mirrors/llvm-project
0
0
Fork 0
mirror of https://github.com/llvm/llvm-project.git synced 2025-04-29 11:36:07 +00:00
Code Issues Projects Releases Wiki Activity
llvm-project/clang/test/CodeGenCXX/vtable-layout.cpp
Matheus Izvekov 7c51f02eff
[clang] Implement ElaboratedType sugaring for types written bare 
Without this patch, clang will not wrap in an ElaboratedType node types written
without a keyword and nested name qualifier, which goes against the intent that
we should produce an AST which retains enough details to recover how things are
written.

The lack of this sugar is incompatible with the intent of the type printer
default policy, which is to print types as written, but to fall back and print
them fully qualified when they are desugared.

An ElaboratedTypeLoc without keyword / NNS uses no storage by itself, but still
requires pointer alignment due to pre-existing bug in the TypeLoc buffer
handling.

---

Troubleshooting list to deal with any breakage seen with this patch:

1) The most likely effect one would see by this patch is a change in how
   a type is printed. The type printer will, by design and default,
   print types as written. There are customization options there, but
   not that many, and they mainly apply to how to print a type that we
   somehow failed to track how it was written. This patch fixes a
   problem where we failed to distinguish between a type
   that was written without any elaborated-type qualifiers,
   such as a 'struct'/'class' tags and name spacifiers such as 'std::',
   and one that has been stripped of any 'metadata' that identifies such,
   the so called canonical types.
   Example:
   ```
   namespace foo {
     struct A {};
     A a;
   };
   ```
   If one were to print the type of `foo::a`, prior to this patch, this
   would result in `foo::A`. This is how the type printer would have,
   by default, printed the canonical type of A as well.
   As soon as you add any name qualifiers to A, the type printer would
   suddenly start accurately printing the type as written. This patch
   will make it print it accurately even when written without
   qualifiers, so we will just print `A` for the initial example, as
   the user did not really write that `foo::` namespace qualifier.

2) This patch could expose a bug in some AST matcher. Matching types
   is harder to get right when there is sugar involved. For example,
   if you want to match a type against being a pointer to some type A,
   then you have to account for getting a type that is sugar for a
   pointer to A, or being a pointer to sugar to A, or both! Usually
   you would get the second part wrong, and this would work for a
   very simple test where you don't use any name qualifiers, but
   you would discover is broken when you do. The usual fix is to
   either use the matcher which strips sugar, which is annoying
   to use as for example if you match an N level pointer, you have
   to put N+1 such matchers in there, beginning to end and between
   all those levels. But in a lot of cases, if the property you want
   to match is present in the canonical type, it's easier and faster
   to just match on that... This goes with what is said in 1), if
   you want to match against the name of a type, and you want
   the name string to be something stable, perhaps matching on
   the name of the canonical type is the better choice.

3) This patch could exposed a bug in how you get the source range of some
   TypeLoc. For some reason, a lot of code is using getLocalSourceRange(),
   which only looks at the given TypeLoc node. This patch introduces a new,
   and more common TypeLoc node which contains no source locations on itself.
   This is not an inovation here, and some other, more rare TypeLoc nodes could
   also have this property, but if you use getLocalSourceRange on them, it's not
   going to return any valid locations, because it doesn't have any. The right fix
   here is to always use getSourceRange() or getBeginLoc/getEndLoc which will dive
   into the inner TypeLoc to get the source range if it doesn't find it on the
   top level one. You can use getLocalSourceRange if you are really into
   micro-optimizations and you have some outside knowledge that the TypeLocs you are
   dealing with will always include some source location.

4) Exposed a bug somewhere in the use of the normal clang type class API, where you
   have some type, you want to see if that type is some particular kind, you try a
   `dyn_cast` such as `dyn_cast<TypedefType>` and that fails because now you have an
   ElaboratedType which has a TypeDefType inside of it, which is what you wanted to match.
   Again, like 2), this would usually have been tested poorly with some simple tests with
   no qualifications, and would have been broken had there been any other kind of type sugar,
   be it an ElaboratedType or a TemplateSpecializationType or a SubstTemplateParmType.
   The usual fix here is to use `getAs` instead of `dyn_cast`, which will look deeper
   into the type. Or use `getAsAdjusted` when dealing with TypeLocs.
   For some reason the API is inconsistent there and on TypeLocs getAs behaves like a dyn_cast.

5) It could be a bug in this patch perhaps.

Let me know if you need any help!

