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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