1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/Mangle.cpp b/lib/CodeGen/Mangle.cpp
index 24e441a..b5ad5ac 100644
--- a/lib/CodeGen/Mangle.cpp
+++ b/lib/CodeGen/Mangle.cpp
@@ -539,6 +539,9 @@ void CXXNameMangler::mangleType(const BuiltinType *T) {
     assert(false && 
            "Overloaded and dependent types shouldn't get to name mangling");
     break;
+  case BuiltinType::UndeducedAuto:
+    assert(0 && "Should not see undeduced auto here");
+    break;
   }
 }