https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70725
--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Thu Apr 21 14:09:33 2016 New Revision: 235341 URL: https://gcc.gnu.org/viewcvs?rev=235341&root=gcc&view=rev Log: 2016-04-21 Richard Biener <rguent...@suse.de> PR tree-optimization/70725 * tree-if-conv.c (if_convertible_phi_p): Adjust guard for phi_convertible_by_degenerating_args. (predicate_all_scalar_phis): Handle single-argument PHIs. Modified: trunk/gcc/ChangeLog trunk/gcc/tree-if-conv.c