mirror of
https://github.com/Gericom/teak-llvm.git
synced 2025-06-25 06:18:56 -04:00
8d58513da4
We currently use i32 (...)** as the type of the vptr field in the LLVM struct type. LLVM's GlobalOpt prefers any bitcasts to be on the side of the data being stored rather than on the pointer being stored to. Reviewers: majnemer Differential Revision: http://reviews.llvm.org/D5916 llvm-svn: 223267
201 lines
4.0 KiB
C++
201 lines
4.0 KiB
C++
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
|
|
|
|
// See Test9 for test description.
|
|
// CHECK: @_ZTTN5Test91BE = linkonce_odr unnamed_addr constant
|
|
namespace Test1 {
|
|
|
|
// Check that we don't initialize the vtable pointer in A::~A(), since the destructor body is trivial.
|
|
struct A {
|
|
virtual void f();
|
|
~A();
|
|
};
|
|
|
|
// CHECK-LABEL: define void @_ZN5Test11AD2Ev
|
|
// CHECK-NOT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*]* @_ZTVN5Test11AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
|
|
A::~A()
|
|
{
|
|
}
|
|
|
|
}
|
|
|
|
namespace Test2 {
|
|
|
|
// Check that we do initialize the vtable pointer in A::~A() since the destructor body isn't trivial.
|
|
struct A {
|
|
virtual void f();
|
|
~A();
|
|
};
|
|
|
|
// CHECK-LABEL: define void @_ZN5Test21AD2Ev
|
|
// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*]* @_ZTVN5Test21AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
|
|
A::~A() {
|
|
f();
|
|
}
|
|
|
|
}
|
|
|
|
namespace Test3 {
|
|
|
|
// Check that we don't initialize the vtable pointer in A::~A(), since the destructor body is trivial
|
|
// and Field's destructor body is also trivial.
|
|
struct Field {
|
|
~Field() { }
|
|
};
|
|
|
|
struct A {
|
|
virtual void f();
|
|
~A();
|
|
|
|
Field field;
|
|
};
|
|
|
|
// CHECK-LABEL: define void @_ZN5Test31AD2Ev
|
|
// CHECK-NOT: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*]* @_ZTVN5Test31AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
|
|
A::~A() {
|
|
|
|
}
|
|
|
|
}
|
|
|
|
namespace Test4 {
|
|
|
|
// Check that we do initialize the vtable pointer in A::~A(), since Field's destructor body
|
|
// isn't trivial.
|
|
|
|
void f();
|
|
|
|
struct Field {
|
|
~Field() { f(); }
|
|
};
|
|
|
|
struct A {
|
|
virtual void f();
|
|
~A();
|
|
|
|
Field field;
|
|
};
|
|
|
|
// CHECK-LABEL: define void @_ZN5Test41AD2Ev
|
|
// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*]* @_ZTVN5Test41AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
|
|
A::~A()
|
|
{
|
|
}
|
|
|
|
}
|
|
|
|
namespace Test5 {
|
|
|
|
// Check that we do initialize the vtable pointer in A::~A(), since Field's destructor isn't
|
|
// available in this translation unit.
|
|
|
|
struct Field {
|
|
~Field();
|
|
};
|
|
|
|
struct A {
|
|
virtual void f();
|
|
~A();
|
|
|
|
Field field;
|
|
};
|
|
|
|
// CHECK-LABEL: define void @_ZN5Test51AD2Ev
|
|
// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*]* @_ZTVN5Test51AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
|
|
A::~A()
|
|
{
|
|
}
|
|
|
|
}
|
|
|
|
namespace Test6 {
|
|
|
|
// Check that we do initialize the vtable pointer in A::~A(), since Field has a member
|
|
// variable with a non-trivial destructor body.
|
|
|
|
struct NonTrivialDestructorBody {
|
|
~NonTrivialDestructorBody();
|
|
};
|
|
|
|
struct Field {
|
|
NonTrivialDestructorBody nonTrivialDestructorBody;
|
|
};
|
|
|
|
struct A {
|
|
virtual void f();
|
|
~A();
|
|
|
|
Field field;
|
|
};
|
|
|
|
// CHECK-LABEL: define void @_ZN5Test61AD2Ev
|
|
// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*]* @_ZTVN5Test61AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
|
|
A::~A()
|
|
{
|
|
}
|
|
|
|
}
|
|
|
|
namespace Test7 {
|
|
|
|
// Check that we do initialize the vtable pointer in A::~A(), since Field has a base
|
|
// class with a non-trivial destructor body.
|
|
|
|
struct NonTrivialDestructorBody {
|
|
~NonTrivialDestructorBody();
|
|
};
|
|
|
|
struct Field : NonTrivialDestructorBody { };
|
|
|
|
struct A {
|
|
virtual void f();
|
|
~A();
|
|
|
|
Field field;
|
|
};
|
|
|
|
// CHECK-LABEL: define void @_ZN5Test71AD2Ev
|
|
// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*]* @_ZTVN5Test71AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
|
|
A::~A()
|
|
{
|
|
}
|
|
|
|
}
|
|
|
|
namespace Test8 {
|
|
|
|
// Check that we do initialize the vtable pointer in A::~A(), since Field has a virtual base
|
|
// class with a non-trivial destructor body.
|
|
|
|
struct NonTrivialDestructorBody {
|
|
~NonTrivialDestructorBody();
|
|
};
|
|
|
|
struct Field : virtual NonTrivialDestructorBody { };
|
|
|
|
struct A {
|
|
virtual void f();
|
|
~A();
|
|
|
|
Field field;
|
|
};
|
|
|
|
// CHECK-LABEL: define void @_ZN5Test81AD2Ev
|
|
// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ([3 x i8*]* @_ZTVN5Test81AE, i64 0, i64 2) to i32 (...)**), i32 (...)***
|
|
A::~A()
|
|
{
|
|
}
|
|
|
|
}
|
|
|
|
namespace Test9 {
|
|
|
|
// Check that we emit a VTT for B, even though we don't initialize the vtable pointer in the destructor.
|
|
struct A { virtual ~A () { } };
|
|
struct B : virtual A {};
|
|
struct C : virtual B {
|
|
virtual ~C();
|
|
};
|
|
C::~C() {}
|
|
|
|
}
|