[PATCH] [AVX512]For vector compare to mask register, UNSPEC is needed instead of comparison operator [PR96243]

[Hongtao Liu]

ping^1

On Tue, Aug 11, 2020 at 5:43 PM Hongtao Liu <crazylht@gmail.com> wrote:
>
> Hi:
>   The issue is described in the bugzilla.
>   Bootstrap is ok, regression test for i386/x86-64 backend is ok.
>  Ok for trunk?
>
> ChangeLog
> gcc/
>         PR target/96551
>         * config/i386/sse.md (vec_unpacku_float_hi_v16si): For vector
>         compare to integer mask, don't use gen_rtx_LT , use
>         ix86_expand_mask_vec_cmp instead.
>         (vec_unpacku_float_hi_v16si): Ditto.
>
> gcc/testsuite
>         * gcc.target/i386/pr96551-1.c: New test.
>         * gcc.target/i386/pr96551-2.c: New test.
>
> --
> BR,
> Hongtao



-- 
BR,
Hongtao