clang/test/CodeGenCXX/microsoft-abi-structors-alias.cpp

   1 // RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 -fno-rtti -mconstructor-aliases -O1 -disable-llvm-passes | FileCheck %s
   2
   3 namespace test1 {
   4 template <typename T> class A {
   5   ~A() {}
   6 };
   7 template class A<char>;
   8 // CHECK-DAG: define weak_odr dso_local x86_thiscallcc void @"??1?$A@D@test1@@AAE@XZ"
   9 }
  10
  11 namespace test2 {
  12 struct A {
  13   virtual ~A();
  14 };
  15 struct B : A {
  16   B();
  17   virtual ~B();
  18 };
  19
  20 A::~A() {}
  21 B::~B() {}
  22 void foo() {
  23   B b;
  24 }
  25 // CHECK-DAG: @"??1B@test2@@UAE@XZ" = dso_local unnamed_addr alias void (%"struct.test2::B"*), bitcast (void (%"struct.test2::A"*)* @"??1A@test2@@UAE@XZ" to void (%"struct.test2::B"*)*)
  26 }
  27
  28 namespace test3 {
  29 struct A { virtual ~A(); };
  30 A::~A() {}
  31 }
  32 // CHECK-DAG: define dso_local x86_thiscallcc void @"??1A@test3@@UAE@XZ"(
  33 namespace test3 {
  34 template <typename T>
  35 struct B : A {
  36   virtual ~B() { }
  37 };
  38 template struct B<int>;
  39 }
  40 // This has to be weak, and emitting weak aliases is fragile, so we don't do the
  41 // aliasing.
  42 // CHECK-DAG: define weak_odr dso_local x86_thiscallcc void @"??1?$B@H@test3@@UAE@XZ"(