[PATCH] x86-64: Require BMI2 for __strlen_evex and __strnlen_evex
H.J. Lu
hjl.tools@gmail.com
Mon Apr 19 14:53:28 GMT 2021
On Mon, Apr 19, 2021 at 7:29 AM Florian Weimer <fweimer@redhat.com> wrote:
>
> * H. J. Lu via Libc-alpha:
>
> > I am committing this patch as an obvious fix.
>
> Can you add a reference to the commit that is fixed? Thanks.
Here is the commit message I am checking in:
---
Since __strlen_evex and __strnlen_evex added by
commit 1fd8c163a83d96ace1ff78fa6bac7aee084f6f77
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Mar 5 06:24:52 2021 -0800
x86-64: Add ifunc-avx2.h functions with 256-bit EVEX
use sarx:
c4 e2 6a f7 c0 sarx %edx,%eax,%eax
require BMI2 for __strlen_evex and __strnlen_evex in ifunc-impl-list.c.
ifunc-avx2.h already requires BMI2 for EVEX implementation.
---
Thanks.
--
H.J.
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