[Bug target/87767] Missing AVX512 memory broadcast for constant vector

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87767

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuho...@gcc.gnu.org>:

https://gcc.gnu.org/g:433734126996b6fc4fc99b594421510f928a7bb9

commit r11-2991-g433734126996b6fc4fc99b594421510f928a7bb9
Author: liuhongt <hongtao....@intel.com>
Date:   Wed Jul 8 17:14:36 2020 +0800

    Optimize memory broadcast for constant vector under AVX512.

    For constant vector having one duplicated value, there's no need to put
    whole vector in the constant pool, using embedded broadcast instead.

    2020-07-09  Hongtao Liu  <hongtao....@intel.com>

    gcc/ChangeLog:

            PR target/87767
            * config/i386/i386-features.c
            (replace_constant_pool_with_broadcast): New function.
            (constant_pool_broadcast): Ditto.
            (class pass_constant_pool_broadcast): New pass.
            (make_pass_constant_pool_broadcast): Ditto.
            (remove_partial_avx_dependency): Call
            replace_constant_pool_with_broadcast under TARGET_AVX512F, it
            would save compile time when both pass rpad and cpb are
            available.
            (remove_partial_avx_dependency_gate): New function.
            (class pass_remove_partial_avx_dependency::gate): Call
            remove_partial_avx_dependency_gate.
            * config/i386/i386-passes.def: Insert new pass after combine.
            * config/i386/i386-protos.h
            (make_pass_constant_pool_broadcast): Declare.
            * config/i386/sse.md (*avx512dq_mul<mode>3<mask_name>_bcst):
            New define_insn.
            (*avx512f_mul<mode>3<mask_name>_bcst): Ditto.
            * config/i386/avx512fintrin.h (_mm512_set1_ps,
            _mm512_set1_pd,_mm512_set1_epi32, _mm512_set1_epi64): Adjusted.

    gcc/testsuite/ChangeLog:

            PR target/87767
            * gcc.target/i386/avx2-broadcast-pr87767-1.c: New test.
            * gcc.target/i386/avx512f-broadcast-pr87767-1.c: New test.
            * gcc.target/i386/avx512f-broadcast-pr87767-2.c: New test.
            * gcc.target/i386/avx512f-broadcast-pr87767-3.c: New test.
            * gcc.target/i386/avx512f-broadcast-pr87767-4.c: New test.
            * gcc.target/i386/avx512f-broadcast-pr87767-5.c: New test.
            * gcc.target/i386/avx512f-broadcast-pr87767-6.c: New test.
            * gcc.target/i386/avx512f-broadcast-pr87767-7.c: New test.
            * gcc.target/i386/avx512vl-broadcast-pr87767-1.c: New test.
            * gcc.target/i386/avx512vl-broadcast-pr87767-1.c: New test.
            * gcc.target/i386/avx512vl-broadcast-pr87767-2.c: New test.
            * gcc.target/i386/avx512vl-broadcast-pr87767-3.c: New test.
            * gcc.target/i386/avx512vl-broadcast-pr87767-4.c: New test.
            * gcc.target/i386/avx512vl-broadcast-pr87767-5.c: New test.
            * gcc.target/i386/avx512vl-broadcast-pr87767-6.c: New test.