[Bug target/120957] [16 Regression] 6-9% slowdown of 503.bwaves_r on Zen{2,3} since r16-1647-gc06979ff957485

[pheeck at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120957

--- Comment #1 from Filip Kastl <pheeck at gcc dot gnu.org> ---
The slowdown is also present on 410.bwaves from 2006 SPEC
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=467.40.0
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=301.40.0
again, both on Zen2 and Zen3