Signed-off-by: Matheus Izvekov <mizvekov@gmail.com>

Differential Revision: https://reviews.llvm.org/D112374
2022-07-15 04:16:55 +02:00

1929 lines
59 KiB
C++
Raw Blame History

// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm-only -fdump-vtable-layouts > %t
// 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
// RUN: FileCheck --check-prefix=CHECK-45 %s < %t
// RUN: FileCheck --check-prefix=CHECK-46 %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()
//
// CHECK-1: VTable indices for 'Test1::A' (1 entries).
// CHECK-1-NEXT: 0 | 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 | 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 | A &Test2::A::operator=(const A &)
//
// CHECK-2: VTable indices for 'Test2::A' (7 entries).
// CHECK-2-NEXT: 0 | void Test2::A::f()
// CHECK-2-NEXT: 1 | void Test2::A::f() const
// CHECK-2-NEXT: 2 | A *Test2::A::g(int)
// CHECK-2-NEXT: 3 | Test2::A::~A() [complete]
// CHECK-2-NEXT: 4 | Test2::A::~A() [deleting]
// CHECK-2-NEXT: 5 | void Test2::A::h()
// CHECK-2-NEXT: 6 | A &Test2::A::operator=(const 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]
//
// CHECK-3: VTable indices for 'Test2::B' (4 entries).
// CHECK-3-NEXT: 0 | void Test2::B::f()
// CHECK-3-NEXT: 1 | void Test2::B::g()
// CHECK-3-NEXT: 2 | Test2::B::~B() [complete]
// CHECK-3-NEXT: 3 | Test2::B::~B() [deleting]
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()
//
// CHECK-4: VTable indices for 'Test3::A' (1 entries).
// CHECK-4-NEXT: 0 | 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()
//
// CHECK-5: VTable indices for 'Test3::B' (2 entries).
// CHECK-5-NEXT: 0 | void Test3::B::f()
// CHECK-5-NEXT: 1 | 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()
//
// CHECK-6: VTable indices for 'Test3::C' (2 entries).
// CHECK-6-NEXT: 1 | void Test3::C::g()
// CHECK-6-NEXT: 2 | 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()
//
// CHECK-7: VTable indices for 'Test3::D' (3 entries).
// CHECK-7-NEXT: 0 | void Test3::D::f()
// CHECK-7-NEXT: 1 | void Test3::D::g()
// CHECK-7-NEXT: 2 | 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 | R3 *Test4::B::f()
// CHECK-8-NEXT: [return adjustment: 4 non-virtual]
// CHECK-8-NEXT: 3 | R3 *Test4::B::f()
//
// CHECK-8: VTable indices for 'Test4::B' (1 entries).
// CHECK-8-NEXT: 1 | 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 | V2 *Test4::D::f()
// CHECK-9-NEXT: [return adjustment: 0 non-virtual, -24 vbase offset offset]
// CHECK-9-NEXT: 3 | V2 *Test4::D::f()
//
// CHECK-9: VTable indices for 'Test4::D' (1 entries).
// CHECK-9-NEXT: 1 | 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 | V3 *Test4::E::f()
// CHECK-10-NEXT: [return adjustment: 4 non-virtual, -24 vbase offset offset]
// CHECK-10-NEXT: 3 | V3 *Test4::E::f()
//
// CHECK-10: VTable indices for 'Test4::E' (1 entries).
// CHECK-10-NEXT: 1 | 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 | R3 *Test4::F::f() [pure]
// CHECK-11-NEXT: 3 | void Test4::F::g()
// CHECK-11-NEXT: 4 | R3 *Test4::F::f() [pure]
//
// CHECK-11: VTable indices for 'Test4::F' (2 entries).
// CHECK-11-NEXT: 1 | void Test4::F::g()
// CHECK-11-NEXT: 2 | R3 *Test4::F::f()
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()
//
// CHECK-12: VTable indices for 'Test5::C' (1 entries).
// CHECK-12-NEXT: 2 | void Test5::C::h()
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]
//
// CHECK-13: VTable indices for 'Test6::C' (1 entries).
// CHECK-13-NEXT: 0 | void Test6::C::f()
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]
//
// CHECK-14: VTable indices for 'Test7::D' (1 entries).
// CHECK-14-NEXT: 1 | void Test7::D::f()
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()
//
// CHECK-15: VTable indices for 'Test8::B' (1 entries).
// CHECK-15-NEXT: 0 | 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()
//
// CHECK-16: VTable indices for 'Test9::B' (1 entries).
// CHECK-16-NEXT: 0 | 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()
//
// CHECK-17: VTable indices for 'Test10::C' (1 entries).
// CHECK-17-NEXT: 1 | void Test10::C::f()
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
//
// CHECK-18: VTable indices for 'Test11::C' (1 entries).
// CHECK-18-NEXT: 0 | void Test11::C::f()
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()
//
// CHECK-19: VTable indices for 'Test12::B' (2 entries).
// CHECK-19-NEXT: 0 | void Test12::B::f()
// CHECK-19-NEXT: 1 | void Test12::B::a()
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()
//
// CHECK-20: VTable indices for 'Test13::C' (1 entries).
// CHECK-20-NEXT: 0 | 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()
//
// CHECK-21: VTable indices for 'Test14::D' (1 entries).
