50     public static final NodeClass<IdentityHashCodeNode> TYPE = NodeClass.create(IdentityHashCodeNode.class);
  51 
  52     @Input ValueNode object;
  53 
  54     public IdentityHashCodeNode(ValueNode object) {
  55         super(TYPE, StampFactory.forInteger(32));
  56         this.object = object;
  57 
  58     }
  59 
  60     @Override
  61     public LocationIdentity getLocationIdentity() {
  62         return HotSpotReplacementsUtil.MARK_WORD_LOCATION;
  63     }
  64 
  65     @Override
  66     public Node canonical(CanonicalizerTool tool) {
  67         if (object.isConstant()) {
  68             assert object.stamp() instanceof AbstractObjectStamp;
  69             JavaConstant c = (JavaConstant) object.asConstant();
  70             if (ImmutableCode.getValue()) {
  71                 return this;
  72             }
  73             JavaConstant identityHashCode = null;
  74             if (c.isNull()) {
  75                 identityHashCode = JavaConstant.forInt(0);
  76             } else {
  77                 identityHashCode = JavaConstant.forInt(((HotSpotObjectConstant) c).getIdentityHashCode());
  78             }
  79 
  80             return new ConstantNode(identityHashCode, StampFactory.forConstant(identityHashCode));
  81         }
  82         return this;
  83     }
  84 
  85     @Override
  86     public void lower(LoweringTool tool) {
  87         tool.getLowerer().lower(this, tool);
  88     }
  89 
  90     @NodeIntrinsic

  50     public static final NodeClass<IdentityHashCodeNode> TYPE = NodeClass.create(IdentityHashCodeNode.class);
  51 
  52     @Input ValueNode object;
  53 
  54     public IdentityHashCodeNode(ValueNode object) {
  55         super(TYPE, StampFactory.forInteger(32));
  56         this.object = object;
  57 
  58     }
  59 
  60     @Override
  61     public LocationIdentity getLocationIdentity() {
  62         return HotSpotReplacementsUtil.MARK_WORD_LOCATION;
  63     }
  64 
  65     @Override
  66     public Node canonical(CanonicalizerTool tool) {
  67         if (object.isConstant()) {
  68             assert object.stamp() instanceof AbstractObjectStamp;
  69             JavaConstant c = (JavaConstant) object.asConstant();
  70             if (ImmutableCode.getValue(getOptions())) {
  71                 return this;
  72             }
  73             JavaConstant identityHashCode = null;
  74             if (c.isNull()) {
  75                 identityHashCode = JavaConstant.forInt(0);
  76             } else {
  77                 identityHashCode = JavaConstant.forInt(((HotSpotObjectConstant) c).getIdentityHashCode());
  78             }
  79 
  80             return new ConstantNode(identityHashCode, StampFactory.forConstant(identityHashCode));
  81         }
  82         return this;
  83     }
  84 
  85     @Override
  86     public void lower(LoweringTool tool) {
  87         tool.getLowerer().lower(this, tool);
  88     }
  89 
  90     @NodeIntrinsic