clang/test/CodeGenCXX/function-template-specialization.cpp

   1 // RUN: %clang_cc1 -emit-llvm -triple %itanium_abi_triple %s -o - | FileCheck %s
   2
   3 // CHECK-DAG: _ZZN7PR219047GetDataIiEERKibE1i = internal global i32 4
   4 // CHECK-DAG: _ZZN7PR219047GetDataIiEERKibE1i_0 = internal global i32 2
   5
   6 template<typename T, typename U>
   7 T* next(T* ptr, const U& diff);
   8
   9 template<typename T, typename U>
  10 T* next(T* ptr, const U& diff) {
  11   return ptr + diff;
  12 }
  13
  14 void test(int *iptr, float *fptr, int diff) {
  15   // CHECK: _Z4nextIiiEPT_S1_RKT0_
  16   iptr = next(iptr, diff);
  17
  18   // CHECK: _Z4nextIfiEPT_S1_RKT0_
  19   fptr = next(fptr, diff);
  20 }
  21
  22 template<typename T, typename U>
  23 T* next(T* ptr, const U& diff);
  24
  25 void test2(int *iptr, double *dptr, int diff) {
  26   iptr = next(iptr, diff);
  27
  28   // CHECK: _Z4nextIdiEPT_S1_RKT0_
  29   dptr = next(dptr, diff);
  30 }
  31
  32 namespace PR21904 {
  33 template <typename>
  34 const int &GetData(bool);
  35
  36 template <>
  37 const int &GetData<int>(bool b) {
  38   static int i = 4;
  39   if (b) {
  40     static int i = 2;
  41     return i;
  42   }
  43   return i;
  44 }
  45 }