#ifndef __VSX__ #error "VSX is not supported" #endif #include <altivec.h> typedef __vector unsigned int v_uint32x4; int main(void) { v_uint32x4 z4 = (v_uint32x4){0, 0, 0, 0}; z4 = vec_absd(z4, z4); return (int)vec_extract(z4, 0); }