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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
| // RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-darwin10 %s -emit-llvm -o %t
// RUN: FileCheck %s < %t
// RUN: FileCheck -check-prefix=CHECK-PR10720 %s < %t
extern "C" int printf(...);
struct M {
M() { printf("M()\n"); }
M(int i) { iM = i; printf("M(%d)\n", i); }
int iM;
void MPR() {printf("iM = %d\n", iM); };
};
struct P {
P() { printf("P()\n"); }
P(int i) { iP = i; printf("P(%d)\n", i); }
int iP;
void PPR() {printf("iP = %d\n", iP); };
};
struct Q {
Q() { printf("Q()\n"); }
Q(int i) { iQ = i; printf("Q(%d)\n", i); }
int iQ;
void QPR() {printf("iQ = %d\n", iQ); };
};
struct N : M , P, Q {
N() : f1(1.314), P(2000), ld(00.1234+f1), M(1000), Q(3000),
d1(3.4567), i1(1234), m1(100) { printf("N()\n"); }
M m1;
M m2;
float f1;
int i1;
float d1;
void PR() {
printf("f1 = %f d1 = %f i1 = %d ld = %f \n", f1,d1,i1, ld);
MPR();
PPR();
QPR();
printf("iQ = %d\n", iQ);
printf("iP = %d\n", iP);
printf("iM = %d\n", iM);
// FIXME. We don't yet support this syntax.
// printf("iQ = %d\n", (*this).iQ);
printf("iQ = %d\n", this->iQ);
printf("iP = %d\n", this->iP);
printf("iM = %d\n", this->iM);
}
float ld;
float ff;
M arr_m[3];
P arr_p[1][3];
Q arr_q[2][3][4];
};
int main() {
M m1;
N n1;
n1.PR();
}
// PR5826
template <class T> struct A {
A() {}
A(int) {}
A(const A&) {}
~A() {}
operator int() {return 0;}
};
// CHECK-LABEL: define void @_Z1fv()
void f() {
// CHECK: call void @_ZN1AIsEC1Ei
A<short> a4 = 97;
// CHECK-NEXT: store i32 17
int i = 17;
// CHECK-NEXT: call void @_ZN1AIsED1Ev
// CHECK-NOT: call void @_ZN1AIsED1Ev
// CHECK: ret void
}
// Make sure we initialize the vtable pointer if it's required by a
// base initializer.
namespace InitVTable {
struct A { A(int); };
struct B : A {
virtual int foo();
B();
B(int);
};
// CHECK-LABEL: define void @_ZN10InitVTable1BC2Ev(%"struct.InitVTable::B"* %this) unnamed_addr
// CHECK: [[T0:%.*]] = bitcast [[B:%.*]]* [[THIS:%.*]] to i32 (...)***
// CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTVN10InitVTable1BE, i32 0, inrange i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]]
// CHECK: [[VTBL:%.*]] = load i32 ([[B]]*)**, i32 ([[B]]*)*** {{%.*}}
// CHECK-NEXT: [[FNP:%.*]] = getelementptr inbounds i32 ([[B]]*)*, i32 ([[B]]*)** [[VTBL]], i64 0
// CHECK-NEXT: [[FN:%.*]] = load i32 ([[B]]*)*, i32 ([[B]]*)** [[FNP]]
// CHECK-NEXT: [[ARG:%.*]] = call i32 [[FN]]([[B]]* [[THIS]])
// CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]])
// CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* [[THIS]] to i32 (...)***
// CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTVN10InitVTable1BE, i32 0, inrange i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]]
// CHECK-NEXT: ret void
B::B() : A(foo()) {}
// CHECK-LABEL: define void @_ZN10InitVTable1BC2Ei(%"struct.InitVTable::B"* %this, i32 %x) unnamed_addr
// CHECK: [[ARG:%.*]] = add nsw i32 {{%.*}}, 5
// CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]])
// CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* {{%.*}} to i32 (...)***
// CHECK-NEXT: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTVN10InitVTable1BE, i32 0, inrange i32 0, i32 2) to i32 (...)**), i32 (...)*** [[T0]]
// CHECK-NEXT: ret void
B::B(int x) : A(x + 5) {}
}
namespace rdar9694300 {
struct X {
int x;
};
// CHECK-LABEL: define void @_ZN11rdar96943001fEv
void f() {
// CHECK: alloca
X x;
// CHECK-NEXT: [[I:%.*]] = alloca i32
// CHECK-NEXT: store i32 17, i32* [[I]]
int i = 17;
// CHECK-NEXT: ret void
}
}
// Check that we emit a zero initialization step for list-value-initialization
// which calls a trivial default constructor.
