gmp := runtime.GOMAXPROCS(-1)
		var wg sync.WaitGroup
		for i := range gmp {
			wg.Add(1)
			go func(id int) {
				defer wg.Done()

				makeKey := func(s string) string {
					return s + "-" + strconv.Itoa(id)
				}
				for _, s := range testData {
					key := makeKey(s)
					expectMissing(t, key, 0)(m.Load(key))
					expectStored(t, key, id)(m.LoadOrStore(key, id))
					expectPresent(t, key, id)(m.Load(key))

			w.byte(')')
		}

	case *Named:
		// If hashing, write a unique prefix for t to represent its identity, since
		// named type identity is pointer identity.
		if w.ctxt != nil {
			w.string(strconv.Itoa(w.ctxt.getID(t)))
		}
		w.typeName(t.obj) // when hashing written for readability of the hash only
		if t.inst != nil {
			// instantiated type
			w.typeList(t.inst.targs.list())

		// These are all interruptible, they just encode a nonstandard
		// way of recovering when interrupted.
		return false
	default:
		var buf [20]byte
		panic("invalid unsafe point code " + string(itoa(buf[:], uint64(v))))
	}
}

type TraceMap struct {
	traceMap
}

func (m *TraceMap) PutString(s string) (uint64, bool) {

	internal/cpu,
	internal/goarch,
	internal/godebugs,
	internal/goexperiment,
	internal/goos,
	internal/profilerecord,
	math/bits
	< internal/bytealg
	< internal/stringslite
	< internal/itoa
	< internal/unsafeheader
	< runtime/internal/sys
	< internal/runtime/syscall
	< internal/runtime/atomic
	< internal/runtime/exithook
	< runtime/internal/math
	< runtime
	< sync/atomic
	< internal/race

	//   counterVar[0] = <num_units>
	//   counterVar[1] = pkgId
	//   counterVar[2] = fnId
	//
	cv := f.fn.counterVar
	regHook := hookWrite(cv, 0, strconv.Itoa(len(f.fn.units))) + " ; " +
		hookWrite(cv, 1, mkPackageIdExpression()) + " ; " +
		hookWrite(cv, 2, strconv.Itoa(int(funcId))) + singleCtr

	// Insert the registration sequence into the function. We want this sequence to

			w.byte(')')
		}

	case *Named:
		// If hashing, write a unique prefix for t to represent its identity, since
		// named type identity is pointer identity.
		if w.ctxt != nil {
			w.string(strconv.Itoa(w.ctxt.getID(t)))
		}
		w.typeName(t.obj) // when hashing written for readability of the hash only
		if t.inst != nil {
			// instantiated type
			w.typeList(t.inst.targs.list())

		{`package f6b; var _            =  1e-2000i`, `1e-2000i`, `complex128`, `(0 + 0i)`},
		{`package f7b; var _            = -1e-2000i`, `-1e-2000i`, `complex128`, `(0 + 0i)`},

		{`package g0; const (a = len([iota]int{}); b; c); const _ = c`, `c`, `int`, `2`}, // go.dev/issue/22341
		{`package g1; var(j int32; s int; n = 1.0<<s == j)`, `1.0`, `int32`, `1`},        // go.dev/issue/48422
	}

	for _, test := range tests {

// package monkey-patches those variables before running tests).
func TestMain(m *testing.M) {
	flag.Parse()

	pid := os.Getpid()
	if os.Getenv("GO_EXEC_TEST_PID") == "" {
		os.Setenv("GO_EXEC_TEST_PID", strconv.Itoa(pid))

		if runtime.GOOS == "windows" {
			// Normalize environment so that test behavior is consistent.
			// (The behavior of LookPath varies depending on this variable.)
			//

//	-                   invalid position without file name
func (pos Position) String() string {
	s := pos.Filename
	if pos.IsValid() {
		if s != "" {
			s += ":"
		}
		s += strconv.Itoa(pos.Line)
		if pos.Column != 0 {
			s += fmt.Sprintf(":%d", pos.Column)
		}
	}
	if s == "" {
		s = "-"
	}
	return s
}

// Pos is a compact encoding of a source position within a file set.

	for i, field := range fields {
		if field.Name == "" {
			panic("reflect.StructOf: field " + strconv.Itoa(i) + " has no name")
		}
		if !isValidFieldName(field.Name) {
			panic("reflect.StructOf: field " + strconv.Itoa(i) + " has invalid name")
		}
		if field.Type == nil {
			panic("reflect.StructOf: field " + strconv.Itoa(i) + " has no type")
		}
		f, fpkgpath := runtimeStructField(field)
		ft := f.Typ