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[dev.ssa] cmd/compile: use 2-result divide op

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We now allow Values to have 2 outputs.  Use that ability for amd64.
This allows x,y := a/b,a%b to use just a single divide instruction.

Update #6815

Change-Id: Id70bcd20188a2dd8445e631a11d11f60991921e4
Reviewed-on: https://go-review.googlesource.com/25004
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: David Chase <drchase@google.com>
This commit is contained in:
Keith Randall 2016-07-18 10:18:12 -07:00
parent 25e0a367da
commit cf92e3845f
5 changed files with 224 additions and 291 deletions
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152
src/cmd/compile/internal/amd64/ssa.go
View File

@ -209,89 +209,87 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) {
}
opregreg(v.Op.Asm(), r, gc.SSARegNum(v.Args[1]))
case ssa.OpAMD64DIVQ, ssa.OpAMD64DIVL, ssa.OpAMD64DIVW,
ssa.OpAMD64DIVQU, ssa.OpAMD64DIVLU, ssa.OpAMD64DIVWU,
ssa.OpAMD64MODQ, ssa.OpAMD64MODL, ssa.OpAMD64MODW,
ssa.OpAMD64MODQU, ssa.OpAMD64MODLU, ssa.OpAMD64MODWU:
case ssa.OpAMD64DIVQU, ssa.OpAMD64DIVLU, ssa.OpAMD64DIVWU:
// Arg[0] (the dividend) is in AX.
// Arg[1] (the divisor) can be in any other register.
// Result[0] (the quotient) is in AX.
// Result[1] (the remainder) is in DX.
r := gc.SSARegNum(v.Args[1])
// Arg[0] is already in AX as it's the only register we allow
// and AX is the only output
x := gc.SSARegNum(v.Args[1])
// CPU faults upon signed overflow, which occurs when most
// negative int is divided by -1.
var j *obj.Prog
if v.Op == ssa.OpAMD64DIVQ || v.Op == ssa.OpAMD64DIVL ||
v.Op == ssa.OpAMD64DIVW || v.Op == ssa.OpAMD64MODQ ||
v.Op == ssa.OpAMD64MODL || v.Op == ssa.OpAMD64MODW {
var c *obj.Prog
switch v.Op {
case ssa.OpAMD64DIVQ, ssa.OpAMD64MODQ:
c = gc.Prog(x86.ACMPQ)
j = gc.Prog(x86.AJEQ)
// go ahead and sign extend to save doing it later
gc.Prog(x86.ACQO)
case ssa.OpAMD64DIVL, ssa.OpAMD64MODL:
c = gc.Prog(x86.ACMPL)
j = gc.Prog(x86.AJEQ)
gc.Prog(x86.ACDQ)
case ssa.OpAMD64DIVW, ssa.OpAMD64MODW:
c = gc.Prog(x86.ACMPW)
j = gc.Prog(x86.AJEQ)
gc.Prog(x86.ACWD)
}
c.From.Type = obj.TYPE_REG
c.From.Reg = x
c.To.Type = obj.TYPE_CONST
c.To.Offset = -1
j.To.Type = obj.TYPE_BRANCH
}
// for unsigned ints, we sign extend by setting DX = 0
// signed ints were sign extended above
if v.Op == ssa.OpAMD64DIVQU || v.Op == ssa.OpAMD64MODQU ||
v.Op == ssa.OpAMD64DIVLU || v.Op == ssa.OpAMD64MODLU ||
v.Op == ssa.OpAMD64DIVWU || v.Op == ssa.OpAMD64MODWU {
c := gc.Prog(x86.AXORQ)
c.From.Type = obj.TYPE_REG
c.From.Reg = x86.REG_DX
c.To.Type = obj.TYPE_REG
c.To.Reg = x86.REG_DX
}
// Zero extend dividend.
c := gc.Prog(x86.AXORL)
c.From.Type = obj.TYPE_REG
c.From.Reg = x86.REG_DX
c.To.Type = obj.TYPE_REG
c.To.Reg = x86.REG_DX
// Issue divide.
p := gc.Prog(v.Op.Asm())
p.From.Type = obj.TYPE_REG
p.From.Reg = x
p.From.Reg = r
// signed division, rest of the check for -1 case
if j != nil {
j2 := gc.Prog(obj.AJMP)
j2.To.Type = obj.TYPE_BRANCH
case ssa.OpAMD64DIVQ, ssa.OpAMD64DIVL, ssa.OpAMD64DIVW:
// Arg[0] (the dividend) is in AX.
