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;; Predicate definitions for HP PA-RISC.
;; Copyright (C) 2005, 2007, 2010, 2011 Free Software Foundation, Inc.
;;
;; 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/>.
;; Return truth value of whether OP is an integer which fits the range
;; constraining 5-bit signed immediate operands in three-address insns.
(define_predicate "int5_operand"
(and (match_code "const_int")
(match_test "INT_5_BITS (op)")))
;; Return truth value of whether OP is an integer which fits the range
;; constraining 5-bit unsigned immediate operands in three-address insns.
(define_predicate "uint5_operand"
(and (match_code "const_int")
(match_test "INT_U5_BITS (op)")))
;; Return truth value of whether OP is an integer which fits the range
;; constraining 11-bit signed immediate operands in three-address insns.
(define_predicate "int11_operand"
(and (match_code "const_int")
(match_test "INT_11_BITS (op)")))
;; Return truth value of whether OP is an integer which fits the range
;; constraining 14-bit signed immediate operands in three-address insns.
(define_predicate "int14_operand"
(and (match_code "const_int")
(match_test "INT_14_BITS (op)")))
;; True iff OP is a const_int or const_double that will fit in 32 bits.
(define_predicate "uint32_operand"
(if_then_else (match_test "HOST_BITS_PER_WIDE_INT > 32")
(and (match_code "const_int")
(match_test "INTVAL (op) >= 0
&& INTVAL (op) < (HOST_WIDE_INT) 1 << 32"))
(and (match_code "const_int,const_double")
(match_test "CONST_INT_P (op) || CONST_DOUBLE_HIGH (op) == 0"))))
;; True iff depi can be used to compute (reg | OP).
(define_predicate "cint_ior_operand"
(and (match_code "const_int")
(match_test "pa_ior_mask_p (INTVAL (op))")))
;; True iff OP is CONST_INT that can be moved in one instruction
;; into a general register.
(define_predicate "cint_move_operand"
(and (match_code "const_int")
(match_test "pa_cint_ok_for_move (INTVAL (op))")))
;; True iff OP is a CONST0_RTX for MODE.
(define_predicate "const_0_operand"
(and (match_code "const_int,const_double")
(match_test "op == CONST0_RTX (mode)")))
;; A constant integer suitable for use in a PRE_MODIFY memory reference.
(define_predicate "pre_cint_operand"
(and (match_code "const_int")
(match_test "INTVAL (op) >= -0x2000 && INTVAL (op) < 0x10")))
;; A constant integer suitable for use in a POST_MODIFY memory reference.
(define_predicate "post_cint_operand"
(and (match_code "const_int")
(match_test "INTVAL (op) < 0x2000 && INTVAL (op) >= -0x10")))
;; True iff depi or extru can be used to compute (reg & OP).
(define_predicate "and_operand"
(ior (match_operand 0 "register_operand")
(and (match_code "const_int")
(match_test "pa_and_mask_p (INTVAL (op))"))))
;; Return truth value of whether OP can be used as an operand in a
;; three operand arithmetic insn that accepts registers of mode MODE
;; or 5-bit signed integers.
(define_predicate "arith5_operand"
(ior (match_operand 0 "register_operand")
(match_operand 0 "int5_operand")))
;; Return truth value of whether OP can be used as an operand in a
;; three operand arithmetic insn that accepts registers of mode MODE
;; or 11-bit signed integers.
(define_predicate "arith11_operand"
(ior (match_operand 0 "register_operand")
(match_operand 0 "int11_operand")))
;; Return truth value of whether OP can be used as an operand in a
;; three operand arithmetic insn that accepts registers of mode MODE
;; or 14-bit signed integers.
(define_predicate "arith14_operand"
(ior (match_operand 0 "register_operand")
(match_operand 0 "int14_operand")))
;; Return truth value of whether OP can be used as an operand in a
;; three operand arithmetic insn that accepts registers of mode MODE
;; or 32-bit signed integers.
(define_predicate "arith32_operand"
(ior (match_operand 0 "register_operand")
(match_code "const_int")))
;; True iff OP can be used as an operand in an adddi3 insn.
