}
			if innerCalls == 0 || innerCalls != innerCleanups {
				t.Errorf("mismatched cleanups; got %d want %d", cleanups, calls)
			}
		},
	}, {
		desc:   "cleanup is called on failure",
		failed: true,
		f: func(b *B) {
			var calls, cleanups int
			b.Run("", func(b *B) {
				calls++
				b.Cleanup(func() {
					cleanups++
				})
				b.Fatalf("failure")
			})

	// Switch to g0 stack.
	MOVQ	SP, R12		// callee-saved, preserved across the CALL
	MOVQ	m_g0(R13), R10
	CMPQ	R10, R14
	JE	call	// already on g0
	MOVQ	(g_sched+gobuf_sp)(R10), SP
call:
	ANDQ	$~15, SP	// alignment for gcc ABI
	CALL	AX
	MOVQ	R12, SP
	RET

// void runtime·libfuzzerCallTraceIntCmp(fn, arg0, arg1, fakePC uintptr)
// Calls C function fn from libFuzzer and passes 2 arguments to it after

		// libcCall reentrant; We remember the g/pc/sp for the
		// first call on an M, until that libcCall instance
		// returns.  Reentrance only matters for signals, as
		// libc never calls back into Go.  The tricky case is
		// where we call libcX from an M and record g/pc/sp.
		// Before that call returns, a signal arrives on the
		// same M and the signal handling code calls another
		// libc function.  We don't want that second libcCall

// license that can be found in the LICENSE file.

package codegen

// Check that we elide racefuncenter/racefuncexit for
// functions with no calls (but which might panic
// in various ways). See issue 31219.
// amd64:-"CALL.*racefuncenter.*"
// arm64:-"CALL.*racefuncenter.*"
// ppc64le:-"CALL.*racefuncenter.*"
func RaceMightPanic(a []int, i, j, k, s int) {
	var b [4]int
	_ = b[i]     // panicIndex
	_ = a[i:j]   // panicSlice

    /**
     * Notifies the tracker that the control flow entered the context of a new dynamic call.
     * The tracker itself notifies all the registered listeners.
     *
     * @param entryPoint the key to identify the dynamic call
     */
    void enterDynamicCall(Object entryPoint);

    /**
     * Notifies the tracker that the dynamic call ended.
     * The tracker itself notifies all the registered listeners.
     *

	globalServiceFreezeMu.Lock()
	// If multiple calls, first one creates channel.
	globalServiceFreezeCnt++
	if globalServiceFreezeCnt == 1 {
		globalServiceFreeze.Store(make(chan struct{}))
	}
	globalServiceFreezeMu.Unlock()
}

// unfreezeServices will unfreeze all incoming S3 API calls.
// For each call, unfreezeServices must be called once.
func unfreezeServices() {

	JMP	msancall<>(SB)

// Switches SP to g0 stack and calls (AX). Arguments already set.
TEXT	msancall<>(SB), NOSPLIT, $0-0
	get_tls(R12)
	MOVQ	g(R12), R14
	MOVQ	SP, R12		// callee-saved, preserved across the CALL
	CMPQ	R14, $0
	JE	call	// no g; still on a system stack

	MOVQ	g_m(R14), R13
	// Switch to g0 stack.
	MOVQ	m_g0(R13), R10
	CMPQ	R10, R14
	JE	call	// already on g0

	MOVQ	(g_sched+gobuf_sp)(R10), SP
call:

}

func TestDoDupSuppress(t *testing.T) {
	var g Group
	var wg1, wg2 sync.WaitGroup
	c := make(chan string, 1)
	var calls atomic.Int32
	fn := func() (any, error) {
		if calls.Add(1) == 1 {
			// First invocation.
			wg1.Done()
		}
		v := <-c
		c <- v // pump; make available for any future calls

		time.Sleep(10 * time.Millisecond) // let more goroutines enter Do

		return v, nil
	}

	const n = 10

	"unsafe"
)

// read calls the read system call.
// It returns a non-negative number of bytes written or a negative errno value.
func read(fd int32, p unsafe.Pointer, n int32) int32

func closefd(fd int32) int32

func exit(code int32)
func usleep(usec uint32)

//go:nosplit
func usleep_no_g(usec uint32) {
	usleep(usec)
}

// write1 calls the write system call.

)

// PrintStack prints to standard error the stack trace returned by runtime.Stack.
func PrintStack() {
	os.Stderr.Write(Stack())
}

// Stack returns a formatted stack trace of the goroutine that calls it.
// It calls [runtime.Stack] with a large enough buffer to capture the entire trace.
func Stack() []byte {
	buf := make([]byte, 1024)
	for {
		n := runtime.Stack(buf, false)
		if n < len(buf) {
			return buf[:n]
		}