// Arg[1] (the divisor) can be in any other register.
// Result[0] (the quotient) is in AX.
// Result[1] (the remainder) is in DX.
r := gc.SSARegNum(v.Args[1])
var n *obj.Prog
if v.Op == ssa.OpAMD64DIVQ || v.Op == ssa.OpAMD64DIVL ||
v.Op == ssa.OpAMD64DIVW {
// n * -1 = -n
n = gc.Prog(x86.ANEGQ)
n.To.Type = obj.TYPE_REG
n.To.Reg = x86.REG_AX
} else {
// n % -1 == 0
n = gc.Prog(x86.AXORQ)
n.From.Type = obj.TYPE_REG
n.From.Reg = x86.REG_DX
n.To.Type = obj.TYPE_REG
n.To.Reg = x86.REG_DX
}
j.To.Val = n
j2.To.Val = s.Pc()
// CPU faults upon signed overflow, which occurs when the most
// negative int is divided by -1. Handle divide by -1 as a special case.
var c *obj.Prog
switch v.Op {
case ssa.OpAMD64DIVQ:
c = gc.Prog(x86.ACMPQ)
case ssa.OpAMD64DIVL:
c = gc.Prog(x86.ACMPL)
case ssa.OpAMD64DIVW:
c = gc.Prog(x86.ACMPW)
}
c.From.Type = obj.TYPE_REG
c.From.Reg = r
c.To.Type = obj.TYPE_CONST
c.To.Offset = -1
j1 := gc.Prog(x86.AJEQ)
j1.To.Type = obj.TYPE_BRANCH
// Sign extend dividend.
switch v.Op {
case ssa.OpAMD64DIVQ:
gc.Prog(x86.ACQO)
case ssa.OpAMD64DIVL:
gc.Prog(x86.ACDQ)
case ssa.OpAMD64DIVW:
gc.Prog(x86.ACWD)
}
// Issue divide.
p := gc.Prog(v.Op.Asm())
p.From.Type = obj.TYPE_REG
p.From.Reg = r
// Skip over -1 fixup code.
j2 := gc.Prog(obj.AJMP)
j2.To.Type = obj.TYPE_BRANCH
// Issue -1 fixup code.
// n / -1 = -n
n1 := gc.Prog(x86.ANEGQ)
n1.To.Type = obj.TYPE_REG
n1.To.Reg = x86.REG_AX
// n % -1 == 0
n2 := gc.Prog(x86.AXORL)
n2.From.Type = obj.TYPE_REG
n2.From.Reg = x86.REG_DX
n2.To.Type = obj.TYPE_REG
n2.To.Reg = x86.REG_DX
// TODO(khr): issue only the -1 fixup code we need.
// For instance, if only the quotient is used, no point in zeroing the remainder.
