*** old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/ProxyNode.java	Mon Mar 20 17:40:31 2017
--- new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/ProxyNode.java	Mon Mar 20 17:40:31 2017

*** 25,35 ****
--- 25,34 ----
  import static org.graalvm.compiler.nodeinfo.InputType.Association;
  import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
  import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;
  
  import org.graalvm.compiler.core.common.type.Stamp;
  import org.graalvm.compiler.graph.IterableNodeType;
  import org.graalvm.compiler.graph.Node.ValueNumberable;
  import org.graalvm.compiler.graph.NodeClass;
  import org.graalvm.compiler.nodeinfo.NodeInfo;
  import org.graalvm.compiler.nodes.calc.FloatingNode;
  import org.graalvm.compiler.nodes.extended.GuardingNode;

*** 37,47 ****
--- 36,46 ----
  /**
   * A proxy is inserted at loop exits for any value that is created inside the loop (i.e. was not
   * live on entry to the loop) and is (potentially) used after the loop.
   */
  @NodeInfo(cycles = CYCLES_0, size = SIZE_0)
- public abstract class ProxyNode extends FloatingNode implements IterableNodeType, ValueNumberable {
  
      public static final NodeClass<ProxyNode> TYPE = NodeClass.create(ProxyNode.class);
      @Input(Association) LoopExitNode loopExit;
  
      protected ProxyNode(NodeClass<? extends ProxyNode> c, Stamp stamp, LoopExitNode proxyPoint) {