test/CodeGenCXX/mangle-ms-templates.cpp

// RUN: %clang_cc1 -emit-llvm %s -o - -cxx-abi microsoft -triple=i386-pc-win32 | FileCheck %s
// RUN: %clang_cc1 -emit-llvm %s -o - -cxx-abi microsoft -triple=x86_64-pc-win32 | FileCheck -check-prefix X64 %s

template<typename T>
class Class {
 public:
  Class() {}
};

class Typename { };

template<typename T>
class Nested { };

template<bool flag>
class BoolTemplate {
 public:
  BoolTemplate() {}
};

template<int param>
class IntTemplate {
 public:
  IntTemplate() {}
};

template<>
class BoolTemplate<true> {
 public:
  BoolTemplate() {}
  template<class T> void Foo(T arg) {}
};

void template_mangling() {
  Class<Typename> c1;
// CHECK: call {{.*}} @"\01??0?$Class@VTypename@@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@VTypename@@@@QEAA@XZ"

  Class<const Typename> c1_const;
// CHECK: call {{.*}} @"\01??0?$Class@$$CBVTypename@@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@$$CBVTypename@@@@QEAA@XZ"
  Class<volatile Typename> c1_volatile;
// CHECK: call {{.*}} @"\01??0?$Class@$$CCVTypename@@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@$$CCVTypename@@@@QEAA@XZ"
  Class<const volatile Typename> c1_cv;
// CHECK: call {{.*}} @"\01??0?$Class@$$CDVTypename@@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@$$CDVTypename@@@@QEAA@XZ"

  Class<Nested<Typename> > c2;
// CHECK: call {{.*}} @"\01??0?$Class@V?$Nested@VTypename@@@@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@V?$Nested@VTypename@@@@@@QEAA@XZ"

  Class<int * const> c_intpc;
// CHECK: call {{.*}} @"\01??0?$Class@QAH@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@QEAH@@QEAA@XZ"
  Class<int()> c_ft;
// CHECK: call {{.*}} @"\01??0?$Class@$$A6AHXZ@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@$$A6AHXZ@@QEAA@XZ"
  Class<int[]> c_inti;
// CHECK: call {{.*}} @"\01??0?$Class@$$BY0A@H@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@$$BY0A@H@@QEAA@XZ"
  Class<int[5]> c_int5;
// CHECK: call {{.*}} @"\01??0?$Class@$$BY04H@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@$$BY04H@@QEAA@XZ"
  Class<const int[5]> c_intc5;
// CHECK: call {{.*}} @"\01??0?$Class@$$BY04$$CBH@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@$$BY04$$CBH@@QEAA@XZ"
  Class<int * const[5]> c_intpc5;
// CHECK: call {{.*}} @"\01??0?$Class@$$BY04QAH@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$Class@$$BY04QEAH@@QEAA@XZ"

  BoolTemplate<false> _false;
// CHECK: call {{.*}} @"\01??0?$BoolTemplate@$0A@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$BoolTemplate@$0A@@@QEAA@XZ"

  BoolTemplate<true> _true;
  // PR13158
  _true.Foo(1);
// CHECK: call {{.*}} @"\01??0?$BoolTemplate@$00@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$BoolTemplate@$00@@QEAA@XZ"
// CHECK: call {{.*}} @"\01??$Foo@H@?$BoolTemplate@$00@@QAEXH@Z"
// X64: call {{.*}} @"\01??$Foo@H@?$BoolTemplate@$00@@QEAAXH@Z"

  IntTemplate<0> zero;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0A@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$IntTemplate@$0A@@@QEAA@XZ"

  IntTemplate<5> five;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$04@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$IntTemplate@$04@@QEAA@XZ"

  IntTemplate<11> eleven;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0L@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$IntTemplate@$0L@@@QEAA@XZ"

  IntTemplate<256> _256;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0BAA@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$IntTemplate@$0BAA@@@QEAA@XZ"

  IntTemplate<513> _513;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0CAB@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$IntTemplate@$0CAB@@@QEAA@XZ"

  IntTemplate<1026> _1026;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0EAC@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$IntTemplate@$0EAC@@@QEAA@XZ"

  IntTemplate<65535> ffff;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0PPPP@@@QAE@XZ"
// X64: call {{.*}} @"\01??0?$IntTemplate@$0PPPP@@@QEAA@XZ"
}

namespace space {
  template<class T> const T& foo(const T& l) { return l; }
}
// CHECK: "\01??$foo@H@space@@YAABHABH@Z"
// X64: "\01??$foo@H@space@@YAAEBHAEBH@Z"

void use() {
  space::foo(42);
}

// PR13455
typedef void (*FunctionPointer)(void);

template <FunctionPointer function>
void FunctionPointerTemplate() {
  function();
}

void spam() {
  FunctionPointerTemplate<spam>();
// CHECK: "\01??$FunctionPointerTemplate@$1?spam@@YAXXZ@@YAXXZ"
// X64: "\01??$FunctionPointerTemplate@$1?spam@@YAXXZ@@YAXXZ"
}

// Unlike Itanium, there is no character code to indicate an argument pack.
// Tested with MSVC 2013, the first version which supports variadic templates.

template <typename ...Ts> void variadic_fn_template(const Ts &...args) { }
void variadic_fn_instantiate() {
  variadic_fn_template(0, 1, 3, 4);
  variadic_fn_template(0, 1, 'a', "b");
}
// CHECK: "\01??$variadic_fn_template@HHHH@@YAXABH000@Z"
// CHECK: "\01??$variadic_fn_template@HHD$$BY01D@@YAXABH0ABDAAY01$$CBD@Z"

template <typename ...Ts>
struct VariadicClass {
  VariadicClass() { }
  int x;
};
void variadic_class_instantiate() {
  VariadicClass<int, char, bool> a;
  VariadicClass<bool, char, int> b;
}
// CHECK: call {{.*}} @"\01??0?$VariadicClass@HD_N@@QAE@XZ"
// CHECK: call {{.*}} @"\01??0?$VariadicClass@_NDH@@QAE@XZ"