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path: root/src/cmd/compile/internal/ssa/rewrite386.go
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Diffstat (limited to 'src/cmd/compile/internal/ssa/rewrite386.go')
-rw-r--r--src/cmd/compile/internal/ssa/rewrite386.go88
1 files changed, 18 insertions, 70 deletions
diff --git a/src/cmd/compile/internal/ssa/rewrite386.go b/src/cmd/compile/internal/ssa/rewrite386.go
index fc1e0541b2..afce14fa76 100644
--- a/src/cmd/compile/internal/ssa/rewrite386.go
+++ b/src/cmd/compile/internal/ssa/rewrite386.go
@@ -1310,10 +1310,8 @@ func rewriteValue386_Op386ADDLmodify(v *Value) bool {
func rewriteValue386_Op386ADDSD(v *Value) bool {
v_1 := v.Args[1]
v_0 := v.Args[0]
- b := v.Block
- config := b.Func.Config
// match: (ADDSD x l:(MOVSDload [off] {sym} ptr mem))
- // cond: canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)
+ // cond: canMergeLoadClobber(v, l, x) && clobber(l)
// result: (ADDSDload x [off] {sym} ptr mem)
for {
for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
@@ -1326,7 +1324,7 @@ func rewriteValue386_Op386ADDSD(v *Value) bool {
sym := auxToSym(l.Aux)
mem := l.Args[1]
ptr := l.Args[0]
- if !(canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)) {
+ if !(canMergeLoadClobber(v, l, x) && clobber(l)) {
continue
}
v.reset(Op386ADDSDload)
@@ -1395,10 +1393,8 @@ func rewriteValue386_Op386ADDSDload(v *Value) bool {
func rewriteValue386_Op386ADDSS(v *Value) bool {
v_1 := v.Args[1]
v_0 := v.Args[0]
- b := v.Block
- config := b.Func.Config
// match: (ADDSS x l:(MOVSSload [off] {sym} ptr mem))
- // cond: canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)
+ // cond: canMergeLoadClobber(v, l, x) && clobber(l)
// result: (ADDSSload x [off] {sym} ptr mem)
for {
for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
@@ -1411,7 +1407,7 @@ func rewriteValue386_Op386ADDSS(v *Value) bool {
sym := auxToSym(l.Aux)
mem := l.Args[1]
ptr := l.Args[0]
- if !(canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)) {
+ if !(canMergeLoadClobber(v, l, x) && clobber(l)) {
continue
}
v.reset(Op386ADDSSload)
@@ -2640,10 +2636,8 @@ func rewriteValue386_Op386CMPWload(v *Value) bool {
func rewriteValue386_Op386DIVSD(v *Value) bool {
v_1 := v.Args[1]
v_0 := v.Args[0]
- b := v.Block
- config := b.Func.Config
// match: (DIVSD x l:(MOVSDload [off] {sym} ptr mem))
- // cond: canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)
+ // cond: canMergeLoadClobber(v, l, x) && clobber(l)
// result: (DIVSDload x [off] {sym} ptr mem)
for {
x := v_0
@@ -2655,7 +2649,7 @@ func rewriteValue386_Op386DIVSD(v *Value) bool {
sym := auxToSym(l.Aux)
mem := l.Args[1]
ptr := l.Args[0]
- if !(canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)) {
+ if !(canMergeLoadClobber(v, l, x) && clobber(l)) {
break
}
v.reset(Op386DIVSDload)
@@ -2722,10 +2716,8 @@ func rewriteValue386_Op386DIVSDload(v *Value) bool {
func rewriteValue386_Op386DIVSS(v *Value) bool {
v_1 := v.Args[1]
v_0 := v.Args[0]
- b := v.Block
- config := b.Func.Config
// match: (DIVSS x l:(MOVSSload [off] {sym} ptr mem))
- // cond: canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)
+ // cond: canMergeLoadClobber(v, l, x) && clobber(l)
// result: (DIVSSload x [off] {sym} ptr mem)
for {
x := v_0
@@ -2737,7 +2729,7 @@ func rewriteValue386_Op386DIVSS(v *Value) bool {
sym := auxToSym(l.Aux)
mem := l.Args[1]
ptr := l.Args[0]
- if !(canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)) {
+ if !(canMergeLoadClobber(v, l, x) && clobber(l)) {
break
}
v.reset(Op386DIVSSload)
@@ -6104,10 +6096,8 @@ func rewriteValue386_Op386MULLload(v *Value) bool {
func rewriteValue386_Op386MULSD(v *Value) bool {
v_1 := v.Args[1]
v_0 := v.Args[0]
- b := v.Block
- config := b.Func.Config
// match: (MULSD x l:(MOVSDload [off] {sym} ptr mem))
- // cond: canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)
+ // cond: canMergeLoadClobber(v, l, x) && clobber(l)
// result: (MULSDload x [off] {sym} ptr mem)
for {
for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
@@ -6120,7 +6110,7 @@ func rewriteValue386_Op386MULSD(v *Value) bool {
sym := auxToSym(l.Aux)
mem := l.Args[1]
ptr := l.Args[0]
- if !(canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)) {
