https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117270
--- Comment #6 from Filip Kastl <pheeck at gcc dot gnu.org> --- Are you sure this is fixed? On our machine the slowdown didn't go away. See the graph https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=585.507.0. Maybe the weird codegen wasn't the cause of the slowdown?