1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Sema/TreeTransform.h b/lib/Sema/TreeTransform.h
index 0c1f1a42a0..3d9a6ca11b 100644
--- a/lib/Sema/TreeTransform.h
+++ b/lib/Sema/TreeTransform.h
@@ -8321,6 +8321,13 @@ TreeTransform<Derived>::TransformSubstNonTypeTemplateParmExpr(
 
 template<typename Derived>
 ExprResult
+TreeTransform<Derived>::TransformFunctionParmPackExpr(FunctionParmPackExpr *E) {
+  // Default behavior is to do nothing with this transformation.
+  return SemaRef.Owned(E);
+}
+
+template<typename Derived>
+ExprResult
 TreeTransform<Derived>::TransformMaterializeTemporaryExpr(
                                                   MaterializeTemporaryExpr *E) {
   return getDerived().TransformExpr(E->GetTemporaryExpr());