[Bug target/77526] [7 Regression] ICE: in verify_dominators, at dominance.c:1039 with -mstringop-strategy=byte_loop

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77526

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Sep 16 07:10:08 2016
New Revision: 240174

URL: https://gcc.gnu.org/viewcvs?rev=240174&root=gcc&view=rev
Log:
        PR target/77526
        * combine.c (rest_of_handle_combine): If any edges have been purged,
        free dominators if available.

        * gcc.target/i386/pr77526.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr77526.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog