1 // RUN: %clang_cc1 -verify -Wno-return-type -Wno-main -std=c++11 -emit-llvm -triple %itanium_abi_triple -o - %s | FileCheck %s
2 // expected-no-diagnostics
3
4 namespace test1 {
5 int x;
6 template <int& D> class T { };
7 // CHECK: void @_ZN5test12f0ENS_1TIL_ZNS_1xEEEE(
f0(T<x> a0)8 void f0(T<x> a0) {}
9 }
10
11 namespace test1 {
12 // CHECK: void @_ZN5test12f0Ef
f0(float)13 void f0(float) {}
14 template<void (&)(float)> struct t1 {};
15 // CHECK: void @_ZN5test12f1ENS_2t1IL_ZNS_2f0EfEEE(
f1(t1<f0> a0)16 void f1(t1<f0> a0) {}
17 }
18
19 namespace test2 {
20 // CHECK: void @_ZN5test22f0Ef
f0(float)21 void f0(float) {}
22 template<void (*)(float)> struct t1 {};
23 // CHECK: void @_ZN5test22f1ENS_2t1IXadL_ZNS_2f0EfEEEE(
f1(t1<f0> a0)24 void f1(t1<f0> a0) {}
25 }
26
27 namespace test3 {
28 // CHECK: void @test3_f0
test3_f0(float)29 extern "C" void test3_f0(float) {}
30 template<void (&)(float)> struct t1 {};
31 // CHECK: void @_ZN5test32f1ENS_2t1IL_Z8test3_f0EEE(
f1(t1<test3_f0> a0)32 void f1(t1<test3_f0> a0) {}
33 }
34
35 namespace test4 {
36 // CHECK: void @test4_f0
test4_f0(float)37 extern "C" void test4_f0(float) {}
38 template<void (*)(float)> struct t1 {};
39 // CHECK: void @_ZN5test42f1ENS_2t1IXadL_Z8test4_f0EEEE(
f1(t1<test4_f0> a0)40 void f1(t1<test4_f0> a0) {}
41 }
42
43 // CHECK: void @test5_f0
test5_f0(float)44 extern "C" void test5_f0(float) {}
main(int)45 int main(int) {}
46
47 namespace test5 {
48 template<void (&)(float)> struct t1 {};
49 // CHECK: void @_ZN5test52f1ENS_2t1IL_Z8test5_f0EEE(
f1(t1<test5_f0> a0)50 void f1(t1<test5_f0> a0) {}
51
52 template<int (&)(int)> struct t2 {};
53 // CHECK: void @_ZN5test52f2ENS_2t2IL_Z4mainEEE
f2(t2<main> a0)54 void f2(t2<main> a0) {}
55 }
56
57 namespace test6 {
58 struct A { void im0(float); };
59 // CHECK: void @_ZN5test61A3im0Ef
im0(float)60 void A::im0(float) {}
61 template <void(A::*)(float)> class T { };
62 // CHECK: void @_ZN5test62f0ENS_1TIXadL_ZNS_1A3im0EfEEEE(
f0(T<& A::im0> a0)63 void f0(T<&A::im0> a0) {}
64 }
65
66 namespace test7 {
67 template<typename T>
68 struct meta {
69 static const unsigned value = sizeof(T);
70 };
71
72 template<unsigned> struct int_c {
73 typedef float type;
74 };
75
76 template<typename T>
77 struct X {
78 template<typename U>
Xtest7::X79 X(U*, typename int_c<(meta<T>::value + meta<U>::value)>::type *) { }
80 };
81
82 // CHECK: define weak_odr {{.*}} @_ZN5test71XIiEC1IdEEPT_PNS_5int_cIXplL_ZNS_4metaIiE5valueEEsr4metaIS3_EE5valueEE4typeE(
83 template X<int>::X(double*, float*);
84 }
85
86 namespace test8 {
87 template<typename T>
88 struct meta {
89 struct type {
90 static const unsigned value = sizeof(T);
91 };
92 };
93
94 template<unsigned> struct int_c {
95 typedef float type;
96 };
97
98 template<typename T>
f(int_c<meta<T>::type::value>)99 void f(int_c<meta<T>::type::value>) { }
100
101 // CHECK-LABEL: define weak_odr {{.*}}void @_ZN5test81fIiEEvNS_5int_cIXsr4metaIT_E4typeE5valueEEE(
102 template void f<int>(int_c<sizeof(int)>);
103 }
104
105 namespace test9 {
106 template<typename T>
107 struct supermeta {
108 template<typename U>
109 struct apply {
110 typedef T U::*type;
111 };
112 };
113
114 struct X { };
115
116 template<typename T, typename U>
117 typename supermeta<T>::template apply<U>::type f();
118
test_f()119 void test_f() {
120 // CHECK: @_ZN5test91fIiNS_1XEEENS_9supermetaIT_E5applyIT0_E4typeEv()
121 // Note: GCC incorrectly mangles this as
122 // _ZN5test91fIiNS_1XEEENS_9supermetaIT_E5apply4typeEv, while EDG
123 // gets it right.
