mirror of
https://github.com/golang/go
synced 2024-10-06 07:31:22 -06:00
17eba6e6b7
Trivial merging of 5g, 6g, ... into go tool compile, and similarlly 5l, 6l, ... into go tool link. The files compile/main.go and link/main.go are new. Everything else in those directories is a move followed by change of imports and package name. This CL breaks the build. Manual fixups are in the next CL. See golang-dev thread titled "go tool compile, etc" for background. Change-Id: Id35ff5a5859ad9037c61275d637b1bd51df6828b Reviewed-on: https://go-review.googlesource.com/10287 Reviewed-by: Dave Cheney <dave@cheney.net> Reviewed-by: Rob Pike <r@golang.org>
175 lines
7.5 KiB
Go
175 lines
7.5 KiB
Go
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package arm64
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import (
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"cmd/compile/internal/gc"
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"cmd/internal/obj"
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"cmd/internal/obj/arm64"
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)
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const (
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LeftRdwr uint32 = gc.LeftRead | gc.LeftWrite
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RightRdwr uint32 = gc.RightRead | gc.RightWrite
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)
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// This table gives the basic information about instruction
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// generated by the compiler and processed in the optimizer.
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// See opt.h for bit definitions.
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//
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// Instructions not generated need not be listed.
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// As an exception to that rule, we typically write down all the
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// size variants of an operation even if we just use a subset.
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//
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// The table is formatted for 8-space tabs.
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var progtable = [arm64.ALAST]obj.ProgInfo{
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obj.ATYPE: {gc.Pseudo | gc.Skip, 0, 0, 0},
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obj.ATEXT: {gc.Pseudo, 0, 0, 0},
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obj.AFUNCDATA: {gc.Pseudo, 0, 0, 0},
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obj.APCDATA: {gc.Pseudo, 0, 0, 0},
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obj.AUNDEF: {gc.Break, 0, 0, 0},
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obj.AUSEFIELD: {gc.OK, 0, 0, 0},
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obj.ACHECKNIL: {gc.LeftRead, 0, 0, 0},
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obj.AVARDEF: {gc.Pseudo | gc.RightWrite, 0, 0, 0},
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obj.AVARKILL: {gc.Pseudo | gc.RightWrite, 0, 0, 0},
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// NOP is an internal no-op that also stands
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// for USED and SET annotations, not the Power opcode.
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obj.ANOP: {gc.LeftRead | gc.RightWrite, 0, 0, 0},
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arm64.AHINT: {gc.OK, 0, 0, 0},
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// Integer
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arm64.AADD: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.ASUB: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.ANEG: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AAND: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AORR: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AEOR: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AMUL: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.ASMULL: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AUMULL: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.ASMULH: {gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AUMULH: {gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.ASDIV: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AUDIV: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.ALSL: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.ALSR: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AASR: {gc.SizeQ | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.ACMP: {gc.SizeQ | gc.LeftRead | gc.RegRead, 0, 0, 0},
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// Floating point.
