runtime.GC()
	runtime.GC()

	// fing will only pick the new IntRegArgs up if it's currently
	// sleeping and wakes up, so wait for it to go to sleep.
	success := false
	for i := 0; i < 100; i++ {
		if runtime.FinalizerGAsleep() {
			success = true
			break
		}
		time.Sleep(20 * time.Millisecond)
	}
	if !success {
		t.Fatal("finalizer not asleep?")
	}

	argRegsBefore := runtime.SetIntArgRegs(abi.IntArgRegs)

func SetIntArgRegs(a int) int {
	lock(&finlock)
	old := intArgRegs
	if a >= 0 {
		intArgRegs = a
	}
	unlock(&finlock)
	return old
}

func FinalizerGAsleep() bool {
	return fingStatus.Load()&fingWait != 0
}

// For GCTestMoveStackOnNextCall, it's important not to introduce an
// extra layer of call, since then there's a return before the "real"
// next call.