https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84737
--- Comment #10 from Pat Haugen <pthaugen at gcc dot gnu.org> --- (In reply to Pat Haugen from comment #9) > (pr83497, which I'm still digging on). Ignoring output miscompare and just > timing the two versions built with -fno-tree-vectorize, I see that the > performance is similar. So possibly a powerpc vector cost issue. > And then again, maybe not. Running with -fno-tree-vectorize and removing -ffast-math (which eliminates the output miscompare), I still see the degradation.
