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Diffstat (limited to 'gcc/config/stormy16/constraints.md')
| -rw-r--r-- | gcc/config/stormy16/constraints.md | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/gcc/config/stormy16/constraints.md b/gcc/config/stormy16/constraints.md new file mode 100644 index 000000000..5ad17bdbf --- /dev/null +++ b/gcc/config/stormy16/constraints.md @@ -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")))
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