j1.To.Val = n1
j2.To.Val = s.Pc()
case ssa.OpAMD64HMULQ, ssa.OpAMD64HMULL, ssa.OpAMD64HMULW, ssa.OpAMD64HMULB,
ssa.OpAMD64HMULQU, ssa.OpAMD64HMULLU, ssa.OpAMD64HMULWU, ssa.OpAMD64HMULBU:
@ -818,6 +816,8 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) {
p.To.Reg = gc.SSARegNum(v)
case ssa.OpSP, ssa.OpSB:
// nothing to do
case ssa.OpSelect0, ssa.OpSelect1:
// nothing to do
case ssa.OpAMD64SETEQ, ssa.OpAMD64SETNE,
ssa.OpAMD64SETL, ssa.OpAMD64SETLE,
ssa.OpAMD64SETG, ssa.OpAMD64SETGE,

32
src/cmd/compile/internal/ssa/gen/AMD64.rules
View File

@ -29,14 +29,14 @@
(Div32F x y) -> (DIVSS x y)
(Div64F x y) -> (DIVSD x y)
(Div64 x y) -> (DIVQ x y)
(Div64u x y) -> (DIVQU x y)
(Div32 x y) -> (DIVL x y)
(Div32u x y) -> (DIVLU x y)
(Div16 x y) -> (DIVW x y)
(Div16u x y) -> (DIVWU x y)
(Div8 x y) -> (DIVW (SignExt8to16 x) (SignExt8to16 y))
(Div8u x y) -> (DIVWU (ZeroExt8to16 x) (ZeroExt8to16 y))
(Div64 x y) -> (Select0 (DIVQ x y <&TupleType{config.Frontend().TypeInt64(), config.Frontend().TypeInt64()}>))
(Div64u x y) -> (Select0 (DIVQU x y <&TupleType{config.Frontend().TypeUInt64(), config.Frontend().TypeUInt64()}>))
(Div32 x y) -> (Select0 (DIVL x y <&TupleType{config.Frontend().TypeInt32(), config.Frontend().TypeInt32()}>))
(Div32u x y) -> (Select0 (DIVLU x y <&TupleType{config.Frontend().TypeUInt32(), config.Frontend().TypeUInt32()}>))
(Div16 x y) -> (Select0 (DIVW x y <&TupleType{config.Frontend().TypeInt16(), config.Frontend().TypeInt16()}>))
(Div16u x y) -> (Select0 (DIVWU x y <&TupleType{config.Frontend().TypeUInt16(), config.Frontend().TypeUInt16()}>))
(Div8 x y) -> (Select0 (DIVW (SignExt8to16 x) (SignExt8to16 y) <&TupleType{config.Frontend().TypeInt8(), config.Frontend().TypeInt8()}>))
(Div8u x y) -> (Select0 (DIVWU (ZeroExt8to16 x) (ZeroExt8to16 y) <&TupleType{config.Frontend().TypeUInt8(), config.Frontend().TypeUInt8()}>))
(Hmul64 x y) -> (HMULQ x y)
(Hmul64u x y) -> (HMULQU x y)
@ -49,14 +49,14 @@
(Avg64u x y) -> (AVGQU x y)
(Mod64 x y) -> (MODQ x y)
(Mod64u x y) -> (MODQU x y)
(Mod32 x y) -> (MODL x y)
(Mod32u x y) -> (MODLU x y)
(Mod16 x y) -> (MODW x y)
(Mod16u x y) -> (MODWU x y)
(Mod8 x y) -> (MODW (SignExt8to16 x) (SignExt8to16 y))
(Mod8u x y) -> (MODWU (ZeroExt8to16 x) (ZeroExt8to16 y))
(Mod64 x y) -> (Select1 (DIVQ x y <&TupleType{config.Frontend().TypeInt64(), config.Frontend().TypeInt64()}>))
(Mod64u x y) -> (Select1 (DIVQU x y <&TupleType{config.Frontend().TypeUInt64(), config.Frontend().TypeUInt64()}>))
(Mod32 x y) -> (Select1 (DIVL x y <&TupleType{config.Frontend().TypeInt32(), config.Frontend().TypeInt32()}>))
(Mod32u x y) -> (Select1 (DIVLU x y <&TupleType{config.Frontend().TypeUInt32(), config.Frontend().TypeUInt32()}>))
(Mod16 x y) -> (Select1 (DIVW x y <&TupleType{config.Frontend().TypeInt16(), config.Frontend().TypeInt16()}>))
(Mod16u x y) -> (Select1 (DIVWU x y <&TupleType{config.Frontend().TypeUInt16(), config.Frontend().TypeUInt16()}>))
(Mod8 x y) -> (Select1 (DIVW (SignExt8to16 x) (SignExt8to16 y) <&TupleType{config.Frontend().TypeInt8(), config.Frontend().TypeInt8()}>))
(Mod8u x y) -> (Select1 (DIVWU (ZeroExt8to16 x) (ZeroExt8to16 y) <&TupleType{config.Frontend().TypeUInt8(), config.Frontend().TypeUInt8()}>))
