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cmd/compile: try and access last argument first in rulegen 

This reduces the number of extra bounds check hints we need to
insert. For example, rather than producing:

	_ = v.Args[2]
	x := v.Args[0]
	y := v.Args[1]
	z := v.Args[2]

We now produce:

	z := v.Args[2]
	x := v.Args[0]
	y := v.Args[1]

This gets rid of about 7000 lines of code from the rewrite rules.

Change-Id: I1291cf0f82e8d035a6d65bce7dee6cedee04cbcd
Reviewed-on: https://go-review.googlesource.com/c/go/+/167397
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Michael Munday 2019-03-13 10:32:48 +00:00
parent 5d4fa147c7
commit 04f1b65cc6
13 changed files with 7349 additions and 14485 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/cmd/compile/internal/ssa/gen/rulegen.go
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@ -449,7 +449,6 @@ func genMatch0(w io.Writer, arch arch, match, v string, m map[string]struct{}, t
}
if aux != "" {
if !isVariable(aux) {
// code
fmt.Fprintf(w, "if %s.Aux != %s {\nbreak\n}\n", v, aux)
@ -466,8 +465,18 @@ func genMatch0(w io.Writer, arch arch, match, v string, m map[string]struct{}, t
}
}
// Access last argument first to minimize bounds checks.
if n := len(args); n > 1 {
fmt.Fprintf(w, "_ = %s.Args[%d]\n", v, n-1) // combine some bounds checks
a := args[n-1]
if _, set := m[a]; !set && a != "_" && isVariable(a) {
m[a] = struct{}{}
fmt.Fprintf(w, "%s := %s.Args[%d]\n", a, v, n-1)
// delete the last argument so it is not reprocessed
args = args[:n-1]
} else {
fmt.Fprintf(w, "_ = %s.Args[%d]\n", v, n-1)
}
}
for i, arg := range args {
if arg == "_" {

2208
src/cmd/compile/internal/ssa/rewrite386.go
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File diff suppressed because it is too large Load Diff

4846
src/cmd/compile/internal/ssa/rewriteAMD64.go
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File diff suppressed because it is too large Load Diff

2708
src/cmd/compile/internal/ssa/rewriteARM.go
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File diff suppressed because it is too large Load Diff

2787
src/cmd/compile/internal/ssa/rewriteARM64.go
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File diff suppressed because it is too large Load Diff

760
src/cmd/compile/internal/ssa/rewriteMIPS.go
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File diff suppressed because it is too large Load Diff

919
src/cmd/compile/internal/ssa/rewriteMIPS64.go
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File diff suppressed because it is too large Load Diff

1713
src/cmd/compile/internal/ssa/rewritePPC64.go
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File diff suppressed because it is too large Load Diff

3215
src/cmd/compile/internal/ssa/rewriteS390X.go
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File diff suppressed because it is too large Load Diff

674
src/cmd/compile/internal/ssa/rewriteWasm.go
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File diff suppressed because it is too large Load Diff

