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: @_ZTSPZ2t7vE1A = linkonce_odr hidden constant
37// CHECK-WITH-HIDDEN: @_ZTSZ2t7vE1A = linkonce_odr hidden constant
38// CHECK-WITH-HIDDEN: @_ZTIZ2t7vE1A = linkonce_odr hidden constant
39// CHECK-WITH-HIDDEN: @_ZTIPZ2t7vE1A = linkonce_odr hidden constant
40// CHECK-WITH-HIDDEN: @_ZTSZ2t6vE1A = linkonce_odr hidden constant
41// CHECK-WITH-HIDDEN: @_ZTIZ2t6vE1A = 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: _ZTSPZ2t7vE1A = linkonce_odr constant
68// CHECK: _ZTSZ2t7vE1A = linkonce_odr constant
69// CHECK: _ZTIZ2t7vE1A = linkonce_odr constant
70// CHECK: _ZTIPZ2t7vE1A = linkonce_odr constant
71// CHECK: _ZTSZ2t6vE1A = linkonce_odr constant
72// CHECK: _ZTIZ2t6vE1A = 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.
77struct 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.
81struct B : A {
82  virtual void f();
83};
84void 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.
88struct C;
89
90void 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
101namespace {
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.
113struct F {
114  virtual void f();
115};
116
117inline void F::f() { }
118const D getD();
119
120const 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
135namespace 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
144template <unsigned N> class T {
145  virtual void anchor() {}
146};
147template class T<1>;
148template <> class T<2> { virtual void anchor(); };
149void t3() {
150  (void) typeid(T<0>);
151  (void) typeid(T<1>);
152  (void) typeid(T<2>);
153}
154
155// rdar://problem/8778973
156struct T4 {};
157void t4(const T4 *ptr) {
158  const void *value = &typeid(ptr);
159}
160
161// rdar://16265084
162void t5() {
163  struct A {};
164  const void *value = &typeid(A);
165}
166
167inline void t6() {
168  struct A {};
169  const void *value = &typeid(A);
170}
171void t6_helper() {
172  t6();
173}
174
175inline void t7() {
176  struct A {};
177  const void *value = &typeid(A*);
178}
179void t7_helper() {
180  t7();
181}
182