https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78379
--- Comment #21 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> --- (In reply to Thomas Koenig from comment #19) > Created attachment 40120 [details] > Updated patch > > Well, here's an update also for AVX512F. > > I can confirm the patch gives the same performance as the AVX > version on a machine that supports AVX. Untested on AVX512, because > I don't have a machine for that. > > Adding AVX2 would be fairly trivial. > > I'm not sure that yanking out the info into the new cpuinfo.h header > file is the way to go, but I am not sure of a better way to do it. > > Other comments? I wonder if there is one in the gcc compile farm. Is the AVX512 a Knights Landing feature? Which machines have it. (time to google)