49
src/cmd/compile/internal/ssa/rewritedec.go
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@ -51,7 +51,6 @@ func rewriteValuedec_OpComplexImag_0(v *Value) bool {
if v_0.Op != OpComplexMake {
break
}
_ = v_0.Args[1]
imag := v_0.Args[1]
v.reset(OpCopy)
v.Type = imag.Type
@ -87,7 +86,6 @@ func rewriteValuedec_OpIData_0(v *Value) bool {
if v_0.Op != OpIMake {
break
}
_ = v_0.Args[1]
data := v_0.Args[1]
v.reset(OpCopy)
v.Type = data.Type
@ -123,9 +121,8 @@ func rewriteValuedec_OpLoad_0(v *Value) bool {
// result: (ComplexMake (Load <typ.Float32> ptr mem) (Load <typ.Float32> (OffPtr <typ.Float32Ptr> [4] ptr) mem) )
for {
t := v.Type
_ = v.Args[1]
ptr := v.Args[0]
mem := v.Args[1]
ptr := v.Args[0]
if !(t.IsComplex() && t.Size() == 8) {
break
}
@ -148,9 +145,8 @@ func rewriteValuedec_OpLoad_0(v *Value) bool {
// result: (ComplexMake (Load <typ.Float64> ptr mem) (Load <typ.Float64> (OffPtr <typ.Float64Ptr> [8] ptr) mem) )
for {
t := v.Type
_ = v.Args[1]
ptr := v.Args[0]
mem := v.Args[1]
ptr := v.Args[0]
if !(t.IsComplex() && t.Size() == 16) {
break
}
@ -173,9 +169,8 @@ func rewriteValuedec_OpLoad_0(v *Value) bool {
// result: (StringMake (Load <typ.BytePtr> ptr mem) (Load <typ.Int> (OffPtr <typ.IntPtr> [config.PtrSize] ptr) mem))
for {
t := v.Type
_ = v.Args[1]
ptr := v.Args[0]
mem := v.Args[1]
ptr := v.Args[0]
if !(t.IsString()) {
break
}
@ -198,9 +193,8 @@ func rewriteValuedec_OpLoad_0(v *Value) bool {
// result: (SliceMake (Load <t.Elem().PtrTo()> ptr mem) (Load <typ.Int> (OffPtr <typ.IntPtr> [config.PtrSize] ptr) mem) (Load <typ.Int> (OffPtr <typ.IntPtr> [2*config.PtrSize] ptr) mem))
for {
t := v.Type
_ = v.Args[1]
ptr := v.Args[0]
mem := v.Args[1]
ptr := v.Args[0]
if !(t.IsSlice()) {
break
}
@ -230,9 +224,8 @@ func rewriteValuedec_OpLoad_0(v *Value) bool {
// result: (IMake (Load <typ.Uintptr> ptr mem) (Load <typ.BytePtr> (OffPtr <typ.BytePtrPtr> [config.PtrSize] ptr) mem))
for {
t := v.Type
_ = v.Args[1]
ptr := v.Args[0]
mem := v.Args[1]
ptr := v.Args[0]
if !(t.IsInterface()) {
break
}
@ -261,7 +254,6 @@ func rewriteValuedec_OpSliceCap_0(v *Value) bool {
if v_0.Op != OpSliceMake {
break
}
_ = v_0.Args[2]
cap := v_0.Args[2]
v.reset(OpCopy)
v.Type = cap.Type
@ -315,16 +307,14 @@ func rewriteValuedec_OpStore_0(v *Value) bool {
// result: (Store {typ.Float32} (OffPtr <typ.Float32Ptr> [4] dst) imag (Store {typ.Float32} dst real mem))
