http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639
--- Comment #8 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> 2012-04-24 23:58:06 UTC --- I confirm that rebuilding gcc-snapshot with the patch http://gcc.gnu.org/viewcvs?view=revision&revision=186272 for PR tree-optimization/52870 solves the problem. So, I think that this bug should be closed as a duplicate of bug 52870.
