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jeremybenn |
/* Prototypes of target machine for GNU compiler. MIPS version.
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Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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1999, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
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Free Software Foundation, Inc.
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Contributed by A. Lichnewsky (lich@inria.inria.fr).
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Changed by Michael Meissner (meissner@osf.org).
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64-bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and
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Brendan Eich (brendan@microunity.com).
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_MIPS_PROTOS_H
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#define GCC_MIPS_PROTOS_H
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/* Describes how a symbol is used.
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SYMBOL_CONTEXT_CALL
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The symbol is used as the target of a call instruction.
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SYMBOL_CONTEXT_LEA
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The symbol is used in a load-address operation.
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SYMBOL_CONTEXT_MEM
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The symbol is used as the address in a MEM. */
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enum mips_symbol_context {
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SYMBOL_CONTEXT_CALL,
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SYMBOL_CONTEXT_LEA,
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SYMBOL_CONTEXT_MEM
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};
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/* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address.
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SYMBOL_ABSOLUTE
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The symbol's value will be calculated using absolute relocations,
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such as %hi and %lo.
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SYMBOL_GP_RELATIVE
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The symbol's value will be calculated by adding a 16-bit offset
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from $gp.
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SYMBOL_PC_RELATIVE
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The symbol's value will be calculated using a MIPS16 PC-relative
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calculation.
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SYMBOL_FORCE_TO_MEM
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The symbol's value must be forced to memory and loaded from there.
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SYMBOL_GOT_PAGE_OFST
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The symbol's value will be calculated by loading an address
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from the GOT and then applying a 16-bit offset.
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SYMBOL_GOT_DISP
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The symbol's value will be loaded directly from the GOT.
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SYMBOL_GOTOFF_PAGE
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An UNSPEC wrapper around a SYMBOL_GOT_PAGE_OFST. It represents the
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offset from _gp of the GOT entry.
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SYMBOL_GOTOFF_DISP
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An UNSPEC wrapper around a SYMBOL_GOT_DISP. It represents the
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the offset from _gp of the symbol's GOT entry.
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SYMBOL_GOTOFF_CALL
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Like SYMBOL_GOTOFF_DISP, but used when calling a global function.
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The GOT entry is allowed to point to a stub rather than to the
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function itself.
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SYMBOL_GOTOFF_LOADGP
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An UNSPEC wrapper around a function's address. It represents the
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offset of _gp from the start of the function.
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SYMBOL_TLS
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A thread-local symbol.
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SYMBOL_TLSGD
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SYMBOL_TLSLDM
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SYMBOL_DTPREL
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SYMBOL_GOTTPREL
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SYMBOL_TPREL
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UNSPEC wrappers around SYMBOL_TLS, corresponding to the
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thread-local storage relocation operators.
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SYMBOL_32_HIGH
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For a 32-bit symbolic address X, this is the value of %hi(X).
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SYMBOL_64_HIGH
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For a 64-bit symbolic address X, this is the value of
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(%highest(X) << 16) + %higher(X).
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SYMBOL_64_MID
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For a 64-bit symbolic address X, this is the value of
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(%higher(X) << 16) + %hi(X).
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SYMBOL_64_LOW
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For a 64-bit symbolic address X, this is the value of
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(%hi(X) << 16) + %lo(X).
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SYMBOL_HALF
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An UNSPEC wrapper around any kind of address. It represents the
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low 16 bits of that address. */
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enum mips_symbol_type {
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SYMBOL_ABSOLUTE,
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SYMBOL_GP_RELATIVE,
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SYMBOL_PC_RELATIVE,
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SYMBOL_FORCE_TO_MEM,
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SYMBOL_GOT_PAGE_OFST,
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SYMBOL_GOT_DISP,
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SYMBOL_GOTOFF_PAGE,
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SYMBOL_GOTOFF_DISP,
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SYMBOL_GOTOFF_CALL,
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SYMBOL_GOTOFF_LOADGP,
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SYMBOL_TLS,
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SYMBOL_TLSGD,
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SYMBOL_TLSLDM,
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SYMBOL_DTPREL,
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SYMBOL_GOTTPREL,
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SYMBOL_TPREL,
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SYMBOL_32_HIGH,
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SYMBOL_64_HIGH,
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SYMBOL_64_MID,
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SYMBOL_64_LOW,
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SYMBOL_HALF
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};
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#define NUM_SYMBOL_TYPES (SYMBOL_HALF + 1)
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/* Identifiers a style of $gp initialization sequence.
