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;; Predicate definitions for HP PA-RISC.
;; Copyright (C) 2005, 2007 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 nonzero only if OP is a register of mode MODE, or
;; CONST0_RTX.
(define_predicate "reg_or_0_operand"
(match_code "subreg,reg,const_int,const_double")
{
return (op == CONST0_RTX (mode) || 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);
})
;; Return 1 iff OP is an indexed memory operand.
(define_predicate "indexed_memory_operand"
(match_code "subreg,mem")
{
if (GET_MODE (op) != mode)
return 0;
/* Before reload, a (SUBREG (MEM...)) forces reloading into a register. */
if (reload_completed && GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (GET_CODE (op) != MEM || symbolic_memory_operand (op, mode))
return 0;
op = XEXP (op, 0);
return (memory_address_p (mode, op) && IS_INDEX_ADDR_P (op));
})
;; Return 1 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 1;
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:
return 0;
}
})
;; Return truth value of statement that OP is a symbolic memory
;; operand of mode MODE.
(define_predicate "symbolic_memory_operand"
(match_code "subreg,mem")
{
if (GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (GET_CODE (op) != MEM)
return 0;
op = XEXP (op, 0);
return ((GET_CODE (op) == SYMBOL_REF && !SYMBOL_REF_TLS_MODEL (op))
|| GET_CODE (op) == CONST || GET_CODE (op) == HIGH
|| GET_CODE (op) == LABEL_REF);
})
;; 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")))
;; Return 1 if the operand is a register operand or a non-symbolic
;; memory operand after 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")
{
/* Don't accept a SUBREG since it will need a reload. */
if (GET_CODE (op) == SUBREG)
return 0;
if (register_operand (op, mode))
return 1;
if (reload_completed
&& memory_operand (op, mode)
&& !symbolic_memory_operand (op, mode))
return 1;
return 0;
})
;; Return 1 if the operand is either a register, zero, or a memory
;; operand that is not symbolic.
(define_predicate "reg_or_0_or_nonsymb_mem_operand"
(match_code "subreg,reg,mem,const_int,const_double")
{
if (register_operand (op, mode))
return 1;
if (op == CONST0_RTX (mode))
return 1;
if (GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (GET_CODE (op) != MEM)
return 0;
/* 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 0;
return (!symbolic_memory_operand (op, mode)
&& memory_address_p (mode, XEXP (op, 0)));
})
;; 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 1;
if (GET_MODE (op) != mode)
return 0;
if (GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (GET_CODE (op) != MEM || symbolic_memory_operand (op, mode))
return 0;
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 1;
if (op == CONST0_RTX (mode))
return 1;
if (GET_CODE (op) == CONST_INT)
return cint_ok_for_move (INTVAL (op));
if (GET_MODE (op) != mode)
return 0;
if (GET_CODE (op) == SUBREG)
op = SUBREG_REG (op);
if (GET_CODE (op) != MEM)
return 0;
/* 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 0;
return memory_address_p (mode, XEXP (op, 0));
})
;; Accept REG and any CONST_INT that can be moved in one instruction
;; into a general register.
(define_predicate "reg_or_cint_move_operand"
(match_code "subreg,reg,const_int")
{
if (register_operand (op, mode))
return 1;
return (GET_CODE (op) == CONST_INT && cint_ok_for_move (INTVAL (op)));
})
;; TODO: Add a comment here.
(define_predicate "pic_label_operand"
(match_code "label_ref,const")
{
if (!flag_pic)
return 0;
switch (GET_CODE (op))
{
case LABEL_REF:
return 1;
case CONST:
op = XEXP (op, 0);
return (GET_CODE (XEXP (op, 0)) == LABEL_REF
&& GET_CODE (XEXP (op, 1)) == CONST_INT);
default:
return 0;
}
})
;; TODO: Add a comment here.
(define_predicate "fp_reg_operand"
(match_code "reg")
{
return reg_renumber && FP_REG_P (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 14-bit signed integers.
(define_predicate "arith_operand"
(match_code "subreg,reg,const_int")
{
return (register_operand (op, mode)
|| (GET_CODE (op) == CONST_INT && INT_14_BITS (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 11-bit signed integers.
(define_predicate "arith11_operand"
(match_code "subreg,reg,const_int")
{
return (register_operand (op, mode)
|| (GET_CODE (op) == CONST_INT && INT_11_BITS (op)));
})
;; A constant integer suitable for use in a PRE_MODIFY memory
;; reference.
(define_predicate "pre_cint_operand"
(match_code "const_int")
{
return (GET_CODE (op) == CONST_INT
&& INTVAL (op) >= -0x2000 && INTVAL (op) < 0x10);
})
;; A constant integer suitable for use in a POST_MODIFY memory
;; reference.
(define_predicate "post_cint_operand"
(match_code "const_int")
{
return (GET_CODE (op) == CONST_INT
&& INTVAL (op) < 0x2000 && INTVAL (op) >= -0x10);
})
;; TODO: Add a comment here.
