1 files changed, 3 insertions, 0 deletions
diff --git a/lib/AST/Type.cpp b/lib/AST/Type.cpp
index 257d114f25..708c344bc7 100644
--- a/lib/AST/Type.cpp
+++ b/lib/AST/Type.cpp
@@ -1143,6 +1143,9 @@ FunctionProtoType::FunctionProtoType(QualType result, const QualType *args,
   }
 }
 
+bool FunctionProtoType::isTemplateVariadic() const {
+  return getNumArgs() && isa<PackExpansionType>(getArgType(getNumArgs() - 1));
+}
 
 void FunctionProtoType::Profile(llvm::FoldingSetNodeID &ID, QualType Result,
                                 const QualType *ArgTys, unsigned NumArgs,