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LOADGP_NONE
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No initialization sequence is needed.
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LOADGP_OLDABI
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The o32 and o64 PIC sequence (the kind traditionally generated
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by .cpload).
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LOADGP_NEWABI
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The n32 and n64 PIC sequence (the kind traditionally generated
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by .cpsetup).
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LOADGP_ABSOLUTE
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The GNU absolute sequence, as generated by loadgp_absolute.
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LOADGP_RTP
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The VxWorks RTP PIC sequence, as generated by loadgp_rtp. */
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enum mips_loadgp_style {
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LOADGP_NONE,
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LOADGP_OLDABI,
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LOADGP_NEWABI,
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LOADGP_ABSOLUTE,
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LOADGP_RTP
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};
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struct mips16e_save_restore_info;
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/* Classifies a type of call.
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MIPS_CALL_NORMAL
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A normal call or call_value pattern.
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MIPS_CALL_SIBCALL
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A sibcall or sibcall_value pattern.
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MIPS_CALL_EPILOGUE
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A call inserted in the epilogue. */
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enum mips_call_type {
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MIPS_CALL_NORMAL,
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MIPS_CALL_SIBCALL,
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MIPS_CALL_EPILOGUE
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};
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extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_context,
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enum mips_symbol_type *);
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extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, bool);
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extern bool mips_stack_address_p (rtx, enum machine_mode);
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extern int mips_address_insns (rtx, enum machine_mode, bool);
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extern int mips_const_insns (rtx);
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extern int mips_split_const_insns (rtx);
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extern int mips_load_store_insns (rtx, rtx);
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extern int mips_idiv_insns (void);
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extern rtx mips_emit_move (rtx, rtx);
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extern rtx mips_pic_base_register (rtx);
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extern rtx mips_got_load (rtx, rtx, enum mips_symbol_type);
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extern bool mips_split_symbol (rtx, rtx, enum machine_mode, rtx *);
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extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
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extern void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT);
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extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
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extern int m16_uimm3_b (rtx, enum machine_mode);
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extern int m16_simm4_1 (rtx, enum machine_mode);
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extern int m16_nsimm4_1 (rtx, enum machine_mode);
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extern int m16_simm5_1 (rtx, enum machine_mode);
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extern int m16_nsimm5_1 (rtx, enum machine_mode);
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extern int m16_uimm5_4 (rtx, enum machine_mode);
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extern int m16_nuimm5_4 (rtx, enum machine_mode);
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extern int m16_simm8_1 (rtx, enum machine_mode);
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extern int m16_nsimm8_1 (rtx, enum machine_mode);
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extern int m16_uimm8_1 (rtx, enum machine_mode);
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extern int m16_nuimm8_1 (rtx, enum machine_mode);
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extern int m16_uimm8_m1_1 (rtx, enum machine_mode);
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extern int m16_uimm8_4 (rtx, enum machine_mode);
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extern int m16_nuimm8_4 (rtx, enum machine_mode);
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extern int m16_simm8_8 (rtx, enum machine_mode);
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extern int m16_nsimm8_8 (rtx, enum machine_mode);
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extern rtx mips_subword (rtx, bool);
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extern bool mips_split_64bit_move_p (rtx, rtx);
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extern void mips_split_doubleword_move (rtx, rtx);
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extern const char *mips_output_move (rtx, rtx);
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extern bool mips_cfun_has_cprestore_slot_p (void);
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extern bool mips_cprestore_address_p (rtx, bool);
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extern void mips_save_gp_to_cprestore_slot (rtx, rtx, rtx, rtx);