for {
t := v.Aux
_ = v.Args[2]
mem := v.Args[2]
dst := v.Args[0]
v_1 := v.Args[1]
if v_1.Op != OpComplexMake {
break
}
_ = v_1.Args[1]
real := v_1.Args[0]
imag := v_1.Args[1]
mem := v.Args[2]
real := v_1.Args[0]
if !(t.(*types.Type).Size() == 8) {
break
}
@ -348,16 +338,14 @@ func rewriteValuedec_OpStore_0(v *Value) bool {
// result: (Store {typ.Float64} (OffPtr <typ.Float64Ptr> [8] dst) imag (Store {typ.Float64} dst real mem))
for {
t := v.Aux
_ = v.Args[2]
mem := v.Args[2]
dst := v.Args[0]
v_1 := v.Args[1]
if v_1.Op != OpComplexMake {
break
}
_ = v_1.Args[1]
real := v_1.Args[0]
imag := v_1.Args[1]
mem := v.Args[2]
real := v_1.Args[0]
if !(t.(*types.Type).Size() == 16) {
break
}
@ -380,16 +368,14 @@ func rewriteValuedec_OpStore_0(v *Value) bool {
// cond:
// result: (Store {typ.Int} (OffPtr <typ.IntPtr> [config.PtrSize] dst) len (Store {typ.BytePtr} dst ptr mem))
for {
_ = v.Args[2]
mem := v.Args[2]
dst := v.Args[0]
v_1 := v.Args[1]
if v_1.Op != OpStringMake {
break
}
_ = v_1.Args[1]
ptr := v_1.Args[0]
len := v_1.Args[1]
mem := v.Args[2]
ptr := v_1.Args[0]
v.reset(OpStore)
v.Aux = typ.Int
v0 := b.NewValue0(v.Pos, OpOffPtr, typ.IntPtr)
@ -409,17 +395,15 @@ func rewriteValuedec_OpStore_0(v *Value) bool {
// cond:
// result: (Store {typ.Int} (OffPtr <typ.IntPtr> [2*config.PtrSize] dst) cap (Store {typ.Int} (OffPtr <typ.IntPtr> [config.PtrSize] dst) len (Store {typ.BytePtr} dst ptr mem)))
for {
_ = v.Args[2]
mem := v.Args[2]
dst := v.Args[0]
v_1 := v.Args[1]
if v_1.Op != OpSliceMake {
break
}
_ = v_1.Args[2]
cap := v_1.Args[2]
ptr := v_1.Args[0]
len := v_1.Args[1]
cap := v_1.Args[2]
mem := v.Args[2]
v.reset(OpStore)
v.Aux = typ.Int
v0 := b.NewValue0(v.Pos, OpOffPtr, typ.IntPtr)
@ -447,16 +431,14 @@ func rewriteValuedec_OpStore_0(v *Value) bool {
// cond:
// result: (Store {typ.BytePtr} (OffPtr <typ.BytePtrPtr> [config.PtrSize] dst) data (Store {typ.Uintptr} dst itab mem))
for {
_ = v.Args[2]
mem := v.Args[2]
dst := v.Args[0]
v_1 := v.Args[1]
if v_1.Op != OpIMake {
break
}
_ = v_1.Args[1]
itab := v_1.Args[0]
data := v_1.Args[1]
mem := v.Args[2]
itab := v_1.Args[0]
v.reset(OpStore)
v.Aux = typ.BytePtr
v0 := b.NewValue0(v.Pos, OpOffPtr, typ.BytePtrPtr)
@ -483,7 +465,6 @@ func rewriteValuedec_OpStringLen_0(v *Value) bool {
if v_0.Op != OpStringMake {
break
}
_ = v_0.Args[1]
len := v_0.Args[1]
v.reset(OpCopy)
v.Type = len.Type

