diff options
Diffstat (limited to 'clang/test/CodeGenCXX/vtable-layout.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/vtable-layout.cpp | 1729 |
1 files changed, 1729 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/vtable-layout.cpp b/clang/test/CodeGenCXX/vtable-layout.cpp new file mode 100644 index 0000000..d7644b9 --- /dev/null +++ b/clang/test/CodeGenCXX/vtable-layout.cpp @@ -0,0 +1,1729 @@ +// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm-only -fdump-vtable-layouts > %t 2>&1 +// RUN: FileCheck --check-prefix=CHECK-1 %s < %t +// RUN: FileCheck --check-prefix=CHECK-2 %s < %t +// RUN: FileCheck --check-prefix=CHECK-3 %s < %t +// RUN: FileCheck --check-prefix=CHECK-4 %s < %t +// RUN: FileCheck --check-prefix=CHECK-5 %s < %t +// RUN: FileCheck --check-prefix=CHECK-6 %s < %t +// RUN: FileCheck --check-prefix=CHECK-7 %s < %t +// RUN: FileCheck --check-prefix=CHECK-8 %s < %t +// RUN: FileCheck --check-prefix=CHECK-9 %s < %t +// RUN: FileCheck --check-prefix=CHECK-10 %s < %t +// RUN: FileCheck --check-prefix=CHECK-11 %s < %t +// RUN: FileCheck --check-prefix=CHECK-12 %s < %t +// RUN: FileCheck --check-prefix=CHECK-13 %s < %t +// RUN: FileCheck --check-prefix=CHECK-14 %s < %t +// RUN: FileCheck --check-prefix=CHECK-15 %s < %t +// RUN: FileCheck --check-prefix=CHECK-16 %s < %t +// RUN: FileCheck --check-prefix=CHECK-17 %s < %t +// RUN: FileCheck --check-prefix=CHECK-18 %s < %t +// RUN: FileCheck --check-prefix=CHECK-19 %s < %t +// RUN: FileCheck --check-prefix=CHECK-20 %s < %t +// RUN: FileCheck --check-prefix=CHECK-21 %s < %t +// RUN: FileCheck --check-prefix=CHECK-22 %s < %t +// RUN: FileCheck --check-prefix=CHECK-23 %s < %t +// RUN: FileCheck --check-prefix=CHECK-24 %s < %t +// RUN: FileCheck --check-prefix=CHECK-25 %s < %t +// RUN: FileCheck --check-prefix=CHECK-26 %s < %t +// RUN: FileCheck --check-prefix=CHECK-27 %s < %t +// RUN: FileCheck --check-prefix=CHECK-28 %s < %t +// RUN: FileCheck --check-prefix=CHECK-29 %s < %t +// RUN: FileCheck --check-prefix=CHECK-30 %s < %t +// RUN: FileCheck --check-prefix=CHECK-31 %s < %t +// RUN: FileCheck --check-prefix=CHECK-32 %s < %t +// RUN: FileCheck --check-prefix=CHECK-33 %s < %t +// RUN: FileCheck --check-prefix=CHECK-34 %s < %t +// RUN: FileCheck --check-prefix=CHECK-35 %s < %t +// RUN: FileCheck --check-prefix=CHECK-36 %s < %t +// RUN: FileCheck --check-prefix=CHECK-37 %s < %t +// RUN: FileCheck --check-prefix=CHECK-38 %s < %t +// RUN: FileCheck --check-prefix=CHECK-39 %s < %t +// RUN: FileCheck --check-prefix=CHECK-40 %s < %t +// RUN: FileCheck --check-prefix=CHECK-41 %s < %t +// RUN: FileCheck --check-prefix=CHECK-42 %s < %t +// RUN: FileCheck --check-prefix=CHECK-43 %s < %t +// RUN: FileCheck --check-prefix=CHECK-44 %s < %t + +// For now, just verify this doesn't crash. +namespace test0 { + struct Obj {}; + + struct Base { virtual const Obj *foo() = 0; }; + struct Derived : Base { virtual Obj *foo() { return new Obj(); } }; + + void test(Derived *D) { D->foo(); } +} + +namespace Test1 { +// CHECK-1: Vtable for 'Test1::A' (3 entries). +// CHECK-1-NEXT: 0 | offset_to_top (0) +// CHECK-1-NEXT: 1 | Test1::A RTTI +// CHECK-1-NEXT: -- (Test1::A, 0) vtable address -- +// CHECK-1-NEXT: 2 | void Test1::A::f() +struct A { + virtual void f(); +}; +void A::f() { } + +} + +namespace Test2 { + +// This is a smoke test of the vtable dumper. +// CHECK-2: Vtable for 'Test2::A' (9 entries). +// CHECK-2-NEXT: 0 | offset_to_top (0) +// CHECK-2-NEXT: 1 | Test2::A RTTI +// CHECK-2-NEXT: -- (Test2::A, 0) vtable address -- +// CHECK-2-NEXT: 2 | void Test2::A::f() +// CHECK-2-NEXT: 3 | void Test2::A::f() const +// CHECK-2-NEXT: 4 | Test2::A *Test2::A::g(int) +// CHECK-2-NEXT: 5 | Test2::A::~A() [complete] +// CHECK-2-NEXT: 6 | Test2::A::~A() [deleting] +// CHECK-2-NEXT: 7 | void Test2::A::h() +// CHECK-2-NEXT: 8 | Test2::A &Test2::A::operator=(const Test2::A &) +struct A { + virtual void f(); + virtual void f() const; + + virtual A* g(int a); + virtual ~A(); + virtual void h(); + virtual A& operator=(const A&); +}; +void A::f() { } + +// Another simple vtable dumper test. + +// CHECK-3: Vtable for 'Test2::B' (6 entries). +// CHECK-3-NEXT: 0 | offset_to_top (0) +// CHECK-3-NEXT: 1 | Test2::B RTTI +// CHECK-3-NEXT: -- (Test2::B, 0) vtable address -- +// CHECK-3-NEXT: 2 | void Test2::B::f() +// CHECK-3-NEXT: 3 | void Test2::B::g() [pure] +// CHECK-3-NEXT: 4 | Test2::B::~B() [complete] [pure] +// CHECK-3-NEXT: 5 | Test2::B::~B() [deleting] [pure] +struct B { + virtual void f(); + virtual void g() = 0; + virtual ~B() = 0; +}; +void B::f() { } + +} + +namespace Test3 { + +// If a function in a derived class overrides a function in a primary base, +// then the function should not have an entry in the derived class (unless the return +// value requires adjusting). + +// CHECK-4: Vtable for 'Test3::A' (3 entries). +// CHECK-4-NEXT: 0 | offset_to_top (0) +// CHECK-4-NEXT: 1 | Test3::A RTTI +// CHECK-4-NEXT: -- (Test3::A, 0) vtable address -- +// CHECK-4-NEXT: 2 | void Test3::A::f() +struct A { + virtual void f(); +}; +void A::f() { } + +// CHECK-5: Vtable for 'Test3::B' (4 entries). +// CHECK-5-NEXT: 0 | offset_to_top (0) +// CHECK-5-NEXT: 1 | Test3::B RTTI +// CHECK-5-NEXT: -- (Test3::A, 0) vtable address -- +// CHECK-5-NEXT: -- (Test3::B, 0) vtable address -- +// CHECK-5-NEXT: 2 | void Test3::B::f() +// CHECK-5-NEXT: 3 | void Test3::B::g() +struct B : A { + virtual void f(); + virtual void g(); +}; +void B::f() { } + +// CHECK-6: Vtable for 'Test3::C' (5 entries). +// CHECK-6-NEXT: 0 | offset_to_top (0) +// CHECK-6-NEXT: 1 | Test3::C RTTI +// CHECK-6-NEXT: -- (Test3::A, 0) vtable address -- +// CHECK-6-NEXT: -- (Test3::C, 0) vtable address -- +// CHECK-6-NEXT: 2 | void Test3::A::f() +// CHECK-6-NEXT: 3 | void Test3::C::g() +// CHECK-6-NEXT: 4 | void Test3::C::h() +struct C : A { + virtual void g(); + virtual void h(); +}; +void C::g() { } + +// CHECK-7: Vtable for 'Test3::D' (5 entries). +// CHECK-7-NEXT: 0 | offset_to_top (0) +// CHECK-7-NEXT: 1 | Test3::D RTTI +// CHECK-7-NEXT: -- (Test3::A, 0) vtable address -- +// CHECK-7-NEXT: -- (Test3::B, 0) vtable address -- +// CHECK-7-NEXT: -- (Test3::D, 0) vtable address -- +// CHECK-7-NEXT: 2 | void Test3::D::f() +// CHECK-7-NEXT: 3 | void Test3::D::g() +// CHECK-7-NEXT: 4 | void Test3::D::h() +struct D : B { + virtual void f(); + virtual void g(); + virtual void h(); +}; + +void D::f() { } +} + +namespace Test4 { + +// Test non-virtual result adjustments. + +struct R1 { int r1; }; +struct R2 { int r2; }; +struct R3 : R1, R2 { int r3; }; + +struct A { + virtual R2 *f(); +}; + +// CHECK-8: