clang/test/Frontend/ftime-report-template-decl.cpp

   1 // RUN: %clang_cc1 %s -emit-llvm -o - -ftime-report  2>&1 | FileCheck %s
   2 // RUN: %clang_cc1 %s -emit-llvm -o - -fdelayed-template-parsing -DDELAYED_TEMPLATE_PARSING -ftime-report  2>&1 | FileCheck %s
   3
   4 // Template function declarations
   5 template <typename T>
   6 void foo();
   7 template <typename T, typename U>
   8 void foo();
   9
  10 // Template function definitions.
  11 template <typename T>
  12 void foo() {}
  13
  14 // Template class (forward) declarations
  15 template <typename T>
  16 struct A;
  17 template <typename T, typename U>
  18 struct b;
  19 template <typename>
  20 struct C;
  21 template <typename, typename>
  22 struct D;
  23
  24 // Forward declarations with default parameters?
  25 template <typename T = int>
  26 class X1;
  27 template <typename = int>
  28 class X2;
  29
  30 // Forward declarations w/template template parameters
  31 template <template <typename> class T>
  32 class TTP1;
  33 template <template <typename> class>
  34 class TTP2;
  35 template <template <typename X, typename Y> class T>
  36 class TTP5;
  37
  38 // Forward declarations with non-type params
  39 template <int>
  40 class NTP0;
  41 template <int N>
  42 class NTP1;
  43 template <int N = 5>
  44 class NTP2;
  45 template <int = 10>
  46 class NTP3;
  47 template <unsigned int N = 12u>
  48 class NTP4;
  49 template <unsigned int = 12u>
  50 class NTP5;
  51 template <unsigned = 15u>
  52 class NTP6;
  53 template <typename T, T Obj>
  54 class NTP7;
  55
  56 // Template class declarations
  57 template <typename T>
  58 struct A {};
  59 template <typename T, typename U>
  60 struct B {};
  61
  62 namespace PR6184 {
  63 namespace N {
  64 template <typename T>
  65 void bar(typename T::x);
  66 }
  67
  68 template <typename T>
  69 void N::bar(typename T::x) {}
  70 }
  71
  72 // This PR occurred only in template parsing mode.
  73 namespace PR17637 {
  74 template <int>
  75 struct L {
  76   template <typename T>
  77   struct O {
  78     template <typename U>
  79     static void Fun(U);
  80   };
  81 };
  82
  83 template <int k>
  84 template <typename T>
  85 template <typename U>
  86 void L<k>::O<T>::Fun(U) {}
  87
  88 void Instantiate() { L<0>::O<int>::Fun(0); }
  89 }
  90
  91 namespace explicit_partial_specializations {
  92 typedef char (&oneT)[1];
  93 typedef char (&twoT)[2];
  94 typedef char (&threeT)[3];
  95 typedef char (&fourT)[4];
  96 typedef char (&fiveT)[5];
  97 typedef char (&sixT)[6];
  98
  99 char one[1];
 100 char two[2];
 101 char three[3];
 102 char four[4];
 103 char five[5];
 104 char six[6];
 105
 106 template <bool b>
 107 struct bool_ { typedef int type; };
 108 template <>
 109 struct bool_<false> {};
 110
 111 #define XCAT(x, y) x##y
 112 #define CAT(x, y) XCAT(x, y)
 113 #define sassert(_b_) bool_<(_b_)>::type CAT(var, __LINE__);
 114
 115 template <int>
 116 struct L {
 117   template <typename T>
 118   struct O {
 119     template <typename U>
 120     static oneT Fun(U);
 121   };
 122 };
 123 template <int k>
 124 template <typename T>
 125 template <typename U>
 126 oneT L<k>::O<T>::Fun(U) { return one; }
 127
 128 template <>
 129 template <>
 130 template <typename U>
 131 oneT L<0>::O<char>::Fun(U) { return one; }
 132
 133 void Instantiate() {
 134   sassert(sizeof(L<0>::O<int>::Fun(0)) == sizeof(one));
 135   sassert(sizeof(L<0>::O<char>::Fun(0)) == sizeof(one));
 136 }
 137 }
 138
 139 template <class>
 140 struct Foo {
 141   template <class _Other>
 142   using rebind_alloc = _Other;
 143 };
 144 template <class _Alloc>
 145 struct _Wrap_alloc {
 146   template <class _Other>
 147   using rebind_alloc = typename Foo<_Alloc>::template rebind_alloc<_Other>;
 148   template <class>
 149   using rebind = _Wrap_alloc;
 150 };
 151 _Wrap_alloc<int>::rebind<int> w;
 152
 153 // CHECK: Miscellaneous Ungrouped Timers
 154 // CHECK-DAG: LLVM IR Generation Time
 155 // CHECK-DAG: Code Generation Time
 156 // CHECK: Total
 157 // CHECK: Clang front-end time report
 158 // CHECK: Clang front-end timer
 159 // CHECK: Total