;; Constraint definitions for DEC Alpha.
|
;; Constraint definitions for DEC Alpha.
|
;; Copyright (C) 2007 Free Software Foundation, Inc.
|
;; Copyright (C) 2007 Free Software Foundation, Inc.
|
;;
|
;;
|
;; This file is part of GCC.
|
;; This file is part of GCC.
|
;;
|
;;
|
;; GCC is free software; you can redistribute it and/or modify
|
;; GCC is free software; you can redistribute it and/or modify
|
;; it under the terms of the GNU General Public License as published by
|
;; it under the terms of the GNU General Public License as published by
|
;; the Free Software Foundation; either version 3, or (at your option)
|
;; the Free Software Foundation; either version 3, or (at your option)
|
;; any later version.
|
;; any later version.
|
;;
|
;;
|
;; GCC is distributed in the hope that it will be useful,
|
;; GCC is distributed in the hope that it will be useful,
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
;; GNU General Public License for more details.
|
;; GNU General Public License for more details.
|
;;
|
;;
|
;; You should have received a copy of the GNU General Public License
|
;; You should have received a copy of the GNU General Public License
|
;; along with GCC; see the file COPYING3. If not see
|
;; along with GCC; see the file COPYING3. If not see
|
;; .
|
;; .
|
|
|
;;; Unused letters:
|
;;; Unused letters:
|
;;; ABCDEF V YZ
|
;;; ABCDEF V YZ
|
;;; de ghijklmnopq stu wxyz
|
;;; de ghijklmnopq stu wxyz
|
|
|
;; Integer register constraints.
|
;; Integer register constraints.
|
|
|
(define_register_constraint "a" "R24_REG"
|
(define_register_constraint "a" "R24_REG"
|
"General register 24, input to division routine")
|
"General register 24, input to division routine")
|
|
|
(define_register_constraint "b" "R25_REG"
|
(define_register_constraint "b" "R25_REG"
|
"General register 24, input to division routine")
|
"General register 24, input to division routine")
|
|
|
(define_register_constraint "c" "R27_REG"
|
(define_register_constraint "c" "R27_REG"
|
"General register 27, function call address")
|
"General register 27, function call address")
|
|
|
(define_register_constraint "f" "FLOAT_REGS"
|
(define_register_constraint "f" "FLOAT_REGS"
|
"Any floating-point register")
|
"Any floating-point register")
|
|
|
(define_register_constraint "v" "R0_REG"
|
(define_register_constraint "v" "R0_REG"
|
"General register 0, function value return address")
|
"General register 0, function value return address")
|
|
|
;; Integer constant constraints.
|
;; Integer constant constraints.
|
(define_constraint "I"
|
(define_constraint "I"
|
"An unsigned 8 bit constant"
|
"An unsigned 8 bit constant"
|
(and (match_code "const_int")
|
(and (match_code "const_int")
|
(match_test "IN_RANGE (ival, 0, 255)")))
|
(match_test "IN_RANGE (ival, 0, 255)")))
|
|
|
(define_constraint "J"
|
(define_constraint "J"
|
"The constant zero"
|
"The constant zero"
|
(and (match_code "const_int")
|
(and (match_code "const_int")
|
(match_test "ival == 0")))
|
(match_test "ival == 0")))
|
|
|
(define_constraint "K"
|
(define_constraint "K"
|
"Signed 16-bit integer constant"
|
"Signed 16-bit integer constant"
|
(and (match_code "const_int")
|
(and (match_code "const_int")
|
(match_test "IN_RANGE (ival, -32768, 32767)")))
|
(match_test "IN_RANGE (ival, -32768, 32767)")))
|
|
|
(define_constraint "L"
|
(define_constraint "L"
|
"A shifted signed 16-bit constant appropriate for LDAH"
|
"A shifted signed 16-bit constant appropriate for LDAH"
|
(and (match_code "const_int")
|
(and (match_code "const_int")
|
(match_test "(ival & 0xffff) == 0
|
