1 // RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -fhidden-weak-vtables -emit-llvm -o - | FileCheck %s
2 // RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -fvisibility hidden -fhidden-weak-vtables -emit-llvm -o - | FileCheck -check-prefix=CHECK-WITH-HIDDEN %s
3 
4 #include <typeinfo>
5 
6 // CHECK-WITH-HIDDEN: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
7 // CHECK-WITH-HIDDEN: @_ZTSPK2T4 = linkonce_odr hidden constant
8 // CHECK-WITH-HIDDEN: @_ZTS2T4 = linkonce_odr hidden constant
9 // CHECK-WITH-HIDDEN: @_ZTI2T4 = linkonce_odr hidden unnamed_addr constant
10 // CHECK-WITH-HIDDEN: @_ZTIPK2T4 = linkonce_odr hidden unnamed_addr constant
11 
12 // CHECK: _ZTSP1C = internal constant
13 // CHECK: _ZTS1C = internal constant
14 // CHECK: _ZTI1C = internal unnamed_addr constant
15 // CHECK: _ZTIP1C = internal unnamed_addr constant
16 // CHECK: _ZTSPP1C = internal constant
17 // CHECK: _ZTIPP1C = internal unnamed_addr constant
18 // CHECK: _ZTSM1Ci = internal constant
19 // CHECK: _ZTIM1Ci = internal unnamed_addr constant
20 // CHECK: _ZTSPM1Ci = internal constant
21 // CHECK: _ZTIPM1Ci = internal unnamed_addr constant
22 // CHECK: _ZTSM1CS_ = internal constant
23 // CHECK: _ZTIM1CS_ = internal unnamed_addr constant
24 // CHECK: _ZTSM1CPS_ = internal constant
25 // CHECK: _ZTIM1CPS_ = internal unnamed_addr constant
26 // CHECK: _ZTSM1A1C = internal constant
27 // CHECK: _ZTS1A = linkonce_odr constant
28 // CHECK: _ZTI1A = linkonce_odr hidden unnamed_addr constant
29 // CHECK: _ZTIM1A1C = internal unnamed_addr constant
30 // CHECK: _ZTSM1AP1C = internal constant
31 // CHECK: _ZTIM1AP1C = internal unnamed_addr constant
32 // CHECK: _ZTSN12_GLOBAL__N_11DE = internal constant
33 // CHECK: _ZTIN12_GLOBAL__N_11DE = internal unnamed_addr constant
34 // CHECK: _ZTSPN12_GLOBAL__N_11DE = internal constant
35 // CHECK: _ZTIPN12_GLOBAL__N_11DE = internal unnamed_addr constant
36 // CHECK: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
37 // CHECK: _ZTIFN12_GLOBAL__N_11DEvE = internal unnamed_addr constant
38 // CHECK: _ZTSFvN12_GLOBAL__N_11DEE = internal constant
39 // CHECK: _ZTIFvN12_GLOBAL__N_11DEE = internal unnamed_addr constant
40 // CHECK: _ZTSPFvvE = linkonce_odr constant
41 // CHECK: _ZTSFvvE = linkonce_odr constant
42 // CHECK: _ZTIFvvE = linkonce_odr hidden unnamed_addr constant
43 // CHECK: _ZTIPFvvE = linkonce_odr hidden unnamed_addr constant
44 // CHECK: _ZTSN12_GLOBAL__N_11EE = internal constant
45 // CHECK: _ZTIN12_GLOBAL__N_11EE = internal unnamed_addr constant
46 // CHECK: _ZTSA10_i = linkonce_odr constant
47 // CHECK: _ZTIA10_i = linkonce_odr hidden unnamed_addr constant
48 // CHECK: _ZTI1TILj0EE = linkonce_odr unnamed_addr constant
49 // CHECK: _ZTI1TILj1EE = weak_odr unnamed_addr constant
50 // CHECK: _ZTI1TILj2EE = external constant
51 // CHECK: _ZTS1B = constant
52 // CHECK: _ZTI1B = unnamed_addr constant
53 // CHECK: _ZTS1F = linkonce_odr constant
54 
55 // CHECK: _ZTIN12_GLOBAL__N_11DE to
56 
57 // A has no key function, so its RTTI data should be linkonce_odr.
58 struct A { };
59 
60 // B has a key function defined in the translation unit, so the RTTI data should
61 // be emitted in this translation unit and have external linkage.
62 struct B : A {
63   virtual void f();
64 };
65 void B::f() { }
66 
67 // C is an incomplete class type, so any direct or indirect pointer types should have
68 // internal linkage, as should the type info for C itself.
69 struct C;
70 
71 void t1() {
72   (void)typeid(C*);
73   (void)typeid(C**);
74   (void)typeid(int C::*);
75   (void)typeid(int C::**);
76   (void)typeid(C C::*);
77   (void)typeid(C *C::*);
78   (void)typeid(C A::*);
79   (void)typeid(C* A::*);
80 }
81 
82 namespace {
83   // D is inside an anonymous namespace, so all type information related to D should have
84   // internal linkage.
85   struct D { };
86 
87   // E is also inside an anonymous namespace.
88   enum E { };
89 
90 };
91 
92 // F has a key function defined in the translation unit, but it is inline so the RTTI
93 // data should be emitted with linkonce_odr linkage.
94 struct F {
95   virtual void f();
96 };
97 
98 inline void F::f() { }
99 const D getD();
100 
101 const std::type_info &t2() {
102   (void)typeid(const D);
103   (void)typeid(D *);
104   (void)typeid(D (*)());
105   (void)typeid(void (*)(D));
106   (void)typeid(void (*)(D&));
107   // The exception specification is not part of the RTTI descriptor, so it should not have
108   // internal linkage.
109   (void)typeid(void (*)() throw (D));
110 
111   (void)typeid(E);
112 
113   return typeid(getD());
114 }
115 
116 namespace Arrays {
117   struct A {
118     static const int a[10];
119   };
120   const std::type_info &f() {
121     return typeid(A::a);
122   }
123 }
124 
125 template <unsigned N> class T {
126   virtual void anchor() {}
127 };
128 template class T<1>;
129 template <> class T<2> { virtual void anchor(); };
130 void t3() {
131   (void) typeid(T<0>);
132   (void) typeid(T<1>);
133   (void) typeid(T<2>);
134 }
135 
136 // rdar://problem/8778973
137 struct T4 {};
138 void t4(const T4 *ptr) {
139   const void *value = &typeid(ptr);
140 }
141