http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48327
--- Comment #3 from Jeffrey A. Law <law at redhat dot com> 2011-03-29 15:59:11 UTC --- It's a problem with updating the SSA graph in a relatively uncommon case. We're failing to update a PHI argument correctly. I'm still thinking about how best to address the problem.