Vtable for 'Test4::B' (4 entries). +// CHECK-8-NEXT: 0 | offset_to_top (0) +// CHECK-8-NEXT: 1 | Test4::B RTTI +// CHECK-8-NEXT: -- (Test4::A, 0) vtable address -- +// CHECK-8-NEXT: -- (Test4::B, 0) vtable address -- +// CHECK-8-NEXT: 2 | Test4::R3 *Test4::B::f() +// CHECK-8-NEXT: [return adjustment: 4 non-virtual] +// CHECK-8-NEXT: 3 | Test4::R3 *Test4::B::f() + +struct B : A { + virtual R3 *f(); +}; +R3 *B::f() { return 0; } + +// Test virtual result adjustments. +struct V1 { int v1; }; +struct V2 : virtual V1 { int v1; }; + +struct C { + virtual V1 *f(); +}; + +// CHECK-9: Vtable for 'Test4::D' (4 entries). +// CHECK-9-NEXT: 0 | offset_to_top (0) +// CHECK-9-NEXT: 1 | Test4::D RTTI +// CHECK-9-NEXT: -- (Test4::C, 0) vtable address -- +// CHECK-9-NEXT: -- (Test4::D, 0) vtable address -- +// CHECK-9-NEXT: 2 | Test4::V2 *Test4::D::f() +// CHECK-9-NEXT: [return adjustment: 0 non-virtual, -24 vbase offset offset] +// CHECK-9-NEXT: 3 | Test4::V2 *Test4::D::f() +struct D : C { + virtual V2 *f(); +}; +V2 *D::f() { return 0; }; + +// Virtual result adjustments with an additional non-virtual adjustment. +struct V3 : virtual R3 { int r3; }; + +// CHECK-10: Vtable for 'Test4::E' (4 entries). +// CHECK-10-NEXT: 0 | offset_to_top (0) +// CHECK-10-NEXT: 1 | Test4::E RTTI +// CHECK-10-NEXT: -- (Test4::A, 0) vtable address -- +// CHECK-10-NEXT: -- (Test4::E, 0) vtable address -- +// CHECK-10-NEXT: 2 | Test4::V3 *Test4::E::f() +// CHECK-10-NEXT: [return adjustment: 4 non-virtual, -24 vbase offset offset] +// CHECK-10-NEXT: 3 | Test4::V3 *Test4::E::f() + +struct E : A { + virtual V3 *f(); +}; +V3 *E::f() { return 0;} + +// Test that a pure virtual member doesn't get a thunk. + +// CHECK-11: Vtable for 'Test4::F' (5 entries). +// CHECK-11-NEXT: 0 | offset_to_top (0) +// CHECK-11-NEXT: 1 | Test4::F RTTI +// CHECK-11-NEXT: -- (Test4::A, 0) vtable address -- +// CHECK-11-NEXT: -- (Test4::F, 0) vtable address -- +// CHECK-11-NEXT: 2 | Test4::R3 *Test4::F::f() [pure] +// CHECK-11-NEXT: 3 | void Test4::F::g() +// CHECK-11-NEXT: 4 | Test4::R3 *Test4::F::f() [pure] +struct F : A { + virtual void g(); + virtual R3 *f() = 0; +}; +void F::g() { } + +} + +namespace Test5 { + +// Simple secondary vtables without 'this' pointer adjustments. +struct A { + virtual void f(); + virtual void g(); + int a; +}; + +struct B1 : A { + virtual void f(); + int b1; +}; + +struct B2 : A { + virtual void g(); + int b2; +}; + +// CHECK-12: Vtable for 'Test5::C' (9 entries). +// CHECK-12-NEXT: 0 | offset_to_top (0) +// CHECK-12-NEXT: 1 | Test5::C RTTI +// CHECK-12-NEXT: -- (Test5::A, 0) vtable address -- +// CHECK-12-NEXT: -- (Test5::B1, 0) vtable address -- +// CHECK-12-NEXT: -- (Test5::C, 0) vtable address -- +// CHECK-12-NEXT: 2 | void Test5::B1::f() +// CHECK-12-NEXT: 3 | void Test5::A::g() +// CHECK-12-NEXT: 4 | void Test5::C::h() +// CHECK-12-NEXT: 5 | offset_to_top (-16) +// CHECK-12-NEXT: 6 | Test5::C RTTI +// CHECK-12-NEXT: -- (Test5::A, 16) vtable address -- +// CHECK-12-NEXT: -- (Test5::B2, 16) vtable address -- +// CHECK-12-NEXT: 7 | void Test5::A::f() +// CHECK-12-NEXT: 8 | void Test5::B2::g() +struct C : B1, B2 { + virtual void h(); +}; +void C::h() { } +} + +namespace Test6 { + +// Simple non-virtual 'this' pointer adjustments. +struct A1 { + virtual void f(); + int a; +}; + +struct A2 { + virtual void f(); + int a; +}; + +// CHECK-13: Vtable for 'Test6::C' (6 entries). +// CHECK-13-NEXT: 0 | offset_to_top (0) +// CHECK-13-NEXT: 1 | Test6::C RTTI +// CHECK-13-NEXT: -- (Test6::A1, 0) vtable address -- +// CHECK-13-NEXT: -- (Test6::C, 0) vtable address -- +// CHECK-13-NEXT: 2 | void Test6::C::f() +// CHECK-13-NEXT: 3 | offset_to_top (-16) +// CHECK-13-NEXT: 4 | Test6::C RTTI +// CHECK-13-NEXT: -- (Test6::A2, 16) vtable address -- +// CHECK-13-NEXT: 5 | void Test6::C::f() +// CHECK-13-NEXT: [this adjustment: -16 non-virtual] +struct C : A1, A2 { + virtual void f(); +}; +void C::f() { } + +} + +namespace Test7 { + +// Test that the D::f overrider for A::f have different 'this' pointer +// adjustments in the two A base subobjects. + +struct A { + virtual void f(); + int a; +}; + +struct B1 : A { }; +struct B2 : A { }; + +struct C { virtual void c(); }; + +// CHECK-14: Vtable for 'Test7::D' (10 entries). +// CHECK-14-NEXT: 0 | offset_to_top (0) +// CHECK-14-NEXT: 1 | Test7::D RTTI +// CHECK-14-NEXT: -- (Test7::C, 0) vtable address -- +// CHECK-14-NEXT: -- (Test7::D, 0) vtable address -- +// CHECK-14-NEXT: 2 | void Test7::C::c() +// CHECK-14-NEXT: 3 | void Test7::D::f() +// CHECK-14-NEXT: 4 | offset_to_top (-8) +// CHECK-14-NEXT: 5 | Test7::D RTTI +// CHECK-14-NEXT: -- (Test7::A, 8) vtable address -- +// CHECK-14-NEXT: -- (Test7::B1, 8) vtable address -- +// CHECK-14-NEXT: 6 | void Test7::D::f() +// CHECK-14-NEXT: [this adjustment: -8 non-virtual] +// CHECK-14-NEXT: 7 | offset_to_top (-24) +// CHECK-14-NEXT: 8 | Test7::D RTTI +// CHECK-14-NEXT: -- (Test7::A, 24) vtable address -- +// CHECK-14-NEXT: -- (Test7::B2, 24) vtable address -- +// CHECK-14-NEXT: 9 | void Test7::D::f() +// CHECK-14-NEXT: [this adjustment: -24 non-virtual] +struct D : C, B1, B2 { + virtual void f(); +}; +void D::f() { } + +} + +namespace Test8 { + +// Test that we don't try to layout vtables for classes that don't have +// virtual bases or virtual member functions. + +struct A { }; + +// CHECK-15: Vtable for 'Test8::B' (3 entries). +// CHECK-15-NEXT: 0 | offset_to_top (0) +// CHECK-15-NEXT: 1 | Test8::B RTTI +// CHECK-15-NEXT: -- (Test8::B, 0) vtable address -- +// CHECK-15-NEXT: 2 | void Test8::B::f() +struct B : A { + virtual void f(); +}; +void B::f() { } + +} + +namespace Test9 { + +// Simple test of vbase offsets. + +struct A1 { int a1; }; +struct A2 { int a2; }; + +// CHECK-16: Vtable for 'Test9::B' (5 entries). +// CHECK-16-NEXT: 0 | vbase_offset (16) +// CHECK-16-NEXT: 1 | vbase_offset (12) +// CHECK-16-NEXT: 2 | offset_to_top (0) +// CHECK-16-NEXT: 3 | Test9::B RTTI +// CHECK-16-NEXT: -- (Test9::B, 0) vtable address -- +// CHECK-16-NEXT: 4 | void Test9::B::f() +struct B : virtual A1, virtual A2 { + int b; + + virtual void f(); +}; + + +void B::f() { } + +} + +namespace Test10 { + +// Test for a bug where we would not emit secondary vtables for bases +// of a primary base. +struct A1 { virtual void a1(); }; +struct A2 { virtual void a2(); }; + +// CHECK-17: Vtable for 'Test10::C' (7 entries). +// CHECK-17-NEXT: 0 | offset_to_top (0) +// CHECK-17-NEXT: 1 | Test10::C RTTI +// CHECK-17-NEXT: -- (Test10::A1, 0) vtable address -- +// CHECK-17-NEXT: -- (Test10::B, 0) vtable address -- +// CHECK-17-NEXT: -- (Test10::C, 0) vtable