https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90273
--- Comment #28 from Jan Hubicka <hubicka at ucw dot cz> --- > The recent regression is we no longer throw them away plentiful during CFG > cleanup and now they pile up during inlining. > > I agree full DCE with liveness will be expensive for usually little gain. Not > sure if vector resets will improve things much. One thing to keep in mind that after early opts and in late opts after the initial cleanups post ipa-inline-transforms we likely have a lot of new debug statements brought in by inliner. It would make sense to do something more expensive twice in queue to get rid of them. Especially in early opts we do not want to make too many useless debug statements to hit the LTO stream or get duplicated by subsequent inlining. Honza
