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: @_ZTVSd = linkonce_odr unnamed_addr constant
7 // CHECK: @_ZTTSd = 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: @_ZTVSo = linkonce_odr unnamed_addr constant
11 // CHECK: @_ZTTSo = linkonce_odr unnamed_addr constant
12 // CHECK: @_ZTVSi = linkonce_odr unnamed_addr constant
13 // CHECK: @_ZTTSi = linkonce_odr unnamed_addr constant
14 
15 namespace std {
16   struct A { A(); };
17 
18   // CHECK-LABEL: define void @_ZNSt1AC2Ev(%"struct.std::A"* %this) unnamed_addr
19   // CHECK-LABEL: define void @_ZNSt1AC1Ev(%"struct.std::A"* %this) unnamed_addr
20   A::A() { }
21 };
22 
23 namespace std {
24   template<typename> struct allocator { };
25 }
26 
27 // CHECK-LABEL: define void @_Z1fSaIcESaIiE
28 void f(std::allocator<char>, std::allocator<int>) { }
29 
30 namespace std {
31   template<typename, typename, typename> struct basic_string { };
32 }
33 
34 // CHECK-LABEL: define void @_Z1fSbIcciE
35 void f(std::basic_string<char, char, int>) { }
36 
37 namespace std {
38   template<typename> struct char_traits { };
39 
40   typedef std::basic_string<char, std::char_traits<char>, std::allocator<char> > string;
41 }
42 
43 // CHECK: _Z1fSs
44 void f(std::string) { }
45 
46 namespace std {
47   template<typename, typename> struct basic_ios {
48     basic_ios(int);
49     virtual ~basic_ios();
50   };
51   template<typename charT, typename traits = char_traits<charT> >
52   struct basic_istream : virtual public basic_ios<charT, traits> {
53     basic_istream(int x) : basic_ios<charT, traits>(x), stored(x) { }
54 
55     int stored;
56   };
57   template<typename charT, typename traits = char_traits<charT> >
58   struct basic_ostream : virtual public basic_ios<charT, traits> {
59     basic_ostream(int x) : basic_ios<charT, traits>(x), stored(x) { }
60 
61     float stored;
62   };
63 
64   template<typename charT, typename traits = char_traits<charT> >
65     struct basic_iostream : public basic_istream<charT, traits>,
66                             public basic_ostream<charT, traits> {
67     basic_iostream(int x) : basic_istream<charT, traits>(x),
68                             basic_ostream<charT, traits>(x),
69                             basic_ios<charT, traits>(x) { }
70   };
71 }
72 
73 // CHECK: _Z1fSi
74 void f(std::basic_istream<char, std::char_traits<char> >) { }
75 
76 // CHECK: _Z1fSo
77 void f(std::basic_ostream<char, std::char_traits<char> >) { }
78 
79 // CHECK: _Z1fSd
80 void f(std::basic_iostream<char, std::char_traits<char> >) { }
81 
82 extern "C++" {
83 namespace std
84 {
85   typedef void (*terminate_handler) ();
86 
87   // CHECK: _ZSt13set_terminatePFvvE
88   terminate_handler set_terminate(terminate_handler) { return 0; }
89 }
90 }
91 
92 // Make sure we don't treat the following like std::string
93 // CHECK-LABEL: define void @_Z1f12basic_stringIcSt11char_traitsIcESaIcEE
94 template<typename, typename, typename> struct basic_string { };
95 typedef basic_string<char, std::char_traits<char>, std::allocator<char> > not_string;
96 void f(not_string) { }
97 
98 // Manglings for instantiations caused by this function are at the
99 // top of the test.
100 void create_streams() {
101   std::basic_iostream<char> bio(17);
102 }
103 
104 // Make sure we don't mangle 'std' as 'St' here.
105 namespace N {
106   namespace std {
107     struct A { void f(); };
108 
109     // CHECK-LABEL: define void @_ZN1N3std1A1fEv
110     void A::f() { }
111   }
112 }
113