https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111796
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Richard Biener from comment #5) > On aarch64 I see > > t.c:5:1: warning: GCC does not currently support mixed size types for 'simd' > functions > 5 | foo (int a, short b) > | ^~~ > > simdlen(8) is also not supported, but simdlen(4) isn't diagnosed. The above > still remains though. That is due to PR 96341 .