github.com/rakyll/go@v0.0.0-20170216000551-64c02460d703/src/cmd/compile/internal/x86/prog.go (about) 1 // Copyright 2013 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package x86 6 7 import ( 8 "cmd/compile/internal/gc" 9 "cmd/internal/obj" 10 "cmd/internal/obj/x86" 11 ) 12 13 const ( 14 LeftRdwr uint32 = gc.LeftRead | gc.LeftWrite 15 RightRdwr uint32 = gc.RightRead | gc.RightWrite 16 ) 17 18 // This table gives the basic information about instruction 19 // generated by the compiler and processed in the optimizer. 20 // See opt.h for bit definitions. 21 // 22 // Instructions not generated need not be listed. 23 // As an exception to that rule, we typically write down all the 24 // size variants of an operation even if we just use a subset. 25 // 26 // The table is formatted for 8-space tabs. 27 var progtable = [x86.ALAST & obj.AMask]gc.ProgInfo{ 28 obj.ATEXT: {Flags: gc.Pseudo}, 29 obj.AFUNCDATA: {Flags: gc.Pseudo}, 30 obj.APCDATA: {Flags: gc.Pseudo}, 31 obj.AUNDEF: {Flags: gc.Break}, 32 obj.AUSEFIELD: {Flags: gc.OK}, 33 obj.AVARDEF: {Flags: gc.Pseudo | gc.RightWrite}, 34 obj.AVARKILL: {Flags: gc.Pseudo | gc.RightWrite}, 35 obj.AVARLIVE: {Flags: gc.Pseudo | gc.LeftRead}, 36 37 // NOP is an internal no-op that also stands 38 // for USED and SET annotations, not the Intel opcode. 39 obj.ANOP: {Flags: gc.LeftRead | gc.RightWrite}, 40 x86.AADCL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry}, 41 x86.AADCW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry}, 42 x86.AADDB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry}, 43 x86.AADDL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry}, 44 x86.AADDW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry}, 45 x86.AADDSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr}, 46 x86.AADDSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | RightRdwr}, 47 x86.AANDB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry}, 48 x86.AANDL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry}, 49 x86.AANDW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry}, 50 obj.ACALL: {Flags: gc.RightAddr | gc.Call | gc.KillCarry}, 51 x86.ACDQ & obj.AMask: {Flags: gc.OK}, 52 x86.ACWD & obj.AMask: {Flags: gc.OK}, 53 x86.ACLD & obj.AMask: {Flags: gc.OK}, 54 x86.ASTD & obj.AMask: {Flags: gc.OK}, 55 x86.ACMPB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry}, 56 x86.ACMPL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry}, 57 x86.ACMPW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry}, 58 x86.ACOMISD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightRead | gc.SetCarry}, 59 x86.ACOMISS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightRead | gc.SetCarry}, 60 x86.ACVTSD2SL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv}, 61 x86.ACVTSD2SS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv}, 62 x86.ACVTSL2SD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv}, 63 x86.ACVTSL2SS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv}, 64 x86.ACVTSS2SD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv}, 65 x86.ACVTSS2SL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv}, 66 x86.ACVTTSD2SL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv}, 67 x86.ACVTTSS2SL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv}, 68 x86.ADECB & obj.AMask: {Flags: gc.SizeB | RightRdwr}, 69 x86.ADECL & obj.AMask: {Flags: gc.SizeL | RightRdwr}, 70 x86.ADECW & obj.AMask: {Flags: gc.SizeW | RightRdwr}, 71 x86.ADIVB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.SetCarry}, 72 x86.ADIVL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.SetCarry}, 73 x86.ADIVW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.SetCarry}, 74 x86.ADIVSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr}, 75 x86.ADIVSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | RightRdwr}, 76 x86.AFLDCW & obj.AMask: {Flags: gc.SizeW | gc.LeftAddr}, 77 x86.AFSTCW & obj.AMask: {Flags: gc.SizeW | gc.RightAddr}, 78 x86.AFSTSW & obj.AMask: {Flags: gc.SizeW | gc.RightAddr | gc.RightWrite}, 79 x86.AFADDD & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 80 x86.AFADDDP & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 81 x86.AFADDF & obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | RightRdwr}, 82 x86.AFCOMD & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | gc.RightRead}, 83 x86.AFCOMDP & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | gc.RightRead}, 84 x86.AFCOMDPP & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | gc.RightRead}, 85 x86.AFCOMF & obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | gc.RightRead}, 86 x86.AFCOMFP & obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | gc.RightRead}, 87 // NOTE(khr): don't use FUCOMI* instructions, not available 88 // on Pentium MMX. See issue 13923. 