1 // RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin9 | FileCheck %s
2 
3 // Check mangling of Vtables, VTTs, and construction vtables that
4 // involve standard substitutions.
5 
6 // CHECK: @_ZTTSd = linkonce_odr unnamed_addr constant
7 // CHECK: @_ZTVSd = linkonce_odr unnamed_addr constant
8 // CHECK: @_ZTCSd0_Si = linkonce_odr unnamed_addr constant
9 // CHECK: @_ZTCSd16_So = linkonce_odr unnamed_addr constant
10 // CHECK: @_ZTTSo = linkonce_odr unnamed_addr constant
11 // CHECK: @_ZTVSo = linkonce_odr unnamed_addr constant
12 // CHECK: @_ZTTSi = linkonce_odr unnamed_addr constant
13 // CHECK: @_ZTVSi = linkonce_odr unnamed_addr constant
14 namespace std {
15   struct A { A(); };
16 
17   // CHECK: define void @_ZNSt1AC1Ev(%"struct.N::std::A"* %this) unnamed_addr
18   // CHECK: define void @_ZNSt1AC2Ev(%"struct.N::std::A"* %this) unnamed_addr
19   A::A() { }
20 };
21 
22 namespace std {
23   template<typename> struct allocator { };
24 }
25 
26 // CHECK: define void @_Z1fSaIcESaIiE
27 void f(std::allocator<char>, std::allocator<int>) { }
28 
29 namespace std {
30   template<typename, typename, typename> struct basic_string { };
31 }
32 
33 // CHECK: define void @_Z1fSbIcciE
34 void f(std::basic_string<char, char, int>) { }
35 
36 namespace std {
37   template<typename> struct char_traits { };
38 
39   typedef std::basic_string<char, std::char_traits<char>, std::allocator<char> > string;
40 }
41 
42 // CHECK: _Z1fSs
43 void f(std::string) { }
44 
45 namespace std {
46   template<typename, typename> struct basic_ios {
47     basic_ios(int);
48     virtual ~basic_ios();
49   };
50   template<typename charT, typename traits = char_traits<charT> >
51   struct basic_istream : virtual public basic_ios<charT, traits> {
52     basic_istream(int x) : basic_ios<charT, traits>(x), stored(x) { }
53 
54     int stored;
55   };
56   template<typename charT, typename traits = char_traits<charT> >
57   struct basic_ostream : virtual public basic_ios<charT, traits> {
58     basic_ostream(int x) : basic_ios<charT, traits>(x), stored(x) { }
59 
60     float stored;
61   };
62 
63   template<typename charT, typename traits = char_traits<charT> >
64     struct basic_iostream : public basic_istream<charT, traits>,
65                             public basic_ostream<charT, traits> {
66     basic_iostream(int x) : basic_istream<charT, traits>(x),
67                             basic_ostream<charT, traits>(x),
68                             basic_ios<charT, traits>(x) { }
69   };
70 }
71 
72 // CHECK: _Z1fSi
73 void f(std::basic_istream<char, std::char_traits<char> >) { }
74 
75 // CHECK: _Z1fSo
76 void f(std::basic_ostream<char, std::char_traits<char> >) { }
77 
78 // CHECK: _Z1fSd
79 void f(std::basic_iostream<char, std::char_traits<char> >) { }
80 
81 extern "C++" {
82 namespace std
83 {
84   typedef void (*terminate_handler) ();
85 
86   // CHECK: _ZSt13set_terminatePFvvE
87   terminate_handler set_terminate(terminate_handler) { return 0; }
88 }
89 }
90 
91 // Make sure we don't treat the following like std::string
92 // CHECK: define void @_Z1f12basic_stringIcSt11char_traitsIcESaIcEE
93 template<typename, typename, typename> struct basic_string { };
94 typedef basic_string<char, std::char_traits<char>, std::allocator<char> > not_string;
95 void f(not_string) { }
96 
97 // Manglings for instantiations caused by this function are at the
98 // top of the test.
99 void create_streams() {
100   std::basic_iostream<char> bio(17);
101 }
102 
103 // Make sure we don't mangle 'std' as 'St' here.
104 namespace N {
105   namespace std {
106     struct A { void f(); };
107 
108     // CHECK: define void @_ZN1N3std1A1fEv
109     void A::f() { }
110   }
111 }
112