[Bug tree-optimization/91201] [7/8/9/10 Regression] SIMD not generated for horizontal sum of bytes in array

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91201

--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Jul 31 09:22:48 2019
New Revision: 273927

URL: https://gcc.gnu.org/viewcvs?rev=273927&root=gcc&view=rev
Log:
        PR tree-optimization/91201
        * config/i386/sse.md (reduc_plus_scal_v16qi): New expander.
        (REDUC_PLUS_MODE): Add V32QImode for TARGET_AVX and V64QImode for
        TARGET_AVX512F.
        (reduc_plus_scal_<mode>): Improve formatting by introducing
        a temporary.

        * gcc.target/i386/sse2-pr91201.c: New test.
        * gcc.target/i386/avx2-pr91201.c: New test.
        * gcc.target/i386/avx512bw-pr91201.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/avx2-pr91201.c
    trunk/gcc/testsuite/gcc.target/i386/avx512bw-pr91201.c
    trunk/gcc/testsuite/gcc.target/i386/sse2-pr91201.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/sse.md
    trunk/gcc/testsuite/ChangeLog