// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package main import ( "cmd/internal/gc" "cmd/internal/obj" "cmd/internal/obj/x86" ) const ( LeftRdwr uint32 = gc.LeftRead | gc.LeftWrite RightRdwr uint32 = gc.RightRead | gc.RightWrite ) // This table gives the basic information about instruction // generated by the compiler and processed in the optimizer. // See opt.h for bit definitions. // // Instructions not generated need not be listed. // As an exception to that rule, we typically write down all the // size variants of an operation even if we just use a subset. // // The table is formatted for 8-space tabs. var progtable = [x86.ALAST]gc.ProgInfo{ obj.ATYPE: gc.ProgInfo{gc.Pseudo | gc.Skip, 0, 0, 0}, obj.ATEXT: gc.ProgInfo{gc.Pseudo, 0, 0, 0}, obj.AFUNCDATA: gc.ProgInfo{gc.Pseudo, 0, 0, 0}, obj.APCDATA: gc.ProgInfo{gc.Pseudo, 0, 0, 0}, obj.AUNDEF: gc.ProgInfo{gc.Break, 0, 0, 0}, obj.AUSEFIELD: gc.ProgInfo{gc.OK, 0, 0, 0}, obj.ACHECKNIL: gc.ProgInfo{gc.LeftRead, 0, 0, 0}, obj.AVARDEF: gc.ProgInfo{gc.Pseudo | gc.RightWrite, 0, 0, 0}, obj.AVARKILL: gc.ProgInfo{gc.Pseudo | gc.RightWrite, 0, 0, 0}, // NOP is an internal no-op that also stands // for USED and SET annotations, not the Intel opcode. obj.ANOP: gc.ProgInfo{gc.LeftRead | gc.RightWrite, 0, 0, 0}, x86.AADCL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.AADCQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.AADCW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.AADDB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AADDL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AADDW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AADDQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AADDSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0}, x86.AADDSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0}, x86.AANDB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AANDL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AANDQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AANDW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, obj.ACALL: gc.ProgInfo{gc.RightAddr | gc.Call | gc.KillCarry, 0, 0, 0}, x86.ACDQ: gc.ProgInfo{gc.OK, AX, AX | DX, 0}, x86.ACQO: gc.ProgInfo{gc.OK, AX, AX | DX, 0}, x86.ACWD: gc.ProgInfo{gc.OK, AX, AX | DX, 0}, x86.ACLD: gc.ProgInfo{gc.OK, 0, 0, 0}, x86.ASTD: gc.ProgInfo{gc.OK, 0, 0, 0}, x86.ACMPB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.ACMPL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.ACMPQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.ACMPW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.ACOMISD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.ACOMISS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.ACVTSD2SL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTSD2SQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTSD2SS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTSL2SD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTSL2SS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTSQ2SD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTSQ2SS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTSS2SD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTSS2SL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTSS2SQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTTSD2SL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTTSD2SQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTTSS2SL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ACVTTSS2SQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.ADECB: gc.ProgInfo{gc.SizeB | RightRdwr, 0, 0, 0}, x86.ADECL: gc.ProgInfo{gc.SizeL | RightRdwr, 0, 0, 0}, x86.ADECQ: gc.ProgInfo{gc.SizeQ | RightRdwr, 0, 0, 0}, x86.ADECW: gc.ProgInfo{gc.SizeW | RightRdwr, 0, 0, 0}, x86.ADIVB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0}, x86.ADIVL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, x86.ADIVQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, x86.ADIVW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, x86.ADIVSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0}, x86.ADIVSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0}, x86.AIDIVB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0}, x86.AIDIVL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, x86.AIDIVQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, x86.AIDIVW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, x86.AIMULB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0}, x86.AIMULL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.ImulAXDX | gc.SetCarry, 0, 0, 0}, x86.AIMULQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.ImulAXDX | gc.SetCarry, 0, 0, 0}, x86.AIMULW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.ImulAXDX | gc.SetCarry, 0, 0, 0}, x86.AINCB: gc.ProgInfo{gc.SizeB | RightRdwr, 0, 0, 0}, x86.AINCL: gc.ProgInfo{gc.SizeL | RightRdwr, 0, 0, 0}, x86.AINCQ: gc.ProgInfo{gc.SizeQ | RightRdwr, 0, 0, 0}, x86.AINCW: gc.ProgInfo{gc.SizeW | RightRdwr, 0, 0, 0}, x86.AJCC: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJCS: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJEQ: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJGE: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJGT: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJHI: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJLE: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJLS: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJLT: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJMI: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJNE: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJOC: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJOS: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJPC: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJPL: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, x86.AJPS: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0}, obj.AJMP: gc.ProgInfo{gc.Jump | gc.Break | gc.KillCarry, 0, 0, 0}, x86.ALEAL: gc.ProgInfo{gc.LeftAddr | gc.RightWrite, 0, 0, 0}, x86.ALEAQ: gc.ProgInfo{gc.LeftAddr | gc.RightWrite, 0, 0, 0}, x86.AMOVBLSX: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVBLZX: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVBQSX: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVBQZX: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVBWSX: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVBWZX: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVLQSX: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVLQZX: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVWLSX: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVWLZX: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVWQSX: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVWQZX: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVQL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, x86.AMOVB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, x86.AMOVL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, x86.AMOVQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, x86.AMOVW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, x86.AMOVSB: gc.ProgInfo{gc.OK, DI | SI, DI | SI, 0}, x86.AMOVSL: gc.ProgInfo{gc.OK, DI | SI, DI | SI, 0}, x86.AMOVSQ: gc.ProgInfo{gc.OK, DI | SI, DI | SI, 0}, x86.AMOVSW: gc.ProgInfo{gc.OK, DI | SI, DI | SI, 0}, obj.ADUFFCOPY: gc.ProgInfo{gc.OK, DI | SI, DI | SI | CX, 0}, x86.AMOVSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, x86.AMOVSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, // We use MOVAPD as a faster synonym for MOVSD. x86.AMOVAPD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, x86.AMULB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0}, x86.AMULL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.SetCarry, AX, AX | DX, 0}, x86.AMULQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.SetCarry, AX, AX | DX, 0}, x86.AMULW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.SetCarry, AX, AX | DX, 0}, x86.AMULSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0}, x86.AMULSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0}, x86.ANEGB: gc.ProgInfo{gc.SizeB | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.ANEGL: gc.ProgInfo{gc.SizeL | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.ANEGQ: gc.ProgInfo{gc.SizeQ | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.ANEGW: gc.ProgInfo{gc.SizeW | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.ANOTB: gc.ProgInfo{gc.SizeB | RightRdwr, 0, 0, 0}, x86.ANOTL: gc.ProgInfo{gc.SizeL | RightRdwr, 0, 0, 0}, x86.ANOTQ: gc.ProgInfo{gc.SizeQ | RightRdwr, 0, 0, 0}, x86.ANOTW: gc.ProgInfo{gc.SizeW | RightRdwr, 0, 0, 0}, x86.AORB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AORL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AORQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AORW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.APOPQ: gc.ProgInfo{gc.SizeQ | gc.RightWrite, 0, 0, 0}, x86.APUSHQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead, 0, 0, 0}, x86.ARCLB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ARCLL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ARCLQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ARCLW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ARCRB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ARCRL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ARCRQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ARCRW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.AREP: gc.ProgInfo{gc.OK, CX, CX, 0}, x86.AREPN: gc.ProgInfo{gc.OK, CX, CX, 0}, obj.ARET: gc.ProgInfo{gc.Break | gc.KillCarry, 0, 0, 0}, x86.AROLB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.AROLL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.AROLQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.AROLW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ARORB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ARORL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ARORQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ARORW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASALB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASALL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASALQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASALW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASARB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASARL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASARQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASARW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASBBB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ASBBL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ASBBQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ASBBW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, x86.ASHLB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASHLL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASHLQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASHLW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASHRB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASHRL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASHRQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASHRW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, x86.ASTOSB: gc.ProgInfo{gc.OK, AX | DI, DI, 0}, x86.ASTOSL: gc.ProgInfo{gc.OK, AX | DI, DI, 0}, x86.ASTOSQ: gc.ProgInfo{gc.OK, AX | DI, DI, 0}, x86.ASTOSW: gc.ProgInfo{gc.OK, AX | DI, DI, 0}, obj.ADUFFZERO: gc.ProgInfo{gc.OK, AX | DI, DI, 0}, x86.ASUBB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.ASUBL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.ASUBQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.ASUBW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.ASUBSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0}, x86.ASUBSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0}, x86.ATESTB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.ATESTL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.ATESTQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.ATESTW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, x86.AUCOMISD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightRead, 0, 0, 0}, x86.AUCOMISS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightRead, 0, 0, 0}, x86.AXCHGB: gc.ProgInfo{gc.SizeB | LeftRdwr | RightRdwr, 0, 0, 0}, x86.AXCHGL: gc.ProgInfo{gc.SizeL | LeftRdwr | RightRdwr, 0, 0, 0}, x86.AXCHGQ: gc.ProgInfo{gc.SizeQ | LeftRdwr | RightRdwr, 0, 0, 0}, x86.AXCHGW: gc.ProgInfo{gc.SizeW | LeftRdwr | RightRdwr, 0, 0, 0}, x86.AXORB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AXORL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AXORQ: gc.ProgInfo{gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, x86.AXORW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, } func progflags(p *obj.Prog) uint32 { flags := progtable[p.As].Flags if flags&gc.ImulAXDX != 0 && p.To.Type != obj.TYPE_NONE { flags |= RightRdwr } return flags } func progcarryflags(p *obj.Prog) uint32 { return progtable[p.As].Flags } func proginfo(p *obj.Prog) (info gc.ProgInfo) { info = progtable[p.As] if info.Flags == 0 { gc.Fatal("unknown instruction %v", p) } if (info.Flags&gc.ShiftCX != 0) && p.From.Type != obj.TYPE_CONST { info.Reguse |= CX } if info.Flags&gc.ImulAXDX != 0 { if p.To.Type == obj.TYPE_NONE { info.Reguse |= AX info.Regset |= AX | DX } else { info.Flags |= RightRdwr } } // Addressing makes some registers used. if p.From.Type == obj.TYPE_MEM && p.From.Name == obj.NAME_NONE { info.Regindex |= RtoB(int(p.From.Reg)) } if p.From.Index != x86.REG_NONE { info.Regindex |= RtoB(int(p.From.Index)) } if p.To.Type == obj.TYPE_MEM && p.To.Name == obj.NAME_NONE { info.Regindex |= RtoB(int(p.To.Reg)) } if p.To.Index != x86.REG_NONE { info.Regindex |= RtoB(int(p.To.Index)) } return }