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1  // RUN: %clang_cc1 %s -std=c++1y -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
2  // CHECK: ; ModuleID
3  
4  extern "C" int foo();
5  
6  template<typename T> struct A { static int a; };
7  template<typename T> int A<T>::a = foo();
8  
9  // CHECK-NOT: @_ZN1AIcE1aE
10  template<> int A<char>::a;
11  
12  // CHECK: @_ZN1AIbE1aE = global i32 10
13  template<> int A<bool>::a = 10;
14  
15  // CHECK: @llvm.global_ctors = appending global [7 x { i32, void ()*, i8* }]
16  // CHECK: [{ i32, void ()*, i8* } { i32 65535, void ()* @[[unordered1:[^,]*]], i8* bitcast (i32* @_ZN1AIsE1aE to i8*) },
17  // CHECK:  { i32, void ()*, i8* } { i32 65535, void ()* @[[unordered2:[^,]*]], i8* bitcast (i16* @_Z1xIsE to i8*) },
18  // CHECK:  { i32, void ()*, i8* } { i32 65535, void ()* @[[unordered3:[^,]*]], i8* bitcast (i32* @_ZN2ns1aIiE1iE to i8*) },
19  // CHECK:  { i32, void ()*, i8* } { i32 65535, void ()* @[[unordered4:[^,]*]], i8* bitcast (i32* @_ZN2ns1b1iIiEE to i8*) },
20  // CHECK:  { i32, void ()*, i8* } { i32 65535, void ()* @[[unordered5:[^,]*]], i8* bitcast (i32* @_ZN1AIvE1aE to i8*) },
21  // CHECK:  { i32, void ()*, i8* } { i32 65535, void ()* @[[unordered6:[^,]*]], i8* @_Z1xIcE },
22  // CHECK:  { i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_static_member_variable_explicit_specialization.cpp, i8* null }]
23  
24  template int A<short>::a;  // Unordered
25  int b = foo();
26  int c = foo();
27  int d = A<void>::a; // Unordered
28  
29  // An explicit specialization is ordered, and goes in __GLOBAL_sub_I_static_member_variable_explicit_specialization.cpp.
30  template<> struct A<int> { static int a; };
31  int A<int>::a = foo();
32  
33  template<typename T> struct S { static T x; static T y; };
34  template<> int S<int>::x = foo();
35  template<> int S<int>::y = S<int>::x;
36  
37  template<typename T> T x = foo();
38  template short x<short>;  // Unordered
39  template<> int x<int> = foo();
40  int e = x<char>; // Unordered
41  
42  namespace ns {
43  template <typename T> struct a {
44    static int i;
45  };
46  template<typename T> int a<T>::i = foo();
47  template struct a<int>;
48  
49  struct b {
50    template <typename T> static T i;
51  };
52  template<typename T> T b::i = foo();
53  template int b::i<int>;
54  }
55  // CHECK: define internal void @[[unordered1]]
56  // CHECK: call i32 @foo()
57  // CHECK: store {{.*}} @_ZN1AIsE1aE
58  // CHECK: ret
59  
60  // CHECK: define internal void @[[unordered2]]
61  // CHECK: call i32 @foo()
62  // CHECK: store {{.*}} @_Z1xIsE
63  // CHECK: ret
64  
65  // CHECK: define internal void @[[unordered3]]
66  // CHECK: call i32 @foo()
67  // CHECK: store {{.*}} @_ZN2ns1aIiE1iE
68  // CHECK: ret
69  
70  // CHECK: define internal void @[[unordered4]]
71  // CHECK: call i32 @foo()
72  // CHECK: store {{.*}} @_ZN2ns1b1iIiEE
73  // CHECK: ret
74  
75  // CHECK: define internal void @[[unordered5]]
76  // CHECK: call i32 @foo()
77  // CHECK: store {{.*}} @_ZN1AIvE1aE
78  // CHECK: ret
79  
80  // CHECK: define internal void @[[unordered6]]
81  // CHECK: call i32 @foo()
82  // CHECK: store {{.*}} @_Z1xIcE
83  // CHECK: ret
84  
85  // CHECK: define internal void @_GLOBAL__sub_I_static_member_variable_explicit_specialization.cpp()
86  //   We call unique stubs for every ordered dynamic initializer in the TU.
87  // CHECK: call
88  // CHECK: call
89  // CHECK: call
90  // CHECK: call
91  // CHECK: call
92  // CHECK: call
93  // CHECK: call
94  // CHECK: call
95  // CHECK-NOT: call
96  // CHECK: ret
97