address -- +// CHECK-17-NEXT: 2 | void Test10::A1::a1() +// CHECK-17-NEXT: 3 | void Test10::C::f() +// CHECK-17-NEXT: 4 | offset_to_top (-8) +// CHECK-17-NEXT: 5 | Test10::C RTTI +// CHECK-17-NEXT: -- (Test10::A2, 8) vtable address -- +// CHECK-17-NEXT: 6 | void Test10::A2::a2() +struct B : A1, A2 { + int b; +}; + +struct C : B { + virtual void f(); +}; +void C::f() { } + +} + +namespace Test11 { + +// Very simple test of vtables for virtual bases. +struct A1 { int a; }; +struct A2 { int b; }; + +struct B : A1, virtual A2 { + int b; +}; + +// CHECK-18: Vtable for 'Test11::C' (8 entries). +// CHECK-18-NEXT: 0 | vbase_offset (24) +// CHECK-18-NEXT: 1 | vbase_offset (8) +// CHECK-18-NEXT: 2 | offset_to_top (0) +// CHECK-18-NEXT: 3 | Test11::C RTTI +// CHECK-18-NEXT: -- (Test11::C, 0) vtable address -- +// CHECK-18-NEXT: 4 | void Test11::C::f() +// CHECK-18-NEXT: 5 | vbase_offset (16) +// CHECK-18-NEXT: 6 | offset_to_top (-8) +// CHECK-18-NEXT: 7 | Test11::C RTTI +struct C : virtual B { + virtual void f(); +}; +void C::f() { } + +} + +namespace Test12 { + +// Test that the right vcall offsets are generated in the right order. + +// CHECK-19: Vtable for 'Test12::B' (19 entries). +// CHECK-19-NEXT: 0 | vbase_offset (8) +// CHECK-19-NEXT: 1 | offset_to_top (0) +// CHECK-19-NEXT: 2 | Test12::B RTTI +// CHECK-19-NEXT: -- (Test12::B, 0) vtable address -- +// CHECK-19-NEXT: 3 | void Test12::B::f() +// CHECK-19-NEXT: 4 | void Test12::B::a() +// CHECK-19-NEXT: 5 | vcall_offset (32) +// CHECK-19-NEXT: 6 | vcall_offset (16) +// CHECK-19-NEXT: 7 | vcall_offset (-8) +// CHECK-19-NEXT: 8 | vcall_offset (0) +// CHECK-19-NEXT: 9 | offset_to_top (-8) +// CHECK-19-NEXT: 10 | Test12::B RTTI +// CHECK-19-NEXT: -- (Test12::A, 8) vtable address -- +// CHECK-19-NEXT: -- (Test12::A1, 8) vtable address -- +// CHECK-19-NEXT: 11 | void Test12::A1::a1() +// CHECK-19-NEXT: 12 | void Test12::B::a() +// CHECK-19-NEXT: [this adjustment: 0 non-virtual, -32 vcall offset offset] +// CHECK-19-NEXT: 13 | offset_to_top (-24) +// CHECK-19-NEXT: 14 | Test12::B RTTI +// CHECK-19-NEXT: -- (Test12::A2, 24) vtable address -- +// CHECK-19-NEXT: 15 | void Test12::A2::a2() +// CHECK-19-NEXT: 16 | offset_to_top (-40) +// CHECK-19-NEXT: 17 | Test12::B RTTI +// CHECK-19-NEXT: -- (Test12::A3, 40) vtable address -- +// CHECK-19-NEXT: 18 | void Test12::A3::a3() +struct A1 { + virtual void a1(); + int a; +}; + +struct A2 { + virtual void a2(); + int a; +}; + +struct A3 { + virtual void a3(); + int a; +}; + +struct A : A1, A2, A3 { + virtual void a(); + int i; +}; + +struct B : virtual A { + virtual void f(); + + virtual void a(); +}; +void B::f() { } + +} + +namespace Test13 { + +// Test that we don't try to emit a vtable for 'A' twice. +struct A { + virtual void f(); +}; + +struct B : virtual A { + virtual void f(); +}; + +// CHECK-20: Vtable for 'Test13::C' (6 entries). +// CHECK-20-NEXT: 0 | vbase_offset (0) +// CHECK-20-NEXT: 1 | vbase_offset (0) +// CHECK-20-NEXT: 2 | vcall_offset (0) +// CHECK-20-NEXT: 3 | offset_to_top (0) +// CHECK-20-NEXT: 4 | Test13::C RTTI +// CHECK-20-NEXT: -- (Test13::A, 0) vtable address -- +// CHECK-20-NEXT: -- (Test13::B, 0) vtable address -- +// CHECK-20-NEXT: -- (Test13::C, 0) vtable address -- +// CHECK-20-NEXT: 5 | void Test13::C::f() +struct C : virtual B, virtual A { + virtual void f(); +}; +void C::f() { } + +} + +namespace Test14 { + +// Verify that we handle A being a non-virtual base of B, which is a virtual base. + +struct A { + virtual void f(); +}; + +struct B : A { }; + +struct C : virtual B { }; + +// CHECK-21: Vtable for 'Test14::D' (5 entries). +// CHECK-21-NEXT: 0 | vbase_offset (0) +// CHECK-21-NEXT: 1 | vcall_offset (0) +// CHECK-21-NEXT: 2 | offset_to_top (0) +// CHECK-21-NEXT: 3 | Test14::D RTTI +// CHECK-21-NEXT: -- (Test14::A, 0) vtable address -- +// CHECK-21-NEXT: -- (Test14::B, 0) vtable address -- +// CHECK-21-NEXT: -- (Test14::C, 0) vtable address -- +// CHECK-21-NEXT: -- (Test14::D, 0) vtable address -- +// CHECK-21-NEXT: 4 | void Test14::D::f() +struct D : C, virtual B { + virtual void f(); +}; +void D::f() { } + +} + +namespace Test15 { + +// Test that we don't emit an extra vtable for B since it's a primary base of C. +struct A { virtual void a(); }; +struct B { virtual void b(); }; + +struct C : virtual B { }; + +// CHECK-22: Vtable for 'Test15::D' (11 entries). +// CHECK-22-NEXT: 0 | vbase_offset (8) +// CHECK-22-NEXT: 1 | vbase_offset (8) +// CHECK-22-NEXT: 2 | offset_to_top (0) +// CHECK-22-NEXT: 3 | Test15::D RTTI +// CHECK-22-NEXT: -- (Test15::A, 0) vtable address -- +// CHECK-22-NEXT: -- (Test15::D, 0) vtable address -- +// CHECK-22-NEXT: 4 | void Test15::A::a() +// CHECK-22-NEXT: 5 | void Test15::D::f() +// CHECK-22-NEXT: 6 | vbase_offset (0) +// CHECK-22-NEXT: 7 | vcall_offset (0) +// CHECK-22-NEXT: 8 | offset_to_top (-8) +// CHECK-22-NEXT: 9 | Test15::D RTTI +// CHECK-22-NEXT: -- (Test15::B, 8) vtable address -- +// CHECK-22-NEXT: -- (Test15::C, 8) vtable address -- +// CHECK-22-NEXT: 10 | void Test15::B::b() +struct D : A, virtual B, virtual C { + virtual void f(); +}; +void D::f() { } + +} + +namespace Test16 { + +// Test that destructors share vcall offsets. + +struct A { virtual ~A(); }; +struct B { virtual ~B(); }; + +struct C : A, B { virtual ~C(); }; + +// CHECK-23: Vtable for 'Test16::D' (15 entries). +// CHECK-23-NEXT: 0 | vbase_offset (8) +// CHECK-23-NEXT: 1 | offset_to_top (0) +// CHECK-23-NEXT: 2 | Test16::D RTTI +// CHECK-23-NEXT: -- (Test16::D, 0) vtable address -- +// CHECK-23-NEXT: 3 | void Test16::D::f() +// CHECK-23-NEXT: 4 | Test16::D::~D() [complete] +// CHECK-23-NEXT: 5 | Test16::D::~D() [deleting] +// CHECK-23-NEXT: 6 | vcall_offset (-8) +// CHECK-23-NEXT: 7 | offset_to_top (-8) +// CHECK-23-NEXT: 8 | Test16::D RTTI +// CHECK-23-NEXT: -- (Test16::A, 8) vtable address -- +// CHECK-23-NEXT: -- (Test16::C, 8) vtable address -- +// CHECK-23-NEXT: 9 | Test16::D::~D() [complete] +// CHECK-23-NEXT: [this adjustment: 0 non-virtual, -24 vcall offset offset] +// CHECK-23-NEXT: 10 | Test16::D::~D() [deleting] +// CHECK-23-NEXT: [this adjustment: 0 non-virtual, -24 vcall offset offset] +// CHECK-23-NEXT: 11 | offset_to_top (-16) +// CHECK-23-NEXT: 12 | Test16::D RTTI +// CHECK-23-NEXT: -- (Test16::B, 16) vtable address -- +// CHECK-23-NEXT: 13 | Test16::D::~D() [complete] +// CHECK-23-NEXT: [this adjustment: -8 non-virtual, -24 vcall offset offset] +// CHECK-23-NEXT: 14 | Test16::D::~D() [deleting] +// CHECK-23-NEXT: [this adjustment: -8 non-virtual, -24 vcall offset offset] +struct D : virtual C { + virtual void f(); +}; +void