[Bug tree-optimization/92834] misssed SLP vectorization in LightPixel

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92834

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Dec  9 10:13:18 2019
New Revision: 279113

URL: https://gcc.gnu.org/viewcvs?rev=279113&root=gcc&view=rev
Log:
        PR tree-optimization/92834
        * match.pd (A - ((A - B) & -(C cmp D)) -> (C cmp D) ? B : A,
        A + ((B - A) & -(C cmp D)) -> (C cmp D) ? B : A): New simplifications.

        * gcc.dg/tree-ssa/pr92834.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr92834.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog