https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61346
--- Comment #3 from Ian Lance Taylor <ian at airs dot com> ---
Reverting this patch to tree-vrp.c fixes the problem:
2014-05-27 Richard Biener <rguent...@suse.de>
* tree-vrp.c (vrp_evaluate_conditional_warnv_with_ops_using_ranges):
Try using literal operands when comparing value-ranges failed.
