1 // RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin10 -mconstructor-aliases | FileCheck %s
2
3 struct A {
4 A();
5 };
6
7 // CHECK: @_ZN1AC1Ev = unnamed_addr alias {{.*}} @_ZN1AC2Ev
8 // CHECK-LABEL: define void @_ZN1AC2Ev(%struct.A* {{[^,]*}} %this) unnamed_addr
A()9 A::A() { }
10
11 struct B : virtual A {
12 B();
13 };
14
15 // CHECK-LABEL: define void @_ZN1BC2Ev(%struct.B* {{[^,]*}} %this, i8** %vtt) unnamed_addr
16 // CHECK-LABEL: define void @_ZN1BC1Ev(%struct.B* {{[^,]*}} %this) unnamed_addr
B()17 B::B() { }
18
19 struct C : virtual A {
20 C(bool);
21 };
22
23 // CHECK-LABEL: define void @_ZN1CC2Eb(%struct.C* {{[^,]*}} %this, i8** %vtt, i1 zeroext %0) unnamed_addr
24 // CHECK-LABEL: define void @_ZN1CC1Eb(%struct.C* {{[^,]*}} %this, i1 zeroext %0) unnamed_addr
C(bool)25 C::C(bool) { }
26
27 // PR6251
28 namespace PR6251 {
29
30 // Test that we don't call the A<char> constructor twice.
31
32 template<typename T>
33 struct A { A(); };
34
35 struct B : virtual A<char> { };
36 struct C : virtual A<char> { };
37
38 struct D : B, C {
39 D();
40 };
41
42 // CHECK-LABEL: define void @_ZN6PR62511DC1Ev(%"struct.PR6251::D"* {{[^,]*}} %this) unnamed_addr
43 // CHECK: call void @_ZN6PR62511AIcEC2Ev
44 // CHECK-NOT: call void @_ZN6PR62511AIcEC2Ev
45 // CHECK: ret void
D()46 D::D() { }
47
48 }
49
50 namespace virtualBaseAlignment {
51
52 // Check that the store to B::x in the base constructor has an 8-byte alignment.
53
54 // CHECK: define linkonce_odr void @_ZN20virtualBaseAlignment1BC1Ev(%[[STRUCT_B:.*]]* {{[^,]*}} %[[THIS:.*]])
55 // CHECK: %[[THIS_ADDR:.*]] = alloca %[[STRUCT_B]]*, align 8
56 // CHECK: store %[[STRUCT_B]]* %[[THIS]], %[[STRUCT_B]]** %[[THIS_ADDR]], align 8
57 // CHECK: %[[THIS1:.*]] = load %[[STRUCT_B]]*, %[[STRUCT_B]]** %[[THIS_ADDR]], align 8
58 // CHECK: %[[X:.*]] = getelementptr inbounds %[[STRUCT_B]], %[[STRUCT_B]]* %[[THIS1]], i32 0, i32 2
59 // CHECK: store i32 123, i32* %[[X]], align 16
60
61 // CHECK: define linkonce_odr void @_ZN20virtualBaseAlignment1BC2Ev(%[[STRUCT_B]]* {{[^,]*}} %[[THIS:.*]], i8** %{{.*}})
62 // CHECK: %[[THIS_ADDR:.*]] = alloca %[[STRUCT_B]]*, align 8
63 // CHECK: store %[[STRUCT_B]]* %[[THIS]], %[[STRUCT_B]]** %[[THIS_ADDR]], align 8
64 // CHECK: %[[THIS1:.*]] = load %[[STRUCT_B]]*, %[[STRUCT_B]]** %[[THIS_ADDR]], align 8
65 // CHECK: %[[X:.*]] = getelementptr inbounds %[[STRUCT_B]], %[[STRUCT_B]]* %[[THIS1]], i32 0, i32 2
66 // CHECK: store i32 123, i32* %[[X]], align 8
67
68 struct A {
69 __attribute__((aligned(16))) double data1;
70 };
71
72 struct B : public virtual A {
BvirtualBaseAlignment::B73 B() : x(123) {}
74 double a;
75 int x;
76 };
77
78 struct C : public virtual B {};
79
test()80 void test() { B b; C c; }
81
82 }
83