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extern void mips_restore_gp_from_cprestore_slot (rtx);
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#ifdef RTX_CODE
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extern void mips_expand_scc (rtx *);
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extern void mips_expand_conditional_branch (rtx *);
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extern void mips_expand_vcondv2sf (rtx, rtx, rtx, enum rtx_code, rtx, rtx);
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extern void mips_expand_conditional_move (rtx *);
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extern void mips_expand_conditional_trap (rtx);
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#endif
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extern bool mips_use_pic_fn_addr_reg_p (const_rtx);
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extern rtx mips_expand_call (enum mips_call_type, rtx, rtx, rtx, rtx, bool);
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extern void mips_split_call (rtx, rtx);
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extern bool mips_get_pic_call_symbol (rtx *, int);
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extern void mips_expand_fcc_reload (rtx, rtx, rtx);
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extern void mips_set_return_address (rtx, rtx);
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extern bool mips_expand_block_move (rtx, rtx, rtx);
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extern void mips_expand_synci_loop (rtx, rtx);
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extern void mips_init_cumulative_args (CUMULATIVE_ARGS *, tree);
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extern void mips_function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
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tree, int);
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extern rtx mips_function_arg (const CUMULATIVE_ARGS *,
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enum machine_mode, tree, int);
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extern int mips_function_arg_boundary (enum machine_mode, tree);
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extern bool mips_pad_arg_upward (enum machine_mode, const_tree);
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extern bool mips_pad_reg_upward (enum machine_mode, tree);
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extern bool mips_expand_ext_as_unaligned_load (rtx, rtx, HOST_WIDE_INT,
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HOST_WIDE_INT);
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extern bool mips_expand_ins_as_unaligned_store (rtx, rtx, HOST_WIDE_INT,
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HOST_WIDE_INT);
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extern bool mips_mem_fits_mode_p (enum machine_mode mode, rtx x);
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extern void mips_override_options (void);
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extern void mips_conditional_register_usage (void);
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extern void mips_order_regs_for_local_alloc (void);
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extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
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extern void mips_push_asm_switch (struct mips_asm_switch *);
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extern void mips_pop_asm_switch (struct mips_asm_switch *);
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extern void mips_print_operand (FILE *, rtx, int);
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extern void mips_print_operand_address (FILE *, rtx);
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extern void mips_output_external (FILE *, tree, const char *);
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extern void mips_output_filename (FILE *, const char *);
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extern void mips_output_ascii (FILE *, const char *, size_t);
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extern void mips_output_aligned_decl_common (FILE *, tree, const char *,
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unsigned HOST_WIDE_INT,
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unsigned int);
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extern void mips_declare_common_object (FILE *, const char *,
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const char *, unsigned HOST_WIDE_INT,
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unsigned int, bool);
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extern void mips_declare_object (FILE *, const char *, const char *,
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const char *, ...) ATTRIBUTE_PRINTF_4;
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extern void mips_declare_object_name (FILE *, const char *, tree);
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extern void mips_finish_declare_object (FILE *, tree, int, int);
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| 279 |
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extern bool mips_small_data_pattern_p (rtx);
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extern rtx mips_rewrite_small_data (rtx);
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extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
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| 282 |
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extern rtx mips_return_addr (int, rtx);
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| 283 |
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extern bool mips_must_initialize_gp_p (void);
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extern enum mips_loadgp_style mips_current_loadgp_style (void);
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| 285 |
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extern void mips_emit_save_slot_move (rtx, rtx, rtx);
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extern void mips_expand_prologue (void);
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extern void mips_expand_before_return (void);
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extern void mips_expand_epilogue (bool);
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extern bool mips_can_use_return_insn (void);
