test(t, 21)
	test(t, 22)
	test(t, 23)
	test(t, 31)
	test(t, 32)
}

func test(t *testing.T, which int64) {
	output += fmt.Sprintln("test", which)
	v1 := V{w: 30, x: 3, p: nil}
	v2, v3 := v1.autos_ssa(which, 10, 1, 20, 2)
	if which != v2.val() {
		output += fmt.Sprintln("Expected which=", which, "got v2.val()=", v2.val())
		mypanic(t, "Failure of expected V value")
	}
	if v2.p.val() != v3.val() {