static int test_shift(void)
{
	int ret = 0;

	ret |= (vec_urshift(0xFFFFFFFF, 16) != 0xFFFF);
	ret |= (vec_ulshift(0xFFFF, 16) != 0xFFFF0000);
	ret |= (vec_rshift(-0xFFFF, 8) != -0x100);
	ret |= (vec_lshift(-0xFFFF, 8) != -0xFFFF00);

	return ret;
}