1 // RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-macosx10.7.0 -emit-llvm -o - %s -w | FileCheck %s
2 
3 // CHECK: @_ZZZN7PR12917IJicdEEC1EicdEd1_NKUlvE_clEvE1n = linkonce_odr global i32 0
4 // CHECK: @_ZZZN7PR12917IJicdEEC1EicdEd0_NKUlvE_clEvE1n = linkonce_odr global i32 0
5 // CHECK: @_ZZZN7PR12917IJicdEEC1EicdEd_NKUlvE_clEvE1n = linkonce_odr global i32 0
6 // CHECK: @_ZZNK7PR12917IJiiEE1nMUlvE_clEvE1n = linkonce_odr global i32 0
7 
8 // CHECK-LABEL: define linkonce_odr void @_Z11inline_funci
9 inline void inline_func(int n) {
10   // CHECK: call i32 @_ZZ11inline_funciENKUlvE_clEv
11   int i = []{ return 1; }();
12 
13   // CHECK: call i32 @_ZZ11inline_funciENKUlvE0_clEv
14   int j = [=] { return n + i; }();
15 
16   // CHECK: call double @_ZZ11inline_funciENKUlvE1_clEv
17   int k = [=] () -> double { return n + i; }();
18 
19   // CHECK: call i32 @_ZZ11inline_funciENKUliE_clEi
20   int l = [=] (int x) -> int { return x + i; }(n);
21 
22   int inner(int i = []{ return 17; }());
23   // CHECK: call i32 @_ZZ11inline_funciENKUlvE2_clEv
24   // CHECK-NEXT: call i32 @_Z5inneri
25   inner();
26 
27   // CHECK-NEXT: ret void
28 }
29 
30 void call_inline_func() {
31   inline_func(17);
32 }
33 
34 struct S {
35   void f(int = []{return 1;}()
36              + []{return 2;}(),
37          int = []{return 3;}());
38   void g(int, int);
39 };
40 
41 void S::g(int i = []{return 1;}(),
42           int j = []{return 2; }()) {}
43 
44 // CHECK-LABEL: define void @_Z6test_S1S
45 void test_S(S s) {
46   // CHECK: call i32 @_ZZN1S1fEiiEd0_NKUlvE_clEv
47   // CHECK-NEXT: call i32 @_ZZN1S1fEiiEd0_NKUlvE0_clEv
48   // CHECK-NEXT: add nsw i32
49   // CHECK-NEXT: call i32 @_ZZN1S1fEiiEd_NKUlvE_clEv
50   // CHECK-NEXT: call void @_ZN1S1fEii
51   s.f();
52 
53   // NOTE: These manglings don't actually matter that much, because
54   // the lambdas in the default arguments of g() won't be seen by
55   // multiple translation units. We check them mainly to ensure that they don't
56   // get the special mangling for lambdas in in-class default arguments.
57   // CHECK: call i32 @"_ZNK1S3$_0clEv"
58   // CHECK-NEXT: call i32 @"_ZNK1S3$_1clEv"
59   // CHECK-NEXT: call void @_ZN1S1gEi
60   s.g();
61 
62   // CHECK-NEXT: ret void
63 }
64 
65 // Check the linkage of the lambda call operators used in test_S.
66 // CHECK-LABEL: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE_clEv
67 // CHECK: ret i32 1
68 // CHECK-LABEL: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE0_clEv
69 // CHECK: ret i32 2
70 // CHECK-LABEL: define linkonce_odr i32 @_ZZN1S1fEiiEd_NKUlvE_clEv
71 // CHECK: ret i32 3
72 // CHECK-LABEL: define internal i32 @"_ZNK1S3$_0clEv"
73 // CHECK: ret i32 1
74 // CHECK-LABEL: define internal i32 @"_ZNK1S3$_1clEv"
75 // CHECK: ret i32 2
76 
77 template<typename T>
78 struct ST {
79   void f(T = []{return T() + 1;}()
80            + []{return T() + 2;}(),
81          T = []{return T(3);}());
82 };
83 
84 // CHECK-LABEL: define void @_Z7test_ST2STIdE
85 void test_ST(ST<double> st) {
86   // CHECK: call double @_ZZN2STIdE1fEddEd0_NKUlvE_clEv
87   // CHECK-NEXT: call double @_ZZN2STIdE1fEddEd0_NKUlvE0_clEv
88   // CHECK-NEXT: fadd double
89   // CHECK-NEXT: call double @_ZZN2STIdE1fEddEd_NKUlvE_clEv
90   // CHECK-NEXT: call void @_ZN2STIdE1fEdd
91   st.f();
92 
93   // CHECK-NEXT: ret void
94 }
95 
96 // Check the linkage of the lambda call operators used in test_ST.
