https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78288
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 48869 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48869&action=edit alternate patch OK, I have another patch that reduces the overall number of visited blocks in stage3 gcc/*.o by about 10%. There are a few outliers that I need to understand (because it should never(?) cause more blocks to be iterated). Famous last words...