(define_predicate "arith_double_operand"
(match_code "subreg,reg,const_double")
{
return (register_operand (op, mode)
|| (GET_CODE (op) == CONST_DOUBLE
&& GET_MODE (op) == mode
&& VAL_14_BITS_P (CONST_DOUBLE_LOW (op))
&& ((CONST_DOUBLE_HIGH (op) >= 0)
== ((CONST_DOUBLE_LOW (op) & 0x1000) == 0))));
})
;; 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"
(match_code "const_int,reg")
{
return ((GET_CODE (op) == CONST_INT && INT_5_BITS (op))
|| (GET_CODE (op) == REG && 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.
(define_predicate "int5_operand"
(match_code "const_int")
{
return (GET_CODE (op) == CONST_INT && INT_5_BITS (op));
})
;; Return truth value of whether OP is an integer which fits the range
;; constraining immediate operands in three-address insns.
(define_predicate "uint5_operand"
(match_code "const_int")
{
return (GET_CODE (op) == CONST_INT && INT_U5_BITS (op));
})
;; Return truth value of whether OP is an integer which fits the range
;; constraining immediate operands in three-address insns.
(define_predicate "int11_operand"
(match_code "const_int")
{
return (GET_CODE (op) == CONST_INT && INT_11_BITS (op));
})
;; Return truth value of whether OP is an integer which fits the range
;; constraining immediate operands in three-address insns.
(define_predicate "uint32_operand"
(match_code "const_int,const_double")
{
#if HOST_BITS_PER_WIDE_INT > 32
/* All allowed constants will fit a CONST_INT. */
return (GET_CODE (op) == CONST_INT
&& (INTVAL (op) >= 0 && INTVAL (op) < (HOST_WIDE_INT) 1 << 32));
#else
return (GET_CODE (op) == CONST_INT
|| (GET_CODE (op) == CONST_DOUBLE
&& CONST_DOUBLE_HIGH (op) == 0));
#endif
})
;; Return truth value of whether OP is an integer which fits the range
;; constraining immediate operands in three-address insns.
(define_predicate "arith5_operand"
(match_code "subreg,reg,const_int")
{
return register_operand (op, mode) || int5_operand (op, mode);
})
;; True iff depi or extru can be used to compute (reg & OP).
(define_predicate "and_operand"
(match_code "subreg,reg,const_int")
{
return (register_operand (op, mode)
|| (GET_CODE (op) == CONST_INT && and_mask_p (INTVAL (op))));
})
;; True iff depi can be used to compute (reg | OP).
(define_predicate "ior_operand"
(match_code "const_int")
{
return (GET_CODE (op) == CONST_INT && ior_mask_p (INTVAL (op)));
})
;; 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;
if (GET_CODE (op) != CONST_INT)
return 0;
x = INTVAL (op) >> 4;
return (x & (x + 1)) == 0;
})
;; TODO: Add a comment here.
(define_predicate "lhs_lshift_operand"
(match_code "subreg,reg,const_int")
{
return register_operand (op, mode) || lhs_lshift_cint_operand (op, mode);
})
;; TODO: Add a comment here.
(define_predicate "arith32_operand"
(match_code "subreg,reg,const_int")
{
return register_operand (op, mode) || GET_CODE (op) == CONST_INT;
})
;; TODO: Add a comment here.
(define_predicate "pc_or_label_operand"
(match_code "pc,label_ref")
{
return (GET_CODE (op) == PC || GET_CODE (op) == LABEL_REF);
})
;; TODO: Add a comment here.
(define_predicate "plus_xor_ior_operator"
(match_code "plus,xor,ior")
{
return (GET_CODE (op) == PLUS || GET_CODE (op) == XOR
|| GET_CODE (op) == IOR);
})
;; Return 1 if OP is a CONST_INT with the value 2, 4, or 8. These are
;; the valid constant for shadd instructions.
(define_predicate "shadd_operand"
(match_code "const_int")
{
return (GET_CODE (op) == CONST_INT && shadd_constant_p (INTVAL (op)));
})
;; TODO: Add a comment here.
(define_predicate "div_operand"
(match_code "reg,const_int")
{
return (mode == SImode
&& ((GET_CODE (op) == REG && REGNO (op) == 25)
|| (GET_CODE (op) == CONST_INT && INTVAL (op) > 0
&& INTVAL (op) < 16 && magic_milli[INTVAL (op)])));
})
;; Return nonzero if OP is an integer register, else return zero.
(define_predicate "ireg_operand"
(match_code "reg")
{
return (GET_CODE (op) == REG && REGNO (op) > 0 && REGNO (op) < 32);
})
;; Return 1 if 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")
{
return ((mode == VOIDmode || GET_MODE (op) == mode)
&& (GET_CODE (op) == EQ
|| GET_CODE (op) == NE
|| GET_CODE (op) == GT
|| GET_CODE (op) == GTU
|| GET_CODE (op) == GE
|| GET_CODE (op) == LT
|| GET_CODE (op) == LE
|| GET_CODE (op) == LEU));
})
;; Return 1 if OP is an operator suitable for use in a movb
;; instruction.
(define_predicate "movb_comparison_operator"
(match_code "eq,ne,lt,ge")
{
return (GET_CODE (op) == EQ || GET_CODE (op) == NE
|| GET_CODE (op) == LT || GET_CODE (op) == GE);
})