[Bug target/112915] [14 Regression] 4% exec time regression of 454.calculix on AMD Zen2

[fkastl at suse dot cz via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112915

--- Comment #2 from Filip Kastl <fkastl at suse dot cz> ---
The options are -Ofast -march=native -mtune=native LTO and PGO