https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81467
Bug ID: 81467 Summary: AVX-512 support for inline assembly Product: gcc Version: 6.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: alekshs at hotmail dot com Target Milestone: --- I'm trying some avx-512 code with the inline assembly. 1) Clobbering xmm16-31 and k-type registers won't work. I guess it won't work in ymm16-31 or zmm16-31 either: error: unknown register name ‘%xmm16’ in ‘asm’ error: unknown register name ‘%k1’ in ‘asm’ 2) I'm having a problem trying to issue a "VMOVDQU32 0(%0), %%ZMM0 {k1}{z}\n" I also tried it with "VMOVDQU32 0(%0), %%ZMM0 {%k1}{z}\n" and "VMOVDQU32 0(%0), %%ZMM0 {%%k1}{z}\n" and I also added % and %% in front of the z flag to see if it'll work. It's possible I'm doing something wrong in the syntax although I tried several permutations. Googling for examples didn't get me any meaningful results.