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arm64.AFADDD: {gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AFADDS: {gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AFSUBD: {gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AFSUBS: {gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AFNEGD: {gc.SizeD | gc.LeftRead | gc.RightWrite, 0, 0, 0},
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arm64.AFNEGS: {gc.SizeF | gc.LeftRead | gc.RightWrite, 0, 0, 0},
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arm64.AFSQRTD: {gc.SizeD | gc.LeftRead | gc.RightWrite, 0, 0, 0},
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arm64.AFMULD: {gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AFMULS: {gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AFDIVD: {gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AFDIVS: {gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite, 0, 0, 0},
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arm64.AFCMPD: {gc.SizeD | gc.LeftRead | gc.RegRead, 0, 0, 0},
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arm64.AFCMPS: {gc.SizeF | gc.LeftRead | gc.RegRead, 0, 0, 0},
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// float -> integer
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arm64.AFCVTZSD: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AFCVTZSS: {gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AFCVTZSDW: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AFCVTZSSW: {gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AFCVTZUD: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AFCVTZUS: {gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AFCVTZUDW: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AFCVTZUSW: {gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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// float -> float
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arm64.AFCVTSD: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AFCVTDS: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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// integer -> float
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arm64.ASCVTFD: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.ASCVTFS: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.ASCVTFWD: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.ASCVTFWS: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AUCVTFD: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AUCVTFS: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AUCVTFWD: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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arm64.AUCVTFWS: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv, 0, 0, 0},
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// Moves
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arm64.AMOVB: {gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv, 0, 0, 0},
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arm64.AMOVBU: {gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv, 0, 0, 0},
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arm64.AMOVH: {gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv, 0, 0, 0},
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arm64.AMOVHU: {gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv, 0, 0, 0},
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arm64.AMOVW: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv, 0, 0, 0},
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arm64.AMOVWU: {gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv, 0, 0, 0},
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arm64.AMOVD: {gc.SizeQ | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0},
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arm64.AFMOVS: {gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv, 0, 0, 0},
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arm64.AFMOVD: {gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move, 0, 0, 0},
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// Jumps
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arm64.AB: {gc.Jump | gc.Break, 0, 0, 0},
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arm64.ABL: {gc.Call, 0, 0, 0},
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arm64.ABEQ: {gc.Cjmp, 0, 0, 0},
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arm64.ABNE: {gc.Cjmp, 0, 0, 0},
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arm64.ABGE: {gc.Cjmp, 0, 0, 0},
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arm64.ABLT: {gc.Cjmp, 0, 0, 0},
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arm64.ABGT: {gc.Cjmp, 0, 0, 0},
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arm64.ABLE: {gc.Cjmp, 0, 0, 0},
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arm64.ABLO: {gc.Cjmp, 0, 0, 0},
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arm64.ABLS: {gc.Cjmp, 0, 0, 0},
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arm64.ABHI: {gc.Cjmp, 0, 0, 0},
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arm64.ABHS: {gc.Cjmp, 0, 0, 0},
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arm64.ACBZ: {gc.Cjmp, 0, 0, 0},
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arm64.ACBNZ: {gc.Cjmp, 0, 0, 0},
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obj.ARET: {gc.Break, 0, 0, 0},
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obj.ADUFFZERO: {gc.Call, 0, 0, 0},
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obj.ADUFFCOPY: {gc.Call, 0, 0, 0},
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}
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func proginfo(p *obj.Prog) {
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info := &p.Info
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*info = progtable[p.As]
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if info.Flags == 0 {
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gc.Fatal("proginfo: unknown instruction %v", p)
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}
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if (info.Flags&gc.RegRead != 0) && p.Reg == 0 {
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info.Flags &^= gc.RegRead
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info.Flags |= gc.RightRead /*CanRegRead |*/
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}
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if (p.From.Type == obj.TYPE_MEM || p.From.Type == obj.TYPE_ADDR) && p.From.Reg != 0 {
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info.Regindex |= RtoB(int(p.From.Reg))
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if p.Scond != 0 {
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info.Regset |= RtoB(int(p.From.Reg))
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}
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}
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if (p.To.Type == obj.TYPE_MEM || p.To.Type == obj.TYPE_ADDR) && p.To.Reg != 0 {
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info.Regindex |= RtoB(int(p.To.Reg))
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if p.Scond != 0 {
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info.Regset |= RtoB(int(p.To.Reg))
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}
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}
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if p.From.Type == obj.TYPE_ADDR && p.From.Sym != nil && (info.Flags&gc.LeftRead != 0) {
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info.Flags &^= gc.LeftRead
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info.Flags |= gc.LeftAddr
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}
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if p.As == obj.ADUFFZERO {
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info.Reguse |= RtoB(arm64.REGRT1)
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info.Regset |= RtoB(arm64.REGRT1)
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}
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if p.As == obj.ADUFFCOPY {
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// TODO(austin) Revisit when duffcopy is implemented
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info.Reguse |= RtoB(arm64.REGRT1) | RtoB(arm64.REGRT2) | RtoB(arm64.REG_R5)
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info.Regset |= RtoB(arm64.REGRT1) | RtoB(arm64.REGRT2)
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}
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}
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