clang/test/CodeGenCXX/vtable-key-function-win-comdat.cpp

   1 // RUN: %clang_cc1 %s -triple=x86_64-pc-windows-gnu -emit-llvm -o - | FileCheck %s
   2
   3 namespace std { class type_info; }
   4 extern void use(const std::type_info &rtti);
   5
   6 struct Test1a {
   7   Test1a();
   8   virtual void foo();
   9   virtual void bar();
  10 };
  11
  12 // V-table needs to be defined weakly.
  13 Test1a::Test1a() { use(typeid(Test1a)); }
  14 // This defines the key function.
  15 inline void Test1a::foo() {}
  16
  17 // CHECK:     $_ZTV6Test1a = comdat any
  18 // CHECK:     $_ZTS6Test1a = comdat any
  19 // CHECK:     $_ZTI6Test1a = comdat any
  20 // CHECK-NOT: $_ZTS6Test1a.1 = comdat any
  21 // CHECK-NOT: $_ZTI6Test1a.1 = comdat any
  22
  23 // CHECK: @_ZTV6Test1a = linkonce_odr dso_local unnamed_addr constant {{.*}} ptr @_ZTI6Test1a
  24 // CHECK: @_ZTS6Test1a = linkonce_odr dso_local constant
  25 // CHECK: @_ZTI6Test1a = linkonce_odr dso_local constant {{.*}} ptr @_ZTS6Test1a