| commit | d7ac5d148039822159601ebbf3512431d81e204f | [log] [tgz] |
|---|---|---|
| author | Wayne Zuo <wdvxdr@golangcn.org> | Mon Feb 06 21:21:52 2023 +0800 |
| committer | Wayne Zuo <wdvxdr@golangcn.org> | Wed Feb 08 03:43:23 2023 +0000 |
| tree | ee1a0104884bb4fd611642f06b20ad4b066cbe28 | |
| parent | abd55d84832b1ca4129bfa0fbc13dba64d2164d2 [diff] |
cmd/compile: intrinsify math/bits/ReverseBytes{32|64} for 386
The BSWAPL instruction is supported in i486 and newer.
https://github.com/golang/go/wiki/MinimumRequirements#386 says we
support "All Pentium MMX or later". The Pentium is also referred to as
i586, so that we are safe with these instructions.
Change-Id: I6dea1f9d864a45bb07c8f8f35a81cfe16cca216c
Reviewed-on: https://go-review.googlesource.com/c/go/+/465515
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Keith Randall <khr@google.com>
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