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| author | limeidan <limeidan@loongson.cn> | 2025-09-19 11:18:13 +0800 |
|---|---|---|
| committer | abner chenc <chenguoqi@loongson.cn> | 2025-09-27 05:02:58 -0700 |
| commit | af6999e60d498887fceaeca89f4aa88ff35c91df (patch) | |
| tree | f3a76706b883a23539817c53cbc4dab709318705 /test/codegen | |
| parent | 63cd9120836fe935bf39dc9b3a19ad44eab7f063 (diff) | |
| download | go-af6999e60d498887fceaeca89f4aa88ff35c91df.tar.xz | |
cmd/compile: implement jump table on loong64
Following CL 357330, use jump tables on Loong64.
goos: linux
goarch: loong64
pkg: cmd/compile/internal/test
cpu: Loongson-3A6000-HV @ 2500.00MHz
│ old │ new │
│ sec/op │ sec/op vs base │
Switch8Predictable 2.352n ± 0% 2.101n ± 0% -10.65% (p=0.000 n=10)
Switch8Unpredictable 11.99n ± 0% 10.25n ± 0% -14.51% (p=0.000 n=10)
Switch32Predictable 3.153n ± 0% 1.887n ± 1% -40.14% (p=0.000 n=10)
Switch32Unpredictable 12.47n ± 0% 10.22n ± 0% -18.00% (p=0.000 n=10)
SwitchStringPredictable 3.162n ± 0% 3.352n ± 0% +6.01% (p=0.000 n=10)
SwitchStringUnpredictable 14.70n ± 0% 13.31n ± 0% -9.46% (p=0.000 n=10)
SwitchTypePredictable 3.702n ± 0% 2.201n ± 0% -40.55% (p=0.000 n=10)
SwitchTypeUnpredictable 16.18n ± 0% 14.48n ± 0% -10.51% (p=0.000 n=10)
SwitchInterfaceTypePredictable 7.654n ± 0% 9.680n ± 0% +26.47% (p=0.000 n=10)
SwitchInterfaceTypeUnpredictable 22.04n ± 0% 22.44n ± 0% +1.81% (p=0.000 n=10)
geomean 7.441n 6.469n -13.07%
Change-Id: Id6f30fa73349c60fac17670084daee56973a955f
Reviewed-on: https://go-review.googlesource.com/c/go/+/705396
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Diffstat (limited to 'test/codegen')
| -rw-r--r-- | test/codegen/switch.go | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/test/codegen/switch.go b/test/codegen/switch.go index 509343110a..1a66a5ddf8 100644 --- a/test/codegen/switch.go +++ b/test/codegen/switch.go @@ -25,6 +25,7 @@ func f(x string) int { func square(x int) int { // amd64:`JMP\s\(.*\)\(.*\)$` // arm64:`MOVD\s\(R.*\)\(R.*<<3\)`,`JMP\s\(R.*\)$` + // loong64: `ALSLV`,`MOVV`,`JMP` switch x { case 1: return 1 @@ -51,6 +52,7 @@ func square(x int) int { func length(x string) int { // amd64:`JMP\s\(.*\)\(.*\)$` // arm64:`MOVD\s\(R.*\)\(R.*<<3\)`,`JMP\s\(R.*\)$` + // loong64:`ALSLV`,`MOVV`,`JMP` switch x { case "a": return 1 |