https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44563
--- Comment #22 from Richard Biener <rguenth at gcc dot gnu.org> --- I wonder why we have split_bb_on_noreturn_calls in cfg-cleanup rather than in fixup_cfg. It's quite expensive, walking all stmts and calling gimple_call_noreturn_p which is very expensive. We fixup noreturn calls in fixup cfg so I wonder why we have this leftover in cfgcleanup... testing removal.
