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cmd/compile/internal/ssa: cleanup ANDCCconst rewrite rules on PPC64 

Avoid creating duplicate usages of ANDCCconst. This is preparation for
a patch to reintroduce ANDconst to simplify the lower pass while
treating ANDCCconst like other *CC* ssa opcodes.

Also, move many of the similar rules wich retarget ANDCCconst users
to the flag result to a common rule for all compares against zero.

Change-Id: Ida86efe17ff413cb82c349d8ef69d2899361f4c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/585400
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This commit is contained in:
Paul E. Murphy 2024-05-02 15:05:27 -05:00 committed by Paul Murphy
parent 2f6426834c
commit d11e417285
3 changed files with 140 additions and 394 deletions
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18
src/cmd/compile/internal/ssa/_gen/PPC64.rules
View File

@ -322,11 +322,11 @@
(If (FGreaterThan cc) yes no) => (FGT cc yes no)
(If (FGreaterEqual cc) yes no) => (FGE cc yes no)
(If cond yes no) => (NE (CMPWconst [0] (Select0 <typ.UInt32> (ANDCCconst [1] cond))) yes no)
(If cond yes no) => (NE (Select1 <types.TypeFlags> (ANDCCconst [1] cond)) yes no)
// Absorb boolean tests into block
(NE (CMPWconst [0] (Select0 (ANDCCconst [1] ((Equal|NotEqual|LessThan|LessEqual|GreaterThan|GreaterEqual) cc)))) yes no) => ((EQ|NE|LT|LE|GT|GE) cc yes no)
(NE (CMPWconst [0] (Select0 (ANDCCconst [1] ((FLessThan|FLessEqual|FGreaterThan|FGreaterEqual) cc)))) yes no) => ((FLT|FLE|FGT|FGE) cc yes no)
(NE (Select1 (ANDCCconst [1] ((Equal|NotEqual|LessThan|LessEqual|GreaterThan|GreaterEqual) cc))) yes no) => ((EQ|NE|LT|LE|GT|GE) cc yes no)
(NE (Select1 (ANDCCconst [1] ((FLessThan|FLessEqual|FGreaterThan|FGreaterEqual) cc))) yes no) => ((FLT|FLE|FGT|FGE) cc yes no)
// absorb flag constants into branches
(EQ (FlagEQ) yes no) => (First yes no)
@ -894,6 +894,9 @@
// Canonicalize the order of arguments to comparisons - helps with CSE.
((CMP|CMPW|CMPU|CMPWU) x y) && canonLessThan(x,y) => (InvertFlags ((CMP|CMPW|CMPU|CMPWU) y x))
// n is always a zero-extended uint16 value, so n & z is always a non-negative 32 or 64 bit value. Use the flag result of ANDCCconst.
((CMP|CMPW|CMPU|CMPWU)const [0] (Select0 a:(ANDCCconst [n] z))) => (Select1 <types.TypeFlags> a)
// SETBC auxInt values 0=LT 1=GT 2=EQ Crbit==1 ? 1 : 0
// SETBCR auxInt values 0=LT 1=GT 2=EQ Crbit==1 ? 0 : 1
(Equal cmp) => (SETBC [2] cmp)
@ -950,8 +953,6 @@
(ISEL [4] x _ (Flag(EQ|GT))) => x
(ISEL [4] _ y (FlagLT)) => y
(ISEL [2] x y ((CMP|CMPW)const [0] (Select0 (ANDCCconst [n] z)))) => (ISEL [2] x y (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
(ISEL [6] x y ((CMP|CMPW)const [0] (Select0 (ANDCCconst [n] z)))) => (ISEL [6] x y (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
(SETBC [n] (InvertFlags bool)) => (SETBCR [n] bool)
(SETBCR [n] (InvertFlags bool)) => (SETBC [n] bool)
@ -961,11 +962,8 @@
(XORconst [1] (SETBCR [n] cmp)) => (SETBC [n] cmp)
(XORconst [1] (SETBC [n] cmp)) => (SETBCR [n] cmp)
(SETBC [2] ((CMP|CMPW)const [0] (Select0 (ANDCCconst [1] z)))) => (XORconst [1] (Select0 <typ.UInt64> (ANDCCconst [1] z )))