(define_predicate "adddi3_operand"
(if_then_else (match_test "TARGET_64BIT")
(match_operand 0 "arith14_operand")
(match_operand 0 "arith11_operand")))
;; True iff OP is valid as a base or index register in a REG+REG address.
(define_predicate "borx_reg_operand"
(match_code "reg")
{
/* We must reject virtual registers as the only expressions that
can be instantiated are REG and REG+CONST. */
if (op == virtual_incoming_args_rtx
|| op == virtual_stack_vars_rtx
|| op == virtual_stack_dynamic_rtx
|| op == virtual_outgoing_args_rtx
|| op == virtual_cfa_rtx)
return false;
/* While it's always safe to index off the frame pointer, it's not
profitable to do so when the frame pointer is being eliminated. */
if (!reload_completed
&& flag_omit_frame_pointer
&& !cfun->calls_alloca
&& op == frame_pointer_rtx)
return false;
return register_operand (op, mode);
})
;; Return nonzero if OP is suitable for use in a call to a named
;; function.
;;
;; For 2.5 try to eliminate either call_operand_address or
;; function_label_operand, they perform very similar functions.
(define_predicate "call_operand_address"
(match_code "label_ref,symbol_ref,const_int,const_double,const,high")
{
return (GET_MODE (op) == word_mode
&& CONSTANT_P (op) && ! TARGET_PORTABLE_RUNTIME);
})
;; True iff OP can be used as the divisor in a div millicode call.
(define_predicate "div_operand"
(match_code "reg,const_int")
{
return (mode == SImode
&& ((REG_P (op) && REGNO (op) == 25)
|| (CONST_INT_P (op)
&& INTVAL (op) > 0 && INTVAL (op) < 16
&& pa_magic_milli[INTVAL (op)])));
})
;; True iff OP is a reloading floating point register
(define_predicate "fp_reg_operand"
(and (match_code "reg")
(match_test "reg_renumber && FP_REG_P (op)")))
;; True iff OP is a function label operand.
(define_special_predicate "function_label_operand"
(and (match_code "symbol_ref")
(match_test "FUNCTION_NAME_P (XSTR (op, 0))")))
;; True iff OP is an indexed memory operand.
(define_predicate "indexed_memory_operand"
(match_code "subreg,mem")
{
if (GET_MODE (op) != mode)
return false;
/* Before reload, a (SUBREG (MEM...)) forces reloading into a register. */
if (reload_completed && GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (! MEM_P (op))
return false;
op = XEXP (op, 0);
return IS_INDEX_ADDR_P (op) && memory_address_p (mode, op);
})
;; True iff the operand OP can be used as the destination operand of
;; an integer store. This also implies the operand could be used as
;; the source operand of an integer load. Symbolic, lo_sum and indexed
;; memory operands are not allowed. We accept reloading pseudos and
;; other memory operands.
(define_predicate "integer_store_memory_operand"
(match_code "reg,mem")
{
return ((reload_in_progress
&& REG_P (op)
&& REGNO (op) >= FIRST_PSEUDO_REGISTER
&& reg_renumber [REGNO (op)] < 0)
|| (MEM_P (op)
&& (reload_in_progress || memory_address_p (mode, XEXP (op, 0)))
&& !symbolic_memory_operand (op, VOIDmode)
&& !IS_LO_SUM_DLT_ADDR_P (XEXP (op, 0))
&& !IS_INDEX_ADDR_P (XEXP (op, 0))));
})
;; Return true iff OP is an integer register.
(define_predicate "ireg_operand"
(and (match_code "reg")
(match_test "REGNO (op) > 0 && REGNO (op) < 32")))
;; Return truth value of whether OP is an integer which fits the range
;; constraining immediate operands in three-address insns, or is an
;; integer register.
(define_predicate "ireg_or_int5_operand"
(ior (match_operand 0 "ireg_operand")
(match_operand 0 "int5_operand")))
;; True iff OP is a CONST_INT of the forms 0...0xxxx or
;; 0...01...1xxxx. Such values can be the left hand side x in (x <<
;; r), using the zvdepi instruction.
