| Stephen Hines | 6bcf27b | 2014-05-29 04:14:42 -0700 | [diff] [blame] | 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; } |