(SETBCR [2] ((CMP|CMPW)const [0] (Select0 (ANDCCconst [1] z)))) => (Select0 <typ.UInt64> (ANDCCconst [1] z ))
(SETBC [2] (CMPWconst [0] (Select0 (ANDCCconst [n] z)))) => (SETBC [2] (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
(SETBCR [2] (CMPWconst [0] (Select0 (ANDCCconst [n] z)))) => (SETBCR [2] (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
(SETBC [2] (Select1 a:(ANDCCconst <t> [1] _))) => (XORconst [1] (Select0 <t.FieldType(0)> a))
(SETBCR [2] (Select1 a:(ANDCCconst [1] _))) => (Select0 a)
// Only CMPconst for these in case AND|OR|XOR result is > 32 bits
(SETBC [2] (CMPconst [0] a:(AND y z))) && a.Uses == 1 => (SETBC [2] (Select1 <types.TypeFlags> (ANDCC y z )))

512
src/cmd/compile/internal/ssa/rewritePPC64.go
View File

@ -4849,6 +4849,21 @@ func rewriteValuePPC64_OpPPC64CMPUconst(v *Value) bool {
v.reset(OpPPC64FlagGT)
return true
}
// match: (CMPUconst [0] (Select0 a:(ANDCCconst [n] z)))
// result: (Select1 <types.TypeFlags> a)
for {
if auxIntToInt64(v.AuxInt) != 0 || v_0.Op != OpSelect0 {
break
}
a := v_0.Args[0]
if a.Op != OpPPC64ANDCCconst {
break
}
v.reset(OpSelect1)
v.Type = types.TypeFlags
v.AddArg(a)
return true
}
return false
}
func rewriteValuePPC64_OpPPC64CMPW(v *Value) bool {
@ -5079,6 +5094,21 @@ func rewriteValuePPC64_OpPPC64CMPWUconst(v *Value) bool {
v.reset(OpPPC64FlagGT)
return true
}
// match: (CMPWUconst [0] (Select0 a:(ANDCCconst [n] z)))
// result: (Select1 <types.TypeFlags> a)
for {
if auxIntToInt32(v.AuxInt) != 0 || v_0.Op != OpSelect0 {
break
}
a := v_0.Args[0]
if a.Op != OpPPC64ANDCCconst {
break
}
v.reset(OpSelect1)
v.Type = types.TypeFlags
v.AddArg(a)
return true
}
return false
}
func rewriteValuePPC64_OpPPC64CMPWconst(v *Value) bool {
@ -5128,6 +5158,21 @@ func rewriteValuePPC64_OpPPC64CMPWconst(v *Value) bool {
v.reset(OpPPC64FlagGT)
return true
}
// match: (CMPWconst [0] (Select0 a:(ANDCCconst [n] z)))
// result: (Select1 <types.TypeFlags> a)
for {
if auxIntToInt32(v.AuxInt) != 0 || v_0.Op != OpSelect0 {
break
}
a := v_0.Args[0]
if a.Op != OpPPC64ANDCCconst {
break
}
v.reset(OpSelect1)
v.Type = types.TypeFlags
v.AddArg(a)
return true
}
return false
}
func rewriteValuePPC64_OpPPC64CMPconst(v *Value) bool {
@ -5177,6 +5222,21 @@ func rewriteValuePPC64_OpPPC64CMPconst(v *Value) bool {
v.reset(OpPPC64FlagGT)
return true
}
// match: (CMPconst [0] (Select0 a:(ANDCCconst [n] z)))
// result: (Select1 <types.TypeFlags> a)
for {
if auxIntToInt64(v.AuxInt) != 0 || v_0.Op != OpSelect0 {
break
}
a := v_0.Args[0]
if a.Op != OpPPC64ANDCCconst {
break
}
v.reset(OpSelect1)
v.Type = types.TypeFlags
v.AddArg(a)
return true
}
return false
}
func rewriteValuePPC64_OpPPC64Equal(v *Value) bool {
@ -5861,8 +5921,6 @@ func rewriteValuePPC64_OpPPC64ISEL(v *Value) bool {
v_2 := v.Args[2]
v_1 := v.Args[1]
v_0 := v.Args[0]
b := v.Block
typ := &b.Func.Config.Types
// match: (ISEL [6] x y (Select1 (ANDCCconst [1] (SETBC [c] cmp))))
// result: (ISEL [c] x y cmp)
for {
@ -6211,130 +6269,6 @@ func rewriteValuePPC64_OpPPC64ISEL(v *Value) bool {
v.copyOf(y)
return true
}
// match: (ISEL [2] x y (CMPconst [0] (Select0 (ANDCCconst [n] z))))
