1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
| // RUN: %clang_cc1 -triple i386-unknown-unknown -std=c++11 -fvisibility-inlines-hidden -emit-llvm -o - %s -O2 -disable-llvm-passes | FileCheck %s
// The trickery with optimization in the run line is to get IR
// generation to emit available_externally function bodies, but not
// actually inline them (and thus remove the emitted bodies).
struct X0 {
void __attribute__((visibility("default"))) f1() { }
void f2() { }
void f3();
static void f5() { }
virtual void f6() { }
};
inline void X0::f3() { }
template<typename T>
struct X1 {
void __attribute__((visibility("default"))) f1() { }
void f2() { }
void f3();
void f4();
static void f5() { }
virtual void f6() { }
};
template<typename T>
inline void X1<T>::f3() { }
template<>
inline void X1<int>::f4() { }
struct __attribute__((visibility("default"))) X2 {
void f2() { }
};
extern template struct X1<float>;
void use(X0 *x0, X1<int> *x1, X2 *x2, X1<float> *x3) {
// CHECK-LABEL: define linkonce_odr void @_ZN2X02f1Ev
x0->f1();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X02f2Ev
x0->f2();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X02f3Ev
x0->f3();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X02f5Ev
X0::f5();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X02f6Ev
x0->X0::f6();
// CHECK-LABEL: define linkonce_odr void @_ZN2X1IiE2f1Ev
x1->f1();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X1IiE2f2Ev
x1->f2();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X1IiE2f3Ev
x1->f3();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X1IiE2f4Ev
x1->f4();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X1IiE2f5Ev
X1<int>::f5();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X1IiE2f6Ev
x1->X1::f6();
// CHECK-LABEL: define linkonce_odr hidden void @_ZN2X22f2Ev
x2->f2();
// CHECK-LABEL: define available_externally void @_ZN2X1IfE2f2Ev
x3->f2();
}
// rdar://problem/8614470
namespace test1 {
struct __attribute__((visibility("default"))) A {
inline void foo();
~A();
};
void test() {
A a;
a.foo();
}
// CHECK: declare void @_ZN5test11A3fooEv
// CHECK: declare {{.*}} @_ZN5test11AD1Ev
}
// PR8713
namespace test2 {
struct A {};
template <class T> class B {};
typedef B<A> arg;
namespace ns __attribute__((visibility("default"))) {
template <class T> inline void foo() {}
extern template void foo<arg>();
}
void test() {
ns::foo<arg>();
}
// CHECK-LABEL: define available_externally void @_ZN5test22ns3fooINS_1BINS_1AEEEEEvv()
}
namespace PR11642 {
template <typename T>
class Foo {
public:
T foo(T x) { return x; }
};
extern template class Foo<int>;
template class Foo<int>;
// CHECK-LABEL: define weak_odr i32 @_ZN7PR116423FooIiE3fooEi
}
// Test that clang implements the new gcc behaviour for inline functions.
// GCC PR30066.
namespace test3 {
inline void foo(void) {
}
template<typename T>
inline void zed() {
}
template void zed<float>();
void bar(void) {
foo();
zed<int>();
}
// CHECK-LABEL: define weak_odr void @_ZN5test33zedIfEEvv
// CHECK-LABEL: define linkonce_odr hidden void @_ZN5test33fooEv
// CHECK-LABEL: define linkonce_odr hidden void @_ZN5test33zedIiEEvv
}
namespace test4 {
extern inline __attribute__ ((__gnu_inline__))
void foo() {}
void bar() {
foo();
}
// CHECK-LABEL: define available_externally void @_ZN5test43fooE
}
namespace test5 {
// just don't crash.
template <int> inline void Op();
class UnaryInstruction {
UnaryInstruction() {
Op<0>();
}
};
template <int Idx_nocapture> void Op() {
}
}
namespace test6 {
// just don't crash.
template <typename T>
void f(T x) {
}
struct C {
static void g() {
f([](){});
}
};
void g() {
C::g();
}
}
namespace PR34811 {
template <typename T> void tf() {}
// CHECK-LABEL: define linkonce_odr hidden i8* @_ZN7PR348111fEv(
inline void *f() {
auto l = []() {};
// CHECK-LABEL: define linkonce_odr hidden void @_ZN7PR348112tfIZNS_1fEvEUlvE_EEvv(
return (void *)&tf<decltype(l)>;
}
void *p = (void *)f;
}
|