1 // RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-macosx10.7.0 -emit-llvm -o - %s -w | FileCheck %s
2
3 // CHECK-LABEL: define linkonce_odr void @_Z11inline_funci
inline_func(int n)4 inline void inline_func(int n) {
5 // CHECK: call i32 @_ZZ11inline_funciENKUlvE_clEv
6 int i = []{ return 1; }();
7
8 // CHECK: call i32 @_ZZ11inline_funciENKUlvE0_clEv
9 int j = [=] { return n + i; }();
10
11 // CHECK: call double @_ZZ11inline_funciENKUlvE1_clEv
12 int k = [=] () -> double { return n + i; }();
13
14 // CHECK: call i32 @_ZZ11inline_funciENKUliE_clEi
15 int l = [=] (int x) -> int { return x + i; }(n);
16
17 int inner(int i = []{ return 17; }());
18 // CHECK: call i32 @_ZZ11inline_funciENKUlvE2_clEv
19 // CHECK-NEXT: call i32 @_Z5inneri
20 inner();
21
22 // CHECK-NEXT: ret void
23 }
24
call_inline_func()25 void call_inline_func() {
26 inline_func(17);
27 }
28
29 // CHECK-LABEL: define linkonce_odr i32* @_ZNK10inline_varMUlvE_clEv(
30 // CHECK: @_ZZNK10inline_varMUlvE_clEvE1n
__anoncee81ebf0602null31 inline auto inline_var = [] {
32 static int n = 5;
33 return &n;
34 };
35
36 int *use_inline_var = inline_var();
37
38 // CHECK-LABEL: define linkonce_odr i32* @_ZNK12var_templateIiEMUlvE_clEv(
39 // CHECK: @_ZZNK12var_templateIiEMUlvE_clEvE1n
__anoncee81ebf0702null40 template<typename T> auto var_template = [] {
41 static int n = 9;
42 return &n;
43 };
44
45 int *use_var_template = var_template<int>();
46
47 struct S {
__anoncee81ebf0802S48 void f(int = []{return 1;}()
__anoncee81ebf0902S49 + []{return 2;}(),
__anoncee81ebf0a02S50 int = []{return 3;}());
51 void g(int, int);
52 };
53
__anoncee81ebf0b02null54 void S::g(int i = []{return 1;}(),
__anoncee81ebf0c02null55 int j = []{return 2; }()) {}
56
57 // CHECK-LABEL: define void @_Z6test_S1S
test_S(S s)58 void test_S(S s) {
59 // CHECK: call i32 @_ZZN1S1fEiiEd0_NKUlvE_clEv
60 // CHECK-NEXT: call i32 @_ZZN1S1fEiiEd0_NKUlvE0_clEv
61 // CHECK-NEXT: add nsw i32
62 // CHECK-NEXT: call i32 @_ZZN1S1fEiiEd_NKUlvE_clEv
63 // CHECK-NEXT: call void @_ZN1S1fEii
64 s.f();
65
66 // NOTE: These manglings don't actually matter that much, because
67 // the lambdas in the default arguments of g() won't be seen by
68 // multiple translation units. We check them mainly to ensure that they don't
69 // get the special mangling for lambdas in in-class default arguments.
70 // CHECK: call i32 @"_ZNK1S3$_0clEv"
71 // CHECK-NEXT: call i32 @"_ZNK1S3$_1clEv"
72 // CHECK-NEXT: call void @_ZN1S1gEi
73 s.g();
74
75 // CHECK-NEXT: ret void
76 }
77
78 // Check the linkage of the lambda call operators used in test_S.
79 // CHECK-LABEL: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE_clEv
80 // CHECK: ret i32 1
81 // CHECK-LABEL: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE0_clEv
82 // CHECK: ret i32 2
83 // CHECK-LABEL: define linkonce_odr i32 @_ZZN1S1fEiiEd_NKUlvE_clEv
84 // CHECK: ret i32 3
85 // CHECK-LABEL: define internal i32 @"_ZNK1S3$_0clEv"
86 // CHECK: ret i32 1
87 // CHECK-LABEL: define internal i32 @"_ZNK1S3$_1clEv"
88 // CHECK: ret i32 2
89
90 template<typename T>
91 struct ST {
__anoncee81ebf0d02ST92 void f(T = []{return T() + 1;}()
__anoncee81ebf0e02ST93 + []{return T() + 2;}(),
__anoncee81ebf0f02ST94 T = []{return T(3);}());
95 };
96
97 // CHECK-LABEL: define void @_Z7test_ST2STIdE
test_ST(ST<double> st)98 void test_ST(ST<double> st) {
99 // CHECK: call double @_ZZN2STIdE1fEddEd0_NKUlvE_clEv
100 // CHECK-NEXT: call double @_ZZN2STIdE1fEddEd0_NKUlvE0_clEv
101 // CHECK-NEXT: fadd double
102 // CHECK-NEXT: call double @_ZZN2STIdE1fEddEd_NKUlvE_clEv
103 // CHECK-NEXT: call void @_ZN2STIdE1fEdd
104 st.f();
105
106 // CHECK-NEXT: ret void
107 }
108
109 // Check the linkage of the lambda call operators used in test_ST.