124 f<int, X>();
125 }
126 }
127
128 namespace test10 {
129 template<typename T>
130 struct X {
131 template<typename U>
132 struct definition {
133 };
134 };
135
136 // CHECK: _ZN6test101fIidEENS_1XIT_E10definitionIT0_EES2_S5_
137 template<typename T, typename U>
f(T,U)138 typename X<T>::template definition<U> f(T, U) { }
139
g(int i,double d)140 void g(int i, double d) {
141 f(i, d);
142 }
143 }
144
145 // Report from cxx-abi-dev, 2012.01.04.
146 namespace test11 {
147 int cmp(char a, char b);
148 template <typename T, int (*cmp)(T, T)> struct A {};
f(A<T,cmp> &)149 template <typename T> void f(A<T,cmp> &) {}
150 template void f<char>(A<char,cmp> &);
151 // CHECK: @_ZN6test111fIcEEvRNS_1AIT_L_ZNS_3cmpEccEEE(
152 }
153
154 namespace test12 {
155 // Make sure we can mangle non-type template args with internal linkage.
f()156 static int f() {}
157 const int n = 10;
test()158 template<typename T, T v> void test() {}
use()159 void use() {
160 // CHECK-LABEL: define internal {{.*}}void @_ZN6test124testIFivEXadL_ZNS_L1fEvEEEEvv(
161 test<int(), &f>();
162 // CHECK-LABEL: define internal {{.*}}void @_ZN6test124testIRFivEL_ZNS_L1fEvEEEvv(
163 test<int(&)(), f>();
164 // CHECK-LABEL: define internal {{.*}}void @_ZN6test124testIPKiXadL_ZNS_L1nEEEEEvv(
165 test<const int*, &n>();
166 // CHECK-LABEL: define internal {{.*}}void @_ZN6test124testIRKiL_ZNS_L1nEEEEvv(
167 test<const int&, n>();
168 }
169 }
170
171 // rdar://problem/12072531
172 // Test the boundary condition of minimal signed integers.
173 namespace test13 {
returnChar()174 template <char c> char returnChar() { return c; }
175 template char returnChar<-128>();
176 // CHECK: @_ZN6test1310returnCharILcn128EEEcv()
177
returnShort()178 template <short s> short returnShort() { return s; }
179 template short returnShort<-32768>();
180 // CHECK: @_ZN6test1311returnShortILsn32768EEEsv()
181 }
182
183 namespace test14 {
inl(bool b)184 template <typename> inline int inl(bool b) {
185 if (b) {
186 static struct {
187 int field;
188 } a;
189 // CHECK: @_ZZN6test143inlIvEEibE1a
190
191 return a.field;
192 } else {
193 static struct {
194 int field;
195 } a;
196 // CHECK: @_ZZN6test143inlIvEEibE1a_0
197
198 return a.field;
199 }
200 }
201
call(bool b)202 int call(bool b) { return inl<void>(b); }
203 }
204
205 namespace std {
206 template <class _Tp, _Tp...> struct integer_sequence {};
207 }
208
209 namespace test15 {
210 template <int N>
make()211 __make_integer_seq<std::integer_sequence, int, N> make() {}
212 template __make_integer_seq<std::integer_sequence, int, 5> make<5>();
213 // CHECK: define weak_odr {{.*}} @_ZN6test154makeILi5EEE18__make_integer_seqISt16integer_sequenceiXT_EEv(
214 }
215