89 //x86.AFUCOMIP&obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | gc.RightRead}, 90 x86.AFUCOMP & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightRead}, 91 x86.AFUCOMPP & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightRead}, 92 x86.AFCHS & obj.AMask: {Flags: gc.SizeD | RightRdwr}, // also SizeF 93 94 x86.AFDIVDP & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 95 x86.AFDIVF & obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | RightRdwr}, 96 x86.AFDIVD & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 97 x86.AFDIVRDP & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 98 x86.AFDIVRF & obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | RightRdwr}, 99 x86.AFDIVRD & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 100 x86.AFXCHD & obj.AMask: {Flags: gc.SizeD | LeftRdwr | RightRdwr}, 101 x86.AFSUBD & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 102 x86.AFSUBDP & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 103 x86.AFSUBF & obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | RightRdwr}, 104 x86.AFSUBRD & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 105 x86.AFSUBRDP & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 106 x86.AFSUBRF & obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | RightRdwr}, 107 x86.AFMOVD & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | gc.RightWrite}, 108 x86.AFMOVF & obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | gc.RightWrite}, 109 x86.AFMOVL & obj.AMask: {Flags: gc.SizeL | gc.LeftAddr | gc.RightWrite}, 110 x86.AFMOVW & obj.AMask: {Flags: gc.SizeW | gc.LeftAddr | gc.RightWrite}, 111 x86.AFMOVV & obj.AMask: {Flags: gc.SizeQ | gc.LeftAddr | gc.RightWrite}, 112 113 // These instructions are marked as RightAddr 114 // so that the register optimizer does not try to replace the 115 // memory references with integer register references. 116 // But they do not use the previous value at the address, so 117 // we also mark them RightWrite. 118 x86.AFMOVDP & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.RightAddr}, 119 x86.AFMOVFP & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.RightAddr}, 120 x86.AFMOVLP & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.RightAddr}, 121 x86.AFMOVWP & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.RightAddr}, 122 x86.AFMOVVP & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.RightAddr}, 123 x86.AFMULD & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 124 x86.AFMULDP & obj.AMask: {Flags: gc.SizeD | gc.LeftAddr | RightRdwr}, 125 x86.AFMULF & obj.AMask: {Flags: gc.SizeF | gc.LeftAddr | RightRdwr}, 126 x86.AIDIVB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.SetCarry}, 127 x86.AIDIVL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.SetCarry}, 128 x86.AIDIVW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.SetCarry}, 129 x86.AIMULB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.SetCarry}, 130 x86.AIMULL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.ImulAXDX | gc.SetCarry}, 131 x86.AIMULW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.ImulAXDX | gc.SetCarry}, 132 x86.AINCB & obj.AMask: {Flags: gc.SizeB | RightRdwr}, 133 x86.AINCL & obj.AMask: {Flags: gc.SizeL | RightRdwr}, 134 x86.AINCW & obj.AMask: {Flags: gc.SizeW | RightRdwr}, 135 x86.AJCC & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 136 x86.AJCS & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 137 x86.AJEQ & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 138 x86.AJGE & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 139 x86.AJGT & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 140 x86.AJHI & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 141 x86.AJLE & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 142 x86.AJLS & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 143 x86.AJLT & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 144 x86.AJMI & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 145 x86.AJNE & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 146 x86.AJOC & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 147 x86.AJOS & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 148 x86.AJPC & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 149 x86.AJPL & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 150 x86.AJPS & obj.AMask: {Flags: gc.Cjmp | gc.UseCarry}, 151 obj.AJMP: {Flags: gc.Jump | gc.Break | gc.KillCarry}, 152 x86.ALEAW & obj.AMask: {Flags: gc.LeftAddr | gc.RightWrite}, 153 x86.ALEAL & obj.AMask: {Flags: gc.LeftAddr | gc.RightWrite}, 154 x86.AMOVBLSX & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv}, 155 x86.AMOVBLZX & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv}, 156 x86.AMOVBWSX & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv}, 157 x86.AMOVBWZX & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv}, 158 x86.AMOVWLSX & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv}, 159 x86.AMOVWLZX & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv}, 160 x86.AMOVB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move}, 161 x86.AMOVL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move}, 162 x86.AMOVW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move}, 163 x86.AMOVSB & obj.AMask: {Flags: gc.OK}, 164 x86.AMOVSL & obj.AMask: {Flags: gc.OK}, 165 x86.AMOVSW & obj.AMask: {Flags: gc.OK}, 166 obj.ADUFFCOPY: {Flags: gc.OK}, 167 x86.AMOVSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move}, 168 x86.AMOVSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Move}, 169 170 // We use MOVAPD as a faster synonym for MOVSD. 