110 // CHECK-LABEL: define linkonce_odr double @_ZZN2STIdE1fEddEd0_NKUlvE_clEv
111 // CHECK: ret double 1
112 // CHECK-LABEL: define linkonce_odr double @_ZZN2STIdE1fEddEd0_NKUlvE0_clEv
113 // CHECK: ret double 2
114 // CHECK-LABEL: define linkonce_odr double @_ZZN2STIdE1fEddEd_NKUlvE_clEv
115 // CHECK: ret double 3
116
117 template<typename T>
118 struct StaticMembers {
119 static T x;
120 static T y;
121 static T z;
122 static int (*f)();
123 };
124
125 template<typename T> int accept_lambda(T);
126
127 template<typename T>
__anoncee81ebf1102null128 T StaticMembers<T>::x = []{return 1;}() + []{return 2;}();
129
130 template<typename T>
__anoncee81ebf1202null131 T StaticMembers<T>::y = []{return 3;}();
132
133 template<typename T>
__anoncee81ebf1302null134 T StaticMembers<T>::z = accept_lambda([]{return 4;});
135
136 template<typename T>
__anoncee81ebf1402null137 int (*StaticMembers<T>::f)() = []{return 5;};
138
139 // CHECK-LABEL: define internal void @__cxx_global_var_init
140 // CHECK: call i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
141 // CHECK-NEXT: call i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
142 // CHECK-NEXT: add nsw
143 // CHECK-LABEL: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
144 // CHECK: ret i32 1
145 // CHECK-LABEL: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
146 // CHECK: ret i32 2
147 template float StaticMembers<float>::x;
148
149 // CHECK-LABEL: define internal void @__cxx_global_var_init
150 // CHECK: call i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
151 // CHECK-LABEL: define linkonce_odr i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
152 // CHECK: ret i32 3
153 template float StaticMembers<float>::y;
154
155 // CHECK-LABEL: define internal void @__cxx_global_var_init
156 // CHECK: call i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_
157 // CHECK: declare i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_()
158 template float StaticMembers<float>::z;
159
160 // CHECK-LABEL: define internal void @__cxx_global_var_init
161 // CHECK: call {{.*}} @_ZNK13StaticMembersIfE1fMUlvE_cvPFivEEv
162 // CHECK-LABEL: define linkonce_odr i32 ()* @_ZNK13StaticMembersIfE1fMUlvE_cvPFivEEv
163 template int (*StaticMembers<float>::f)();
164
165 // CHECK-LABEL: define internal void @__cxx_global_var_init
166 // CHECK: call i32 @"_ZNK13StaticMembersIdE3$_2clEv"
167 // CHECK-LABEL: define internal i32 @"_ZNK13StaticMembersIdE3$_2clEv"
168 // CHECK: ret i32 42
__anoncee81ebf1502null169 template<> double StaticMembers<double>::z = []{return 42; }();
170
171 template<typename T>
__anoncee81ebf1602null172 void func_template(T = []{ return T(); }());
173
174 // CHECK-LABEL: define void @_Z17use_func_templatev()
use_func_template()175 void use_func_template() {
176 // CHECK: call i32 @"_ZZ13func_templateIiEvT_ENK3$_3clEv"
177 func_template<int>();
178 }
179
180 namespace std {
181 struct type_info {
182 bool before(const type_info &) const noexcept;
183 };
184 }
185 namespace PR12123 {
186 struct A { virtual ~A(); } g;
187 struct C { virtual ~C(); } k;
188 struct B {
__anoncee81ebf1702PR12123::B189 void f(const std::type_info& x = typeid([]()->A& { return g; }()));
190 void h();
