register("RecoverBeforePanicAfterGoexit", RecoverBeforePanicAfterGoexit)
	register("RecoverBeforePanicAfterGoexit2", RecoverBeforePanicAfterGoexit2)
	register("PanicTraceback", PanicTraceback)
	register("GoschedInPanic", GoschedInPanic)
	register("SyscallInPanic", SyscallInPanic)
	register("PanicLoop", PanicLoop)
}

func SimpleDeadlock() {
	select {}
	panic("not reached")
}

	if !strings.HasSuffix(output, want) {
		t.Fatalf("output does not start with %q:\n%s", want, output)
	}
}

func TestPanicTraceback(t *testing.T) {
	t.Parallel()
	output := runTestProg(t, "testprog", "PanicTraceback")
	want := "panic: hello\n\tpanic: panic pt2\n\tpanic: panic pt1\n"
	if !strings.HasPrefix(output, want) {
		t.Fatalf("output does not start with %q:\n%s", want, output)
	}

	// Check functions in the traceback.