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// RUN: %clang_cc1 %s -emit-llvm -o - -mconstructor-aliases | FileCheck %s
// CHECK: @_ZN5test01AD1Ev = alias {{.*}} @_ZN5test01AD2Ev
// CHECK: @_ZN5test11MD2Ev = alias {{.*}} @_ZN5test11AD2Ev
// CHECK: @_ZN5test11ND2Ev = alias {{.*}} @_ZN5test11AD2Ev
// CHECK: @_ZN5test11OD2Ev = alias {{.*}} @_ZN5test11AD2Ev
// CHECK: @_ZN5test11SD2Ev = alias bitcast {{.*}} @_ZN5test11AD2Ev
struct A {
int a;
~A();
};
// Base with non-trivial destructor
struct B : A {
~B();
};
B::~B() { }
// Field with non-trivial destructor
struct C {
A a;
~C();
};
C::~C() { }
// PR5084
template<typename T>
class A1 {
~A1();
};
template<> A1<char>::~A1();
// PR5529
namespace PR5529 {
struct A {
~A();
};
A::~A() { }
struct B : A {
virtual ~B();
};
B::~B() {}
}
// FIXME: there's a known problem in the codegen here where, if one
// destructor throws, the remaining destructors aren't run. Fix it,
// then make this code check for it.
namespace test0 {
void foo();
struct VBase { ~VBase(); };
struct Base { ~Base(); };
struct Member { ~Member(); };
struct A : Base {
Member M;
~A();
};
// The function-try-block won't suppress -mconstructor-aliases here.
A::~A() try { } catch (int i) {}
// complete destructor alias tested above
// CHECK: define void @_ZN5test01AD2Ev
// CHECK: invoke void @_ZN5test06MemberD1Ev
// CHECK: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]]
// CHECK: invoke void @_ZN5test04BaseD2Ev
// CHECK: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]]
struct B : Base, virtual VBase {
Member M;
~B();
};
B::~B() try { } catch (int i) {}
// It will suppress the delegation optimization here, though.
// CHECK: define void @_ZN5test01BD1Ev
// CHECK: invoke void @_ZN5test06MemberD1Ev
// CHECK: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]]
// CHECK: invoke void @_ZN5test04BaseD2Ev
// CHECK: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]]
// CHECK: invoke void @_ZN5test05VBaseD2Ev
// CHECK: unwind label [[VBASE_UNWIND:%[a-zA-Z0-9.]+]]
// CHECK: define void @_ZN5test01BD2Ev
// CHECK: invoke void @_ZN5test06MemberD1Ev
// CHECK: unwind label [[MEM_UNWIND:%[a-zA-Z0-9.]+]]
// CHECK: invoke void @_ZN5test04BaseD2Ev
// CHECK: unwind label [[BASE_UNWIND:%[a-zA-Z0-9.]+]]
}
// Test base-class aliasing.
namespace test1 {
struct A { ~A(); char ***m; }; // non-trivial destructor
struct B { ~B(); }; // non-trivial destructor
struct Empty { }; // trivial destructor, empty
struct NonEmpty { int x; }; // trivial destructor, non-empty
struct M : A { ~M(); };
M::~M() {} // alias tested above
struct N : A, Empty { ~N(); };
N::~N() {} // alias tested above
struct O : Empty, A { ~O(); };
O::~O() {} // alias tested above
struct P : NonEmpty, A { ~P(); };
P::~P() {} // CHECK: define void @_ZN5test11PD2Ev
struct Q : A, B { ~Q(); };
Q::~Q() {} // CHECK: define void @_ZN5test11QD2Ev
struct R : A { ~R(); };
R::~R() { A a; } // CHECK: define void @_ZN5test11RD2Ev
struct S : A { ~S(); int x; };
S::~S() {} // alias tested above
struct T : A { ~T(); B x; };
T::~T() {} // CHECK: define void @_ZN5test11TD2Ev
// The VTT parameter prevents this. We could still make this work
// for calling conventions that are safe against extra parameters.
struct U : A, virtual B { ~U(); };
U::~U() {} // CHECK: define void @_ZN5test11UD2Ev
}
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