(match_test "(ival & 0xffff) == 0
|
&& (ival >> 31 == -1 || ival >> 31 == 0)")))
|
&& (ival >> 31 == -1 || ival >> 31 == 0)")))
|
|
|
(define_constraint "M"
|
(define_constraint "M"
|
"A valid operand of a ZAP insn"
|
"A valid operand of a ZAP insn"
|
(and (match_code "const_int")
|
(and (match_code "const_int")
|
(match_test "zap_mask (ival) != 0")))
|
(match_test "zap_mask (ival) != 0")))
|
|
|
(define_constraint "N"
|
(define_constraint "N"
|
"A complemented unsigned 8-bit constant"
|
"A complemented unsigned 8-bit constant"
|
(and (match_code "const_int")
|
(and (match_code "const_int")
|
(match_test "IN_RANGE (~ival, 0, 255)")))
|
(match_test "IN_RANGE (~ival, 0, 255)")))
|
|
|
(define_constraint "O"
|
(define_constraint "O"
|
"A negated unsigned 8-bit constant"
|
"A negated unsigned 8-bit constant"
|
(and (match_code "const_int")
|
(and (match_code "const_int")
|
(match_test "IN_RANGE (-ival, 0, 255)")))
|
(match_test "IN_RANGE (-ival, 0, 255)")))
|
|
|
(define_constraint "P"
|
(define_constraint "P"
|
"The constant 1, 2 or 3"
|
"The constant 1, 2 or 3"
|
(and (match_code "const_int")
|
(and (match_code "const_int")
|
(match_test "ival == 1 || ival == 2 || ival == 3")))
|
(match_test "ival == 1 || ival == 2 || ival == 3")))
|
|
|
(define_constraint "H"
|
(define_constraint "H"
|
"A valid operand of a ZAP insn, when building with 32-bit HOST_WIDE_INT"
|
"A valid operand of a ZAP insn, when building with 32-bit HOST_WIDE_INT"
|
(and (match_code "const_double")
|
(and (match_code "const_double")
|
(match_test "mode == VOIDmode && zap_mask (hval) && zap_mask (lval)")))
|
(match_test "mode == VOIDmode && zap_mask (hval) && zap_mask (lval)")))
|
|
|
;; Floating-point constant constraints.
|
;; Floating-point constant constraints.
|
(define_constraint "G"
|
(define_constraint "G"
|
"The floating point zero constant"
|
"The floating point zero constant"
|
(and (match_code "const_double")
|
(and (match_code "const_double")
|
(match_test "GET_MODE_CLASS (mode) == MODE_FLOAT
|
(match_test "GET_MODE_CLASS (mode) == MODE_FLOAT
|
&& op == CONST0_RTX (mode)")))
|
&& op == CONST0_RTX (mode)")))
|
|
|
;; "Extra" constraints.
|
;; "Extra" constraints.
|
(define_constraint "Q"
|
(define_constraint "Q"
|
"@internal A normal_memory_operand"
|
"@internal A normal_memory_operand"
|
(match_operand 0 "normal_memory_operand"))
|
(match_operand 0 "normal_memory_operand"))
|
|
|
(define_constraint "R"
|
(define_constraint "R"
|
"@internal A direct_call_operand"
|
"@internal A direct_call_operand"
|
(match_operand:DI 0 "direct_call_operand"))
|
(match_operand:DI 0 "direct_call_operand"))
|
|
|
(define_constraint "S"
|
(define_constraint "S"
|
"An unsigned 6-bit constant"
|
"An unsigned 6-bit constant"
|
(and (match_code "const_int")
|
(and (match_code "const_int")
|
(match_test "IN_RANGE (ival, 0, 63)")))
|
(match_test "IN_RANGE (ival, 0, 63)")))
|
|
|
(define_constraint "T"
|
(define_constraint "T"
|
"@internal A high-part symbol"
|
"@internal A high-part symbol"
|
(match_code "high"))
|
(match_code "high"))
|
|
|
(define_constraint "U"
|
(define_constraint "U"
|
"@internal A UNICOSMK symbol"
|
"@internal A UNICOSMK symbol"
|
(and (match_test "TARGET_ABI_UNICOSMK")
|
(and (match_test "TARGET_ABI_UNICOSMK")
|
(match_operand 0 "symbolic_operand")))
|
(match_operand 0 "symbolic_operand")))
|
|
|
(define_constraint "W"
|
(define_constraint "W"
|
"A vector zero constant"
|
"A vector zero constant"
|
(and (match_code "const_vector")
|
(and (match_code "const_vector")
|
(match_test "op == CONST0_RTX (mode)")))
|
(match_test "op == CONST0_RTX (mode)")))
|
|
|
