func (ctxt *Context) instanceHash(orig Type, targs []Type) string {
	assert(ctxt != nil)
	assert(orig != nil)
	var buf bytes.Buffer

	h := newTypeHasher(&buf, ctxt)
	h.string(strconv.Itoa(ctxt.getID(orig)))
	// Because we've already written the unique origin ID this call to h.typ is
	// unnecessary, but we leave it for hash readability. It can be removed later
	// if performance is an issue.
	h.typ(orig)

type Point struct {
	X, Y int
}

// String returns a string representation of p like "(3,4)".
func (p Point) String() string {
	return "(" + strconv.Itoa(p.X) + "," + strconv.Itoa(p.Y) + ")"
}

// Add returns the vector p+q.
func (p Point) Add(q Point) Point {
	return Point{p.X + q.X, p.Y + q.Y}
}

// Sub returns the vector p-q.
func (p Point) Sub(q Point) Point {

	ints := make([]int, n)
	for i := 0; i < n; i++ {
		ints[i] = n - i
	}
	return ints
}

func makeSortedStrings(n int) []string {
	x := make([]string, n)
	for i := 0; i < n; i++ {
		x[i] = strconv.Itoa(i)
	}
	Strings(x)
	return x
}

const N = 100_000

func BenchmarkSortInts(b *testing.B) {
	for i := 0; i < b.N; i++ {
		b.StopTimer()
		ints := makeRandomInts(N)
		b.StartTimer()

	if !ok || z0.Kind == BlockInvalid {
		t.Errorf("case2 z0 is eliminated, but should not")
	}
}

func BenchmarkFuse(b *testing.B) {
	for _, n := range [...]int{1, 10, 100, 1000, 10000} {
		b.Run(strconv.Itoa(n), func(b *testing.B) {
			c := testConfig(b)

			blocks := make([]bloc, 0, 2*n+3)
			blocks = append(blocks,
				Bloc("entry",
					Valu("mem", OpInitMem, types.TypeMem, 0, nil),

		}
		if keep {
			filtered.Events = append(filtered.Events, e)
		}
	}
	return
}

func stackFrames(data *format.Data, stackID int) (frames []string) {
	for {
		frame, ok := data.Frames[strconv.Itoa(stackID)]
		if !ok {
			return
		}
		frames = append(frames, frame.Name)
		stackID = frame.Parent
	}
}

func checkProcStartStop(t *testing.T, data format.Data) {
	procStarted := map[uint64]bool{}

func (ctxt *Context) instanceHash(orig Type, targs []Type) string {
	assert(ctxt != nil)
	assert(orig != nil)
	var buf bytes.Buffer

	h := newTypeHasher(&buf, ctxt)
	h.string(strconv.Itoa(ctxt.getID(orig)))
	// Because we've already written the unique origin ID this call to h.typ is
	// unnecessary, but we leave it for hash readability. It can be removed later
	// if performance is an issue.
	h.typ(orig)

	c := strconv.IsPrint('\u263a')
	fmt.Println(c)

	bel := strconv.IsPrint('\007')
	fmt.Println(bel)

	// Output:
	// true
	// false
}

func ExampleItoa() {
	i := 10
	s := strconv.Itoa(i)
	fmt.Printf("%T, %v\n", s, s)

	// Output:
	// string, 10
}

func ExampleParseBool() {
	v := "true"
	if s, err := strconv.ParseBool(v); err == nil {
		fmt.Printf("%T, %v\n", s, s)
	}

	var cases []SelectCase
	for i := 0; i < 8; i++ {
		cases = append(cases, SelectCase{
			Dir:  SelectRecv,
			Chan: ValueOf(channel),
		})
	}
	for _, numCases := range []int{1, 4, 8} {
		b.Run(strconv.Itoa(numCases), func(b *testing.B) {
			b.ReportAllocs()
			for i := 0; i < b.N; i++ {
				_, _, _ = Select(cases[:numCases])
			}
		})
	}
}

func BenchmarkCall(b *testing.B) {

	return int(defaultGOAMD64[len("v")] - '0')
}

type goarmFeatures struct {
	Version   int
	SoftFloat bool
}

func (g goarmFeatures) String() string {
	armStr := strconv.Itoa(g.Version)
	if g.SoftFloat {
		armStr += ",softfloat"
	} else {
		armStr += ",hardfloat"
	}
	return armStr
}

func goarm() (g goarmFeatures) {
	const (
		softFloatOpt = ",softfloat"

		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))