https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110303
--- Comment #4 from Denis Yaroshevskiy <denis.yaroshevskij at gmail dot com> --- > so _mm_shuffle_epi32 requires a constant but since it is an argument, the > argument, it is not a constant expression requirement. The function is marked constexpr. So it can be a constant if you ask it.
