Mercurial > hg > CbC > CbC_gcc
diff gcc/config/stormy16/constraints.md @ 68:561a7518be6b
update gcc-4.6
author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Sun, 21 Aug 2011 07:07:55 +0900 |
parents | |
children | 04ced10e8804 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/config/stormy16/constraints.md Sun Aug 21 07:07:55 2011 +0900 @@ -0,0 +1,119 @@ +;; Constraint definitions for XSTORMY16. +;; Copyright (C) 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/>. + +;; Register constraints. +(define_register_constraint "a" "R0_REGS" + "@internal") + +(define_register_constraint "b" "R1_REGS" + "@internal") + +(define_register_constraint "c" "R2_REGS" + "@internal") + +(define_register_constraint "d" "R8_REGS" + "@internal") + +(define_register_constraint "e" "EIGHT_REGS" + "@internal") + +(define_register_constraint "t" "TWO_REGS" + "@internal") + +(define_register_constraint "z" "ICALL_REGS" + "@internal") + +;; Integer constraints. +(define_constraint "I" + "An integer between 0 and 3." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, 0, 3)"))) + +(define_constraint "J" + "A power of two." + (and (match_code "const_int") + (match_test "exact_log2 (ival) != -1"))) + +(define_constraint "K" + "A power of two when inverted." + (and (match_code "const_int") + (match_test "exact_log2 (~ival) != -1"))) + +(define_constraint "L" + "An 8-bit unsigned integer." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, 0, 255)"))) + +(define_constraint "M" + "An integer between -255 and 0." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, -255, 0)"))) + +(define_constraint "N" + "An integer between -3 and 0." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, -3, 0)"))) + +(define_constraint "O" + "An integer between 1 and 4." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, 1, 4)"))) + +(define_constraint "P" + "An integer between -4 and -1." + (and (match_code "const_int") + (match_test "IN_RANGE (ival, -4, -1)"))) + +;; Extra constraints. +(define_constraint "Q" + "A register push operation." + (and (match_code "mem") + (match_code "post_inc" "0") + (match_test "XEXP (XEXP (op, 0), 0) == stack_pointer_rtx"))) + +(define_constraint "R" + "A register pop operation." + (and (match_code "mem") + (match_code "pre_dec" "0") + (match_test "XEXP (XEXP (op, 0), 0) == stack_pointer_rtx"))) + +(define_constraint "S" + "An immediate memory address." + (and (match_code "mem") + (match_code "const_int" "0") + (match_test "xstormy16_legitimate_address_p (VOIDmode, XEXP (op, 0), false)"))) + +(define_constraint "T" + "@internal" + ;; For Rx; not implemented yet. + (match_test "0")) + +(define_constraint "U" + "An integer not between 2 and 15." + (and (match_code "const_int") + (match_test "!IN_RANGE (ival, 2, 15)"))) + +(define_constraint "W" + "@internal" + (match_operand 0 "xstormy16_below100_operand")) + +(define_constraint "Z" + "Zero." + (and (match_code "const_int") + (match_test "ival == 0"))) \ No newline at end of file