https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90492
--- Comment #3 from g.peterh...@t-online.de --- Am 15.05.19 um 21:20 schrieb glisse at gcc dot gnu.org: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90492 > > --- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> --- >> copy's use only sse-registers and never higher > > What do you mean by that? Do you want AVX? Then you should let the compiler > know that they are available (for instance -march=native). > Yes, i'm use -march=native on Ryzen 7 2700 (has avx/avx2) or you compile with -march=skylake-avx512, but copy-operations use only sse-registers in all cases.