97 // CHECK-LABEL: define linkonce_odr double @_ZZN2STIdE1fEddEd0_NKUlvE_clEv
98 // CHECK: ret double 1
99 // CHECK-LABEL: define linkonce_odr double @_ZZN2STIdE1fEddEd0_NKUlvE0_clEv
100 // CHECK: ret double 2
101 // CHECK-LABEL: define linkonce_odr double @_ZZN2STIdE1fEddEd_NKUlvE_clEv
102 // CHECK: ret double 3
103 
104 template<typename T>
105 struct StaticMembers {
106   static T x;
107   static T y;
108   static T z;
109   static int (*f)();
110 };
111 
112 template<typename T> int accept_lambda(T);
113 
114 template<typename T>
115 T StaticMembers<T>::x = []{return 1;}() + []{return 2;}();
116 
117 template<typename T>
118 T StaticMembers<T>::y = []{return 3;}();
119 
120 template<typename T>
121 T StaticMembers<T>::z = accept_lambda([]{return 4;});
122 
123 template<typename T>
124 int (*StaticMembers<T>::f)() = []{return 5;};
125 
126 // CHECK-LABEL: define internal void @__cxx_global_var_init()
127 // CHECK: call i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
128 // CHECK-NEXT: call i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
129 // CHECK-NEXT: add nsw
130 // CHECK-LABEL: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
131 // CHECK: ret i32 1
132 // CHECK-LABEL: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
133 // CHECK: ret i32 2
134 template float StaticMembers<float>::x;
135 
136 // CHECK-LABEL: define internal void @__cxx_global_var_init1()
137 // CHECK: call i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
138 // CHECK-LABEL: define linkonce_odr i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
139 // CHECK: ret i32 3
140 template float StaticMembers<float>::y;
141 
142 // CHECK-LABEL: define internal void @__cxx_global_var_init2()
143 // CHECK: call i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_
144 // CHECK: declare i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_()
145 template float StaticMembers<float>::z;
146 
147 // CHECK-LABEL: define internal void @__cxx_global_var_init3()
148 // CHECK: call {{.*}} @_ZNK13StaticMembersIfE1fMUlvE_cvPFivEEv
149 // CHECK-LABEL: define linkonce_odr i32 ()* @_ZNK13StaticMembersIfE1fMUlvE_cvPFivEEv
150 template int (*StaticMembers<float>::f)();
151 
152 // CHECK-LABEL: define internal void @__cxx_global_var_init4
153 // CHECK: call i32 @"_ZNK13StaticMembersIdE3$_2clEv"
154 // CHECK-LABEL: define internal i32 @"_ZNK13StaticMembersIdE3$_2clEv"
155 // CHECK: ret i32 42
156 template<> double StaticMembers<double>::z = []{return 42; }();
157 
158 template<typename T>
159 void func_template(T = []{ return T(); }());
160 
161 // CHECK-LABEL: define void @_Z17use_func_templatev()
162 void use_func_template() {
163   // CHECK: call i32 @"_ZZ13func_templateIiEvT_ENK3$_3clEv"
164   func_template<int>();
165 }
166 
167 
168 template<typename...T> struct PR12917 {
169   PR12917(T ...t = []{ static int n = 0; return ++n; }());
170 
171   static int n[3];
172 };
173 template<typename...T> int PR12917<T...>::n[3] = {
174   []{ static int n = 0; return ++n; }()
175 };
176 
177 // CHECK: call i32 @_ZZN7PR12917IJicdEEC1EicdEd1_NKUlvE_clEv(
178 // CHECK: call i32 @_ZZN7PR12917IJicdEEC1EicdEd0_NKUlvE_clEv(
179 // CHECK: call i32 @_ZZN7PR12917IJicdEEC1EicdEd_NKUlvE_clEv(
180 // CHECK: call void @_ZN7PR12917IJicdEEC1Eicd(
181 PR12917<int, char, double> pr12917;
182 int *pr12917_p = PR12917<int, int>::n;
183 
184 namespace std {
185   struct type_info;
186 }
187 namespace PR12123 {
188   struct A { virtual ~A(); } g;
189   struct B {
190     void f(const std::type_info& x = typeid([]()->A& { return g; }()));
191     void h();
192   };
193   void B::h() { f(); }
194 }
195 
196 // CHECK-LABEL: define linkonce_odr dereferenceable({{[0-9]+}}) %"struct.PR12123::A"* @_ZZN7PR121231B1fERKSt9type_infoEd_NKUlvE_clEv
197 
198 // Check linkage of the various lambdas.
