In Sema, whenever we think that a function is going to cause a vtable to be generated, we mark any virtual implicit member functions as referenced.

llvm-svn: 90327

1 files changed, 5 insertions, 3 deletions

diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 76b726fe339..5a7d0060433 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -4085,12 +4085,14 @@ Sema::DeclPtrTy Sema::ActOnFinishFunctionBody(DeclPtrTy D, StmtArg BodyArg,
     if (!FD->isInvalidDecl())
       DiagnoseUnusedParameters(FD->param_begin(), FD->param_end());
 
-    // C++ [basic.def.odr]p2:
-    //   [...] A virtual member function is used if it is not pure. [...]
-    if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(FD))
+    if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(FD)) {
+      // C++ [basic.def.odr]p2:
+      //   [...] A virtual member function is used if it is not pure. [...]
       if (Method->isVirtual() && !Method->isPure())
         MarkDeclarationReferenced(Method->getLocation(), Method);
 
+      MaybeMarkVirtualImplicitMembersReferenced(Method->getLocation(), Method);
+    }
     assert(FD == getCurFunctionDecl() && "Function parsing confused");
   } else if (ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(dcl)) {
     assert(MD == getCurMethodDecl() && "Method parsing confused");