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