[Bug tree-optimization/46355] [4.5/4.6 Regression] ICE: SIGSEGV in create_preheader (cfgloopmanip.c:1336) with -O -fstrict-overflow -ftree-loop-distribution

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46355

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-09 
16:54:11 UTC ---
Author: rguenth
Date: Tue Nov  9 16:54:05 2010
New Revision: 166498

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166498
Log:
2010-11-09  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/46355
    * tree-loop-distribution.c (tree_loop_distribution): Do not
    distribute loops without a single exit.

    * gcc.dg/pr46355.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr46355.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-loop-distribution.c