_reg_rtx != sp_reg_rtx || (TARGET_SPE_ABI && info->spe_64bit_regs_used != 0 && info->first_gp_reg_save != 32)) rs6000_emit_stack_tie (); if (frame_reg_rtx != sp_reg_rtx) { if (sp_offset != 0) { rtx dest_reg = savres ? gen_rtx_REG (Pmode, 11) : sp_reg_rtx; return emit_insn (gen_add3_insn (dest_reg, frame_reg_rtx, GEN_INT (sp_offset))); } else if (!savres) return emit_move_insn (sp_reg_rtx, frame_reg_rtx); } else if (sp_offset != 0) { /* If we are restoring registers out-of-line, we will be using the "exit" variants of the restore routines, which will reset the stack for us. But we do need to point r11 into the right place for those routines. */ rtx dest_reg = (savres ? gen_rtx_REG (Pmode, 11) : sp_reg_rtx); rtx insn = emit_insn (gen_add3_insn (dest_reg, sp_reg_rtx, GEN_INT (sp_offset))); if (!savres) return insn; } return NULL_RTX; } /* Construct a parallel rtx describing the effect of a call to an out-of-line register save/restore routine. */ static rtx rs6000_make_savres_rtx (rs6000_stack_t *info, rtx frame_reg_rtx, int save_area_offset, enum machine_mode reg_mode, bool savep, bool gpr, bool lr) { int i; int offset, start_reg, end_reg, n_regs; int reg_size = GET_MODE_SIZE (reg_mode); rtx sym; rtvec p; offset = 0; start_reg = (gpr ? info->first_gp_reg_save : info->first_fp_reg_save); end_reg = gpr ? 32 : 64; n_regs = end_reg - start_reg; p = rtvec_alloc ((lr ? 4 : 3) + n_regs); if (!savep && lr) RTVEC_ELT (p, offset++) = gen_rtx_RETURN (VOIDmode); RTVEC_ELT (p, offset++) = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, 65)); sym = rs6000_savres_routine_sym (info, savep, gpr, lr); RTVEC_ELT (p, offset++) = gen_rtx_USE (VOIDmode, sym); RTVEC_ELT (p, offset++) = gen_rtx_USE (VOIDmode, gen_rtx_REG (Pmode, DEFAULT_ABI != ABI_AIX ? 11 : gpr && !lr ? 12 : 1)); for (i = 0; i < end_reg - start_reg; i++) { rtx addr, reg, mem; reg = gen_rtx_REG (reg_mode, start_reg + i); addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (save_area_offset + reg_size*i)); mem = gen_frame_mem (reg_mode, addr); RTVEC_ELT (p, i + offset) = gen_rtx_SET (VOIDmode, savep ? mem : reg, savep ? reg : mem); } if (savep && lr) { rtx addr, reg, mem; reg = gen_rtx_REG (Pmode, 0); addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->lr_save_offset)); mem = gen_frame_mem (Pmode, addr); RTVEC_ELT (p, i + offset) = gen_rtx_SET (VOIDmode, mem, reg); } return gen_rtx_PARALLEL (VOIDmode, p); } /* Determine whether the gp REG is really used. */ static bool rs6000_reg_live_or_pic_offset_p (int reg) { return ((df_regs_ever_live_p (reg) && (!call_used_regs[reg] || (reg == RS6000_PIC_OFFSET_TABLE_REGNUM && TARGET_TOC && TARGET_MINIMAL_TOC))) || (reg == RS6000_PIC_OFFSET_TABLE_REGNUM && ((DEFAULT_ABI == ABI_V4 && flag_pic != 0) || (DEFAULT_ABI == ABI_DARWIN && flag_pic)))); } enum { SAVRES_MULTIPLE = 0x1, SAVRES_INLINE_FPRS = 0x2, SAVRES_INLINE_GPRS = 0x4, SAVRES_NOINLINE_GPRS_SAVES_LR = 0x8, SAVRES_NOINLINE_FPRS_SAVES_LR = 0x10, SAVRES_NOINLINE_FPRS_DOESNT_RESTORE_LR = 0x20 }; /* Determine the strategy for savings/restoring registers. */ static int rs6000_savres_strategy (rs6000_stack_t *info, bool savep, int using_static_chain_p, int sibcall) { bool using_multiple_p; bool common; bool savres_fprs_inline; bool savres_gprs_inline; bool noclobber_global_gprs = no_global_regs_above (info->first_gp_reg_save, /*gpr=*/true); int strategy; using_multiple_p = (TARGET_MULTIPLE && ! TARGET_POWERPC64 && (!TARGET_SPE_ABI || info->spe_64bit_regs_used == 0) && info->first_gp_reg_save < 31 && noclobber_global_gprs); /* Don't bother to try to save things out-of-line if r11 is occupied by the static chain. It would require too much fiddling and the static chain is rarely used anyway. */ common = (using_static_chain_p || sibcall || crtl->calls_eh_return || !info->lr_save_p || cfun->machine->ra_need_lr || info->total_size > 32767); savres_fprs_inline = (common || info->first_fp_reg_save == 64 || !no_global_regs_above (info->first_fp_reg_save, /*gpr=*/false) /* The out-of-line FP routines use double-precision stores; we can't use those routines if we don't have such stores. */ || (TARGET_HARD_FLOAT && !TARGET_DOUBLE_FLOAT) || FP_SAVE_INLINE (info->first_fp_reg_save)); savres_gprs_inline = (common /* Saving CR interferes with the exit routines used on the SPE, so just punt here. */ || (!savep && TARGET_SPE_ABI && info->spe_64bit_regs_used != 0 && info->cr_save_p != 0) || info->first_gp_reg_save == 32 || !noclobber_global_gprs || GP_SAVE_INLINE (info->first_gp_reg_save)); if (savep) /* If we are going to use store multiple, then don't even bother with the out-of-line routines, since the store-multiple instruction will always be smaller. */ savres_gprs_inline = savres_gprs_inline || using_multiple_p; else { /* The situation is more complicated with load multiple. We'd prefer to use the out-of-line routines for restores, since the "exit" out-of-line routines can handle the restore of LR and the frame teardown. But we can only use the out-of-line routines if we know that we've used store multiple or out-of-line routines in the prologue, i.e. if we've saved all the registers from first_gp_reg_save. Otherwise, we risk loading garbage from the stack. Furthermore, we can only use the "exit" out-of-line gpr restore if we haven't saved any fprs. */ bool saved_all = !savres_gprs_inline || using_multiple_p; if (saved_all && info->first_fp_reg_save != 64) /* We can't use the exit routine; use load multiple if it's available. */ savres_gprs_inline = savres_gprs_inline || using_multiple_p; } strategy = (using_multiple_p | (savres_fprs_inline << 1) | (savres_gprs_inline << 2)); #ifdef POWERPC_LINUX if (TARGET_64BIT) { if (!savres_fprs_inline) strategy |= SAVRES_NOINLINE_FPRS_SAVES_LR; else if (!savres_gprs_inline && info->first_fp_reg_save == 64) strategy |= SAVRES_NOINLINE_GPRS_SAVES_LR; } #else if (TARGET_AIX && !savres_fprs_inline) strategy |= SAVRES_NOINLINE_FPRS_DOESNT_RESTORE_LR; #endif return strategy; } /* Emit function prologue as insns. */ void rs6000_emit_prologue (void) { rs6000_stack_t *info = rs6000_stack_info (); enum machine_mode reg_mode = Pmode; int reg_size = TARGET_32BIT ? 4 : 8; rtx sp_reg_rtx = gen_rtx_REG (Pmode, STACK_POINTER_REGNUM); rtx frame_ptr_rtx = gen_rtx_REG (Pmode, 12); rtx frame_reg_rtx = sp_reg_rtx; rtx cr_save_rtx = NULL_RTX; rtx insn; int strategy; int saving_FPRs_inline; int saving_GPRs_inline; int using_store_multiple; int using_static_chain_p = (cfun->static_chain_decl != NULL_TREE && df_regs_ever_live_p (STATIC_CHAIN_REGNUM) && call_used_regs[STATIC_CHAIN_REGNUM]); HOST_WIDE_INT sp_offset = 0; if (TARGET_FIX_AND_CONTINUE) { /* gdb on darwin arranges to forward a function from the old address by modifying the first 5 instructions of the function to branch to the overriding function. This is necessary to permit function pointers that point to the old function to actually forward to the new function. */ emit_insn (gen_nop ()); emit_insn (gen_nop ()); emit_insn (gen_nop ()); emit_insn (gen_nop ()); emit_insn (gen_nop ()); } if (TARGET_SPE_ABI && info->spe_64bit_regs_used != 0) { reg_mode = V2SImode; reg_size = 8; } strategy = rs6000_savres_strategy (info, /*savep=*/true, /*static_chain_p=*/using_static_chain_p, /*sibcall=*/0); using_store_multiple = strategy & SAVRES_MULTIPLE; saving_FPRs_inline = strategy & SAVRES_INLINE_FPRS; saving_GPRs_inline = strategy & SAVRES_INLINE_GPRS; /* For V.4, update stack before we do any saving and set back pointer. */ if (! WORLD_SAVE_P (info) && info->push_p && (DEFAULT_ABI == ABI_V4 || crtl->calls_eh_return)) { bool need_r11 = (TARGET_SPE ? (!saving_GPRs_inline && info->spe_64bit_regs_used == 0) : (!saving_FPRs_inline || !saving_GPRs_inline)); rtx copy_reg = need_r11 ? gen_rtx_REG (Pmode, 11) : NULL; if (info->total_size < 32767) sp_offset = info->total_size; else if (need_r11) frame_reg_rtx = copy_reg; else if (info->cr_save_p || info->lr_save_p || info->first_fp_reg_save < 64 || info->first_gp_reg_save < 32 || info->altivec_size != 0 || info->vrsave_mask != 0 || crtl->calls_eh_return) { copy_reg = frame_ptr_rtx; frame_reg_rtx = copy_reg; } else { /* The prologue won't be saving any regs so there is no need to set up a frame register to access any frame save area. We also won't be using sp_offset anywhere below, but set the correct value anyway to protect against future changes to this function. */ sp_offset = info->total_size; } rs6000_emit_allocate_stack (info->total_size, copy_reg); if (frame_reg_rtx != sp_reg_rtx) rs6000_emit_stack_tie (); } /* Handle world saves specially here. */ if (WORLD_SAVE_P (info)) { int i, j, sz; rtx treg; rtvec p; rtx reg0; /* save_world expects lr in r0. */ reg0 = gen_rtx_REG (Pmode, 0); if (info->lr_save_p) { insn = emit_move_insn (reg0, gen_rtx_REG (Pmode, LR_REGNO)); RTX_FRAME_RELATED_P (insn) = 1; } /* The SAVE_WORLD and RESTORE_WORLD routines make a number of assumptions about the offsets of various bits of the stack frame. */ gcc_assert (info->gp_save_offset == -220 && info->fp_save_offset == -144 && info->lr_save_offset == 8 && info->cr_save_offset == 4 && info->push_p && info->lr_save_p && (!crtl->calls_eh_return || info->ehrd_offset == -432) && info->vrsave_save_offset == -224 && info->altivec_save_offset == -416); treg = gen_rtx_REG (SImode, 11); emit_move_insn (treg, GEN_INT (-info->total_size)); /* SAVE_WORLD takes the caller's LR in R0 and the frame size in R11. It also clobbers R12, so beware! */ /* Preserve CR2 for save_world prologues */ sz = 5; sz += 32 - info->first_gp_reg_save; sz += 64 - info->first_fp_reg_save; sz += LAST_ALTIVEC_REGNO - info->first_altivec_reg_save + 1; p = rtvec_alloc (sz); j = 0; RTVEC_ELT (p, j++) = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, LR_REGNO)); RTVEC_ELT (p, j++) = gen_rtx_USE (VOIDmode, gen_rtx_SYMBOL_REF (Pmode, "*save_world")); /* We do floats first so that the instruction pattern matches properly. */ for (i = 0; i < 64 - info->first_fp_reg_save; i++) { rtx reg = gen_rtx_REG (((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode), info->first_fp_reg_save + i); rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->fp_save_offset + sp_offset + 8 * i)); rtx mem = gen_frame_mem (((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode), addr); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, mem, reg); } for (i = 0; info->first_altivec_reg_save + i <= LAST_ALTIVEC_REGNO; i++) { rtx reg = gen_rtx_REG (V4SImode, info->first_altivec_reg_save + i); rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->altivec_save_offset + sp_offset + 16 * i)); rtx mem = gen_frame_mem (V4SImode, addr); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, mem, reg); } for (i = 0; i < 32 - info->first_gp_reg_save; i++) { rtx reg = gen_rtx_REG (reg_mode, info->first_gp_reg_save + i); rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->gp_save_offset + sp_offset + reg_size * i)); rtx mem = gen_frame_mem (reg_mode, addr); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, mem, reg); } { /* CR register traditionally saved as CR2. */ rtx reg = gen_rtx_REG (reg_mode, CR2_REGNO); rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->cr_save_offset + sp_offset)); rtx mem = gen_frame_mem (reg_mode, addr); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, mem, reg); } /* Explain about use of R0. */ if (info->lr_save_p) { rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->lr_save_offset + sp_offset)); rtx mem = gen_frame_mem (reg_mode, addr); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, mem, reg0); } /* Explain what happens to the stack pointer. */ { rtx newval = gen_rtx_PLUS (Pmode, sp_reg_rtx, treg); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, sp_reg_rtx, newval); } insn = emit_insn (gen_rtx_PARALLEL (VOIDmode, p)); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, treg, GEN_INT (-info->total_size)); sp_offset = info->total_size; } /* If we use the link register, get it into r0. */ if (!WORLD_SAVE_P (info) && info->lr_save_p) { rtx addr, reg, mem; insn = emit_move_insn (gen_rtx_REG (Pmode, 0), gen_rtx_REG (Pmode, LR_REGNO)); RTX_FRAME_RELATED_P (insn) = 1; if (!(strategy & (SAVRES_NOINLINE_GPRS_SAVES_LR | SAVRES_NOINLINE_FPRS_SAVES_LR))) { addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->lr_save_offset + sp_offset)); reg = gen_rtx_REG (Pmode, 0); mem = gen_rtx_MEM (Pmode, addr); /* This should not be of rs6000_sr_alias_set, because of __builtin_return_address. */ insn = emit_move_insn (mem, reg); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, NULL_RTX, NULL_RTX); } } /* If we need to save CR, put it into r12 or r11. */ if (!WORLD_SAVE_P (info) && info->cr_save_p && frame_reg_rtx != frame_ptr_rtx) { rtx set; cr_save_rtx = gen_rtx_REG (SImode, DEFAULT_ABI == ABI_AIX && !saving_GPRs_inline ? 11 : 12); insn = emit_insn (gen_movesi_from_cr (cr_save_rtx)); RTX_FRAME_RELATED_P (insn) = 1; /* Now, there's no way that dwarf2out_frame_debug_expr is going to understand '(unspec:SI [(reg:CC 68) ...] UNSPEC_MOVESI_FROM_CR)'. But that's OK. All we have to do is specify that _one_ condition code register is saved in this stack slot. The thrower's epilogue will then restore all the call-saved registers. We use CR2_REGNO (70) to be compatible with gcc-2.95 on Linux. */ set = gen_rtx_SET (VOIDmode, cr_save_rtx, gen_rtx_REG (SImode, CR2_REGNO)); add_reg_note (insn, REG_FRAME_RELATED_EXPR, set); } /* Do any required saving of fpr's. If only one or two to save, do it ourselves. Otherwise, call function. */ if (!WORLD_SAVE_P (info) && saving_FPRs_inline) { int i; for (i = 0; i < 64 - info->first_fp_reg_save; i++) if ((df_regs_ever_live_p (info->first_fp_reg_save+i) && ! call_used_regs[info->first_fp_reg_save+i])) emit_frame_save (frame_reg_rtx, frame_ptr_rtx, (TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode, info->first_fp_reg_save + i, info->fp_save_offset + sp_offset + 8 * i, info->total_size); } else if (!WORLD_SAVE_P (info) && info->first_fp_reg_save != 64) { rtx par; par = rs6000_make_savres_rtx (info, frame_reg_rtx, info->fp_save_offset + sp_offset, DFmode, /*savep=*/true, /*gpr=*/false, /*lr=*/(strategy & SAVRES_NOINLINE_FPRS_SAVES_LR) != 0); insn = emit_insn (par); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, NULL_RTX, NULL_RTX); } /* Save GPRs. This is done as a PARALLEL if we are using the store-multiple instructions. */ if (!WORLD_SAVE_P (info) && TARGET_SPE_ABI && info->spe_64bit_regs_used != 0 && info->first_gp_reg_save != 32) { int i; rtx spe_save_area_ptr; /* Determine whether we can address all of the registers that need to be saved with an offset from the stack pointer that fits in the small const field for SPE memory instructions. */ int spe_regs_addressable_via_sp = (SPE_CONST_OFFSET_OK(info->spe_gp_save_offset + sp_offset + (32 - info->first_gp_reg_save - 1) * reg_size) && saving_GPRs_inline); int spe_offset; if (spe_regs_addressable_via_sp) { spe_save_area_ptr = frame_reg_rtx; spe_offset = info->spe_gp_save_offset + sp_offset; } else { /* Make r11 point to the start of the SPE save area. We need to be careful here if r11 is holding the static chain. If it is, then temporarily save it in r0. We would use r0 as our base register here, but using r0 as a base register in loads and stores means something different from what we would like. */ int ool_adjust = (saving_GPRs_inline ? 0 : (info->first_gp_reg_save - (FIRST_SAVRES_REGISTER+1))*8); HOST_WIDE_INT offset = (info->spe_gp_save_offset + sp_offset - ool_adjust); if (using_static_chain_p) { rtx r0 = gen_rtx_REG (Pmode, 0); gcc_assert (info->first_gp_reg_save > 11); emit_move_insn (r0, gen_rtx_REG (Pmode, 11)); } spe_save_area_ptr = gen_rtx_REG (Pmode, 11); insn = emit_insn (gen_addsi3 (spe_save_area_ptr, frame_reg_rtx, GEN_INT (offset))); /* We need to make sure the move to r11 gets noted for properly outputting unwind information. */ if (!saving_GPRs_inline) rs6000_frame_related (insn, frame_reg_rtx, offset, NULL_RTX, NULL_RTX); spe_offset = 0; } if (saving_GPRs_inline) { for (i = 0; i < 32 - info->first_gp_reg_save; i++) if (rs6000_reg_live_or_pic_offset_p (info->first_gp_reg_save + i)) { rtx reg = gen_rtx_REG (reg_mode, info->first_gp_reg_save + i); rtx offset, addr, mem; /* We're doing all this to ensure that the offset fits into the immediate offset of 'evstdd'. */ gcc_assert (SPE_CONST_OFFSET_OK (reg_size * i + spe_offset)); offset = GEN_INT (reg_size * i + spe_offset); addr = gen_rtx_PLUS (Pmode, spe_save_area_ptr, offset); mem = gen_rtx_MEM (V2SImode, addr); insn = emit_move_insn (mem, reg); rs6000_frame_related (insn, spe_save_area_ptr, info->spe_gp_save_offset + sp_offset + reg_size * i, offset, const0_rtx); } } else { rtx par; par = rs6000_make_savres_rtx (info, gen_rtx_REG (Pmode, 11), 0, reg_mode, /*savep=*/true, /*gpr=*/true, /*lr=*/false); insn = emit_insn (par); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, NULL_RTX, NULL_RTX); } /* Move the static chain pointer back. */ if (using_static_chain_p && !spe_regs_addressable_via_sp) emit_move_insn (gen_rtx_REG (Pmode, 11), gen_rtx_REG (Pmode, 0)); } else if (!WORLD_SAVE_P (info) && !saving_GPRs_inline) { rtx par; /* Need to adjust r11 (r12) if we saved any FPRs. */ if (info->first_fp_reg_save != 64) { rtx dest_reg = gen_rtx_REG (reg_mode, DEFAULT_ABI == ABI_AIX ? 12 : 11); rtx offset = GEN_INT (sp_offset + (-8 * (64-info->first_fp_reg_save))); emit_insn (gen_add3_insn (dest_reg, frame_reg_rtx, offset)); } par = rs6000_make_savres_rtx (info, frame_reg_rtx, info->gp_save_offset + sp_offset, reg_mode, /*savep=*/true, /*gpr=*/true, /*lr=*/(strategy & SAVRES_NOINLINE_GPRS_SAVES_LR) != 0); insn = emit_insn (par); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, NULL_RTX, NULL_RTX); } else if (!WORLD_SAVE_P (info) && using_store_multiple) { rtvec p; int i; p = rtvec_alloc (32 - info->first_gp_reg_save); for (i = 0; i < 32 - info->first_gp_reg_save; i++) { rtx addr, reg, mem; reg = gen_rtx_REG (reg_mode, info->first_gp_reg_save + i); addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->gp_save_offset + sp_offset + reg_size * i)); mem = gen_frame_mem (reg_mode, addr); RTVEC_ELT (p, i) = gen_rtx_SET (VOIDmode, mem, reg); } insn = emit_insn (gen_rtx_PARALLEL (VOIDmode, p)); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, NULL_RTX, NULL_RTX); } else if (!WORLD_SAVE_P (info)) { int i; for (i = 0; i < 32 - info->first_gp_reg_save; i++) if (rs6000_reg_live_or_pic_offset_p (info->first_gp_reg_save + i)) { rtx addr, reg, mem; reg = gen_rtx_REG (reg_mode, info->first_gp_reg_save + i); addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->gp_save_offset + sp_offset + reg_size * i)); mem = gen_frame_mem (reg_mode, addr); insn = emit_move_insn (mem, reg); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, NULL_RTX, NULL_RTX); } } /* ??? There's no need to emit actual instructions here, but it's the easiest way to get the frame unwind information emitted. */ if (crtl->calls_eh_return) { unsigned int i, regno; /* In AIX ABI we need to pretend we save r2 here. */ if (TARGET_AIX) { rtx addr, reg, mem; reg = gen_rtx_REG (reg_mode, 2); addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (sp_offset + 5 * reg_size)); mem = gen_frame_mem (reg_mode, addr); insn = emit_move_insn (mem, reg); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, NULL_RTX, NULL_RTX); PATTERN (insn) = gen_blockage (); } for (i = 0; ; ++i) { regno = EH_RETURN_DATA_REGNO (i); if (regno == INVALID_REGNUM) break; emit_frame_save (frame_reg_rtx, frame_ptr_rtx, reg_mode, regno, info->ehrd_offset + sp_offset + reg_size * (int) i, info->total_size); } } /* Save CR if we use any that must be preserved. */ if (!WORLD_SAVE_P (info) && info->cr_save_p) { rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->cr_save_offset + sp_offset)); rtx mem = gen_frame_mem (SImode, addr); /* See the large comment above about why CR2_REGNO is used. */ rtx magic_eh_cr_reg = gen_rtx_REG (SImode, CR2_REGNO); /* If r12 was used to hold the original sp, copy cr into r0 now that it's free. */ if (REGNO (frame_reg_rtx) == 12) { rtx set; cr_save_rtx = gen_rtx_REG (SImode, 0); insn = emit_insn (gen_movesi_from_cr (cr_save_rtx)); RTX_FRAME_RELATED_P (insn) = 1; set = gen_rtx_SET (VOIDmode, cr_save_rtx, magic_eh_cr_reg); add_reg_note (insn, REG_FRAME_RELATED_EXPR, set); } insn = emit_move_insn (mem, cr_save_rtx); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, NULL_RTX, NULL_RTX); } /* Update stack and set back pointer unless this is V.4, for which it was done previously. */ if (!WORLD_SAVE_P (info) && info->push_p && !(DEFAULT_ABI == ABI_V4 || crtl->calls_eh_return)) { rtx copy_reg = NULL; if (info->total_size < 32767) sp_offset = info->total_size; else if (info->altivec_size != 0 || info->vrsave_mask != 0) { copy_reg = frame_ptr_rtx; frame_reg_rtx = copy_reg; } else sp_offset = info->total_size; rs6000_emit_allocate_stack (info->total_size, copy_reg); if (frame_reg_rtx != sp_reg_rtx) rs6000_emit_stack_tie (); } /* Set frame pointer, if needed. */ if (frame_pointer_needed) { insn = emit_move_insn (gen_rtx_REG (Pmode, HARD_FRAME_POINTER_REGNUM), sp_reg_rtx); RTX_FRAME_RELATED_P (insn) = 1; } /* Save AltiVec registers if needed. Save here because the red zone does not include AltiVec registers. */ if (!WORLD_SAVE_P (info) && TARGET_ALTIVEC_ABI && info->altivec_size != 0) { int i; /* There should be a non inline version of this, for when we are saving lots of vector registers. */ for (i = info->first_altivec_reg_save; i <= LAST_ALTIVEC_REGNO; ++i) if (info->vrsave_mask & ALTIVEC_REG_BIT (i)) { rtx areg, savereg, mem; int offset; offset = info->altivec_save_offset + sp_offset + 16 * (i - info->first_altivec_reg_save); savereg = gen_rtx_REG (V4SImode, i); areg = gen_rtx_REG (Pmode, 0); emit_move_insn (areg, GEN_INT (offset)); /* AltiVec addressing mode is [reg+reg]. */ mem = gen_frame_mem (V4SImode, gen_rtx_PLUS (Pmode, frame_reg_rtx, areg)); insn = emit_move_insn (mem, savereg); rs6000_frame_related (insn, frame_ptr_rtx, info->total_size, areg, GEN_INT (offset)); } } /* VRSAVE is a bit vector representing which AltiVec registers are used. The OS uses this to determine which vector registers to save on a context switch. We need to save VRSAVE on the stack frame, add whatever AltiVec registers we used in this function, and do the corresponding magic in the epilogue. */ if (TARGET_ALTIVEC && TARGET_ALTIVEC_VRSAVE && info->vrsave_mask != 0) { rtx reg, mem, vrsave; int offset; /* Get VRSAVE onto a GPR. Note that ABI_V4 might be using r12 as frame_reg_rtx and r11 as the static chain pointer for nested functions. */ reg = gen_rtx_REG (SImode, 0); vrsave = gen_rtx_REG (SImode, VRSAVE_REGNO); if (TARGET_MACHO) emit_insn (gen_get_vrsave_internal (reg)); else emit_insn (gen_rtx_SET (VOIDmode, reg, vrsave)); if (!WORLD_SAVE_P (info)) { /* Save VRSAVE. */ offset = info->vrsave_save_offset + sp_offset; mem = gen_frame_mem (SImode, gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (offset))); insn = emit_move_insn (mem, reg); } /* Include the registers in the mask. */ emit_insn (gen_iorsi3 (reg, reg, GEN_INT ((int) info->vrsave_mask))); insn = emit_insn (generate_set_vrsave (reg, info, 0)); } /* If we are using RS6000_PIC_OFFSET_TABLE_REGNUM, we need to set it up. */ if ((TARGET_TOC && TARGET_MINIMAL_TOC && get_pool_size () != 0) || (DEFAULT_ABI == ABI_V4 && (flag_pic == 1 || (flag_pic && TARGET_SECURE_PLT)) && df_regs_ever_live_p (RS6000_PIC_OFFSET_TABLE_REGNUM))) { /* If emit_load_toc_table will use the link register, we need to save it. We use R12 for this purpose because emit_load_toc_table can use register 0. This allows us to use a plain 'blr' to return from the procedure more often. */ int save_LR_around_toc_setup = (TARGET_ELF && DEFAULT_ABI != ABI_AIX && flag_pic && ! info->lr_save_p && EDGE_COUNT (EXIT_BLOCK_PTR->preds) > 0); if (save_LR_around_toc_setup) { rtx lr = gen_rtx_REG (Pmode, LR_REGNO); insn = emit_move_insn (frame_ptr_rtx, lr); RTX_FRAME_RELATED_P (insn) = 1; rs6000_emit_load_toc_table (TRUE); insn = emit_move_insn (lr, frame_ptr_rtx); RTX_FRAME_RELATED_P (insn) = 1; } else rs6000_emit_load_toc_table (TRUE); } #if TARGET_MACHO if (DEFAULT_ABI == ABI_DARWIN && flag_pic && crtl->uses_pic_offset_table) { rtx lr = gen_rtx_REG (Pmode, LR_REGNO); rtx src = gen_rtx_SYMBOL_REF (Pmode, MACHOPIC_FUNCTION_BASE_NAME); /* Save and restore LR locally around this call (in R0). */ if (!info->lr_save_p) emit_move_insn (gen_rtx_REG (Pmode, 0), lr); emit_insn (gen_load_macho_picbase (src)); emit_move_insn (gen_rtx_REG (Pmode, RS6000_PIC_OFFSET_TABLE_REGNUM), lr); if (!info->lr_save_p) emit_move_insn (lr, gen_rtx_REG (Pmode, 0)); } #endif } /* Write function prologue. */ static void rs6000_output_function_prologue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED) { rs6000_stack_t *info = rs6000_stack_info (); if (TARGET_DEBUG_STACK) debug_stack_info (info); /* Write .extern for any function we will call to save and restore fp values. */ if (info->first_fp_reg_save < 64 && !FP_SAVE_INLINE (info->first_fp_reg_save)) { char *name; int regno = info->first_fp_reg_save - 32; name = rs6000_savres_routine_name (info, regno, /*savep=*/true, /*gpr=*/false, /*lr=*/false); fprintf (file, "\t.extern %s\n", name); name = rs6000_savres_routine_name (info, regno, /*savep=*/false, /*gpr=*/false, /*lr=*/true); fprintf (file, "\t.extern %s\n", name); } /* Write .extern for AIX common mode routines, if needed. */ if (! TARGET_POWER && ! TARGET_POWERPC && ! common_mode_defined) { fputs ("\t.extern __mulh\n", file); fputs ("\t.extern __mull\n", file); fputs ("\t.extern __divss\n", file); fputs ("\t.extern __divus\n", file); fputs ("\t.extern __quoss\n", file); fputs ("\t.extern __quous\n", file); common_mode_defined = 1; } if (! HAVE_prologue) { rtx prologue; start_sequence (); /* A NOTE_INSN_DELETED is supposed to be at the start and end of the "toplevel" insn chain. */ emit_note (NOTE_INSN_DELETED); rs6000_emit_prologue (); emit_note (NOTE_INSN_DELETED); /* Expand INSN_ADDRESSES so final() doesn't crash. */ { rtx insn; unsigned addr = 0; for (insn = get_insns (); insn != 0; insn = NEXT_INSN (insn)) { INSN_ADDRESSES_NEW (insn, addr); addr += 4; } } prologue = get_insns (); end_sequence (); if (TARGET_DEBUG_STACK) debug_rtx_list (prologue, 100); emit_insn_before_noloc (prologue, BB_HEAD (ENTRY_BLOCK_PTR->next_bb), ENTRY_BLOCK_PTR); } rs6000_pic_labelno++; } /* Non-zero if vmx regs are restored before the frame pop, zero if we restore after the pop when possible. */ #define ALWAYS_RESTORE_ALTIVEC_BEFORE_POP 0 /* Reload CR from REG. */ static void rs6000_restore_saved_cr (rtx reg, int using_mfcr_multiple) { int count = 0; int i; if (using_mfcr_multiple) { for (i = 0; i < 8; i++) if (df_regs_ever_live_p (CR0_REGNO+i) && ! call_used_regs[CR0_REGNO+i]) count++; gcc_assert (count); } if (using_mfcr_multiple && count > 1) { rtvec p; int ndx; p = rtvec_alloc (count); ndx = 0; for (i = 0; i < 8; i++) if (df_regs_ever_live_p (CR0_REGNO+i) && ! call_used_regs[CR0_REGNO+i]) { rtvec r = rtvec_alloc (2); RTVEC_ELT (r, 0) = reg; RTVEC_ELT (r, 1) = GEN_INT (1 << (7-i)); RTVEC_ELT (p, ndx) = gen_rtx_SET (VOIDmode, gen_rtx_REG (CCmode, CR0_REGNO+i), gen_rtx_UNSPEC (CCmode, r, UNSPEC_MOVESI_TO_CR)); ndx++; } emit_insn (gen_rtx_PARALLEL (VOIDmode, p)); gcc_assert (ndx == count); } else for (i = 0; i < 8; i++) if (df_regs_ever_live_p (CR0_REGNO+i) && ! call_used_regs[CR0_REGNO+i]) { emit_insn (gen_movsi_to_cr_one (gen_rtx_REG (CCmode, CR0_REGNO+i), reg)); } } /* Return true if OFFSET from stack pointer can be clobbered by signals. V.4 doesn't have any stack cushion, AIX ABIs have 220 or 288 bytes below stack pointer not cloberred by signals. */ static inline bool offset_below_red_zone_p (HOST_WIDE_INT offset) { return offset < (DEFAULT_ABI == ABI_V4 ? 0 : TARGET_32BIT ? -220 : -288); } /* Emit function epilogue as insns. */ void rs6000_emit_epilogue (int sibcall) { rs6000_stack_t *info; int restoring_GPRs_inline; int restoring_FPRs_inline; int using_load_multiple; int using_mtcr_multiple; int use_backchain_to_restore_sp; int restore_lr; int strategy; int sp_offset = 0; rtx sp_reg_rtx = gen_rtx_REG (Pmode, 1); rtx frame_reg_rtx = sp_reg_rtx; rtx cfa_restores = NULL_RTX; rtx insn; rtx cr_save_reg = NULL_RTX; enum machine_mode reg_mode = Pmode; int reg_size = TARGET_32BIT ? 4 : 8; int i; info = rs6000_stack_info (); if (TARGET_SPE_ABI && info->spe_64bit_regs_used != 0) { reg_mode = V2SImode; reg_size = 8; } strategy = rs6000_savres_strategy (info, /*savep=*/false, /*static_chain_p=*/0, sibcall); using_load_multiple = strategy & SAVRES_MULTIPLE; restoring_FPRs_inline = strategy & SAVRES_INLINE_FPRS; restoring_GPRs_inline = strategy & SAVRES_INLINE_GPRS; using_mtcr_multiple = (rs6000_cpu == PROCESSOR_PPC601 || rs6000_cpu == PROCESSOR_PPC603 || rs6000_cpu == PROCESSOR_PPC750 || optimize_size); /* Restore via the backchain when we have a large frame, since this is more efficient than an addis, addi pair. The second condition here will not trigger at the moment; We don't actually need a frame pointer for alloca, but the generic parts of the compiler give us one anyway. */ use_backchain_to_restore_sp = (info->total_size > 32767 || info->total_size + (info->lr_save_p ? info->lr_save_offset : 0) > 32767 || (cfun->calls_alloca && !frame_pointer_needed)); restore_lr = (info->lr_save_p && (restoring_FPRs_inline || (strategy & SAVRES_NOINLINE_FPRS_DOESNT_RESTORE_LR)) && (restoring_GPRs_inline || info->first_fp_reg_save < 64)); if (WORLD_SAVE_P (info)) { int i, j; char rname[30]; const char *alloc_rname; rtvec p; /* eh_rest_world_r10 will return to the location saved in the LR stack slot (which is not likely to be our caller.) Input: R10 -- stack adjustment. Clobbers R0, R11, R12, R7, R8. rest_world is similar, except any R10 parameter is ignored. The exception-handling stuff that was here in 2.95 is no longer necessary. */ p = rtvec_alloc (9 + 1 + 32 - info->first_gp_reg_save + LAST_ALTIVEC_REGNO + 1 - info->first_altivec_reg_save + 63 + 1 - info->first_fp_reg_save); strcpy (rname, ((crtl->calls_eh_return) ? "*eh_rest_world_r10" : "*rest_world")); alloc_rname = ggc_strdup (rname); j = 0; RTVEC_ELT (p, j++) = gen_rtx_RETURN (VOIDmode); RTVEC_ELT (p, j++) = gen_rtx_USE (VOIDmode, gen_rtx_REG (Pmode, LR_REGNO)); RTVEC_ELT (p, j++) = gen_rtx_USE (VOIDmode, gen_rtx_SYMBOL_REF (Pmode, alloc_rname)); /* The instruction pattern requires a clobber here; it is shared with the restVEC helper. */ RTVEC_ELT (p, j++) = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, 11)); { /* CR register traditionally saved as CR2. */ rtx reg = gen_rtx_REG (reg_mode, CR2_REGNO); rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->cr_save_offset)); rtx mem = gen_frame_mem (reg_mode, addr); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, reg, mem); } for (i = 0; i < 32 - info->first_gp_reg_save; i++) { rtx reg = gen_rtx_REG (reg_mode, info->first_gp_reg_save + i); rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->gp_save_offset + reg_size * i)); rtx mem = gen_frame_mem (reg_mode, addr); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, reg, mem); } for (i = 0; info->first_altivec_reg_save + i <= LAST_ALTIVEC_REGNO; i++) { rtx reg = gen_rtx_REG (V4SImode, info->first_altivec_reg_save + i); rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->altivec_save_offset + 16 * i)); rtx mem = gen_frame_mem (V4SImode, addr); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, reg, mem); } for (i = 0; info->first_fp_reg_save + i <= 63; i++) { rtx reg = gen_rtx_REG (((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode), info->first_fp_reg_save + i); rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->fp_save_offset + 8 * i)); rtx mem = gen_frame_mem (((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode), addr); RTVEC_ELT (p, j++) = gen_rtx_SET (VOIDmode, reg, mem); } RTVEC_ELT (p, j++) = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, 0)); RTVEC_ELT (p, j++) = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, 12)); RTVEC_ELT (p, j++) = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, 7)); RTVEC_ELT (p, j++) = gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (SImode, 8)); RTVEC_ELT (p, j++) = gen_rtx_USE (VOIDmode, gen_rtx_REG (SImode, 10)); emit_jump_insn (gen_rtx_PARALLEL (VOIDmode, p)); return; } /* frame_reg_rtx + sp_offset points to the top of this stack frame. */ if (info->push_p) sp_offset = info->total_size; /* Restore AltiVec registers if we must do so before adjusting the stack. */ if (TARGET_ALTIVEC_ABI && info->altivec_size != 0 && (ALWAYS_RESTORE_ALTIVEC_BEFORE_POP || (DEFAULT_ABI != ABI_V4 && offset_below_red_zone_p (info->altivec_save_offset)))) { int i; if (use_backchain_to_restore_sp) { frame_reg_rtx = gen_rtx_REG (Pmode, 11); emit_move_insn (frame_reg_rtx, gen_rtx_MEM (Pmode, sp_reg_rtx)); sp_offset = 0; } else if (frame_pointer_needed) frame_reg_rtx = hard_frame_pointer_rtx; for (i = info->first_altivec_reg_save; i <= LAST_ALTIVEC_REGNO; ++i) if (info->vrsave_mask & ALTIVEC_REG_BIT (i)) { rtx addr, areg, mem, reg; areg = gen_rtx_REG (Pmode, 0); emit_move_insn (areg, GEN_INT (info->altivec_save_offset + sp_offset + 16 * (i - info->first_altivec_reg_save))); /* AltiVec addressing mode is [reg+reg]. */ addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, areg); mem = gen_frame_mem (V4SImode, addr); reg = gen_rtx_REG (V4SImode, i); emit_move_insn (reg, mem); if (offset_below_red_zone_p (info->altivec_save_offset + (i - info->first_altivec_reg_save) * 16)) cfa_restores = alloc_reg_note (REG_CFA_RESTORE, reg, cfa_restores); } } /* Restore VRSAVE if we must do so before adjusting the stack. */ if (TARGET_ALTIVEC && TARGET_ALTIVEC_VRSAVE && info->vrsave_mask != 0 && (ALWAYS_RESTORE_ALTIVEC_BEFORE_POP || (DEFAULT_ABI != ABI_V4 && offset_below_red_zone_p (info->vrsave_save_offset)))) { rtx addr, mem, reg; if (frame_reg_rtx == sp_reg_rtx) { if (use_backchain_to_restore_sp) { frame_reg_rtx = gen_rtx_REG (Pmode, 11); emit_move_insn (frame_reg_rtx, gen_rtx_MEM (Pmode, sp_reg_rtx)); sp_offset = 0; } else if (frame_pointer_needed) frame_reg_rtx = hard_frame_pointer_rtx; } addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->vrsave_save_offset + sp_offset)); mem = gen_frame_mem (SImode, addr); reg = gen_rtx_REG (SImode, 12); emit_move_insn (reg, mem); emit_insn (generate_set_vrsave (reg, info, 1)); } insn = NULL_RTX; /* If we have a large stack frame, restore the old stack pointer using the backchain. */ if (use_backchain_to_restore_sp) { if (frame_reg_rtx == sp_reg_rtx) { /* Under V.4, don't reset the stack pointer until after we're done loading the saved registers. */ if (DEFAULT_ABI == ABI_V4) frame_reg_rtx = gen_rtx_REG (Pmode, 11); insn = emit_move_insn (frame_reg_rtx, gen_rtx_MEM (Pmode, sp_reg_rtx)); sp_offset = 0; } else if (ALWAYS_RESTORE_ALTIVEC_BEFORE_POP && DEFAULT_ABI == ABI_V4) /* frame_reg_rtx has been set up by the altivec restore. */ ; else { insn = emit_move_insn (sp_reg_rtx, frame_reg_rtx); frame_reg_rtx = sp_reg_rtx; } } /* If we have a frame pointer, we can restore the old stack pointer from it. */ else if (frame_pointer_needed) { frame_reg_rtx = sp_reg_rtx; if (DEFAULT_ABI == ABI_V4) frame_reg_rtx = gen_rtx_REG (Pmode, 11); /* Prevent reordering memory accesses against stack pointer restore. */ else if (cfun->calls_alloca || offset_below_red_zone_p (-info->total_size)) { rtx mem1 = gen_rtx_MEM (BLKmode, hard_frame_pointer_rtx); rtx mem2 = gen_rtx_MEM (BLKmode, sp_reg_rtx); MEM_NOTRAP_P (mem1) = 1; MEM_NOTRAP_P (mem2) = 1; emit_insn (gen_frame_tie (mem1, mem2)); } insn = emit_insn (gen_add3_insn (frame_reg_rtx, hard_frame_pointer_rtx, GEN_INT (info->total_size))); sp_offset = 0; } else if (info->push_p && DEFAULT_ABI != ABI_V4 && !crtl->calls_eh_return) { /* Prevent reordering memory accesses against stack pointer restore. */ if (cfun->calls_alloca || offset_below_red_zone_p (-info->total_size)) { rtx mem = gen_rtx_MEM (BLKmode, sp_reg_rtx); MEM_NOTRAP_P (mem) = 1; emit_insn (gen_stack_tie (mem)); } insn = emit_insn (gen_add3_insn (sp_reg_rtx, sp_reg_rtx, GEN_INT (info->total_size))); sp_offset = 0; } if (insn && frame_reg_rtx == sp_reg_rtx) { if (cfa_restores) { REG_NOTES (insn) = cfa_restores; cfa_restores = NULL_RTX; } add_reg_note (insn, REG_CFA_DEF_CFA, sp_reg_rtx); RTX_FRAME_RELATED_P (insn) = 1; } /* Restore AltiVec registers if we have not done so already. */ if (!ALWAYS_RESTORE_ALTIVEC_BEFORE_POP && TARGET_ALTIVEC_ABI && info->altivec_size != 0 && (DEFAULT_ABI == ABI_V4 || !offset_below_red_zone_p (info->altivec_save_offset))) { int i; for (i = info->first_altivec_reg_save; i <= LAST_ALTIVEC_REGNO; ++i) if (info->vrsave_mask & ALTIVEC_REG_BIT (i)) { rtx addr, areg, mem, reg; areg = gen_rtx_REG (Pmode, 0); emit_move_insn (areg, GEN_INT (info->altivec_save_offset + sp_offset + 16 * (i - info->first_altivec_reg_save))); /* AltiVec addressing mode is [reg+reg]. */ addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, areg); mem = gen_frame_mem (V4SImode, addr); reg = gen_rtx_REG (V4SImode, i); emit_move_insn (reg, mem); if (DEFAULT_ABI == ABI_V4) cfa_restores = alloc_reg_note (REG_CFA_RESTORE, reg, cfa_restores); } } /* Restore VRSAVE if we have not done so already. */ if (!ALWAYS_RESTORE_ALTIVEC_BEFORE_POP && TARGET_ALTIVEC && TARGET_ALTIVEC_VRSAVE && info->vrsave_mask != 0 && (DEFAULT_ABI == ABI_V4 || !offset_below_red_zone_p (info->vrsave_save_offset))) { rtx addr, mem, reg; addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->vrsave_save_offset + sp_offset)); mem = gen_frame_mem (SImode, addr); reg = gen_rtx_REG (SImode, 12); emit_move_insn (reg, mem); emit_insn (generate_set_vrsave (reg, info, 1)); } /* Get the old lr if we saved it. If we are restoring registers out-of-line, then the out-of-line routines can do this for us. */ if (restore_lr && restoring_GPRs_inline) { rtx mem = gen_frame_mem_offset (Pmode, frame_reg_rtx, info->lr_save_offset + sp_offset); emit_move_insn (gen_rtx_REG (Pmode, 0), mem); } /* Get the old cr if we saved it. */ if (info->cr_save_p) { rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->cr_save_offset + sp_offset)); rtx mem = gen_frame_mem (SImode, addr); cr_save_reg = gen_rtx_REG (SImode, DEFAULT_ABI == ABI_AIX && !restoring_GPRs_inline && info->first_fp_reg_save < 64 ? 11 : 12); emit_move_insn (cr_save_reg, mem); } /* Set LR here to try to overlap restores below. LR is always saved above incoming stack, so it never needs REG_CFA_RESTORE. */ if (restore_lr && restoring_GPRs_inline) emit_move_insn (gen_rtx_REG (Pmode, LR_REGNO), gen_rtx_REG (Pmode, 0)); /* Load exception handler data registers, if needed. */ if (crtl->calls_eh_return) { unsigned int i, regno; if (TARGET_AIX) { rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (sp_offset + 5 * reg_size)); rtx mem = gen_frame_mem (reg_mode, addr); emit_move_insn (gen_rtx_REG (reg_mode, 2), mem); } for (i = 0; ; ++i) { rtx mem; regno = EH_RETURN_DATA_REGNO (i); if (regno == INVALID_REGNUM) break; mem = gen_frame_mem_offset (reg_mode, frame_reg_rtx, info->ehrd_offset + sp_offset + reg_size * (int) i); emit_move_insn (gen_rtx_REG (reg_mode, regno), mem); } } /* Restore GPRs. This is done as a PARALLEL if we are using the load-multiple instructions. */ if (TARGET_SPE_ABI && info->spe_64bit_regs_used != 0 && info->first_gp_reg_save != 32) { /* Determine whether we can address all of the registers that need to be saved with an offset from the stack pointer that fits in the small const field for SPE memory instructions. */ int spe_regs_addressable_via_sp = (SPE_CONST_OFFSET_OK(info->spe_gp_save_offset + sp_offset + (32 - info->first_gp_reg_save - 1) * reg_size) && restoring_GPRs_inline); int spe_offset; if (spe_regs_addressable_via_sp) spe_offset = info->spe_gp_save_offset + sp_offset; else { rtx old_frame_reg_rtx = frame_reg_rtx; /* Make r11 point to the start of the SPE save area. We worried about not clobbering it when we were saving registers in the prologue. There's no need to worry here because the static chain is passed anew to every function. */ int ool_adjust = (restoring_GPRs_inline ? 0 : (info->first_gp_reg_save - (FIRST_SAVRES_REGISTER+1))*8); if (frame_reg_rtx == sp_reg_rtx) frame_reg_rtx = gen_rtx_REG (Pmode, 11); emit_insn (gen_addsi3 (frame_reg_rtx, old_frame_reg_rtx, GEN_INT (info->spe_gp_save_offset + sp_offset - ool_adjust))); /* Keep the invariant that frame_reg_rtx + sp_offset points at the top of the stack frame. */ sp_offset = -info->spe_gp_save_offset; spe_offset = 0; } if (restoring_GPRs_inline) { for (i = 0; i < 32 - info->first_gp_reg_save; i++) if (rs6000_reg_live_or_pic_offset_p (info->first_gp_reg_save + i)) { rtx offset, addr, mem, reg; /* We're doing all this to ensure that the immediate offset fits into the immediate field of 'evldd'. */ gcc_assert (SPE_CONST_OFFSET_OK (spe_offset + reg_size * i)); offset = GEN_INT (spe_offset + reg_size * i); addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, offset); mem = gen_rtx_MEM (V2SImode, addr); reg = gen_rtx_REG (reg_mode, info->first_gp_reg_save + i); insn = emit_move_insn (reg, mem); if (DEFAULT_ABI == ABI_V4) { if (frame_pointer_needed && info->first_gp_reg_save + i == HARD_FRAME_POINTER_REGNUM) { add_reg_note (insn, REG_CFA_DEF_CFA, plus_constant (frame_reg_rtx, sp_offset)); RTX_FRAME_RELATED_P (insn) = 1; } cfa_restores = alloc_reg_note (REG_CFA_RESTORE, reg, cfa_restores); } } } else { rtx par; par = rs6000_make_savres_rtx (info, gen_rtx_REG (Pmode, 11), 0, reg_mode, /*savep=*/false, /*gpr=*/true, /*lr=*/true); emit_jump_insn (par); /* We don't want anybody else emitting things after we jumped back. */ return; } } else if (!restoring_GPRs_inline) { /* We are jumping to an out-of-line function. */ bool can_use_exit = info->first_fp_reg_save == 64; rtx par; /* Emit stack reset code if we need it. */ if (can_use_exit) rs6000_emit_stack_reset (info, sp_reg_rtx, frame_reg_rtx, sp_offset, can_use_exit); else { emit_insn (gen_add3_insn (gen_rtx_REG (Pmode, DEFAULT_ABI == ABI_AIX ? 12 : 11), frame_reg_rtx, GEN_INT (sp_offset - info->fp_size))); if (REGNO (frame_reg_rtx) == 11) sp_offset += info->fp_size; } par = rs6000_make_savres_rtx (info, frame_reg_rtx, info->gp_save_offset, reg_mode, /*savep=*/false, /*gpr=*/true, /*lr=*/can_use_exit); if (can_use_exit) { if (info->cr_save_p) { rs6000_restore_saved_cr (cr_save_reg, using_mtcr_multiple); if (DEFAULT_ABI == ABI_V4) cfa_restores = alloc_reg_note (REG_CFA_RESTORE, gen_rtx_REG (SImode, CR2_REGNO), cfa_restores); } emit_jump_insn (par); /* We don't want anybody else emitting things after we jumped back. */ return; } insn = emit_insn (par); if (DEFAULT_ABI == ABI_V4) { if (frame_pointer_needed) { add_reg_note (insn, REG_CFA_DEF_CFA, plus_constant (frame_reg_rtx, sp_offset)); RTX_FRAME_RELATED_P (insn) = 1; } for (i = info->first_gp_reg_save; i < 32; i++) cfa_restores = alloc_reg_note (REG_CFA_RESTORE, gen_rtx_REG (reg_mode, i), cfa_restores); } } else if (using_load_multiple) { rtvec p; p = rtvec_alloc (32 - info->first_gp_reg_save); for (i = 0; i < 32 - info->first_gp_reg_save; i++) { rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->gp_save_offset + sp_offset + reg_size * i)); rtx mem = gen_frame_mem (reg_mode, addr); rtx reg = gen_rtx_REG (reg_mode, info->first_gp_reg_save + i); RTVEC_ELT (p, i) = gen_rtx_SET (VOIDmode, reg, mem); if (DEFAULT_ABI == ABI_V4) cfa_restores = alloc_reg_note (REG_CFA_RESTORE, reg, cfa_restores); } insn = emit_insn (gen_rtx_PARALLEL (VOIDmode, p)); if (DEFAULT_ABI == ABI_V4 && frame_pointer_needed) { add_reg_note (insn, REG_CFA_DEF_CFA, plus_constant (frame_reg_rtx, sp_offset)); RTX_FRAME_RELATED_P (insn) = 1; } } else { for (i = 0; i < 32 - info->first_gp_reg_save; i++) if (rs6000_reg_live_or_pic_offset_p (info->first_gp_reg_save + i)) { rtx addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->gp_save_offset + sp_offset + reg_size * i)); rtx mem = gen_frame_mem (reg_mode, addr); rtx reg = gen_rtx_REG (reg_mode, info->first_gp_reg_save + i); insn = emit_move_insn (reg, mem); if (DEFAULT_ABI == ABI_V4) { if (frame_pointer_needed && info->first_gp_reg_save + i == HARD_FRAME_POINTER_REGNUM) { add_reg_note (insn, REG_CFA_DEF_CFA, plus_constant (frame_reg_rtx, sp_offset)); RTX_FRAME_RELATED_P (insn) = 1; } cfa_restores = alloc_reg_note (REG_CFA_RESTORE, reg, cfa_restores); } } } if (restore_lr && !restoring_GPRs_inline) { rtx mem = gen_frame_mem_offset (Pmode, frame_reg_rtx, info->lr_save_offset + sp_offset); emit_move_insn (gen_rtx_REG (Pmode, 0), mem); emit_move_insn (gen_rtx_REG (Pmode, LR_REGNO), gen_rtx_REG (Pmode, 0)); } /* Restore fpr's if we need to do it without calling a function. */ if (restoring_FPRs_inline) for (i = 0; i < 64 - info->first_fp_reg_save; i++) if ((df_regs_ever_live_p (info->first_fp_reg_save+i) && ! call_used_regs[info->first_fp_reg_save+i])) { rtx addr, mem, reg; addr = gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (info->fp_save_offset + sp_offset + 8 * i)); mem = gen_frame_mem (((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode), addr); reg = gen_rtx_REG (((TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT) ? DFmode : SFmode), info->first_fp_reg_save + i); emit_move_insn (reg, mem); if (DEFAULT_ABI == ABI_V4) cfa_restores = alloc_reg_note (REG_CFA_RESTORE, reg, cfa_restores); } /* If we saved cr, restore it here. Just those that were used. */ if (info->cr_save_p) { rs6000_restore_saved_cr (cr_save_reg, using_mtcr_multiple); if (DEFAULT_ABI == ABI_V4) cfa_restores = alloc_reg_note (REG_CFA_RESTORE, gen_rtx_REG (SImode, CR2_REGNO), cfa_restores); } /* If this is V.4, unwind the stack pointer after all of the loads have been done. */ insn = rs6000_emit_stack_reset (info, sp_reg_rtx, frame_reg_rtx, sp_offset, !restoring_FPRs_inline); if (insn) { if (cfa_restores) { REG_NOTES (insn) = cfa_restores; cfa_restores = NULL_RTX; } add_reg_note (insn, REG_CFA_DEF_CFA, sp_reg_rtx); RTX_FRAME_RELATED_P (insn) = 1; } if (crtl->calls_eh_return) { rtx sa = EH_RETURN_STACKADJ_RTX; emit_insn (gen_add3_insn (sp_reg_rtx, sp_reg_rtx, sa)); } if (!sibcall) { rtvec p; bool lr = (strategy & SAVRES_NOINLINE_FPRS_DOESNT_RESTORE_LR) == 0; if (! restoring_FPRs_inline) p = rtvec_alloc (4 + 64 - info->first_fp_reg_save); else p = rtvec_alloc (2); RTVEC_ELT (p, 0) = gen_rtx_RETURN (VOIDmode); RTVEC_ELT (p, 1) = ((restoring_FPRs_inline || !lr) ? gen_rtx_USE (VOIDmode, gen_rtx_REG (Pmode, 65)) : gen_rtx_CLOBBER (VOIDmode, gen_rtx_REG (Pmode, 65))); /* If we have to restore more than two FP registers, branch to the restore function. It will return to our caller. */ if (! restoring_FPRs_inline) { int i; rtx sym; sym = rs6000_savres_routine_sym (info, /*savep=*/false, /*gpr=*/false, /*lr=*/lr); RTVEC_ELT (p, 2) = gen_rtx_USE (VOIDmode, sym); RTVEC_ELT (p, 3) = gen_rtx_USE (VOIDmode, gen_rtx_REG (Pmode, DEFAULT_ABI == ABI_AIX ? 