[Bug target/96246] [AVX512] unefficient code generatation for vpblendm*

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96246

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuhongt@gcc.gnu.org>:

https://gcc.gnu.org/g:7123217afb33d4a2860f552ad778a819cc8dea5e

commit r11-2683-g7123217afb33d4a2860f552ad778a819cc8dea5e
Author: liuhongt <hongtao.liu@intel.com>
Date:   Tue Jul 21 15:25:20 2020 +0800

    Merge two define_insn: <avx512>_blendm<mode>, <avx512>_load<mode>_mask.

    Those two define_insns have same pattern, and <avx512>_load<mode>_mask
    would always be matched since it show up earlier in the md file, and
    it may lose some opportunity in pass_reload since
    <avx512>_load<mode>_mask only have constraint "0C" for operand2, and
    "v" constraint in <avx512>_vblendm<mode> would never be matched.

    2020-07-21  Hongtao Liu  <hongtao.liu@intel.com>

    gcc/
            PR target/96246
            * config/i386/sse.md (<avx512>_load<mode>_mask,
            <avx512>_load<mode>_mask): Extend to generate blendm
            instructions.
            (<avx512>_blendm<mode>, <avx512>_blendm<mode>): Change
            define_insn to define_expand.

    gcc/testsuite/
            * gcc.target/i386/avx512bw-pr96246-1.c: New test.
            * gcc.target/i386/avx512bw-pr96246-2.c: New test.
            * gcc.target/i386/avx512vl-pr96246-1.c: New test.
            * gcc.target/i386/avx512vl-pr96246-2.c: New test.
            * gcc.target/i386/avx512bw-vmovdqu16-1.c: Adjust test.
            * gcc.target/i386/avx512bw-vmovdqu8-1.c: Ditto.
            * gcc.target/i386/avx512f-vmovapd-1.c: Ditto.
            * gcc.target/i386/avx512f-vmovaps-1.c: Ditto.
            * gcc.target/i386/avx512f-vmovdqa32-1.c: Ditto.
            * gcc.target/i386/avx512f-vmovdqa64-1.c: Ditto.
            * gcc.target/i386/avx512vl-pr92686-movcc-1.c: Ditto.
            * gcc.target/i386/avx512vl-pr96246-1.c: Ditto.
            * gcc.target/i386/avx512vl-pr96246-2.c: Ditto.
            * gcc.target/i386/avx512vl-vmovapd-1.c: Ditto.
            * gcc.target/i386/avx512vl-vmovaps-1.c: Ditto.
            * gcc.target/i386/avx512vl-vmovdqa32-1.c: Ditto.
            * gcc.target/i386/avx512vl-vmovdqa64-1.c: Ditto.