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// 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/obj"
"cmd/internal/obj/i386"
)
import "cmd/internal/gc"
var (
AX = RtoB(i386.REG_AX)
BX = RtoB(i386.REG_BX)
CX = RtoB(i386.REG_CX)
DX = RtoB(i386.REG_DX)
DI = RtoB(i386.REG_DI)
SI = RtoB(i386.REG_SI)
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 = [i386.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},
i386.AADCL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.AADCW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.AADDB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.AADDL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.AADDW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.AADDSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0},
i386.AADDSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0},
i386.AANDB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.AANDL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.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},
i386.ACDQ: gc.ProgInfo{gc.OK, AX, AX | DX, 0},
i386.ACWD: gc.ProgInfo{gc.OK, AX, AX | DX, 0},
i386.ACLD: gc.ProgInfo{gc.OK, 0, 0, 0},
i386.ASTD: gc.ProgInfo{gc.OK, 0, 0, 0},
i386.ACMPB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0},
i386.ACMPL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0},
i386.ACMPW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0},
i386.ACOMISD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0},
i386.ACOMISS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0},
i386.ACVTSD2SL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.ACVTSD2SS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.ACVTSL2SD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.ACVTSL2SS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.ACVTSS2SD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.ACVTSS2SL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.ACVTTSD2SL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.ACVTTSS2SL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.ADECB: gc.ProgInfo{gc.SizeB | RightRdwr, 0, 0, 0},
i386.ADECL: gc.ProgInfo{gc.SizeL | RightRdwr, 0, 0, 0},
i386.ADECW: gc.ProgInfo{gc.SizeW | RightRdwr, 0, 0, 0},
i386.ADIVB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0},
i386.ADIVL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0},
i386.ADIVW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0},
i386.ADIVSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0},
i386.ADIVSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0},
i386.AFLDCW: gc.ProgInfo{gc.SizeW | gc.LeftAddr, 0, 0, 0},
i386.AFSTCW: gc.ProgInfo{gc.SizeW | gc.RightAddr, 0, 0, 0},
i386.AFSTSW: gc.ProgInfo{gc.SizeW | gc.RightAddr | gc.RightWrite, 0, 0, 0},
i386.AFADDD: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFADDDP: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFADDF: gc.ProgInfo{gc.SizeF | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFCOMD: gc.ProgInfo{gc.SizeD | gc.LeftAddr | gc.RightRead, 0, 0, 0},
i386.AFCOMDP: gc.ProgInfo{gc.SizeD | gc.LeftAddr | gc.RightRead, 0, 0, 0},
i386.AFCOMDPP: gc.ProgInfo{gc.SizeD | gc.LeftAddr | gc.RightRead, 0, 0, 0},
i386.AFCOMF: gc.ProgInfo{gc.SizeF | gc.LeftAddr | gc.RightRead, 0, 0, 0},
i386.AFCOMFP: gc.ProgInfo{gc.SizeF | gc.LeftAddr | gc.RightRead, 0, 0, 0},
i386.AFUCOMIP: gc.ProgInfo{gc.SizeF | gc.LeftAddr | gc.RightRead, 0, 0, 0},
i386.AFCHS: gc.ProgInfo{gc.SizeD | RightRdwr, 0, 0, 0}, // also SizeF
i386.AFDIVDP: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFDIVF: gc.ProgInfo{gc.SizeF | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFDIVD: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFDIVRDP: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFDIVRF: gc.ProgInfo{gc.SizeF | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFDIVRD: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFXCHD: gc.ProgInfo{gc.SizeD | LeftRdwr | RightRdwr, 0, 0, 0},
i386.AFSUBD: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFSUBDP: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFSUBF: gc.ProgInfo{gc.SizeF | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFSUBRD: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFSUBRDP: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFSUBRF: gc.ProgInfo{gc.SizeF | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFMOVD: gc.ProgInfo{gc.SizeD | gc.LeftAddr | gc.RightWrite, 0, 0, 0},
i386.AFMOVF: gc.ProgInfo{gc.SizeF | gc.LeftAddr | gc.RightWrite, 0, 0, 0},
i386.AFMOVL: gc.ProgInfo{gc.SizeL | gc.LeftAddr | gc.RightWrite, 0, 0, 0},
i386.AFMOVW: gc.ProgInfo{gc.SizeW | gc.LeftAddr | gc.RightWrite, 0, 0, 0},
i386.AFMOVV: gc.ProgInfo{gc.SizeQ | gc.LeftAddr | gc.RightWrite, 0, 0, 0},
// These instructions are marked as RightAddr
// so that the register optimizer does not try to replace the
// memory references with integer register references.