1 : 11)); for (i = 0; i < 64 - info->first_fp_reg_save; i++) { rtx addr, mem; addr = gen_rtx_PLUS (Pmode, sp_reg_rtx, GEN_INT (info->fp_save_offset + 8*i)); mem = gen_frame_mem (DFmode, addr); RTVEC_ELT (p, i+4) = gen_rtx_SET (VOIDmode, gen_rtx_REG (DFmode, info->first_fp_reg_save + i), mem); } } emit_jump_insn (gen_rtx_PARALLEL (VOIDmode, p)); } } /* Write function epilogue. */ static void rs6000_output_function_epilogue (FILE *file, HOST_WIDE_INT size ATTRIBUTE_UNUSED) { if (! HAVE_epilogue) { rtx insn = get_last_insn (); /* If the last insn was a BARRIER, we don't have to write anything except the trace table. */ if (GET_CODE (insn) == NOTE) insn = prev_nonnote_insn (insn); if (insn == 0 || GET_CODE (insn) != BARRIER) { /* This is slightly ugly, but at least we don't have two copies of the epilogue-emitting code. */ start_sequence (); /* A NOTE_INSN_DELETED is supposed to be at the start and end of the "toplevel" insn chain. */ emit_note (NOTE_INSN_DELETED); rs6000_emit_epilogue (FALSE); emit_note (NOTE_INSN_DELETED); /* Expand INSN_ADDRESSES so final() doesn't crash. */ { rtx insn; unsigned addr = 0; for (insn = get_insns (); insn != 0; insn = NEXT_INSN (insn)) { INSN_ADDRESSES_NEW (insn, addr); addr += 4; } } if (TARGET_DEBUG_STACK) debug_rtx_list (get_insns (), 100); final (get_insns (), file, FALSE); end_sequence (); } } #if TARGET_MACHO macho_branch_islands (); /* Mach-O doesn't support labels at the end of objects, so if it looks like we might want one, insert a NOP. */ { rtx insn = get_last_insn (); while (insn && NOTE_P (insn) && NOTE_KIND (insn) != NOTE_INSN_DELETED_LABEL) insn = PREV_INSN (insn); if (insn && (LABEL_P (insn) || (NOTE_P (insn) && NOTE_KIND (insn) == NOTE_INSN_DELETED_LABEL))) fputs ("\tnop\n", file); } #endif /* Output a traceback table here. See /usr/include/sys/debug.h for info on its format. We don't output a traceback table if -finhibit-size-directive was used. The documentation for -finhibit-size-directive reads ``don't output a @code{.size} assembler directive, or anything else that would cause trouble if the function is split in the middle, and the two halves are placed at locations far apart in memory.'' The traceback table has this property, since it includes the offset from the start of the function to the traceback table itself. System V.4 Powerpc's (and the embedded ABI derived from it) use a different traceback table. */ if (DEFAULT_ABI == ABI_AIX && ! flag_inhibit_size_directive && rs6000_traceback != traceback_none && !cfun->is_thunk) { const char *fname = NULL; const char *language_string = lang_hooks.name; int fixed_parms = 0, float_parms = 0, parm_info = 0; int i; int optional_tbtab; rs6000_stack_t *info = rs6000_stack_info (); if (rs6000_traceback == traceback_full) optional_tbtab = 1; else if (rs6000_traceback == traceback_part) optional_tbtab = 0; else optional_tbtab = !optimize_size && !TARGET_ELF; if (optional_tbtab) { fname = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0); while (*fname == '.') /* V.4 encodes . in the name */ fname++; /* Need label immediately before tbtab, so we can compute its offset from the function start. */ ASM_OUTPUT_INTERNAL_LABEL_PREFIX (file, "LT"); ASM_OUTPUT_LABEL (file, fname); } /* The .tbtab pseudo-op can only be used for the first eight expressions, since it can't handle the possibly variable length fields that follow. However, if you omit the optional fields, the assembler outputs zeros for all optional fields anyways, giving each variable length field is minimum length (as defined in sys/debug.h). Thus we can not use the .tbtab pseudo-op at all. */ /* An all-zero word flags the start of the tbtab, for debuggers that have to find it by searching forward from the entry point or from the current pc. */ fputs ("\t.long 0\n", file); /* Tbtab format type. Use format type 0. */ fputs ("\t.byte 0,", file); /* Language type. Unfortunately, there does not seem to be any official way to discover the language being compiled, so we use language_string. C is 0. Fortran is 1. Pascal is 2. Ada is 3. C++ is 9. Java is 13. Objective-C is 14. Objective-C++ isn't assigned a number, so for now use 9. LTO isn't assigned a number either, so for now use 0. */ if (! strcmp (language_string, "GNU C") || ! strcmp (language_string, "GNU GIMPLE")) i = 0; else if (! strcmp (language_string, "GNU F77") || ! strcmp (language_string, "GNU Fortran")) i = 1; else if (! strcmp (language_string, "GNU Pascal")) i = 2; else if (! strcmp (language_string, "GNU Ada")) i = 3; else if (! strcmp (language_string, "GNU C++") || ! strcmp (language_string, "GNU Objective-C++")) i = 9; else if (! strcmp (language_string, "GNU Java")) i = 13; else if (! strcmp (language_string, "GNU Objective-C")) i = 14; else gcc_unreachable (); fprintf (file, "%d,", i); /* 8 single bit fields: global linkage (not set for C extern linkage, apparently a PL/I convention?), out-of-line epilogue/prologue, offset from start of procedure stored in tbtab, internal function, function has controlled storage, function has no toc, function uses fp, function logs/aborts fp operations. */ /* Assume that fp operations are used if any fp reg must be saved. */ fprintf (file, "%d,", (optional_tbtab << 5) | ((info->first_fp_reg_save != 64) << 1)); /* 6 bitfields: function is interrupt handler, name present in proc table, function calls alloca, on condition directives (controls stack walks, 3 bits), saves condition reg, saves link reg. */ /* The `function calls alloca' bit seems to be set whenever reg 31 is set up as a frame pointer, even when there is no alloca call. */ fprintf (file, "%d,", ((optional_tbtab << 6) | ((optional_tbtab & frame_pointer_needed) << 5) | (info->cr_save_p << 1) | (info->lr_save_p))); /* 3 bitfields: saves backchain, fixup code, number of fpr saved (6 bits). */ fprintf (file, "%d,", (info->push_p << 7) | (64 - info->first_fp_reg_save)); /* 2 bitfields: spare bits (2 bits), number of gpr saved (6 bits). */ fprintf (file, "%d,", (32 - first_reg_to_save ())); if (optional_tbtab) { /* Compute the parameter info from the function decl argument list. */ tree decl; int next_parm_info_bit = 31; for (decl = DECL_ARGUMENTS (current_function_decl); decl; decl = TREE_CHAIN (decl)) { rtx parameter = DECL_INCOMING_RTL (decl); enum machine_mode mode = GET_MODE (parameter); if (GET_CODE (parameter) == REG) { if (SCALAR_FLOAT_MODE_P (mode)) { int bits; float_parms++; switch (mode) { case SFmode: case SDmode: bits = 0x2; break; case DFmode: case DDmode: case TFmode: case TDmode: bits = 0x3; break; default: gcc_unreachable (); } /* If only one bit will fit, don't or in this entry. */ if (next_parm_info_bit > 0) parm_info |= (bits << (next_parm_info_bit - 1)); next_parm_info_bit -= 2; } else { fixed_parms += ((GET_MODE_SIZE (mode) + (UNITS_PER_WORD - 1)) / UNITS_PER_WORD); next_parm_info_bit -= 1; } } } } /* Number of fixed point parameters. */ /* This is actually the number of words of fixed point parameters; thus an 8 byte struct counts as 2; and thus the maximum value is 8. */ fprintf (file, "%d,", fixed_parms); /* 2 bitfields: number of floating point parameters (7 bits), parameters all on stack. */ /* This is actually the number of fp registers that hold parameters; and thus the maximum value is 13. */ /* Set parameters on stack bit if parameters are not in their original registers, regardless of whether they are on the stack? Xlc seems to set the bit when not optimizing. */ fprintf (file, "%d\n", ((float_parms << 1) | (! optimize))); if (! optional_tbtab) return; /* Optional fields follow. Some are variable length. */ /* Parameter types, left adjusted bit fields: 0 fixed, 10 single float, 11 double float. */ /* There is an entry for each parameter in a register, in the order that they occur in the parameter list. Any intervening arguments on the stack are ignored. If the list overflows a long (max possible length 34 bits) then completely leave off all elements that don't fit. */ /* Only emit this long if there was at least one parameter. */ if (fixed_parms || float_parms) fprintf (file, "\t.long %d\n", parm_info); /* Offset from start of code to tb table. */ fputs ("\t.long ", file); ASM_OUTPUT_INTERNAL_LABEL_PREFIX (file, "LT"); if (TARGET_AIX) RS6000_OUTPUT_BASENAME (file, fname); else assemble_name (file, fname); putc ('-', file); rs6000_output_function_entry (file, fname); putc ('\n', file); /* Interrupt handler mask. */ /* Omit this long, since we never set the interrupt handler bit above. */ /* Number of CTL (controlled storage) anchors. */ /* Omit this long, since the has_ctl bit is never set above. */ /* Displacement into stack of each CTL anchor. */ /* Omit this list of longs, because there are no CTL anchors. */ /* Length of function name. */ if (*fname == '*') ++fname; fprintf (file, "\t.short %d\n", (int) strlen (fname)); /* Function name. */ assemble_string (fname, strlen (fname)); /* Register for alloca automatic storage; this is always reg 31. Only emit this if the alloca bit was set above. */ if (frame_pointer_needed) fputs ("\t.byte 31\n", file); fputs ("\t.align 2\n", file); } } /* A C compound statement that outputs the assembler code for a thunk function, used to implement C++ virtual function calls with multiple inheritance. The thunk acts as a wrapper around a virtual function, adjusting the implicit object parameter before handing control off to the real function. First, emit code to add the integer DELTA to the location that contains the incoming first argument. Assume that this argument contains a pointer, and is the one used to pass the `this' pointer in C++. This is the incoming argument *before* the function prologue, e.g. `%o0' on a sparc. The addition must preserve the values of all other incoming arguments. After the addition, emit code to jump to FUNCTION, which is a `FUNCTION_DECL'. This is a direct pure jump, not a call, and does not touch the return address. Hence returning from FUNCTION will return to whoever called the current `thunk'. The effect must be as if FUNCTION had been called directly with the adjusted first argument. This macro is responsible for emitting all of the code for a thunk function; output_function_prologue() and output_function_epilogue() are not invoked. The THUNK_FNDECL is redundant. (DELTA and FUNCTION have already been extracted from it.) It might possibly be useful on some targets, but probably not. If you do not define this macro, the target-independent code in the C++ frontend will generate a less efficient heavyweight thunk that calls FUNCTION instead of jumping to it. The generic approach does not support varargs. */ static void rs6000_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED, HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset, tree function) { rtx this_rtx, insn, funexp; reload_completed = 1; epilogue_completed = 1; /* Mark the end of the (empty) prologue. */ emit_note (NOTE_INSN_PROLOGUE_END); /* Find the "this" pointer. If the function returns a structure, the structure return pointer is in r3. */ if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function)) this_rtx = gen_rtx_REG (Pmode, 4); else this_rtx = gen_rtx_REG (Pmode, 3); /* Apply the constant offset, if required. */ if (delta) emit_insn (gen_add3_insn (this_rtx, this_rtx, GEN_INT (delta))); /* Apply the offset from the vtable, if required. */ if (vcall_offset) { rtx vcall_offset_rtx = GEN_INT (vcall_offset); rtx tmp = gen_rtx_REG (Pmode, 12); emit_move_insn (tmp, gen_rtx_MEM (Pmode, this_rtx)); if (((unsigned HOST_WIDE_INT) vcall_offset) + 0x8000 >= 0x10000) { emit_insn (gen_add3_insn (tmp, tmp, vcall_offset_rtx)); emit_move_insn (tmp, gen_rtx_MEM (Pmode, tmp)); } else { rtx loc = gen_rtx_PLUS (Pmode, tmp, vcall_offset_rtx); emit_move_insn (tmp, gen_rtx_MEM (Pmode, loc)); } emit_insn (gen_add3_insn (this_rtx, this_rtx, tmp)); } /* Generate a tail call to the target function. */ if (!TREE_USED (function)) { assemble_external (function); TREE_USED (function) = 1; } funexp = XEXP (DECL_RTL (function), 0); funexp = gen_rtx_MEM (FUNCTION_MODE, funexp); #if TARGET_MACHO if (MACHOPIC_INDIRECT) funexp = machopic_indirect_call_target (funexp); #endif /* gen_sibcall expects reload to convert scratch pseudo to LR so we must generate sibcall RTL explicitly. */ insn = emit_call_insn ( gen_rtx_PARALLEL (VOIDmode, gen_rtvec (4, gen_rtx_CALL (VOIDmode, funexp, const0_rtx), gen_rtx_USE (VOIDmode, const0_rtx), gen_rtx_USE (VOIDmode, gen_rtx_REG (SImode, LR_REGNO)), gen_rtx_RETURN (VOIDmode)))); SIBLING_CALL_P (insn) = 1; emit_barrier (); /* Run just enough of rest_of_compilation to get the insns emitted. There's not really enough bulk here to make other passes such as instruction scheduling worth while. Note that use_thunk calls assemble_start_function and assemble_end_function. */ insn = get_insns (); insn_locators_alloc (); shorten_branches (insn); final_start_function (insn, file, 1); final (insn, file, 1); final_end_function (); reload_completed = 0; epilogue_completed = 0; } /* A quick summary of the various types of 'constant-pool tables' under PowerPC: Target Flags Name One table per AIX (none) AIX TOC object file AIX -mfull-toc AIX TOC object file AIX -mminimal-toc AIX minimal TOC translation unit SVR4/EABI (none) SVR4 SDATA object file SVR4/EABI -fpic SVR4 pic object file SVR4/EABI -fPIC SVR4 PIC translation unit SVR4/EABI -mrelocatable EABI TOC function SVR4/EABI -maix AIX TOC object file SVR4/EABI -maix -mminimal-toc AIX minimal TOC translation unit Name Reg. Set by entries contains: made by addrs? fp? sum? AIX TOC 2 crt0 as Y option option AIX minimal TOC 30 prolog gcc Y Y option SVR4 SDATA 13 crt0 gcc N Y N SVR4 pic 30 prolog ld Y not yet N SVR4 PIC 30 prolog gcc Y option option EABI TOC 30 prolog gcc Y option option */ /* Hash functions for the hash table. */ static unsigned rs6000_hash_constant (rtx k) { enum rtx_code code = GET_CODE (k); enum machine_mode mode = GET_MODE (k); unsigned result = (code << 3) ^ mode; const char *format; int flen, fidx; format = GET_RTX_FORMAT (code); flen = strlen (format); fidx = 0; switch (code) { case LABEL_REF: return result * 1231 + (unsigned) INSN_UID (XEXP (k, 0)); case CONST_DOUBLE: if (mode != VOIDmode) return real_hash (CONST_DOUBLE_REAL_VALUE (k)) * result; flen = 2; break; case CODE_LABEL: fidx = 3; break; default: break; } for (; fidx < flen; fidx++) switch (format[fidx]) { case 's': { unsigned i, len; const char *str = XSTR (k, fidx); len = strlen (str); result = result * 613 + len; for (i = 0; i < len; i++) result = result * 613 + (unsigned) str[i]; break; } case 'u': case 'e': result = result * 1231 + rs6000_hash_constant (XEXP (k, fidx)); break; case 'i': case 'n': result = result * 613 + (unsigned) XINT (k, fidx); break; case 'w': if (sizeof (unsigned) >= sizeof (HOST_WIDE_INT)) result = result * 613 + (unsigned) XWINT (k, fidx); else { size_t i; for (i = 0; i < sizeof (HOST_WIDE_INT) / sizeof (unsigned); i++) result = result * 613 + (unsigned) (XWINT (k, fidx) >> CHAR_BIT * i); } break; case '0': break; default: gcc_unreachable (); } return result; } static unsigned toc_hash_function (const void *hash_entry) { const struct toc_hash_struct *thc = (const struct toc_hash_struct *) hash_entry; return rs6000_hash_constant (thc->key) ^ thc->key_mode; } /* Compare H1 and H2 for equivalence. */ static int toc_hash_eq (const void *h1, const void *h2) { rtx r1 = ((const struct toc_hash_struct *) h1)->key; rtx r2 = ((const struct toc_hash_struct *) h2)->key; if (((const struct toc_hash_struct *) h1)->key_mode != ((const struct toc_hash_struct *) h2)->key_mode) return 0; return rtx_equal_p (r1, r2); } /* These are the names given by the C++ front-end to vtables, and vtable-like objects. Ideally, this logic should not be here; instead, there should be some programmatic way of inquiring as to whether or not an object is a vtable. */ #define VTABLE_NAME_P(NAME) \ (strncmp ("_vt.", name, strlen ("_vt.")) == 0 \ || strncmp ("_ZTV", name, strlen ("_ZTV")) == 0 \ || strncmp ("_ZTT", name, strlen ("_ZTT")) == 0 \ || strncmp ("_ZTI", name, strlen ("_ZTI")) == 0 \ || strncmp ("_ZTC", name, strlen ("_ZTC")) == 0) #ifdef NO_DOLLAR_IN_LABEL /* Return a GGC-allocated character string translating dollar signs in input NAME to underscores. Used by XCOFF ASM_OUTPUT_LABELREF. */ const char * rs6000_xcoff_strip_dollar (const char *name) { char *strip, *p; int len; p = strchr (name, '$'); if (p == 0 || p == name) return name; len = strlen (name); strip = (char *) alloca (len + 1); strcpy (strip, name); p = strchr (strip, '$'); while (p) { *p = '_'; p = strchr (p + 1, '$'); } return ggc_alloc_string (strip, len); } #endif void rs6000_output_symbol_ref (FILE *file, rtx x) { /* Currently C++ toc references to vtables can be emitted before it is decided whether the vtable is public or private. If this is the case, then the linker will eventually complain that there is a reference to an unknown section. Thus, for vtables only, we emit the TOC reference to reference the symbol and not the section. */ const char *name = XSTR (x, 0); if (VTABLE_NAME_P (name)) { RS6000_OUTPUT_BASENAME (file, name); } else assemble_name (file, name); } /* Output a TOC entry. We derive the entry name from what is being written. */ void output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode) { char buf[256]; const char *name = buf; rtx base = x; HOST_WIDE_INT offset = 0; gcc_assert (!TARGET_NO_TOC); /* When the linker won't eliminate them, don't output duplicate TOC entries (this happens on AIX if there is any kind of TOC, and on SVR4 under -fPIC or -mrelocatable). Don't do this for CODE_LABELs. */ if (TARGET_TOC && GET_CODE (x) != LABEL_REF) { struct toc_hash_struct *h; void * * found; /* Create toc_hash_table. This can't be done at OVERRIDE_OPTIONS time because GGC is not initialized at that point. */ if (toc_hash_table == NULL) toc_hash_table = htab_create_ggc (1021, toc_hash_function, toc_hash_eq, NULL); h = GGC_NEW (struct toc_hash_struct); h->key = x; h->key_mode = mode; h->labelno = labelno; found = htab_find_slot (toc_hash_table, h, INSERT); if (*found == NULL) *found = h; else /* This is indeed a duplicate. Set this label equal to that label. */ { fputs ("\t.set ", file); ASM_OUTPUT_INTERNAL_LABEL_PREFIX (file, "LC"); fprintf (file, "%d,", labelno); ASM_OUTPUT_INTERNAL_LABEL_PREFIX (file, "LC"); fprintf (file, "%d\n", ((*(const struct toc_hash_struct **) found)->labelno)); return; } } /* If we're going to put a double constant in the TOC, make sure it's aligned properly when strict alignment is on. */ if (GET_CODE (x) == CONST_DOUBLE && STRICT_ALIGNMENT && GET_MODE_BITSIZE (mode) >= 64 && ! (TARGET_NO_FP_IN_TOC && ! TARGET_MINIMAL_TOC)) { ASM_OUTPUT_ALIGN (file, 3); } (*targetm.asm_out.internal_label) (file, "LC", labelno); /* Handle FP constants specially. Note that if we have a minimal TOC, things we put here aren't actually in the TOC, so we can allow FP constants. */ if (GET_CODE (x) == CONST_DOUBLE && (GET_MODE (x) == TFmode || GET_MODE (x) == TDmode)) { REAL_VALUE_TYPE rv; long k[4]; REAL_VALUE_FROM_CONST_DOUBLE (rv, x); if (DECIMAL_FLOAT_MODE_P (GET_MODE (x))) REAL_VALUE_TO_TARGET_DECIMAL128 (rv, k); else REAL_VALUE_TO_TARGET_LONG_DOUBLE (rv, k); if (TARGET_64BIT) { if (TARGET_MINIMAL_TOC) fputs (DOUBLE_INT_ASM_OP, file); else fprintf (file, "\t.tc FT_%lx_%lx_%lx_%lx[TC],", k[0] & 0xffffffff, k[1] & 0xffffffff, k[2] & 0xffffffff, k[3] & 0xffffffff); fprintf (file, "0x%lx%08lx,0x%lx%08lx\n", k[0] & 0xffffffff, k[1] & 0xffffffff, k[2] & 0xffffffff, k[3] & 0xffffffff); return; } else { if (TARGET_MINIMAL_TOC) fputs ("\t.long ", file); else fprintf (file, "\t.tc FT_%lx_%lx_%lx_%lx[TC],", k[0] & 0xffffffff, k[1] & 0xffffffff, k[2] & 0xffffffff, k[3] & 0xffffffff); fprintf (file, "0x%lx,0x%lx,0x%lx,0x%lx\n", k[0] & 0xffffffff, k[1] & 0xffffffff, k[2] & 0xffffffff, k[3] & 0xffffffff); return; } } else if (GET_CODE (x) == CONST_DOUBLE && (GET_MODE (x) == DFmode || GET_MODE (x) == DDmode)) { REAL_VALUE_TYPE rv; long k[2]; REAL_VALUE_FROM_CONST_DOUBLE (rv, x); if (DECIMAL_FLOAT_MODE_P (GET_MODE (x))) REAL_VALUE_TO_TARGET_DECIMAL64 (rv, k); else REAL_VALUE_TO_TARGET_DOUBLE (rv, k); if (TARGET_64BIT) { if (TARGET_MINIMAL_TOC) fputs (DOUBLE_INT_ASM_OP, file); else fprintf (file, "\t.tc FD_%lx_%lx[TC],", k[0] & 0xffffffff, k[1] & 0xffffffff); fprintf (file, "0x%lx%08lx\n", k[0] & 0xffffffff, k[1] & 0xffffffff); return; } else { if (TARGET_MINIMAL_TOC) fputs ("\t.long ", file); else fprintf (file, "\t.tc FD_%lx_%lx[TC],", k[0] & 0xffffffff, k[1] & 0xffffffff); fprintf (file, "0x%lx,0x%lx\n", k[0] & 0xffffffff, k[1] & 0xffffffff); return; } } else if (GET_CODE (x) == CONST_DOUBLE && (GET_MODE (x) == SFmode || GET_MODE (x) == SDmode)) { REAL_VALUE_TYPE rv; long l; REAL_VALUE_FROM_CONST_DOUBLE (rv, x); if (DECIMAL_FLOAT_MODE_P (GET_MODE (x))) REAL_VALUE_TO_TARGET_DECIMAL32 (rv, l); else REAL_VALUE_TO_TARGET_SINGLE (rv, l); if (TARGET_64BIT) { if (TARGET_MINIMAL_TOC) fputs (DOUBLE_INT_ASM_OP, file); else fprintf (file, "\t.tc FS_%lx[TC],", l & 0xffffffff); fprintf (file, "0x%lx00000000\n", l & 0xffffffff); return; } else { if (TARGET_MINIMAL_TOC) fputs ("\t.long ", file); else fprintf (file, "\t.tc FS_%lx[TC],", l & 0xffffffff); fprintf (file, "0x%lx\n", l & 0xffffffff); return; } } else if (GET_MODE (x) == VOIDmode && (GET_CODE (x) == CONST_INT || GET_CODE (x) == CONST_DOUBLE)) { unsigned HOST_WIDE_INT low; HOST_WIDE_INT high; if (GET_CODE (x) == CONST_DOUBLE) { low = CONST_DOUBLE_LOW (x); high = CONST_DOUBLE_HIGH (x); } else #if HOST_BITS_PER_WIDE_INT == 32 { low = INTVAL (x); high = (low & 0x80000000) ? ~0 : 0; } #else { low = INTVAL (x) & 0xffffffff; high = (HOST_WIDE_INT) INTVAL (x) >> 32; } #endif /* TOC entries are always Pmode-sized, but since this is a bigendian machine then if we're putting smaller integer constants in the TOC we have to pad them. (This is still a win over putting the constants in a separate constant pool, because then we'd have to have both a TOC entry _and_ the actual constant.) For a 32-bit target, CONST_INT values are loaded and shifted entirely within `low' and can be stored in one TOC entry. */ /* It would be easy to make this work, but it doesn't now. */ gcc_assert (!TARGET_64BIT || POINTER_SIZE >= GET_MODE_BITSIZE (mode)); if (POINTER_SIZE > GET_MODE_BITSIZE (mode)) { #if HOST_BITS_PER_WIDE_INT == 32 lshift_double (low, high, POINTER_SIZE - GET_MODE_BITSIZE (mode), POINTER_SIZE, &low, &high, 0); #else low |= high << 32; low <<= POINTER_SIZE - GET_MODE_BITSIZE (mode); high = (HOST_WIDE_INT) low >> 32; low &= 0xffffffff; #endif } if (TARGET_64BIT) { if (TARGET_MINIMAL_TOC) fputs (DOUBLE_INT_ASM_OP, file); else fprintf (file, "\t.tc ID_%lx_%lx[TC],", (long) high & 0xffffffff, (long) low & 0xffffffff); fprintf (file, "0x%lx%08lx\n", (long) high & 0xffffffff, (long) low & 0xffffffff); return; } else { if (POINTER_SIZE < GET_MODE_BITSIZE (mode)) { if (TARGET_MINIMAL_TOC) fputs ("\t.long ", file); else fprintf (file, "\t.tc ID_%lx_%lx[TC],", (long) high & 0xffffffff, (long) low & 0xffffffff); fprintf (file, "0x%lx,0x%lx\n", (long) high & 0xffffffff, (long) low & 0xffffffff); } else { if (TARGET_MINIMAL_TOC) fputs ("\t.long ", file); else fprintf (file, "\t.tc IS_%lx[TC],", (long) low & 0xffffffff); fprintf (file, "0x%lx\n", (long) low & 0xffffffff); } return; } } if (GET_CODE (x) == CONST) { gcc_assert (GET_CODE (XEXP (x, 0)) == PLUS && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT); base = XEXP (XEXP (x, 0), 0); offset = INTVAL (XEXP (XEXP (x, 0), 1)); } switch (GET_CODE (base)) { case SYMBOL_REF: name = XSTR (base, 0); break; case LABEL_REF: ASM_GENERATE_INTERNAL_LABEL (buf, "L", CODE_LABEL_NUMBER (XEXP (base, 0))); break; case CODE_LABEL: ASM_GENERATE_INTERNAL_LABEL (buf, "L", CODE_LABEL_NUMBER (base)); break; default: gcc_unreachable (); } if (TARGET_MINIMAL_TOC) fputs (TARGET_32BIT ? "\t.long " : DOUBLE_INT_ASM_OP, file); else { fputs ("\t.tc ", file); RS6000_OUTPUT_BASENAME (file, name); if (offset < 0) fprintf (file, ".N" HOST_WIDE_INT_PRINT_UNSIGNED, - offset); else if (offset) fprintf (file, ".P" HOST_WIDE_INT_PRINT_UNSIGNED, offset); fputs ("[TC],", file); } /* Currently C++ toc references to vtables can be emitted before it is decided whether the vtable is public or private. If this is the case, then the linker will eventually complain that there is a TOC reference to an unknown section. Thus, for vtables only, we emit the TOC reference to reference the symbol and not the section. */ if (VTABLE_NAME_P (name)) { RS6000_OUTPUT_BASENAME (file, name); if (offset < 0) fprintf (file, HOST_WIDE_INT_PRINT_DEC, offset); else if (offset > 0) fprintf (file, "+" HOST_WIDE_INT_PRINT_DEC, offset); } else output_addr_const (file, x); putc ('\n', file); } /* Output an assembler pseudo-op to write an ASCII string of N characters starting at P to FILE. On the RS/6000, we have to do this using the .byte operation and write out special characters outside the quoted string. Also, the assembler is broken; very long strings are truncated, so we must artificially break them up early. */ void output_ascii (FILE *file, const char *p, int n) { char c; int i, count_string; const char *for_string = "\t.byte \""; const char *for_decimal = "\t.byte "; const char *to_close = NULL; count_string = 0; for (i = 0; i < n; i++) { c = *p++; if (c >= ' ' && c < 0177) { if (for_string) fputs (for_string, file); putc (c, file); /* Write two quotes to get one. */ if (c == '"') { putc (c, file); ++count_string; } for_string = NULL; for_decimal = "\"\n\t.byte "; to_close = "\"\n"; ++count_string; if (count_string >= 512) { fputs (to_close, file); for_string = "\t.byte \""; for_decimal = "\t.byte "; to_close = NULL; count_string = 0; } } else { if (for_decimal) fputs (for_decimal, file); fprintf (file, "%d", c); for_string = "\n\t.byte \""; for_decimal = ", "; to_close = "\n"; count_string = 0; } } /* Now close the string if we have written one. Then end the line. */ if (to_close) fputs (to_close, file); } /* Generate a unique section name for FILENAME for a section type represented by SECTION_DESC. Output goes into BUF. SECTION_DESC can be any string, as long as it is different for each possible section type. We name the section in the same manner as xlc. The name begins with an underscore followed by the filename (after stripping any leading directory names) with the last period replaced by the string SECTION_DESC. If FILENAME does not contain a period, SECTION_DESC is appended to the end of the name. */ void rs6000_gen_section_name (char **buf, const char *filename, const char *section_desc) { const char *q, *after_last_slash, *last_period = 0; char *p; int len; after_last_slash = filename; for (q = filename; *q; q++) { if (*q == '/') after_last_slash = q + 1; else if (*q == '.') last_period = q; } len = strlen (after_last_slash) + strlen (section_desc) + 2; *buf = (char *) xmalloc (len); p = *buf; *p++ = '_'; for (q = after_last_slash; *q; q++) { if (q == last_period) { strcpy (p, section_desc); p += strlen (section_desc); break; } else if (ISALNUM (*q)) *p++ = *q; } if (last_period == 0) strcpy (p, section_desc); else *p = '\0'; } /* Emit profile function. */ void output_profile_hook (int labelno ATTRIBUTE_UNUSED) { /* Non-standard profiling for kernels, which just saves LR then calls _mcount without worrying about arg saves. The idea is to change the function prologue as little as possible as it isn't easy to account for arg save/restore code added just for _mcount. */ if (TARGET_PROFILE_KERNEL) return; if (DEFAULT_ABI == ABI_AIX) { #ifndef NO_PROFILE_COUNTERS # define NO_PROFILE_COUNTERS 0 #endif if (NO_PROFILE_COUNTERS) emit_library_call (init_one_libfunc (RS6000_MCOUNT), LCT_NORMAL, VOIDmode, 0); else { char buf[30]; const char *label_name; rtx fun; ASM_GENERATE_INTERNAL_LABEL (buf, "LP", labelno); label_name = (*targetm.strip_name_encoding) (ggc_strdup (buf)); fun = gen_rtx_SYMBOL_REF (Pmode, label_name); emit_library_call (init_one_libfunc (RS6000_MCOUNT), LCT_NORMAL, VOIDmode, 1, fun, Pmode); } } else if (DEFAULT_ABI == ABI_DARWIN) { const char *mcount_name = RS6000_MCOUNT; int caller_addr_regno = LR_REGNO; /* Be conservative and always set this, at least for now. */ crtl->uses_pic_offset_table = 1; #if TARGET_MACHO /* For PIC code, set up a stub and collect the caller's address from r0, which is where the prologue puts it. */ if (MACHOPIC_INDIRECT && crtl->uses_pic_offset_table) caller_addr_regno = 0; #endif emit_library_call (gen_rtx_SYMBOL_REF (Pmode, mcount_name), LCT_NORMAL, VOIDmode, 1, gen_rtx_REG (Pmode, caller_addr_regno), Pmode); } } /* Write function profiler code. */ void output_function_profiler (FILE *file, int labelno) { char buf[100]; switch (DEFAULT_ABI) { default: gcc_unreachable (); case ABI_V4: if (!TARGET_32BIT) { warning (0, "no profiling of 64-bit code for this ABI"); return; } ASM_GENERATE_INTERNAL_LABEL (buf, "LP", labelno); fprintf (file, "\tmflr %s\n", reg_names[0]); if (NO_PROFILE_COUNTERS) { asm_fprintf (file, "\t{st|stw} %s,4(%s)\n", reg_names[0], reg_names[1]); } else if (TARGET_SECURE_PLT && flag_pic) { asm_fprintf (file, "\tbcl 20,31,1f\n1:\n\t{st|stw} %s,4(%s)\n", reg_names[0], reg_names[1]); asm_fprintf (file, "\tmflr %s\n", reg_names[12]); asm_fprintf (file, "\t{cau|addis} %s,%s,", reg_names[12], reg_names[12]); assemble_name (file, buf); asm_fprintf (file, "-1b@ha\n\t{cal|la} %s,", reg_names[0]); assemble_name (file, buf); asm_fprintf (file, "-1b@l(%s)\n", reg_names[12]); } else if (flag_pic == 1) { fputs ("\tbl _GLOBAL_OFFSET_TABLE_@local-4\n", file); asm_fprintf (file, "\t{st|stw} %s,4(%s)\n", reg_names[0], reg_names[1]); asm_fprintf (file, "\tmflr %s\n", reg_names[12]); asm_fprintf (file, "\t{l|lwz} %s,", reg_names[0]); assemble_name (file, buf); asm_fprintf (file, "@got(%s)\n", reg_names[12]); } else if (flag_pic > 1) { asm_fprintf (file, "\t{st|stw} %s,4(%s)\n", reg_names[0], reg_names[1]); /* Now, we need to get the address of the label. */ fputs ("\tbcl 20,31,1f\n\t.long ", file); assemble_name (file, buf); fputs ("-.\n1:", file); asm_fprintf (file, "\tmflr %s\n", reg_names[11]); asm_fprintf (file, "\t{l|lwz} %s,0(%s)\n", reg_names[0], reg_names[11]); asm_fprintf (file, "\t{cax|add} %s,%s,%s\n", reg_names[0], reg_names[0], reg_names[11]); } else { asm_fprintf (file, "\t{liu|lis} %s,", reg_names[12]); assemble_name (file, buf); fputs ("@ha\n", file); asm_fprintf (file, "\t{st|stw} %s,4(%s)\n", reg_names[0], reg_names[1]); asm_fprintf (file, "\t{cal|la} %s,", reg_names[0]); assemble_name (file, buf); asm_fprintf (file, "@l(%s)\n", reg_names[12]); } /* ABI_V4 saves the static chain reg with ASM_OUTPUT_REG_PUSH. */ fprintf (file, "\tbl %s%s\n", RS6000_MCOUNT, flag_pic ? "@plt" : ""); break; case ABI_AIX: case ABI_DARWIN: if (!TARGET_PROFILE_KERNEL) { /* Don't do anything, done in output_profile_hook (). */ } else { gcc_assert (!TARGET_32BIT); asm_fprintf (file, "\tmflr %s\n", reg_names[0]); asm_fprintf (file, "\tstd %s,16(%s)\n", reg_names[0], reg_names[1]); if (cfun->static_chain_decl != NULL) { asm_fprintf (file, "\tstd %s,24(%s)\n", reg_names[STATIC_CHAIN_REGNUM], reg_names[1]); fprintf (file, "\tbl %s\n", RS6000_MCOUNT); asm_fprintf (file, "\tld %s,24(%s)\n", reg_names[STATIC_CHAIN_REGNUM], reg_names[1]); } else fprintf (file, "\tbl %s\n", RS6000_MCOUNT); } break; } } /* The following variable value is the last issued insn. */ static rtx last_scheduled_insn; /* The following variable helps to balance issuing of load and store instructions */ static int load_store_pendulum; /* Power4 load update and store update instructions are cracked into a load or store and an integer insn which are executed in the same cycle. Branches have their own dispatch slot which does not count against the GCC issue rate, but it changes the program flow so there are no other instructions to issue in this cycle. */ static int rs6000_variable_issue_1 (rtx insn, int more) { last_scheduled_insn = insn; if (GET_CODE (PATTERN (insn)) == USE || GET_CODE (PATTERN (insn)) == CLOBBER) { cached_can_issue_more = more; return cached_can_issue_more; } if (insn_terminates_group_p (insn, current_group)) { cached_can_issue_more = 0; return cached_can_issue_more; } /* If no reservation, but reach here */ if (recog_memoized (insn) < 0) return more; if (rs6000_sched_groups) { if (is_microcoded_insn (insn)) cached_can_issue_more = 0; else if (is_cracked_insn (insn)) cached_can_issue_more = more > 2 ? more - 2 : 0; else cached_can_issue_more = more - 1; return cached_can_issue_more; } if (rs6000_cpu_attr == CPU_CELL && is_nonpipeline_insn (insn)) return 0; cached_can_issue_more = more - 1; return cached_can_issue_more; } static int rs6000_variable_issue (FILE *stream, int verbose, rtx insn, int more) { int r = rs6000_variable_issue_1 (insn, more); if (verbose) fprintf (stream, "// rs6000_variable_issue (more = %d) = %d\n", more, r); return r; } /* Adjust the cost of a scheduling dependency. Return the new cost of a dependency LINK or INSN on DEP_INSN. COST is the current cost. */ static int rs6000_adjust_cost (rtx insn, rtx link, rtx dep_insn, int cost) { enum attr_type attr_type; if (! recog_memoized (insn)) return 0; switch (REG_NOTE_KIND (link)) { case REG_DEP_TRUE: { /* Data dependency; DEP_INSN writes a register that INSN reads some cycles later. */ /* Separate a load from a narrower, dependent store. */ if (rs6000_sched_groups && GET_CODE (PATTERN (insn)) == SET && GET_CODE (PATTERN (dep_insn)) == SET && GET_CODE (XEXP (PATTERN (insn), 1)) == MEM && GET_CODE (XEXP (PATTERN (dep_insn), 0)) == MEM && (GET_MODE_SIZE (GET_MODE (XEXP (PATTERN (insn), 1))) > GET_MODE_SIZE (GET_MODE (XEXP (PATTERN (dep_insn), 0))))) return cost + 14; attr_type = get_attr_type (insn); switch (attr_type) { case TYPE_JMPREG: /* Tell the first scheduling pass about the latency between a mtctr and bctr (and mtlr and br/blr). The first scheduling pass will not know about this latency since the mtctr instruction, which has the latency associated to it, will be generated by reload. */ return TARGET_POWER ? 5 : 4; case TYPE_BRANCH: /* Leave some extra cycles between a compare and its dependent branch, to inhibit expensive mispredicts. */ if ((rs6000_cpu_attr == CPU_PPC603 || rs6000_cpu_attr == CPU_PPC604 || rs6000_cpu_attr == CPU_PPC604E || rs6000_cpu_attr == CPU_PPC620 || rs6000_cpu_attr == CPU_PPC630 || rs6000_cpu_attr == CPU_PPC750 || rs6000_cpu_attr == CPU_PPC7400 || rs6000_cpu_attr == CPU_PPC7450 || rs6000_cpu_attr == CPU_POWER4 || rs6000_cpu_attr == CPU_POWER5 || rs6000_cpu_attr == CPU_POWER7 || rs6000_cpu_attr == CPU_CELL) && recog_memoized (dep_insn) && (INSN_CODE (dep_insn) >= 0)) switch (get_attr_type (dep_insn)) { case TYPE_CMP: case TYPE_COMPARE: case TYPE_DELAYED_COMPARE: case TYPE_IMUL_COMPARE: case TYPE_LMUL_COMPARE: case TYPE_FPCOMPARE: case TYPE_CR_LOGICAL: case TYPE_DELAYED_CR: return cost + 2; default: break; } break; case TYPE_STORE: case TYPE_STORE_U: case TYPE_STORE_UX: case TYPE_FPSTORE: case TYPE_FPSTORE_U: case TYPE_FPSTORE_UX: if ((rs6000_cpu == PROCESSOR_POWER6) && recog_memoized (dep_insn) && (INSN_CODE (dep_insn) >= 0)) { if (GET_CODE (PATTERN (insn)) != SET) /* If this happens, we have to extend this to schedule optimally. Return default for now. */ return cost; /* Adjust the cost for the case where the value written by a fixed point operation is used as the address gen value on a store. */ switch (get_attr_type (dep_insn)) { case TYPE_LOAD: case TYPE_LOAD_U: case TYPE_LOAD_UX: case TYPE_CNTLZ: { if (! store_data_bypass_p (dep_insn, insn)) return 4; break; } case TYPE_LOAD_EXT: case TYPE_LOAD_EXT_U: case TYPE_LOAD_EXT_UX: case TYPE_VAR_SHIFT_ROTATE: case TYPE_VAR_DELAYED_COMPARE: { if (! store_data_bypass_p (dep_insn, insn)) return 6; break; } case TYPE_INTEGER: case TYPE_COMPARE: case TYPE_FAST_COMPARE: case TYPE_EXTS: case TYPE_SHIFT: case TYPE_INSERT_WORD: case TYPE_INSERT_DWORD: case TYPE_FPLOAD_U: case TYPE_FPLOAD_UX: case TYPE_STORE_U: case TYPE_STORE_UX: case TYPE_FPSTORE_U: case TYPE_FPSTORE_UX: { if (! store_data_bypass_p (dep_insn, insn)) return 3; break; } case TYPE_IMUL: case TYPE_IMUL2: case TYPE_IMUL3: case TYPE_LMUL: case TYPE_IMUL_COMPARE: case TYPE_LMUL_COMPARE: { if (! store_data_bypass_p (dep_insn, insn)) return 17; break; } case TYPE_IDIV: { if (! store_data_bypass_p (dep_insn, insn)) return 45; break; } case TYPE_LDIV: { if (! store_data_bypass_p (dep_insn, insn)) return 57; break; } default: break; } } break; case TYPE_LOAD: case TYPE_LOAD_U: case TYPE_LOAD_UX: case TYPE_LOAD_EXT: case TYPE_LOAD_EXT_U: case TYPE_LOAD_EXT_UX: if ((rs6000_cpu == PROCESSOR_POWER6) && recog_memoized (dep_insn) && (INSN_CODE (dep_insn) >= 0)) { /* Adjust the cost for the case where the value written by a fixed point instruction is used within the address gen portion of a subsequent load(u)(x) */ switch (get_attr_type (dep_insn)) { case TYPE_LOAD: case TYPE_LOAD_U: case TYPE_LOAD_UX: case TYPE_CNTLZ: { if (set_to_load_agen (dep_insn, insn)) return 4; break; } case TYPE_LOAD_EXT: case TYPE_LOAD_EXT_U: case TYPE_LOAD_EXT_UX: case TYPE_VAR_SHIFT_ROTATE: case TYPE_VAR_DELAYED_COMPARE: { if (set_to_load_agen (dep_insn, insn)) return 6; break; } case TYPE_INTEGER: case TYPE_COMPARE: case TYPE_FAST_COMPARE: case TYPE_EXTS: case TYPE_SHIFT: case TYPE_INSERT_WORD: case TYPE_INSERT_DWORD: case TYPE_FPLOAD_U: case TYPE_FPLOAD_UX: case TYPE_STORE_U: case TYPE_STORE_UX: case TYPE_FPSTORE_U: case TYPE_FPSTORE_UX: { if (set_to_load_agen (dep_insn, insn)) return 3; break; } case TYPE_IMUL: case TYPE_IMUL2: case TYPE_IMUL3: case TYPE_LMUL: case TYPE_IMUL_COMPARE: case TYPE_LMUL_COMPARE: { if (set_to_load_agen (dep_insn, insn)) return 17; break; } case TYPE_IDIV: { if (set_to_load_agen (dep_insn, insn)) return 45; break; } case TYPE_LDIV: { if (set_to_load_agen (dep_insn, insn)) return 57; break; } default: break; } } break; case TYPE_FPLOAD: if ((rs6000_cpu == PROCESSOR_POWER6) && recog_memoized (dep_insn) && (INSN_CODE (dep_insn) >= 0) && (get_attr_type (dep_insn) == TYPE_MFFGPR)) return 2; default: break; } /* Fall out to return default cost. */ } break; case REG_DEP_OUTPUT: /* Output dependency; DEP_INSN writes a register that INSN writes some cycles later. */ if ((rs6000_cpu == PROCESSOR_POWER6) && recog_memoized (dep_insn) && (INSN_CODE (dep_insn) >= 0)) { attr_type = get_attr_type (insn); switch (attr_type) { case TYPE_FP: if (get_attr_type (dep_insn) == TYPE_FP) return 1; break; case TYPE_FPLOAD: if (get_attr_type (dep_insn) == TYPE_MFFGPR) return 2; break; default: break; } } case REG_DEP_ANTI: /* Anti dependency; DEP_INSN reads a register that INSN writes some cycles later. */ return 0; default: gcc_unreachable (); } return cost; } /* Debug version of rs6000_adjust_cost. */ static int rs6000_debug_adjust_cost (rtx insn, rtx link, rtx dep_insn, int cost) { int ret = rs6000_adjust_cost (insn, link, dep_insn, cost); if (ret != cost) { const char *dep; switch (REG_NOTE_KIND (link)) { default: dep = "unknown depencency"; break; case REG_DEP_TRUE: dep = "data dependency"; break; case REG_DEP_OUTPUT: dep = "output dependency"; break; case REG_DEP_ANTI: dep = "anti depencency"; break; } fprintf (stderr, "\nrs6000_adjust_cost, final cost = %d, orig cost = %d, " "%s, insn:\n", ret, cost, dep); debug_rtx (insn); } return ret; } /* The function returns a true if INSN is microcoded. Return false otherwise. */ static bool is_microcoded_insn (rtx insn) { if (!insn || !NONDEBUG_INSN_P (insn) || GET_CODE (PATTERN (insn)) == USE || GET_CODE (PATTERN (insn)) == CLOBBER) return false; if (rs6000_cpu_attr == CPU_CELL) return get_attr_cell_micro (insn) == CELL_MICRO_ALWAYS; if (rs6000_sched_groups) { enum attr_type type = get_attr_type (insn); if (type == TYPE_LOAD_EXT_U || type == TYPE_LOAD_EXT_UX || type == TYPE_LOAD_UX || type == TYPE_STORE_UX || type == TYPE_MFCR) return true; } return false; } /* The function returns true if INSN is cracked into 2 instructions by the processor (and therefore occupies 2 issue slots). */ static bool is_cracked_insn (rtx insn) { if (!insn || !NONDEBUG_INSN_P (insn) || GET_CODE (PATTERN (insn)) == USE || GET_CODE (PATTERN (insn)) == CLOBBER) return false; if (rs6000_sched_groups) { enum attr_type type = get_attr_type (insn); if (type == TYPE_LOAD_U || type == TYPE_STORE_U || type == TYPE_FPLOAD_U || type == TYPE_FPSTORE_U || type == TYPE_FPLOAD_UX || type == TYPE_FPSTORE_UX || type == TYPE_LOAD_EXT || type == TYPE_DELAYED_CR || type == TYPE_COMPARE || type == TYPE_DELAYED_COMPARE || type == TYPE_IMUL_COMPARE || type == TYPE_LMUL_COMPARE || type == TYPE_IDIV || type == TYPE_LDIV || type == TYPE_INSERT_WORD) return true; } return false; } /* The function returns true if INSN can be issued only from the branch slot. */ static bool is_branch_slot_insn (rtx insn) { if (!insn || !NONDEBUG_INSN_P (insn) || GET_CODE (PATTERN (insn)) == USE || GET_CODE (PATTERN (insn)) == CLOBBER) return false; if (rs6000_sched_groups) { enum attr_type type = get_attr_type (insn); if (type == TYPE_BRANCH || type == TYPE_JMPREG) return true; return false; } return false; } /* The function returns true if out_inst sets a value that is used in the address generation computation of in_insn */ static bool set_to_load_agen (rtx out_insn, rtx in_insn) { rtx out_set, in_set; /* For performance reasons, only handle the simple case where both loads are a single_set. */ out_set = single_set (out_insn); if (out_set) { in_set = single_set (in_insn); if (in_set) return reg_mentioned_p (SET_DEST (out_set), SET_SRC (in_set)); } return false; } /* The function returns true if the target storage location of out_insn is adjacent to the target storage location of in_insn */ /* Return 1 if memory locations are adjacent. */ static bool adjacent_mem_locations (rtx insn1, rtx insn2) { rtx a = get_store_dest (PATTERN (insn1)); rtx b = get_store_dest (PATTERN (insn2)); if ((GET_CODE (XEXP (a, 0)) == REG || (GET_CODE (XEXP (a, 0)) == PLUS && GET_CODE (XEXP (XEXP (a, 0), 1)) == CONST_INT)) && (GET_CODE (XEXP (b, 0)) == REG || (GET_CODE (XEXP (b, 0)) == PLUS && GET_CODE (XEXP (XEXP (b, 0), 1)) == CONST_INT))) { HOST_WIDE_INT val0 = 0, val1 = 0, val_diff; rtx reg0, reg1; if (GET_CODE (XEXP (a, 0)) == PLUS) { reg0 = XEXP (XEXP (a, 0), 0); val0 = INTVAL (XEXP (XEXP (a, 0), 1)); } else reg0 = XEXP (a, 0); if (GET_CODE (XEXP (b, 0)) == PLUS) { reg1 = XEXP (XEXP (b, 0), 0); val1 = INTVAL (XEXP (XEXP (b, 0), 1)); } else reg1 = XEXP (b, 0); val_diff = val1 - val0; return ((REGNO (reg0) == REGNO (reg1)) && ((MEM_SIZE (a) && val_diff == INTVAL (MEM_SIZE (a))) || (MEM_SIZE (b) && val_diff == -INTVAL (MEM_SIZE (b))))); } return false; } /* A C statement (sans semicolon) to update the integer scheduling priority INSN_PRIORITY (INSN). Increase the priority to execute the INSN earlier, reduce the priority to execute INSN later. Do not define this macro if you do not need to adjust the scheduling priorities of insns. */ static int rs6000_adjust_priority (rtx insn ATTRIBUTE_UNUSED, int priority) { /* On machines (like the 750) which have asymmetric integer units, where one integer unit can do multiply and divides and the other can't, reduce the priority of multiply/divide so it is scheduled before other integer operations. */ #if 0 if (! INSN_P (insn)) return priority; if (GET_CODE (PATTERN (insn)) == USE) return priority; switch (rs6000_cpu_attr) { case CPU_PPC750: switch (get_attr_type (insn)) { default: break; case TYPE_IMUL: case TYPE_IDIV: fprintf (stderr, "priority was %#x (%d) before adjustment\n", priority, priority); if (priority >= 0 && priority < 0x01000000) priority >>= 3; break; } } #endif if (insn_must_be_first_in_group (insn) && reload_completed && current_sched_info->sched_max_insns_priority && rs6000_sched_restricted_insns_priority) { /* Prioritize insns that can be dispatched only in the first dispatch slot. */ if (rs6000_sched_restricted_insns_priority == 1) /* Attach highest priority to insn. This means that in haifa-sched.c:ready_sort(), dispatch-slot restriction considerations precede 'priority' (critical path) considerations. */ return current_sched_info->sched_max_insns_priority; else if (rs6000_sched_restricted_insns_priority == 2) /* Increase priority of insn by a minimal amount. This means that in haifa-sched.c:ready_sort(), only 'priority' (critical path) considerations precede dispatch-slot restriction considerations. */ return (priority + 1); } if (rs6000_cpu == PROCESSOR_POWER6 && ((load_store_pendulum == -2 && is_load_insn (insn)) || (load_store_pendulum == 2 && is_store_insn (insn)))) /* Attach highest priority to insn if the scheduler has just issued two stores and this instruction is a load, or two loads and this instruction is a store. Power6 wants loads and stores scheduled alternately when possible */ return current_sched_info->sched_max_insns_priority; return priority; } /* Return true if the instruction is nonpipelined on the Cell. */ static bool is_nonpipeline_insn (rtx insn) { enum attr_type type; if (!insn || !NONDEBUG_INSN_P (insn) || GET_CODE (PATTERN (insn)) == USE || GET_CODE (PATTERN (insn)) == CLOBBER) return false; type = get_attr_type (insn); if (type == TYPE_IMUL || type == TYPE_IMUL2 || type == TYPE_IMUL3 || type == TYPE_LMUL || type == TYPE_IDIV || type == TYPE_LDIV || type == TYPE_SDIV || type == TYPE_DDIV || type == TYPE_SSQRT || type == TYPE_DSQRT || type == TYPE_MFCR || type == TYPE_MFCRF || type == TYPE_MFJMPR) { return true; } return false; } /* Return how many instructions the machine can issue per cycle. */ static int rs6000_issue_rate (void) { /* Unless scheduling for register pressure, use issue rate of 1 for first scheduling pass to decrease degradation. */ if (!reload_completed && !flag_sched_pressure) return 1; switch (rs6000_cpu_attr) { case CPU_RIOS1: /* ? */ case CPU_RS64A: case CPU_PPC601: /* ? */ case CPU_PPC7450: return 3; case CPU_PPC440: case CPU_PPC603: case CPU_PPC750: case CPU_PPC7400: case CPU_PPC8540: case CPU_CELL: case CPU_PPCE300C2: case CPU_PPCE300C3: case CPU_PPCE500MC: case CPU_PPCE500MC64: return 2; case CPU_RIOS2: case CPU_PPC476: case CPU_PPC604: case CPU_PPC604E: case CPU_PPC620: case CPU_PPC630: return 4; case CPU_POWER4: case CPU_POWER5: case CPU_POWER6: case CPU_POWER7: return 5; default: return 1; } } /* Return how many instructions to look ahead for better insn scheduling. */ static int rs6000_use_sched_lookahead (void) { if (rs6000_cpu_attr == CPU_PPC8540) return 4; if (rs6000_cpu_attr == CPU_CELL) return (reload_completed ? 