[Bug target/112548] [14 regression] 5% exec time regression in 429.mcf on AMD zen4 CPU (since r14-5076-g01c18f58d37865)

[rdapp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112548

--- Comment #7 from Robin Dapp <rdapp at gcc dot gnu.org> ---
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.