| 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 |
| 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 |
| 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) unnamed_addr |
| 24 | // CHECK-LABEL: define void @_ZN1CC1Eb(%struct.C* %this, i1 zeroext) unnamed_addr |
| 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 |
| 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 { |
| 73 | B() : x(123) {} |
| 74 | double a; |
| 75 | int x; |
| 76 | }; |
| 77 | |
| 78 | struct C : public virtual B {}; |
| 79 | |
| 80 | void test() { B b; C c; } |
| 81 | |
| 82 | } |
| 83 | |