8 : 0); return 0; } /* We are choosing insn from the ready queue. Return nonzero if INSN can be chosen. */ static int rs6000_use_sched_lookahead_guard (rtx insn) { if (rs6000_cpu_attr != CPU_CELL) return 1; if (insn == NULL_RTX || !INSN_P (insn)) abort (); if (!reload_completed || is_nonpipeline_insn (insn) || is_microcoded_insn (insn)) return 0; return 1; } /* Determine is PAT refers to memory. */ static bool is_mem_ref (rtx pat) { const char * fmt; int i, j; bool ret = false; /* stack_tie does not produce any real memory traffic. */ if (GET_CODE (pat) == UNSPEC && XINT (pat, 1) == UNSPEC_TIE) return false; if (GET_CODE (pat) == MEM) return true; /* Recursively process the pattern. */ fmt = GET_RTX_FORMAT (GET_CODE (pat)); for (i = GET_RTX_LENGTH (GET_CODE (pat)) - 1; i >= 0 && !ret; i--) { if (fmt[i] == 'e') ret |= is_mem_ref (XEXP (pat, i)); else if (fmt[i] == 'E') for (j = XVECLEN (pat, i) - 1; j >= 0; j--) ret |= is_mem_ref (XVECEXP (pat, i, j)); } return ret; } /* Determine if PAT is a PATTERN of a load insn. */ static bool is_load_insn1 (rtx pat) { if (!pat || pat == NULL_RTX) return false; if (GET_CODE (pat) == SET) return is_mem_ref (SET_SRC (pat)); if (GET_CODE (pat) == PARALLEL) { int i; for (i = 0; i < XVECLEN (pat, 0); i++) if (is_load_insn1 (XVECEXP (pat, 0, i))) return true; } return false; } /* Determine if INSN loads from memory. */ static bool is_load_insn (rtx insn) { if (!insn || !INSN_P (insn)) return false; if (GET_CODE (insn) == CALL_INSN) return false; return is_load_insn1 (PATTERN (insn)); } /* Determine if PAT is a PATTERN of a store insn. */ static bool is_store_insn1 (rtx pat) { if (!pat || pat == NULL_RTX) return false; if (GET_CODE (pat) == SET) return is_mem_ref (SET_DEST (pat)); if (GET_CODE (pat) == PARALLEL) { int i; for (i = 0; i < XVECLEN (pat, 0); i++) if (is_store_insn1 (XVECEXP (pat, 0, i))) return true; } return false; } /* Determine if INSN stores to memory. */ static bool is_store_insn (rtx insn) { if (!insn || !INSN_P (insn)) return false; return is_store_insn1 (PATTERN (insn)); } /* Return the dest of a store insn. */ static rtx get_store_dest (rtx pat) { gcc_assert (is_store_insn1 (pat)); if (GET_CODE (pat) == SET) return SET_DEST (pat); else if (GET_CODE (pat) == PARALLEL) { int i; for (i = 0; i < XVECLEN (pat, 0); i++) { rtx inner_pat = XVECEXP (pat, 0, i); if (GET_CODE (inner_pat) == SET && is_mem_ref (SET_DEST (inner_pat))) return inner_pat; } } /* We shouldn't get here, because we should have either a simple store insn or a store with update which are covered above. */ gcc_unreachable(); } /* Returns whether the dependence between INSN and NEXT is considered costly by the given target. */ static bool rs6000_is_costly_dependence (dep_t dep, int cost, int distance) { rtx insn; rtx next; /* If the flag is not enabled - no dependence is considered costly; allow all dependent insns in the same group. This is the most aggressive option. */ if (rs6000_sched_costly_dep == no_dep_costly) return false; /* If the flag is set to 1 - a dependence is always considered costly; do not allow dependent instructions in the same group. This is the most conservative option. */ if (rs6000_sched_costly_dep == all_deps_costly) return true; insn = DEP_PRO (dep); next = DEP_CON (dep); if (rs6000_sched_costly_dep == store_to_load_dep_costly && is_load_insn (next) && is_store_insn (insn)) /* Prevent load after store in the same group. */ return true; if (rs6000_sched_costly_dep == true_store_to_load_dep_costly && is_load_insn (next) && is_store_insn (insn) && DEP_TYPE (dep) == REG_DEP_TRUE) /* Prevent load after store in the same group if it is a true dependence. */ return true; /* The flag is set to X; dependences with latency >= X are considered costly, and will not be scheduled in the same group. */ if (rs6000_sched_costly_dep <= max_dep_latency && ((cost - distance) >= (int)rs6000_sched_costly_dep)) return true; return false; } /* Return the next insn after INSN that is found before TAIL is reached, skipping any "non-active" insns - insns that will not actually occupy an issue slot. Return NULL_RTX if such an insn is not found. */ static rtx get_next_active_insn (rtx insn, rtx tail) { if (insn == NULL_RTX || insn == tail) return NULL_RTX; while (1) { insn = NEXT_INSN (insn); if (insn == NULL_RTX || insn == tail) return NULL_RTX; if (CALL_P (insn) || JUMP_P (insn) || (NONJUMP_INSN_P (insn) && GET_CODE (PATTERN (insn)) != USE && GET_CODE (PATTERN (insn)) != CLOBBER && INSN_CODE (insn) != CODE_FOR_stack_tie)) break; } return insn; } /* We are about to begin issuing insns for this clock cycle. */ static int rs6000_sched_reorder (FILE *dump ATTRIBUTE_UNUSED, int sched_verbose, rtx *ready ATTRIBUTE_UNUSED, int *pn_ready ATTRIBUTE_UNUSED, int clock_var ATTRIBUTE_UNUSED) { int n_ready = *pn_ready; if (sched_verbose) fprintf (dump, "// rs6000_sched_reorder :\n"); /* Reorder the ready list, if the second to last ready insn is a nonepipeline insn. */ if (rs6000_cpu_attr == CPU_CELL && n_ready > 1) { if (is_nonpipeline_insn (ready[n_ready - 1]) && (recog_memoized (ready[n_ready - 2]) > 0)) /* Simply swap first two insns. */ { rtx tmp = ready[n_ready - 1]; ready[n_ready - 1] = ready[n_ready - 2]; ready[n_ready - 2] = tmp; } } if (rs6000_cpu == PROCESSOR_POWER6) load_store_pendulum = 0; return rs6000_issue_rate (); } /* Like rs6000_sched_reorder, but called after issuing each insn. */ static int rs6000_sched_reorder2 (FILE *dump, int sched_verbose, rtx *ready, int *pn_ready, int clock_var ATTRIBUTE_UNUSED) { if (sched_verbose) fprintf (dump, "// rs6000_sched_reorder2 :\n"); /* For Power6, we need to handle some special cases to try and keep the store queue from overflowing and triggering expensive flushes. This code monitors how load and store instructions are being issued and skews the ready list one way or the other to increase the likelihood that a desired instruction is issued at the proper time. A couple of things are done. First, we maintain a "load_store_pendulum" to track the current state of load/store issue. - If the pendulum is at zero, then no loads or stores have been issued in the current cycle so we do nothing. - If the pendulum is 1, then a single load has been issued in this cycle and we attempt to locate another load in the ready list to issue with it. - If the pendulum is -2, then two stores have already been issued in this cycle, so we increase the priority of the first load in the ready list to increase it's likelihood of being chosen first in the next cycle. - If the pendulum is -1, then a single store has been issued in this cycle and we attempt to locate another store in the ready list to issue with it, preferring a store to an adjacent memory location to facilitate store pairing in the store queue. - If the pendulum is 2, then two loads have already been issued in this cycle, so we increase the priority of the first store in the ready list to increase it's likelihood of being chosen first in the next cycle. - If the pendulum < -2 or > 2, then do nothing. Note: This code covers the most common scenarios. There exist non load/store instructions which make use of the LSU and which would need to be accounted for to strictly model the behavior of the machine. Those instructions are currently unaccounted for to help minimize compile time overhead of this code. */ if (rs6000_cpu == PROCESSOR_POWER6 && last_scheduled_insn) { int pos; int i; rtx tmp; if (is_store_insn (last_scheduled_insn)) /* Issuing a store, swing the load_store_pendulum to the left */ load_store_pendulum--; else if (is_load_insn (last_scheduled_insn)) /* Issuing a load, swing the load_store_pendulum to the right */ load_store_pendulum++; else return cached_can_issue_more; /* If the pendulum is balanced, or there is only one instruction on the ready list, then all is well, so return. */ if ((load_store_pendulum == 0) || (*pn_ready <= 1)) return cached_can_issue_more; if (load_store_pendulum == 1) { /* A load has been issued in this cycle. Scan the ready list for another load to issue with it */ pos = *pn_ready-1; while (pos >= 0) { if (is_load_insn (ready[pos])) { /* Found a load. Move it to the head of the ready list, and adjust it's priority so that it is more likely to stay there */ tmp = ready[pos]; for (i=pos; i<*pn_ready-1; i++) ready[i] = ready[i + 1]; ready[*pn_ready-1] = tmp; if (!sel_sched_p () && INSN_PRIORITY_KNOWN (tmp)) INSN_PRIORITY (tmp)++; break; } pos--; } } else if (load_store_pendulum == -2) { /* Two stores have been issued in this cycle. Increase the priority of the first load in the ready list to favor it for issuing in the next cycle. */ pos = *pn_ready-1; while (pos >= 0) { if (is_load_insn (ready[pos]) && !sel_sched_p () && INSN_PRIORITY_KNOWN (ready[pos])) { INSN_PRIORITY (ready[pos])++; /* Adjust the pendulum to account for the fact that a load was found and increased in priority. This is to prevent increasing the priority of multiple loads */ load_store_pendulum--; break; } pos--; } } else if (load_store_pendulum == -1) { /* A store has been issued in this cycle. Scan the ready list for another store to issue with it, preferring a store to an adjacent memory location */ int first_store_pos = -1; pos = *pn_ready-1; while (pos >= 0) { if (is_store_insn (ready[pos])) { /* Maintain the index of the first store found on the list */ if (first_store_pos == -1) first_store_pos = pos; if (is_store_insn (last_scheduled_insn) && adjacent_mem_locations (last_scheduled_insn,ready[pos])) { /* Found an adjacent store. Move it to the head of the ready list, and adjust it's priority so that it is more likely to stay there */ tmp = ready[pos]; for (i=pos; i<*pn_ready-1; i++) ready[i] = ready[i + 1]; ready[*pn_ready-1] = tmp; if (!sel_sched_p () && INSN_PRIORITY_KNOWN (tmp)) INSN_PRIORITY (tmp)++; first_store_pos = -1; break; }; } pos--; } if (first_store_pos >= 0) { /* An adjacent store wasn't found, but a non-adjacent store was, so move the non-adjacent store to the front of the ready list, and adjust its priority so that it is more likely to stay there. */ tmp = ready[first_store_pos]; for (i=first_store_pos; i<*pn_ready-1; i++) ready[i] = ready[i + 1]; ready[*pn_ready-1] = tmp; if (!sel_sched_p () && INSN_PRIORITY_KNOWN (tmp)) INSN_PRIORITY (tmp)++; } } else if (load_store_pendulum == 2) { /* Two loads have been issued in this cycle. Increase the priority of the first store in the ready list to favor it for issuing in the next cycle. */ pos = *pn_ready-1; while (pos >= 0) { if (is_store_insn (ready[pos]) && !sel_sched_p () && INSN_PRIORITY_KNOWN (ready[pos])) { INSN_PRIORITY (ready[pos])++; /* Adjust the pendulum to account for the fact that a store was found and increased in priority. This is to prevent increasing the priority of multiple stores */ load_store_pendulum++; break; } pos--; } } } return cached_can_issue_more; } /* Return whether the presence of INSN causes a dispatch group termination of group WHICH_GROUP. If WHICH_GROUP == current_group, this function will return true if INSN causes the termination of the current group (i.e, the dispatch group to which INSN belongs). This means that INSN will be the last insn in the group it belongs to. If WHICH_GROUP == previous_group, this function will return true if INSN causes the termination of the previous group (i.e, the dispatch group that precedes the group to which INSN belongs). This means that INSN will be the first insn in the group it belongs to). */ static bool insn_terminates_group_p (rtx insn, enum group_termination which_group) { bool first, last; if (! insn) return false; first = insn_must_be_first_in_group (insn); last = insn_must_be_last_in_group (insn); if (first && last) return true; if (which_group == current_group) return last; else if (which_group == previous_group) return first; return false; } static bool insn_must_be_first_in_group (rtx insn) { enum attr_type type; if (!insn || GET_CODE (insn) == NOTE || DEBUG_INSN_P (insn) || GET_CODE (PATTERN (insn)) == USE || GET_CODE (PATTERN (insn)) == CLOBBER) return false; switch (rs6000_cpu) { case PROCESSOR_POWER5: if (is_cracked_insn (insn)) return true; case PROCESSOR_POWER4: if (is_microcoded_insn (insn)) return true; if (!rs6000_sched_groups) return false; type = get_attr_type (insn); switch (type) { case TYPE_MFCR: case TYPE_MFCRF: case TYPE_MTCR: case TYPE_DELAYED_CR: case TYPE_CR_LOGICAL: case TYPE_MTJMPR: case TYPE_MFJMPR: case TYPE_IDIV: case TYPE_LDIV: case TYPE_LOAD_L: case TYPE_STORE_C: case TYPE_ISYNC: case TYPE_SYNC: return true; default: break; } break; case PROCESSOR_POWER6: type = get_attr_type (insn); switch (type) { case TYPE_INSERT_DWORD: case TYPE_EXTS: case TYPE_CNTLZ: case TYPE_SHIFT: case TYPE_VAR_SHIFT_ROTATE: case TYPE_TRAP: case TYPE_IMUL: case TYPE_IMUL2: case TYPE_IMUL3: case TYPE_LMUL: case TYPE_IDIV: case TYPE_INSERT_WORD: case TYPE_DELAYED_COMPARE: case TYPE_IMUL_COMPARE: case TYPE_LMUL_COMPARE: case TYPE_FPCOMPARE: case TYPE_MFCR: case TYPE_MTCR: case TYPE_MFJMPR: case TYPE_MTJMPR: case TYPE_ISYNC: case TYPE_SYNC: case TYPE_LOAD_L: case TYPE_STORE_C: case TYPE_LOAD_U: case TYPE_LOAD_UX: case TYPE_LOAD_EXT_UX: case TYPE_STORE_U: case TYPE_STORE_UX: case TYPE_FPLOAD_U: case TYPE_FPLOAD_UX: case TYPE_FPSTORE_U: case TYPE_FPSTORE_UX: return true; default: break; } break; case PROCESSOR_POWER7: type = get_attr_type (insn); switch (type) { case TYPE_CR_LOGICAL: case TYPE_MFCR: case TYPE_MFCRF: case TYPE_MTCR: case TYPE_IDIV: case TYPE_LDIV: case TYPE_COMPARE: case TYPE_DELAYED_COMPARE: case TYPE_VAR_DELAYED_COMPARE: case TYPE_ISYNC: case TYPE_LOAD_L: case TYPE_STORE_C: case TYPE_LOAD_U: case TYPE_LOAD_UX: case TYPE_LOAD_EXT: case TYPE_LOAD_EXT_U: case TYPE_LOAD_EXT_UX: case TYPE_STORE_U: case TYPE_STORE_UX: case TYPE_FPLOAD_U: case TYPE_FPLOAD_UX: case TYPE_FPSTORE_U: case TYPE_FPSTORE_UX: case TYPE_MFJMPR: case TYPE_MTJMPR: return true; default: break; } break; default: break; } return false; } static bool insn_must_be_last_in_group (rtx insn) { enum attr_type type; if (!insn || GET_CODE (insn) == NOTE || DEBUG_INSN_P (insn) || GET_CODE (PATTERN (insn)) == USE || GET_CODE (PATTERN (insn)) == CLOBBER) return false; switch (rs6000_cpu) { case PROCESSOR_POWER4: case PROCESSOR_POWER5: if (is_microcoded_insn (insn)) return true; if (is_branch_slot_insn (insn)) return true; break; case PROCESSOR_POWER6: type = get_attr_type (insn); switch (type) { case TYPE_EXTS: case TYPE_CNTLZ: case TYPE_SHIFT: case TYPE_VAR_SHIFT_ROTATE: case TYPE_TRAP: case TYPE_IMUL: case TYPE_IMUL2: case TYPE_IMUL3: case TYPE_LMUL: case TYPE_IDIV: case TYPE_DELAYED_COMPARE: case TYPE_IMUL_COMPARE: case TYPE_LMUL_COMPARE: case TYPE_FPCOMPARE: case TYPE_MFCR: case TYPE_MTCR: case TYPE_MFJMPR: case TYPE_MTJMPR: case TYPE_ISYNC: case TYPE_SYNC: case TYPE_LOAD_L: case TYPE_STORE_C: return true; default: break; } break; case PROCESSOR_POWER7: type = get_attr_type (insn); switch (type) { case TYPE_ISYNC: case TYPE_SYNC: case TYPE_LOAD_L: case TYPE_STORE_C: case TYPE_LOAD_EXT_U: case TYPE_LOAD_EXT_UX: case TYPE_STORE_UX: return true; default: break; } break; default: break; } return false; } /* Return true if it is recommended to keep NEXT_INSN "far" (in a separate dispatch group) from the insns in GROUP_INSNS. Return false otherwise. */ static bool is_costly_group (rtx *group_insns, rtx next_insn) { int i; int issue_rate = rs6000_issue_rate (); for (i = 0; i < issue_rate; i++) { sd_iterator_def sd_it; dep_t dep; rtx insn = group_insns[i]; if (!insn) continue; FOR_EACH_DEP (insn, SD_LIST_FORW, sd_it, dep) { rtx next = DEP_CON (dep); if (next == next_insn && rs6000_is_costly_dependence (dep, dep_cost (dep), 0)) return true; } } return false; } /* Utility of the function redefine_groups. Check if it is too costly to schedule NEXT_INSN together with GROUP_INSNS in the same dispatch group. If so, insert nops before NEXT_INSN, in order to keep it "far" (in a separate group) from GROUP_INSNS, following one of the following schemes, depending on the value of the flag -minsert_sched_nops = X: (1) X == sched_finish_regroup_exact: insert exactly as many nops as needed in order to force NEXT_INSN into a separate group. (2) X < sched_finish_regroup_exact: insert exactly X nops. GROUP_END, CAN_ISSUE_MORE and GROUP_COUNT record the state after nop insertion (has a group just ended, how many vacant issue slots remain in the last group, and how many dispatch groups were encountered so far). */ static int force_new_group (int sched_verbose, FILE *dump, rtx *group_insns, rtx next_insn, bool *group_end, int can_issue_more, int *group_count) { rtx nop; bool force; int issue_rate = rs6000_issue_rate (); bool end = *group_end; int i; if (next_insn == NULL_RTX || DEBUG_INSN_P (next_insn)) return can_issue_more; if (rs6000_sched_insert_nops > sched_finish_regroup_exact) return can_issue_more; force = is_costly_group (group_insns, next_insn); if (!force) return can_issue_more; if (sched_verbose > 6) fprintf (dump,"force: group count = %d, can_issue_more = %d\n", *group_count ,can_issue_more); if (rs6000_sched_insert_nops == sched_finish_regroup_exact) { if (*group_end) can_issue_more = 0; /* Since only a branch can be issued in the last issue_slot, it is sufficient to insert 'can_issue_more - 1' nops if next_insn is not a branch. If next_insn is a branch, we insert 'can_issue_more' nops; in this case the last nop will start a new group and the branch will be forced to the new group. */ if (can_issue_more && !is_branch_slot_insn (next_insn)) can_issue_more--; while (can_issue_more > 0) { nop = gen_nop (); emit_insn_before (nop, next_insn); can_issue_more--; } *group_end = true; return 0; } if (rs6000_sched_insert_nops < sched_finish_regroup_exact) { int n_nops = rs6000_sched_insert_nops; /* Nops can't be issued from the branch slot, so the effective issue_rate for nops is 'issue_rate - 1'. */ if (can_issue_more == 0) can_issue_more = issue_rate; can_issue_more--; if (can_issue_more == 0) { can_issue_more = issue_rate - 1; (*group_count)++; end = true; for (i = 0; i < issue_rate; i++) { group_insns[i] = 0; } } while (n_nops > 0) { nop = gen_nop (); emit_insn_before (nop, next_insn); if (can_issue_more == issue_rate - 1) /* new group begins */ end = false; can_issue_more--; if (can_issue_more == 0) { can_issue_more = issue_rate - 1; (*group_count)++; end = true; for (i = 0; i < issue_rate; i++) { group_insns[i] = 0; } } n_nops--; } /* Scale back relative to 'issue_rate' (instead of 'issue_rate - 1'). */ can_issue_more++; /* Is next_insn going to start a new group? */ *group_end = (end || (can_issue_more == 1 && !is_branch_slot_insn (next_insn)) || (can_issue_more <= 2 && is_cracked_insn (next_insn)) || (can_issue_more < issue_rate && insn_terminates_group_p (next_insn, previous_group))); if (*group_end && end) (*group_count)--; if (sched_verbose > 6) fprintf (dump, "done force: group count = %d, can_issue_more = %d\n", *group_count, can_issue_more); return can_issue_more; } return can_issue_more; } /* This function tries to synch the dispatch groups that the compiler "sees" with the dispatch groups that the processor dispatcher is expected to form in practice. It tries to achieve this synchronization by forcing the estimated processor grouping on the compiler (as opposed to the function 'pad_goups' which tries to force the scheduler's grouping on the processor). The function scans the insn sequence between PREV_HEAD_INSN and TAIL and examines the (estimated) dispatch groups that will be formed by the processor dispatcher. It marks these group boundaries to reflect the estimated processor grouping, overriding the grouping that the scheduler had marked. Depending on the value of the flag '-minsert-sched-nops' this function can force certain insns into separate groups or force a certain distance between them by inserting nops, for example, if there exists a "costly dependence" between the insns. The function estimates the group boundaries that the processor will form as follows: It keeps track of how many vacant issue slots are available after each insn. A subsequent insn will start a new group if one of the following 4 cases applies: - no more vacant issue slots remain in the current dispatch group. - only the last issue slot, which is the branch slot, is vacant, but the next insn is not a branch. - only the last 2 or less issue slots, including the branch slot, are vacant, which means that a cracked insn (which occupies two issue slots) can't be issued in this group. - less than 'issue_rate' slots are vacant, and the next insn always needs to start a new group. */ static int redefine_groups (FILE *dump, int sched_verbose, rtx prev_head_insn, rtx tail) { rtx insn, next_insn; int issue_rate; int can_issue_more; int slot, i; bool group_end; int group_count = 0; rtx *group_insns; /* Initialize. */ issue_rate = rs6000_issue_rate (); group_insns = XALLOCAVEC (rtx, issue_rate); for (i = 0; i < issue_rate; i++) { group_insns[i] = 0; } can_issue_more = issue_rate; slot = 0; insn = get_next_active_insn (prev_head_insn, tail); group_end = false; while (insn != NULL_RTX) { slot = (issue_rate - can_issue_more); group_insns[slot] = insn; can_issue_more = rs6000_variable_issue (dump, sched_verbose, insn, can_issue_more); if (insn_terminates_group_p (insn, current_group)) can_issue_more = 0; next_insn = get_next_active_insn (insn, tail); if (next_insn == NULL_RTX) return group_count + 1; /* Is next_insn going to start a new group? */ group_end = (can_issue_more == 0 || (can_issue_more == 1 && !is_branch_slot_insn (next_insn)) || (can_issue_more <= 2 && is_cracked_insn (next_insn)) || (can_issue_more < issue_rate && insn_terminates_group_p (next_insn, previous_group))); can_issue_more = force_new_group (sched_verbose, dump, group_insns, next_insn, &group_end, can_issue_more, &group_count); if (group_end) { group_count++; can_issue_more = 0; for (i = 0; i < issue_rate; i++) { group_insns[i] = 0; } } if (GET_MODE (next_insn) == TImode && can_issue_more) PUT_MODE (next_insn, VOIDmode); else if (!can_issue_more && GET_MODE (next_insn) != TImode) PUT_MODE (next_insn, TImode); insn = next_insn; if (can_issue_more == 0) can_issue_more = issue_rate; } /* while */ return group_count; } /* Scan the insn sequence between PREV_HEAD_INSN and TAIL and examine the dispatch group boundaries that the scheduler had marked. Pad with nops any dispatch groups which have vacant issue slots, in order to force the scheduler's grouping on the processor dispatcher. The function returns the number of dispatch groups found. */ static int pad_groups (FILE *dump, int sched_verbose, rtx prev_head_insn, rtx tail) { rtx insn, next_insn; rtx nop; int issue_rate; int can_issue_more; int group_end; int group_count = 0; /* Initialize issue_rate. */ issue_rate = rs6000_issue_rate (); can_issue_more = issue_rate; insn = get_next_active_insn (prev_head_insn, tail); next_insn = get_next_active_insn (insn, tail); while (insn != NULL_RTX) { can_issue_more = rs6000_variable_issue (dump, sched_verbose, insn, can_issue_more); group_end = (next_insn == NULL_RTX || GET_MODE (next_insn) == TImode); if (next_insn == NULL_RTX) break; if (group_end) { /* If the scheduler had marked group termination at this location (between insn and next_insn), and neither insn nor next_insn will force group termination, pad the group with nops to force group termination. */ if (can_issue_more && (rs6000_sched_insert_nops == sched_finish_pad_groups) && !insn_terminates_group_p (insn, current_group) && !insn_terminates_group_p (next_insn, previous_group)) { if (!is_branch_slot_insn (next_insn)) can_issue_more--; while (can_issue_more) { nop = gen_nop (); emit_insn_before (nop, next_insn); can_issue_more--; } } can_issue_more = issue_rate; group_count++; } insn = next_insn; next_insn = get_next_active_insn (insn, tail); } return group_count; } /* We're beginning a new block. Initialize data structures as necessary. */ static void rs6000_sched_init (FILE *dump ATTRIBUTE_UNUSED, int sched_verbose ATTRIBUTE_UNUSED, int max_ready ATTRIBUTE_UNUSED) { last_scheduled_insn = NULL_RTX; load_store_pendulum = 0; } /* The following function is called at the end of scheduling BB. After reload, it inserts nops at insn group bundling. */ static void rs6000_sched_finish (FILE *dump, int sched_verbose) { int n_groups; if (sched_verbose) fprintf (dump, "=== Finishing schedule.