(And64 x y) -> (ANDQ x y)
(And32 x y) -> (ANDL x y)

25
src/cmd/compile/internal/ssa/gen/AMD64Ops.go
View File

@ -119,12 +119,10 @@ func init() {
gp21sp = regInfo{inputs: []regMask{gpsp, gp}, outputs: gponly, clobbers: flags}
gp21sb = regInfo{inputs: []regMask{gpspsb, gpsp}, outputs: gponly}
gp21shift = regInfo{inputs: []regMask{gp, cx}, outputs: []regMask{gp}, clobbers: flags}
gp11div = regInfo{inputs: []regMask{ax, gpsp &^ dx}, outputs: []regMask{ax},
clobbers: dx | flags}
gp11div = regInfo{inputs: []regMask{ax, gpsp &^ dx}, outputs: []regMask{ax, dx},
clobbers: flags}
gp11hmul = regInfo{inputs: []regMask{ax, gpsp}, outputs: []regMask{dx},
clobbers: ax | flags}
gp11mod = regInfo{inputs: []regMask{ax, gpsp &^ dx}, outputs: []regMask{dx},
clobbers: ax | flags}
gp2flags = regInfo{inputs: []regMask{gpsp, gpsp}, outputs: flagsonly}
gp1flags = regInfo{inputs: []regMask{gpsp}, outputs: flagsonly}
@ -214,19 +212,12 @@ func init() {
{name: "AVGQU", argLength: 2, reg: gp21, commutative: true, resultInArg0: true}, // (arg0 + arg1) / 2 as unsigned, all 64 result bits
{name: "DIVQ", argLength: 2, reg: gp11div, asm: "IDIVQ"}, // arg0 / arg1
{name: "DIVL", argLength: 2, reg: gp11div, asm: "IDIVL"}, // arg0 / arg1
{name: "DIVW", argLength: 2, reg: gp11div, asm: "IDIVW"}, // arg0 / arg1
{name: "DIVQU", argLength: 2, reg: gp11div, asm: "DIVQ"}, // arg0 / arg1
{name: "DIVLU", argLength: 2, reg: gp11div, asm: "DIVL"}, // arg0 / arg1
{name: "DIVWU", argLength: 2, reg: gp11div, asm: "DIVW"}, // arg0 / arg1
{name: "MODQ", argLength: 2, reg: gp11mod, asm: "IDIVQ"}, // arg0 % arg1
{name: "MODL", argLength: 2, reg: gp11mod, asm: "IDIVL"}, // arg0 % arg1
{name: "MODW", argLength: 2, reg: gp11mod, asm: "IDIVW"}, // arg0 % arg1
{name: "MODQU", argLength: 2, reg: gp11mod, asm: "DIVQ"}, // arg0 % arg1
{name: "MODLU", argLength: 2, reg: gp11mod, asm: "DIVL"}, // arg0 % arg1
{name: "MODWU", argLength: 2, reg: gp11mod, asm: "DIVW"}, // arg0 % arg1
{name: "DIVQ", argLength: 2, reg: gp11div, asm: "IDIVQ"}, // [arg0 / arg1, arg0 % arg1]
{name: "DIVL", argLength: 2, reg: gp11div, asm: "IDIVL"}, // [arg0 / arg1, arg0 % arg1]
{name: "DIVW", argLength: 2, reg: gp11div, asm: "IDIVW"}, // [arg0 / arg1, arg0 % arg1]
{name: "DIVQU", argLength: 2, reg: gp11div, asm: "DIVQ"}, // [arg0 / arg1, arg0 % arg1]
{name: "DIVLU", argLength: 2, reg: gp11div, asm: "DIVL"}, // [arg0 / arg1, arg0 % arg1]
{name: "DIVWU", argLength: 2, reg: gp11div, asm: "DIVW"}, // [arg0 / arg1, arg0 % arg1]
{name: "ANDQ", argLength: 2, reg: gp21, asm: "ANDQ", commutative: true, resultInArg0: true}, // arg0 & arg1
{name: "ANDL", argLength: 2, reg: gp21, asm: "ANDL", commutative: true, resultInArg0: true}, // arg0 & arg1

122
src/cmd/compile/internal/ssa/opGen.go
View File

@ -368,12 +368,6 @@ const (
OpAMD64DIVQU
OpAMD64DIVLU
OpAMD64DIVWU
OpAMD64MODQ
OpAMD64MODL
OpAMD64MODW
OpAMD64MODQU
OpAMD64MODLU
OpAMD64MODWU
OpAMD64ANDQ
OpAMD64ANDL
OpAMD64ANDQconst
@ -4129,9 +4123,10 @@ var opcodeTable = [...]opInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934596, // DX FLAGS
clobbers: 8589934592, // FLAGS
outputs: []outputInfo{
