| // 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]obj.ProgInfo{ |
| obj.ATYPE: {gc.Pseudo | gc.Skip, 0, 0, 0}, |
| obj.ATEXT: {gc.Pseudo, 0, 0, 0}, |
| obj.AFUNCDATA: {gc.Pseudo, 0, 0, 0}, |
| obj.APCDATA: {gc.Pseudo, 0, 0, 0}, |
| obj.AUNDEF: {gc.Break, 0, 0, 0}, |
| obj.AUSEFIELD: {gc.OK, 0, 0, 0}, |
| obj.ACHECKNIL: {gc.LeftRead, 0, 0, 0}, |
| obj.AVARDEF: {gc.Pseudo | gc.RightWrite, 0, 0, 0}, |
| obj.AVARKILL: {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.LeftRead | gc.RightWrite, 0, 0, 0}, |
| x86.AADCL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.AADCQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.AADCW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.AADDB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AADDL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AADDW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AADDQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AADDSD: {gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0}, |
| x86.AADDSS: {gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0}, |
| x86.AANDB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AANDL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AANDQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AANDW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| obj.ACALL: {gc.RightAddr | gc.Call | gc.KillCarry, 0, 0, 0}, |
| x86.ACDQ: {gc.OK, AX, AX | DX, 0}, |
| x86.ACQO: {gc.OK, AX, AX | DX, 0}, |
| x86.ACWD: {gc.OK, AX, AX | DX, 0}, |
| x86.ACLD: {gc.OK, 0, 0, 0}, |
| x86.ASTD: {gc.OK, 0, 0, 0}, |
| x86.ACMPB: {gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.ACMPL: {gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.ACMPQ: {gc.SizeQ | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.ACMPW: {gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.ACOMISD: {gc.SizeD | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.ACOMISS: {gc.SizeF | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.ACVTSD2SL: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTSD2SQ: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTSD2SS: {gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTSL2SD: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTSL2SS: {gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTSQ2SD: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTSQ2SS: {gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTSS2SD: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTSS2SL: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTSS2SQ: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTTSD2SL: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTTSD2SQ: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTTSS2SL: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ACVTTSS2SQ: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.ADECB: {gc.SizeB | RightRdwr, 0, 0, 0}, |
| x86.ADECL: {gc.SizeL | RightRdwr, 0, 0, 0}, |
| x86.ADECQ: {gc.SizeQ | RightRdwr, 0, 0, 0}, |
| x86.ADECW: {gc.SizeW | RightRdwr, 0, 0, 0}, |
| x86.ADIVB: {gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0}, |
| x86.ADIVL: {gc.SizeL | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, |
| x86.ADIVQ: {gc.SizeQ | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, |
| x86.ADIVW: {gc.SizeW | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, |
| x86.ADIVSD: {gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0}, |
| x86.ADIVSS: {gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0}, |
| x86.AIDIVB: {gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0}, |
| x86.AIDIVL: {gc.SizeL | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, |
| x86.AIDIVQ: {gc.SizeQ | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, |
| x86.AIDIVW: {gc.SizeW | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0}, |
| x86.AIMULB: {gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0}, |
| x86.AIMULL: {gc.SizeL | gc.LeftRead | gc.ImulAXDX | gc.SetCarry, 0, 0, 0}, |
| x86.AIMULQ: {gc.SizeQ | gc.LeftRead | gc.ImulAXDX | gc.SetCarry, 0, 0, 0}, |
| x86.AIMULW: {gc.SizeW | gc.LeftRead | gc.ImulAXDX | gc.SetCarry, 0, 0, 0}, |
| x86.AINCB: {gc.SizeB | RightRdwr, 0, 0, 0}, |
| x86.AINCL: {gc.SizeL | RightRdwr, 0, 0, 0}, |
| x86.AINCQ: {gc.SizeQ | RightRdwr, 0, 0, 0}, |
| x86.AINCW: {gc.SizeW | RightRdwr, 0, 0, 0}, |
| x86.AJCC: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJCS: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJEQ: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJGE: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJGT: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJHI: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJLE: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJLS: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJLT: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJMI: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJNE: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJOC: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJOS: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJPC: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJPL: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| x86.AJPS: {gc.Cjmp | gc.UseCarry, 0, 0, 0}, |
| obj.AJMP: {gc.Jump | gc.Break | gc.KillCarry, 0, 0, 0}, |
| x86.ALEAL: {gc.LeftAddr | gc.RightWrite, 0, 0, 0}, |
| x86.ALEAQ: {gc.LeftAddr | gc.RightWrite, 0, 0, 0}, |
| x86.AMOVBLSX: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVBLZX: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVBQSX: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVBQZX: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVBWSX: {gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVBWZX: {gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVLQSX: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVLQZX: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVWLSX: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVWLZX: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVWQSX: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVWQZX: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVQL: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0}, |
