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
| // RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin10 -mconstructor-aliases | FileCheck %s
struct A {
A();
};
// CHECK: @_ZN1AC1Ev = unnamed_addr alias {{.*}} @_ZN1AC2Ev
// CHECK-LABEL: define void @_ZN1AC2Ev(%struct.A* %this) unnamed_addr
A::A() { }
struct B : virtual A {
B();
};
// CHECK-LABEL: define void @_ZN1BC2Ev(%struct.B* %this, i8** %vtt) unnamed_addr
// CHECK-LABEL: define void @_ZN1BC1Ev(%struct.B* %this) unnamed_addr
B::B() { }
struct C : virtual A {
C(bool);
};
// CHECK-LABEL: define void @_ZN1CC2Eb(%struct.C* %this, i8** %vtt, i1 zeroext %0) unnamed_addr
// CHECK-LABEL: define void @_ZN1CC1Eb(%struct.C* %this, i1 zeroext %0) unnamed_addr
C::C(bool) { }
// PR6251
namespace PR6251 {
// Test that we don't call the A<char> constructor twice.
template<typename T>
struct A { A(); };
struct B : virtual A<char> { };
struct C : virtual A<char> { };
struct D : B, C {
D();
};
// CHECK-LABEL: define void @_ZN6PR62511DC1Ev(%"struct.PR6251::D"* %this) unnamed_addr
// CHECK: call void @_ZN6PR62511AIcEC2Ev
// CHECK-NOT: call void @_ZN6PR62511AIcEC2Ev
// CHECK: ret void
D::D() { }
}
namespace virtualBaseAlignment {
// Check that the store to B::x in the base constructor has an 8-byte alignment.
// CHECK: define linkonce_odr void @_ZN20virtualBaseAlignment1BC1Ev(%[[STRUCT_B:.*]]* %[[THIS:.*]])
// CHECK: %[[THIS_ADDR:.*]] = alloca %[[STRUCT_B]]*, align 8
// CHECK: store %[[STRUCT_B]]* %[[THIS]], %[[STRUCT_B]]** %[[THIS_ADDR]], align 8
// CHECK: %[[THIS1:.*]] = load %[[STRUCT_B]]*, %[[STRUCT_B]]** %[[THIS_ADDR]], align 8
// CHECK: %[[X:.*]] = getelementptr inbounds %[[STRUCT_B]], %[[STRUCT_B]]* %[[THIS1]], i32 0, i32 2
// CHECK: store i32 123, i32* %[[X]], align 16
// CHECK: define linkonce_odr void @_ZN20virtualBaseAlignment1BC2Ev(%[[STRUCT_B]]* %[[THIS:.*]], i8** %{{.*}})
// CHECK: %[[THIS_ADDR:.*]] = alloca %[[STRUCT_B]]*, align 8
// CHECK: store %[[STRUCT_B]]* %[[THIS]], %[[STRUCT_B]]** %[[THIS_ADDR]], align 8
// CHECK: %[[THIS1:.*]] = load %[[STRUCT_B]]*, %[[STRUCT_B]]** %[[THIS_ADDR]], align 8
// CHECK: %[[X:.*]] = getelementptr inbounds %[[STRUCT_B]], %[[STRUCT_B]]* %[[THIS1]], i32 0, i32 2
// CHECK: store i32 123, i32* %[[X]], align 8
struct A {
__attribute__((aligned(16))) double data1;
};
struct B : public virtual A {
B() : x(123) {}
double a;
int x;
};
struct C : public virtual B {};
void test() { B b; C c; }
}
|