1 // RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
2 
3 struct basic_ios{~basic_ios(); };
4 
5 template<typename _CharT> struct basic_istream : virtual public basic_ios {
6   virtual ~basic_istream(){}
7 };
8 
9 template<typename _CharT> struct basic_iostream : public basic_istream<_CharT>
10 {
11   virtual ~basic_iostream(){}
12 };
13 
14 basic_iostream<char> res;
15 
16 int main() {
17 }
18 
19 // basic_iostream's complete dtor calls its base dtor, then its
20 // virtual base's dtor.
21 //  CHECK: define linkonce_odr {{.*}} @_ZN14basic_iostreamIcED1Ev(%struct.basic_iostream* {{.*}}%this) unnamed_addr
22 //  CHECK: call {{.*}} @_ZN14basic_iostreamIcED2Ev
23 //  CHECK: call {{.*}} @_ZN9basic_iosD2Ev
24 
25 // basic_iostream's base dtor calls its non-virtual base dtor.
26 //  CHECK: define linkonce_odr {{.*}} @_ZN14basic_iostreamIcED2Ev(%struct.basic_iostream* {{.*}}%this, i8** %vtt) unnamed_addr
27 //  CHECK: call {{.*}} @_ZN13basic_istreamIcED2Ev
28 //  CHECK: }
29 
30 // basic_istream's complete dtor calls the base dtor,
31 // then its virtual base's base dtor.
32 //  CHECK: define linkonce_odr {{.*}} @_ZN13basic_istreamIcED1Ev(%struct.basic_istream* {{.*}}%this) unnamed_addr
33 //  CHECK: call {{.*}} @_ZN13basic_istreamIcED2Ev
34 //  CHECK: call {{.*}} @_ZN9basic_iosD2Ev
35 
36 // basic_istream's deleting dtor calls the complete dtor, then
37 // operator delete().
38 //  CHECK: define linkonce_odr {{.*}} @_ZN13basic_istreamIcED0Ev(%struct.basic_istream* {{.*}}%this) unnamed_addr
39 //  CHECK: call {{.*}} @_ZN13basic_istreamIcED1Ev
40 //  CHECK: call {{.*}} @_ZdlPv
41 
42 // basic_iostream's deleting dtor calls its complete dtor, then
43 // operator delete().
44 //  CHECK: define linkonce_odr {{.*}} @_ZN14basic_iostreamIcED0Ev(%struct.basic_iostream* {{.*}}%this) unnamed_addr
45 //  CHECK: call {{.*}} @_ZN14basic_iostreamIcED1Ev
46 //  CHECK: call {{.*}} @_ZdlPv
47 
48 // basic_istream's base dtor is a no-op.
49 //  CHECK: define linkonce_odr {{.*}} @_ZN13basic_istreamIcED2Ev(%struct.basic_istream* {{.*}}%this, i8** %vtt) unnamed_addr
50 //  CHECK-NOT: call
51 //  CHECK: }
52