1 // RUN: %clang_cc1 %s -triple x86_64-unknown-linux -fno-rtti-data -fsyntax-only -verify
2 
3 namespace std {
4 struct type_info {};
5 } // namespace std
6 class B {
7 public:
8   virtual ~B() = default;
9 };
10 
11 class D1 : public B {
12 public:
13   ~D1() = default;
14 };
15 
16 void f() {
17   B *b = new D1();
18   auto d = dynamic_cast<D1 *>(b); // expected-warning{{dynamic_cast will not work since RTTI data is disabled by -fno-rtti-data}}
19   void *v = dynamic_cast<void *>(b);
20 
21   (void)typeid(int);
22   (void)typeid(b);
23   (void)typeid(*b); // expected-warning{{typeid will not work since RTTI data is disabled by -fno-rtti-data}}
24   B b2 = *b;
25   (void)typeid(b2);
26   (void)typeid(*&b2); // expected-warning{{typeid will not work since RTTI data is disabled by -fno-rtti-data}}
27   (void)typeid((B &)b2);
28 
29   B &br = b2;
30   (void)typeid(br); // expected-warning{{typeid will not work since RTTI data is disabled by -fno-rtti-data}}
31   (void)typeid(&br);
32 }