(define_predicate "lhs_lshift_cint_operand"
(match_code "const_int")
{
unsigned HOST_WIDE_INT x;
x = INTVAL (op) >> 4;
return (x & (x + 1)) == 0;
})
;; True iff OP can be used in a zvdep instruction.
(define_predicate "lhs_lshift_operand"
(ior (match_operand 0 "register_operand")
(match_operand 0 "lhs_lshift_cint_operand")))
;; Accept anything that can be used as a destination operand for a
;; move instruction. We don't accept indexed memory operands since
;; they are supported only for floating point stores.
(define_predicate "move_dest_operand"
(match_code "subreg,reg,mem")
{
if (register_operand (op, mode))
return true;
if (GET_MODE (op) != mode)
return false;
if (GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (GET_CODE (op) != MEM || symbolic_memory_operand (op, mode))
return false;
op = XEXP (op, 0);
return (memory_address_p (mode, op)
&& !IS_INDEX_ADDR_P (op)
&& !IS_LO_SUM_DLT_ADDR_P (op));
})
;; Accept anything that can be used as a source operand for a move
;; instruction.
(define_predicate "move_src_operand"
(match_code "subreg,reg,const_int,const_double,mem")
{
if (register_operand (op, mode))
return true;
if (op == CONST0_RTX (mode))
return true;
if (CONST_INT_P (op))
return pa_cint_ok_for_move (INTVAL (op));
if (GET_MODE (op) != mode)
return false;
if (GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (! MEM_P (op))
return false;
/* Until problems with management of the REG_POINTER flag are resolved,
we need to delay creating move insns with unscaled indexed addresses
until CSE is not expected. */
if (!TARGET_NO_SPACE_REGS
&& !cse_not_expected
&& GET_CODE (XEXP (op, 0)) == PLUS
&& REG_P (XEXP (XEXP (op, 0), 0))
&& REG_P (XEXP (XEXP (op, 0), 1)))
return false;
return memory_address_p (mode, XEXP (op, 0));
})
;; True iff OP is not a symbolic memory operand.
(define_predicate "nonsymb_mem_operand"
(match_code "subreg,mem")
{
if (GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (! MEM_P (op))
return false;
/* Until problems with management of the REG_POINTER flag are resolved,
we need to delay creating move insns with unscaled indexed addresses
until CSE is not expected. */
if (!TARGET_NO_SPACE_REGS
&& !cse_not_expected
&& GET_CODE (XEXP (op, 0)) == PLUS
&& REG_P (XEXP (XEXP (op, 0), 0))
&& REG_P (XEXP (XEXP (op, 0), 1)))
return false;
return (!symbolic_memory_operand (op, mode)
&& memory_address_p (mode, XEXP (op, 0)));
})
;; True iff OP is anything other than a hard register.
(define_predicate "non_hard_reg_operand"
(match_test "! (REG_P (op) && REGNO (op) < FIRST_PSEUDO_REGISTER)"))
;; True iff OP is a reference to a label whose address can be loaded
;; while generating PIC code.
(define_predicate "pic_label_operand"
(match_code "label_ref,const")
{
if (!flag_pic)
return false;
switch (GET_CODE (op))
{
case LABEL_REF:
return true;
case CONST:
op = XEXP (op, 0);
return (GET_CODE (XEXP (op, 0)) == LABEL_REF
&& CONST_INT_P (XEXP (op, 1)));
default:
gcc_unreachable ();
}
return false;
})
;; True iff the operand OP lives in text space. OP is a symbolic operand.
;; If so, SYMBOL_REF_FLAG, which is set by pa_encode_section_info, is true.
(define_special_predicate "read_only_operand"
(match_test "true")
{
if (GET_CODE (op) == CONST)
op = XEXP (XEXP (op, 0), 0);
if (GET_CODE (op) == SYMBOL_REF)
{
if (flag_pic)
return SYMBOL_REF_FLAG (op) && !CONSTANT_POOL_ADDRESS_P (op);
else
return SYMBOL_REF_FLAG (op) || CONSTANT_POOL_ADDRESS_P (op);
}
return true;
})
;; True iff the operand is a register operand, or a non-symbolic
;; memory operand after reload. A SUBREG is not accepted since it
;; will need a reload.