\n"); if (reload_completed && rs6000_sched_groups) { /* Do not run sched_finish hook when selective scheduling enabled. */ if (sel_sched_p ()) return; if (rs6000_sched_insert_nops == sched_finish_none) return; if (rs6000_sched_insert_nops == sched_finish_pad_groups) n_groups = pad_groups (dump, sched_verbose, current_sched_info->prev_head, current_sched_info->next_tail); else n_groups = redefine_groups (dump, sched_verbose, current_sched_info->prev_head, current_sched_info->next_tail); if (sched_verbose >= 6) { fprintf (dump, "ngroups = %d\n", n_groups); print_rtl (dump, current_sched_info->prev_head); fprintf (dump, "Done finish_sched\n"); } } } struct _rs6000_sched_context { short cached_can_issue_more; rtx last_scheduled_insn; int load_store_pendulum; }; typedef struct _rs6000_sched_context rs6000_sched_context_def; typedef rs6000_sched_context_def *rs6000_sched_context_t; /* Allocate store for new scheduling context. */ static void * rs6000_alloc_sched_context (void) { return xmalloc (sizeof (rs6000_sched_context_def)); } /* If CLEAN_P is true then initializes _SC with clean data, and from the global context otherwise. */ static void rs6000_init_sched_context (void *_sc, bool clean_p) { rs6000_sched_context_t sc = (rs6000_sched_context_t) _sc; if (clean_p) { sc->cached_can_issue_more = 0; sc->last_scheduled_insn = NULL_RTX; sc->load_store_pendulum = 0; } else { sc->cached_can_issue_more = cached_can_issue_more; sc->last_scheduled_insn = last_scheduled_insn; sc->load_store_pendulum = load_store_pendulum; } } /* Sets the global scheduling context to the one pointed to by _SC. */ static void rs6000_set_sched_context (void *_sc) { rs6000_sched_context_t sc = (rs6000_sched_context_t) _sc; gcc_assert (sc != NULL); cached_can_issue_more = sc->cached_can_issue_more; last_scheduled_insn = sc->last_scheduled_insn; load_store_pendulum = sc->load_store_pendulum; } /* Free _SC. */ static void rs6000_free_sched_context (void *_sc) { gcc_assert (_sc != NULL); free (_sc); } /* Length in units of the trampoline for entering a nested function. */ int rs6000_trampoline_size (void) { int ret = 0; switch (DEFAULT_ABI) { default: gcc_unreachable (); case ABI_AIX: ret = (TARGET_32BIT) ? 12 : 24; break; case ABI_DARWIN: case ABI_V4: ret = (TARGET_32BIT) ? 40 : 48; break; } return ret; } /* Emit RTL insns to initialize the variable parts of a trampoline. FNADDR is an RTX for the address of the function's pure code. CXT is an RTX for the static chain value for the function. */ static void rs6000_trampoline_init (rtx m_tramp, tree fndecl, rtx cxt) { int regsize = (TARGET_32BIT) ? 4 : 8; rtx fnaddr = XEXP (DECL_RTL (fndecl), 0); rtx ctx_reg = force_reg (Pmode, cxt); rtx addr = force_reg (Pmode, XEXP (m_tramp, 0)); switch (DEFAULT_ABI) { default: gcc_unreachable (); /* Under AIX, just build the 3 word function descriptor */ case ABI_AIX: { rtx fnmem = gen_const_mem (Pmode, force_reg (Pmode, fnaddr)); rtx fn_reg = gen_reg_rtx (Pmode); rtx toc_reg = gen_reg_rtx (Pmode); /* Macro to shorten the code expansions below. */ # define MEM_PLUS(MEM, OFFSET) adjust_address (MEM, Pmode, OFFSET) m_tramp = replace_equiv_address (m_tramp, addr); emit_move_insn (fn_reg, MEM_PLUS (fnmem, 0)); emit_move_insn (toc_reg, MEM_PLUS (fnmem, regsize)); emit_move_insn (MEM_PLUS (m_tramp, 0), fn_reg); emit_move_insn (MEM_PLUS (m_tramp, regsize), toc_reg); emit_move_insn (MEM_PLUS (m_tramp, 2*regsize), ctx_reg); # undef MEM_PLUS } break; /* Under V.4/eabi/darwin, __trampoline_setup does the real work. */ case ABI_DARWIN: case ABI_V4: emit_library_call (gen_rtx_SYMBOL_REF (Pmode, "__trampoline_setup"), LCT_NORMAL, VOIDmode, 4, addr, Pmode, GEN_INT (rs6000_trampoline_size ()), SImode, fnaddr, Pmode, ctx_reg, Pmode); break; } } /* Handle the "altivec" attribute. The attribute may have arguments as follows: __attribute__((altivec(vector__))) __attribute__((altivec(pixel__))) (always followed by 'unsigned short') __attribute__((altivec(bool__))) (always followed by 'unsigned') and may appear more than once (e.g., 'vector bool char') in a given declaration. */ static tree rs6000_handle_altivec_attribute (tree *node, tree name ATTRIBUTE_UNUSED, tree args, int flags ATTRIBUTE_UNUSED, bool *no_add_attrs) { tree type = *node, result = NULL_TREE; enum machine_mode mode; int unsigned_p; char altivec_type = ((args && TREE_CODE (args) == TREE_LIST && TREE_VALUE (args) && TREE_CODE (TREE_VALUE (args)) == IDENTIFIER_NODE) ? *IDENTIFIER_POINTER (TREE_VALUE (args)) : '?'); while (POINTER_TYPE_P (type) || TREE_CODE (type) == FUNCTION_TYPE || TREE_CODE (type) == METHOD_TYPE || TREE_CODE (type) == ARRAY_TYPE) type = TREE_TYPE (type); mode = TYPE_MODE (type); /* Check for invalid AltiVec type qualifiers. */ if (type == long_double_type_node) error ("use of %<long double%> in AltiVec types is invalid"); else if (type == boolean_type_node) error ("use of boolean types in AltiVec types is invalid"); else if (TREE_CODE (type) == COMPLEX_TYPE) error ("use of %<complex%> in AltiVec types is invalid"); else if (DECIMAL_FLOAT_MODE_P (mode)) error ("use of decimal floating point types in AltiVec types is invalid"); else if (!TARGET_VSX) { if (type == long_unsigned_type_node || type == long_integer_type_node) { if (TARGET_64BIT) error ("use of %<long%> in AltiVec types is invalid for " "64-bit code without -mvsx"); else if (rs6000_warn_altivec_long) warning (0, "use of %<long%> in AltiVec types is deprecated; " "use %<int%>"); } else if (type == long_long_unsigned_type_node || type == long_long_integer_type_node) error ("use of %<long long%> in AltiVec types is invalid without " "-mvsx"); else if (type == double_type_node) error ("use of %<double%> in AltiVec types is invalid without -mvsx"); } switch (altivec_type) { case 'v': unsigned_p = TYPE_UNSIGNED (type); switch (mode) { case DImode: result = (unsigned_p ? unsigned_V2DI_type_node : V2DI_type_node); break; case SImode: result = (unsigned_p ? unsigned_V4SI_type_node : V4SI_type_node); break; case HImode: result = (unsigned_p ? unsigned_V8HI_type_node : V8HI_type_node); break; case QImode: result = (unsigned_p ? unsigned_V16QI_type_node : V16QI_type_node); break; case SFmode: result = V4SF_type_node; break; case DFmode: result = V2DF_type_node; break; /* If the user says 'vector int bool', we may be handed the 'bool' attribute _before_ the 'vector' attribute, and so select the proper type in the 'b' case below. */ case V4SImode: case V8HImode: case V16QImode: case V4SFmode: case V2DImode: case V2DFmode: result = type; default: break; } break; case 'b': switch (mode) { case DImode: case V2DImode: result = bool_V2DI_type_node; break; case SImode: case V4SImode: result = bool_V4SI_type_node; break; case HImode: case V8HImode: result = bool_V8HI_type_node; break; case QImode: case V16QImode: result = bool_V16QI_type_node; default: break; } break; case 'p': switch (mode) { case V8HImode: result = pixel_V8HI_type_node; default: break; } default: break; } /* Propagate qualifiers attached to the element type onto the vector type. */ if (result && result != type && TYPE_QUALS (type)) result = build_qualified_type (result, TYPE_QUALS (type)); *no_add_attrs = true; /* No need to hang on to the attribute. */ if (result) *node = lang_hooks.types.reconstruct_complex_type (*node, result); return NULL_TREE; } /* AltiVec defines four built-in scalar types that serve as vector elements; we must teach the compiler how to mangle them. */ static const char * rs6000_mangle_type (const_tree type) { type = TYPE_MAIN_VARIANT (type); if (TREE_CODE (type) != VOID_TYPE && TREE_CODE (type) != BOOLEAN_TYPE && TREE_CODE (type) != INTEGER_TYPE && TREE_CODE (type) != REAL_TYPE) return NULL; if (type == bool_char_type_node) return "U6__boolc"; if (type == bool_short_type_node) return "U6__bools"; if (type == pixel_type_node) return "u7__pixel"; if (type == bool_int_type_node) return "U6__booli"; if (type == bool_long_type_node) return "U6__booll"; /* Mangle IBM extended float long double as `g' (__float128) on powerpc*-linux where long-double-64 previously was the default. */ if (TYPE_MAIN_VARIANT (type) == long_double_type_node && TARGET_ELF && TARGET_LONG_DOUBLE_128 && !TARGET_IEEEQUAD) return "g"; /* For all other types, use normal C++ mangling. */ return NULL; } /* Handle a "longcall" or "shortcall" attribute; arguments as in struct attribute_spec.handler. */ static tree rs6000_handle_longcall_attribute (tree *node, tree name, tree args ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED, bool *no_add_attrs) { if (TREE_CODE (*node) != FUNCTION_TYPE && TREE_CODE (*node) != FIELD_DECL && TREE_CODE (*node) != TYPE_DECL) { warning (OPT_Wattributes, "%qE attribute only applies to functions", name); *no_add_attrs = true; } return NULL_TREE; } /* Set longcall attributes on all functions declared when rs6000_default_long_calls is true. */ static void rs6000_set_default_type_attributes (tree type) { if (rs6000_default_long_calls && (TREE_CODE (type) == FUNCTION_TYPE || TREE_CODE (type) == METHOD_TYPE)) TYPE_ATTRIBUTES (type) = tree_cons (get_identifier ("longcall"), NULL_TREE, TYPE_ATTRIBUTES (type)); #if TARGET_MACHO darwin_set_default_type_attributes (type); #endif } /* Return a reference suitable for calling a function with the longcall attribute. */ rtx rs6000_longcall_ref (rtx call_ref) { const char *call_name; tree node; if (GET_CODE (call_ref) != SYMBOL_REF) return call_ref; /* System V adds '.' to the internal name, so skip them. */ call_name = XSTR (call_ref, 0); if (*call_name == '.') { while (*call_name == '.') call_name++; node = get_identifier (call_name); call_ref = gen_rtx_SYMBOL_REF (VOIDmode, IDENTIFIER_POINTER (node)); } return force_reg (Pmode, call_ref); } #ifndef TARGET_USE_MS_BITFIELD_LAYOUT #define TARGET_USE_MS_BITFIELD_LAYOUT 0 #endif /* Handle a "ms_struct" or "gcc_struct" attribute; arguments as in struct attribute_spec.handler. */ static tree rs6000_handle_struct_attribute (tree *node, tree name, tree args ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED, bool *no_add_attrs) { tree *type = NULL; if (DECL_P (*node)) { if (TREE_CODE (*node) == TYPE_DECL) type = &TREE_TYPE (*node); } else type = node; if (!(type && (TREE_CODE (*type) == RECORD_TYPE || TREE_CODE (*type) == UNION_TYPE))) { warning (OPT_Wattributes, "%qE attribute ignored", name); *no_add_attrs = true; } else if ((is_attribute_p ("ms_struct", name) && lookup_attribute ("gcc_struct", TYPE_ATTRIBUTES (*type))) || ((is_attribute_p ("gcc_struct", name) && lookup_attribute ("ms_struct", TYPE_ATTRIBUTES (*type))))) { warning (OPT_Wattributes, "%qE incompatible attribute ignored", name); *no_add_attrs = true; } return NULL_TREE; } static bool rs6000_ms_bitfield_layout_p (const_tree record_type) { return (TARGET_USE_MS_BITFIELD_LAYOUT && !lookup_attribute ("gcc_struct", TYPE_ATTRIBUTES (record_type))) || lookup_attribute ("ms_struct", TYPE_ATTRIBUTES (record_type)); } #ifdef USING_ELFOS_H /* A get_unnamed_section callback, used for switching to toc_section. */ static void rs6000_elf_output_toc_section_asm_op (const void *data ATTRIBUTE_UNUSED) { if (DEFAULT_ABI == ABI_AIX && TARGET_MINIMAL_TOC && !TARGET_RELOCATABLE) { if (!toc_initialized) { toc_initialized = 1; fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); (*targetm.asm_out.internal_label) (asm_out_file, "LCTOC", 0); fprintf (asm_out_file, "\t.tc "); ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],"); ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); fprintf (asm_out_file, "\n"); fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); fprintf (asm_out_file, " = .+32768\n"); } else fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); } else if (DEFAULT_ABI == ABI_AIX && !TARGET_RELOCATABLE) fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); else { fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); if (!toc_initialized) { ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); fprintf (asm_out_file, " = .+32768\n"); toc_initialized = 1; } } } /* Implement TARGET_ASM_INIT_SECTIONS. */ static void rs6000_elf_asm_init_sections (void) { toc_section = get_unnamed_section (0, rs6000_elf_output_toc_section_asm_op, NULL); sdata2_section = get_unnamed_section (SECTION_WRITE, output_section_asm_op, SDATA2_SECTION_ASM_OP); } /* Implement TARGET_SELECT_RTX_SECTION. */ static section * rs6000_elf_select_rtx_section (enum machine_mode mode, rtx x, unsigned HOST_WIDE_INT align) { if (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (x, mode)) return toc_section; else return default_elf_select_rtx_section (mode, x, align); } /* For a SYMBOL_REF, set generic flags and then perform some target-specific processing. When the AIX ABI is requested on a non-AIX system, replace the function name with the real name (with a leading .) rather than the function descriptor name. This saves a lot of overriding code to read the prefixes. */ static void rs6000_elf_encode_section_info (tree decl, rtx rtl, int first) { default_encode_section_info (decl, rtl, first); if (first && TREE_CODE (decl) == FUNCTION_DECL && !TARGET_AIX && DEFAULT_ABI == ABI_AIX) { rtx sym_ref = XEXP (rtl, 0); size_t len = strlen (XSTR (sym_ref, 0)); char *str = XALLOCAVEC (char, len + 2); str[0] = '.'; memcpy (str + 1, XSTR (sym_ref, 0), len + 1); XSTR (sym_ref, 0) = ggc_alloc_string (str, len + 1); } } static inline bool compare_section_name (const char *section, const char *templ) { int len; len = strlen (templ); return (strncmp (section, templ, len) == 0 && (section[len] == 0 || section[len] == '.')); } bool rs6000_elf_in_small_data_p (const_tree decl) { if (rs6000_sdata == SDATA_NONE) return false; /* We want to merge strings, so we never consider them small data. */ if (TREE_CODE (decl) == STRING_CST) return false; /* Functions are never in the small data area. */ if (TREE_CODE (decl) == FUNCTION_DECL) return false; if (TREE_CODE (decl) == VAR_DECL && DECL_SECTION_NAME (decl)) { const char *section = TREE_STRING_POINTER (DECL_SECTION_NAME (decl)); if (compare_section_name (section, ".sdata") || compare_section_name (section, ".sdata2") || compare_section_name (section, ".gnu.linkonce.s") || compare_section_name (section, ".sbss") || compare_section_name (section, ".sbss2") || compare_section_name (section, ".gnu.linkonce.sb") || strcmp (section, ".PPC.EMB.sdata0") == 0 || strcmp (section, ".PPC.EMB.sbss0") == 0) return true; } else { HOST_WIDE_INT size = int_size_in_bytes (TREE_TYPE (decl)); if (size > 0 && (unsigned HOST_WIDE_INT) size <= g_switch_value /* If it's not public, and we're not going to reference it there, there's no need to put it in the small data section. */ && (rs6000_sdata != SDATA_DATA || TREE_PUBLIC (decl))) return true; } return false; } #endif /* USING_ELFOS_H */ /* Implement TARGET_USE_BLOCKS_FOR_CONSTANT_P. */ static bool rs6000_use_blocks_for_constant_p (enum machine_mode mode, const_rtx x) { return !ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (x, mode); } /* Return a REG that occurs in ADDR with coefficient 1. ADDR can be effectively incremented by incrementing REG. r0 is special and we must not select it as an address register by this routine since our caller will try to increment the returned register via an "la" instruction. */ rtx find_addr_reg (rtx addr) { while (GET_CODE (addr) == PLUS) { if (GET_CODE (XEXP (addr, 0)) == REG && REGNO (XEXP (addr, 0)) != 0) addr = XEXP (addr, 0); else if (GET_CODE (XEXP (addr, 1)) == REG && REGNO (XEXP (addr, 1)) != 0) addr = XEXP (addr, 1); else if (CONSTANT_P (XEXP (addr, 0))) addr = XEXP (addr, 1); else if (CONSTANT_P (XEXP (addr, 1))) addr = XEXP (addr, 0); else gcc_unreachable (); } gcc_assert (GET_CODE (addr) == REG && REGNO (addr) != 0); return addr; } void rs6000_fatal_bad_address (rtx op) { fatal_insn ("bad address", op); } #if TARGET_MACHO static tree branch_island_list = 0; /* Remember to generate a branch island for far calls to the given function. */ static void add_compiler_branch_island (tree label_name, tree function_name, int line_number) { tree branch_island = build_tree_list (function_name, label_name); TREE_TYPE (branch_island) = build_int_cst (NULL_TREE, line_number); TREE_CHAIN (branch_island) = branch_island_list; branch_island_list = branch_island; } #define BRANCH_ISLAND_LABEL_NAME(BRANCH_ISLAND) TREE_VALUE (BRANCH_ISLAND) #define BRANCH_ISLAND_FUNCTION_NAME(BRANCH_ISLAND) TREE_PURPOSE (BRANCH_ISLAND) #define BRANCH_ISLAND_LINE_NUMBER(BRANCH_ISLAND) \ TREE_INT_CST_LOW (TREE_TYPE (BRANCH_ISLAND)) /* Generate far-jump branch islands for everything on the branch_island_list. Invoked immediately after the last instruction of the epilogue has been emitted; the branch-islands must be appended to, and contiguous with, the function body. Mach-O stubs are generated in machopic_output_stub(). */ static void macho_branch_islands (void) { char tmp_buf[512]; tree branch_island; for (branch_island = branch_island_list; branch_island; branch_island = TREE_CHAIN (branch_island)) { const char *label = IDENTIFIER_POINTER (BRANCH_ISLAND_LABEL_NAME (branch_island)); const char *name = IDENTIFIER_POINTER (BRANCH_ISLAND_FUNCTION_NAME (branch_island)); char name_buf[512]; /* Cheap copy of the details from the Darwin ASM_OUTPUT_LABELREF(). */ if (name[0] == '*' || name[0] == '&') strcpy (name_buf, name+1); else { name_buf[0] = '_'; strcpy (name_buf+1, name); } strcpy (tmp_buf, "\n"); strcat (tmp_buf, label); #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) dbxout_stabd (N_SLINE, BRANCH_ISLAND_LINE_NUMBER (branch_island)); #endif /* DBX_DEBUGGING_INFO || XCOFF_DEBUGGING_INFO */ if (flag_pic) { strcat (tmp_buf, ":\n\tmflr r0\n\tbcl 20,31,"); strcat (tmp_buf, label); strcat (tmp_buf, "_pic\n"); strcat (tmp_buf, label); strcat (tmp_buf, "_pic:\n\tmflr r11\n"); strcat (tmp_buf, "\taddis r11,r11,ha16("); strcat (tmp_buf, name_buf); strcat (tmp_buf, " - "); strcat (tmp_buf, label); strcat (tmp_buf, "_pic)\n"); strcat (tmp_buf, "\tmtlr r0\n"); strcat (tmp_buf, "\taddi r12,r11,lo16("); strcat (tmp_buf, name_buf); strcat (tmp_buf, " - "); strcat (tmp_buf, label); strcat (tmp_buf, "_pic)\n"); strcat (tmp_buf, "\tmtctr r12\n\tbctr\n"); } else { strcat (tmp_buf, ":\nlis r12,hi16("); strcat (tmp_buf, name_buf); strcat (tmp_buf, ")\n\tori r12,r12,lo16("); strcat (tmp_buf, name_buf); strcat (tmp_buf, ")\n\tmtctr r12\n\tbctr"); } output_asm_insn (tmp_buf, 0); #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) dbxout_stabd (N_SLINE, BRANCH_ISLAND_LINE_NUMBER (branch_island)); #endif /* DBX_DEBUGGING_INFO || XCOFF_DEBUGGING_INFO */ } branch_island_list = 0; } /* NO_PREVIOUS_DEF checks in the link list whether the function name is already there or not. */ static int no_previous_def (tree function_name) { tree branch_island; for (branch_island = branch_island_list; branch_island; branch_island = TREE_CHAIN (branch_island)) if (function_name == BRANCH_ISLAND_FUNCTION_NAME (branch_island)) return 0; return 1; } /* GET_PREV_LABEL gets the label name from the previous definition of the function. */ static tree get_prev_label (tree function_name) { tree branch_island; for (branch_island = branch_island_list; branch_island; branch_island = TREE_CHAIN (branch_island)) if (function_name == BRANCH_ISLAND_FUNCTION_NAME (branch_island)) return BRANCH_ISLAND_LABEL_NAME (branch_island); return 0; } #ifndef DARWIN_LINKER_GENERATES_ISLANDS #define DARWIN_LINKER_GENERATES_ISLANDS 0 #endif /* KEXTs still need branch islands. */ #define DARWIN_GENERATE_ISLANDS (!DARWIN_LINKER_GENERATES_ISLANDS \ || flag_mkernel || flag_apple_kext) /* INSN is either a function call or a millicode call. It may have an unconditional jump in its delay slot. CALL_DEST is the routine we are calling. */ char * output_call (rtx insn, rtx *operands, int dest_operand_number, int cookie_operand_number) { static char buf[256]; if (DARWIN_GENERATE_ISLANDS && GET_CODE (operands[dest_operand_number]) == SYMBOL_REF && (INTVAL (operands[cookie_operand_number]) & CALL_LONG)) { tree labelname; tree funname = get_identifier (XSTR (operands[dest_operand_number], 0)); if (no_previous_def (funname)) { rtx label_rtx = gen_label_rtx (); char *label_buf, temp_buf[256]; ASM_GENERATE_INTERNAL_LABEL (temp_buf, "L", CODE_LABEL_NUMBER (label_rtx)); label_buf = temp_buf[0] == '*' ? temp_buf + 1 : temp_buf; labelname = get_identifier (label_buf); add_compiler_branch_island (labelname, funname, insn_line (insn)); } else labelname = get_prev_label (funname); /* "jbsr foo, L42" is Mach-O for "Link as 'bl