c2 := cx128eq_ssa(a, b)
	c3 := cx128ne_ssa(a, a)
	c4 := cx128ne_ssa(a, b)

	expectCx128(t, "sum", sum, 4+8i)
	expectCx128(t, "diff", diff, 2+4i)
	expectCx128(t, "prod", prod, -9+12i)
	expectCx128(t, "quot", quot, 3+0i)
	expectCx128(t, "neg", neg, -1-2i)
	expect64(t, "real", r, 1)
	expect64(t, "imag", i, 2)
	expectCx128(t, "cnst", cnst, -4+7i)
	expectTrue(t, fmt.Sprintf("%v==%v", a, a), c1)