202
src/cmd/compile/internal/ssa/rewritedec64.go
View File

@ -143,9 +143,8 @@ func rewriteValuedec64_OpAdd64_0(v *Value) bool {
// cond:
// result: (Int64Make (Add32withcarry <typ.Int32> (Int64Hi x) (Int64Hi y) (Select1 <types.TypeFlags> (Add32carry (Int64Lo x) (Int64Lo y)))) (Select0 <typ.UInt32> (Add32carry (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpAdd32withcarry, typ.Int32)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -185,9 +184,8 @@ func rewriteValuedec64_OpAnd64_0(v *Value) bool {
// cond:
// result: (Int64Make (And32 <typ.UInt32> (Int64Hi x) (Int64Hi y)) (And32 <typ.UInt32> (Int64Lo x) (Int64Lo y)))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpAnd32, typ.UInt32)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -459,9 +457,8 @@ func rewriteValuedec64_OpEq64_0(v *Value) bool {
// cond:
// result: (AndB (Eq32 (Int64Hi x) (Int64Hi y)) (Eq32 (Int64Lo x) (Int64Lo y)))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpAndB)
v0 := b.NewValue0(v.Pos, OpEq32, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -489,9 +486,8 @@ func rewriteValuedec64_OpGeq64_0(v *Value) bool {
// cond:
// result: (OrB (Greater32 (Int64Hi x) (Int64Hi y)) (AndB (Eq32 (Int64Hi x) (Int64Hi y)) (Geq32U (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpOrB)
v0 := b.NewValue0(v.Pos, OpGreater32, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -529,9 +525,8 @@ func rewriteValuedec64_OpGeq64U_0(v *Value) bool {
// cond:
// result: (OrB (Greater32U (Int64Hi x) (Int64Hi y)) (AndB (Eq32 (Int64Hi x) (Int64Hi y)) (Geq32U (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpOrB)
v0 := b.NewValue0(v.Pos, OpGreater32U, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -569,9 +564,8 @@ func rewriteValuedec64_OpGreater64_0(v *Value) bool {
// cond:
// result: (OrB (Greater32 (Int64Hi x) (Int64Hi y)) (AndB (Eq32 (Int64Hi x) (Int64Hi y)) (Greater32U (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpOrB)
v0 := b.NewValue0(v.Pos, OpGreater32, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -609,9 +603,8 @@ func rewriteValuedec64_OpGreater64U_0(v *Value) bool {
// cond:
// result: (OrB (Greater32U (Int64Hi x) (Int64Hi y)) (AndB (Eq32 (Int64Hi x) (Int64Hi y)) (Greater32U (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpOrB)
v0 := b.NewValue0(v.Pos, OpGreater32U, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -669,7 +662,6 @@ func rewriteValuedec64_OpInt64Lo_0(v *Value) bool {
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
lo := v_0.Args[1]
v.reset(OpCopy)
v.Type = lo.Type
@ -685,9 +677,8 @@ func rewriteValuedec64_OpLeq64_0(v *Value) bool {
// cond:
// result: (OrB (Less32 (Int64Hi x) (Int64Hi y)) (AndB (Eq32 (Int64Hi x) (Int64Hi y)) (Leq32U (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpOrB)
v0 := b.NewValue0(v.Pos, OpLess32, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -725,9 +716,8 @@ func rewriteValuedec64_OpLeq64U_0(v *Value) bool {
// cond:
// result: (OrB (Less32U (Int64Hi x) (Int64Hi y)) (AndB (Eq32 (Int64Hi x) (Int64Hi y)) (Leq32U (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpOrB)
v0 := b.NewValue0(v.Pos, OpLess32U, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -765,9 +755,8 @@ func rewriteValuedec64_OpLess64_0(v *Value) bool {
// cond:
// result: (OrB (Less32 (Int64Hi x) (Int64Hi y)) (AndB (Eq32 (Int64Hi x) (Int64Hi y)) (Less32U (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpOrB)
v0 := b.NewValue0(v.Pos, OpLess32, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -805,9 +794,8 @@ func rewriteValuedec64_OpLess64U_0(v *Value) bool {
// cond:
// result: (OrB (Less32U (Int64Hi x) (Int64Hi y)) (AndB (Eq32 (Int64Hi x) (Int64Hi y)) (Less32U (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpOrB)