foo' if a 'bl' instruction will reach 'foo', otherwise link as 'bl L42'". "L42" should be a 'branch island', that will do a far jump to 'foo'. Branch islands are generated in macho_branch_islands(). */ sprintf (buf, "jbsr %%z%d,%.246s", dest_operand_number, IDENTIFIER_POINTER (labelname)); } else sprintf (buf, "bl %%z%d", dest_operand_number); return buf; } /* Generate PIC and indirect symbol stubs. */ void machopic_output_stub (FILE *file, const char *symb, const char *stub) { unsigned int length; char *symbol_name, *lazy_ptr_name; char *local_label_0; static int label = 0; /* Lose our funky encoding stuff so it doesn't contaminate the stub. */ symb = (*targetm.strip_name_encoding) (symb); length = strlen (symb); symbol_name = XALLOCAVEC (char, length + 32); GEN_SYMBOL_NAME_FOR_SYMBOL (symbol_name, symb, length); lazy_ptr_name = XALLOCAVEC (char, length + 32); GEN_LAZY_PTR_NAME_FOR_SYMBOL (lazy_ptr_name, symb, length); if (flag_pic == 2) switch_to_section (darwin_sections[machopic_picsymbol_stub1_section]); else switch_to_section (darwin_sections[machopic_symbol_stub1_section]); if (flag_pic == 2) { fprintf (file, "\t.align 5\n"); fprintf (file, "%s:\n", stub); fprintf (file, "\t.indirect_symbol %s\n", symbol_name); label++; local_label_0 = XALLOCAVEC (char, sizeof ("\"L00000000000$spb\"")); sprintf (local_label_0, "\"L%011d$spb\"", label); fprintf (file, "\tmflr r0\n"); fprintf (file, "\tbcl 20,31,%s\n", local_label_0); fprintf (file, "%s:\n\tmflr r11\n", local_label_0); fprintf (file, "\taddis r11,r11,ha16(%s-%s)\n", lazy_ptr_name, local_label_0); fprintf (file, "\tmtlr r0\n"); fprintf (file, "\t%s r12,lo16(%s-%s)(r11)\n", (TARGET_64BIT ? "ldu" : "lwzu"), lazy_ptr_name, local_label_0); fprintf (file, "\tmtctr r12\n"); fprintf (file, "\tbctr\n"); } else { fprintf (file, "\t.align 4\n"); fprintf (file, "%s:\n", stub); fprintf (file, "\t.indirect_symbol %s\n", symbol_name); fprintf (file, "\tlis r11,ha16(%s)\n", lazy_ptr_name); fprintf (file, "\t%s r12,lo16(%s)(r11)\n", (TARGET_64BIT ? "ldu" : "lwzu"), lazy_ptr_name); fprintf (file, "\tmtctr r12\n"); fprintf (file, "\tbctr\n"); } switch_to_section (darwin_sections[machopic_lazy_symbol_ptr_section]); fprintf (file, "%s:\n", lazy_ptr_name); fprintf (file, "\t.indirect_symbol %s\n", symbol_name); fprintf (file, "%sdyld_stub_binding_helper\n", (TARGET_64BIT ? DOUBLE_INT_ASM_OP : "\t.long\t")); } /* Legitimize PIC addresses. If the address is already position-independent, we return ORIG. Newly generated position-independent addresses go into a reg. This is REG if non zero, otherwise we allocate register(s) as necessary. */ #define SMALL_INT(X) ((UINTVAL (X) + 0x8000) < 0x10000) rtx rs6000_machopic_legitimize_pic_address (rtx orig, enum machine_mode mode, rtx reg) { rtx base, offset; if (reg == NULL && ! reload_in_progress && ! reload_completed) reg = gen_reg_rtx (Pmode); if (GET_CODE (orig) == CONST) { rtx reg_temp; if (GET_CODE (XEXP (orig, 0)) == PLUS && XEXP (XEXP (orig, 0), 0) == pic_offset_table_rtx) return orig; gcc_assert (GET_CODE (XEXP (orig, 0)) == PLUS); /* Use a different reg for the intermediate value, as it will be marked UNCHANGING. */ reg_temp = !can_create_pseudo_p () ? reg : gen_reg_rtx (Pmode); base = rs6000_machopic_legitimize_pic_address (XEXP (XEXP (orig, 0), 0), Pmode, reg_temp); offset = rs6000_machopic_legitimize_pic_address (XEXP (XEXP (orig, 0), 1), Pmode, reg); if (GET_CODE (offset) == CONST_INT) { if (SMALL_INT (offset)) return plus_constant (base, INTVAL (offset)); else if (! reload_in_progress && ! reload_completed) offset = force_reg (Pmode, offset); else { rtx mem = force_const_mem (Pmode, orig); return machopic_legitimize_pic_address (mem, Pmode, reg); } } return gen_rtx_PLUS (Pmode, base, offset); } /* Fall back on generic machopic code. */ return machopic_legitimize_pic_address (orig, mode, reg); } /* Output a .machine directive for the Darwin assembler, and call the generic start_file routine. */ static void rs6000_darwin_file_start (void) { static const struct { const char *arg; const char *name; int if_set; } mapping[] = { { "ppc64", "ppc64", MASK_64BIT }, { "970", "ppc970", MASK_PPC_GPOPT | MASK_MFCRF | MASK_POWERPC64 }, { "power4", "ppc970", 0 }, { "G5", "ppc970", 0 }, { "7450", "ppc7450", 0 }, { "7400", "ppc7400", MASK_ALTIVEC }, { "G4", "ppc7400", 0 }, { "750", "ppc750", 0 }, { "740", "ppc750", 0 }, { "G3", "ppc750", 0 }, { "604e", "ppc604e", 0 }, { "604", "ppc604", 0 }, { "603e", "ppc603", 0 }, { "603", "ppc603", 0 }, { "601", "ppc601", 0 }, { NULL, "ppc", 0 } }; const char *cpu_id = ""; size_t i; rs6000_file_start (); darwin_file_start (); /* Determine the argument to -mcpu=. Default to G3 if not specified. */ for (i = 0; i < ARRAY_SIZE (rs6000_select); i++) if (rs6000_select[i].set_arch_p && rs6000_select[i].string && rs6000_select[i].string[0] != '\0') cpu_id = rs6000_select[i].string; /* Look through the mapping array. Pick the first name that either matches the argument, has a bit set in IF_SET that is also set in the target flags, or has a NULL name. */ i = 0; while (mapping[i].arg != NULL && strcmp (mapping[i].arg, cpu_id) != 0 && (mapping[i].if_set & target_flags) == 0) i++; fprintf (asm_out_file, "\t.machine %s\n", mapping[i].name); } #endif /* TARGET_MACHO */ #if TARGET_ELF static int rs6000_elf_reloc_rw_mask (void) { if (flag_pic) return 3; else if (DEFAULT_ABI == ABI_AIX) return 2; else return 0; } /* Record an element in the table of global constructors. SYMBOL is a SYMBOL_REF of the function to be called; PRIORITY is a number between 0 and MAX_INIT_PRIORITY. This differs from default_named_section_asm_out_constructor in that we have special handling for -mrelocatable. */ static void rs6000_elf_asm_out_constructor (rtx symbol, int priority) { const char *section = ".ctors"; char buf[16]; if (priority != DEFAULT_INIT_PRIORITY) { sprintf (buf, ".ctors.%.5u", /* Invert the numbering so the linker puts us in the proper order; constructors are run from right to left, and the linker sorts in increasing order. */ MAX_INIT_PRIORITY - priority); section = buf; } switch_to_section (get_section (section, SECTION_WRITE, NULL)); assemble_align (POINTER_SIZE); if (TARGET_RELOCATABLE) { fputs ("\t.long (", asm_out_file); output_addr_const (asm_out_file, symbol); fputs (")@fixup\n", asm_out_file); } else assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1); } static void rs6000_elf_asm_out_destructor (rtx symbol, int priority) { const char *section = ".dtors"; char buf[16]; if (priority != DEFAULT_INIT_PRIORITY) { sprintf (buf, ".dtors.%.5u", /* Invert the numbering so the linker puts us in the proper order; constructors are run from right to left, and the linker sorts in increasing order. */ MAX_INIT_PRIORITY - priority); section = buf; } switch_to_section (get_section (section, SECTION_WRITE, NULL)); assemble_align (POINTER_SIZE); if (TARGET_RELOCATABLE) { fputs ("\t.long (", asm_out_file); output_addr_const (asm_out_file, symbol); fputs (")@fixup\n", asm_out_file); } else assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1); } void rs6000_elf_declare_function_name (FILE *file, const char *name, tree decl) { if (TARGET_64BIT) { fputs ("\t.section\t\".opd\",\"aw\"\n\t.align 3\n", file); ASM_OUTPUT_LABEL (file, name); fputs (DOUBLE_INT_ASM_OP, file); rs6000_output_function_entry (file, name); fputs (",.TOC.@tocbase,0\n\t.previous\n", file); if (DOT_SYMBOLS) { fputs ("\t.size\t", file); assemble_name (file, name); fputs (",24\n\t.type\t.", file); assemble_name (file, name); fputs (",@function\n", file); if (TREE_PUBLIC (decl) && ! DECL_WEAK (decl)) { fputs ("\t.globl\t.", file); assemble_name (file, name); putc ('\n', file); } } else ASM_OUTPUT_TYPE_DIRECTIVE (file, name, "function"); ASM_DECLARE_RESULT (file, DECL_RESULT (decl)); rs6000_output_function_entry (file, name); fputs (":\n", file); return; } if (TARGET_RELOCATABLE && !TARGET_SECURE_PLT && (get_pool_size () != 0 || crtl->profile) && uses_TOC ()) { char buf[256]; (*targetm.asm_out.internal_label) (file, "LCL", rs6000_pic_labelno); ASM_GENERATE_INTERNAL_LABEL (buf, "LCTOC", 1); fprintf (file, "\t.long "); assemble_name (file, buf); putc ('-', file); ASM_GENERATE_INTERNAL_LABEL (buf, "LCF", rs6000_pic_labelno); assemble_name (file, buf); putc ('\n', file); } ASM_OUTPUT_TYPE_DIRECTIVE (file, name, "function"); ASM_DECLARE_RESULT (file, DECL_RESULT (decl)); if (DEFAULT_ABI == ABI_AIX) { const char *desc_name, *orig_name; orig_name = (*targetm.strip_name_encoding) (name); desc_name = orig_name; while (*desc_name == '.') desc_name++; if (TREE_PUBLIC (decl)) fprintf (file, "\t.globl %s\n", desc_name); fprintf (file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); fprintf (file, "%s:\n", desc_name); fprintf (file, "\t.long %s\n", orig_name); fputs ("\t.long _GLOBAL_OFFSET_TABLE_\n", file); if (DEFAULT_ABI == ABI_AIX) fputs ("\t.long 0\n", file); fprintf (file, "\t.previous\n"); } ASM_OUTPUT_LABEL (file, name); } static void rs6000_elf_end_indicate_exec_stack (void) { if (TARGET_32BIT) file_end_indicate_exec_stack (); } #endif #if TARGET_XCOFF static void rs6000_xcoff_asm_output_anchor (rtx symbol) { char buffer[100]; sprintf (buffer, "$ + " HOST_WIDE_INT_PRINT_DEC, SYMBOL_REF_BLOCK_OFFSET (symbol)); ASM_OUTPUT_DEF (asm_out_file, XSTR (symbol, 0), buffer); } static void rs6000_xcoff_asm_globalize_label (FILE *stream, const char *name) { fputs (GLOBAL_ASM_OP, stream); RS6000_OUTPUT_BASENAME (stream, name); putc ('\n', stream); } /* A get_unnamed_decl callback, used for read-only sections. PTR points to the section string variable. */ static void rs6000_xcoff_output_readonly_section_asm_op (const void *directive) { fprintf (asm_out_file, "\t.csect %s[RO],%s\n", *(const char *const *) directive, XCOFF_CSECT_DEFAULT_ALIGNMENT_STR); } /* Likewise for read-write sections. */ static void rs6000_xcoff_output_readwrite_section_asm_op (const void *directive) { fprintf (asm_out_file, "\t.csect %s[RW],%s\n", *(const char *const *) directive, XCOFF_CSECT_DEFAULT_ALIGNMENT_STR); } /* A get_unnamed_section callback, used for switching to toc_section. */ static void rs6000_xcoff_output_toc_section_asm_op (const void *data ATTRIBUTE_UNUSED) { if (TARGET_MINIMAL_TOC) { /* toc_section is always selected at least once from rs6000_xcoff_file_start, so this is guaranteed to always be defined once and only once in each file. */ if (!toc_initialized) { fputs ("\t.toc\nLCTOC..1:\n", asm_out_file); fputs ("\t.tc toc_table[TC],toc_table[RW]\n", asm_out_file); toc_initialized = 1; } fprintf (asm_out_file, "\t.csect toc_table[RW]%s\n", (TARGET_32BIT ? "" : ",3")); } else fputs ("\t.toc\n", asm_out_file); } /* Implement TARGET_ASM_INIT_SECTIONS. */ static void rs6000_xcoff_asm_init_sections (void) { read_only_data_section = get_unnamed_section (0, rs6000_xcoff_output_readonly_section_asm_op, &xcoff_read_only_section_name); private_data_section = get_unnamed_section (SECTION_WRITE, rs6000_xcoff_output_readwrite_section_asm_op, &xcoff_private_data_section_name); read_only_private_data_section = get_unnamed_section (0, rs6000_xcoff_output_readonly_section_asm_op, &xcoff_private_data_section_name); toc_section = get_unnamed_section (0, rs6000_xcoff_output_toc_section_asm_op, NULL); readonly_data_section = read_only_data_section; exception_section = data_section; } static int rs6000_xcoff_reloc_rw_mask (void) { return 3; } static void rs6000_xcoff_asm_named_section (const char *name, unsigned int flags, tree decl ATTRIBUTE_UNUSED) { int smclass; static const char * const suffix[3] = { "PR", "RO", "RW" }; if (flags & SECTION_CODE) smclass = 0; else if (flags & SECTION_WRITE) smclass = 2; else smclass = 1; fprintf (asm_out_file, "\t.csect %s%s[%s],%u\n", (flags & SECTION_CODE) ? "." : "", name, suffix[smclass], flags & SECTION_ENTSIZE); } static section * rs6000_xcoff_select_section (tree decl, int reloc, unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED) { if (decl_readonly_section (decl, reloc)) { if (TREE_PUBLIC (decl)) return read_only_data_section; else return read_only_private_data_section; } else { if (TREE_PUBLIC (decl)) return data_section; else return private_data_section; } } static void rs6000_xcoff_unique_section (tree decl, int reloc ATTRIBUTE_UNUSED) { const char *name; /* Use select_section for private and uninitialized data. */ if (!TREE_PUBLIC (decl) || DECL_COMMON (decl) || DECL_INITIAL (decl) == NULL_TREE || DECL_INITIAL (decl) == error_mark_node || (flag_zero_initialized_in_bss && initializer_zerop (DECL_INITIAL (decl)))) return; name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)); name = (*targetm.strip_name_encoding) (name); DECL_SECTION_NAME (decl) = build_string (strlen (name), name); } /* Select section for constant in constant pool. On RS/6000, all constants are in the private read-only data area. However, if this is being placed in the TOC it must be output as a toc entry. */ static section * rs6000_xcoff_select_rtx_section (enum machine_mode mode, rtx x, unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED) { if (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (x, mode)) return toc_section; else return read_only_private_data_section; } /* Remove any trailing [DS] or the like from the symbol name. */ static const char * rs6000_xcoff_strip_name_encoding (const char *name) { size_t len; if (*name == '*') name++; len = strlen (name); if (name[len - 1] == ']') return ggc_alloc_string (name, len - 4); else return name; } /* Section attributes. AIX is always PIC. */ static unsigned int rs6000_xcoff_section_type_flags (tree decl, const char *name, int reloc) { unsigned int align; unsigned int flags = default_section_type_flags (decl, name, reloc); /* Align to at least UNIT size. */ if (flags & SECTION_CODE) align = MIN_UNITS_PER_WORD; else /* Increase alignment of large objects if not already stricter. */ align = MAX ((DECL_ALIGN (decl) / BITS_PER_UNIT), int_size_in_bytes (TREE_TYPE (decl)) > MIN_UNITS_PER_WORD ? UNITS_PER_FP_WORD : MIN_UNITS_PER_WORD); return flags | (exact_log2 (align) & SECTION_ENTSIZE); } /* Output at beginning of assembler file. Initialize the section names for the RS/6000 at this point. Specify filename, including full path, to assembler. We want to go into the TOC section so at least one .toc will be emitted. Also, in order to output proper .bs/.es pairs, we need at least one static [RW] section emitted. Finally, declare mcount when profiling to make the assembler happy. */ static void rs6000_xcoff_file_start (void) { rs6000_gen_section_name (&xcoff_bss_section_name, main_input_filename, ".bss_"); rs6000_gen_section_name (&xcoff_private_data_section_name, main_input_filename, ".rw_"); rs6000_gen_section_name (&xcoff_read_only_section_name, main_input_filename, ".ro_"); fputs ("\t.file\t", asm_out_file); output_quoted_string (asm_out_file, main_input_filename); fputc ('\n', asm_out_file); if (write_symbols != NO_DEBUG) switch_to_section (private_data_section); switch_to_section (text_section); if (profile_flag) fprintf (asm_out_file, "\t.extern %s\n", RS6000_MCOUNT); rs6000_file_start (); } /* Output at end of assembler file. On the RS/6000, referencing data should automatically pull in text. */ static void rs6000_xcoff_file_end (void) { switch_to_section (text_section); fputs ("_section_.text:\n", asm_out_file); switch_to_section (data_section); fputs (TARGET_32BIT ? "\t.long _section_.text\n" : "\t.llong _section_.text\n", asm_out_file); } #endif /* TARGET_XCOFF */ /* Compute a (partial) cost for rtx X. Return true if the complete cost has been computed, and false if subexpressions should be scanned. In either case, *TOTAL contains the cost result. */ static bool rs6000_rtx_costs (rtx x, int code, int outer_code, int *total, bool speed) { enum machine_mode mode = GET_MODE (x); switch (code) { /* On the RS/6000, if it is valid in the insn, it is free. */ case CONST_INT: if (((outer_code == SET || outer_code == PLUS || outer_code == MINUS) && (satisfies_constraint_I (x) || satisfies_constraint_L (x))) || (outer_code == AND && (satisfies_constraint_K (x) || (mode == SImode ? satisfies_constraint_L (x) : satisfies_constraint_J (x)) || mask_operand (x, mode) || (mode == DImode && mask64_operand (x, DImode)))) || ((outer_code == IOR || outer_code == XOR) && (satisfies_constraint_K (x) || (mode == SImode ? satisfies_constraint_L (x) : satisfies_constraint_J (x)))) || outer_code == ASHIFT || outer_code == ASHIFTRT || outer_code == LSHIFTRT || outer_code == ROTATE || outer_code == ROTATERT || outer_code == ZERO_EXTRACT || (outer_code == MULT && satisfies_constraint_I (x)) || ((outer_code == DIV || outer_code == UDIV || outer_code == MOD || outer_code == UMOD) && exact_log2 (INTVAL (x)) >= 0) || (outer_code == COMPARE && (satisfies_constraint_I (x) || satisfies_constraint_K (x))) || (outer_code == EQ && (satisfies_constraint_I (x) || satisfies_constraint_K (x) || (mode == SImode ? satisfies_constraint_L (x) : satisfies_constraint_J (x)))) || (outer_code == GTU && satisfies_constraint_I (x)) || (outer_code == LTU && satisfies_constraint_P (x))) { *total = 0; return true; } else if ((outer_code == PLUS && reg_or_add_cint_operand (x, VOIDmode)) || (outer_code == MINUS && reg_or_sub_cint_operand (x, VOIDmode)) || ((outer_code == SET || outer_code == IOR || outer_code == XOR) && (INTVAL (x) & ~ (unsigned HOST_WIDE_INT) 0xffffffff) == 0)) { *total = COSTS_N_INSNS (1); return true; } /* FALLTHRU */ case CONST_DOUBLE: if (mode == DImode && code == CONST_DOUBLE) { if ((outer_code == IOR || outer_code == XOR) && CONST_DOUBLE_HIGH (x) == 0 && (CONST_DOUBLE_LOW (x) & ~ (unsigned HOST_WIDE_INT) 0xffff) == 0) { *total = 0; return true; } else if ((outer_code == AND && and64_2_operand (x, DImode)) || ((outer_code == SET || outer_code == IOR || outer_code == XOR) && CONST_DOUBLE_HIGH (x) == 0)) { *total = COSTS_N_INSNS (1); return true; } } /* FALLTHRU */ case CONST: case HIGH: case SYMBOL_REF: case MEM: /* When optimizing for size, MEM should be slightly more expensive than generating address, e.g., (plus (reg) (const)). L1 cache latency is about two instructions. */ *total = !speed ? COSTS_N_INSNS (1) + 1 : COSTS_N_INSNS (2); return true; case LABEL_REF: *total = 0; return true; case PLUS: if (mode == DFmode) { if (GET_CODE (XEXP (x, 0)) == MULT) { /* FNMA accounted in outer NEG. */ if (outer_code == NEG) *total = rs6000_cost->dmul - rs6000_cost->fp; else *total = rs6000_cost->dmul; } else *total = rs6000_cost->fp; } else if (mode == SFmode) { /* FNMA accounted in outer NEG. */ if (outer_code == NEG && GET_CODE (XEXP (x, 0)) == MULT) *total = 0; else *total = rs6000_cost->fp; } else *total = COSTS_N_INSNS (1); return false; case MINUS: if (mode == DFmode) { if (GET_CODE (XEXP (x, 0)) == MULT || GET_CODE (XEXP (x, 1)) == MULT) { /* FNMA accounted in outer NEG. */ if (outer_code == NEG) *total = rs6000_cost->dmul - rs6000_cost->fp; else *total = rs6000_cost->dmul; } else *total = rs6000_cost->fp; } else if (mode == SFmode) { /* FNMA accounted in outer NEG. */ if (outer_code == NEG && GET_CODE (XEXP (x, 0)) == MULT) *total = 0; else *total = rs6000_cost->fp; } else *total = COSTS_N_INSNS (1); return false; case MULT: if (GET_CODE (XEXP (x, 1)) == CONST_INT && satisfies_constraint_I (XEXP (x, 1))) { if (INTVAL (XEXP (x, 1)) >= -256 && INTVAL (XEXP (x, 1)) <= 255) *total = rs6000_cost->mulsi_const9; else *total = rs6000_cost->mulsi_const; } /* FMA accounted in outer PLUS/MINUS. */ else if ((mode == DFmode || mode == SFmode) && (outer_code == PLUS || outer_code == MINUS)) *total = 0; else if (mode == DFmode) *total = rs6000_cost->dmul; else if (mode == SFmode) *total = rs6000_cost->fp; else if (mode == DImode) *total = rs6000_cost->muldi; else *total = rs6000_cost->mulsi; return false; case DIV: case MOD: if (FLOAT_MODE_P (mode)) { *total = mode == DFmode ? rs6000_cost->ddiv : rs6000_cost->sdiv; return false; } /* FALLTHRU */ case UDIV: case UMOD: if (GET_CODE (XEXP (x, 1)) == CONST_INT && exact_log2 (INTVAL (XEXP (x, 1))) >= 0) { if (code == DIV || code == MOD) /* Shift, addze */ *total = COSTS_N_INSNS (2); else /* Shift */ *total = COSTS_N_INSNS (1); } else { if (GET_MODE (XEXP (x, 1)) == DImode) *total = rs6000_cost->divdi; else *total = rs6000_cost->divsi; } /* Add in shift and subtract for MOD. */ if (code == MOD || code == UMOD) *total += COSTS_N_INSNS (2); return false; case CTZ: case FFS: *total = COSTS_N_INSNS (4); return false; case POPCOUNT: *total = COSTS_N_INSNS (6); return false; case NOT: if (outer_code == AND || outer_code == IOR || outer_code == XOR) { *total = 0; return false; } /* FALLTHRU */ case AND: case CLZ: case IOR: case XOR: case ZERO_EXTRACT: *total = COSTS_N_INSNS (1); return false; case ASHIFT: case ASHIFTRT: case LSHIFTRT: case ROTATE: case ROTATERT: /* Handle mul_highpart. */ if (outer_code == TRUNCATE && GET_CODE (XEXP (x, 0)) == MULT) { if (mode == DImode) *total = rs6000_cost->muldi; else *total = rs6000_cost->mulsi; return true; } else if (outer_code == AND) *total = 0; else *total = COSTS_N_INSNS (1); return false; case SIGN_EXTEND: case ZERO_EXTEND: if (GET_CODE (XEXP (x, 0)) == MEM) *total = 0; else *total = COSTS_N_INSNS (1); return false; case COMPARE: case NEG: case ABS: if (!FLOAT_MODE_P (mode)) { *total = COSTS_N_INSNS (1); return false; } /* FALLTHRU */ case FLOAT: case UNSIGNED_FLOAT: case FIX: case UNSIGNED_FIX: case FLOAT_TRUNCATE: *total = rs6000_cost->fp; return false; case FLOAT_EXTEND: if (mode == DFmode) *total = 0; else *total = rs6000_cost->fp; return false; case UNSPEC: switch (XINT (x, 1)) { case UNSPEC_FRSP: *total = rs6000_cost->fp; return true; default: break; } break; case CALL: case IF_THEN_ELSE: if (!speed) { *total = COSTS_N_INSNS (1); return true; } else if (FLOAT_MODE_P (mode) && TARGET_PPC_GFXOPT && TARGET_HARD_FLOAT && TARGET_FPRS) { *total = rs6000_cost->fp; return false; } break; case EQ: case GTU: case LTU: /* Carry bit requires mode == Pmode. NEG or PLUS already counted so only add one. */ if (mode == Pmode && (outer_code == NEG || outer_code == PLUS)) { *total = COSTS_N_INSNS (1); return true; } if (outer_code == SET) { if (XEXP (x, 1) == const0_rtx) { if (TARGET_ISEL && !TARGET_MFCRF) *total = COSTS_N_INSNS (8); else *total = COSTS_N_INSNS (2); return true; } else if (mode == Pmode) { *total = COSTS_N_INSNS (3); return false; } } /* FALLTHRU */ case GT: case LT: case UNORDERED: if (outer_code == SET && (XEXP (x, 1) == const0_rtx)) { if (TARGET_ISEL && !TARGET_MFCRF) *total = COSTS_N_INSNS (8); else *total = COSTS_N_INSNS (2); return true; } /* CC COMPARE. */ if (outer_code == COMPARE) { *total = 0; return true; } break; default: break; } return false; } /* Debug form of r6000_rtx_costs that is selected if -mdebug=cost. */ static bool rs6000_debug_rtx_costs (rtx x, int code, int outer_code, int *total, bool speed) { bool ret = rs6000_rtx_costs (x, code, outer_code, total, speed); fprintf (stderr, "\nrs6000_rtx_costs, return = %s, code = %s, outer_code = %s, " "total = %d, speed = %s, x:\n", ret ? "complete" : "scan inner", GET_RTX_NAME (code), GET_RTX_NAME (outer_code), *total, speed ? "true" : "false"); debug_rtx (x); return ret; } /* Debug form of ADDRESS_COST that is selected if -mdebug=cost. */ static int rs6000_debug_address_cost (rtx x, bool speed) { int ret = TARGET_ADDRESS_COST (x, speed); fprintf (stderr, "\nrs6000_address_cost, return = %d, speed = %s, x:\n", ret, speed ? "true" : "false"); debug_rtx (x); return ret; } /* A C expression returning the cost of moving data from a register of class CLASS1 to one of CLASS2. */ int rs6000_register_move_cost (enum machine_mode mode, enum reg_class from, enum reg_class to) { int ret; /* Moves from/to GENERAL_REGS. */ if (reg_classes_intersect_p (to, GENERAL_REGS) || reg_classes_intersect_p (from, GENERAL_REGS)) { if (! reg_classes_intersect_p (to, GENERAL_REGS)) from = to; if (from == FLOAT_REGS || from == ALTIVEC_REGS || from == VSX_REGS) ret = (rs6000_memory_move_cost (mode, from, 0) + rs6000_memory_move_cost (mode, GENERAL_REGS, 0)); /* It's more expensive to move CR_REGS than CR0_REGS because of the shift. */ else if (from == CR_REGS) ret = 4; /* Power6 has slower LR/CTR moves so make them more expensive than memory in order to bias spills to memory .