[Bug middle-end/68542] [6 Regression] 10% 481.wrf performance regression

[ienkovich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68542

--- Comment #8 from Ilya Enkovich <ienkovich at gcc dot gnu.org> ---
Author: ienkovich
Date: Tue Feb  2 09:46:26 2016
New Revision: 233068

URL: https://gcc.gnu.org/viewcvs?rev=233068&root=gcc&view=rev
Log:
gcc/

2016-02-02  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR middle-end/68542
        * config/i386/i386.c (ix86_expand_branch): Add support for conditional
        branch with vector comparison.
        * config/i386/sse.md (VI48_AVX): New mode iterator.
        (define_expand "cbranch<mode>4): Add support for conditional branch
        with vector comparison.
        * tree-vect-loop.c (optimize_mask_stores): New function.
        * tree-vect-stmts.c (vectorizable_mask_load_store): Initialize
        has_mask_store field of vect_info.
        * tree-vectorizer.c (vectorize_loops): Invoke optimaze_mask_stores for
        vectorized loops having masked stores after vec_info destroy.
        * tree-vectorizer.h (loop_vec_info): Add new has_mask_store field and
        correspondent macros.
        (optimize_mask_stores): Add prototype.

gcc/testsuite

2016-02-02  Yuri Rumyantsev  <ysrumyan@gmail.com>

        PR middle-end/68542
        * gcc.dg/vect/vect-mask-store-move-1.c: New test.
        * gcc.target/i386/avx2-vect-mask-store-move1.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/vect-mask-store-move-1.c
    trunk/gcc/testsuite/gcc.target/i386/avx2-vect-mask-store-move1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/sse.md
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c
    trunk/gcc/tree-vect-stmts.c
    trunk/gcc/tree-vectorizer.c
    trunk/gcc/tree-vectorizer.h