v0 := b.NewValue0(v.Pos, OpLess32U, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -847,9 +835,8 @@ func rewriteValuedec64_OpLoad_0(v *Value) bool {
// result: (Int64Make (Load <typ.Int32> (OffPtr <typ.Int32Ptr> [4] ptr) mem) (Load <typ.UInt32> ptr mem))
for {
t := v.Type
_ = v.Args[1]
ptr := v.Args[0]
mem := v.Args[1]
ptr := v.Args[0]
if !(is64BitInt(t) && !config.BigEndian && t.IsSigned()) {
break
}
@ -872,9 +859,8 @@ func rewriteValuedec64_OpLoad_0(v *Value) bool {
// result: (Int64Make (Load <typ.UInt32> (OffPtr <typ.UInt32Ptr> [4] ptr) mem) (Load <typ.UInt32> ptr mem))
for {
t := v.Type
_ = v.Args[1]
ptr := v.Args[0]
mem := v.Args[1]
ptr := v.Args[0]
if !(is64BitInt(t) && !config.BigEndian && !t.IsSigned()) {
break
}
@ -897,9 +883,8 @@ func rewriteValuedec64_OpLoad_0(v *Value) bool {
// result: (Int64Make (Load <typ.Int32> ptr mem) (Load <typ.UInt32> (OffPtr <typ.UInt32Ptr> [4] ptr) mem))
for {
t := v.Type
_ = v.Args[1]
ptr := v.Args[0]
mem := v.Args[1]
ptr := v.Args[0]
if !(is64BitInt(t) && config.BigEndian && t.IsSigned()) {
break
}
@ -922,9 +907,8 @@ func rewriteValuedec64_OpLoad_0(v *Value) bool {
// result: (Int64Make (Load <typ.UInt32> ptr mem) (Load <typ.UInt32> (OffPtr <typ.UInt32Ptr> [4] ptr) mem))
for {
t := v.Type
_ = v.Args[1]
ptr := v.Args[0]
mem := v.Args[1]
ptr := v.Args[0]
if !(is64BitInt(t) && config.BigEndian && !t.IsSigned()) {
break
}
@ -979,7 +963,7 @@ func rewriteValuedec64_OpLsh16x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -987,7 +971,6 @@ func rewriteValuedec64_OpLsh16x64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpLsh16x32)
v.AddArg(x)
v.AddArg(lo)
@ -1003,9 +986,8 @@ func rewriteValuedec64_OpLsh16x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -1056,7 +1038,7 @@ func rewriteValuedec64_OpLsh32x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -1064,7 +1046,6 @@ func rewriteValuedec64_OpLsh32x64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpLsh32x32)
v.AddArg(x)
v.AddArg(lo)
@ -1080,9 +1061,8 @@ func rewriteValuedec64_OpLsh32x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -1105,15 +1085,13 @@ func rewriteValuedec64_OpLsh64x16_0(v *Value) bool {
// cond:
// result: (Int64Make (Or32 <typ.UInt32> (Or32 <typ.UInt32> (Lsh32x16 <typ.UInt32> hi s) (Rsh32Ux16 <typ.UInt32> lo (Sub16 <typ.UInt16> (Const16 <typ.UInt16> [32]) s))) (Lsh32x16 <typ.UInt32> lo (Sub16 <typ.UInt16> s (Const16 <typ.UInt16> [32])))) (Lsh32x16 <typ.UInt32> lo s))
for {
_ = v.Args[1]
s := v.Args[1]
v_0 := v.Args[0]
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
hi := v_0.Args[0]
lo := v_0.Args[1]
s := v.Args[1]
hi := v_0.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpOr32, typ.UInt32)
v1 := b.NewValue0(v.Pos, OpOr32, typ.UInt32)
@ -1156,15 +1134,13 @@ func rewriteValuedec64_OpLsh64x32_0(v *Value) bool {
// cond:
// result: (Int64Make (Or32 <typ.UInt32> (Or32 <typ.UInt32> (Lsh32x32 <typ.UInt32> hi s) (Rsh32Ux32 <typ.UInt32> lo (Sub32 <typ.UInt32> (Const32 <typ.UInt32> [32]) s))) (Lsh32x32 <typ.UInt32> lo (Sub32 <typ.UInt32> s (Const32 <typ.UInt32> [32])))) (Lsh32x32 <typ.UInt32> lo s))
for {
_ = v.Args[1]
s := v.Args[1]
v_0 := v.Args[0]
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
hi := v_0.Args[0]
lo := v_0.Args[1]
s := v.Args[1]
hi := v_0.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpOr32, typ.UInt32)
v1 := b.NewValue0(v.Pos, OpOr32, typ.UInt32)
@ -1235,7 +1211,7 @@ func rewriteValuedec64_OpLsh64x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -1243,7 +1219,6 @@ func rewriteValuedec64_OpLsh64x64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpLsh64x32)
v.AddArg(x)
v.AddArg(lo)
@ -1259,9 +1234,8 @@ func rewriteValuedec64_OpLsh64x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -1284,15 +1258,13 @@ func rewriteValuedec64_OpLsh64x8_0(v *Value) bool {