199 // CHECK-LABEL: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE_clEv
200 // CHECK: ret i32 1
201 // CHECK-LABEL: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE0_clEv
202 // CHECK: ret i32
203 // CHECK-LABEL: define linkonce_odr double @_ZZ11inline_funciENKUlvE1_clEv
204 // CHECK: ret double
205 // CHECK-LABEL: define linkonce_odr i32 @_ZZ11inline_funciENKUliE_clEi
206 // CHECK: ret i32
207 // CHECK-LABEL: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE2_clEv
208 // CHECK: ret i32 17
209 
210 // CHECK-LABEL: define linkonce_odr void @_ZN7MembersC2Ev
211 // CHECK: call i32 @_ZNK7Members1xMUlvE_clEv
212 // CHECK-NEXT: call i32 @_ZNK7Members1xMUlvE0_clE
213 // CHECK-NEXT: add nsw i32
214 // CHECK: call i32 @_ZNK7Members1yMUlvE_clEv
215 // CHECK: ret void
216 
217 
218 // Check the linkage of the lambdas used in test_Members.
219 // CHECK-LABEL: define linkonce_odr i32 @_ZNK7Members1xMUlvE_clEv
220 // CHECK: ret i32 1
221 // CHECK-LABEL: define linkonce_odr i32 @_ZNK7Members1xMUlvE0_clEv
222 // CHECK: ret i32 2
223 // CHECK-LABEL: define linkonce_odr i32 @_ZNK7Members1yMUlvE_clEv
224 // CHECK: ret i32 3
225 
226 // CHECK-LABEL: define linkonce_odr void @_Z1fIZZNK23TestNestedInstantiationclEvENKUlvE_clEvEUlvE_EvT_
227 
228 
229 namespace PR12808 {
230   template <typename> struct B {
231     int a;
232     template <typename L> constexpr B(L&& x) : a(x()) { }
233   };
234   template <typename> void b(int) {
235     [&]{ (void)B<int>([&]{ return 1; }); }();
236   }
237   void f() {
238     b<int>(1);
239   }
240   // CHECK-LABEL: define linkonce_odr void @_ZZN7PR128081bIiEEviENKUlvE_clEv
241   // CHECK-LABEL: define linkonce_odr i32 @_ZZZN7PR128081bIiEEviENKUlvE_clEvENKUlvE_clEv
242 }
243 
244 
245 struct Members {
246   int x = [] { return 1; }() + [] { return 2; }();
247   int y = [] { return 3; }();
248 };
249 
250 void test_Members() {
251   Members members;
252 }
253 
254 template<typename P> void f(P) { }
255 
256 struct TestNestedInstantiation {
257    void operator()() const {
258      []() -> void {
259        return f([]{});
260      }();
261    }
262 };
263 
264 void test_NestedInstantiation() {
265   TestNestedInstantiation()();
266 }
267