https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97840
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> --- I agree we should just rename default_is_empty_type to is_empty_type, export it, declare in tree.h and use it instead that complicated test. TYPE_EMPTY_P isn't something tree-ssa-uninit.c should care about, that is just whether the backend decided it will not be passed at all.
