cmd/compile: remove ProgInfo tables

Change-Id: Id807c702ad71edddd23f2eb6f5e69e9a62e60bcd
Reviewed-on: https://go-review.googlesource.com/38089
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>

2 files changed, 0 insertions, 156 deletions

diff --git a/src/cmd/compile/internal/mips/galign.go b/src/cmd/compile/internal/mips/galign.go
index 406ae99a2b..30e3e985eb 100644
--- a/src/cmd/compile/internal/mips/galign.go
+++ b/src/cmd/compile/internal/mips/galign.go
@@ -20,7 +20,6 @@ func Init(arch *gc.Arch) {
 	arch.MAXWIDTH = (1 << 31) - 1
 	arch.Defframe = defframe
 	arch.Ginsnop = ginsnop
-	arch.Proginfo = proginfo
 	arch.SSAMarkMoves = func(s *gc.SSAGenState, b *ssa.Block) {}
 	arch.SSAGenValue = ssaGenValue
 	arch.SSAGenBlock = ssaGenBlock
diff --git a/src/cmd/compile/internal/mips/prog.go b/src/cmd/compile/internal/mips/prog.go
deleted file mode 100644
index 3061275f87..0000000000
--- a/src/cmd/compile/internal/mips/prog.go
+++ /dev/null
@@ -1,155 +0,0 @@
-// 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 mips
-
-import (
-	"cmd/compile/internal/gc"
-	"cmd/internal/obj"
-	"cmd/internal/obj/mips"
-)
-
-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 = [mips.ALAST & obj.AMask]gc.ProgInfo{
-	obj.ATEXT:     {Flags: gc.Pseudo},
-	obj.AFUNCDATA: {Flags: gc.Pseudo},
-	obj.APCDATA:   {Flags: gc.Pseudo},
-	obj.AUNDEF:    {Flags: gc.Break},
-	obj.AVARDEF:   {Flags: gc.Pseudo | gc.RightWrite},
-	obj.AVARKILL:  {Flags: gc.Pseudo | gc.RightWrite},
-	obj.AVARLIVE:  {Flags: gc.Pseudo | gc.LeftRead},
-
-	// NOP is an internal no-op that also stands
-	// for USED and SET annotations, not the MIPS opcode.
-	obj.ANOP: {Flags: gc.LeftRead | gc.RightWrite},
-
-	// Integer
-	mips.AADD & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.AADDU & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ASUB & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ASUBU & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.AAND & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.AOR & obj.AMask:   {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.AXOR & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ANOR & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.AMUL & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead},
-	mips.AMULU & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead},
-	mips.ADIV & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead},
-	mips.ADIVU & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead},
-	mips.ASLL & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ASRA & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ASRL & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ASGT & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ASGTU & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | gc.RightWrite},
-
-	mips.ACLZ & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightRead},
-	mips.ACLO & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightRead},
-
-	// Floating point.
-	mips.AADDF & obj.AMask:    {Flags: gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.AADDD & obj.AMask:    {Flags: gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ASUBF & obj.AMask:    {Flags: gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ASUBD & obj.AMask:    {Flags: gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.AMULF & obj.AMask:    {Flags: gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.AMULD & obj.AMask:    {Flags: gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ADIVF & obj.AMask:    {Flags: gc.SizeF | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.ADIVD & obj.AMask:    {Flags: gc.SizeD | gc.LeftRead | gc.RegRead | gc.RightWrite},
-	mips.AABSF & obj.AMask:    {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite},