+ if !(canMergeLoadClobber(v, l, x) && clobber(l)) {
continue
}
v.reset(Op386MULSDload)
@@ -6189,10 +6179,8 @@ func rewriteValue386_Op386MULSDload(v *Value) bool {
func rewriteValue386_Op386MULSS(v *Value) bool {
v_1 := v.Args[1]
v_0 := v.Args[0]
- b := v.Block
- config := b.Func.Config
// match: (MULSS x l:(MOVSSload [off] {sym} ptr mem))
- // cond: canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)
+ // cond: canMergeLoadClobber(v, l, x) && clobber(l)
// result: (MULSSload x [off] {sym} ptr mem)
for {
for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
@@ -6205,7 +6193,7 @@ func rewriteValue386_Op386MULSS(v *Value) bool {
sym := auxToSym(l.Aux)
mem := l.Args[1]
ptr := l.Args[0]
- if !(canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)) {
+ if !(canMergeLoadClobber(v, l, x) && clobber(l)) {
continue
}
v.reset(Op386MULSSload)
@@ -8187,10 +8175,8 @@ func rewriteValue386_Op386SUBLmodify(v *Value) bool {
func rewriteValue386_Op386SUBSD(v *Value) bool {
v_1 := v.Args[1]
v_0 := v.Args[0]
- b := v.Block
- config := b.Func.Config
// match: (SUBSD x l:(MOVSDload [off] {sym} ptr mem))
- // cond: canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)
+ // cond: canMergeLoadClobber(v, l, x) && clobber(l)
// result: (SUBSDload x [off] {sym} ptr mem)
for {
x := v_0
@@ -8202,7 +8188,7 @@ func rewriteValue386_Op386SUBSD(v *Value) bool {
sym := auxToSym(l.Aux)
mem := l.Args[1]
ptr := l.Args[0]
- if !(canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)) {
+ if !(canMergeLoadClobber(v, l, x) && clobber(l)) {
break
}
v.reset(Op386SUBSDload)
@@ -8269,10 +8255,8 @@ func rewriteValue386_Op386SUBSDload(v *Value) bool {
func rewriteValue386_Op386SUBSS(v *Value) bool {
v_1 := v.Args[1]
v_0 := v.Args[0]
- b := v.Block
- config := b.Func.Config
// match: (SUBSS x l:(MOVSSload [off] {sym} ptr mem))
- // cond: canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)
+ // cond: canMergeLoadClobber(v, l, x) && clobber(l)
// result: (SUBSSload x [off] {sym} ptr mem)
for {
x := v_0
@@ -8284,7 +8268,7 @@ func rewriteValue386_Op386SUBSS(v *Value) bool {
sym := auxToSym(l.Aux)
mem := l.Args[1]
ptr := l.Args[0]
- if !(canMergeLoadClobber(v, l, x) && !config.use387 && clobber(l)) {
+ if !(canMergeLoadClobber(v, l, x) && clobber(l)) {
break
}
v.reset(Op386SUBSSload)
@@ -8712,11 +8696,11 @@ func rewriteValue386_OpConst8(v *Value) bool {
}
func rewriteValue386_OpConstBool(v *Value) bool {
// match: (ConstBool [c])
- // result: (MOVLconst [int32(b2i(c))])
+ // result: (MOVLconst [b2i32(c)])
for {
c := auxIntToBool(v.AuxInt)
v.reset(Op386MOVLconst)
- v.AuxInt = int32ToAuxInt(int32(b2i(c)))
+ v.AuxInt = int32ToAuxInt(b2i32(c))
return true
}
}
@@ -10043,68 +10027,32 @@ func rewriteValue386_OpMove(v *Value) bool {
func rewriteValue386_OpNeg32F(v *Value) bool {
v_0 := v.Args[0]
b := v.Block
- config := b.Func.Config
typ := &b.Func.Config.Types
// match: (Neg32F x)
- // cond: !config.use387
// result: (PXOR x (MOVSSconst <typ.Float32> [float32(math.Copysign(0, -1))]))
for {
x := v_0
- if !(!config.use387) {
- break
- }
v.reset(Op386PXOR)
v0 := b.NewValue0(v.Pos, Op386MOVSSconst, typ.Float32)
v0.AuxInt = float32ToAuxInt(float32(math.Copysign(0, -1)))
v.AddArg2(x, v0)
return true
}
- // match: (Neg32F x)
- // cond: config.use387
- // result: (FCHS x)
- for {
- x := v_0
- if !(config.use387) {
- break
- }
- v.reset(Op386FCHS)
- v.AddArg(x)
- return true
- }
- return false
}
func rewriteValue386_OpNeg64F(v *Value) bool {
v_0 := v.Args[0]
b := v.Block
- config := b.Func.Config
typ := &b.Func.Config.Types
// match: (Neg64F x)
- // cond: !config.use387
// result: (PXOR x (MOVSDconst <typ.Float64> [math.Copysign(0, -1)]))
for {
x := v_0
- if !(!config.use387) {
- break
- }
v.reset(Op386PXOR)
v0 := b.NewValue0(v.Pos, Op386MOVSDconst, typ.Float64)
v0.AuxInt = float64ToAuxInt(math.Copysign(0, -1))
v.AddArg2(x, v0)
return true
}
- // match: (Neg64F x)
- // cond: config.use387
- // result: (FCHS x)
- for {
- x := v_0
- if !(config.use387) {
- break
- }
- v.reset(Op386FCHS)
- v.AddArg(x)
- return true
- }
- return false
}
func rewriteValue386_OpNeq16(v *Value) bool {
v_1 := v.Args[1]
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