[Bug lto/82229] GCC7's LTO underperforms compared to GCC6

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82229

--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Moreover, if there's an automatic way how one can get FPS without GUI
interaction, I can bisect revision that's responsible for that.