[Bug lto/83201] [7/8 Regression] SPEC CPU2017 505.mcf_f produces incorrect output when built with -flto and FDO

[pthaugen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83201

--- Comment #5 from Pat Haugen <pthaugen at gcc dot gnu.org> ---
Current FSF 6 branch works fine, so I have some bisect points. Will comment
further as I find out.