// result: (ISEL [2] x y (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
for {
if auxIntToInt32(v.AuxInt) != 2 {
break
}
x := v_0
y := v_1
if v_2.Op != OpPPC64CMPconst || auxIntToInt64(v_2.AuxInt) != 0 {
break
}
v_2_0 := v_2.Args[0]
if v_2_0.Op != OpSelect0 {
break
}
v_2_0_0 := v_2_0.Args[0]
if v_2_0_0.Op != OpPPC64ANDCCconst {
break
}
n := auxIntToInt64(v_2_0_0.AuxInt)
z := v_2_0_0.Args[0]
v.reset(OpPPC64ISEL)
v.AuxInt = int32ToAuxInt(2)
v0 := b.NewValue0(v.Pos, OpSelect1, types.TypeFlags)
v1 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v1.AuxInt = int64ToAuxInt(n)
v1.AddArg(z)
v0.AddArg(v1)
v.AddArg3(x, y, v0)
return true
}
// match: (ISEL [2] x y (CMPWconst [0] (Select0 (ANDCCconst [n] z))))
// result: (ISEL [2] x y (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
for {
if auxIntToInt32(v.AuxInt) != 2 {
break
}
x := v_0
y := v_1
if v_2.Op != OpPPC64CMPWconst || auxIntToInt32(v_2.AuxInt) != 0 {
break
}
v_2_0 := v_2.Args[0]
if v_2_0.Op != OpSelect0 {
break
}
v_2_0_0 := v_2_0.Args[0]
if v_2_0_0.Op != OpPPC64ANDCCconst {
break
}
n := auxIntToInt64(v_2_0_0.AuxInt)
z := v_2_0_0.Args[0]
v.reset(OpPPC64ISEL)
v.AuxInt = int32ToAuxInt(2)
v0 := b.NewValue0(v.Pos, OpSelect1, types.TypeFlags)
v1 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v1.AuxInt = int64ToAuxInt(n)
v1.AddArg(z)
v0.AddArg(v1)
v.AddArg3(x, y, v0)
return true
}
// match: (ISEL [6] x y (CMPconst [0] (Select0 (ANDCCconst [n] z))))
// result: (ISEL [6] x y (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
for {
if auxIntToInt32(v.AuxInt) != 6 {
break
}
x := v_0
y := v_1
if v_2.Op != OpPPC64CMPconst || auxIntToInt64(v_2.AuxInt) != 0 {
break
}
v_2_0 := v_2.Args[0]
if v_2_0.Op != OpSelect0 {
break
}
v_2_0_0 := v_2_0.Args[0]
if v_2_0_0.Op != OpPPC64ANDCCconst {
break
}
n := auxIntToInt64(v_2_0_0.AuxInt)
z := v_2_0_0.Args[0]
v.reset(OpPPC64ISEL)
v.AuxInt = int32ToAuxInt(6)
v0 := b.NewValue0(v.Pos, OpSelect1, types.TypeFlags)
v1 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v1.AuxInt = int64ToAuxInt(n)
v1.AddArg(z)
v0.AddArg(v1)
v.AddArg3(x, y, v0)
return true
}
// match: (ISEL [6] x y (CMPWconst [0] (Select0 (ANDCCconst [n] z))))
// result: (ISEL [6] x y (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
for {
if auxIntToInt32(v.AuxInt) != 6 {
break
}
x := v_0
y := v_1
if v_2.Op != OpPPC64CMPWconst || auxIntToInt32(v_2.AuxInt) != 0 {
break
}
v_2_0 := v_2.Args[0]
if v_2_0.Op != OpSelect0 {
break
}
v_2_0_0 := v_2_0.Args[0]
if v_2_0_0.Op != OpPPC64ANDCCconst {
break
}
n := auxIntToInt64(v_2_0_0.AuxInt)
z := v_2_0_0.Args[0]
v.reset(OpPPC64ISEL)
v.AuxInt = int32ToAuxInt(6)
v0 := b.NewValue0(v.Pos, OpSelect1, types.TypeFlags)
v1 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v1.AuxInt = int64ToAuxInt(n)
v1.AddArg(z)
v0.AddArg(v1)
v.AddArg3(x, y, v0)
return true
}
// match: (ISEL [n] x y (InvertFlags bool))
// cond: n%4 == 0
// result: (ISEL [n+1] x y bool)
@ -11701,79 +11635,24 @@ func rewriteValuePPC64_OpPPC64SETBC(v *Value) bool {
v.AddArg(bool)
return true
}
// match: (SETBC [2] (CMPconst [0] (Select0 (ANDCCconst [1] z))))
// result: (XORconst [1] (Select0 <typ.UInt64> (ANDCCconst [1] z )))
// match: (SETBC [2] (Select1 a:(ANDCCconst <t> [1] _)))
