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(ptr {{[^,]*}} %this) unnamed_addr 9 A::A() { } 10 11 struct B : virtual A { 12 B(); 13 }; 14 15 // CHECK-LABEL: define{{.*}} void @_ZN1BC2Ev(ptr {{[^,]*}} %this, ptr noundef %vtt) unnamed_addr 16 // CHECK-LABEL: define{{.*}} void @_ZN1BC1Ev(ptr {{[^,]*}} %this) unnamed_addr 17 B::B() { } 18 19 struct C : virtual A { 20 C(bool); 21 }; 22 23 // CHECK-LABEL: define{{.*}} void @_ZN1CC2Eb(ptr {{[^,]*}} %this, ptr noundef %vtt, i1 noundef zeroext %0) unnamed_addr 24 // CHECK-LABEL: define{{.*}} void @_ZN1CC1Eb(ptr {{[^,]*}} %this, i1 noundef zeroext %0) 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(ptr {{[^,]*}} %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(ptr {{[^,]*}} %[[THIS:.*]]) 55 // CHECK: %[[THIS_ADDR:.*]] = alloca ptr, align 8 56 // CHECK: store ptr %[[THIS]], ptr %[[THIS_ADDR]], align 8 57 // CHECK: %[[THIS1:.*]] = load ptr, ptr %[[THIS_ADDR]], align 8 58 // CHECK: %[[X:.*]] = getelementptr inbounds nuw %[[STRUCT_B:.*]], ptr %[[THIS1]], i32 0, i32 2 59 // CHECK: store i32 123, ptr %[[X]], align 16 60 61 // CHECK: define linkonce_odr void @_ZN20virtualBaseAlignment1BC2Ev(ptr {{[^,]*}} %[[THIS:.*]], ptr noundef %{{.*}}) 62 // CHECK: %[[THIS_ADDR:.*]] = alloca ptr, align 8 63 // CHECK: store ptr %[[THIS]], ptr %[[THIS_ADDR]], align 8 64 // CHECK: %[[THIS1:.*]] = load ptr, ptr %[[THIS_ADDR]], align 8 65 // CHECK: %[[X:.*]] = getelementptr inbounds nuw %[[STRUCT_B]], ptr %[[THIS1]], i32 0, i32 2 66 // CHECK: store i32 123, ptr %[[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