[Bug target/94406] 503.bwaves_r is 11% slower on Zen2 CPUs than GCC 9 with -Ofast -march=native

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94406

--- Comment #2 from Martin Jambor <jamborm at gcc dot gnu.org> ---
And for completeness, LNT sees this too and has just managed to catch the
regression:

https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=276.427.0&plot.1=295.427.0&