D::f() { } + +} + +namespace Test17 { + +// Test that we don't mark E::f in the C-in-E vtable as unused. +struct A { virtual void f(); }; +struct B : virtual A { virtual void f(); }; +struct C : virtual A { virtual void f(); }; +struct D : virtual B, virtual C { virtual void f(); }; + +// CHECK-24: Vtable for 'Test17::E' (13 entries). +// CHECK-24-NEXT: 0 | vbase_offset (0) +// CHECK-24-NEXT: 1 | vbase_offset (8) +// CHECK-24-NEXT: 2 | vbase_offset (0) +// CHECK-24-NEXT: 3 | vbase_offset (0) +// CHECK-24-NEXT: 4 | vcall_offset (0) +// CHECK-24-NEXT: 5 | offset_to_top (0) +// CHECK-24-NEXT: 6 | Test17::E RTTI +// CHECK-24-NEXT: -- (Test17::A, 0) vtable address -- +// CHECK-24-NEXT: -- (Test17::B, 0) vtable address -- +// CHECK-24-NEXT: -- (Test17::D, 0) vtable address -- +// CHECK-24-NEXT: -- (Test17::E, 0) vtable address -- +// CHECK-24-NEXT: 7 | void Test17::E::f() +// CHECK-24-NEXT: 8 | vbase_offset (-8) +// CHECK-24-NEXT: 9 | vcall_offset (-8) +// CHECK-24-NEXT: 10 | offset_to_top (-8) +// CHECK-24-NEXT: 11 | Test17::E RTTI +// CHECK-24-NEXT: -- (Test17::C, 8) vtable address -- +// CHECK-24-NEXT: 12 | void Test17::E::f() +// CHECK-24-NEXT: [this adjustment: 0 non-virtual, -24 vcall offset offset] +class E : virtual D { + virtual void f(); +}; +void E::f() {} + +} + +namespace Test18 { + +// Test that we compute the right 'this' adjustment offsets. + +struct A { + virtual void f(); + virtual void g(); +}; + +struct B : virtual A { + virtual void f(); +}; + +struct C : A, B { + virtual void g(); +}; + +// CHECK-25: Vtable for 'Test18::D' (24 entries). +// CHECK-25-NEXT: 0 | vbase_offset (8) +// CHECK-25-NEXT: 1 | vbase_offset (0) +// CHECK-25-NEXT: 2 | vbase_offset (0) +// CHECK-25-NEXT: 3 | vcall_offset (8) +// CHECK-25-NEXT: 4 | vcall_offset (0) +// CHECK-25-NEXT: 5 | offset_to_top (0) +// CHECK-25-NEXT: 6 | Test18::D RTTI +// CHECK-25-NEXT: -- (Test18::A, 0) vtable address -- +// CHECK-25-NEXT: -- (Test18::B, 0) vtable address -- +// CHECK-25-NEXT: -- (Test18::D, 0) vtable address -- +// CHECK-25-NEXT: 7 | void Test18::D::f() +// CHECK-25-NEXT: 8 | void Test18::C::g() +// CHECK-25-NEXT: [this adjustment: 0 non-virtual, -32 vcall offset offset] +// CHECK-25-NEXT: 9 | void Test18::D::h() +// CHECK-25-NEXT: 10 | vcall_offset (0) +// CHECK-25-NEXT: 11 | vcall_offset (-8) +// CHECK-25-NEXT: 12 | vbase_offset (-8) +// CHECK-25-NEXT: 13 | offset_to_top (-8) +// CHECK-25-NEXT: 14 | Test18::D RTTI +// CHECK-25-NEXT: -- (Test18::A, 8) vtable address -- +// CHECK-25-NEXT: -- (Test18::C, 8) vtable address -- +// CHECK-25-NEXT: 15 | void Test18::D::f() +// CHECK-25-NEXT: [this adjustment: 0 non-virtual, -32 vcall offset offset] +// CHECK-25-NEXT: 16 | void Test18::C::g() +// CHECK-25-NEXT: 17 | vbase_offset (-16) +// CHECK-25-NEXT: 18 | vcall_offset (-8) +// CHECK-25-NEXT: 19 | vcall_offset (-16) +// CHECK-25-NEXT: 20 | offset_to_top (-16) +// CHECK-25-NEXT: 21 | Test18::D RTTI +// CHECK-25-NEXT: -- (Test18::B, 16) vtable address -- +// CHECK-25-NEXT: 22 | void Test18::D::f() +// CHECK-25-NEXT: [this adjustment: -8 non-virtual, -32 vcall offset offset] +// CHECK-25-NEXT: 23 | [unused] void Test18::C::g() + +// CHECK-25: Construction vtable for ('Test18::B', 0) in 'Test18::D' (7 entries). +// CHECK-25-NEXT: 0 | vbase_offset (0) +// CHECK-25-NEXT: 1 | vcall_offset (0) +// CHECK-25-NEXT: 2 | vcall_offset (0) +// CHECK-25-NEXT: 3 | offset_to_top (0) +// CHECK-25-NEXT: 4 | Test18::B RTTI +// CHECK-25-NEXT: -- (Test18::A, 0) vtable address -- +// CHECK-25-NEXT: -- (Test18::B, 0) vtable address -- +// CHECK-25-NEXT: 5 | void Test18::B::f() +// CHECK-25-NEXT: 6 | void Test18::A::g() + +// CHECK-25: Construction vtable for ('Test18::C', 8) in 'Test18::D' (20 entries). +// CHECK-25-NEXT: 0 | vcall_offset (0) +// CHECK-25-NEXT: 1 | vcall_offset (0) +// CHECK-25-NEXT: 2 | vbase_offset (-8) +// CHECK-25-NEXT: 3 | offset_to_top (0) +// CHECK-25-NEXT: 4 | Test18::C RTTI +// CHECK-25-NEXT: -- (Test18::A, 8) vtable address -- +// CHECK-25-NEXT: -- (Test18::C, 8) vtable address -- +// CHECK-25-NEXT: 5 | void Test18::A::f() +// CHECK-25-NEXT: 6 | void Test18::C::g() +// CHECK-25-NEXT: 7 | vbase_offset (-16) +// CHECK-25-NEXT: 8 | vcall_offset (-8) +// CHECK-25-NEXT: 9 | vcall_offset (0) +// CHECK-25-NEXT: 10 | offset_to_top (-8) +// CHECK-25-NEXT: 11 | Test18::C RTTI +// CHECK-25-NEXT: -- (Test18::B, 16) vtable address -- +// CHECK-25-NEXT: 12 | void Test18::B::f() +// CHECK-25-NEXT: 13 | [unused] void Test18::C::g() +// CHECK-25-NEXT: 14 | vcall_offset (8) +// CHECK-25-NEXT: 15 | vcall_offset (16) +// CHECK-25-NEXT: 16 | offset_to_top (8) +// CHECK-25-NEXT: 17 | Test18::C RTTI +// CHECK-25-NEXT: -- (Test18::A, 0) vtable address -- +// CHECK-25-NEXT: 18 | void Test18::B::f() +// CHECK-25-NEXT: [this adjustment: 0 non-virtual, -24 vcall offset offset] +// CHECK-25-NEXT: 19 | void Test18::C::g() +// CHECK-25-NEXT: [this adjustment: 0 non-virtual, -32 vcall offset offset] + +// CHECK-25: Construction vtable for ('Test18::B', 16) in 'Test18::D' (13 entries). +// CHECK-25-NEXT: 0 | vbase_offset (-16) +// CHECK-25-NEXT: 1 | vcall_offset (-16) +// CHECK-25-NEXT: 2 | vcall_offset (0) +// CHECK-25-NEXT: 3 | offset_to_top (0) +// CHECK-25-NEXT: 4 | Test18::B RTTI +// CHECK-25-NEXT: -- (Test18::B, 16) vtable address -- +// CHECK-25-NEXT: 5 | void Test18::B::f() +// CHECK-25-NEXT: 6 | [unused] void Test18::A::g() +// CHECK-25-NEXT: 7 | vcall_offset (0) +// CHECK-25-NEXT: 8 | vcall_offset (16) +// CHECK-25-NEXT: 9 | offset_to_top (16) +// CHECK-25-NEXT: 10 | Test18::B RTTI +// CHECK-25-NEXT: -- (Test18::A, 0) vtable address -- +// CHECK-25-NEXT: 11 | void Test18::B::f() +// CHECK-25-NEXT: [this adjustment: 0 non-virtual, -24 vcall offset offset] +// CHECK-25-NEXT: 12 | void Test18::A::g() +struct D : virtual B, virtual C, virtual A +{ + virtual void f(); + virtual void h(); +}; +void D::f() {} + +} + +namespace Test19 { + +// Another 'this' adjustment test. + +struct A { + int a; + + virtual void f(); +}; + +struct B : A { + int b; + + virtual void g(); +}; + +struct C { + virtual void c(); +}; + +// CHECK-26: Vtable for 'Test19::D' (13 entries). +// CHECK-26-NEXT: 0 | vbase_offset (24) +// CHECK-26-NEXT: 1 | offset_to_top (0) +// CHECK-26-NEXT: 2 | Test19::D RTTI +// CHECK-26-NEXT: -- (Test19::C, 0) vtable address -- +// CHECK-26-NEXT: -- (Test19::D, 0) vtable address -- +// CHECK-26-NEXT: 3 | void Test19::C::c() +// CHECK-26-NEXT: 4 | void Test19::D::f() +// CHECK-26-NEXT: 5 | offset_to_top (-8) +// CHECK-26-NEXT: 6 | Test19::D RTTI +// CHECK-26-NEXT: -- (Test19::A, 8) vtable address -- +// CHECK-26-NEXT: -- (Test19::B, 