gcc/config/lm32/constraints.md

   1 ;; Constraint definitions for Lattice Mico32 architecture.
   2 ;; Contributed by Jon Beniston <jon@beniston.com>
   3 ;;
   4 ;; Copyright (C) 2009-2023 Free Software Foundation, Inc.
   5 ;;
   6 ;; This file is part of GCC.
   7 ;;
   8 ;; GCC is free software; you can redistribute it and/or modify
   9 ;; it under the terms of the GNU General Public License as published by
  10 ;; the Free Software Foundation; either version 3, or (at your option)
  11 ;; any later version.
  12 ;;
  13 ;; GCC is distributed in the hope that it will be useful,
  14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 ;; GNU General Public License for more details.
  17 ;;
  18 ;; You should have received a copy of the GNU General Public License
  19 ;; along with GCC; see the file COPYING3.  If not see
  20 ;; <http://www.gnu.org/licenses/>.
  21
  22 (define_constraint "J"
  23   "The value 0."
  24   (and (match_code "const_int")
  25        (match_test "ival == 0")))
  26
  27 (define_constraint "K"
  28   "A signed 16-bit immediate in the range -32768 to 32767."
  29   (and (match_code "const_int")
  30        (match_test "IN_RANGE (ival, -32768, 32767)")))
  31
  32 (define_constraint "L"
  33   "An unsigned 16-bit immediate in the range 0 to 65535."
  34   (and (match_code "const_int")
  35        (match_test "IN_RANGE (ival, 0, 65535)")))
  36
  37 (define_constraint "M"
  38   "The value 1."
  39   (and (match_code "const_int")
  40        (match_test "ival == 1")))
  41
  42 (define_constraint "U"
  43   "A shifted signed 16-bit constant appropriate for orhi."
  44   (and (match_code "const_int")
  45        (match_test "(ival & 0xffff) == 0
  46                     && (ival >> 31 == -1 || ival >> 31 == 0)")))
  47
  48 (define_constraint "S"
  49   "A symbol in the small data section."
  50   (match_operand 0 "no_pic_small_symbol"))
  51
  52 (define_constraint "Y"
  53   "A high part of a symbol."
  54   (and (match_code "high")
  55        (ior (ior (match_code "symbol_ref" "0")
  56                  (match_code "label_ref" "0"))
  57             (match_code "const" "0"))))