1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fapple-kext -emit-llvm -o - %s | FileCheck %s
2
3 // CHECK: @_ZTV5TemplIiE = internal unnamed_addr constant { [5 x i8*] } { [5 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI5TemplIiE to i8*), i8* bitcast (void (%struct.Templ*)* @_ZN5TemplIiE1fEv to i8*), i8* bitcast (void (%struct.Templ*)* @_ZN5TemplIiE1gEv to i8*), i8* null] }
4
5 struct Base {
6 virtual void abc(void) const;
7 };
8
abc(void) const9 void Base::abc(void) const {}
10
FUNC(Base * p)11 void FUNC(Base* p) {
12 p->Base::abc();
13 }
14
15 // CHECK: getelementptr inbounds (void (%struct.Base*)*, void (%struct.Base*)** bitcast ({ [4 x i8*] }* @_ZTV4Base to void (%struct.Base*)**), i64 2)
16 // CHECK-NOT: call void @_ZNK4Base3abcEv
17
18 template<class T>
19 struct Templ {
fTempl20 virtual void f() {}
gTempl21 virtual void g() {}
22 };
23 template<class T>
24 struct SubTempl : public Templ<T> {
fSubTempl25 virtual void f() {} // override
gSubTempl26 virtual void g() {} // override
27 };
28
f(SubTempl<int> * t)29 void f(SubTempl<int>* t) {
30 // Qualified calls go through the (qualified) vtable in apple-kext mode.
31 // Since t's this pointer points to SubTempl's vtable, the call needs
32 // to load Templ<int>'s vtable. Hence, Templ<int>::g needs to be
33 // instantiated in this TU, for it's referenced by the vtable.
34 // (This happens only in apple-kext mode; elsewhere virtual calls can always
35 // use the vtable pointer off this instead of having to load the vtable
36 // symbol.)
37 t->Templ::f();
38 }
39
40 // CHECK: getelementptr inbounds (void (%struct.Templ*)*, void (%struct.Templ*)** bitcast ({ [5 x i8*] }* @_ZTV5TemplIiE to void (%struct.Templ*)**), i64 2)
41 // CHECK: define internal void @_ZN5TemplIiE1fEv(%struct.Templ* %this)
42 // CHECK: define internal void @_ZN5TemplIiE1gEv(%struct.Templ* %this)
43