// result: (XORconst [1] (Select0 <t.FieldType(0)> a))
for {
if auxIntToInt32(v.AuxInt) != 2 || v_0.Op != OpPPC64CMPconst || auxIntToInt64(v_0.AuxInt) != 0 {
if auxIntToInt32(v.AuxInt) != 2 || v_0.Op != OpSelect1 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
a := v_0.Args[0]
if a.Op != OpPPC64ANDCCconst {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
t := a.Type
if auxIntToInt64(a.AuxInt) != 1 {
break
}
z := v_0_0_0.Args[0]
v.reset(OpPPC64XORconst)
v.AuxInt = int64ToAuxInt(1)
v0 := b.NewValue0(v.Pos, OpSelect0, typ.UInt64)
v1 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v1.AuxInt = int64ToAuxInt(1)
v1.AddArg(z)
v0.AddArg(v1)
v.AddArg(v0)
return true
}
// match: (SETBC [2] (CMPWconst [0] (Select0 (ANDCCconst [1] z))))
// result: (XORconst [1] (Select0 <typ.UInt64> (ANDCCconst [1] z )))
for {
if auxIntToInt32(v.AuxInt) != 2 || v_0.Op != OpPPC64CMPWconst || auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
break
}
z := v_0_0_0.Args[0]
v.reset(OpPPC64XORconst)
v.AuxInt = int64ToAuxInt(1)
v0 := b.NewValue0(v.Pos, OpSelect0, typ.UInt64)
v1 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v1.AuxInt = int64ToAuxInt(1)
v1.AddArg(z)
v0.AddArg(v1)
v.AddArg(v0)
return true
}
// match: (SETBC [2] (CMPWconst [0] (Select0 (ANDCCconst [n] z))))
// result: (SETBC [2] (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
for {
if auxIntToInt32(v.AuxInt) != 2 || v_0.Op != OpPPC64CMPWconst || auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst {
break
}
n := auxIntToInt64(v_0_0_0.AuxInt)
z := v_0_0_0.Args[0]
v.reset(OpPPC64SETBC)
v.AuxInt = int32ToAuxInt(2)
v0 := b.NewValue0(v.Pos, OpSelect1, types.TypeFlags)
v1 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v1.AuxInt = int64ToAuxInt(n)
v1.AddArg(z)
v0.AddArg(v1)
v0 := b.NewValue0(v.Pos, OpSelect0, t.FieldType(0))
v0.AddArg(a)
v.AddArg(v0)
return true
}
@ -11997,76 +11876,18 @@ func rewriteValuePPC64_OpPPC64SETBCR(v *Value) bool {
v.AddArg(bool)
return true
}
// match: (SETBCR [2] (CMPconst [0] (Select0 (ANDCCconst [1] z))))
// result: (Select0 <typ.UInt64> (ANDCCconst [1] z ))
// match: (SETBCR [2] (Select1 a:(ANDCCconst [1] _)))
// result: (Select0 a)
for {
if auxIntToInt32(v.AuxInt) != 2 || v_0.Op != OpPPC64CMPconst || auxIntToInt64(v_0.AuxInt) != 0 {
if auxIntToInt32(v.AuxInt) != 2 || v_0.Op != OpSelect1 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
a := v_0.Args[0]
if a.Op != OpPPC64ANDCCconst || auxIntToInt64(a.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
break
}
z := v_0_0_0.Args[0]
v.reset(OpSelect0)
v.Type = typ.UInt64
v0 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v0.AuxInt = int64ToAuxInt(1)
v0.AddArg(z)
v.AddArg(v0)
return true
}
// match: (SETBCR [2] (CMPWconst [0] (Select0 (ANDCCconst [1] z))))
// result: (Select0 <typ.UInt64> (ANDCCconst [1] z ))
for {
if auxIntToInt32(v.AuxInt) != 2 || v_0.Op != OpPPC64CMPWconst || auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
break
}
z := v_0_0_0.Args[0]
v.reset(OpSelect0)
v.Type = typ.UInt64
v0 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v0.AuxInt = int64ToAuxInt(1)
v0.AddArg(z)
v.AddArg(v0)
return true
}