{0, 1}, // AX
{1, 4}, // DX
},
},
},
@ -4144,9 +4139,10 @@ var opcodeTable = [...]opInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934596, // DX FLAGS
clobbers: 8589934592, // FLAGS
outputs: []outputInfo{
{0, 1}, // AX
{1, 4}, // DX
},
},
},
@ -4159,9 +4155,10 @@ var opcodeTable = [...]opInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934596, // DX FLAGS
clobbers: 8589934592, // FLAGS
outputs: []outputInfo{
{0, 1}, // AX
{1, 4}, // DX
},
},
},
@ -4174,9 +4171,10 @@ var opcodeTable = [...]opInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934596, // DX FLAGS
clobbers: 8589934592, // FLAGS
outputs: []outputInfo{
{0, 1}, // AX
{1, 4}, // DX
},
},
},
@ -4189,9 +4187,10 @@ var opcodeTable = [...]opInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934596, // DX FLAGS
clobbers: 8589934592, // FLAGS
outputs: []outputInfo{
{0, 1}, // AX
{1, 4}, // DX
},
},
},
@ -4204,99 +4203,10 @@ var opcodeTable = [...]opInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934596, // DX FLAGS
clobbers: 8589934592, // FLAGS
outputs: []outputInfo{
{0, 1}, // AX
},
},
},
{
name: "MODQ",
argLen: 2,
asm: x86.AIDIVQ,
reg: regInfo{
inputs: []inputInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934593, // AX FLAGS
outputs: []outputInfo{
{0, 4}, // DX
},
},
},
{
name: "MODL",
argLen: 2,
asm: x86.AIDIVL,
reg: regInfo{
inputs: []inputInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934593, // AX FLAGS
outputs: []outputInfo{
{0, 4}, // DX
},
},
},
{
name: "MODW",
argLen: 2,
asm: x86.AIDIVW,
reg: regInfo{
inputs: []inputInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934593, // AX FLAGS
outputs: []outputInfo{
{0, 4}, // DX
},
},
},
{
name: "MODQU",
argLen: 2,
asm: x86.ADIVQ,
reg: regInfo{
inputs: []inputInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934593, // AX FLAGS
outputs: []outputInfo{
{0, 4}, // DX
},
},
},
{
name: "MODLU",
argLen: 2,
asm: x86.ADIVL,
reg: regInfo{
inputs: []inputInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934593, // AX FLAGS
outputs: []outputInfo{
{0, 4}, // DX
},
},
},
{
name: "MODWU",
argLen: 2,
asm: x86.ADIVW,
reg: regInfo{
inputs: []inputInfo{
{0, 1}, // AX
{1, 65531}, // AX CX BX SP BP SI DI R8 R9 R10 R11 R12 R13 R14 R15
},
clobbers: 8589934593, // AX FLAGS
outputs: []outputInfo{
{0, 4}, // DX
{1, 4}, // DX
},
},
},
@ -8909,8 +8819,8 @@ var opcodeTable = [...]opInfo{
inputs: []inputInfo{
{0, 4294901760}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15
},
outputs: []regMask{
4294967296, // FLAGS
outputs: []outputInfo{
{0, 4294967296}, // FLAGS
},
},
},
@ -8922,8 +8832,8 @@ var opcodeTable = [...]opInfo{
inputs: []inputInfo{
{0, 4294901760}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15
},
outputs: []regMask{
4294967296, // FLAGS
outputs: []outputInfo{
{0, 4294967296}, // FLAGS
},
},
},

184
src/cmd/compile/internal/ssa/rewriteAMD64.go
View File

@ -3275,13 +3275,15 @@ func rewriteValueAMD64_OpDiv16(v *Value, config *Config) bool {
_ = b
// match: (Div16 x y)
// cond:
// result: (DIVW x y)
// result: (Select0 (DIVW x y <&TupleType{config.Frontend().TypeInt16(), config.Frontend().TypeInt16()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64DIVW)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect0)
