https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77633
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm512_shuffle_epi32&ig_expand=6414,6000 Specifically uses _MM_PERM_ENUM here too.