https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68083
Alexandre Oliva <aoliva at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |aoliva at gcc dot gnu.org --- Comment #6 from Alexandre Oliva <aoliva at gcc dot gnu.org> --- Created attachment 36622 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36622&action=edit Patch I'm testing to fix the problem This patch stops ifcombine from introducing this kind of undefined behavior. I'm testing it now, and I'll post it to the list if that completes successfully.