{"runtime.mapdelete_fast32", 1},
	{"runtime.mapdelete_fast64", 1},
	{"runtime.mapdelete_faststr", 1},
	{"runtime.mapiternext", 1},
	{"runtime.mapclear", 1},
	{"runtime.makechan64", 1},
	{"runtime.makechan", 1},
	{"runtime.chanrecv1", 1},
	{"runtime.chanrecv2", 1},
	{"runtime.chansend1", 1},
	{"runtime.closechan", 1},
	{"runtime.chanlen", 1},
	{"runtime.chancap", 1},
	{"runtime.writeBarrier", 0},

				return fmt.Sprintf("CHAN%d", i)
			}
		}
		return "CHAN???"
	default:
		return fmt.Sprint(key)
	}
}

var (
	ints  [3]int
	chans = makeChans()
	pin   runtime.Pinner
)

func makeChans() []chan int {
	cs := []chan int{make(chan int), make(chan int), make(chan int)}
	// Order channels by address. See issue #49431.
	for i := range cs {