https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111062
--- Comment #1 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Zdenek Sojka from comment #0)
> Created attachment 55755 [details]
> reduced testcase
>
> Compiler output:
> $ x86_64-pc-linux-gnu-gcc -O -mavx10.1-256 -mavx512bw -mno-avx512f testcase.c
> cc1: warning:
> '-mno-avx512{f,vl,bw,dq,cd,bf16,fp16,vbmi,vbmi2,vnni,ifma,bitalg,vpopcntdq}'
> are ignored with '-mavx10.1' and above
Warning message can be a little confusing.
A better formulation might be: with avx10.1 enabled, -mno-avx512f does not
fully disable AVX512-related instructions.
