[PATCH] x86: Eliminate unnecessary {evex} prefixes (was: x86: Add %ME for instructions do not need {evex} prefix with memory)

Jan Beulich jbeulich@suse.com
Tue Dec 3 09:34:16 GMT 2024


On 03.12.2024 10:17, Haochen Jiang wrote:
> From: "H.J. Lu" <hjl.tools@gmail.com>
> 
> Hi all,
> 
> I renamed the patch from previous patch name
> "x86: Add %ME for instructions do not need {evex} prefix with memory".
> Changes and patch descrption are embedded below.
> 
> Tested on x86_64-pc-linux-gnu. Ok for trunk?
> 
> Thx,
> Haochen
> 
> ---
> 
> Changes in v3:
> 
>   - Further split table for vpsra{d,q} to fully eliminate {evex} prefix
>     for vpsraq. Also add testcases for vpsraq.

Okay; that was really quick turnaround.

Jan


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