clang/test/CodeGenCXX/cxx11-vtable-key-function.cpp

   1 // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -std=c++11 | FileCheck %s
   2 // PR13424
   3
   4 namespace Test1 {
   5 struct X {
   6   virtual ~X(); // Key function.
   7   virtual void f(); // Not a key function.
   8 };
   9
  10 X::~X() = default;
  11
  12 // Verify that the vtable is emitted.
  13 // CHECK-DAG: @_ZTVN5Test11XE ={{.*}} unnamed_addr constant
  14 }
  15
  16 namespace Test2 {
  17 struct X {
  18   virtual ~X() = default; // Not a key function.
  19   virtual void f(); // Key function.
  20 };
  21
  22 void X::f() {}
  23
  24 // Verify that the vtable is emitted.
  25 // CHECK-DAG: @_ZTVN5Test21XE ={{.*}} unnamed_addr constant
  26 }
  27
  28 namespace Test3 {
  29 struct X {
  30   virtual ~X() = delete; // Not a key function.
  31   virtual void f(); // Key function.
  32 };
  33
  34 void X::f() {}
  35
  36 // Verify that the vtable is emitted.
  37 // CHECK-DAG: @_ZTVN5Test31XE ={{.*}} unnamed_addr constant
  38 }