8) vtable address -- +// CHECK-26-NEXT: 7 | void Test19::D::f() +// CHECK-26-NEXT: [this adjustment: -8 non-virtual] +// CHECK-26-NEXT: 8 | void Test19::B::g() +// CHECK-26-NEXT: 9 | vcall_offset (-24) +// CHECK-26-NEXT: 10 | offset_to_top (-24) +// CHECK-26-NEXT: 11 | Test19::D RTTI +// CHECK-26-NEXT: -- (Test19::A, 24) vtable address -- +// CHECK-26-NEXT: 12 | void Test19::D::f() +// CHECK-26-NEXT: [this adjustment: 0 non-virtual, -24 vcall offset offset] +struct D : C, B, virtual A { + virtual void f(); +}; +void D::f() { } + +} + +namespace Test20 { + +// pure virtual member functions should never have 'this' adjustments. + +struct A { + virtual void f() = 0; + virtual void g(); +}; + +struct B : A { }; + +// CHECK-27: Vtable for 'Test20::C' (9 entries). +// CHECK-27-NEXT: 0 | offset_to_top (0) +// CHECK-27-NEXT: 1 | Test20::C RTTI +// CHECK-27-NEXT: -- (Test20::A, 0) vtable address -- +// CHECK-27-NEXT: -- (Test20::C, 0) vtable address -- +// CHECK-27-NEXT: 2 | void Test20::C::f() [pure] +// CHECK-27-NEXT: 3 | void Test20::A::g() +// CHECK-27-NEXT: 4 | void Test20::C::h() +// CHECK-27-NEXT: 5 | offset_to_top (-8) +// CHECK-27-NEXT: 6 | Test20::C RTTI +// CHECK-27-NEXT: -- (Test20::A, 8) vtable address -- +// CHECK-27-NEXT: -- (Test20::B, 8) vtable address -- +// CHECK-27-NEXT: 7 | void Test20::C::f() [pure] +// CHECK-27-NEXT: 8 | void Test20::A::g() +struct C : A, B { + virtual void f() = 0; + virtual void h(); +}; +void C::h() { } + +} + +namespace Test21 { + +// Test that we get vbase offsets right in secondary vtables. +struct A { + virtual void f(); +}; + +struct B : virtual A { }; +class C : virtual B { }; +class D : virtual C { }; + +class E : virtual C { }; + +// CHECK-28: Vtable for 'Test21::F' (16 entries). +// CHECK-28-NEXT: 0 | vbase_offset (8) +// CHECK-28-NEXT: 1 | vbase_offset (0) +// CHECK-28-NEXT: 2 | vbase_offset (0) +// CHECK-28-NEXT: 3 | vbase_offset (0) +// CHECK-28-NEXT: 4 | vbase_offset (0) +// CHECK-28-NEXT: 5 | vcall_offset (0) +// CHECK-28-NEXT: 6 | offset_to_top (0) +// CHECK-28-NEXT: 7 | Test21::F RTTI +// CHECK-28-NEXT: -- (Test21::A, 0) vtable address -- +// CHECK-28-NEXT: -- (Test21::B, 0) vtable address -- +// CHECK-28-NEXT: -- (Test21::C, 0) vtable address -- +// CHECK-28-NEXT: -- (Test21::D, 0) vtable address -- +// CHECK-28-NEXT: -- (Test21::F, 0) vtable address -- +// CHECK-28-NEXT: 8 | void Test21::F::f() +// CHECK-28-NEXT: 9 | vbase_offset (-8) +// CHECK-28-NEXT: 10 | vbase_offset (-8) +// CHECK-28-NEXT: 11 | vbase_offset (-8) +// CHECK-28-NEXT: 12 | vcall_offset (-8) +// CHECK-28-NEXT: 13 | offset_to_top (-8) +// CHECK-28-NEXT: 14 | Test21::F RTTI +// CHECK-28-NEXT: -- (Test21::E, 8) vtable address -- +// CHECK-28-NEXT: 15 | [unused] void Test21::F::f() +// +// CHECK-28: Virtual base offset offsets for 'Test21::F' (5 entries). +// CHECK-28-NEXT: Test21::A | -32 +// CHECK-28-NEXT: Test21::B | -40 +// CHECK-28-NEXT: Test21::C | -48 +// CHECK-28-NEXT: Test21::D | -56 +// CHECK-28-NEXT: Test21::E | -64 +class F : virtual D, virtual E { + virtual void f(); +}; +void F::f() { } + +} + +namespace Test22 { + +// Very simple construction vtable test. +struct V1 { + int v1; +}; + +struct V2 : virtual V1 { + int v2; +}; + +// CHECK-29: Vtable for 'Test22::C' (8 entries). +// CHECK-29-NEXT: 0 | vbase_offset (16) +// CHECK-29-NEXT: 1 | vbase_offset (12) +// CHECK-29-NEXT: 2 | offset_to_top (0) +// CHECK-29-NEXT: 3 | Test22::C RTTI +// CHECK-29-NEXT: -- (Test22::C, 0) vtable address -- +// CHECK-29-NEXT: 4 | void Test22::C::f() +// CHECK-29-NEXT: 5 | vbase_offset (-4) +// CHECK-29-NEXT: 6 | offset_to_top (-16) +// CHECK-29-NEXT: 7 | Test22::C RTTI +// CHECK-29-NEXT: -- (Test22::V2, 16) vtable address -- + +// CHECK-29: Construction vtable for ('Test22::V2', 16) in 'Test22::C' (3 entries). +// CHECK-29-NEXT: 0 | vbase_offset (-4) +// CHECK-29-NEXT: 1 | offset_to_top (0) +// CHECK-29-NEXT: 2 | Test22::V2 RTTI + +struct C : virtual V1, virtual V2 { + int c; + virtual void f(); +}; +void C::f() { } + +} + +namespace Test23 { + +struct A { + int a; +}; + +struct B : virtual A { + int b; +}; + +struct C : A, virtual B { + int c; +}; + +// CHECK-30: Vtable for 'Test23::D' (7 entries). +// CHECK-30-NEXT: 0 | vbase_offset (20) +// CHECK-30-NEXT: 1 | vbase_offset (24) +// CHECK-30-NEXT: 2 | offset_to_top (0) +// CHECK-30-NEXT: 3 | Test23::D RTTI +// CHECK-30-NEXT: -- (Test23::C, 0) vtable address -- +// CHECK-30-NEXT: -- (Test23::D, 0) vtable address -- +// CHECK-30-NEXT: 4 | vbase_offset (-4) +// CHECK-30-NEXT: 5 | offset_to_top (-24) +// CHECK-30-NEXT: 6 | Test23::D RTTI +// CHECK-30-NEXT: -- (Test23::B, 24) vtable address -- + +// CHECK-30: Construction vtable for ('Test23::C', 0) in 'Test23::D' (7 entries). +// CHECK-30-NEXT: 0 | vbase_offset (20) +// CHECK-30-NEXT: 1 | vbase_offset (24) +// CHECK-30-NEXT: 2 | offset_to_top (0) +// CHECK-30-NEXT: 3 | Test23::C RTTI +// CHECK-30-NEXT: -- (Test23::C, 0) vtable address -- +// CHECK-30-NEXT: 4 | vbase_offset (-4) +// CHECK-30-NEXT: 5 | offset_to_top (-24) +// CHECK-30-NEXT: 6 | Test23::C RTTI +// CHECK-30-NEXT: -- (Test23::B, 24) vtable address -- + +// CHECK-30: Construction vtable for ('Test23::B', 24) in 'Test23::D' (3 entries). +// CHECK-30-NEXT: 0 | vbase_offset (-4) +// CHECK-30-NEXT: 1 | offset_to_top (0) +// CHECK-30-NEXT: 2 | Test23::B RTTI +// CHECK-30-NEXT: -- (Test23::B, 24) vtable address -- + +struct D : virtual A, virtual B, C { + int d; + + void f(); +}; +void D::f() { } + D d; +} + +namespace Test24 { + +// Another construction vtable test. + +struct A { + virtual void f(); +}; + +struct B : virtual A { }; +struct C : virtual A { }; + +// CHECK-31: Vtable for 'Test24::D' (10 entries). +// CHECK-31-NEXT: 0 | vbase_offset (0) +// CHECK-31-NEXT: 1 | vcall_offset (0) +// CHECK-31-NEXT: 2 | offset_to_top (0) +// CHECK-31-NEXT: 3 | Test24::D RTTI +// CHECK-31-NEXT: -- (Test24::A, 0) vtable address -- +// CHECK-31-NEXT: -- (Test24::B, 0) vtable address -- +// CHECK-31-NEXT: -- (Test24::D, 0) vtable address -- +// CHECK-31-NEXT: 4 | void Test24::D::f() +// CHECK-31-NEXT: 5 | vbase_offset (-8) +// CHECK-31-NEXT: 6 | vcall_offset (-8) +// CHECK-31-NEXT: 7 | offset_to_top (-8) +// CHECK-31-NEXT: 8 | Test24::D RTTI +// CHECK-31-NEXT: -- (Test24::C, 8) vtable address -- +// CHECK-31-NEXT: 9 | [unused] void Test24::D::f() + +// CHECK-31: Construction vtable for ('Test24::B', 0) in 'Test24::D' (5 entries). +// CHECK-31-NEXT: 0 | vbase_offset (0) +// CHECK-31-NEXT: 1 | vcall_offset (0) +// CHECK-31-NEXT: 2 | offset_to_top (0) +// CHECK-31-NEXT: 3 | Test24::B RTTI +// CHECK-31-NEXT: -- (Test24::A, 