-	mips.AABSD & obj.AMask:    {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite},
-	mips.ANEGF & obj.AMask:    {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite},
-	mips.ANEGD & obj.AMask:    {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite},
-	mips.ACMPEQF & obj.AMask:  {Flags: gc.SizeF | gc.LeftRead | gc.RegRead},
-	mips.ACMPEQD & obj.AMask:  {Flags: gc.SizeD | gc.LeftRead | gc.RegRead},
-	mips.ACMPGTF & obj.AMask:  {Flags: gc.SizeF | gc.LeftRead | gc.RegRead},
-	mips.ACMPGTD & obj.AMask:  {Flags: gc.SizeD | gc.LeftRead | gc.RegRead},
-	mips.ACMPGEF & obj.AMask:  {Flags: gc.SizeF | gc.LeftRead | gc.RegRead},
-	mips.ACMPGED & obj.AMask:  {Flags: gc.SizeD | gc.LeftRead | gc.RegRead},
-	mips.AMOVFD & obj.AMask:   {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
-	mips.AMOVDF & obj.AMask:   {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv},
-	mips.AMOVFW & obj.AMask:   {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
-	mips.AMOVWF & obj.AMask:   {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Conv},
-	mips.AMOVDW & obj.AMask:   {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
-	mips.AMOVWD & obj.AMask:   {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Conv},
-	mips.ATRUNCFW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
-	mips.ATRUNCDW & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Conv},
-
-	mips.ASQRTF & obj.AMask: {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite},
-	mips.ASQRTD & obj.AMask: {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite},
-
-	// Moves
-	mips.AMOVB & obj.AMask:  {Flags: gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
-	mips.AMOVBU & obj.AMask: {Flags: gc.SizeB | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
-	mips.AMOVH & obj.AMask:  {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
-	mips.AMOVHU & obj.AMask: {Flags: gc.SizeW | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
-	mips.AMOVW & obj.AMask:  {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
-	mips.AMOVF & obj.AMask:  {Flags: gc.SizeF | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
-	mips.AMOVD & obj.AMask:  {Flags: gc.SizeD | gc.LeftRead | gc.RightWrite | gc.Move | gc.Conv},
-
-	// Conditional moves
-	mips.ACMOVN & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | RightRdwr},
-	mips.ACMOVZ & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | gc.RegRead | RightRdwr},
-	mips.ACMOVT & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr},
-	mips.ACMOVF & obj.AMask: {Flags: gc.SizeL | gc.LeftRead | RightRdwr},
-
-	// Conditional trap
-	mips.ATEQ & obj.AMask: {Flags: gc.SizeL | gc.RegRead | gc.RightRead},
-	mips.ATNE & obj.AMask: {Flags: gc.SizeL | gc.RegRead | gc.RightRead},
-
-	// Atomic
-	mips.ASYNC & obj.AMask: {Flags: gc.OK},
-	mips.ALL & obj.AMask:   {Flags: gc.SizeL | gc.LeftRead | gc.RightWrite},
-	mips.ASC & obj.AMask:   {Flags: gc.SizeL | LeftRdwr | gc.RightRead},
-
-	// Jumps
-	mips.AJMP & obj.AMask:  {Flags: gc.Jump | gc.Break},
-	mips.AJAL & obj.AMask:  {Flags: gc.Call},
-	mips.ABEQ & obj.AMask:  {Flags: gc.Cjmp},
-	mips.ABNE & obj.AMask:  {Flags: gc.Cjmp},
-	mips.ABGEZ & obj.AMask: {Flags: gc.Cjmp},
-	mips.ABLTZ & obj.AMask: {Flags: gc.Cjmp},
-	mips.ABGTZ & obj.AMask: {Flags: gc.Cjmp},
-	mips.ABLEZ & obj.AMask: {Flags: gc.Cjmp},
-	mips.ABFPF & obj.AMask: {Flags: gc.Cjmp},
-	mips.ABFPT & obj.AMask: {Flags: gc.Cjmp},
-	mips.ARET & obj.AMask:  {Flags: gc.Break},
-	obj.ADUFFZERO:          {Flags: gc.Call},
-	obj.ADUFFCOPY:          {Flags: gc.Call},
-}
-
-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
-	}
-
-	if p.From.Type == obj.TYPE_ADDR && p.From.Sym != nil && (info.Flags&gc.LeftRead != 0) {
-		info.Flags &^= gc.LeftRead
-		info.Flags |= gc.LeftAddr
-	}
-
-	if p.As == mips.AMUL && p.To.Reg != 0 {
-		info.Flags |= gc.RightWrite
-	}
-
-	return info
-}