clang/test/CodeGen/available-externally-hidden.cpp

   1 // RUN: %clang_cc1 -O2 -fvisibility=hidden -std=c++11 -emit-llvm -o - -triple x86_64-apple-darwin10 %s | FileCheck %s
   2
   3 // Ensure that available_externally functions eliminated at -O2 are now
   4 // declarations, and are not emitted as hidden with -fvisibility=hidden,
   5 // but rather with default visibility.
   6 struct Filter {
   7   virtual void Foo();
   8   int a;
   9 };
  10
  11 class Message{};
  12 class Sender {
  13  public:
  14   virtual bool Send(Message* msg) = 0;
  15
  16  protected:
  17   virtual ~Sender() {}
  18 };
  19
  20 // CHECK: declare noundef zeroext i1 @_ZThn16_N17SyncMessageFilter4SendEP7Message
  21 class SyncMessageFilter : public Filter, public Sender {
  22  public:
  23   bool Send(Message* message) override;
  24 };
  25
  26 class TestSyncMessageFilter : public SyncMessageFilter {
  27 };
  28
  29 int main() {
  30   TestSyncMessageFilter *f = new TestSyncMessageFilter;
  31   f->Send(new Message);
  32 }