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145
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1 ;; Constraint definitions for GCN.
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2 ;; Copyright (C) 2016-2020 Free Software Foundation, Inc.
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3 ;;
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4 ;; This file is part of GCC.
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5 ;;
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6 ;; GCC is free software; you can redistribute it and/or modify
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7 ;; it under the terms of the GNU General Public License as published by
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8 ;; the Free Software Foundation; either version 3, or (at your option)
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9 ;; any later version.
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10 ;;
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11 ;; GCC is distributed in the hope that it will be useful,
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12 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 ;; GNU General Public License for more details.
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15 ;;
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16 ;; You should have received a copy of the GNU General Public License
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17 ;; along with GCC; see the file COPYING3. If not see
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18 ;; <http://www.gnu.org/licenses/>.
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19
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20 (define_constraint "I"
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21 "Inline integer constant"
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22 (and (match_code "const_int")
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23 (match_test "ival >= -16 && ival <= 64")))
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24
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25 (define_constraint "J"
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26 "Signed integer 16-bit inline constant"
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27 (and (match_code "const_int")
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28 (match_test "((unsigned HOST_WIDE_INT) ival + 0x8000) < 0x10000")))
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29
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30 (define_constraint "Kf"
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31 "Immeditate constant -1"
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32 (and (match_code "const_int")
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33 (match_test "ival == -1")))
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34
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35 (define_constraint "L"
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36 "Unsigned integer 15-bit constant"
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37 (and (match_code "const_int")
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38 (match_test "((unsigned HOST_WIDE_INT) ival) < 0x8000")))
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39
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40 (define_constraint "A"
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41 "Inline immediate parameter"
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42 (and (match_code "const_int,const_double,const_vector")
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43 (match_test "gcn_inline_constant_p (op)")))
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44
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45 (define_constraint "B"
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46 "Immediate 32-bit parameter"
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47 (and (match_code "const_int,const_double,const_vector")
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48 (match_test "gcn_constant_p (op)")))
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49
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50 (define_constraint "C"
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51 "Immediate 32-bit parameter zero-extended to 64-bits"
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52 (and (match_code "const_int,const_double,const_vector")
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53 (match_test "gcn_constant64_p (op)")))
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54
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55 (define_constraint "DA"
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56 "Immediate 64-bit parameter, low and high part match 'A'"
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57 (and (match_code "const_int,const_double,const_vector")
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58 (match_test "gcn_inline_constant64_p (op, 0)")))
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59
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60 (define_constraint "Db"
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61 "Immediate 64-bit parameter, low part matches 'B', high part matches 'A'"
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62 (and (match_code "const_int,const_double,const_vector")
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63 (match_test "gcn_inline_constant64_p (op, 1)")))
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64
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65 (define_constraint "DB"
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66 "Immediate 64-bit parameter, low and high part match 'B'"
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67 (match_code "const_int,const_double,const_vector"))
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68
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69 (define_constraint "U"
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70 "unspecified value"
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71 (match_code "unspec"))
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72
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73 (define_constraint "Y"
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74 "Symbol or label for relative calls"
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75 (match_code "symbol_ref,label_ref"))
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76
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77 (define_register_constraint "v" "VGPR_REGS"
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78 "VGPR registers")
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79
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80 (define_register_constraint "Sg" "SGPR_REGS"
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81 "SGPR registers")
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82
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83 (define_register_constraint "SD" "SGPR_DST_REGS"
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84 "registers useable as a destination of scalar operation")
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85
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86 (define_register_constraint "SS" "SGPR_SRC_REGS"
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87 "registers useable as a source of scalar operation")
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88
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89 (define_register_constraint "Sm" "SGPR_MEM_SRC_REGS"
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90 "registers useable as a source of scalar memory operation")
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91
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92 (define_register_constraint "Sv" "SGPR_VOP_SRC_REGS"
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93 "registers useable as a source of VOP3A instruction")
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94
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95 (define_register_constraint "ca" "ALL_CONDITIONAL_REGS"
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96 "SCC VCCZ or EXECZ")
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97
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98 (define_register_constraint "cs" "SCC_CONDITIONAL_REG"
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99 "SCC")
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100
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101 (define_register_constraint "cV" "VCC_CONDITIONAL_REG"
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102 "VCC")
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103
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104 (define_register_constraint "e" "EXEC_MASK_REG"
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105 "EXEC")
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106
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107 (define_special_memory_constraint "RB"
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108 "Buffer memory address to scratch memory."
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109 (and (match_code "mem")
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110 (match_test "AS_SCRATCH_P (MEM_ADDR_SPACE (op))")))
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111
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112 (define_special_memory_constraint "RF"
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113 "Buffer memory address to flat memory."
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114 (and (match_code "mem")
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115 (match_test "AS_FLAT_P (MEM_ADDR_SPACE (op))
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116 && gcn_flat_address_p (XEXP (op, 0), mode)")))
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117
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118 (define_special_memory_constraint "RS"
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119 "Buffer memory address to scalar flat memory."
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120 (and (match_code "mem")
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121 (match_test "AS_SCALAR_FLAT_P (MEM_ADDR_SPACE (op))
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122 && gcn_scalar_flat_mem_p (op)")))
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123
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124 (define_special_memory_constraint "RL"
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125 "Buffer memory address to LDS memory."
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126 (and (match_code "mem")
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127 (match_test "AS_LDS_P (MEM_ADDR_SPACE (op))")))
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128
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129 (define_special_memory_constraint "RG"
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130 "Buffer memory address to GDS memory."
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131 (and (match_code "mem")
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132 (match_test "AS_GDS_P (MEM_ADDR_SPACE (op))")))
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133
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134 (define_special_memory_constraint "RD"
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135 "Buffer memory address to GDS or LDS memory."
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136 (and (match_code "mem")
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137 (ior (match_test "AS_GDS_P (MEM_ADDR_SPACE (op))")
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138 (match_test "AS_LDS_P (MEM_ADDR_SPACE (op))"))))
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139
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140 (define_special_memory_constraint "RM"
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141 "Memory address to global (main) memory."
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142 (and (match_code "mem")
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143 (match_test "AS_GLOBAL_P (MEM_ADDR_SPACE (op))
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144 && gcn_global_address_p (XEXP (op, 0))")))
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