1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index dbf9b6dad4f..403838176c6 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -2414,6 +2414,10 @@ Decl *Sema::HandleDeclarator(Scope *S, Declarator &D,
   TypeSourceInfo *TInfo = GetTypeForDeclarator(D, S);
   QualType R = TInfo->getType();
 
+  if (DiagnoseUnexpandedParameterPack(D.getIdentifierLoc(), TInfo,
+                                      UPPC_DeclarationType))
+    D.setInvalidType();
+
   LookupResult Previous(*this, NameInfo, LookupOrdinaryName,
                         ForRedeclaration);