// match: (SETBCR [2] (CMPWconst [0] (Select0 (ANDCCconst [n] z))))
// result: (SETBCR [2] (Select1 <types.TypeFlags> (ANDCCconst [n] z )))
for {
if auxIntToInt32(v.AuxInt) != 2 || v_0.Op != OpPPC64CMPWconst || auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst {
break
}
n := auxIntToInt64(v_0_0_0.AuxInt)
z := v_0_0_0.Args[0]
v.reset(OpPPC64SETBCR)
v.AuxInt = int32ToAuxInt(2)
v0 := b.NewValue0(v.Pos, OpSelect1, types.TypeFlags)
v1 := b.NewValue0(v.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v1.AuxInt = int64ToAuxInt(n)
v1.AddArg(z)
v0.AddArg(v1)
v.AddArg(v0)
v.AddArg(a)
return true
}
// match: (SETBCR [2] (CMPconst [0] a:(AND y z)))
@ -16129,16 +15950,13 @@ func rewriteBlockPPC64(b *Block) bool {
return true
}
// match: (If cond yes no)
// result: (NE (CMPWconst [0] (Select0 <typ.UInt32> (ANDCCconst [1] cond))) yes no)
// result: (NE (Select1 <types.TypeFlags> (ANDCCconst [1] cond)) yes no)
for {
cond := b.Controls[0]
v0 := b.NewValue0(cond.Pos, OpPPC64CMPWconst, types.TypeFlags)
v0.AuxInt = int32ToAuxInt(0)
v1 := b.NewValue0(cond.Pos, OpSelect0, typ.UInt32)
v2 := b.NewValue0(cond.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v2.AuxInt = int64ToAuxInt(1)
v2.AddArg(cond)
v1.AddArg(v2)
v0 := b.NewValue0(cond.Pos, OpSelect1, types.TypeFlags)
v1 := b.NewValue0(cond.Pos, OpPPC64ANDCCconst, types.NewTuple(typ.Int, types.TypeFlags))
v1.AuxInt = int64ToAuxInt(1)
v1.AddArg(cond)
v0.AddArg(v1)
b.resetWithControl(BlockPPC64NE, v0)
return true
@ -16461,233 +16279,163 @@ func rewriteBlockPPC64(b *Block) bool {
break
}
case BlockPPC64NE:
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (Equal cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (Equal cc))) yes no)
// result: (EQ cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64Equal {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64Equal {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64EQ, cc)
return true
}
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (NotEqual cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (NotEqual cc))) yes no)
// result: (NE cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64NotEqual {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64NotEqual {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64NE, cc)
return true
}
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (LessThan cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (LessThan cc))) yes no)
// result: (LT cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64LessThan {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64LessThan {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64LT, cc)
return true
}
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (LessEqual cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (LessEqual cc))) yes no)
// result: (LE cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64LessEqual {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64LessEqual {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64LE, cc)
return true
}
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (GreaterThan cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (GreaterThan cc))) yes no)
