http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56298 --- Comment #6 from Piotr Wyderski <piotr.wyderski at gmail dot com> 2013-02-12 13:55:08 UTC --- #include <wmmintrin.h> __m128i f(__m128i x, __m128i y) { return _mm_aesenc_si128(x, y); }