Re: [PATCH] [X86]: Fix zen6 AVX512BMM cpuid check.

[Uros Bizjak]

On Fri, Aug 21, 2026 at 12:08 PM Dipesh Sharma <dipesh.sha...@amd.com> wrote:
>
>
> Hi,
>
> Addressed comments from H.J. Lu.
>
> - Moved bit_AVX512BMM to extended features section.
> - Added test for __builtin_cpu_supports ("avx512bmm") compile and runtime 
> tests.
>
> gcc/ChangeLog:
>
>         * common/config/i386/cpuinfo.h (get_available_features): Detect 
> AVX512BMM from extended features instead of standard leaf.
>         * config/i386/cpuid.h (bit_AVX512BMM): Move to extended features
>           section.
>
> gcc/testsuite/ChangeLog:
>
>         * gcc.target/i386/avx512bmm-check-1.c: New test.
>         * gcc.target/i386/avx512bmm-check-2.c: New test.
>         * gcc.target/i386/avx512bmm-check-3.c: New test.

> @@ -1205,6 +1195,8 @@ get_available_features (struct __processor_model 
> *cpu_model,
>         {
>           set_feature (FEATURE_PREFETCHI);
>         }
> +      if (eax & bit_AVX512BMM)
> +       set_feature (FEATURE_AVX512BMM);
>      }

While there, please also remove curly braces from FEATURE_PREFETCHI.

OK.

Thanks,
Uros.