// based on // http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20140303/207014.html #include #ifdef __GNUC__ typedef int v4si __attribute__ ((vector_size (16))); #endif int main() { #ifdef __GNUC__ v4si a = { 0, 1, 2, 3 }, b; b[0] = 0; b[1] = 1; b[2] = 2; b[3] = 3; for (int i = 0; i < 4; ++i) { /* printf("i = %d: a[i] = %d, b[i] = %d, cast(a)[i] = %d, cast(b)[i] = %d\n", a[i], b[i], ((int*) &a)[i], ((int*) &b)[i]); */ int a_i=a[i]; int b_i=b[i]; assert(a[i]==b[i]); assert(a[i]==((int*) &a)[i]); assert(((int*) &a)[i]==((int*) &b)[i]); assert(((int*) &b)[i]==b[i]); } #endif return 0; }