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prog.go
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prog.go
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// Copyright 2016 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 s390x
import (
"cmd/compile/internal/gc"
"cmd/internal/obj"
"cmd/internal/obj/s390x"
)
// 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.
var progtable = [s390x.ALAST & obj.AMask]gc.ProgInfo{
obj.ATYPE & obj.AMask: {Flags: gc.Pseudo | gc.Skip},
obj.ATEXT & obj.AMask: {Flags: gc.Pseudo},
obj.AFUNCDATA & obj.AMask: {Flags: gc.Pseudo},
obj.APCDATA & obj.AMask: {Flags: gc.Pseudo},
obj.AUNDEF & obj.AMask: {Flags: gc.Break},
obj.AUSEFIELD & obj.AMask: {Flags: gc.OK},
obj.AVARDEF & obj.AMask: {Flags: gc.Pseudo | gc.RightWrite},
obj.AVARKILL & obj.AMask: {Flags: gc.Pseudo | gc.RightWrite},
obj.AVARLIVE & obj.AMask: {Flags: gc.Pseudo | gc.LeftRead},
// NOP is an internal no-op that also stands
// for USED and SET annotations.
obj.ANOP & obj.AMask: {Flags: gc.LeftRead | gc.RightWrite},
// Integer
s390x.AADD & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ASUB & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ASUBE & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AADDW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ASUBW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ANEG & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ANEGW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AAND & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AANDW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AOR & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AORW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AXOR & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AXORW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AMULLD & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AMULLW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AMULHD & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AMULHDU & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ADIVD & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ADIVDU & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ADIVW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ADIVWU & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ASLD & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ASLW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ASRD & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ASRW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ASRAD & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ASRAW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ARLL & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ARLLG & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.ACMP & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightRead},
s390x.ACMPU & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightRead},
s390x.ACMPW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightRead},
s390x.ACMPWU & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightRead},
s390x.AMODD & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AMODDU & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AMODW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AMODWU & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AFLOGR & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite},
// Floating point.
s390x.AFADD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AFADDS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AFSUB & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AFSUBS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AFMUL & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AFMULS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AFDIV & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AFDIVS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite},
s390x.AFCMPU & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightRead},
s390x.ACEBR & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightRead},
s390x.ALEDBR & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ALDEBR & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.AFSQRT & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite},
s390x.AFNEG & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite},
s390x.AFNEGS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite},
// Conversions
s390x.ACEFBRA & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACDFBRA & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACEGBRA & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACDGBRA & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACFEBRA & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACFDBRA & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACGEBRA & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACGDBRA & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACELFBR & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACDLFBR & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACELGBR & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACDLGBR & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACLFEBR & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACLFDBR & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACLGEBR & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
s390x.ACLGDBR & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv},
// Moves
s390x.AMOVB & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
s390x.AMOVBZ & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
s390x.AMOVH & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
s390x.AMOVHZ & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
s390x.AMOVW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
s390x.AMOVWZ & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
s390x.AMOVD & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move},
s390x.AMOVHBR & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
s390x.AMOVWBR & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
s390x.AMOVDBR & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move},
s390x.AFMOVS & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
s390x.AFMOVD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move},
s390x.AMOVDEQ & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move},
s390x.AMOVDGE & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move},
s390x.AMOVDGT & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move},
s390x.AMOVDLE & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move},
s390x.AMOVDLT & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move},
s390x.AMOVDNE & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move},
// Storage operations
s390x.AMVC & obj.AMask: {Flags: gc.LeftRead | gc.LeftAddr | gc.RightWrite | gc.RightAddr},
s390x.ACLC & obj.AMask: {Flags: gc.LeftRead | gc.LeftAddr | gc.RightRead | gc.RightAddr},
s390x.AXC & obj.AMask: {Flags: gc.LeftRead | gc.LeftAddr | gc.RightWrite | gc.RightAddr},
s390x.AOC & obj.AMask: {Flags: gc.LeftRead | gc.LeftAddr | gc.RightWrite | gc.RightAddr},
s390x.ANC & obj.AMask: {Flags: gc.LeftRead | gc.LeftAddr | gc.RightWrite | gc.RightAddr},
// Jumps
s390x.ABR & obj.AMask: {Flags: gc.Jump | gc.Break},
s390x.ABL & obj.AMask: {Flags: gc.Call},
s390x.ABEQ & obj.AMask: {Flags: gc.Cjmp},
s390x.ABNE & obj.AMask: {Flags: gc.Cjmp},
s390x.ABGE & obj.AMask: {Flags: gc.Cjmp},
s390x.ABLT & obj.AMask: {Flags: gc.Cjmp},
s390x.ABGT & obj.AMask: {Flags: gc.Cjmp},
s390x.ABLE & obj.AMask: {Flags: gc.Cjmp},
s390x.ABLEU & obj.AMask: {Flags: gc.Cjmp},
s390x.ABLTU & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPBEQ & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPBNE & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPBGE & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPBLT & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPBGT & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPBLE & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPUBEQ & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPUBNE & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPUBGE & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPUBLT & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPUBGT & obj.AMask: {Flags: gc.Cjmp},
s390x.ACMPUBLE & obj.AMask: {Flags: gc.Cjmp},
// Atomic
s390x.ACS & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.LeftWrite | gc.RegRead | gc.RightRead | gc.RightWrite},
s390x.ACSG & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.LeftWrite | gc.RegRead | gc.RightRead | gc.RightWrite},
s390x.ALAA & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightRead | gc.RightWrite},
s390x.ALAAG & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightRead | gc.RightWrite},
// Macros
s390x.ACLEAR & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightAddr | gc.RightWrite},
// Load/store multiple
s390x.ASTMG & obj.AMask: {Flags: gc.SizeQ | gc.LeftRead | gc.RightAddr | gc.RightWrite},
s390x.ASTMY & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightAddr | gc.RightWrite},
s390x.ALMG & obj.AMask: {Flags: gc.SizeQ | gc.LeftAddr | gc.LeftRead | gc.RightWrite},
s390x.ALMY & obj.AMask: {Flags: gc.SizeL | gc.LeftAddr | gc.LeftRead | gc.RightWrite},
obj.ARET & obj.AMask: {Flags: gc.Break},
}
func proginfo(p *obj.Prog) gc.ProgInfo {
info := progtable[p.As&obj.AMask]
if info.Flags == 0 {
gc.Fatalf("proginfo: unknown instruction %v", p)
}
if (info.Flags&gc.RegRead != 0) && p.Reg == 0 {
info.Flags &^= gc.RegRead
info.Flags |= gc.RightRead /*CanRegRead |*/
}
if p.From.Type == obj.TYPE_ADDR && p.From.Sym != nil && (info.Flags&gc.LeftRead != 0) {
info.Flags &^= gc.LeftRead
info.Flags |= gc.LeftAddr
}
return info
}