1 // RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -emit-llvm -o - | \
2 // RUN:    FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-BOTH \
3 // RUN:   -DLINKONCE_VIS_CONSTANT='linkonce_odr constant'
4 // RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -fvisibility hidden -emit-llvm -o - | \
5 // RUN:    FileCheck %s -check-prefix=CHECK-WITH-HIDDEN -check-prefix=CHECK-BOTH \
6 // RUN:   -DLINKONCE_VIS_CONSTANT='linkonce_odr hidden constant'
7 
8 #include <typeinfo>
9 
10 // CHECK-BOTH: _ZTSP1C = [[LINKONCE_VIS_CONSTANT]]
11 // CHECK-BOTH: _ZTS1C = [[LINKONCE_VIS_CONSTANT]]
12 // CHECK-BOTH: _ZTI1C = internal constant
13 // CHECK-BOTH: _ZTIP1C = internal constant
14 // CHECK-BOTH: _ZTSPP1C = [[LINKONCE_VIS_CONSTANT]]
15 // CHECK-BOTH: _ZTIPP1C = internal constant
16 // CHECK-BOTH: _ZTSM1Ci = [[LINKONCE_VIS_CONSTANT]]
17 // CHECK-BOTH: _ZTIM1Ci = internal constant
18 // CHECK-BOTH: _ZTSPM1Ci = [[LINKONCE_VIS_CONSTANT]]
19 // CHECK-BOTH: _ZTIPM1Ci = internal constant
20 // CHECK-BOTH: _ZTSM1CS_ = [[LINKONCE_VIS_CONSTANT]]
21 // CHECK-BOTH: _ZTIM1CS_ = internal constant
22 // CHECK-BOTH: _ZTSM1CPS_ = [[LINKONCE_VIS_CONSTANT]]
23 // CHECK-BOTH: _ZTIM1CPS_ = internal constant
24 // CHECK-BOTH: _ZTSM1A1C = [[LINKONCE_VIS_CONSTANT]]
25 // CHECK-BOTH: _ZTS1A = [[LINKONCE_VIS_CONSTANT]]
26 // CHECK-BOTH: _ZTI1A = [[LINKONCE_VIS_CONSTANT]]
27 // CHECK-BOTH: _ZTIM1A1C = internal constant
28 // CHECK-BOTH: _ZTSM1AP1C = [[LINKONCE_VIS_CONSTANT]]
29 // CHECK-BOTH: _ZTIM1AP1C = internal constant
30 
31 // CHECK-WITH-HIDDEN: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
32 // CHECK-WITH-HIDDEN: @_ZTSPK2T4 = linkonce_odr hidden constant
33 // CHECK-WITH-HIDDEN: @_ZTS2T4 = linkonce_odr hidden constant
34 // CHECK-WITH-HIDDEN: @_ZTI2T4 = linkonce_odr hidden constant
35 // CHECK-WITH-HIDDEN: @_ZTIPK2T4 = linkonce_odr hidden constant
36 // CHECK-WITH-HIDDEN: @_ZTSZ2t5vE1A = internal constant
37 // CHECK-WITH-HIDDEN: @_ZTIZ2t5vE1A = internal constant
38 // CHECK-WITH-HIDDEN: @_ZTSZ2t6vE1A = linkonce_odr hidden constant
39 // CHECK-WITH-HIDDEN: @_ZTIZ2t6vE1A = linkonce_odr hidden constant
40 // CHECK-WITH-HIDDEN: @_ZTSPZ2t7vE1A = linkonce_odr hidden constant
41 // CHECK-WITH-HIDDEN: @_ZTSZ2t7vE1A = linkonce_odr hidden constant
42 // CHECK-WITH-HIDDEN: @_ZTIZ2t7vE1A = linkonce_odr hidden constant
43 // CHECK-WITH-HIDDEN: @_ZTIPZ2t7vE1A = linkonce_odr hidden constant
44 
45 // CHECK: _ZTSN12_GLOBAL__N_11DE = internal constant
46 // CHECK: _ZTIN12_GLOBAL__N_11DE = internal constant
47 // CHECK: _ZTSPN12_GLOBAL__N_11DE = internal constant
48 // CHECK: _ZTIPN12_GLOBAL__N_11DE = internal constant
49 // CHECK: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
50 // CHECK: _ZTIFN12_GLOBAL__N_11DEvE = internal constant
51 // CHECK: _ZTSFvN12_GLOBAL__N_11DEE = internal constant
52 // CHECK: _ZTIFvN12_GLOBAL__N_11DEE = internal constant
53 // CHECK: _ZTSPFvvE = linkonce_odr constant
54 // CHECK: _ZTSFvvE = linkonce_odr constant
55 // CHECK: _ZTIFvvE = linkonce_odr constant
56 // CHECK: _ZTIPFvvE = linkonce_odr constant
57 // CHECK: _ZTSPN12_GLOBAL__N_12DIE = internal constant
58 // CHECK: _ZTSN12_GLOBAL__N_12DIE = internal constant
59 // CHECK: _ZTIN12_GLOBAL__N_12DIE = internal constant
60 // CHECK: _ZTIPN12_GLOBAL__N_12DIE = internal constant
61 // CHECK: _ZTSMN12_GLOBAL__N_12DIEFvvE = internal constant
62 // CHECK: _ZTIMN12_GLOBAL__N_12DIEFvvE = internal constant
63 // CHECK: _ZTSN12_GLOBAL__N_11EE = internal constant
