1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fapple-kext -fno-rtti -disable-O0-optnone -emit-llvm -o - %s | FileCheck %s
2
3 // CHECK: @_ZTV5TemplIiE = internal unnamed_addr constant { [7 x i8*] } { [7 x i8*] [i8* null, i8* null, i8* bitcast (void (%struct.Templ*)* @_ZN5TemplIiED1Ev to i8*), i8* bitcast (void (%struct.Templ*)* @_ZN5TemplIiED0Ev to i8*), i8* bitcast (void (%struct.Templ*)* @_ZN5TemplIiE1fEv to i8*), i8* bitcast (void (%struct.Templ*)* @_ZN5TemplIiE1gEv to i8*), i8* null] }
4
5 struct B1 {
6 virtual ~B1();
7 };
8
~B1()9 B1::~B1() {}
10
DELETE(B1 * pb1)11 void DELETE(B1 *pb1) {
12 pb1->B1::~B1();
13 }
14 // CHECK-LABEL: define void @_ZN2B1D0Ev
15 // CHECK: [[T1:%.*]] = load void (%struct.B1*)*, void (%struct.B1*)** getelementptr inbounds (void (%struct.B1*)*, void (%struct.B1*)** bitcast ({ [5 x i8*] }* @_ZTV2B1 to void (%struct.B1*)**), i64 2)
16 // CHECK-NEXT: call void [[T1]](%struct.B1* [[T2:%.*]])
17 // CHECK-LABEL: define void @_Z6DELETEP2B1
18 // CHECK: [[T3:%.*]] = load void (%struct.B1*)*, void (%struct.B1*)** getelementptr inbounds (void (%struct.B1*)*, void (%struct.B1*)** bitcast ({ [5 x i8*] }* @_ZTV2B1 to void (%struct.B1*)**), i64 2)
19 // CHECK-NEXT: call void [[T3]](%struct.B1* [[T4:%.*]])
20
21 template<class T>
22 struct Templ {
23 virtual ~Templ(); // Out-of-line so that the destructor doesn't cause a vtable
fTempl24 virtual void f() {}
gTempl25 virtual void g() {}
26 };
27 template<class T>
28 struct SubTempl : public Templ<T> {
~SubTemplSubTempl29 virtual ~SubTempl() {} // override
fSubTempl30 virtual void f() {} // override
gSubTempl31 virtual void g() {} // override
32 };
33
f(SubTempl<int> * t)34 void f(SubTempl<int>* t) {
35 // Qualified calls go through the (qualified) vtable in apple-kext mode.
36 // Since t's this pointer points to SubTempl's vtable, the call needs
37 // to load Templ<int>'s vtable. Hence, Templ<int>::g needs to be
38 // instantiated in this TU, for it's referenced by the vtable.
39 // (This happens only in apple-kext mode; elsewhere virtual calls can always
40 // use the vtable pointer off this instead of having to load the vtable
41 // symbol.)
42 t->Templ::~Templ();
43 }
44
45 // CHECK: getelementptr inbounds (void (%struct.Templ*)*, void (%struct.Templ*)** bitcast ({ [7 x i8*] }* @_ZTV5TemplIiE to void (%struct.Templ*)**), i64 2)
46 // CHECK: declare void @_ZN5TemplIiED0Ev(%struct.Templ*)
47 // CHECK: define internal void @_ZN5TemplIiE1fEv(%struct.Templ* %this)
48 // CHECK: define internal void @_ZN5TemplIiE1gEv(%struct.Templ* %this)
49