[Bug tree-optimization/64284] [5 Regression] ICE: Segmentation fault

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64284

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Dec 15 08:19:55 2014
New Revision: 218733

URL: https://gcc.gnu.org/viewcvs?rev=218733&root=gcc&view=rev
Log:
2014-12-15  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/64284
    * tree-ssa-threadupdate.c (duplicate_seme_region): Mark
    the loop for removal if we copied the loop header.

    * gcc.dg/torture/pr64284.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr64284.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-threadupdate.c