// But they do not use the previous value at the address, so
// we also mark them RightWrite.
i386.AFMOVDP: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.RightAddr, 0, 0, 0},
i386.AFMOVFP: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightWrite | gc.RightAddr, 0, 0, 0},
i386.AFMOVLP: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.RightAddr, 0, 0, 0},
i386.AFMOVWP: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightWrite | gc.RightAddr, 0, 0, 0},
i386.AFMOVVP: gc.ProgInfo{gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.RightAddr, 0, 0, 0},
i386.AFMULD: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFMULDP: gc.ProgInfo{gc.SizeD | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AFMULF: gc.ProgInfo{gc.SizeF | gc.LeftAddr | RightRdwr, 0, 0, 0},
i386.AIDIVB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0},
i386.AIDIVL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0},
i386.AIDIVW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.SetCarry, AX | DX, AX | DX, 0},
i386.AIMULB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0},
i386.AIMULL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.ImulAXDX | gc.SetCarry, 0, 0, 0},
i386.AIMULW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.ImulAXDX | gc.SetCarry, 0, 0, 0},
i386.AINCB: gc.ProgInfo{gc.SizeB | RightRdwr, 0, 0, 0},
i386.AINCL: gc.ProgInfo{gc.SizeL | RightRdwr, 0, 0, 0},
i386.AINCW: gc.ProgInfo{gc.SizeW | RightRdwr, 0, 0, 0},
i386.AJCC: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJCS: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJEQ: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJGE: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJGT: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJHI: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJLE: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJLS: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJLT: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJMI: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJNE: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJOC: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJOS: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJPC: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJPL: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
i386.AJPS: gc.ProgInfo{gc.Cjmp | gc.UseCarry, 0, 0, 0},
obj.AJMP: gc.ProgInfo{gc.Jump | gc.Break | gc.KillCarry, 0, 0, 0},
i386.ALEAL: gc.ProgInfo{gc.LeftAddr | gc.RightWrite, 0, 0, 0},
i386.AMOVBLSX: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.AMOVBLZX: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.AMOVBWSX: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.AMOVBWZX: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.AMOVWLSX: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.AMOVWLZX: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
i386.AMOVB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0},
i386.AMOVL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0},
i386.AMOVW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0},
i386.AMOVSB: gc.ProgInfo{gc.OK, DI | SI, DI | SI, 0},
i386.AMOVSL: gc.ProgInfo{gc.OK, DI | SI, DI | SI, 0},
i386.AMOVSW: gc.ProgInfo{gc.OK, DI | SI, DI | SI, 0},
obj.ADUFFCOPY: gc.ProgInfo{gc.OK, DI | SI, DI | SI | CX, 0},
i386.AMOVSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0},
i386.AMOVSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0},
// We use MOVAPD as a faster synonym for MOVSD.