// cond:
// result: (Int64Make (Or32 <typ.UInt32> (Or32 <typ.UInt32> (Lsh32x8 <typ.UInt32> hi s) (Rsh32Ux8 <typ.UInt32> lo (Sub8 <typ.UInt8> (Const8 <typ.UInt8> [32]) s))) (Lsh32x8 <typ.UInt32> lo (Sub8 <typ.UInt8> s (Const8 <typ.UInt8> [32])))) (Lsh32x8 <typ.UInt32> lo s))
for {
_ = v.Args[1]
s := v.Args[1]
v_0 := v.Args[0]
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
hi := v_0.Args[0]
lo := v_0.Args[1]
s := v.Args[1]
hi := v_0.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpOr32, typ.UInt32)
v1 := b.NewValue0(v.Pos, OpOr32, typ.UInt32)
@ -1363,7 +1335,7 @@ func rewriteValuedec64_OpLsh8x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -1371,7 +1343,6 @@ func rewriteValuedec64_OpLsh8x64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpLsh8x32)
v.AddArg(x)
v.AddArg(lo)
@ -1387,9 +1358,8 @@ func rewriteValuedec64_OpLsh8x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -1412,9 +1382,8 @@ func rewriteValuedec64_OpMul64_0(v *Value) bool {
// cond:
// result: (Int64Make (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Int64Lo x) (Int64Hi y)) (Add32 <typ.UInt32> (Mul32 <typ.UInt32> (Int64Hi x) (Int64Lo y)) (Select0 <typ.UInt32> (Mul32uhilo (Int64Lo x) (Int64Lo y))))) (Select1 <typ.UInt32> (Mul32uhilo (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpAdd32, typ.UInt32)
v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
@ -1482,9 +1451,8 @@ func rewriteValuedec64_OpNeq64_0(v *Value) bool {
// cond:
// result: (OrB (Neq32 (Int64Hi x) (Int64Hi y)) (Neq32 (Int64Lo x) (Int64Lo y)))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpOrB)
v0 := b.NewValue0(v.Pos, OpNeq32, typ.Bool)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -1512,9 +1480,8 @@ func rewriteValuedec64_OpOr64_0(v *Value) bool {
// cond:
// result: (Int64Make (Or32 <typ.UInt32> (Int64Hi x) (Int64Hi y)) (Or32 <typ.UInt32> (Int64Lo x) (Int64Lo y)))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpOr32, typ.UInt32)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -1570,7 +1537,7 @@ func rewriteValuedec64_OpRsh16Ux64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -1578,7 +1545,6 @@ func rewriteValuedec64_OpRsh16Ux64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpRsh16Ux32)
v.AddArg(x)
v.AddArg(lo)
@ -1594,9 +1560,8 @@ func rewriteValuedec64_OpRsh16Ux64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -1650,7 +1615,7 @@ func rewriteValuedec64_OpRsh16x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -1658,7 +1623,6 @@ func rewriteValuedec64_OpRsh16x64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpRsh16x32)
v.AddArg(x)
v.AddArg(lo)
@ -1674,9 +1638,8 @@ func rewriteValuedec64_OpRsh16x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -1727,7 +1690,7 @@ func rewriteValuedec64_OpRsh32Ux64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -1735,7 +1698,6 @@ func rewriteValuedec64_OpRsh32Ux64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpRsh32Ux32)
v.AddArg(x)
v.AddArg(lo)
@ -1751,9 +1713,8 @@ func rewriteValuedec64_OpRsh32Ux64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -1805,7 +1766,7 @@ func rewriteValuedec64_OpRsh32x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -1813,7 +1774,6 @@ func rewriteValuedec64_OpRsh32x64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpRsh32x32)
v.AddArg(x)
v.AddArg(lo)
@ -1829,9 +1789,8 @@ func rewriteValuedec64_OpRsh32x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -1854,15 +1813,13 @@ func rewriteValuedec64_OpRsh64Ux16_0(v *Value) bool {
// cond:
// result: (Int64Make (Rsh32Ux16 <typ.UInt32> hi s) (Or32 <typ.UInt32> (Or32 <typ.UInt32> (Rsh32Ux16 <typ.UInt32> lo s) (Lsh32x16 <typ.UInt32> hi (Sub16 <typ.UInt16> (Const16 <typ.UInt16> [32]) s))) (Rsh32Ux16 <typ.UInt32> hi (Sub16 <typ.UInt16> s (Const16 <typ.UInt16> [32])))))
