[Bug target/84490] [8/9/10/11 regression] 436.cactusADM regressed by 6-8% percent with -Ofast on Zen and Haswell, compared to gcc 7.2

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84490

--- Comment #15 from Martin Jambor <jamborm at gcc dot gnu.org> ---
The problem sometimes is still there, sometimes it isn't:

https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=37.100.0&plot.1=27.100.0&;

I wonder whether we should keep this bug opened, the benchmark seems too
erratic.