0) vtable address -- +// CHECK-31-NEXT: -- (Test24::B, 0) vtable address -- +// CHECK-31-NEXT: 4 | void Test24::A::f() + +// CHECK-31: Construction vtable for ('Test24::C', 8) in 'Test24::D' (9 entries). +// CHECK-31-NEXT: 0 | vbase_offset (-8) +// CHECK-31-NEXT: 1 | vcall_offset (-8) +// CHECK-31-NEXT: 2 | offset_to_top (0) +// CHECK-31-NEXT: 3 | Test24::C RTTI +// CHECK-31-NEXT: -- (Test24::C, 8) vtable address -- +// CHECK-31-NEXT: 4 | [unused] void Test24::A::f() +// CHECK-31-NEXT: 5 | vcall_offset (0) +// CHECK-31-NEXT: 6 | offset_to_top (8) +// CHECK-31-NEXT: 7 | Test24::C RTTI +// CHECK-31-NEXT: -- (Test24::A, 0) vtable address -- +// CHECK-31-NEXT: 8 | void Test24::A::f() +struct D : B, C { + virtual void f(); +}; +void D::f() { } + +} + +namespace Test25 { + +// This mainly tests that we don't assert on this class hierarchy. + +struct V { + virtual void f(); +}; + +struct A : virtual V { }; +struct B : virtual V { }; + +// CHECK-32: Vtable for 'Test25::C' (11 entries). +// CHECK-32-NEXT: 0 | vbase_offset (0) +// CHECK-32-NEXT: 1 | vcall_offset (0) +// CHECK-32-NEXT: 2 | offset_to_top (0) +// CHECK-32-NEXT: 3 | Test25::C RTTI +// CHECK-32-NEXT: -- (Test25::A, 0) vtable address -- +// CHECK-32-NEXT: -- (Test25::C, 0) vtable address -- +// CHECK-32-NEXT: -- (Test25::V, 0) vtable address -- +// CHECK-32-NEXT: 4 | void Test25::V::f() +// CHECK-32-NEXT: 5 | void Test25::C::g() +// CHECK-32-NEXT: 6 | vbase_offset (-8) +// CHECK-32-NEXT: 7 | vcall_offset (-8) +// CHECK-32-NEXT: 8 | offset_to_top (-8) +// CHECK-32-NEXT: 9 | Test25::C RTTI +// CHECK-32-NEXT: -- (Test25::B, 8) vtable address -- +// CHECK-32-NEXT: 10 | [unused] void Test25::V::f() + +// CHECK-32: Construction vtable for ('Test25::A', 0) in 'Test25::C' (5 entries). +// CHECK-32-NEXT: 0 | vbase_offset (0) +// CHECK-32-NEXT: 1 | vcall_offset (0) +// CHECK-32-NEXT: 2 | offset_to_top (0) +// CHECK-32-NEXT: 3 | Test25::A RTTI +// CHECK-32-NEXT: -- (Test25::A, 0) vtable address -- +// CHECK-32-NEXT: -- (Test25::V, 0) vtable address -- +// CHECK-32-NEXT: 4 | void Test25::V::f() + +// CHECK-32: Construction vtable for ('Test25::B', 8) in 'Test25::C' (9 entries). +// CHECK-32-NEXT: 0 | vbase_offset (-8) +// CHECK-32-NEXT: 1 | vcall_offset (-8) +// CHECK-32-NEXT: 2 | offset_to_top (0) +// CHECK-32-NEXT: 3 | Test25::B RTTI +// CHECK-32-NEXT: -- (Test25::B, 8) vtable address -- +// CHECK-32-NEXT: 4 | [unused] void Test25::V::f() +// CHECK-32-NEXT: 5 | vcall_offset (0) +// CHECK-32-NEXT: 6 | offset_to_top (8) +// CHECK-32-NEXT: 7 | Test25::B RTTI +// CHECK-32-NEXT: -- (Test25::V, 0) vtable address -- +// CHECK-32-NEXT: 8 | void Test25::V::f() +struct C : A, virtual V, B { + virtual void g(); +}; +void C::g() { } + +} + +namespace Test26 { + +// Test that we generate the right number of entries in the C-in-D construction vtable, and that +// we don't mark A::a as unused. + +struct A { + virtual void a(); +}; + +struct B { + virtual void c(); +}; + +struct C : virtual A { + virtual void b(); +}; + +// CHECK-33: Vtable for 'Test26::D' (15 entries). +// CHECK-33-NEXT: 0 | vbase_offset (8) +// CHECK-33-NEXT: 1 | vbase_offset (8) +// CHECK-33-NEXT: 2 | vbase_offset (0) +// CHECK-33-NEXT: 3 | vcall_offset (0) +// CHECK-33-NEXT: 4 | offset_to_top (0) +// CHECK-33-NEXT: 5 | Test26::D RTTI +// CHECK-33-NEXT: -- (Test26::B, 0) vtable address -- +// CHECK-33-NEXT: -- (Test26::D, 0) vtable address -- +// CHECK-33-NEXT: 6 | void Test26::B::c() +// CHECK-33-NEXT: 7 | void Test26::D::d() +// CHECK-33-NEXT: 8 | vcall_offset (0) +// CHECK-33-NEXT: 9 | vbase_offset (0) +// CHECK-33-NEXT: 10 | vcall_offset (0) +// CHECK-33-NEXT: 11 | offset_to_top (-8) +// CHECK-33-NEXT: 12 | Test26::D RTTI +// CHECK-33-NEXT: -- (Test26::A, 8) vtable address -- +// CHECK-33-NEXT: -- (Test26::C, 8) vtable address -- +// CHECK-33-NEXT: 13 | void Test26::A::a() +// CHECK-33-NEXT: 14 | void Test26::C::b() + +// CHECK-33: Construction vtable for ('Test26::C', 8) in 'Test26::D' (7 entries). +// CHECK-33-NEXT: 0 | vcall_offset (0) +// CHECK-33-NEXT: 1 | vbase_offset (0) +// CHECK-33-NEXT: 2 | vcall_offset (0) +// CHECK-33-NEXT: 3 | offset_to_top (0) +// CHECK-33-NEXT: 4 | Test26::C RTTI +// CHECK-33-NEXT: -- (Test26::A, 8) vtable address -- +// CHECK-33-NEXT: -- (Test26::C, 8) vtable address -- +// CHECK-33-NEXT: 5 | void Test26::A::a() +// CHECK-33-NEXT: 6 | void Test26::C::b() +class D : virtual B, virtual C { + virtual void d(); +}; +void D::d() { } + +} + +namespace Test27 { + +// Test that we don't generate a secondary vtable for C in the D-in-E vtable, since +// C doesn't have any virtual bases. + +struct A { + virtual void a(); +}; + +struct B { + virtual void b(); +}; + +struct C { + virtual void c(); +}; + +struct D : A, virtual B, C { + virtual void d(); +}; + +// CHECK-34: Vtable for 'Test27::E' (13 entries). +// CHECK-34-NEXT: 0 | vbase_offset (16) +// CHECK-34-NEXT: 1 | offset_to_top (0) +// CHECK-34-NEXT: 2 | Test27::E RTTI +// CHECK-34-NEXT: -- (Test27::A, 0) vtable address -- +// CHECK-34-NEXT: -- (Test27::D, 0) vtable address -- +// CHECK-34-NEXT: -- (Test27::E, 0) vtable address -- +// CHECK-34-NEXT: 3 | void Test27::A::a() +// CHECK-34-NEXT: 4 | void Test27::D::d() +// CHECK-34-NEXT: 5 | void Test27::E::e() +// CHECK-34-NEXT: 6 | offset_to_top (-8) +// CHECK-34-NEXT: 7 | Test27::E RTTI +// CHECK-34-NEXT: -- (Test27::C, 8) vtable address -- +// CHECK-34-NEXT: 8 | void Test27::C::c() +// CHECK-34-NEXT: 9 | vcall_offset (0) +// CHECK-34-NEXT: 10 | offset_to_top (-16) +// CHECK-34-NEXT: 11 | Test27::E RTTI +// CHECK-34-NEXT: -- (Test27::B, 16) vtable address -- +// CHECK-34-NEXT: 12 | void Test27::B::b() + +// CHECK-34: Construction vtable for ('Test27::D', 0) in 'Test27::E' (9 entries). +// CHECK-34-NEXT: 0 | vbase_offset (16) +// CHECK-34-NEXT: 1 | offset_to_top (0) +// CHECK-34-NEXT: 2 | Test27::D RTTI +// CHECK-34-NEXT: -- (Test27::A, 0) vtable address -- +// CHECK-34-NEXT: -- (Test27::D, 0) vtable address -- +// CHECK-34-NEXT: 3 | void Test27::A::a() +// CHECK-34-NEXT: 4 | void Test27::D::d() +// CHECK-34-NEXT: 5 | vcall_offset (0) +// CHECK-34-NEXT: 6 | offset_to_top (-16) +// CHECK-34-NEXT: 7 | Test27::D RTTI +// CHECK-34-NEXT: -- (Test27::B, 16) vtable address -- +// CHECK-34-NEXT: 8 | void Test27::B::b() +struct E : D { + virtual void e(); +}; +void E::e() { } + +} + +namespace Test28 { + +// Check that we do include the vtable for B in the D-in-E construction vtable, since +// B is a base class of a virtual base (C). + +struct A { + virtual void a(); +}; + +struct B { + virtual void b(); +}; + +struct C : A, B { + virtual void