[Bug tree-optimization/80901] [8 Regression] ICE on valid code at -Os and above on x86_64-linux-gnu: in verify_loop_structure, at cfgloop.c:1644

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80901

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue May 30 11:08:36 2017
New Revision: 248681

URL: https://gcc.gnu.org/viewcvs?rev=248681&root=gcc&view=rev
Log:
2017-05-30  Richard Biener  <rguenther@suse.de>

        PR middle-end/80901
        * cfgexpand.c (expand_gimple_cond): Match up loop fixup with
        split_edge code.

        * gcc.dg/torture/pr80901.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr80901.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgexpand.c
    trunk/gcc/testsuite/ChangeLog