1 // RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-BOTH
2 // RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -fvisibility hidden -emit-llvm -o - | FileCheck -check-prefix=CHECK-WITH-HIDDEN -check-prefix=CHECK-BOTH %s
3 
4 #include <typeinfo>
5 
6 // CHECK-BOTH: _ZTSP1C = internal constant
7 // CHECK-BOTH: _ZTS1C = internal constant
8 // CHECK-BOTH: _ZTI1C = internal constant
9 // CHECK-BOTH: _ZTIP1C = internal constant
10 // CHECK-BOTH: _ZTSPP1C = internal constant
11 // CHECK-BOTH: _ZTIPP1C = internal constant
12 // CHECK-BOTH: _ZTSM1Ci = internal constant
13 // CHECK-BOTH: _ZTIM1Ci = internal constant
14 // CHECK-BOTH: _ZTSPM1Ci = internal constant
15 // CHECK-BOTH: _ZTIPM1Ci = internal constant
16 // CHECK-BOTH: _ZTSM1CS_ = internal constant
17 // CHECK-BOTH: _ZTIM1CS_ = internal constant
18 // CHECK-BOTH: _ZTSM1CPS_ = internal constant
19 // CHECK-BOTH: _ZTIM1CPS_ = internal constant
20 // CHECK-BOTH: _ZTSM1A1C = internal constant
21 // CHECK: _ZTS1A = linkonce_odr constant
22 // CHECK-WITH-HIDDEN: _ZTS1A = linkonce_odr hidden constant
23 // CHECK: _ZTI1A = linkonce_odr constant
24 // CHECK-WITH-HIDDEN: _ZTI1A = linkonce_odr hidden constant
25 // CHECK-BOTH: _ZTIM1A1C = internal constant
26 // CHECK-BOTH: _ZTSM1AP1C = internal constant
27 // CHECK-BOTH: _ZTIM1AP1C = internal constant
28 
29 // CHECK-WITH-HIDDEN: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
30 // CHECK-WITH-HIDDEN: @_ZTSPK2T4 = linkonce_odr hidden constant
31 // CHECK-WITH-HIDDEN: @_ZTS2T4 = linkonce_odr hidden constant
32 // CHECK-WITH-HIDDEN: @_ZTI2T4 = linkonce_odr hidden constant
33 // CHECK-WITH-HIDDEN: @_ZTIPK2T4 = linkonce_odr hidden constant
34 // CHECK-WITH-HIDDEN: @_ZTSZ2t5vE1A = internal constant
35 // CHECK-WITH-HIDDEN: @_ZTIZ2t5vE1A = internal constant
36 // CHECK-WITH-HIDDEN: @_ZTSZ2t6vE1A = linkonce_odr hidden constant
37 // CHECK-WITH-HIDDEN: @_ZTIZ2t6vE1A = linkonce_odr hidden constant
38 // CHECK-WITH-HIDDEN: @_ZTSPZ2t7vE1A = linkonce_odr hidden constant
39 // CHECK-WITH-HIDDEN: @_ZTSZ2t7vE1A = linkonce_odr hidden constant
40 // CHECK-WITH-HIDDEN: @_ZTIZ2t7vE1A = linkonce_odr hidden constant
41 // CHECK-WITH-HIDDEN: @_ZTIPZ2t7vE1A = linkonce_odr hidden constant
42 
43 // CHECK: _ZTSN12_GLOBAL__N_11DE = internal constant
44 // CHECK: _ZTIN12_GLOBAL__N_11DE = internal constant
45 // CHECK: _ZTSPN12_GLOBAL__N_11DE = internal constant
46 // CHECK: _ZTIPN12_GLOBAL__N_11DE = internal constant
47 // CHECK: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
48 // CHECK: _ZTIFN12_GLOBAL__N_11DEvE = internal constant
49 // CHECK: _ZTSFvN12_GLOBAL__N_11DEE = internal constant
50 // CHECK: _ZTIFvN12_GLOBAL__N_11DEE = internal constant
51 // CHECK: _ZTSPFvvE = linkonce_odr constant
52 // CHECK: _ZTSFvvE = linkonce_odr constant
53 // CHECK: _ZTIFvvE = linkonce_odr constant
54 // CHECK: _ZTIPFvvE = linkonce_odr constant
55 // CHECK: _ZTSN12_GLOBAL__N_11EE = internal constant
56 // CHECK: _ZTIN12_GLOBAL__N_11EE = internal constant
57 // CHECK: _ZTSA10_i = linkonce_odr constant
58 // CHECK: _ZTIA10_i = linkonce_odr constant
59 // CHECK: _ZTI1TILj0EE = linkonce_odr constant
60 // CHECK: _ZTI1TILj1EE = weak_odr constant
