c := ts.Client()
	tr := c.Transport.(*Transport)
	tr.MaxConnsPerHost = 1

	mu := sync.Mutex{}
	var conns []net.Conn
	var dialCnt, gotConnCnt, tlsHandshakeCnt int32
	tr.Dial = func(network, addr string) (net.Conn, error) {
		atomic.AddInt32(&dialCnt, 1)
		c, err := net.Dial(network, addr)
		mu.Lock()
		defer mu.Unlock()
		conns = append(conns, c)
		return c, err
	}

	doReq := func() {

		case AVPMULL:
			oprangeset(AVPMULL2, t)

		case AVUSHR:
			oprangeset(AVSHL, t)
			oprangeset(AVSRI, t)
			oprangeset(AVSLI, t)
			oprangeset(AVUSRA, t)

		case AVREV32:
			oprangeset(AVCNT, t)
			oprangeset(AVRBIT, t)
			oprangeset(AVREV64, t)
			oprangeset(AVREV16, t)

		case AVZIP1:
			oprangeset(AVZIP2, t)
			oprangeset(AVTRN1, t)
			oprangeset(AVTRN2, t)