v0 := b.NewValue0(v.Line, OpAMD64DIVW, &TupleType{config.Frontend().TypeInt16(), config.Frontend().TypeInt16()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -3290,13 +3292,15 @@ func rewriteValueAMD64_OpDiv16u(v *Value, config *Config) bool {
_ = b
// match: (Div16u x y)
// cond:
// result: (DIVWU x y)
// result: (Select0 (DIVWU x y <&TupleType{config.Frontend().TypeUInt16(), config.Frontend().TypeUInt16()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64DIVWU)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect0)
v0 := b.NewValue0(v.Line, OpAMD64DIVWU, &TupleType{config.Frontend().TypeUInt16(), config.Frontend().TypeUInt16()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -3305,13 +3309,15 @@ func rewriteValueAMD64_OpDiv32(v *Value, config *Config) bool {
_ = b
// match: (Div32 x y)
// cond:
// result: (DIVL x y)
// result: (Select0 (DIVL x y <&TupleType{config.Frontend().TypeInt32(), config.Frontend().TypeInt32()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64DIVL)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect0)
v0 := b.NewValue0(v.Line, OpAMD64DIVL, &TupleType{config.Frontend().TypeInt32(), config.Frontend().TypeInt32()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -3335,13 +3341,15 @@ func rewriteValueAMD64_OpDiv32u(v *Value, config *Config) bool {
_ = b
// match: (Div32u x y)
// cond:
// result: (DIVLU x y)
// result: (Select0 (DIVLU x y <&TupleType{config.Frontend().TypeUInt32(), config.Frontend().TypeUInt32()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64DIVLU)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect0)
v0 := b.NewValue0(v.Line, OpAMD64DIVLU, &TupleType{config.Frontend().TypeUInt32(), config.Frontend().TypeUInt32()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -3350,13 +3358,15 @@ func rewriteValueAMD64_OpDiv64(v *Value, config *Config) bool {
_ = b
// match: (Div64 x y)
// cond:
// result: (DIVQ x y)
// result: (Select0 (DIVQ x y <&TupleType{config.Frontend().TypeInt64(), config.Frontend().TypeInt64()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64DIVQ)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect0)
v0 := b.NewValue0(v.Line, OpAMD64DIVQ, &TupleType{config.Frontend().TypeInt64(), config.Frontend().TypeInt64()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -3380,13 +3390,15 @@ func rewriteValueAMD64_OpDiv64u(v *Value, config *Config) bool {
_ = b
// match: (Div64u x y)
// cond:
// result: (DIVQU x y)
// result: (Select0 (DIVQU x y <&TupleType{config.Frontend().TypeUInt64(), config.Frontend().TypeUInt64()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64DIVQU)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect0)
v0 := b.NewValue0(v.Line, OpAMD64DIVQU, &TupleType{config.Frontend().TypeUInt64(), config.Frontend().TypeUInt64()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -3395,17 +3407,19 @@ func rewriteValueAMD64_OpDiv8(v *Value, config *Config) bool {
_ = b
// match: (Div8 x y)
// cond:
// result: (DIVW (SignExt8to16 x) (SignExt8to16 y))