i386.AMOVAPD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0},
i386.AMULB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.SetCarry, AX, AX, 0},
i386.AMULL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.SetCarry, AX, AX | DX, 0},
i386.AMULW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.SetCarry, AX, AX | DX, 0},
i386.AMULSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0},
i386.AMULSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0},
i386.ANEGB: gc.ProgInfo{gc.SizeB | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.ANEGL: gc.ProgInfo{gc.SizeL | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.ANEGW: gc.ProgInfo{gc.SizeW | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.ANOTB: gc.ProgInfo{gc.SizeB | RightRdwr, 0, 0, 0},
i386.ANOTL: gc.ProgInfo{gc.SizeL | RightRdwr, 0, 0, 0},
i386.ANOTW: gc.ProgInfo{gc.SizeW | RightRdwr, 0, 0, 0},
i386.AORB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.AORL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.AORW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.APOPL: gc.ProgInfo{gc.SizeL | gc.RightWrite, 0, 0, 0},
i386.APUSHL: gc.ProgInfo{gc.SizeL | gc.LeftRead, 0, 0, 0},
i386.ARCLB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.ARCLL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.ARCLW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.ARCRB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.ARCRL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.ARCRW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.AREP: gc.ProgInfo{gc.OK, CX, CX, 0},
i386.AREPN: gc.ProgInfo{gc.OK, CX, CX, 0},
obj.ARET: gc.ProgInfo{gc.Break | gc.KillCarry, 0, 0, 0},
i386.AROLB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.AROLL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.AROLW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ARORB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ARORL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ARORW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASAHF: gc.ProgInfo{gc.OK, AX, AX, 0},
i386.ASALB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASALL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASALW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASARB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASARL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASARW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASBBB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.ASBBL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.ASBBW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry | gc.UseCarry, 0, 0, 0},
i386.ASETCC: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETCS: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETEQ: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETGE: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETGT: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETHI: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETLE: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETLS: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETLT: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETMI: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETNE: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETOC: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETOS: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETPC: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETPL: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASETPS: gc.ProgInfo{gc.SizeB | RightRdwr | gc.UseCarry, 0, 0, 0},
i386.ASHLB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASHLL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASHLW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASHRB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASHRL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASHRW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.ShiftCX | gc.SetCarry, 0, 0, 0},
i386.ASTOSB: gc.ProgInfo{gc.OK, AX | DI, DI, 0},
i386.ASTOSL: gc.ProgInfo{gc.OK, AX | DI, DI, 0},
i386.ASTOSW: gc.ProgInfo{gc.OK, AX | DI, DI, 0},
obj.ADUFFZERO: gc.ProgInfo{gc.OK, AX | DI, DI, 0},
i386.ASUBB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.ASUBL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.ASUBW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.ASUBSD: gc.ProgInfo{gc.SizeD | gc.LeftRead | RightRdwr, 0, 0, 0},
i386.ASUBSS: gc.ProgInfo{gc.SizeF | gc.LeftRead | RightRdwr, 0, 0, 0},
i386.ATESTB: gc.ProgInfo{gc.SizeB | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0},
i386.ATESTL: gc.ProgInfo{gc.SizeL | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0},
i386.ATESTW: gc.ProgInfo{gc.SizeW | gc.LeftRead | gc.RightRead | gc.SetCarry, 0, 0, 0},
i386.AUCOMISD: gc.ProgInfo{gc.SizeD | gc.LeftRead | gc.RightRead, 0, 0, 0},
i386.AUCOMISS: gc.ProgInfo{gc.SizeF | gc.LeftRead | gc.RightRead, 0, 0, 0},
i386.AXCHGB: gc.ProgInfo{gc.SizeB | LeftRdwr | RightRdwr, 0, 0, 0},
i386.AXCHGL: gc.ProgInfo{gc.SizeL | LeftRdwr | RightRdwr, 0, 0, 0},
i386.AXCHGW: gc.ProgInfo{gc.SizeW | LeftRdwr | RightRdwr, 0, 0, 0},
i386.AXORB: gc.ProgInfo{gc.SizeB | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.AXORL: gc.ProgInfo{gc.SizeL | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
i386.AXORW: gc.ProgInfo{gc.SizeW | gc.LeftRead | RightRdwr | gc.SetCarry, 0, 0, 0},
}
func proginfo(info *gc.ProgInfo, p *obj.Prog) {
*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 != i386.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 != i386.REG_NONE {
info.Regindex |= RtoB(int(p.To.Index))
}
}
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