*** old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/memory/AbstractWriteNode.java	Mon Mar 20 17:40:56 2017
--- new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/memory/AbstractWriteNode.java	Mon Mar 20 17:40:56 2017

*** 44,55 ****
--- 44,53 ----
      public static final NodeClass<AbstractWriteNode> TYPE = NodeClass.create(AbstractWriteNode.class);
      @Input ValueNode value;
      @OptionalInput(InputType.State) FrameState stateAfter;
      @OptionalInput(InputType.Memory) Node lastLocationAccess;
  
      protected final boolean initialization;
  
      @Override
      public FrameState stateAfter() {
          return stateAfter;
      }
  

*** 67,100 ****
--- 65,77 ----
  
      public ValueNode value() {
          return value;
      }
  
      /**
       * Returns whether this write is the initialization of the written location. If it is true, the
       * old value of the memory location is either uninitialized or zero. If it is false, the memory
       * location is guaranteed to contain a valid value or zero.
       */
      public boolean isInitialization() {
          return initialization;
      }
  
      protected AbstractWriteNode(NodeClass<? extends AbstractWriteNode> c, AddressNode address, LocationIdentity location, ValueNode value, BarrierType barrierType) {
          this(c, address, location, value, barrierType, false);
      }
  
      protected AbstractWriteNode(NodeClass<? extends AbstractWriteNode> c, AddressNode address, LocationIdentity location, ValueNode value, BarrierType barrierType, boolean initialization) {
          super(c, address, location, StampFactory.forVoid(), barrierType);
          this.value = value;
          this.initialization = initialization;
      }
  
      protected AbstractWriteNode(NodeClass<? extends AbstractWriteNode> c, AddressNode address, LocationIdentity location, ValueNode value, BarrierType barrierType, GuardingNode guard,
                      boolean initialization) {
          super(c, address, location, StampFactory.forVoid(), guard, barrierType, false, null);
          this.value = value;
          this.initialization = initialization;
      }
  
      @Override
      public boolean isAllowedUsageType(InputType type) {
          return (type == InputType.Guard && getNullCheck()) ? true : super.isAllowedUsageType(type);