// result: (GT cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64GreaterThan {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64GreaterThan {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64GT, cc)
return true
}
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (GreaterEqual cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (GreaterEqual cc))) yes no)
// result: (GE cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64GreaterEqual {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64GreaterEqual {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64GE, cc)
return true
}
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (FLessThan cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (FLessThan cc))) yes no)
// result: (FLT cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64FLessThan {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64FLessThan {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64FLT, cc)
return true
}
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (FLessEqual cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (FLessEqual cc))) yes no)
// result: (FLE cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64FLessEqual {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64FLessEqual {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64FLE, cc)
return true
}
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (FGreaterThan cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (FGreaterThan cc))) yes no)
// result: (FGT cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64FGreaterThan {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64FGreaterThan {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64FGT, cc)
return true
}
// match: (NE (CMPWconst [0] (Select0 (ANDCCconst [1] (FGreaterEqual cc)))) yes no)
// match: (NE (Select1 (ANDCCconst [1] (FGreaterEqual cc))) yes no)
// result: (FGE cc yes no)
for b.Controls[0].Op == OpPPC64CMPWconst {
for b.Controls[0].Op == OpSelect1 {
v_0 := b.Controls[0]
if auxIntToInt32(v_0.AuxInt) != 0 {
break
}
v_0_0 := v_0.Args[0]
if v_0_0.Op != OpSelect0 {
if v_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0.AuxInt) != 1 {
break
}
v_0_0_0 := v_0_0.Args[0]
if v_0_0_0.Op != OpPPC64ANDCCconst || auxIntToInt64(v_0_0_0.AuxInt) != 1 {
if v_0_0_0.Op != OpPPC64FGreaterEqual {
break
}
v_0_0_0_0 := v_0_0_0.Args[0]
if v_0_0_0_0.Op != OpPPC64FGreaterEqual {
break
}
cc := v_0_0_0_0.Args[0]
cc := v_0_0_0.Args[0]
b.resetWithControl(BlockPPC64FGE, cc)
return true
}

4
test/codegen/arithmetic.go
View File

@ -320,14 +320,14 @@ func Pow2DivisibleSigned(n1, n2 int) (bool, bool) {
// amd64:"TESTQ\t[$]63",-"DIVQ",-"SHRQ"
// arm:"AND\t[$]63",-".*udiv",-"SRA"
// arm64:"TST\t[$]63",-"UDIV",-"ASR",-"AND"
// ppc64x:"RLDICL",-"SRAD"
// ppc64x:"ANDCC",-"RLDICL",-"SRAD",-"CMP"
a := n1%64 == 0 // signed divisible
// 386:"TESTL\t[$]63",-"DIVL",-"SHRL"
// amd64:"TESTQ\t[$]63",-"DIVQ",-"SHRQ"
// arm:"AND\t[$]63",-".*udiv",-"SRA"
// arm64:"TST\t[$]63",-"UDIV",-"ASR",-"AND"
// ppc64x:"RLDICL",-"SRAD"
// ppc64x:"ANDCC",-"RLDICL",-"SRAD",-"CMP"
b := n2%64 != 0 // signed indivisible
return a, b