mirror of
https://github.com/golang/go
synced 2024-11-13 12:30:21 -07:00
cmd/compile/internal/ssa: optimize if control flow rule of loong64
goos: linux goarch: loong64 pkg: cmd/compile/internal/test cpu: Loongson-3A6000 @ 2500.00MHz │ old │ new │ │ sec/op │ sec/op vs base │ Switch8Predictable 2.908n ± 0% 2.702n ± 2% -7.10% (p=0.000 n=10) Switch8Unpredictable 13.29n ± 0% 12.45n ± 0% -6.32% (p=0.000 n=10) Switch32Predictable 3.069n ± 0% 3.137n ± 0% +2.23% (p=0.000 n=10) Switch32Unpredictable 15.11n ± 0% 13.21n ± 0% -12.57% (p=0.000 n=10) SwitchStringPredictable 5.165n ± 0% 4.447n ± 0% -13.90% (p=0.000 n=10) SwitchStringUnpredictable 18.26n ± 0% 16.86n ± 0% -7.67% (p=0.000 n=10) SwitchTypePredictable 3.961n ± 0% 3.405n ± 0% -14.04% (p=0.000 n=10) SwitchTypeUnpredictable 17.92n ± 0% 16.17n ± 0% -9.77% (p=0.000 n=10) SwitchInterfaceTypePredictable 8.463n ± 0% 8.492n ± 0% +0.34% (p=0.001 n=10) SwitchInterfaceTypeUnpredictable 23.70n ± 0% 22.48n ± 0% -5.15% (p=0.000 n=10) geomean 8.672n 8.018n -7.54% Change-Id: Iefbf8e9e784905779f1ebc9fd6a9b7a28cf2f6f4 Reviewed-on: https://go-review.googlesource.com/c/go/+/620815 Reviewed-by: abner chenc <chenguoqi@loongson.cn> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This commit is contained in:
parent
4bfc81a727
commit
38f8596787
@ -453,6 +453,7 @@
|
||||
(GetCallerPC ...) => (LoweredGetCallerPC ...)
|
||||
|
||||
(If cond yes no) => (NE (MOVBUreg <typ.UInt64> cond) yes no)
|
||||
(MOVBUreg x:(XOR (MOVVconst [1]) ((SGT|SGTU) _ _))) => x
|
||||
|
||||
// Write barrier.
|
||||
(WB ...) => (LoweredWB ...)
|
||||
|
@ -1907,6 +1907,44 @@ func rewriteValueLOONG64_OpLOONG64MOVBUreg(v *Value) bool {
|
||||
v.AddArg(x)
|
||||
return true
|
||||
}
|
||||
// match: (MOVBUreg x:(XOR (MOVVconst [1]) (SGT _ _)))
|
||||
// result: x
|
||||
for {
|
||||
x := v_0
|
||||
if x.Op != OpLOONG64XOR {
|
||||
break
|
||||
}
|
||||
_ = x.Args[1]
|
||||
x_0 := x.Args[0]
|
||||
x_1 := x.Args[1]
|
||||
for _i0 := 0; _i0 <= 1; _i0, x_0, x_1 = _i0+1, x_1, x_0 {
|
||||
if x_0.Op != OpLOONG64MOVVconst || auxIntToInt64(x_0.AuxInt) != 1 || x_1.Op != OpLOONG64SGT {
|
||||
continue
|
||||
}
|
||||
v.copyOf(x)
|
||||
return true
|
||||
}
|
||||
break
|
||||
}
|
||||
// match: (MOVBUreg x:(XOR (MOVVconst [1]) (SGTU _ _)))
|
||||
// result: x
|
||||
for {
|
||||
x := v_0
|
||||
if x.Op != OpLOONG64XOR {
|
||||
break
|
||||
}
|
||||
_ = x.Args[1]
|
||||
x_0 := x.Args[0]
|
||||
x_1 := x.Args[1]
|
||||
for _i0 := 0; _i0 <= 1; _i0, x_0, x_1 = _i0+1, x_1, x_0 {
|
||||
if x_0.Op != OpLOONG64MOVVconst || auxIntToInt64(x_0.AuxInt) != 1 || x_1.Op != OpLOONG64SGTU {
|
||||
continue
|
||||
}
|
||||
v.copyOf(x)
|
||||
return true
|
||||
}
|
||||
break
|
||||
}
|
||||
// match: (MOVBUreg x:(SGT _ _))
|
||||
// result: x
|
||||
for {
|
||||
|
Loading…
Reference in New Issue
Block a user