// result: (Select0 (DIVW (SignExt8to16 x) (SignExt8to16 y) <&TupleType{config.Frontend().TypeInt8(), config.Frontend().TypeInt8()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64DIVW)
v0 := b.NewValue0(v.Line, OpSignExt8to16, config.fe.TypeInt16())
v0.AddArg(x)
v.AddArg(v0)
v.reset(OpSelect0)
v0 := b.NewValue0(v.Line, OpAMD64DIVW, &TupleType{config.Frontend().TypeInt8(), config.Frontend().TypeInt8()})
v1 := b.NewValue0(v.Line, OpSignExt8to16, config.fe.TypeInt16())
v1.AddArg(y)
v.AddArg(v1)
v1.AddArg(x)
v0.AddArg(v1)
v2 := b.NewValue0(v.Line, OpSignExt8to16, config.fe.TypeInt16())
v2.AddArg(y)
v0.AddArg(v2)
v.AddArg(v0)
return true
}
}
@ -3414,17 +3428,19 @@ func rewriteValueAMD64_OpDiv8u(v *Value, config *Config) bool {
_ = b
// match: (Div8u x y)
// cond:
// result: (DIVWU (ZeroExt8to16 x) (ZeroExt8to16 y))
// result: (Select0 (DIVWU (ZeroExt8to16 x) (ZeroExt8to16 y) <&TupleType{config.Frontend().TypeUInt8(), config.Frontend().TypeUInt8()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64DIVWU)
v0 := b.NewValue0(v.Line, OpZeroExt8to16, config.fe.TypeUInt16())
v0.AddArg(x)
v.AddArg(v0)
v.reset(OpSelect0)
v0 := b.NewValue0(v.Line, OpAMD64DIVWU, &TupleType{config.Frontend().TypeUInt8(), config.Frontend().TypeUInt8()})
v1 := b.NewValue0(v.Line, OpZeroExt8to16, config.fe.TypeUInt16())
v1.AddArg(y)
v.AddArg(v1)
v1.AddArg(x)
v0.AddArg(v1)
v2 := b.NewValue0(v.Line, OpZeroExt8to16, config.fe.TypeUInt16())
v2.AddArg(y)
v0.AddArg(v2)
v.AddArg(v0)
return true
}
}
@ -11892,13 +11908,15 @@ func rewriteValueAMD64_OpMod16(v *Value, config *Config) bool {
_ = b
// match: (Mod16 x y)
// cond:
// result: (MODW x y)
// result: (Select1 (DIVW x y <&TupleType{config.Frontend().TypeInt16(), config.Frontend().TypeInt16()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64MODW)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect1)
v0 := b.NewValue0(v.Line, OpAMD64DIVW, &TupleType{config.Frontend().TypeInt16(), config.Frontend().TypeInt16()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -11907,13 +11925,15 @@ func rewriteValueAMD64_OpMod16u(v *Value, config *Config) bool {
_ = b
// match: (Mod16u x y)
// cond:
// result: (MODWU x y)
// result: (Select1 (DIVWU x y <&TupleType{config.Frontend().TypeUInt16(), config.Frontend().TypeUInt16()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64MODWU)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect1)
v0 := b.NewValue0(v.Line, OpAMD64DIVWU, &TupleType{config.Frontend().TypeUInt16(), config.Frontend().TypeUInt16()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -11922,13 +11942,15 @@ func rewriteValueAMD64_OpMod32(v *Value, config *Config) bool {
_ = b
// match: (Mod32 x y)
// cond:
// result: (MODL x y)
// result: (Select1 (DIVL x y <&TupleType{config.Frontend().TypeInt32(), config.Frontend().TypeInt32()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64MODL)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect1)
v0 := b.NewValue0(v.Line, OpAMD64DIVL, &TupleType{config.Frontend().TypeInt32(), config.Frontend().TypeInt32()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -11937,13 +11959,15 @@ func rewriteValueAMD64_OpMod32u(v *Value, config *Config) bool {
_ = b
// match: (Mod32u x y)
