forked from OSchip/llvm-project
95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
// RUN: %clang_cc1 %s -fno-rtti -triple=i386-pc-win32 -emit-llvm -o %t.ll -fdump-vtable-layouts >%t
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// RUN: FileCheck %s < %t
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struct A {
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virtual ~A();
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virtual void z1();
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};
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struct B {
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virtual ~B();
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};
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struct C : A, B {
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// CHECK-LABEL: VFTable for 'A' in 'C' (2 entries).
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// CHECK-NEXT: 0 | C::~C() [scalar deleting]
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// CHECK-NEXT: 1 | void A::z1()
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// CHECK-LABEL: VFTable for 'B' in 'C' (1 entry).
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// CHECK-NEXT: 0 | C::~C() [scalar deleting]
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// CHECK-NEXT: [this adjustment: -4 non-virtual]
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// CHECK-LABEL: Thunks for 'C::~C()' (1 entry).
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// CHECK-NEXT: 0 | [this adjustment: -4 non-virtual]
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// CHECK-LABEL: VFTable indices for 'C' (1 entry).
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// CHECK-NEXT: 0 | C::~C() [scalar deleting]
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virtual ~C();
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};
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void build_vftable(C *obj) { delete obj; }
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struct D {
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// No virtual destructor here!
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virtual void z4();
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};
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struct E : D, B {
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// Implicit virtual dtor here!
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// CHECK-LABEL: VFTable for 'D' in 'E' (1 entry).
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// CHECK-NEXT: 0 | void D::z4()
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// CHECK-LABEL: VFTable for 'B' in 'E' (1 entry).
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// CHECK-NEXT: 0 | E::~E() [scalar deleting]
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// CHECK-NEXT: [this adjustment: -4 non-virtual]
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// CHECK-LABEL: Thunks for 'E::~E()' (1 entry).
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// CHECK-NEXT: 0 | [this adjustment: -4 non-virtual]
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// CHECK-LABEL: VFTable indices for 'E' (1 entry).
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// CHECK-NEXT: -- accessible via vfptr at offset 4 --
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// CHECK-NEXT: 0 | E::~E() [scalar deleting]
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};
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void build_vftable(E *obj) { delete obj; }
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struct F : D, B {
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// Implicit virtual dtor here!
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// CHECK-LABEL: VFTable for 'D' in 'F' (1 entry).
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// CHECK-NEXT: 0 | void D::z4()
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// CHECK-LABEL: VFTable for 'B' in 'F' (1 entry).
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// CHECK-NEXT: 0 | F::~F() [scalar deleting]
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// CHECK-NEXT: [this adjustment: -4 non-virtual]
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// CHECK-LABEL: Thunks for 'F::~F()' (1 entry).
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// CHECK-NEXT: 0 | [this adjustment: -4 non-virtual]
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// CHECK-LABEL: VFTable indices for 'F' (1 entry).
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// CHECK-NEXT: -- accessible via vfptr at offset 4 --
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// CHECK-NEXT: 0 | F::~F() [scalar deleting]
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};
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void build_vftable(F *obj) { delete obj; }
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struct G : F {
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// CHECK-LABEL: VFTable for 'D' in 'F' in 'G' (1 entry).
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// CHECK-NEXT: 0 | void D::z4()
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// CHECK-LABEL: VFTable for 'B' in 'F' in 'G' (1 entry).
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// CHECK-NEXT: 0 | G::~G() [scalar deleting]
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// CHECK-NEXT: [this adjustment: -4 non-virtual]
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// CHECK-LABEL: Thunks for 'G::~G()' (1 entry).
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// CHECK-NEXT: 0 | [this adjustment: -4 non-virtual]
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// CHECK-LABEL: VFTable indices for 'G' (1 entry).
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// CHECK-NEXT: -- accessible via vfptr at offset 4 --
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// CHECK-NEXT: 0 | G::~G() [scalar deleting]
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virtual ~G();
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};
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void build_vftable(G *obj) { delete obj; }
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