gcc/config/visium/constraints.md

   1 ;; Constraint definitions for Visium.
   2 ;; Copyright (C) 2006-2023 Free Software Foundation, Inc.
   3 ;;
   4 ;; This file is part of GCC.
   5 ;;
   6 ;; GCC is free software; you can redistribute it and/or modify
   7 ;; it under the terms of the GNU General Public License as published by
   8 ;; the Free Software Foundation; either version 3, or (at your option)
   9 ;; any later version.
  10 ;;
  11 ;; GCC is distributed in the hope that it will be useful,
  12 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ;; GNU General Public License for more details.
  15 ;;
  16 ;; You should have received a copy of the GNU General Public License
  17 ;; along with GCC; see the file COPYING3.  If not see
  18 ;; <http://www.gnu.org/licenses/>.
  19
  20 ;; Register constraints
  21
  22 (define_register_constraint "b" "MDB"
  23   "EAM register mdb")
  24
  25 (define_register_constraint "c" "MDC"
  26   "EAM register mdc")
  27
  28 (define_register_constraint "f" "TARGET_FPU ? FP_REGS : NO_REGS"
  29   "Floating point register")
  30
  31 (define_register_constraint "k" "SIBCALL_REGS"
  32   "Register for sibcall optimization")
  33
  34 (define_register_constraint "l" "LOW_REGS"
  35   "General register, but not r29, r30 and r31")
  36
  37 (define_register_constraint "t" "R1"
  38   "Register r1")
  39
  40 (define_register_constraint "u" "R2"
  41   "Register r2")
  42
  43 (define_register_constraint "v" "R3"
  44   "Register r3")
  45
  46 ;; Immediate integer operand constraints
  47
  48 (define_constraint "J"
  49   "Integer constant in the range 0 .. 65535 (16-bit immediate)"
  50   (and (match_code "const_int")
  51        (match_test "IN_RANGE (ival, 0, 65535)")))
  52
  53 (define_constraint "K"
  54   "Integer constant in the range 1 .. 31 (5-bit immediate)"
  55   (and (match_code "const_int")
  56        (match_test "IN_RANGE (ival, 1, 31)")))
  57
  58 (define_constraint "L"
  59   "Integer constant in the range -65535 .. -1 (16-bit negative immediate)"
  60   (and (match_code "const_int")
  61        (match_test "IN_RANGE (ival, -65535, -1)")))
  62
  63 (define_constraint "M"
  64   "Integer constant -1"
  65   (and (match_code "const_int")
  66        (match_test "ival == -1")))
  67
  68 (define_constraint "O"
  69   "Integer constant 0"
  70   (and (match_code "const_int")
  71        (match_test "ival == 0")))
  72
  73 (define_constraint "P"
  74   "Integer constant 32"
  75   (and (match_code "const_int")
  76        (match_test "ival == 32")))
  77
  78 ;; Immediate FP operand constraints
  79
  80 (define_constraint "G"
  81   "Floating-point constant 0.0"
  82   (and (match_code "const_double")
  83        (match_test "op == CONST0_RTX (mode)")))