gcc/config/v850/constraints.md

   1 ;; Constraint definitions for V850.
   2 ;; Copyright (C) 2011-2018 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 (define_register_constraint "e" "EVEN_REGS"
  21   "@internal")
  22
  23 ;; Integer constraints.
  24 (define_constraint "I"
  25   "Integer constant 0."
  26   (and (match_code "const_int")
  27        (match_test "ival == 0")))
  28
  29 (define_constraint "J"
  30   "A signed 5-bit immediate."
  31   (and (match_code "const_int")
  32        (match_test "ival >= -16 && ival <= 15")))
  33
  34 (define_constraint "K"
  35   "A signed 16-bit immediate."
  36   (and (match_code "const_int")
  37        (match_test "ival >= -32768 && ival <= 32767")))
  38
  39 (define_constraint "L"
  40   "A valid constant for a movhi instruction."
  41   (and (match_code "const_int")
  42        (ior (match_test "(ival | 0x7fff0000) == 0x7fff0000")
  43             (match_test "(ival | 0x7fff0000) + 0x10000 == 0"))))
  44
  45 (define_constraint "M"
  46   "An unsigned 16-bit immediate."
  47   (and (match_code "const_int")
  48        (match_test "ival >= 0 && ival <= 65535")))
  49
  50 (define_constraint "N"
  51   "An unsigned 5-bit immediate in shift instructions."
  52   (and (match_code "const_int")
  53        (match_test "ival >= 0 && ival <= 31")))
  54
  55 (define_constraint "O"
  56   "A signed 9-bit immediate for word multiply instructions."
  57   (and (match_code "const_int")
  58        (match_test "ival >= -255 && ival <= 255")))
  59
  60 (define_constraint "P"
  61   "@internal"
  62   (and (match_code "const_int")
  63        (match_test "0")))
  64
  65 ;; Floating-point constraints.
  66 (define_constraint "G"
  67   "A zero of some form."
  68   (and (match_code "const_double")
  69        (ior (match_test "GET_MODE_CLASS (mode) == MODE_FLOAT")
  70             (match_test "GET_MODE_CLASS (mode) == MODE_INT"))
  71        (match_test "op == CONST0_RTX (mode)")))
  72
  73 (define_constraint "H"
  74   "@internal"
  75   (and (match_code "const_double")
  76        (match_test "0")))
  77
  78 ;;; Extra constraints.
  79 (define_memory_constraint "Q"
  80   "A memory address that does not contain a symbol address."
  81   (and (match_code "mem")
  82        (match_test "ep_memory_operand (op, mode, FALSE)")))
  83
  84 (define_constraint "R"
  85   "@internal"
  86   (match_test "special_symbolref_operand (op, VOIDmode)"))
  87
  88 (define_constraint "S"
  89   "@internal"
  90   (and (match_code "symbol_ref")
  91        (match_test "!SYMBOL_REF_ZDA_P (op)")))
  92
  93 (define_constraint "T"
  94   "@internal"
  95   (match_test "ep_memory_operand (op, mode, TRUE)"))
  96
  97 (define_constraint "U"
  98   "@internal"
  99   (ior (and (match_code "symbol_ref")
 100             (match_test "SYMBOL_REF_ZDA_P (op)"))
 101        (and (match_code "const")
 102             (match_test "GET_CODE (XEXP (op, 0)) == PLUS")
 103             (match_test "GET_CODE (XEXP (XEXP (op, 0), 0)) == SYMBOL_REF")
 104             (match_test "SYMBOL_REF_ZDA_P (XEXP (XEXP (op, 0), 0))"))))
 105
 106 (define_constraint "W"
 107   "@internal"
 108   (match_test "disp23_operand (op, VOIDmode)"))