__anoncee81ebf1802PR12123::B191 void j(bool cond = typeid([]() -> A & { return g; }()).before(typeid([]() -> C & { return k; }())));
192 };
h()193 void B::h() { f(); j(); }
194 }
195
196 // CHECK-LABEL: define linkonce_odr dereferenceable({{[0-9]+}}) %"struct.PR12123::A"* @_ZZN7PR121231B1fERKSt9type_infoEd_NKUlvE_clEv
197 // CHECK-LABEL: define linkonce_odr dereferenceable({{[0-9]+}}) %"struct.PR12123::A"* @_ZZN7PR121231B1jEbEd_NKUlvE_clEv
198 // CHECK-LABEL: define linkonce_odr dereferenceable({{[0-9]+}}) %"struct.PR12123::C"* @_ZZN7PR121231B1jEbEd_NKUlvE0_clEv
199
200 // CHECK-LABEL: define {{.*}} @_Z{{[0-9]*}}testVarargsLambdaNumberingv(
testVarargsLambdaNumbering()201 inline int testVarargsLambdaNumbering() {
202 // CHECK: testVarargsLambdaNumberingvE{{.*}}UlzE_
203 auto a = [](...) { static int n; return ++n; };
204 // CHECK: testVarargsLambdaNumberingvE{{.*}}UlvE_
205 auto b = []() { static int n; return ++n; };
206 return a() + b();
207 }
208 int k = testVarargsLambdaNumbering();
209
210 // Check linkage of the various lambdas.
211 // CHECK-LABEL: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE_clEv
212 // CHECK: ret i32 1
213 // CHECK-LABEL: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE0_clEv
214 // CHECK: ret i32
215 // CHECK-LABEL: define linkonce_odr double @_ZZ11inline_funciENKUlvE1_clEv
216 // CHECK: ret double
217 // CHECK-LABEL: define linkonce_odr i32 @_ZZ11inline_funciENKUliE_clEi
218 // CHECK: ret i32
219 // CHECK-LABEL: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE2_clEv
220 // CHECK: ret i32 17
221
222 // CHECK-LABEL: define linkonce_odr void @_ZN7MembersC2Ev
223 // CHECK: call i32 @_ZNK7Members1xMUlvE_clEv
224 // CHECK-NEXT: call i32 @_ZNK7Members1xMUlvE0_clE
225 // CHECK-NEXT: add nsw i32
226 // CHECK: call i32 @_ZNK7Members1yMUlvE_clEv
227 // CHECK: ret void
228
229
230 // Check the linkage of the lambdas used in test_Members.
231 // CHECK-LABEL: define linkonce_odr i32 @_ZNK7Members1xMUlvE_clEv
232 // CHECK: ret i32 1
233 // CHECK-LABEL: define linkonce_odr i32 @_ZNK7Members1xMUlvE0_clEv
234 // CHECK: ret i32 2
235 // CHECK-LABEL: define linkonce_odr i32 @_ZNK7Members1yMUlvE_clEv
236 // CHECK: ret i32 3
237
238 // CHECK-LABEL: define linkonce_odr void @_Z1fIZZNK23TestNestedInstantiationclEvENKUlvE_clEvEUlvE_EvT_
239
240
241 namespace PR12808 {
242 template <typename> struct B {
243 int a;
BPR12808::B244 template <typename L> constexpr B(L&& x) : a(x()) { }
245 };
b(int)246 template <typename> void b(int) {
247 [&]{ (void)B<int>([&]{ return 1; }); }();
248 }
f()249 void f() {
250 b<int>(1);
251 }
252 // CHECK-LABEL: define linkonce_odr void @_ZZN7PR128081bIiEEviENKUlvE_clEv
253 // CHECK-LABEL: define linkonce_odr i32 @_ZZZN7PR128081bIiEEviENKUlvE_clEvENKUlvE_clEv
254 }
255
256
257 struct Members {
__anoncee81ebf1e02Members258 int x = [] { return 1; }() + [] { return 2; }();
__anoncee81ebf2002Members259 int y = [] { return 3; }();
260 };
261
test_Members()262 void test_Members() {
263 Members members;
264 }
265
f(P)266 template<typename P> void f(P) { }
267
268 struct TestNestedInstantiation {
operator ()TestNestedInstantiation269 void operator()() const {
270 []() -> void {
271 return f([]{});
272 }();
273 }
274 };
275
test_NestedInstantiation()276 void test_NestedInstantiation() {
277 TestNestedInstantiation()();
278 }
279