tree c1954c75174b257abf202a986f10faed96cacbe1
parent 2b31abc5286e4f29f934c4123101feabf0f4aaca
author Wayne Zuo <wdvxdr@golangcn.org> 1649407453 +0800
committer Gopher Robot <gobot@golang.org> 1649768367 +0000

cmd/compile: add SARX instruction for GOAMD64>=3

name                    old time/op  new time/op  delta
ShiftArithmeticRight-8  0.68ns ± 5%  0.30ns ± 6%  -56.14%  (p=0.000 n=10+10)

Change-Id: I052a0d7b9e6526d526276444e588b0cc288beff4
Reviewed-on: https://go-review.googlesource.com/c/go/+/399055
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>