64 // CHECK: _ZTIN12_GLOBAL__N_11EE = internal constant
65 // CHECK: _ZTSA10_i = linkonce_odr constant
66 // CHECK: _ZTIA10_i = linkonce_odr constant
67 // CHECK: _ZTI1TILj0EE = linkonce_odr constant
68 // CHECK: _ZTI1TILj1EE = weak_odr constant
69 // CHECK: _ZTI1TILj2EE = external constant
70 // CHECK: _ZTSZ2t5vE1A = internal constant
71 // CHECK: _ZTIZ2t5vE1A = internal constant
72 // CHECK: _ZTS1B = constant
73 // CHECK: _ZTI1B = constant
74 // CHECK: _ZTS1F = linkonce_odr constant
75 // CHECK: _ZTSZ2t6vE1A = linkonce_odr constant
76 // CHECK: _ZTIZ2t6vE1A = linkonce_odr constant
77 // CHECK: _ZTSPZ2t7vE1A = linkonce_odr constant
78 // CHECK: _ZTSZ2t7vE1A = linkonce_odr constant
79 // CHECK: _ZTIZ2t7vE1A = linkonce_odr constant
80 // CHECK: _ZTIPZ2t7vE1A = linkonce_odr constant
81 
82 // CHECK: _ZTIN12_GLOBAL__N_11DE to
83 
84 // A has no key function, so its RTTI data should be linkonce_odr.
85 struct A { };
86 
87 // B has a key function defined in the translation unit, so the RTTI data should
88 // be emitted in this translation unit and have external linkage.
89 struct B : A {
90   virtual void f();
91 };
92 void B::f() { }
93 
94 // C is an incomplete class type, so any direct or indirect pointer types should have
95 // internal linkage, as should the type info for C itself.
96 struct C;
97 
98 void t1() {
99   (void)typeid(C*);
100   (void)typeid(C**);
101   (void)typeid(int C::*);
102   (void)typeid(int C::**);
103   (void)typeid(C C::*);
104   (void)typeid(C *C::*);
105   (void)typeid(C A::*);
106   (void)typeid(C* A::*);
107 }
108 
109 namespace {
110 // D and DI are inside an anonymous namespace, so all type information related
111 // to both should have internal linkage.
112 struct D {};
113 struct DI;
114 
115 // E is also inside an anonymous namespace.
116 enum E {};
117 
118 };
119 
120 // F has a key function defined in the translation unit, but it is inline so the RTTI
121 // data should be emitted with linkonce_odr linkage.
122 struct F {
123   virtual void f();
124 };
125 
126 inline void F::f() { }
127 const D getD();
128 
129 const std::type_info &t2() {
130   (void)typeid(const D);
131   (void)typeid(D *);
132   (void)typeid(D (*)());
133   (void)typeid(void (*)(D));
134   (void)typeid(void (*)(D&));
135   // The exception specification is not part of the RTTI descriptor, so it should not have
136   // internal linkage.
137   (void)typeid(void (*)() throw (D));
138 
139   (void)typeid(DI *);
140   (void)typeid(void (DI::*)());
141 
142   (void)typeid(E);
143 
144   return typeid(getD());
145 }
146 
147 namespace Arrays {
148   struct A {
149     static const int a[10];
150   };
151   const std::type_info &f() {
152     return typeid(A::a);
153   }
154 }
155 
156 template <unsigned N> class T {
157   virtual void anchor() {}
158 };
159 template class T<1>;
160 template <> class T<2> { virtual void anchor(); };
161 void t3() {
162   (void) typeid(T<0>);
163   (void) typeid(T<1>);
164   (void) typeid(T<2>);
165 }
166 
167 // rdar://problem/8778973
168 struct T4 {};
169 void t4(const T4 *ptr) {
170   const void *value = &typeid(ptr);
171 }
172 
173 // rdar://16265084
174 void t5() {
175   struct A {};
176   const void *value = &typeid(A);
177 }
178 
179 inline void t6() {
180   struct A {};
181   const void *value = &typeid(A);
182 }
183 void t6_helper() {
184   t6();
185 }
186 
187 inline void t7() {
188   struct A {};
189   const void *value = &typeid(A*);
190 }
191 void t7_helper() {
192   t7();
193 }
194