https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69652
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Well, MASK_STORE you don't want to handle in that loop, that is a store. MASK_LOAD is an exception, so IMHO you should just check for is_gimple_assign || MASK_LOAD. Allowing move of arbitrary other stmts looks dangerous. Another question is what to do with gimple_clobber_p. Those should have a vdef, so we handle them likely conservatively, which might be good enough for now. Or does vectorization just remove them already?
