[Bug tree-optimization/88676] missed opportunity in integer conditional

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88676

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Jan  7 08:51:59 2019
New Revision: 267634

URL: https://gcc.gnu.org/viewcvs?rev=267634&root=gcc&view=rev
Log:
        PR tree-optimization/88676
        * tree-ssa-phiopt.c (two_value_replacement): New function.
        (tree_ssa_phiopt_worker): Call it.

        * gcc.dg/tree-ssa/pr88676.c: New test.
        * gcc.dg/pr88676.c: New test.
        * gcc.dg/tree-ssa/pr15826.c: Just verify there is no goto,
        allow &.

Added:
    trunk/gcc/testsuite/gcc.dg/pr88676.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr88676.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr15826.c
    trunk/gcc/tree-ssa-phiopt.c