https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120799
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #2) > Yes, the official docs do have double * pointer in there: > https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index. > html#text=_mm_storel&ig_expand=6503 > so I think this bug is clearly invalid. At times there was probably no standard conformant way to indicate a pointer to a misaligned double is OK, so it might be an oversight as well. Note in the header itself there's already __x86_double_u, so as a QOI measure the intrinsic could be changed.