http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56321
William J. Schmidt <wschmidt at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED AssignedTo|unassigned at gcc dot |wschmidt at gcc dot gnu.org |gnu.org | --- Comment #7 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2013-02-14 22:27:21 UTC --- I see. The problem is a memory VUSE on the return statement that no longer has a def. The VDEF was associated with the __builtin_pow statement that was expanded. Looks like I need to release the SSA name. Working on a fix.