--- a/lib/Object/SymbolSize.cpp	Sat Feb 17 09:57:20 2018 +0900
+++ b/lib/Object/SymbolSize.cpp	Wed Aug 14 16:55:33 2019 +0900
@@ -1,9 +1,8 @@
 //===- SymbolSize.cpp -----------------------------------------------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
@@ -66,6 +65,10 @@
     Addresses.push_back(
         {O.symbol_end(), Address + Size, 0, getSectionID(O, Sec)});
   }
+
+  if (Addresses.empty())
+    return Ret;
+
   array_pod_sort(Addresses.begin(), Addresses.end(), compareAddress);
 
   // Compute the size as the gap to the next symbol