for {
_ = v.Args[1]
s := v.Args[1]
v_0 := v.Args[0]
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
hi := v_0.Args[0]
lo := v_0.Args[1]
s := v.Args[1]
hi := v_0.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpRsh32Ux16, typ.UInt32)
v0.AddArg(hi)
@ -1905,15 +1862,13 @@ func rewriteValuedec64_OpRsh64Ux32_0(v *Value) bool {
// cond:
// result: (Int64Make (Rsh32Ux32 <typ.UInt32> hi s) (Or32 <typ.UInt32> (Or32 <typ.UInt32> (Rsh32Ux32 <typ.UInt32> lo s) (Lsh32x32 <typ.UInt32> hi (Sub32 <typ.UInt32> (Const32 <typ.UInt32> [32]) s))) (Rsh32Ux32 <typ.UInt32> hi (Sub32 <typ.UInt32> s (Const32 <typ.UInt32> [32])))))
for {
_ = v.Args[1]
s := v.Args[1]
v_0 := v.Args[0]
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
hi := v_0.Args[0]
lo := v_0.Args[1]
s := v.Args[1]
hi := v_0.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpRsh32Ux32, typ.UInt32)
v0.AddArg(hi)
@ -1984,7 +1939,7 @@ func rewriteValuedec64_OpRsh64Ux64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -1992,7 +1947,6 @@ func rewriteValuedec64_OpRsh64Ux64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpRsh64Ux32)
v.AddArg(x)
v.AddArg(lo)
@ -2008,9 +1962,8 @@ func rewriteValuedec64_OpRsh64Ux64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -2033,15 +1986,13 @@ func rewriteValuedec64_OpRsh64Ux8_0(v *Value) bool {
// cond:
// result: (Int64Make (Rsh32Ux8 <typ.UInt32> hi s) (Or32 <typ.UInt32> (Or32 <typ.UInt32> (Rsh32Ux8 <typ.UInt32> lo s) (Lsh32x8 <typ.UInt32> hi (Sub8 <typ.UInt8> (Const8 <typ.UInt8> [32]) s))) (Rsh32Ux8 <typ.UInt32> hi (Sub8 <typ.UInt8> s (Const8 <typ.UInt8> [32])))))
for {
_ = v.Args[1]
s := v.Args[1]
v_0 := v.Args[0]
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
hi := v_0.Args[0]
lo := v_0.Args[1]
s := v.Args[1]
hi := v_0.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpRsh32Ux8, typ.UInt32)
v0.AddArg(hi)
@ -2084,15 +2035,13 @@ func rewriteValuedec64_OpRsh64x16_0(v *Value) bool {
// cond:
// result: (Int64Make (Rsh32x16 <typ.UInt32> hi s) (Or32 <typ.UInt32> (Or32 <typ.UInt32> (Rsh32Ux16 <typ.UInt32> lo s) (Lsh32x16 <typ.UInt32> hi (Sub16 <typ.UInt16> (Const16 <typ.UInt16> [32]) s))) (And32 <typ.UInt32> (Rsh32x16 <typ.UInt32> hi (Sub16 <typ.UInt16> s (Const16 <typ.UInt16> [32]))) (Zeromask (ZeroExt16to32 (Rsh16Ux32 <typ.UInt16> s (Const32 <typ.UInt32> [5])))))))
for {
_ = v.Args[1]
s := v.Args[1]
v_0 := v.Args[0]
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
hi := v_0.Args[0]
lo := v_0.Args[1]
s := v.Args[1]
hi := v_0.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpRsh32x16, typ.UInt32)
v0.AddArg(hi)
@ -2147,15 +2096,13 @@ func rewriteValuedec64_OpRsh64x32_0(v *Value) bool {
// cond:
// result: (Int64Make (Rsh32x32 <typ.UInt32> hi s) (Or32 <typ.UInt32> (Or32 <typ.UInt32> (Rsh32Ux32 <typ.UInt32> lo s) (Lsh32x32 <typ.UInt32> hi (Sub32 <typ.UInt32> (Const32 <typ.UInt32> [32]) s))) (And32 <typ.UInt32> (Rsh32x32 <typ.UInt32> hi (Sub32 <typ.UInt32> s (Const32 <typ.UInt32> [32]))) (Zeromask (Rsh32Ux32 <typ.UInt32> s (Const32 <typ.UInt32> [5]))))))
for {
_ = v.Args[1]
s := v.Args[1]
v_0 := v.Args[0]
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
hi := v_0.Args[0]
lo := v_0.Args[1]
s := v.Args[1]
hi := v_0.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpRsh32x32, typ.UInt32)
v0.AddArg(hi)
@ -2246,7 +2193,7 @@ func rewriteValuedec64_OpRsh64x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -2254,7 +2201,6 @@ func rewriteValuedec64_OpRsh64x64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpRsh64x32)
v.AddArg(x)
v.AddArg(lo)
@ -2270,9 +2216,8 @@ func rewriteValuedec64_OpRsh64x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -2295,15 +2240,13 @@ func rewriteValuedec64_OpRsh64x8_0(v *Value) bool {
// cond:
// result: (Int64Make (Rsh32x8 <typ.UInt32> hi s) (Or32 <typ.UInt32> (Or32 <typ.UInt32> (Rsh32Ux8 <typ.UInt32> lo s) (Lsh32x8 <typ.UInt32> hi (Sub8 <typ.UInt8> (Const8 <typ.UInt8> [32]) s))) (And32 <typ.UInt32> (Rsh32x8 <typ.UInt32> hi (Sub8 <typ.UInt8> s (Const8 <typ.UInt8> [32]))) (Zeromask (ZeroExt8to32 (Rsh8Ux32 <typ.UInt8> s (Const32 <typ.UInt32> [5])))))))
for {
_ = v.Args[1]
s := v.Args[1]
v_0 := v.Args[0]
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
hi := v_0.Args[0]
lo := v_0.Args[1]
s := v.Args[1]
hi := v_0.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpRsh32x8, typ.UInt32)
v0.AddArg(hi)
@ -2386,7 +2329,7 @@ func rewriteValuedec64_OpRsh8Ux64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -2394,7 +2337,6 @@ func rewriteValuedec64_OpRsh8Ux64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpRsh8Ux32)
v.AddArg(x)
v.AddArg(lo)
@ -2410,9 +2352,8 @@ func rewriteValuedec64_OpRsh8Ux64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -2466,7 +2407,7 @@ func rewriteValuedec64_OpRsh8x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
lo := v_1.Args[1]
v_1_0 := v_1.Args[0]
if v_1_0.Op != OpConst32 {
break
@ -2474,7 +2415,6 @@ func rewriteValuedec64_OpRsh8x64_0(v *Value) bool {
if v_1_0.AuxInt != 0 {
break
}
lo := v_1.Args[1]
v.reset(OpRsh8x32)
v.AddArg(x)
v.AddArg(lo)
@ -2490,9 +2430,8 @@ func rewriteValuedec64_OpRsh8x64_0(v *Value) bool {
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
hi := v_1.Args[0]
if !(hi.Op != OpConst32) {
break
}
@ -2562,16 +2501,14 @@ func rewriteValuedec64_OpStore_0(v *Value) bool {
// result: (Store {hi.Type} (OffPtr <hi.Type.PtrTo()> [4] dst) hi (Store {lo.Type} dst lo mem))
for {
t := v.Aux
_ = v.Args[2]
mem := v.Args[2]
dst := v.Args[0]
v_1 := v.Args[1]
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
mem := v.Args[2]
hi := v_1.Args[0]
if !(t.(*types.Type).Size() == 8 && !config.BigEndian) {
break
}
@ -2595,16 +2532,14 @@ func rewriteValuedec64_OpStore_0(v *Value) bool {
// result: (Store {lo.Type} (OffPtr <lo.Type.PtrTo()> [4] dst) lo (Store {hi.Type} dst hi mem))
for {
t := v.Aux
_ = v.Args[2]
mem := v.Args[2]
dst := v.Args[0]
v_1 := v.Args[1]
if v_1.Op != OpInt64Make {
break
}
_ = v_1.Args[1]
hi := v_1.Args[0]
lo := v_1.Args[1]
mem := v.Args[2]
hi := v_1.Args[0]
if !(t.(*types.Type).Size() == 8 && config.BigEndian) {
break
}
@ -2632,9 +2567,8 @@ func rewriteValuedec64_OpSub64_0(v *Value) bool {
// cond:
// result: (Int64Make (Sub32withcarry <typ.Int32> (Int64Hi x) (Int64Hi y) (Select1 <types.TypeFlags> (Sub32carry (Int64Lo x) (Int64Lo y)))) (Select0 <typ.UInt32> (Sub32carry (Int64Lo x) (Int64Lo y))))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpSub32withcarry, typ.Int32)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)
@ -2676,7 +2610,6 @@ func rewriteValuedec64_OpTrunc64to16_0(v *Value) bool {
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
lo := v_0.Args[1]
v.reset(OpTrunc32to16)
v.AddArg(lo)
@ -2693,7 +2626,6 @@ func rewriteValuedec64_OpTrunc64to32_0(v *Value) bool {
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
lo := v_0.Args[1]
v.reset(OpCopy)
v.Type = lo.Type
@ -2711,7 +2643,6 @@ func rewriteValuedec64_OpTrunc64to8_0(v *Value) bool {
if v_0.Op != OpInt64Make {
break
}
_ = v_0.Args[1]
lo := v_0.Args[1]
v.reset(OpTrunc32to8)
v.AddArg(lo)
@ -2726,9 +2657,8 @@ func rewriteValuedec64_OpXor64_0(v *Value) bool {
// cond:
// result: (Int64Make (Xor32 <typ.UInt32> (Int64Hi x) (Int64Hi y)) (Xor32 <typ.UInt32> (Int64Lo x) (Int64Lo y)))
for {
_ = v.Args[1]
x := v.Args[0]
y := v.Args[1]
x := v.Args[0]
v.reset(OpInt64Make)
v0 := b.NewValue0(v.Pos, OpXor32, typ.UInt32)
v1 := b.NewValue0(v.Pos, OpInt64Hi, typ.UInt32)

1740
src/cmd/compile/internal/ssa/rewritegeneric.go
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