Re: [PATCH] rs6000: Add Power10 optimization for most _mm_movemask*

[David Edelsohn via Gcc-patches]

> Power10 ISA added `vextract*` instructions which are realized in the
> `vec_extractm` instrinsic.
>
> Use `vec_extractm` for `_mm_movemask_ps`, `_mm_movemask_pd`, and
> `_mm_movemask_epi8` compatibility intrinsics, when `_ARCH_PWR10`.
>
> 2021-10-21  Paul A. Clarke  <p...@us.ibm.com>
>
> gcc
> * config/rs6000/xmmintrin.h (_mm_movemask_ps): Use vec_extractm
> when _ARCH_PWR10.
> * config/rs6000/emmintrin.h (_mm_movemask_pd): Likewise.
> (_mm_movemask_epi8): Likewise.
> ---
> Tested on Power10 powerpc64le-linux (compiled with and without
> `-mcpu=power10`).
>
> OK for trunk?

This is okay modulo

> + return vec_extractm ((__v16qu) __A);

Should the above be __v16qi like x86?

Thanks, David