clang/test/CodeGenCXX/mangle-subst-std.cpp

   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
   7 // CHECK: @_ZTVSd = linkonce_odr unnamed_addr constant
   8 // CHECK: @_ZTTSd = linkonce_odr unnamed_addr constant
   9 // CHECK: @_ZTCSd0_Si = linkonce_odr unnamed_addr constant
  10 // CHECK: @_ZTCSd16_So = linkonce_odr unnamed_addr constant
  11 // CHECK: @_ZTVSi = linkonce_odr unnamed_addr constant
  12 // CHECK: @_ZTTSi = linkonce_odr unnamed_addr constant
  13 // CHECK: @_ZTVSo = linkonce_odr unnamed_addr constant
  14 // CHECK: @_ZTTSo = linkonce_odr unnamed_addr constant
  15
  16 namespace std {
  17   struct A { A(); };
  18
  19   // CHECK-LABEL: define{{.*}} void @_ZNSt1AC2Ev(%"struct.std::A"* {{[^,]*}} %this) unnamed_addr
  20   // CHECK-LABEL: define{{.*}} void @_ZNSt1AC1Ev(%"struct.std::A"* {{[^,]*}} %this) unnamed_addr
  21   A::A() { }
  22 };
  23
  24 namespace std {
  25   template<typename> struct allocator { };
  26 }
  27
  28 // CHECK-LABEL: define{{.*}} void @_Z1fSaIcESaIiE
  29 void f(std::allocator<char>, std::allocator<int>) { }
  30
  31 namespace std {
  32   template<typename, typename, typename> struct basic_string { };
  33 }
  34
  35 // CHECK-LABEL: define{{.*}} void @_Z1fSbIcciE
  36 void f(std::basic_string<char, char, int>) { }
  37
  38 namespace std {
  39   template<typename> struct char_traits { };
  40
  41   typedef std::basic_string<char, std::char_traits<char>, std::allocator<char> > string;
  42 }
  43
  44 // CHECK: _Z1fSs
  45 void f(std::string) { }
  46
  47 namespace std {
  48   template<typename, typename> struct basic_ios {
  49     basic_ios(int);
  50     virtual ~basic_ios();
  51   };
  52   template<typename charT, typename traits = char_traits<charT> >
  53   struct basic_istream : virtual public basic_ios<charT, traits> {
  54     basic_istream(int x) : basic_ios<charT, traits>(x), stored(x) { }
  55
  56     int stored;
  57   };
  58   template<typename charT, typename traits = char_traits<charT> >
  59   struct basic_ostream : virtual public basic_ios<charT, traits> {
  60     basic_ostream(int x) : basic_ios<charT, traits>(x), stored(x) { }
  61
  62     float stored;
  63   };
  64
  65   template<typename charT, typename traits = char_traits<charT> >
  66     struct basic_iostream : public basic_istream<charT, traits>,
  67                             public basic_ostream<charT, traits> {
  68     basic_iostream(int x) : basic_istream<charT, traits>(x),
  69                             basic_ostream<charT, traits>(x),
  70                             basic_ios<charT, traits>(x) { }
  71   };
  72 }
  73
  74 // CHECK: _Z1fSi
  75 void f(std::basic_istream<char, std::char_traits<char> >) { }
  76
  77 // CHECK: _Z1fSo
  78 void f(std::basic_ostream<char, std::char_traits<char> >) { }
  79
  80 // CHECK: _Z1fSd
  81 void f(std::basic_iostream<char, std::char_traits<char> >) { }
  82
  83 extern "C++" {
  84 namespace std
  85 {
  86   typedef void (*terminate_handler) ();
  87
  88   // CHECK: _ZSt13set_terminatePFvvE
  89   terminate_handler set_terminate(terminate_handler) { return 0; }
  90 }
  91 }
  92
  93 // Make sure we don't treat the following like std::string
  94 // CHECK-LABEL: define{{.*}} void @_Z1f12basic_stringIcSt11char_traitsIcESaIcEE
  95 template<typename, typename, typename> struct basic_string { };
  96 typedef basic_string<char, std::char_traits<char>, std::allocator<char> > not_string;
  97 void f(not_string) { }
  98
  99 // Manglings for instantiations caused by this function are at the
 100 // top of the test.
 101 void create_streams() {
 102   std::basic_iostream<char> bio(17);
 103 }
 104
 105 // Make sure we don't mangle 'std' as 'St' here.
 106 namespace N {
 107   namespace std {
 108     struct A { void f(); };
 109
 110     // CHECK-LABEL: define{{.*}} void @_ZN1N3std1A1fEv
 111     void A::f() { }
 112   }
 113 }