https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66144
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Version|tree-ssa |4.9.0 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- I suspect a == b is all equals and not element by element equals.