[Bug tree-optimization/53979] ((a ^ b) | a) not optimized to (a | b)

[prathamesh3492 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53979

--- Comment #2 from prathamesh3492 at gcc dot gnu.org ---
Author: prathamesh3492
Date: Thu Oct 20 07:55:28 2016
New Revision: 241360

URL: https://gcc.gnu.org/viewcvs?rev=241360&root=gcc&view=rev
Log:
2016-10-20  Prathamesh Kulkarni  <prathamesh.kulka...@linaro.org>

        PR tree-optimization/53979
        * match.pd ((a ^ b) | a -> a | b): New pattern.

testsuite/
        * gcc.dg/pr53979-1.c: New test-case.
        * gcc.dg/pr53979-2.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/pr53979-1.c
    trunk/gcc/testsuite/gcc.dg/pr53979-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog