}

func BenchmarkInt64N1000(b *testing.B) {
	r := testRand()
	var t int64
	arg := keep(int64(1000))
	for n := b.N; n > 0; n-- {
		t += r.Int64N(arg)
	}
	Sink = uint64(t)
}

func BenchmarkInt64N1e8(b *testing.B) {
	r := testRand()
	var t int64
	arg := keep(int64(1e8))
	for n := b.N; n > 0; n-- {
		t += r.Int64N(arg)
	}
	Sink = uint64(t)
}

func BenchmarkInt64N1e9(b *testing.B) {