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extern rtx mips_function_value (const_tree, const_tree, enum machine_mode);
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| 291 |
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| 292 |
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extern bool mips_cannot_change_mode_class (enum machine_mode,
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| 293 |
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enum machine_mode, enum reg_class);
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| 294 |
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extern bool mips_dangerous_for_la25_p (rtx);
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| 295 |
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extern bool mips_modes_tieable_p (enum machine_mode, enum machine_mode);
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| 296 |
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extern enum reg_class mips_preferred_reload_class (rtx, enum reg_class);
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| 297 |
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extern enum reg_class mips_secondary_reload_class (enum reg_class,
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| 298 |
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enum machine_mode,
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rtx, bool);
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| 300 |
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extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
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| 301 |
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extern int mips_register_move_cost (enum machine_mode, enum reg_class,
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enum reg_class);
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| 304 |
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extern int mips_adjust_insn_length (rtx, int);
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extern void mips_output_load_label (rtx);
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extern const char *mips_output_conditional_branch (rtx, rtx *, const char *,
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const char *);
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extern const char *mips_output_order_conditional_branch (rtx, rtx *, bool);
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| 309 |
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extern const char *mips_output_sync (void);
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| 310 |
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extern const char *mips_output_sync_loop (rtx, rtx *);
|
| 311 |
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extern unsigned int mips_sync_loop_insns (rtx, rtx *);
|
| 312 |
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extern const char *mips_output_division (const char *, rtx *);
|
| 313 |
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extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
|
| 314 |
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extern bool mips_linked_madd_p (rtx, rtx);
|
| 315 |
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extern bool mips_store_data_bypass_p (rtx, rtx);
|
| 316 |
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extern rtx mips_prefetch_cookie (rtx, rtx);
|
| 317 |
|
|
|
| 318 |
|
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extern void irix_asm_output_align (FILE *, unsigned);
|
| 319 |
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extern const char *current_section_name (void);
|
| 320 |
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extern unsigned int current_section_flags (void);
|
| 321 |
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extern bool mips_use_ins_ext_p (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
|
| 322 |
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|
|
| 323 |
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extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT);
|
| 324 |
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extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT,
|
| 325 |
|
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struct mips16e_save_restore_info *);
|
| 326 |
|
|
|
| 327 |
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extern bool mask_low_and_shift_p (enum machine_mode, rtx, rtx, int);
|
| 328 |
|
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extern int mask_low_and_shift_len (enum machine_mode, rtx, rtx);
|
| 329 |
|
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extern bool and_operands_ok (enum machine_mode, rtx, rtx);
|
| 330 |
|
|
|
| 331 |
|
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union mips_gen_fn_ptrs
|
| 332 |
|
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{
|
| 333 |
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rtx (*fn_6) (rtx, rtx, rtx, rtx, rtx, rtx);
|
| 334 |
|
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rtx (*fn_5) (rtx, rtx, rtx, rtx, rtx);
|
| 335 |
|
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rtx (*fn_4) (rtx, rtx, rtx, rtx);
|
| 336 |
|
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};
|
| 337 |
|
|
|
| 338 |
|
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extern void mips_expand_atomic_qihi (union mips_gen_fn_ptrs,
|
| 339 |
|
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rtx, rtx, rtx, rtx);
|
| 340 |
|
|
|
| 341 |
|
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extern void mips_expand_vector_init (rtx, rtx);
|
| 342 |
|
|
|
| 343 |
|
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extern bool mips_eh_uses (unsigned int);
|
| 344 |
|
|
extern bool mips_epilogue_uses (unsigned int);
|
| 345 |
|
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extern void mips_final_prescan_insn (rtx, rtx *, int);
|
| 346 |
|
|
extern int mips_trampoline_code_size (void);
|
| 347 |
|
|
extern void mips_function_profiler (FILE *);
|
| 348 |
|
|
|
| 349 |
|
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typedef rtx (*mulsidi3_gen_fn) (rtx, rtx, rtx);
|
| 350 |
|
|
#ifdef RTX_CODE
|
| 351 |
|
|
extern mulsidi3_gen_fn mips_mulsidi3_gen_fn (enum rtx_code);
|
| 352 |
|
|
#endif
|
| 353 |
|
|
|
| 354 |
|
|
#endif /* ! GCC_MIPS_PROTOS_H */
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