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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/config/m32r/constraints.md | |
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Diffstat (limited to 'gcc/config/m32r/constraints.md')
-rw-r--r-- | gcc/config/m32r/constraints.md | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/gcc/config/m32r/constraints.md b/gcc/config/m32r/constraints.md new file mode 100644 index 000000000..350d48407 --- /dev/null +++ b/gcc/config/m32r/constraints.md @@ -0,0 +1,147 @@ +;; Constraint definitions for Renesas M32R cpu for GNU C compiler +;; Copyright (C) 2007, 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/>. + + +;; The letters I, J, K, L, M, N, O, P in a register constraint string +;; can be used to stand for particular ranges of immediate operands. +;; The letters Q, R, S, T, U are used to segregate specific types of +;; operands, usually memory references, for the target machine. +;; +;; I is used for 8-bit signed immediates. +;; J is used for 16-bit signed immediates. +;; K is used for 16-bit unsigned immediates. +;; L is used for 16-bit immediates left shifted by 16 (sign ???). +;; M is used for 24-bit unsigned immediates. +;; N is used for 8-bit signed immediates for compares +;; (values in the range -127 to +128). +;; O is used for 5-bit unsigned immediates (shift count). +;; P is used for 16-bit signed immediates for compares +;; (values in the range -32767 to +32768). +;; +;; Q is for symbolic addresses loadable with ld24. +;; R is for symbolic addresses when ld24 can't be used. +;; S is for stores with pre {inc,dec}rement +;; T is for indirect of a pointer. +;; U is for loads with post increment. +;; W is used for an immediate value of 0. +;; +;; Register constraints + +(define_register_constraint "a" "ACCUM_REGS" + "@internal") + +(define_register_constraint "c" "CARRY_REG" + "@internal") + +;; Integer constraints +(define_constraint "I" + "8-bit signed immediate." + (and (match_code "const_int") + (match_test "ival >= -0x80 && ival <= 0x7f"))) + +(define_constraint "J" + "16-bit signed immediate." + (and (match_code "const_int") + (match_test "ival >= -0x8000 && ival <= 0x7fff"))) + +(define_constraint "K" + "16-bit unsigned immediate." + (and (match_code "const_int") + (match_test "(unsigned HOST_WIDE_INT) ival <= 0x0000ffff"))) + +(define_constraint "L" + "16-bit signed immediate left shifted by 16." + (and (match_code "const_int") + (match_test "(ival & 0xffff) == 0") + (match_test "(ival >> 16) >= -0x8000 && (ival >> 16) <= 0x7fff"))) + +(define_constraint "M" + "24-bit unsigned immediate." + (and (match_code "const_int") + (match_test "(unsigned HOST_WIDE_INT) ival <= 0x00ffffff"))) + +(define_constraint "N" + "8-bit signed immediate for compare." + (and (match_code "const_int") + (match_test "ival >= -127 && ival <= 128"))) + +(define_constraint "O" + "5-bit unsigned immediate." + (and (match_code "const_int") + (match_test "ival >= 0 && ival < 32"))) + +(define_constraint "P" + "16-bit signed immediate for compare." + (and (match_code "const_int") + (match_test "ival >= -0x7fff && ival <= 0x8000"))) + +;; Floating-point constraints +(define_constraint "G" + "Double constant loadable with 2 ldi insns." + (and (match_code "const_double") + (match_test "easy_di_const (op)"))) + +(define_constraint "H" + "Double constant loadable with movdf." + (and (match_code "const_double") + (match_test "easy_df_const (op)"))) + +;; Extra constraints +(define_constraint "Q" + "A symbolic address loadable when ld24." + (ior (and (match_test "TARGET_ADDR24") + (match_test "GET_CODE (op) == LABEL_REF")) + (match_test "addr24_operand (op, VOIDmode)"))) + +(define_constraint "R" + "A symbolic address loadable with ld24 can't be used." + (ior (and (match_test "TARGET_ADDR32") + (match_test "GET_CODE (op) == LABEL_REF")) + (match_test "addr32_operand (op, VOIDmode)"))) + +(define_constraint "S" + "A store with pre {inc,dec}rement." + (and (match_code "mem") + (match_test "mode == SImode || mode == SFmode") + (match_code "pre_inc,pre_dec" "0") + (match_code "reg" "00") + (match_test "GPR_P (REGNO (XEXP (XEXP (op, 0), 0))) + || REGNO (XEXP (XEXP (op, 0), 0)) == ARG_POINTER_REGNUM + || ! HARD_REGISTER_P (XEXP (XEXP (op, 0), 0))"))) + +(define_constraint "T" + "An indirect of a pointer." + (and (match_code "mem") + (match_test "memreg_operand (op, GET_MODE (op))"))) + +(define_constraint "U" + "A load with post increment." + (and (match_code "mem") + (match_test "mode == SImode || mode == SFmode") + (match_code "post_inc" "0") + (match_code "reg" "00") + (match_test "GPR_P (REGNO (XEXP (XEXP (op, 0), 0))) + || REGNO (XEXP (XEXP (op, 0), 0)) == ARG_POINTER_REGNUM + || ! HARD_REGISTER_P (XEXP (XEXP (op, 0), 0))"))) + +(define_constraint "W" + "zero immediate." + (and (match_code "const_int") + (match_test "ival == 0"))) + |