Eq("a", "loop2", "exit1"),
		),
		Bloc("loop2",
			Eq("a", "loop1", "exit2"),
		),
		Bloc("exit1",
			// store before call, y is available in a register
			Valu("mem2", OpAMD64MOVQstore, types.TypeMem, 0, nil, "p", "y", "mem"),
			Valu("mem3", OpAMD64CALLstatic, types.TypeMem, 0, AuxCallLSym("_"), "mem2"),
			Exit("mem3"),
		),
		Bloc("exit2",

import (
	"sync"
	_ "unsafe" // for linkname
)

// PanicOnExit0 reports whether to panic on a call to os.Exit(0).
// This is in the testlog package because, like other definitions in
// package testlog, it is a hook between the testing package and the
// os package. This is used to ensure that an early call to os.Exit(0)
// does not cause a test to pass.
func PanicOnExit0() bool {
	panicOnExit0.mu.Lock()
	defer panicOnExit0.mu.Unlock()

	var runCalled bool
	var runSkipped bool
	var exitCode int
	runFn := func(ctx *suiteContext) int {
		runCalled = true
		runSkipped = ctx.skipped
		return -1
	}
	exitFn := func(code int) {
		exitCode = code
	}

	s := newTestSuite("tid", runFn, exitFn, defaultSettingsFn)
	s.Run()

	g.Expect(runCalled).To(BeTrue())
	g.Expect(runSkipped).To(BeFalse())
	g.Expect(exitCode).To(Equal(-1))
}

                <mxCell id="0"/>
                <mxCell id="1" parent="0"/>
                <mxCell id="8" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;strokeWidth=3;exitX=0.092;exitY=1.01;exitDx=0;exitDy=0;dashed=1;exitPerimeter=0;" parent="1" edge="1">
                    <mxGeometry relative="1" as="geometry">
                        <Array as="points">
                            <mxPoint x="800" y="521"/>

	n := 16
	wg1.Add(n)
	wg2.Add(n)
	exited := make(chan bool, n)
	for i := 0; i != n; i++ {
		go func(i int) {
			wg1.Done()
			wg2.Wait()
			exited <- true
		}(i)
	}
	wg1.Wait()
	for i := 0; i != n; i++ {
		select {
		case <-exited:
			t.Fatal("SafeWaitGroup released group too soon")
		default:
		}
		wg2.Done()
	}
	for i := 0; i != n; i++ {
		<-exited // Will block if barrier fails to unlock someone.

			// GDB bug: Sometimes it fails to wait for a clone child.
			testenv.SkipFlaky(t, 60553)
		case bytes.Contains(got, []byte(" exited normally]\n")):
			// GDB bug: Sometimes the inferior exits fine,
			// but then GDB hangs.
			testenv.SkipFlaky(t, 37405)
		}
		t.Fatalf("gdb exited with error: %v", err)
	}

	// Check that the backtrace matches the source code.
	bt := []string{
		"eee",
		"ddd",
		"ccc",

func minit() {
	if atomic.Load(&exiting) != 0 {
		exits(&emptystatus[0])
	}
	// Mask all SSE floating-point exceptions
	// when running on the 64-bit kernel.
	setfpmasks()
}

// Called from dropm to undo the effect of an minit.
func unminit() {
}

// Called from exitm, but not from drop, to undo the effect of thread-owned

   * process with an exit status of 1, indicating abnormal termination.
   */
  public static UncaughtExceptionHandler systemExit() {
    return new Exiter(Runtime.getRuntime());
  }

  @VisibleForTesting
  static final class Exiter implements UncaughtExceptionHandler {
    private static final LazyLogger logger = new LazyLogger(Exiter.class);

    private final Runtime runtime;

}

func (p *ProcessState) String() string {
	if p == nil {
		return "<nil>"
	}
	return "exit status: " + p.status.Msg
}

// ExitCode returns the exit code of the exited process, or -1
// if the process hasn't exited or was terminated by a signal.
func (p *ProcessState) ExitCode() int {
	// return -1 if the process hasn't started.
	if p == nil {
		return -1
	}

   * process with an exit status of 1, indicating abnormal termination.
   */
  public static UncaughtExceptionHandler systemExit() {
    return new Exiter(Runtime.getRuntime());
  }

  @VisibleForTesting
  static final class Exiter implements UncaughtExceptionHandler {
    private static final LazyLogger logger = new LazyLogger(Exiter.class);

    private final Runtime runtime;