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| author | Lynn Boger <laboger@linux.vnet.ibm.com> | 2020-09-23 11:06:39 -0400 |
|---|---|---|
| committer | Lynn Boger <laboger@linux.vnet.ibm.com> | 2020-09-28 18:13:48 +0000 |
| commit | a424f6e45e29960c933a7ccc1cd8fc9bb2766f15 (patch) | |
| tree | ae2e0f78c969a9c6b4fc62b33a7a27974d590943 /src/cmd/asm | |
| parent | 874b3132a84cf76da6a48978826c04c380a37a50 (diff) | |
| download | go-a424f6e45e29960c933a7ccc1cd8fc9bb2766f15.tar.xz | |
cmd/asm,cmd/compile,cmd/internal/obj/ppc64: add extswsli support on power9
This adds support for the extswsli instruction which combines
extsw followed by a shift.
New benchmark demonstrates the improvement:
name old time/op new time/op delta
ExtShift 1.34µs ± 0% 1.30µs ± 0% -3.15% (p=0.057 n=4+3)
Change-Id: I21b410676fdf15d20e0cbbaa75d7c6dcd3bbb7b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/257017
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Carlos Eduardo Seo <carlos.seo@gmail.com>
Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
Diffstat (limited to 'src/cmd/asm')
| -rw-r--r-- | src/cmd/asm/internal/asm/testdata/ppc64enc.s | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/cmd/asm/internal/asm/testdata/ppc64enc.s b/src/cmd/asm/internal/asm/testdata/ppc64enc.s index e26f6f8933..88a7609ba8 100644 --- a/src/cmd/asm/internal/asm/testdata/ppc64enc.s +++ b/src/cmd/asm/internal/asm/testdata/ppc64enc.s @@ -266,6 +266,7 @@ TEXT asmtest(SB),DUPOK|NOSPLIT,$0 SRDCC R3, R4 // 7c841c37 ROTLW $16, R3, R4 // 5464803e ROTLW R3, R4, R5 // 5c85183e + EXTSWSLI $3, R4, R5 // 7c851ef4 RLWMI $7, R3, $65535, R6 // 50663c3e RLWMICC $7, R3, $65535, R6 // 50663c3f RLWNM $3, R4, $7, R6 // 54861f7e |