https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93564
--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> --- > and I see a smaller slow down on different configurations: > https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=10.477.0 > https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=297.477.0 Thank you Vladimir looking into it. For these 2 regression, I still see it regressing (one even worse after the revision). Morever, there's one another lbm regression on Zen: https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=259.477.0&plot.1=29.477.0&; To be honest, we slightly analyzer lbm performance on Zen some time ago and we identified regression which depends on code layout (density of SSE instructions that probably can't fit in a u-op cache, or something similar).
