https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112548
--- Comment #8 from Filip Kastl <pheeck at gcc dot gnu.org> --- (In reply to Robin Dapp from comment #7) > I built executables with and without the commit (-Ofast -march=znver4 > -flto). There is no difference so it must really be something that happens > with PGO. > I'd really need access to a zen4 box or the pgo executables at least. I'd like to help but I'm afraid I cannot send you the SPEC binaries with PGO applied since SPEC is licensed nor can I give you access to a Zen4 computer. I suppose someone else will have to analyze this bug.