// cond:
// result: (MODLU x y)
// result: (Select1 (DIVLU x y <&TupleType{config.Frontend().TypeUInt32(), config.Frontend().TypeUInt32()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64MODLU)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect1)
v0 := b.NewValue0(v.Line, OpAMD64DIVLU, &TupleType{config.Frontend().TypeUInt32(), config.Frontend().TypeUInt32()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -11952,13 +11976,15 @@ func rewriteValueAMD64_OpMod64(v *Value, config *Config) bool {
_ = b
// match: (Mod64 x y)
// cond:
// result: (MODQ x y)
// result: (Select1 (DIVQ x y <&TupleType{config.Frontend().TypeInt64(), config.Frontend().TypeInt64()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64MODQ)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect1)
v0 := b.NewValue0(v.Line, OpAMD64DIVQ, &TupleType{config.Frontend().TypeInt64(), config.Frontend().TypeInt64()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -11967,13 +11993,15 @@ func rewriteValueAMD64_OpMod64u(v *Value, config *Config) bool {
_ = b
// match: (Mod64u x y)
// cond:
// result: (MODQU x y)
// result: (Select1 (DIVQU x y <&TupleType{config.Frontend().TypeUInt64(), config.Frontend().TypeUInt64()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64MODQU)
v.AddArg(x)
v.AddArg(y)
v.reset(OpSelect1)
v0 := b.NewValue0(v.Line, OpAMD64DIVQU, &TupleType{config.Frontend().TypeUInt64(), config.Frontend().TypeUInt64()})
v0.AddArg(x)
v0.AddArg(y)
v.AddArg(v0)
return true
}
}
@ -11982,17 +12010,19 @@ func rewriteValueAMD64_OpMod8(v *Value, config *Config) bool {
_ = b
// match: (Mod8 x y)
// cond:
// result: (MODW (SignExt8to16 x) (SignExt8to16 y))
// result: (Select1 (DIVW (SignExt8to16 x) (SignExt8to16 y) <&TupleType{config.Frontend().TypeInt8(), config.Frontend().TypeInt8()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64MODW)
v0 := b.NewValue0(v.Line, OpSignExt8to16, config.fe.TypeInt16())
v0.AddArg(x)
v.AddArg(v0)
v.reset(OpSelect1)
v0 := b.NewValue0(v.Line, OpAMD64DIVW, &TupleType{config.Frontend().TypeInt8(), config.Frontend().TypeInt8()})
v1 := b.NewValue0(v.Line, OpSignExt8to16, config.fe.TypeInt16())
v1.AddArg(y)
v.AddArg(v1)
v1.AddArg(x)
v0.AddArg(v1)
v2 := b.NewValue0(v.Line, OpSignExt8to16, config.fe.TypeInt16())
v2.AddArg(y)
v0.AddArg(v2)
v.AddArg(v0)
return true
}
}
@ -12001,17 +12031,19 @@ func rewriteValueAMD64_OpMod8u(v *Value, config *Config) bool {
_ = b
// match: (Mod8u x y)
// cond:
// result: (MODWU (ZeroExt8to16 x) (ZeroExt8to16 y))
// result: (Select1 (DIVWU (ZeroExt8to16 x) (ZeroExt8to16 y) <&TupleType{config.Frontend().TypeUInt8(), config.Frontend().TypeUInt8()}>))
for {
x := v.Args[0]
y := v.Args[1]
v.reset(OpAMD64MODWU)
v0 := b.NewValue0(v.Line, OpZeroExt8to16, config.fe.TypeUInt16())
v0.AddArg(x)
v.AddArg(v0)
v.reset(OpSelect1)
v0 := b.NewValue0(v.Line, OpAMD64DIVWU, &TupleType{config.Frontend().TypeUInt8(), config.Frontend().TypeUInt8()})
v1 := b.NewValue0(v.Line, OpZeroExt8to16, config.fe.TypeUInt16())
v1.AddArg(y)
v.AddArg(v1)
v1.AddArg(x)
v0.AddArg(v1)
v2 := b.NewValue0(v.Line, OpZeroExt8to16, config.fe.TypeUInt16())
v2.AddArg(y)
v0.AddArg(v2)
v.AddArg(v0)
return true
}
}