1 // RUN: %clang_cc1 %s -fno-rtti -triple=i386-pc-win32 -emit-llvm -o %t.ll -fdump-vtable-layouts >%t 2 // RUN: FileCheck %s < %t 3 4 struct A { 5 virtual ~A(); 6 virtual void z1(); 7 }; 8 9 struct B { 10 virtual ~B(); 11 }; 12 13 struct C : A, B { 14 // CHECK-LABEL: VFTable for 'A' in 'C' (2 entries). 15 // CHECK-NEXT: 0 | C::~C() [scalar deleting] 16 // CHECK-NEXT: 1 | void A::z1() 17 18 // CHECK-LABEL: VFTable for 'B' in 'C' (1 entry). 19 // CHECK-NEXT: 0 | C::~C() [scalar deleting] 20 // CHECK-NEXT: [this adjustment: -4 non-virtual] 21 22 // CHECK-LABEL: Thunks for 'C::~C()' (1 entry). 23 // CHECK-NEXT: 0 | [this adjustment: -4 non-virtual] 24 25 // CHECK-LABEL: VFTable indices for 'C' (1 entry). 26 // CHECK-NEXT: 0 | C::~C() [scalar deleting] 27 virtual ~C(); 28 }; 29 30 void build_vftable(C *obj) { delete obj; } 31 32 struct D { 33 // No virtual destructor here! 34 virtual void z4(); 35 }; 36 37 struct E : D, B { 38 // Implicit virtual dtor here! 39 40 // CHECK-LABEL: VFTable for 'D' in 'E' (1 entry). 41 // CHECK-NEXT: 0 | void D::z4() 42 43 // CHECK-LABEL: VFTable for 'B' in 'E' (1 entry). 44 // CHECK-NEXT: 0 | E::~E() [scalar deleting] 45 // CHECK-NEXT: [this adjustment: -4 non-virtual] 46 47 // CHECK-LABEL: Thunks for 'E::~E()' (1 entry). 48 // CHECK-NEXT: 0 | [this adjustment: -4 non-virtual] 49 50 // CHECK-LABEL: VFTable indices for 'E' (1 entry). 51 // CHECK-NEXT: -- accessible via vfptr at offset 4 -- 52 // CHECK-NEXT: 0 | E::~E() [scalar deleting] 53 }; 54 55 void build_vftable(E *obj) { delete obj; } 56 57 struct F : D, B { 58 // Implicit virtual dtor here! 59 60 // CHECK-LABEL: VFTable for 'D' in 'F' (1 entry). 61 // CHECK-NEXT: 0 | void D::z4() 62 63 // CHECK-LABEL: VFTable for 'B' in 'F' (1 entry). 64 // CHECK-NEXT: 0 | F::~F() [scalar deleting] 65 // CHECK-NEXT: [this adjustment: -4 non-virtual] 66 67 // CHECK-LABEL: Thunks for 'F::~F()' (1 entry). 68 // CHECK-NEXT: 0 | [this adjustment: -4 non-virtual] 69 70 // CHECK-LABEL: VFTable indices for 'F' (1 entry). 71 // CHECK-NEXT: -- accessible via vfptr at offset 4 -- 72 // CHECK-NEXT: 0 | F::~F() [scalar deleting] 73 }; 74 75 void build_vftable(F *obj) { delete obj; } 76 77 struct G : F { 78 // CHECK-LABEL: VFTable for 'D' in 'F' in 'G' (1 entry). 79 // CHECK-NEXT: 0 | void D::z4() 80 81 // CHECK-LABEL: VFTable for 'B' in 'F' in 'G' (1 entry). 82 // CHECK-NEXT: 0 | G::~G() [scalar deleting] 83 // CHECK-NEXT: [this adjustment: -4 non-virtual] 84 85 // CHECK-LABEL: Thunks for 'G::~G()' (1 entry). 86 // CHECK-NEXT: 0 | [this adjustment: -4 non-virtual] 87 88 // CHECK-LABEL: VFTable indices for 'G' (1 entry). 89 // CHECK-NEXT: -- accessible via vfptr at offset 4 -- 90 // CHECK-NEXT: 0 | G::~G() [scalar deleting] 91 virtual ~G(); 92 }; 93 94 void build_vftable(G *obj) { delete obj; } 95
