https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63594
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Kirill, any progress on: "And, for AVX512-{F,BW,VL}, I'm surprised that the broadcasts from gprs are done as different instructions from broadcasts from memory or vector reg, I would have thought that must have been done using a single insn with alternatives." ?