// *byte is really *runtime.Type
func makechan64(chanType *byte, size int64) (hchan chan any)
func makechan(chanType *byte, size int) (hchan chan any)
func chanrecv1(hchan <-chan any, elem *any)
func chanrecv2(hchan <-chan any, elem *any) bool
func chansend1(hchan chan<- any, elem *any)
func closechan(hchan chan<- any)
func chanlen(hchan any) int
func chancap(hchan any) int

	{"mapdelete_fast64", funcTag, 93},
	{"mapdelete_faststr", funcTag, 94},
	{"mapiternext", funcTag, 95},
	{"mapclear", funcTag, 96},
	{"makechan64", funcTag, 98},
	{"makechan", funcTag, 99},
	{"chanrecv1", funcTag, 101},
	{"chanrecv2", funcTag, 102},
	{"chansend1", funcTag, 104},
	{"closechan", funcTag, 105},
	{"chanlen", funcTag, 106},
	{"chancap", funcTag, 106},
	{"writeBarrier", varTag, 108},

}

// entry points for <- c from compiled code.
//
//go:nosplit
func chanrecv1(c *hchan, elem unsafe.Pointer) {
	chanrecv(c, elem, true)
}

//go:nosplit
func chanrecv2(c *hchan, elem unsafe.Pointer) (received bool) {
	_, received = chanrecv(c, elem, true)
	return
}

// chanrecv receives on channel c and writes the received data to ep.

	walkExprListSafe(n.Lhs, init)
	r.X = walkExpr(r.X, init)
	var n1 ir.Node
	if ir.IsBlank(n.Lhs[0]) {
		n1 = typecheck.NodNil()
	} else {
		n1 = typecheck.NodAddr(n.Lhs[0])
	}
	fn := chanfn("chanrecv2", 2, r.X.Type())
	ok := n.Lhs[1]
	call := mkcall1(fn, types.Types[types.TBOOL], init, r.X, n1)
	return typecheck.Stmt(ir.NewAssignStmt(base.Pos, ok, call))
}

// walkReturn walks an ORETURN node.

				{"main.main.func2", 0},
			}},
			{trace.EventStateTransition, "Goroutine Running->Waiting", []frame{
				{"runtime.chanrecv1", 0},
				{"main.main.func3", 0},
			}},
			{trace.EventStateTransition, "Goroutine Running->Waiting", []frame{
				{"runtime.chanrecv1", 0},
				{"main.main.func4", 0},
			}},
			{trace.EventStateTransition, "Goroutine Waiting->Runnable", []frame{
				{"runtime.chansend1", 0},

	lastStwReason  uint64

	inlineToStringID  []uint64
	builtinToStringID []uint64
}

const (
	// Block reasons
	sForever = iota
	sPreempted
	sGosched
	sSleep
	sChanSend
	sChanRecv
	sNetwork
	sSync
	sSyncCond
	sSelect
	sEmpty
	sMarkAssistWait

	// STW kinds
	sSTWUnknown
	sSTWGCMarkTermination
	sSTWGCSweepTermination
	sSTWWriteHeapDump
	sSTWGoroutineProfile

	// copying needs to acquire channel locks to protect these
	// areas of the stack.
	activeStackChans bool
	// parkingOnChan indicates that the goroutine is about to
	// park on a chansend or chanrecv. Used to signal an unsafe point
	// for stack shrinking.
	parkingOnChan atomic.Bool
	// inMarkAssist indicates whether the goroutine is in mark assist.
	// Used by the execution tracer.
	inMarkAssist bool

String id=138
	data="runtime.traceStartReadCPU"
String id=139
	data="/usr/local/google/home/mknyszek/work/go-1/src/runtime/trace2cpu.go"
String id=140
	data="runtime.chanrecv1"
String id=141
	data="/usr/local/google/home/mknyszek/work/go-1/src/runtime/chan.go"
String id=142
	data="runtime.(*wakeableSleep).sleep"
String id=143
	data="runtime.traceStartReadCPU.func1"