// CHECK-21-NEXT: 0 | 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()
//
// CHECK-22: VTable indices for 'Test15::D' (1 entries).
// CHECK-22-NEXT: 1 | void Test15::D::f()
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]
//
// CHECK-23: VTable indices for 'Test16::D' (3 entries).
// CHECK-23-NEXT: 0 | void Test16::D::f()
// CHECK-23-NEXT: 1 | Test16::D::~D() [complete]
// CHECK-23-NEXT: 2 | Test16::D::~D() [deleting]
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]
//
// CHECK-24: VTable indices for 'Test17::E' (1 entries).
// CHECK-24-NEXT: 0 | void Test17::E::f()
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: VTable indices for 'Test18::D' (2 entries).
// CHECK-25-NEXT: 0 | void Test18::D::f()
// CHECK-25-NEXT: 2 | void Test18::D::h()
// 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]
//
// CHECK-26: VTable indices for 'Test19::D' (1 entries).
// CHECK-26-NEXT: 1 | void Test19::D::f()
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()
//
// CHECK-27: VTable indices for 'Test20::C' (2 entries).
// CHECK-27-NEXT: 0 | void Test20::C::f()
// CHECK-27-NEXT: 2 | void Test20::C::h()
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
//
// CHECK-28: VTable indices for 'Test21::F' (1 entries).
// CHECK-28-NEXT: 0 | void Test21::F::f()
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: VTable indices for 'Test22::C' (1 entries).
// CHECK-29-NEXT: 0 | void Test22::C::f()
// 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: VTable indices for 'Test24::D' (1 entries).
// CHECK-31-NEXT: 0 | 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: VTable indices for 'Test25::C' (1 entries).
// CHECK-32-NEXT: 1 | void Test25::C::g()
// 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: VTable indices for 'Test26::D' (1 entries).
// CHECK-33-NEXT: 1 | void Test26::D::d()
// 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: VTable indices for 'Test27::E' (1 entries).
// CHECK-34-NEXT: 2 | void Test27::E::e()
// 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: VTable indices for 'Test28::E' (1 entries).
// CHECK-35-NEXT: 0 | void Test28::E::e()
// 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 | 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 | V2 *Test29::B::f()
//
// CHECK-36: VTable indices for 'Test29::B' (1 entries).
// CHECK-36-NEXT: 1 | 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]
//
// CHECK-37: VTable indices for 'Test31::D' (1 entries).
// CHECK-37-NEXT: 0 | void Test31::D::f()
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()
//
// CHECK-39: VTable indices for 'Test33::F' (1 entries).
// CHECK-39-NEXT: 1 | void Test33::F::f()
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
//
// CHECK-41: VTable indices for 'Test35::H' (1 entries).
// CHECK-41-NEXT: 2 | void Test35::H::h()
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]
//
// CHECK-42: VTable indices for 'Test36::D' (1 entries).
// CHECK-42-NEXT: 1 | void Test36::D::g()
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 | 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
//
// CHECK-44: VTable indices for 'Test38::B' (2 entries).
// CHECK-44-NEXT: 0 | void *Test38::B::foo()
// CHECK-44-NEXT: 1 | const void *Test38::B::foo() const
class B : virtual public A {
void *foo();
const void *foo() const;
};
void *B::foo() { return 0; }
}
namespace Test39 {
struct A {
virtual void foo() = delete;
};
// CHECK-45: Vtable for 'Test39::B' (4 entries).
// CHECK-45-NEXT: 0 | offset_to_top (0)
// CHECK-45-NEXT: 1 | Test39::B RTTI
// CHECK-45-NEXT: -- (Test39::A, 0) vtable address --
// CHECK-45-NEXT: -- (Test39::B, 0) vtable address --
// CHECK-45-NEXT: 2 | void Test39::A::foo() [deleted]
// CHECK-45-NEXT: 3 | void Test39::B::foo2()
//
// CHECK-45: VTable indices for 'Test39::B' (1 entries).
// CHECK-45-NEXT: 1 | void Test39::B::foo2()
struct B: A {
virtual void foo2();
};
void B::foo2() {
}
}
namespace Test40 {
struct A {
virtual void foo() = 0;
};
struct B : public A {
virtual void foo();
};
struct C: public B {
// CHECK-46: VTable indices for 'Test40::C' (8 entries).
// CHECK-46-NEXT: 1 | int Test40::C::f(int)
// CHECK-46-NEXT: 2 | int Test40::C::f()
// CHECK-46-NEXT: 3 | int Test40::C::g(int)
// CHECK-46-NEXT: 4 | int Test40::C::g()
// CHECK-46-NEXT: 5 | int Test40::C::h(int)
// CHECK-46-NEXT: 6 | int Test40::C::h()
// CHECK-46-NEXT: 7 | int Test40::C::i(int)
// CHECK-46-NEXT: 8 | int Test40::C::i()
virtual int f(int);
virtual int f();
virtual int g(int);
virtual int g();
virtual int h(int);
virtual int h();
virtual int i(int);
virtual int i();
};
// Force C's vtable to be generated.
int C::f() { return 1; }
class D : C {};
D d;
}
Reference in New Issue View Git Blame Copy Permalink