171 x86.AMOVAPD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move}, 172 x86.AMULB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.SetCarry}, 173 x86.AMULL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.SetCarry}, 174 x86.AMULW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.SetCarry}, 175 x86.AMULSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr}, 176 x86.AMULSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | RightRdwr}, 177 x86.ANEGB & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.SetCarry}, 178 x86.ANEGL & obj.AMask: {Flags: gc.SizeL | RightRdwr | gc.SetCarry}, 179 x86.ANEGW & obj.AMask: {Flags: gc.SizeW | RightRdwr | gc.SetCarry}, 180 x86.ANOTB & obj.AMask: {Flags: gc.SizeB | RightRdwr}, 181 x86.ANOTL & obj.AMask: {Flags: gc.SizeL | RightRdwr}, 182 x86.ANOTW & obj.AMask: {Flags: gc.SizeW | RightRdwr}, 183 x86.AORB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry}, 184 x86.AORL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry}, 185 x86.AORW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry}, 186 x86.APOPL & obj.AMask: {Flags: gc.SizeL | gc.RightWrite}, 187 x86.APUSHL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead}, 188 x86.APXOR & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr}, 189 x86.ARCLB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry}, 190 x86.ARCLL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry}, 191 x86.ARCLW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry}, 192 x86.ARCRB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry}, 193 x86.ARCRL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry}, 194 x86.ARCRW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry}, 195 x86.AREP & obj.AMask: {Flags: gc.OK}, 196 x86.AREPN & obj.AMask: {Flags: gc.OK}, 197 obj.ARET: {Flags: gc.Break | gc.KillCarry}, 198 x86.AROLB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 199 x86.AROLL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 200 x86.AROLW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 201 x86.ARORB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 202 x86.ARORL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 203 x86.ARORW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 204 x86.ASAHF & obj.AMask: {Flags: gc.OK}, 205 x86.ASALB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 206 x86.ASALL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 207 x86.ASALW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 208 x86.ASARB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 209 x86.ASARL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 210 x86.ASARW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 211 x86.ASBBB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry}, 212 x86.ASBBL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry}, 213 x86.ASBBW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry}, 214 x86.ASETCC & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 215 x86.ASETCS & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 216 x86.ASETEQ & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 217 x86.ASETGE & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 218 x86.ASETGT & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 219 x86.ASETHI & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 220 x86.ASETLE & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 221 x86.ASETLS & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 222 x86.ASETLT & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 223 x86.ASETMI & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 224 x86.ASETNE & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 225 x86.ASETOC & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 226 x86.ASETOS & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 227 x86.ASETPC & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 228 x86.ASETPL & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 229 x86.ASETPS & obj.AMask: {Flags: gc.SizeB | RightRdwr | gc.UseCarry}, 230 x86.ASHLB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 231 x86.ASHLL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 232 x86.ASHLW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 233 x86.ASHRB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 234 x86.ASHRL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 235 x86.ASHRW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry}, 236 x86.ASTOSB & obj.AMask: {Flags: gc.OK}, 237 x86.ASTOSL & obj.AMask: {Flags: gc.OK}, 238 x86.ASTOSW & obj.AMask: {Flags: gc.OK}, 239 obj.ADUFFZERO: {Flags: gc.OK}, 240 x86.ASUBB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry}, 241 x86.ASUBL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry}, 242 x86.ASUBW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry}, 243 x86.ASUBSD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | RightRdwr}, 244 x86.ASUBSS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | RightRdwr}, 245 x86.ATESTB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry}, 246 x86.ATESTL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry}, 247 x86.ATESTW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry}, 248 x86.AUCOMISD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightRead}, 249 x86.AUCOMISS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightRead}, 250 x86.AXCHGB & obj.AMask: {Flags: gc.SizeB | LeftRdwr | RightRdwr}, 251 x86.AXCHGL & obj.AMask: {Flags: gc.SizeL | LeftRdwr | RightRdwr}, 252 x86.AXCHGW & obj.AMask: {Flags: gc.SizeW | LeftRdwr | RightRdwr}, 253 x86.AXORB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry}, 254 x86.AXORL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry}, 255 x86.AXORW & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry}, 256 } 257 258 func proginfo(p *obj.Prog) gc.ProgInfo { 259 info := progtable[p.As&obj.AMask] 260 if info.Flags == 0 { 261 gc.Fatalf("unknown instruction %v", p) 262 } 263 264 if info.Flags&gc.ImulAXDX != 0 && p.To.Type != obj.TYPE_NONE { 265 info.Flags |= RightRdwr 266 } 267 268 return info 269 }