c(); +}; + +struct D : virtual C { +}; + +// CHECK-35: Vtable for 'Test28::E' (14 entries). +// CHECK-35-NEXT: 0 | vbase_offset (8) +// CHECK-35-NEXT: 1 | offset_to_top (0) +// CHECK-35-NEXT: 2 | Test28::E RTTI +// CHECK-35-NEXT: -- (Test28::D, 0) vtable address -- +// CHECK-35-NEXT: -- (Test28::E, 0) vtable address -- +// CHECK-35-NEXT: 3 | void Test28::E::e() +// CHECK-35-NEXT: 4 | vcall_offset (8) +// CHECK-35-NEXT: 5 | vcall_offset (0) +// CHECK-35-NEXT: 6 | vcall_offset (0) +// CHECK-35-NEXT: 7 | offset_to_top (-8) +// CHECK-35-NEXT: 8 | Test28::E RTTI +// CHECK-35-NEXT: -- (Test28::A, 8) vtable address -- +// CHECK-35-NEXT: -- (Test28::C, 8) vtable address -- +// CHECK-35-NEXT: 9 | void Test28::A::a() +// CHECK-35-NEXT: 10 | void Test28::C::c() +// CHECK-35-NEXT: 11 | offset_to_top (-16) +// CHECK-35-NEXT: 12 | Test28::E RTTI +// CHECK-35-NEXT: -- (Test28::B, 16) vtable address -- +// CHECK-35-NEXT: 13 | void Test28::B::b() + +// CHECK-35: Construction vtable for ('Test28::D', 0) in 'Test28::E' (13 entries). +// CHECK-35-NEXT: 0 | vbase_offset (8) +// CHECK-35-NEXT: 1 | offset_to_top (0) +// CHECK-35-NEXT: 2 | Test28::D RTTI +// CHECK-35-NEXT: -- (Test28::D, 0) vtable address -- +// CHECK-35-NEXT: 3 | vcall_offset (8) +// CHECK-35-NEXT: 4 | vcall_offset (0) +// CHECK-35-NEXT: 5 | vcall_offset (0) +// CHECK-35-NEXT: 6 | offset_to_top (-8) +// CHECK-35-NEXT: 7 | Test28::D RTTI +// CHECK-35-NEXT: -- (Test28::A, 8) vtable address -- +// CHECK-35-NEXT: -- (Test28::C, 8) vtable address -- +// CHECK-35-NEXT: 8 | void Test28::A::a() +// CHECK-35-NEXT: 9 | void Test28::C::c() +// CHECK-35-NEXT: 10 | offset_to_top (-16) +// CHECK-35-NEXT: 11 | Test28::D RTTI +// CHECK-35-NEXT: -- (Test28::B, 16) vtable address -- +// CHECK-35-NEXT: 12 | void Test28::B::b() +struct E : D { + virtual void e(); +}; +void E::e() { } + +} + +namespace Test29 { + +// Test that the covariant return thunk for B::f will have a virtual 'this' adjustment, +// matching gcc. + +struct V1 { }; +struct V2 : virtual V1 { }; + +struct A { + virtual V1 *f(); +}; + +// CHECK-36: Vtable for 'Test29::B' (6 entries). +// CHECK-36-NEXT: 0 | vbase_offset (0) +// CHECK-36-NEXT: 1 | vcall_offset (0) +// CHECK-36-NEXT: 2 | offset_to_top (0) +// CHECK-36-NEXT: 3 | Test29::B RTTI +// CHECK-36-NEXT: -- (Test29::A, 0) vtable address -- +// CHECK-36-NEXT: -- (Test29::B, 0) vtable address -- +// CHECK-36-NEXT: 4 | Test29::V2 *Test29::B::f() +// CHECK-36-NEXT: [return adjustment: 0 non-virtual, -24 vbase offset offset] +// CHECK-36-NEXT: [this adjustment: 0 non-virtual, -24 vcall offset offset] +// CHECK-36-NEXT: 5 | Test29::V2 *Test29::B::f() +struct B : virtual A { + virtual V2 *f(); +}; +V2 *B::f() { return 0; } + +} + +namespace Test30 { + +// Test that we don't assert when generating a vtable for F. +struct A { }; + +struct B : virtual A { + int i; +}; + +struct C { + virtual void f(); +}; + +struct D : virtual C, B { }; +struct E : virtual D { }; + +struct F : E { + virtual void f(); +}; +void F::f() { } + +} + +namespace Test31 { + +// Test that we don't add D::f twice to the primary vtable. +struct A { + int a; +}; + +struct B { + virtual void f(); +}; + +struct C : A, virtual B { + virtual void f(); +}; + +// CHECK-37: Vtable for 'Test31::D' (11 entries). +// CHECK-37-NEXT: 0 | vbase_offset (0) +// CHECK-37-NEXT: 1 | vbase_offset (8) +// CHECK-37-NEXT: 2 | vcall_offset (0) +// CHECK-37-NEXT: 3 | offset_to_top (0) +// CHECK-37-NEXT: 4 | Test31::D RTTI +// CHECK-37-NEXT: -- (Test31::B, 0) vtable address -- +// CHECK-37-NEXT: -- (Test31::D, 0) vtable address -- +// CHECK-37-NEXT: 5 | void Test31::D::f() +// CHECK-37-NEXT: 6 | vbase_offset (-8) +// CHECK-37-NEXT: 7 | vcall_offset (-8) +// CHECK-37-NEXT: 8 | offset_to_top (-8) +// CHECK-37-NEXT: 9 | Test31::D RTTI +// CHECK-37-NEXT: -- (Test31::C, 8) vtable address -- +// CHECK-37-NEXT: 10 | void Test31::D::f() +// CHECK-37-NEXT: [this adjustment: 0 non-virtual, -24 vcall offset offset] +struct D : virtual C { + virtual void f(); +}; +void D::f() { } + +} + +namespace Test32 { + +// Check that we correctly lay out the virtual bases of 'Test32::D'. + +struct A { + virtual void f(); +}; + +struct B : virtual A { }; +struct C : A, virtual B { }; +struct D : virtual B { }; + +// CHECK-38: Virtual base offset offsets for 'Test32::E' (3 entries). +// CHECK-38-NEXT: Test32::A | -32 +// CHECK-38-NEXT: Test32::B | -24 +// CHECK-38-NEXT: Test32::D | -40 +struct E : C, virtual D { + virtual void f(); +}; +void E::f() { } + +} + +namespace Test33 { + +// Test that we don't emit too many vcall offsets in 'Test32::F'. + +struct A { + virtual void a(); +}; + +struct B { + virtual void b(); +}; + +struct C : virtual A, virtual B { + virtual void c(); +}; + +struct D : virtual C { }; + +struct E : A, D { + virtual void e(); +}; + +// CHECK-39: Vtable for 'Test33::F' (30 entries). +// CHECK-39-NEXT: 0 | vbase_offset (24) +// CHECK-39-NEXT: 1 | vbase_offset (16) +// CHECK-39-NEXT: 2 | vbase_offset (16) +// CHECK-39-NEXT: 3 | vbase_offset (8) +// CHECK-39-NEXT: 4 | offset_to_top (0) +// CHECK-39-NEXT: 5 | Test33::F RTTI +// CHECK-39-NEXT: -- (Test33::A, 0) vtable address -- +// CHECK-39-NEXT: -- (Test33::F, 0) vtable address -- +// CHECK-39-NEXT: 6 | void Test33::A::a() +// CHECK-39-NEXT: 7 | void Test33::F::f() +// CHECK-39-NEXT: 8 | vcall_offset (0) +// CHECK-39-NEXT: 9 | vcall_offset (0) +// CHECK-39-NEXT: 10 | vbase_offset (16) +// CHECK-39-NEXT: 11 | vbase_offset (8) +// CHECK-39-NEXT: 12 | vbase_offset (8) +// CHECK-39-NEXT: 13 | offset_to_top (-8) +// CHECK-39-NEXT: 14 | Test33::F RTTI +// CHECK-39-NEXT: -- (Test33::A, 8) vtable address -- +// CHECK-39-NEXT: -- (Test33::E, 8) vtable address -- +// CHECK-39-NEXT: 15 | void Test33::A::a() +// CHECK-39-NEXT: 16 | void Test33::E::e() +// CHECK-39-NEXT: 17 | vbase_offset (0) +// CHECK-39-NEXT: 18 | vcall_offset (0) +// CHECK-39-NEXT: 19 | vbase_offset (8) +// CHECK-39-NEXT: 20 | vbase_offset (0) +// CHECK-39-NEXT: 21 | vcall_offset (0) +// CHECK-39-NEXT: 22 | offset_to_top (-16) +// CHECK-39-NEXT: 23 | Test33::F RTTI +// CHECK-39-NEXT: -- (Test33::A, 16) vtable address -- +// CHECK-39-NEXT: -- (Test33::C, 16) vtable address -- +// CHECK-39-NEXT: -- (Test33::D, 16) vtable address -- +// CHECK-39-NEXT: 24 | void Test33::A::a() +// CHECK-39-NEXT: 25 | void Test33::C::c() +// CHECK-39-NEXT: 26 | vcall_offset (0) +// CHECK-39-NEXT: 27 | offset_to_top (-24) +// CHECK-39-NEXT: 28 | Test33::F RTTI +// CHECK-39-NEXT: -- (Test33::B, 24) vtable address -- +// CHECK-39-NEXT: 29 | void Test33::B::b() +struct F : virtual E, A { + virtual void f(); +}; +void