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
build_vftable(C * obj)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
build_vftable(E * obj)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
build_vftable(F * obj)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
build_vftable(G * obj)94 void build_vftable(G *obj) { delete obj; }
95