| x86.AMOVB: {gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, |
| x86.AMOVL: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, |
| x86.AMOVQ: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, |
| x86.AMOVW: {gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, |
| x86.AMOVSB: {gc.OK, DI | SI, DI | SI, 0}, |
| x86.AMOVSL: {gc.OK, DI | SI, DI | SI, 0}, |
| x86.AMOVSQ: {gc.OK, DI | SI, DI | SI, 0}, |
| x86.AMOVSW: {gc.OK, DI | SI, DI | SI, 0}, |
| obj.ADUFFCOPY: {gc.OK, DI | SI, DI | SI | CX, 0}, |
| x86.AMOVSD: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, |
| x86.AMOVSS: {gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, |
| |
| // We use MOVAPD as a faster synonym for MOVSD. |
| x86.AMOVAPD: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0}, |
| x86.AMULB: {gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0}, |
| x86.AMULL: {gc.SizeL | gc.LeftRead | gc.SetCarry, AX, AX | DX, 0}, |
| x86.AMULQ: {gc.SizeQ | gc.LeftRead | gc.SetCarry, AX, AX | DX, 0}, |
| x86.AMULW: {gc.SizeW | gc.LeftRead | gc.SetCarry, AX, AX | DX, 0}, |
| x86.AMULSD: {gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0}, |
| x86.AMULSS: {gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0}, |
| x86.ANEGB: {gc.SizeB | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.ANEGL: {gc.SizeL | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.ANEGQ: {gc.SizeQ | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.ANEGW: {gc.SizeW | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.ANOTB: {gc.SizeB | RightRdwr, 0, 0, 0}, |
| x86.ANOTL: {gc.SizeL | RightRdwr, 0, 0, 0}, |
| x86.ANOTQ: {gc.SizeQ | RightRdwr, 0, 0, 0}, |
| x86.ANOTW: {gc.SizeW | RightRdwr, 0, 0, 0}, |
| x86.AORB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AORL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AORQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AORW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.APOPQ: {gc.SizeQ | gc.RightWrite, 0, 0, 0}, |
| x86.APUSHQ: {gc.SizeQ | gc.LeftRead, 0, 0, 0}, |
| x86.ARCLB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ARCLL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ARCLQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ARCLW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ARCRB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ARCRL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ARCRQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ARCRW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.AREP: {gc.OK, CX, CX, 0}, |
| x86.AREPN: {gc.OK, CX, CX, 0}, |
| obj.ARET: {gc.Break | gc.KillCarry, 0, 0, 0}, |
| x86.AROLB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.AROLL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.AROLQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.AROLW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ARORB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ARORL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ARORQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ARORW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASALB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASALL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASALQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASALW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASARB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASARL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASARQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASARW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASBBB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ASBBL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ASBBQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ASBBW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0}, |
| x86.ASHLB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASHLL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASHLQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASHLW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASHRB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASHRL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASHRQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASHRW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0}, |
| x86.ASQRTSD: {gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0}, |
| x86.ASTOSB: {gc.OK, AX | DI, DI, 0}, |
| x86.ASTOSL: {gc.OK, AX | DI, DI, 0}, |
| x86.ASTOSQ: {gc.OK, AX | DI, DI, 0}, |
| x86.ASTOSW: {gc.OK, AX | DI, DI, 0}, |
| obj.ADUFFZERO: {gc.OK, AX | DI, DI, 0}, |
| x86.ASUBB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.ASUBL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.ASUBQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.ASUBW: {gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.ASUBSD: {gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0}, |
| x86.ASUBSS: {gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0}, |
| x86.ATESTB: {gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.ATESTL: {gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.ATESTQ: {gc.SizeQ | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.ATESTW: {gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0}, |
| x86.AUCOMISD: {gc.SizeD | gc.LeftRead | gc.RightRead, 0, 0, 0}, |
| x86.AUCOMISS: {gc.SizeF | gc.LeftRead | gc.RightRead, 0, 0, 0}, |
| x86.AXCHGB: {gc.SizeB | LeftRdwr | RightRdwr, 0, 0, 0}, |
| x86.AXCHGL: {gc.SizeL | LeftRdwr | RightRdwr, 0, 0, 0}, |
| x86.AXCHGQ: {gc.SizeQ | LeftRdwr | RightRdwr, 0, 0, 0}, |
| x86.AXCHGW: {gc.SizeW | LeftRdwr | RightRdwr, 0, 0, 0}, |
| x86.AXORB: {gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AXORL: {gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AXORQ: {gc.SizeQ | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0}, |
| x86.AXORW: {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 := &p.Info |
| *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)) |
| } |
| } |
