1// RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-macosx10.7.0 -emit-llvm -o - %s | FileCheck %s
2
3// CHECK: @_ZZNK7PR12917IJiiEE1nMUlvE_clEvE1n = linkonce_odr global i32 0
4// CHECK: @_ZZN7PR12917IJicdEEC1EicdEd_N1nE = linkonce_odr global i32 0
5// CHECK: @_ZZN7PR12917IJicdEEC1EicdEd0_N1nE = linkonce_odr global i32 0
6// CHECK: @_ZZN7PR12917IJicdEEC1EicdEd1_N1nE = linkonce_odr global i32 0
7
8// CHECK: define linkonce_odr void @_Z11inline_funci
9inline 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
30void call_inline_func() {
31  inline_func(17);
32}
33
34struct S {
35  void f(int = []{return 1;}()
36             + []{return 2;}(),
37         int = []{return 3;}());
38  void g(int, int);
39};
40
41void S::g(int i = []{return 1;}(),
42          int j = []{return 2; }()) {}
43
44// CHECK: define void @_Z6test_S1S
45void 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: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE_clEv
67// CHECK: ret i32 1
68// CHECK: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE0_clEv
69// CHECK: ret i32 2
70// CHECK: define linkonce_odr i32 @_ZZN1S1fEiiEd_NKUlvE_clEv
71// CHECK: ret i32 3
72// CHECK: define internal i32 @"_ZNK1S3$_0clEv"
73// CHECK: ret i32 1
74// CHECK: define internal i32 @"_ZNK1S3$_1clEv"
75// CHECK: ret i32 2
76
77template<typename T>
78struct ST {
79  void f(T = []{return T() + 1;}()
80           + []{return T() + 2;}(),
81         T = []{return T(3);}());
82};
83
84// CHECK: define void @_Z7test_ST2STIdE
85void 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: define linkonce_odr double @_ZZN2STIdE1fEddEd0_NKUlvE_clEv
98// CHECK: ret double 1
99// CHECK: define linkonce_odr double @_ZZN2STIdE1fEddEd0_NKUlvE0_clEv
100// CHECK: ret double 2
101// CHECK: define linkonce_odr double @_ZZN2STIdE1fEddEd_NKUlvE_clEv
102// CHECK: ret double 3
103
104template<typename T>
105struct StaticMembers {
106  static T x;
107  static T y;
108  static T z;
109};
110
111template<typename T> int accept_lambda(T);
112
113template<typename T>
114T StaticMembers<T>::x = []{return 1;}() + []{return 2;}();
115
116template<typename T>
117T StaticMembers<T>::y = []{return 3;}();
118
119template<typename T>
120T StaticMembers<T>::z = accept_lambda([]{return 4;});
121
122// CHECK: define internal void @__cxx_global_var_init()
123// CHECK: call i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
124// CHECK-NEXT: call i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
125// CHECK-NEXT: add nsw
126// CHECK: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
127// CHECK: ret i32 1
128// CHECK: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
129// CHECK: ret i32 2
130template float StaticMembers<float>::x;
131
132// CHECK: define internal void @__cxx_global_var_init1()
133// CHECK: call i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
134// CHECK: define linkonce_odr i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
135// CHECK: ret i32 3
136template float StaticMembers<float>::y;
137
138// CHECK: define internal void @__cxx_global_var_init2()
139// CHECK: call i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_
140// CHECK: declare i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_()
141template float StaticMembers<float>::z;
142
143// CHECK: define internal void @__cxx_global_var_init3
144// CHECK: call i32 @"_ZNK13StaticMembersIdE3$_2clEv"
145// CHECK: define internal i32 @"_ZNK13StaticMembersIdE3$_2clEv"
146// CHECK: ret i32 42
147template<> double StaticMembers<double>::z = []{return 42; }();
148
149template<typename T>
150void func_template(T = []{ return T(); }());
151
152// CHECK: define void @_Z17use_func_templatev()
153void use_func_template() {
154  // CHECK: call i32 @"_ZZ13func_templateIiEvT_ENKS_IiE3$_3clEv"
155  func_template<int>();
156}
157
158
159template<typename...T> struct PR12917 {
160  PR12917(T ...t = []{ static int n = 0; return ++n; }());
161
162  static int n[3];
163};
164template<typename...T> int PR12917<T...>::n[3] = {
165  []{ static int n = 0; return ++n; }()
166};
167
168// CHECK: call i32 @_ZZN7PR12917IJicdEEC1EicdEd1_NKUlvE_clEv(
169// CHECK: call i32 @_ZZN7PR12917IJicdEEC1EicdEd0_NKUlvE_clEv(
170// CHECK: call i32 @_ZZN7PR12917IJicdEEC1EicdEd_NKUlvE_clEv(
171// CHECK: call void @_ZN7PR12917IJicdEEC1Eicd(
172PR12917<int, char, double> pr12917;
173int *pr12917_p = PR12917<int, int>::n;
174
175
176// CHECK: define linkonce_odr void @_Z1fIZZNK23TestNestedInstantiationclEvENKUlvE_clEvEUlvE_EvT_
177
178struct Members {
179  int x = [] { return 1; }() + [] { return 2; }();
180  int y = [] { return 3; }();
181};
182
183void test_Members() {
184  // CHECK: define linkonce_odr void @_ZN7MembersC2Ev
185  // CHECK: call i32 @_ZNK7Members1xMUlvE_clEv
186  // CHECK-NEXT: call i32 @_ZNK7Members1xMUlvE0_clE
187  // CHECK-NEXT: add nsw i32
188  // CHECK: call i32 @_ZNK7Members1yMUlvE_clEv
189  Members members;
190  // CHECK: ret void
191}
192
193template<typename P> void f(P) { }
194
195struct TestNestedInstantiation {
196   void operator()() const {
197     []() -> void {
198       return f([]{});
199     }();
200   }
201};
202
203void test_NestedInstantiation() {
204  TestNestedInstantiation()();
205}
206
207// Check the linkage of the lambdas used in test_Members.
208// CHECK: define linkonce_odr i32 @_ZNK7Members1xMUlvE_clEv
209// CHECK: ret i32 1
210// CHECK: define linkonce_odr i32 @_ZNK7Members1xMUlvE0_clEv
211// CHECK: ret i32 2
212// CHECK: define linkonce_odr i32 @_ZNK7Members1yMUlvE_clEv
213// CHECK: ret i32 3
214
215// Check linkage of the various lambdas.
216// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE_clEv
217// CHECK: ret i32 1
218// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE0_clEv
219// CHECK: ret i32
220// CHECK: define linkonce_odr double @_ZZ11inline_funciENKUlvE1_clEv
221// CHECK: ret double
222// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUliE_clEi
223// CHECK: ret i32
224// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE2_clEv
225// CHECK: ret i32 17
226