https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88713
--- Comment #49 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- (In reply to Uroš Bizjak from comment #48) > (In reply to rguent...@suse.de from comment #47) > > >But why don't we generate sqrtps for vector sqrtf? > > > > That's the default for - mrecip back in time we benchmarked it and scalar > > recip miscompares sth. > > It was polyhedron benchmark, in one benchmark, the index was calculated from > square root, and that was too sensitive for 2 ULP difference. Argh. Sacrificing performance for the sake of bugware...
