// we copy directly. Note that we need to increment
			// the head/tail locations only when raceenabled.
			racenotify(c, c.recvx, nil)
			racenotify(c, c.recvx, sg)
			c.recvx++
			if c.recvx == c.dataqsiz {
				c.recvx = 0
			}
			c.sendx = c.recvx // c.sendx = (c.sendx+1) % c.dataqsiz
		}
	}
	if sg.elem != nil {
		sendDirect(c.elemtype, sg, ep)
		sg.elem = nil
	}
	gp := sg.g

		}
		racenotify(c, c.recvx, nil)
	}
	if msanenabled && cas.elem != nil {
		msanwrite(cas.elem, c.elemtype.Size_)
	}
	if asanenabled && cas.elem != nil {
		asanwrite(cas.elem, c.elemtype.Size_)
	}
	recvOK = true
	qp = chanbuf(c, c.recvx)
	if cas.elem != nil {
		typedmemmove(c.elemtype, cas.elem, qp)
	}
	typedmemclr(c.elemtype, qp)
	c.recvx++
	if c.recvx == c.dataqsiz {
		c.recvx = 0

		return str(self.val.type)

	def children(self):
		# see chan.c chanbuf(). et is the type stolen from hchan<T>::recvq->first->elem
		et = [x.type for x in self.val['recvq']['first'].type.target().fields() if x.name == 'elem'][0]
		ptr = (self.val.address["buf"]).cast(et)
		for i in range(self.val["qcount"]):
			j = (self.val["recvx"] + i) % self.val["dataqsiz"]
			yield ('[{0}]'.format(i), (ptr + j).dereference())

			for p := 0; p < P; p++ {
				go func() {
					recv := make(map[int]int)
					for i := 0; i < L; i++ {
						v := <-c
						recv[v] = recv[v] + 1
					}
					done <- recv
				}()
			}
			recv := make(map[int]int)
			for p := 0; p < P; p++ {
				for k, v := range <-done {
					recv[k] = recv[k] + v
				}
			}
			if len(recv) != L {

	select {
	case c <- 1:
	}
}

func send3(recv func(<-chan int)) {
	c := make(chan int)
	go recv(c)
	runtime.Gosched()
	c2 := make(chan int)
	select {
	case c <- 1:
	case c2 <- 1:
	}
}

func main() {
	send1(recv1)
	send2(recv1)
	send3(recv1)
	send1(recv2)
	send2(recv2)
	send3(recv2)
	send1(recv3)
	send2(recv3)
	send3(recv3)

    Node* recv1 = RecvAtHost(
        ops::NodeOut(key_constant, 0), "F1", "F1", "O1", {DT_FLOAT, DT_FLOAT},
        b2.opts().WithAttr(kXlaHasHostTransferAttrName, true));
    Node* e = Binary(ops::NodeOut(recv1, 0), ops::NodeOut(recv1, 1),
                     b2.opts()
                         .WithName("E")
                         .WithControlInputs({recv1})

	"golang.org/x/tools/internal/aliases"
)

// ReceiverNamed returns the named type (if any) associated with the
// type of recv, which may be of the form N or *N, or aliases thereof.
// It also reports whether a Pointer was present.
func ReceiverNamed(recv *types.Var) (isPtr bool, named *types.Named) {
	t := recv.Type()
	if ptr, ok := aliases.Unalias(t).(*types.Pointer); ok {
		isPtr = true
		t = ptr.Elem()
	}

package main

type Recv <-chan int

type sliceOf[E any] interface {
	~[]E
}

func _Append[S sliceOf[T], T any](s S, t ...T) S {
	return append(s, t...)
}

func main() {
	recv := make(Recv)
	a := _Append([]Recv{recv}, recv)
	if len(a) != 2 || a[0] != recv || a[1] != recv {
		panic(a)
	}

	recv2 := make(chan<- int)
	a2 := _Append([]chan<- int{recv2}, recv2)

		})

		// hchan<T>
		dwhs := d.mkinternaltype(ctxt, dwarf.DW_ABRV_STRUCTTYPE, "hchan", elemname, "", func(dwh *dwarf.DWDie) {
			d.copychildren(ctxt, dwh, hchan)
			d.substitutetype(dwh, "recvq", dwws)
			d.substitutetype(dwh, "sendq", dwws)
			newattr(dwh, dwarf.DW_AT_byte_size, dwarf.DW_CLS_CONSTANT, getattr(hchan, dwarf.DW_AT_byte_size).Value, nil)
		})

	if x := c.Recv(); x != 1 {
		println("testasync1: Recv did not get 1:", x, c.Impl())
		failed = true
	}

	test1(c)
}

func testasync2(c Chan) {
	// should be able to get the last value via Recv2
	if x, ok := c.Recv2(); x != 1 || !ok {
		println("testasync1: Recv did not get 1, true:", x, ok, c.Impl())
		failed = true
	}

	test1(c)
}

func testasync3(c Chan) {