extern void abort (void); uint8x8_t test_vrev16u8 (uint8x8_t _arg) { return vrev16_u8 (_arg); } int main (int argc, char **argv) { int i; uint8x8_t inorder = {1, 2, 3, 4, 5, 6, 7, 8}; uint8x8_t reversed = test_vrev16u8 (inorder); uint8x8_t expected = {2, 1, 4, 3, 6, 5, 8, 7}; for (i = 0; i < 8; i++) if (reversed[i] != expected[i]) abort (); return 0; }