F::f() { } + +} + +namespace Test34 { + +// Test that we lay out the construction vtable for 'Test34::E' in 'Test34::F' correctly. + +struct A { + virtual void a(); +}; +struct B : virtual A { }; + +struct C : B, A { + virtual void c(); +}; + +struct D : A, C { }; + +struct E : virtual D { + virtual void e(); +}; + +// CHECK-40: Construction vtable for ('Test34::E', 0) in 'Test34::F' (22 entries). +// CHECK-40-NEXT: 0 | vbase_offset (0) +// CHECK-40-NEXT: 1 | vbase_offset (8) +// CHECK-40-NEXT: 2 | vcall_offset (0) +// CHECK-40-NEXT: 3 | offset_to_top (0) +// CHECK-40-NEXT: 4 | Test34::E RTTI +// CHECK-40-NEXT: -- (Test34::A, 0) vtable address -- +// CHECK-40-NEXT: -- (Test34::E, 0) vtable address -- +// CHECK-40-NEXT: 5 | void Test34::A::a() +// CHECK-40-NEXT: 6 | void Test34::E::e() +// CHECK-40-NEXT: 7 | vcall_offset (8) +// CHECK-40-NEXT: 8 | vcall_offset (0) +// CHECK-40-NEXT: 9 | vbase_offset (-8) +// CHECK-40-NEXT: 10 | offset_to_top (-8) +// CHECK-40-NEXT: 11 | Test34::E RTTI +// CHECK-40-NEXT: -- (Test34::A, 8) vtable address -- +// CHECK-40-NEXT: -- (Test34::D, 8) vtable address -- +// CHECK-40-NEXT: 12 | void Test34::A::a() +// CHECK-40-NEXT: 13 | vbase_offset (-16) +// CHECK-40-NEXT: 14 | vcall_offset (-16) +// CHECK-40-NEXT: 15 | offset_to_top (-16) +// CHECK-40-NEXT: 16 | Test34::E RTTI +// CHECK-40-NEXT: -- (Test34::B, 16) vtable address -- +// CHECK-40-NEXT: -- (Test34::C, 16) vtable address -- +// CHECK-40-NEXT: 17 | [unused] void Test34::A::a() +// CHECK-40-NEXT: 18 | void Test34::C::c() +// CHECK-40-NEXT: 19 | offset_to_top (-24) +// CHECK-40-NEXT: 20 | Test34::E RTTI +// CHECK-40-NEXT: -- (Test34::A, 24) vtable address -- +// CHECK-40-NEXT: 21 | void Test34::A::a() +struct F : E { + virtual void f(); +}; +void F::f() { } + +} + +namespace Test35 { + +// Test that we lay out the virtual bases of 'Test35::H' in the correct order. + +struct A { + virtual void a(); + + int i; +}; + +struct B : virtual A { + virtual void b(); +}; + +struct C { + virtual void c(); +}; + +struct D : C, virtual B { + virtual void d(); +}; + +struct E : D { + virtual void e(); + + bool b; +}; + +struct F : virtual D { }; +struct G : virtual E { }; + +// CHECK-41: Vtable for 'Test35::H' (32 entries). +// CHECK-41-NEXT: 0 | vbase_offset (32) +// CHECK-41-NEXT: 1 | vbase_offset (0) +// CHECK-41-NEXT: 2 | vcall_offset (0) +// CHECK-41-NEXT: 3 | vcall_offset (0) +// CHECK-41-NEXT: 4 | vbase_offset (16) +// CHECK-41-NEXT: 5 | vbase_offset (8) +// CHECK-41-NEXT: 6 | offset_to_top (0) +// CHECK-41-NEXT: 7 | Test35::H RTTI +// CHECK-41-NEXT: -- (Test35::C, 0) vtable address -- +// CHECK-41-NEXT: -- (Test35::D, 0) vtable address -- +// CHECK-41-NEXT: -- (Test35::F, 0) vtable address -- +// CHECK-41-NEXT: -- (Test35::H, 0) vtable address -- +// CHECK-41-NEXT: 8 | void Test35::C::c() +// CHECK-41-NEXT: 9 | void Test35::D::d() +// CHECK-41-NEXT: 10 | void Test35::H::h() +// CHECK-41-NEXT: 11 | vbase_offset (0) +// CHECK-41-NEXT: 12 | vbase_offset (24) +// CHECK-41-NEXT: 13 | vcall_offset (0) +// CHECK-41-NEXT: 14 | vbase_offset (8) +// CHECK-41-NEXT: 15 | offset_to_top (-8) +// CHECK-41-NEXT: 16 | Test35::H RTTI +// CHECK-41-NEXT: -- (Test35::B, 8) vtable address -- +// CHECK-41-NEXT: -- (Test35::G, 8) vtable address -- +// CHECK-41-NEXT: 17 | void Test35::B::b() +// CHECK-41-NEXT: 18 | vcall_offset (0) +// CHECK-41-NEXT: 19 | offset_to_top (-16) +// CHECK-41-NEXT: 20 | Test35::H RTTI +// CHECK-41-NEXT: -- (Test35::A, 16) vtable address -- +// CHECK-41-NEXT: 21 | void Test35::A::a() +// CHECK-41-NEXT: 22 | vcall_offset (0) +// CHECK-41-NEXT: 23 | vcall_offset (0) +// CHECK-41-NEXT: 24 | vcall_offset (0) +// CHECK-41-NEXT: 25 | vbase_offset (-16) +// CHECK-41-NEXT: 26 | vbase_offset (-24) +// CHECK-41-NEXT: 27 | offset_to_top (-32) +// CHECK-41-NEXT: 28 | Test35::H RTTI +// CHECK-41-NEXT: -- (Test35::C, 32) vtable address -- +// CHECK-41-NEXT: -- (Test35::D, 32) vtable address -- +// CHECK-41-NEXT: -- (Test35::E, 32) vtable address -- +// CHECK-41-NEXT: 29 | void Test35::C::c() +// CHECK-41-NEXT: 30 | void Test35::D::d() +// CHECK-41-NEXT: 31 | void Test35::E::e() + +// CHECK-41: Virtual base offset offsets for 'Test35::H' (4 entries). +// CHECK-41-NEXT: Test35::A | -32 +// CHECK-41-NEXT: Test35::B | -24 +// CHECK-41-NEXT: Test35::D | -56 +// CHECK-41-NEXT: Test35::E | -64 +struct H : F, G { + virtual void h(); +}; +void H::h() { } + +} + +namespace Test36 { + +// Test that we don't mark B::f as unused in the vtable for D. + +struct A { + virtual void f(); +}; + +struct B : virtual A { }; + +struct C : virtual A { + virtual void f(); +}; + +// CHECK-42: Vtable for 'Test36::D' (12 entries). +// CHECK-42-NEXT: 0 | vbase_offset (8) +// CHECK-42-NEXT: 1 | vbase_offset (8) +// CHECK-42-NEXT: 2 | vcall_offset (0) +// CHECK-42-NEXT: 3 | offset_to_top (0) +// CHECK-42-NEXT: 4 | Test36::D RTTI +// CHECK-42-NEXT: -- (Test36::C, 0) vtable address -- +// CHECK-42-NEXT: -- (Test36::D, 0) vtable address -- +// CHECK-42-NEXT: 5 | void Test36::C::f() +// CHECK-42-NEXT: 6 | void Test36::D::g() +// CHECK-42-NEXT: 7 | vbase_offset (0) +// CHECK-42-NEXT: 8 | vcall_offset (-8) +// CHECK-42-NEXT: 9 | offset_to_top (-8) +// CHECK-42-NEXT: 10 | Test36::D RTTI +// CHECK-42-NEXT: -- (Test36::A, 8) vtable address -- +// CHECK-42-NEXT: -- (Test36::B, 8) vtable address -- +// CHECK-42-NEXT: 11 | void Test36::C::f() +// CHECK-42-NEXT: [this adjustment: 0 non-virtual, -24 vcall offset offset] +struct D : virtual B, C { + virtual void g(); +}; +void D::g() { } + +} + +namespace Test37 { + +// Test that we give C::f the right vtable index. (PR9660). +struct A { + virtual A* f() = 0; +}; + +struct B : virtual A { + virtual B* f(); +}; + +// CHECK-43: VTable indices for 'Test37::C' (1 entries). +// CHECK-43-NEXT: 1 | Test37::C *Test37::C::f() +struct C : B { + virtual C* f(); +}; + +C* C::f() { return 0; } + +} + +// rdar://problem/10959710 +namespace Test38 { + struct A { + virtual void *foo(); + virtual const void *foo() const; + }; + + // CHECK-44: Vtable for 'Test38::B' (7 entries). + // CHECK-44-NEXT: 0 | vbase_offset (0) + // CHECK-44-NEXT: 1 | vcall_offset (0) + // CHECK-44-NEXT: 2 | vcall_offset (0) + // CHECK-44-NEXT: 3 | offset_to_top (0) + // CHECK-44-NEXT: 4 | Test38::B RTTI + // CHECK-44-NEXT: -- (Test38::A, 0) vtable address -- + // CHECK-44-NEXT: -- (Test38::B, 0) vtable address -- + // CHECK-44-NEXT: 5 | void *Test38::B::foo() + // CHECK-44-NEXT: 6 | const void *Test38::B::foo() const + class B : virtual public A { + void *foo(); + const void *foo() const; + }; + + void *B::foo() { return 0; } +} |