1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/IR/DebugInfo.cpp b/llvm/lib/IR/DebugInfo.cpp
index 206d04e3749..2226dd63be6 100644
--- a/llvm/lib/IR/DebugInfo.cpp
+++ b/llvm/lib/IR/DebugInfo.cpp
@@ -1460,7 +1460,9 @@ void DIExpression::printInternal(raw_ostream &OS) const {
       break;
     }
     default:
-      break;
+      // Else bail out early. This may be a line table entry.
+      OS << "Unknown]";
+      return;
     }
     OS << "]";
   }