1 files changed, 7 insertions, 1 deletions
diff --git a/clang/lib/Parse/ParseExpr.cpp b/clang/lib/Parse/ParseExpr.cpp
index 956ba36d3c8..326056daf44 100644
--- a/clang/lib/Parse/ParseExpr.cpp
+++ b/clang/lib/Parse/ParseExpr.cpp
@@ -691,8 +691,14 @@ ExprResult Parser::ParseCastExpression(bool isUnaryExpression,
     Res = getExprAnnotation(Tok);
     ConsumeToken();
     break;
-      
+
   case tok::kw_decltype:
+    // Annotate the token and tail recurse.
+    if (TryAnnotateTypeOrScopeToken())
+      return ExprError();
+    assert(Tok.isNot(tok::kw_decltype));
+    return ParseCastExpression(isUnaryExpression, isAddressOfOperand);
+      
   case tok::identifier: {      // primary-expression: identifier
                                // unqualified-id: identifier
                                // constant: enumeration-constant