*** old/src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.code/src/jdk/vm/ci/code/BytecodePosition.java	Thu Mar 28 11:23:31 2019
--- new/src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.code/src/jdk/vm/ci/code/BytecodePosition.java	Thu Mar 28 11:23:30 2019

*** 1,7 ****
--- 1,7 ----
  /*
!  * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2009, 2019, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.

*** 85,95 ****
--- 85,99 ----
          return false;
      }
  
      @Override
      public int hashCode() {
!         return getBCI();
!         int hc = method.hashCode() * 31 + bci;
+         if (caller != null) {
+             hc = (hc * 31) + caller.hashCode();
+         }
+         return hc;
      }
  
      /**
       * @return The location within the method, as a bytecode index. The constant {@code -1} may be
       *         used to indicate the location is unknown, for example within code synthesized by the