https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66801
--- Comment #10 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- (In reply to Richard Biener from comment #9) > Ah, you used release checking... damn. Also note the various FLAGS that I use in comment0. Both PGO and LTO are needed. PGO alone is fine, LTO alone is fine and bootstrap-O3 alone is also fine.