*/ else if (rs6000_cpu == PROCESSOR_POWER6 && reg_classes_intersect_p (from, LINK_OR_CTR_REGS)) ret = 6 * hard_regno_nregs[0][mode]; else /* A move will cost one instruction per GPR moved. */ ret = 2 * hard_regno_nregs[0][mode]; } /* If we have VSX, we can easily move between FPR or Altivec registers. */ else if (VECTOR_UNIT_VSX_P (mode) && reg_classes_intersect_p (to, VSX_REGS) && reg_classes_intersect_p (from, VSX_REGS)) ret = 2 * hard_regno_nregs[32][mode]; /* Moving between two similar registers is just one instruction. */ else if (reg_classes_intersect_p (to, from)) ret = (mode == TFmode || mode == TDmode) ? 4 : 2; /* Everything else has to go through GENERAL_REGS. */ else ret = (rs6000_register_move_cost (mode, GENERAL_REGS, to) + rs6000_register_move_cost (mode, from, GENERAL_REGS)); if (TARGET_DEBUG_COST) fprintf (stderr, "rs6000_register_move_cost:, ret=%d, mode=%s, from=%s, to=%s\n", ret, GET_MODE_NAME (mode), reg_class_names[from], reg_class_names[to]); return ret; } /* A C expressions returning the cost of moving data of MODE from a register to or from memory. */ int rs6000_memory_move_cost (enum machine_mode mode, enum reg_class rclass, int in ATTRIBUTE_UNUSED) { int ret; if (reg_classes_intersect_p (rclass, GENERAL_REGS)) ret = 4 * hard_regno_nregs[0][mode]; else if (reg_classes_intersect_p (rclass, FLOAT_REGS)) ret = 4 * hard_regno_nregs[32][mode]; else if (reg_classes_intersect_p (rclass, ALTIVEC_REGS)) ret = 4 * hard_regno_nregs[FIRST_ALTIVEC_REGNO][mode]; else ret = 4 + rs6000_register_move_cost (mode, rclass, GENERAL_REGS); if (TARGET_DEBUG_COST) fprintf (stderr, "rs6000_memory_move_cost: ret=%d, mode=%s, rclass=%s, in=%d\n", ret, GET_MODE_NAME (mode), reg_class_names[rclass], in); return ret; } /* Returns a code for a target-specific builtin that implements reciprocal of the function, or NULL_TREE if not available. */ static tree rs6000_builtin_reciprocal (unsigned int fn, bool md_fn, bool sqrt ATTRIBUTE_UNUSED) { if (! (TARGET_RECIP && TARGET_PPC_GFXOPT && !optimize_size && flag_finite_math_only && !flag_trapping_math && flag_unsafe_math_optimizations)) return NULL_TREE; if (md_fn) return NULL_TREE; else switch (fn) { case BUILT_IN_SQRTF: return rs6000_builtin_decls[RS6000_BUILTIN_RSQRTF]; default: return NULL_TREE; } } /* Newton-Raphson approximation of single-precision floating point divide n/d. Assumes no trapping math and finite arguments. */ void rs6000_emit_swdivsf (rtx dst, rtx n, rtx d) { rtx x0, e0, e1, y1, u0, v0, one; x0 = gen_reg_rtx (SFmode); e0 = gen_reg_rtx (SFmode); e1 = gen_reg_rtx (SFmode); y1 = gen_reg_rtx (SFmode); u0 = gen_reg_rtx (SFmode); v0 = gen_reg_rtx (SFmode); one = force_reg (SFmode, CONST_DOUBLE_FROM_REAL_VALUE (dconst1, SFmode)); /* x0 = 1./d estimate */ emit_insn (gen_rtx_SET (VOIDmode, x0, gen_rtx_UNSPEC (SFmode, gen_rtvec (1, d), UNSPEC_FRES))); /* e0 = 1. - d * x0 */ emit_insn (gen_rtx_SET (VOIDmode, e0, gen_rtx_MINUS (SFmode, one, gen_rtx_MULT (SFmode, d, x0)))); /* e1 = e0 + e0 * e0 */ emit_insn (gen_rtx_SET (VOIDmode, e1, gen_rtx_PLUS (SFmode, gen_rtx_MULT (SFmode, e0, e0), e0))); /* y1 = x0 + e1 * x0 */ emit_insn (gen_rtx_SET (VOIDmode, y1, gen_rtx_PLUS (SFmode, gen_rtx_MULT (SFmode, e1, x0), x0))); /* u0 = n * y1 */ emit_insn (gen_rtx_SET (VOIDmode, u0, gen_rtx_MULT (SFmode, n, y1))); /* v0 = n - d * u0 */ emit_insn (gen_rtx_SET (VOIDmode, v0, gen_rtx_MINUS (SFmode, n, gen_rtx_MULT (SFmode, d, u0)))); /* dst = u0 + v0 * y1 */ emit_insn (gen_rtx_SET (VOIDmode, dst, gen_rtx_PLUS (SFmode, gen_rtx_MULT (SFmode, v0, y1), u0))); } /* Newton-Raphson approximation of double-precision floating point divide n/d. Assumes no trapping math and finite arguments. */ void rs6000_emit_swdivdf (rtx dst, rtx n, rtx d) { rtx x0, e0, e1, e2, y1, y2, y3, u0, v0, one; x0 = gen_reg_rtx (DFmode); e0 = gen_reg_rtx (DFmode); e1 = gen_reg_rtx (DFmode); e2 = gen_reg_rtx (DFmode); y1 = gen_reg_rtx (DFmode); y2 = gen_reg_rtx (DFmode); y3 = gen_reg_rtx (DFmode); u0 = gen_reg_rtx (DFmode); v0 = gen_reg_rtx (DFmode); one = force_reg (DFmode, CONST_DOUBLE_FROM_REAL_VALUE (dconst1, DFmode)); /* x0 = 1./d estimate */ emit_insn (gen_rtx_SET (VOIDmode, x0, gen_rtx_UNSPEC (DFmode, gen_rtvec (1, d), UNSPEC_FRES))); /* e0 = 1. - d * x0 */ emit_insn (gen_rtx_SET (VOIDmode, e0, gen_rtx_MINUS (DFmode, one, gen_rtx_MULT (SFmode, d, x0)))); /* y1 = x0 + e0 * x0 */ emit_insn (gen_rtx_SET (VOIDmode, y1, gen_rtx_PLUS (DFmode, gen_rtx_MULT (DFmode, e0, x0), x0))); /* e1 = e0 * e0 */ emit_insn (gen_rtx_SET (VOIDmode, e1, gen_rtx_MULT (DFmode, e0, e0))); /* y2 = y1 + e1 * y1 */ emit_insn (gen_rtx_SET (VOIDmode, y2, gen_rtx_PLUS (DFmode, gen_rtx_MULT (DFmode, e1, y1), y1))); /* e2 = e1 * e1 */ emit_insn (gen_rtx_SET (VOIDmode, e2, gen_rtx_MULT (DFmode, e1, e1))); /* y3 = y2 + e2 * y2 */ emit_insn (gen_rtx_SET (VOIDmode, y3, gen_rtx_PLUS (DFmode, gen_rtx_MULT (DFmode, e2, y2), y2))); /* u0 = n * y3 */ emit_insn (gen_rtx_SET (VOIDmode, u0, gen_rtx_MULT (DFmode, n, y3))); /* v0 = n - d * u0 */ emit_insn (gen_rtx_SET (VOIDmode, v0, gen_rtx_MINUS (DFmode, n, gen_rtx_MULT (DFmode, d, u0)))); /* dst = u0 + v0 * y3 */ emit_insn (gen_rtx_SET (VOIDmode, dst, gen_rtx_PLUS (DFmode, gen_rtx_MULT (DFmode, v0, y3), u0))); } /* Newton-Raphson approximation of single-precision floating point rsqrt. Assumes no trapping math and finite arguments. */ void rs6000_emit_swrsqrtsf (rtx dst, rtx src) { rtx x0, x1, x2, y1, u0, u1, u2, v0, v1, v2, t0, half, one, halfthree, c1, cond, label; x0 = gen_reg_rtx (SFmode); x1 = gen_reg_rtx (SFmode); x2 = gen_reg_rtx (SFmode); y1 = gen_reg_rtx (SFmode); u0 = gen_reg_rtx (SFmode); u1 = gen_reg_rtx (SFmode); u2 = gen_reg_rtx (SFmode); v0 = gen_reg_rtx (SFmode); v1 = gen_reg_rtx (SFmode); v2 = gen_reg_rtx (SFmode); t0 = gen_reg_rtx (SFmode); halfthree = gen_reg_rtx (SFmode); cond = gen_rtx_REG (CCFPmode, CR1_REGNO); label = gen_rtx_LABEL_REF (VOIDmode, gen_label_rtx ()); /* check 0.0, 1.0, NaN, Inf by testing src * src = src */ emit_insn (gen_rtx_SET (VOIDmode, t0, gen_rtx_MULT (SFmode, src, src))); emit_insn (gen_rtx_SET (VOIDmode, cond, gen_rtx_COMPARE (CCFPmode, t0, src))); c1 = gen_rtx_EQ (VOIDmode, cond, const0_rtx); emit_unlikely_jump (c1, label); half = force_reg (SFmode, CONST_DOUBLE_FROM_REAL_VALUE (dconsthalf, SFmode)); one = force_reg (SFmode, CONST_DOUBLE_FROM_REAL_VALUE (dconst1, SFmode)); /* halfthree = 1.5 = 1.0 + 0.5 */ emit_insn (gen_rtx_SET (VOIDmode, halfthree, gen_rtx_PLUS (SFmode, one, half))); /* x0 = rsqrt estimate */ emit_insn (gen_rtx_SET (VOIDmode, x0, gen_rtx_UNSPEC (SFmode, gen_rtvec (1, src), UNSPEC_RSQRT))); /* y1 = 0.5 * src = 1.5 * src - src -> fewer constants */ emit_insn (gen_rtx_SET (VOIDmode, y1, gen_rtx_MINUS (SFmode, gen_rtx_MULT (SFmode, src, halfthree), src))); /* x1 = x0 * (1.5 - y1 * (x0 * x0)) */ emit_insn (gen_rtx_SET (VOIDmode, u0, gen_rtx_MULT (SFmode, x0, x0))); emit_insn (gen_rtx_SET (VOIDmode, v0, gen_rtx_MINUS (SFmode, halfthree, gen_rtx_MULT (SFmode, y1, u0)))); emit_insn (gen_rtx_SET (VOIDmode, x1, gen_rtx_MULT (SFmode, x0, v0))); /* x2 = x1 * (1.5 - y1 * (x1 * x1)) */ emit_insn (gen_rtx_SET (VOIDmode, u1, gen_rtx_MULT (SFmode, x1, x1))); emit_insn (gen_rtx_SET (VOIDmode, v1, gen_rtx_MINUS (SFmode, halfthree, gen_rtx_MULT (SFmode, y1, u1)))); emit_insn (gen_rtx_SET (VOIDmode, x2, gen_rtx_MULT (SFmode, x1, v1))); /* dst = x2 * (1.5 - y1 * (x2 * x2)) */ emit_insn (gen_rtx_SET (VOIDmode, u2, gen_rtx_MULT (SFmode, x2, x2))); emit_insn (gen_rtx_SET (VOIDmode, v2, gen_rtx_MINUS (SFmode, halfthree, gen_rtx_MULT (SFmode, y1, u2)))); emit_insn (gen_rtx_SET (VOIDmode, dst, gen_rtx_MULT (SFmode, x2, v2))); emit_label (XEXP (label, 0)); } /* Emit popcount intrinsic on TARGET_POPCNTB (Power5) and TARGET_POPCNTD (Power7) targets. DST is the target, and SRC is the argument operand. */ void rs6000_emit_popcount (rtx dst, rtx src) { enum machine_mode mode = GET_MODE (dst); rtx tmp1, tmp2; /* Use the PPC ISA 2.06 popcnt{w,d} instruction if we can. */ if (TARGET_POPCNTD) { if (mode == SImode) emit_insn (gen_popcntwsi2 (dst, src)); else emit_insn (gen_popcntddi2 (dst, src)); return; } tmp1 = gen_reg_rtx (mode); if (mode == SImode) { emit_insn (gen_popcntbsi2 (tmp1, src)); tmp2 = expand_mult (SImode, tmp1, GEN_INT (0x01010101), NULL_RTX, 0); tmp2 = force_reg (SImode, tmp2); emit_insn (gen_lshrsi3 (dst, tmp2, GEN_INT (24))); } else { emit_insn (gen_popcntbdi2 (tmp1, src)); tmp2 = expand_mult (DImode, tmp1, GEN_INT ((HOST_WIDE_INT) 0x01010101 << 32 | 0x01010101), NULL_RTX, 0); tmp2 = force_reg (DImode, tmp2); emit_insn (gen_lshrdi3 (dst, tmp2, GEN_INT (56))); } } /* Emit parity intrinsic on TARGET_POPCNTB targets. DST is the target, and SRC is the argument operand. */ void rs6000_emit_parity (rtx dst, rtx src) { enum machine_mode mode = GET_MODE (dst); rtx tmp; tmp = gen_reg_rtx (mode); if (mode == SImode) { /* Is mult+shift >= shift+xor+shift+xor? */ if (rs6000_cost->mulsi_const >= COSTS_N_INSNS (3)) { rtx tmp1, tmp2, tmp3, tmp4; tmp1 = gen_reg_rtx (SImode); emit_insn (gen_popcntbsi2 (tmp1, src)); tmp2 = gen_reg_rtx (SImode); emit_insn (gen_lshrsi3 (tmp2, tmp1, GEN_INT (16))); tmp3 = gen_reg_rtx (SImode); emit_insn (gen_xorsi3 (tmp3, tmp1, tmp2)); tmp4 = gen_reg_rtx (SImode); emit_insn (gen_lshrsi3 (tmp4, tmp3, GEN_INT (8))); emit_insn (gen_xorsi3 (tmp, tmp3, tmp4)); } else rs6000_emit_popcount (tmp, src); emit_insn (gen_andsi3 (dst, tmp, const1_rtx)); } else { /* Is mult+shift >= shift+xor+shift+xor+shift+xor? */ if (rs6000_cost->muldi >= COSTS_N_INSNS (5)) { rtx tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; tmp1 = gen_reg_rtx (DImode); emit_insn (gen_popcntbdi2 (tmp1, src)); tmp2 = gen_reg_rtx (DImode); emit_insn (gen_lshrdi3 (tmp2, tmp1, GEN_INT (32))); tmp3 = gen_reg_rtx (DImode); emit_insn (gen_xordi3 (tmp3, tmp1, tmp2)); tmp4 = gen_reg_rtx (DImode); emit_insn (gen_lshrdi3 (tmp4, tmp3, GEN_INT (16))); tmp5 = gen_reg_rtx (DImode); emit_insn (gen_xordi3 (tmp5, tmp3, tmp4)); tmp6 = gen_reg_rtx (DImode); emit_insn (gen_lshrdi3 (tmp6, tmp5, GEN_INT (8))); emit_insn (gen_xordi3 (tmp, tmp5, tmp6)); } else rs6000_emit_popcount (tmp, src); emit_insn (gen_anddi3 (dst, tmp, const1_rtx)); } } /* Return an RTX representing where to find the function value of a function returning MODE. */ static rtx rs6000_complex_function_value (enum machine_mode mode) { unsigned int regno; rtx r1, r2; enum machine_mode inner = GET_MODE_INNER (mode); unsigned int inner_bytes = GET_MODE_SIZE (inner); if (FLOAT_MODE_P (mode) && TARGET_HARD_FLOAT && TARGET_FPRS) regno = FP_ARG_RETURN; else { regno = GP_ARG_RETURN; /* 32-bit is OK since it'll go in r3/r4. */ if (TARGET_32BIT && inner_bytes >= 4) return gen_rtx_REG (mode, regno); } if (inner_bytes >= 8) return gen_rtx_REG (mode, regno); r1 = gen_rtx_EXPR_LIST (inner, gen_rtx_REG (inner, regno), const0_rtx); r2 = gen_rtx_EXPR_LIST (inner, gen_rtx_REG (inner, regno + 1), GEN_INT (inner_bytes)); return gen_rtx_PARALLEL (mode, gen_rtvec (2, r1, r2)); } /* Target hook for TARGET_FUNCTION_VALUE. On the SPE, both FPs and vectors are returned in r3. On RS/6000 an integer value is in r3 and a floating-point value is in fp1, unless -msoft-float. */ rtx rs6000_function_value (const_tree valtype, const_tree fn_decl_or_type ATTRIBUTE_UNUSED, bool outgoing ATTRIBUTE_UNUSED) { enum machine_mode mode; unsigned int regno; /* Special handling for structs in darwin64. */ if (rs6000_darwin64_abi && TYPE_MODE (valtype) == BLKmode && TREE_CODE (valtype) == RECORD_TYPE && int_size_in_bytes (valtype) > 0) { CUMULATIVE_ARGS valcum; rtx valret; valcum.words = 0; valcum.fregno = FP_ARG_MIN_REG; valcum.vregno = ALTIVEC_ARG_MIN_REG; /* Do a trial code generation as if this were going to be passed as an argument; if any part goes in memory, we return NULL. */ valret = rs6000_darwin64_record_arg (&valcum, valtype, 1, true); if (valret) return valret; /* Otherwise fall through to standard ABI rules. */ } if (TARGET_32BIT && TARGET_POWERPC64 && TYPE_MODE (valtype) == DImode) { /* Long long return value need be split in -mpowerpc64, 32bit ABI. */ return gen_rtx_PARALLEL (DImode, gen_rtvec (2, gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (SImode, GP_ARG_RETURN), const0_rtx), gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (SImode, GP_ARG_RETURN + 1), GEN_INT (4)))); } if (TARGET_32BIT && TARGET_POWERPC64 && TYPE_MODE (valtype) == DCmode) { return gen_rtx_PARALLEL (DCmode, gen_rtvec (4, gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (SImode, GP_ARG_RETURN), const0_rtx), gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (SImode, GP_ARG_RETURN + 1), GEN_INT (4)), gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (SImode, GP_ARG_RETURN + 2), GEN_INT (8)), gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (SImode, GP_ARG_RETURN + 3), GEN_INT (12)))); } mode = TYPE_MODE (valtype); if ((INTEGRAL_TYPE_P (valtype) && GET_MODE_BITSIZE (mode) < BITS_PER_WORD) || POINTER_TYPE_P (valtype)) mode = TARGET_32BIT ? SImode : DImode; if (DECIMAL_FLOAT_MODE_P (mode) && TARGET_HARD_FLOAT && TARGET_FPRS) /* _Decimal128 must use an even/odd register pair. */ regno = (mode == TDmode) ? FP_ARG_RETURN + 1 : FP_ARG_RETURN; else if (SCALAR_FLOAT_TYPE_P (valtype) && TARGET_HARD_FLOAT && TARGET_FPRS && ((TARGET_SINGLE_FLOAT && (mode == SFmode)) || TARGET_DOUBLE_FLOAT)) regno = FP_ARG_RETURN; else if (TREE_CODE (valtype) == COMPLEX_TYPE && targetm.calls.split_complex_arg) return rs6000_complex_function_value (mode); else if (TREE_CODE (valtype) == VECTOR_TYPE && TARGET_ALTIVEC && TARGET_ALTIVEC_ABI && ALTIVEC_VECTOR_MODE (mode)) regno = ALTIVEC_ARG_RETURN; else if (TREE_CODE (valtype) == VECTOR_TYPE && TARGET_VSX && TARGET_ALTIVEC_ABI && VSX_VECTOR_MODE (mode)) regno = ALTIVEC_ARG_RETURN; else if (TARGET_E500_DOUBLE && TARGET_HARD_FLOAT && (mode == DFmode || mode == DCmode || mode == TFmode || mode == TCmode)) return spe_build_register_parallel (mode, GP_ARG_RETURN); else regno = GP_ARG_RETURN; return gen_rtx_REG (mode, regno); } /* Define how to find the value returned by a library function assuming the value has mode MODE. */ rtx rs6000_libcall_value (enum machine_mode mode) { unsigned int regno; if (TARGET_32BIT && TARGET_POWERPC64 && mode == DImode) { /* Long long return value need be split in -mpowerpc64, 32bit ABI. */ return gen_rtx_PARALLEL (DImode, gen_rtvec (2, gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (SImode, GP_ARG_RETURN), const0_rtx), gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (SImode, GP_ARG_RETURN + 1), GEN_INT (4)))); } if (DECIMAL_FLOAT_MODE_P (mode) && TARGET_HARD_FLOAT && TARGET_FPRS) /* _Decimal128 must use an even/odd register pair. */ regno = (mode == TDmode) ? FP_ARG_RETURN + 1 : FP_ARG_RETURN; else if (SCALAR_FLOAT_MODE_P (mode) && TARGET_HARD_FLOAT && TARGET_FPRS && ((TARGET_SINGLE_FLOAT && mode == SFmode) || TARGET_DOUBLE_FLOAT)) regno = FP_ARG_RETURN; else if (ALTIVEC_VECTOR_MODE (mode) && TARGET_ALTIVEC && TARGET_ALTIVEC_ABI) regno = ALTIVEC_ARG_RETURN; else if (VSX_VECTOR_MODE (mode) && TARGET_VSX && TARGET_ALTIVEC_ABI) regno = ALTIVEC_ARG_RETURN; else if (COMPLEX_MODE_P (mode) && targetm.calls.split_complex_arg) return rs6000_complex_function_value (mode); else if (TARGET_E500_DOUBLE && TARGET_HARD_FLOAT && (mode == DFmode || mode == DCmode || mode == TFmode || mode == TCmode)) return spe_build_register_parallel (mode, GP_ARG_RETURN); else regno = GP_ARG_RETURN; return gen_rtx_REG (mode, regno); } /* Given FROM and TO register numbers, say whether this elimination is allowed. Frame pointer elimination is automatically handled. For the RS/6000, if frame pointer elimination is being done, we would like to convert ap into fp, not sp. We need r30 if -mminimal-toc was specified, and there are constant pool references. */ bool rs6000_can_eliminate (const int from, const int to) { return (from == ARG_POINTER_REGNUM && to == STACK_POINTER_REGNUM ? ! frame_pointer_needed : from == RS6000_PIC_OFFSET_TABLE_REGNUM ? ! TARGET_MINIMAL_TOC || TARGET_NO_TOC || get_pool_size () == 0 : true); } /* Define the offset between two registers, FROM to be eliminated and its replacement TO, at the start of a routine. */ HOST_WIDE_INT rs6000_initial_elimination_offset (int from, int to) { rs6000_stack_t *info = rs6000_stack_info (); HOST_WIDE_INT offset; if (from == HARD_FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM) offset = info->push_p ? 0 : -info->total_size; else if (from == FRAME_POINTER_REGNUM && to == STACK_POINTER_REGNUM) { offset = info->push_p ? 0 : -info->total_size; if (FRAME_GROWS_DOWNWARD) offset += info->fixed_size + info->vars_size + info->parm_size; } else if (from == FRAME_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) offset = FRAME_GROWS_DOWNWARD ? info->fixed_size + info->vars_size + info->parm_size : 0; else if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) offset = info->total_size; else if (from == ARG_POINTER_REGNUM && to == STACK_POINTER_REGNUM) offset = info->push_p ? info->total_size : 0; else if (from == RS6000_PIC_OFFSET_TABLE_REGNUM) offset = 0; else gcc_unreachable (); return offset; } static rtx rs6000_dwarf_register_span (rtx reg) { rtx parts[8]; int i, words; unsigned regno = REGNO (reg); enum machine_mode mode = GET_MODE (reg); if (TARGET_SPE && regno < 32 && (SPE_VECTOR_MODE (GET_MODE (reg)) || (TARGET_E500_DOUBLE && FLOAT_MODE_P (mode) && mode != SFmode && mode != SDmode && mode != SCmode))) ; else return NULL_RTX; regno = REGNO (reg); /* The duality of the SPE register size wreaks all kinds of havoc. This is a way of distinguishing r0 in 32-bits from r0 in 64-bits. */ words = (GET_MODE_SIZE (mode) + UNITS_PER_FP_WORD - 1) / UNITS_PER_FP_WORD; gcc_assert (words <= 4); for (i = 0; i < words; i++, regno++) { if (BYTES_BIG_ENDIAN) { parts[2 * i] = gen_rtx_REG (SImode, regno + 1200); parts[2 * i + 1] = gen_rtx_REG (SImode, regno); } else { parts[2 * i] = gen_rtx_REG (SImode, regno); parts[2 * i + 1] = gen_rtx_REG (SImode, regno + 1200); } } return gen_rtx_PARALLEL (VOIDmode, gen_rtvec_v (words * 2, parts)); } /* Fill in sizes for SPE register high parts in table used by unwinder. */ static void rs6000_init_dwarf_reg_sizes_extra (tree address) { if (TARGET_SPE) { int i; enum machine_mode mode = TYPE_MODE (char_type_node); rtx addr = expand_expr (address, NULL_RTX, VOIDmode, EXPAND_NORMAL); rtx mem = gen_rtx_MEM (BLKmode, addr); rtx value = gen_int_mode (4, mode); for (i = 1201; i < 1232; i++) { int column = DWARF_REG_TO_UNWIND_COLUMN (i); HOST_WIDE_INT offset = DWARF_FRAME_REGNUM (column) * GET_MODE_SIZE (mode); emit_move_insn (adjust_address (mem, mode, offset), value); } } } /* Map internal gcc register numbers to DWARF2 register numbers. */ unsigned int rs6000_dbx_register_number (unsigned int regno) { if (regno <= 63 || write_symbols != DWARF2_DEBUG) return regno; if (regno == MQ_REGNO) return 100; if (regno == LR_REGNO) return 108; if (regno == CTR_REGNO) return 109; if (CR_REGNO_P (regno)) return regno - CR0_REGNO + 86; if (regno == XER_REGNO) return 101; if (ALTIVEC_REGNO_P (regno)) return regno - FIRST_ALTIVEC_REGNO + 1124; if (regno == VRSAVE_REGNO) return 356; if (regno == VSCR_REGNO) return 67; if (regno == SPE_ACC_REGNO) return 99; if (regno == SPEFSCR_REGNO) return 612; /* SPE high reg number. We get these values of regno from rs6000_dwarf_register_span. */ gcc_assert (regno >= 1200 && regno < 1232); return regno; } /* target hook eh_return_filter_mode */ static enum machine_mode rs6000_eh_return_filter_mode (void) { return TARGET_32BIT ? SImode : word_mode; } /* Target hook for scalar_mode_supported_p. */ static bool rs6000_scalar_mode_supported_p (enum machine_mode mode) { if (DECIMAL_FLOAT_MODE_P (mode)) return default_decimal_float_supported_p (); else return default_scalar_mode_supported_p (mode); } /* Target hook for vector_mode_supported_p. */ static bool rs6000_vector_mode_supported_p (enum machine_mode mode) { if (TARGET_PAIRED_FLOAT && PAIRED_VECTOR_MODE (mode)) return true; if (TARGET_SPE && SPE_VECTOR_MODE (mode)) return true; else if (VECTOR_MEM_ALTIVEC_OR_VSX_P (mode)) return true; else return false; } /* Target hook for invalid_arg_for_unprototyped_fn. */ static const char * invalid_arg_for_unprototyped_fn (const_tree typelist, const_tree funcdecl, const_tree val) { return (!rs6000_darwin64_abi && typelist == 0 && TREE_CODE (TREE_TYPE (val)) == VECTOR_TYPE && (funcdecl == NULL_TREE || (TREE_CODE (funcdecl) == FUNCTION_DECL && DECL_BUILT_IN_CLASS (funcdecl) != BUILT_IN_MD))) ? N_("AltiVec argument passed to unprototyped function") : NULL; } /* For TARGET_SECURE_PLT 32-bit PIC code we can save PIC register setup by using __stack_chk_fail_local hidden function instead of calling __stack_chk_fail directly. Otherwise it is better to call __stack_chk_fail directly. */ static tree rs6000_stack_protect_fail (void) { return (DEFAULT_ABI == ABI_V4 && TARGET_SECURE_PLT && flag_pic) ? default_hidden_stack_protect_fail () : default_external_stack_protect_fail (); } void rs6000_final_prescan_insn (rtx insn, rtx *operand ATTRIBUTE_UNUSED, int num_operands ATTRIBUTE_UNUSED) { if (rs6000_warn_cell_microcode) { const char *temp; int insn_code_number = recog_memoized (insn); location_t location = locator_location (INSN_LOCATOR (insn)); /* Punt on insns we cannot recognize. */ if (insn_code_number < 0) return; temp = get_insn_template (insn_code_number, insn); if (get_attr_cell_micro (insn) == CELL_MICRO_ALWAYS) warning_at (location, OPT_mwarn_cell_microcode, "emitting microcode insn %s\t[%s] #%d", temp, insn_data[INSN_CODE (insn)].name, INSN_UID (insn)); else if (get_attr_cell_micro (insn) == CELL_MICRO_CONDITIONAL) warning_at (location, OPT_mwarn_cell_microcode, "emitting conditional microcode insn %s\t[%s] #%d", temp, insn_data[INSN_CODE (insn)].name, INSN_UID (insn)); } } #include "gt-rs6000.h"
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