p9-linkage.cpp revision 3bf48ca9c9f924073cab503799891f539d041d12 
1// RUN: %clang_cc1 -triple x86_64-apple-darwin -O1 -disable-llvm-optzns -emit-llvm -std=c++11 -o - %s | FileCheck %s
2
3template<typename T>
4struct X0 {
5  void f(T &t) {
6    t = 0;
7  }
8
9  void g(T &t);
10
11  void h(T &t);
12
13  static T static_var;
14};
15
16template<typename T>
17inline void X0<T>::g(T & t) {
18  t = 0;
19}
20
21template<typename T>
22void X0<T>::h(T & t) {
23  t = 0;
24}
25
26template<typename T>
27T X0<T>::static_var = 0;
28
29extern template struct X0<int*>;
30
31int *&test(X0<int*> xi, int *ip) {
32  // CHECK: define available_externally void @_ZN2X0IPiE1fERS0_
33  xi.f(ip);
34  // CHECK: define available_externally void @_ZN2X0IPiE1gERS0_
35  xi.g(ip);
36  // CHECK: declare void @_ZN2X0IPiE1hERS0_
37  xi.h(ip);
38  return X0<int*>::static_var;
39}
40
41template<typename T>
42void f0(T& t) {
43  t = 0;
44}
45
46template<typename T>
47inline void f1(T& t) {
48  t = 0;
49}
50
51extern template void f0<>(int *&);
52extern template void f1<>(int *&);
53
54void test_f0(int *ip, float *fp) {
55  // CHECK: declare void @_Z2f0IPiEvRT_
56  f0(ip);
57  // CHECK: define linkonce_odr void @_Z2f0IPfEvRT_
58  f0(fp);
59}
60
61void test_f1(int *ip, float *fp) {
62  // CHECK: define available_externally void @_Z2f1IPiEvRT_
63  f1(ip);
64  // CHECK: define linkonce_odr void @_Z2f1IPfEvRT_
65  f1(fp);
66}
67