61 // CHECK: _ZTI1TILj2EE = external constant
62 // CHECK: _ZTSZ2t5vE1A = internal constant
63 // CHECK: _ZTIZ2t5vE1A = internal constant
64 // CHECK: _ZTS1B = constant
65 // CHECK: _ZTI1B = constant
66 // CHECK: _ZTS1F = linkonce_odr constant
67 // CHECK: _ZTSZ2t6vE1A = linkonce_odr constant
68 // CHECK: _ZTIZ2t6vE1A = linkonce_odr constant
69 // CHECK: _ZTSPZ2t7vE1A = linkonce_odr constant
70 // CHECK: _ZTSZ2t7vE1A = linkonce_odr constant
71 // CHECK: _ZTIZ2t7vE1A = linkonce_odr constant
72 // CHECK: _ZTIPZ2t7vE1A = linkonce_odr constant
73 
74 // CHECK: _ZTIN12_GLOBAL__N_11DE to
75 
76 // A has no key function, so its RTTI data should be linkonce_odr.
77 struct A { };
78 
79 // B has a key function defined in the translation unit, so the RTTI data should
80 // be emitted in this translation unit and have external linkage.
81 struct B : A {
82   virtual void f();
83 };
84 void B::f() { }
85 
86 // C is an incomplete class type, so any direct or indirect pointer types should have
87 // internal linkage, as should the type info for C itself.
88 struct C;
89 
90 void t1() {
91   (void)typeid(C*);
92   (void)typeid(C**);
93   (void)typeid(int C::*);
94   (void)typeid(int C::**);
95   (void)typeid(C C::*);
96   (void)typeid(C *C::*);
97   (void)typeid(C A::*);
98   (void)typeid(C* A::*);
99 }
100 
101 namespace {
102   // D is inside an anonymous namespace, so all type information related to D should have
103   // internal linkage.
104   struct D { };
105 
106   // E is also inside an anonymous namespace.
107   enum E { };
108 
109 };
110 
111 // F has a key function defined in the translation unit, but it is inline so the RTTI
112 // data should be emitted with linkonce_odr linkage.
113 struct F {
114   virtual void f();
115 };
116 
117 inline void F::f() { }
118 const D getD();
119 
120 const std::type_info &t2() {
121   (void)typeid(const D);
122   (void)typeid(D *);
123   (void)typeid(D (*)());
124   (void)typeid(void (*)(D));
125   (void)typeid(void (*)(D&));
126   // The exception specification is not part of the RTTI descriptor, so it should not have
127   // internal linkage.
128   (void)typeid(void (*)() throw (D));
129 
130   (void)typeid(E);
131 
132   return typeid(getD());
133 }
134 
135 namespace Arrays {
136   struct A {
137     static const int a[10];
138   };
139   const std::type_info &f() {
140     return typeid(A::a);
141   }
142 }
143 
144 template <unsigned N> class T {
145   virtual void anchor() {}
146 };
147 template class T<1>;
148 template <> class T<2> { virtual void anchor(); };
149 void t3() {
150   (void) typeid(T<0>);
151   (void) typeid(T<1>);
152   (void) typeid(T<2>);
153 }
154 
155 // rdar://problem/8778973
156 struct T4 {};
157 void t4(const T4 *ptr) {
158   const void *value = &typeid(ptr);
159 }
160 
161 // rdar://16265084
162 void t5() {
163   struct A {};
164   const void *value = &typeid(A);
165 }
166 
167 inline void t6() {
168   struct A {};
169   const void *value = &typeid(A);
170 }
171 void t6_helper() {
172   t6();
173 }
174 
175 inline void t7() {
176   struct A {};
177   const void *value = &typeid(A*);
178 }
179 void t7_helper() {
180   t7();
181 }
182