[Bug target/102473] [12 Regression] 521.wrf_r 5% slower at -Ofast and generic x86_64 tuning after r12-3426-g8f323c712ea76c

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102473

--- Comment #7 from Hongtao.liu <crazylht at gmail dot com> ---
> retired and clocksticks after my commit. And the regression comes from
> libc-2.31.so which shoud be the same.

difference in libc-2.31.so comes from frond-end bandwidth MITE, very low DSB
coverage.