;;
;; This predicate is used for branch patterns that internally handle
;; register reloading. We need to accept non-symbolic memory operands
;; after reload to ensure that the pattern is still valid if reload
;; didn't find a hard register for the operand.
(define_predicate "reg_before_reload_operand"
(match_code "reg,mem")
{
if (register_operand (op, mode))
return true;
if (reload_completed
&& memory_operand (op, mode)
&& !symbolic_memory_operand (op, mode))
return true;
return false;
})
;; True iff OP is a register or const_0 operand for MODE.
(define_predicate "reg_or_0_operand"
(ior (match_operand 0 "register_operand")
(match_operand 0 "const_0_operand")))
;; True iff OP is either a register, zero, or a non-symbolic memory operand.
(define_predicate "reg_or_0_or_nonsymb_mem_operand"
(ior (match_operand 0 "reg_or_0_operand")
(match_operand 0 "nonsymb_mem_operand")))
;; Accept REG and any CONST_INT that can be moved in one instruction
;; into a general register.
(define_predicate "reg_or_cint_move_operand"
(ior (match_operand 0 "register_operand")
(match_operand 0 "cint_move_operand")))
;; True iff OP can be used to compute (reg | OP).
(define_predicate "reg_or_cint_ior_operand"
(ior (match_operand 0 "register_operand")
(match_operand 0 "cint_ior_operand")))
;; Return 1 if OP is a CONST_INT with the value 2, 4, or 8. These are
;; the valid constants for shadd instructions.
(define_predicate "shadd_operand"
(and (match_code "const_int")
(match_test "pa_shadd_constant_p (INTVAL (op))")))
;; Return truth value of statement that OP is a symbolic memory operand.
(define_predicate "symbolic_memory_operand"
(match_code "subreg,mem")
{
if (GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (!MEM_P (op))
return false;
return pa_symbolic_expression_p (XEXP (op, 0));
})
;; True iff OP is a symbolic operand.
;; Note: an inline copy of this code is present in pa_secondary_reload.
(define_predicate "symbolic_operand"
(match_code "symbol_ref,label_ref,const")
{
switch (GET_CODE (op))
{
case SYMBOL_REF:
return !SYMBOL_REF_TLS_MODEL (op);
case LABEL_REF:
return true;
case CONST:
op = XEXP (op, 0);
return (GET_CODE (op) == PLUS
&& ((GET_CODE (XEXP (op, 0)) == SYMBOL_REF
&& !SYMBOL_REF_TLS_MODEL (XEXP (op, 0)))
|| GET_CODE (XEXP (op, 0)) == LABEL_REF)
&& GET_CODE (XEXP (op, 1)) == CONST_INT);
default:
gcc_unreachable ();
}
return true;
})
;; Return true if OP is a symbolic operand for the TLS Global Dynamic model.
(define_predicate "tgd_symbolic_operand"
(and (match_code "symbol_ref")
(match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_GLOBAL_DYNAMIC")))
;; Return true if OP is a symbolic operand for the TLS Local Dynamic model.
(define_predicate "tld_symbolic_operand"
(and (match_code "symbol_ref")
(match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_DYNAMIC")))
;; Return true if OP is a symbolic operand for the TLS Initial Exec model.
(define_predicate "tie_symbolic_operand"
(and (match_code "symbol_ref")
(match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_INITIAL_EXEC")))
;; Return true if OP is a symbolic operand for the TLS Local Exec model.
(define_predicate "tle_symbolic_operand"
(and (match_code "symbol_ref")
(match_test "SYMBOL_REF_TLS_MODEL (op) == TLS_MODEL_LOCAL_EXEC")))
;; True iff this is a comparison operator. This allows the use of
;; MATCH_OPERATOR to recognize all the branch insns.
(define_predicate "cmpib_comparison_operator"
(match_code "eq,ne,lt,le,leu,gt,gtu,ge"))
;; True iff OP is an operator suitable for use in a movb instruction.
(define_predicate "movb_comparison_operator"
(match_code "eq,ne,lt,ge"))
;; True iff OP is a PLUS, XOR or IOR operator.
(define_predicate "plus_xor_ior_operator"
(match_code "plus,xor,ior"))
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