type K struct {
	a, b int32 // these get merged by the compiler into a single field, something typehash doesn't do
	c    float64
}

func main() {
	k := K{a: 1, b: 2, c: 3}

	// Make a reflect map.
	m := reflect.MakeMap(reflect.MapOf(reflect.TypeOf(K{}), reflect.TypeOf(true)))
	m.SetMapIndex(reflect.ValueOf(k), reflect.ValueOf(true))

	// The binary must not contain the type map[K]bool anywhere, or reflect.MapOf

	c := make(chan bool)
	go func() {
		_ = l
		c <- true
	}()
	l = LogImpl{}
	<-c
	return
}

var _ LogImpl = NewLog()

func MakeMap() map[int]int {
	return make(map[int]int)
}

func InstrumentMapLen() {
	_ = len(MakeMap())
}

func InstrumentMapLen2() {
	m := make(map[int]map[int]int)
	_ = len(m[0])
}

func InstrumentMapLen3() {
	m := make(map[int]*map[int]int)

func printnl()

//go:noescape
func useT40(*T40)

type T40 struct {
	m map[int]int
}

func newT40() *T40 {
	ret := T40{}
	ret.m = make(map[int]int, 42) // ERROR "live at call to makemap: &ret$"
	return &ret
}

func bad40() {
	t := newT40() // ERROR "stack object ret T40$" "stack object .autotmp_[0-9]+ runtime.hmap$"
	printnl()     // ERROR "live at call to printnl: ret$"
	useT40(t)
}

 *
 * <p>Usage example:
 *
 * <pre>{@code
 * ConcurrentMap<Request, Stopwatch> timers = new MapMaker()
 *     .concurrencyLevel(4)
 *     .weakKeys()
 *     .makeMap();
 * }</pre>
 *
 * <p>These features are all optional; {@code new MapMaker().makeMap()} returns a valid concurrent
 * map that behaves similarly to a {@link ConcurrentHashMap}.
 *

    // GWT technically only supports concurrencyLevel == 1, but we silently
    // ignore other positive values.
    return this;
  }

  public <K, V> ConcurrentMap<K, V> makeMap() {
    return new ConcurrentHashMap<K, V>(initialCapacity);
  }

 *
 * <p>Usage example:
 *
 * <pre>{@code
 * ConcurrentMap<Request, Stopwatch> timers = new MapMaker()
 *     .concurrencyLevel(4)
 *     .weakKeys()
 *     .makeMap();
 * }</pre>
 *
 * <p>These features are all optional; {@code new MapMaker().makeMap()} returns a valid concurrent
 * map that behaves similarly to a {@link ConcurrentHashMap}.
 *

        checkState(newMap instanceof MapMakerInternalMap);
        newMap.putAll(map);
        return newMap;
      }
    },
    MapMakerStrongKeysWeakValues {
      @Override
      public <K extends Comparable<K>, V> Map<K, V> create(Map<K, V> map) {
        ConcurrentMap<K, V> newMap = new MapMaker().weakValues().makeMap();

// Issue 44956: writable static temp is not exported correctly.
// In the test below, package base is
//
//     X = &map{...}
//
// which compiles to
//
//     X = &stmp           // static
//     stmp = makemap(...) // in init function
//
// plugin1 and plugin2 both import base. plugin1 doesn't use
// base.X, so that symbol is deadcoded in plugin1.
//
// plugin1 is loaded first. base.init runs at that point, which

    private final Lock lock = new ReentrantLock();
    private final Map<Class<?>, Collection<URI>> classPathCache;

    public ClasspathInferer() {
        this.classPathCache = new MapMaker().weakKeys().makeMap();
    }

    public void getClassPathFor(Class<?> targetClass, Collection<URI> dest) {
        lock.lock();
        try {
            Collection<URI> classPath = classPathCache.get(targetClass);

}

func makemap0() {
	m := make(map[int]int) // ERROR "make\(map\[int\]int\) does not escape$"
	m[0] = 0
	m[1]++
	delete(m, 1)
	sink = m[0] // ERROR "m\[0\] escapes to heap$"
}

func makemap1() map[int]int {
	return make(map[int]int) // ERROR "make\(map\[int\]int\) escapes to heap$"
}

func makemap2() {