https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119599
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Empty block with no successors is how we represent __builtin_unreachable in RTL, in GIMPLE there should be __builtin_unreachable call. We should just make sure to add that if we inline noreturn function which can fall through.
