https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66726
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Comment on attachment 35888 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35888 untested prototype patch I thought pre does this already and that seems like a better place than phi-opt. Oh wait pre does the opposite and really you should handle more than two arguments to phis.
