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annotate gcc/config/rx/constraints.md @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
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1 ;; Constraint definitions for Renesas RX.
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2 ;; Copyright (C) 2008-2018 Free Software Foundation, Inc.
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3 ;; Contributed by Red Hat.
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4 ;;
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5 ;; This file is part of GCC.
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6 ;;
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7 ;; GCC is free software; you can redistribute it and/or modify
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8 ;; it under the terms of the GNU General Public License as published by
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9 ;; the Free Software Foundation; either version 3, or (at your option)
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10 ;; any later version.
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11 ;;
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12 ;; GCC is distributed in the hope that it will be useful,
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13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 ;; GNU General Public License for more details.
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16 ;;
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17 ;; You should have received a copy of the GNU General Public License
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18 ;; along with GCC; see the file COPYING3. If not see
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19 ;; <http://www.gnu.org/licenses/>.
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20
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21
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22 (define_constraint "Symbol"
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23 "@internal Constraint on the type of rtx allowed in call insns"
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24 (match_test "GET_CODE (op) == SYMBOL_REF")
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25 )
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26
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27
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28 (define_constraint "Int08"
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29 "@internal A signed or unsigned 8-bit immediate value"
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30 (and (match_code "const_int")
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31 (match_test "IN_RANGE (ival, (HOST_WIDE_INT_M1U << 8), (1 << 8) - 1)")
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32 )
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33 )
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34
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35 (define_constraint "Sint08"
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36 "@internal A signed 8-bit immediate value"
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37 (and (match_code "const_int")
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38 (match_test "IN_RANGE (ival, (HOST_WIDE_INT_M1U << 7), (1 << 7) - 1)")
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39 )
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41
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42 (define_constraint "Sint16"
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43 "@internal A signed 16-bit immediate value"
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44 (and (match_code "const_int")
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45 (match_test "IN_RANGE (ival, (HOST_WIDE_INT_M1U << 15), (1 << 15) - 1)")
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48
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49 (define_constraint "Sint24"
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50 "@internal A signed 24-bit immediate value"
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51 (and (match_code "const_int")
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52 (match_test "IN_RANGE (ival, (HOST_WIDE_INT_M1U << 23), (1 << 23) - 1)")
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53 )
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54 )
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55
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56 ;; This constraint is used by the SUBSI3 pattern because the
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57 ;; RX SUB instruction can only take a 4-bit unsigned integer
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58 ;; value. Also used by the MVTIPL instruction.
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59 (define_constraint "Uint04"
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60 "@internal An unsigned 4-bit immediate value"
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61 (and (match_code "const_int")
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62 (match_test "IN_RANGE (ival, 0, 15)")
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63 )
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64 )
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65
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66 (define_constraint "NEGint4"
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67 "@internal An signed 4-bit negative immediate value"
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68 (and (match_code "const_int")
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69 (match_test "IN_RANGE (ival, -15, -1)")
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70 )
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71 )
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72
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73 ;; This is used in arithmetic and logic instructions for
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74 ;; a source operand that lies in memory and which satisfies
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75 ;; rx_restricted_memory_address().
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76
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77 (define_memory_constraint "Q"
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78 "A MEM which only uses REG or REG+INT addressing."
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79 (and (match_code "mem")
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80 (ior (match_code "reg" "0")
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81 (and (match_code "plus" "0")
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82 (and (match_code "reg,subreg" "00")
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83 (match_code "const_int" "01")
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84 )
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85 )
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86 )
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87 )
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111
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89
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90 (define_constraint "Rpid"
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91 "A MEM to a PID variable"
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92 (and (match_code "mem")
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93 (and (match_code "plus" "0")
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94 (and (match_code "reg,subreg" "00")
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95 (match_code "unspec" "01")
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96 )
kono
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97 )
kono
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98 )
kono
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99 )
kono
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100
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101 (define_constraint "Rpda"
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102 "An address to a PID variable"
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103 (and (match_code "plus" "")
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104 (and (match_code "reg,subreg" "0")
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105 (match_code "unspec" "1")
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106 )
kono
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107 )
kono
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108 )
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109
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110 (define_constraint "CALL_OP_SYMBOL_REF"
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111 "constraint for call instructions using symbol ref"
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112 (and (match_test "!TARGET_JSR")
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113 (match_code "symbol_ref"))
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114 )