namespace PR13273 {
struct U {
int t;
U() = default;
};
struct S : U {
S() = default;
};
// CHECK: define {{.*}}@_ZN7PR132731fEv(
int f() {
// CHECK-NOT: }
// CHECK: llvm.memset{{.*}}i8 0
return (new S{})->t;
}
}
template<typename T>
struct X {
X(const X &);
T *start;
T *end;
};
template<typename T> struct X;
// Make sure that the instantiated constructor initializes start and
// end properly.
// CHECK-LABEL: define linkonce_odr void @_ZN1XIiEC2ERKS0_(%struct.X* %this, %struct.X* dereferenceable({{[0-9]+}}) %other) unnamed_addr
// CHECK: {{store.*null}}
// CHECK: {{store.*null}}
// CHECK: ret
template<typename T>
X<T>::X(const X &other) : start(0), end(0) { }
X<int> get_X(X<int> x) { return x; }
namespace PR10720 {
struct X {
X(const X&);
X(X&&);
X& operator=(const X&);
X& operator=(X&&);
~X();
};
struct pair2 {
X second[4];
// CHECK-PR10720: define linkonce_odr {{.*}} @_ZN7PR107205pair2aSERKS0_
// CHECK-PR10720: load
// CHECK-PR10720: icmp ne
// CHECK-PR10720-NEXT: br i1
// CHECK-PR10720: call {{.*}} @_ZN7PR107201XaSERKS0_
// CHECK-PR10720: ret
pair2 &operator=(const pair2&) = default;
// CHECK-PR10720: define linkonce_odr {{.*}} @_ZN7PR107205pair2aSEOS0_
// CHECK-PR10720: load
// CHECK-PR10720: icmp ne
// CHECK-PR10720-NEXT: br i1
// CHECK-PR10720: call {{.*}} @_ZN7PR107201XaSEOS0_
// CHECK-PR10720: ret
pair2 &operator=(pair2&&) = default;
// CHECK-PR10720-LABEL: define linkonce_odr void @_ZN7PR107204pairC2ERKS0_
// CHECK-PR10720-NOT: ret
// CHECK-PR10720: call void @llvm.memcpy
// CHECK-PR10720-NEXT: ret void
// CHECK-PR10720-LABEL: define linkonce_odr void @_ZN7PR107205pair2C2ERKS0_
// CHECK-PR10720-NOT: ret
// CHECK-PR10720: call void @_ZN7PR107201XC1ERKS0_
// CHECK-PR10720: icmp eq
// CHECK-PR10720-NEXT: br i1
// CHECK-PR10720: ret void
// CHECK-PR10720-LABEL: define linkonce_odr void @_ZN7PR107205pair2C2EOS0_
// CHECK-PR10720-NOT: ret
// CHECK-PR10720: load
// CHECK-PR10720: call void @_ZN7PR107201XC1EOS0_
// CHECK-PR10720: icmp eq
// CHECK-PR10720-NEXT: br i1
// CHECK-PR10720: ret void
pair2(pair2&&) = default;
pair2(const pair2&) = default;
};
struct pair : X { // Make the copy constructor non-trivial, so we actually generate it.
int second[4];
pair(const pair&) = default;
};
void foo(const pair &x, const pair2 &x2) {
pair y(x);
pair2 y2(x2);
pair2 y2m(static_cast<pair2&&>(y2));
y2 = x2;
y2m = static_cast<pair2&&>(y2);
}
}
|