https://www.graalvm.org/ 
public final class org.graalvm.compiler.nodes.EntryMarkerNode extends org.graalvm.compiler.nodes.BeginStateSplitNode implements org.graalvm.compiler.graph.IterableNodeType, org.graalvm.compiler.nodes.spi.LIRLowerable
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.graalvm.compiler.nodes.EntryMarkerNode
  super_class: org.graalvm.compiler.nodes.BeginStateSplitNode
{
  public static final org.graalvm.compiler.graph.NodeClass<org.graalvm.compiler.nodes.EntryMarkerNode> TYPE;
    descriptor: Lorg/graalvm/compiler/graph/NodeClass;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Signature: Lorg/graalvm/compiler/graph/NodeClass<Lorg/graalvm/compiler/nodes/EntryMarkerNode;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 46
            ldc Lorg/graalvm/compiler/nodes/EntryMarkerNode;
            invokestatic org.graalvm.compiler.graph.NodeClass.create:(Ljava/lang/Class;)Lorg/graalvm/compiler/graph/NodeClass;
            putstatic org.graalvm.compiler.nodes.EntryMarkerNode.TYPE:Lorg/graalvm/compiler/graph/NodeClass;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
         0: .line 49
            aload 0 /* this */
            getstatic org.graalvm.compiler.nodes.EntryMarkerNode.TYPE:Lorg/graalvm/compiler/graph/NodeClass;
            invokespecial org.graalvm.compiler.nodes.BeginStateSplitNode.<init>:(Lorg/graalvm/compiler/graph/NodeClass;)V
         1: .line 50
            return
        end local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/graalvm/compiler/nodes/EntryMarkerNode;

  public void generate(org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool);
    descriptor: (Lorg/graalvm/compiler/nodes/spi/NodeLIRBuilderTool;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
        start local 1 // org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool gen
         0: .line 54
            new org.graalvm.compiler.debug.GraalError
            dup
            ldc "OnStackReplacementNode should not survive"
            invokespecial org.graalvm.compiler.debug.GraalError.<init>:(Ljava/lang/String;)V
            athrow
        end local 1 // org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool gen
        end local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/nodes/EntryMarkerNode;
            0    1     1   gen  Lorg/graalvm/compiler/nodes/spi/NodeLIRBuilderTool;
    MethodParameters:
      Name  Flags
      gen   

  public org.graalvm.compiler.graph.iterators.NodeIterable<org.graalvm.compiler.graph.Node> anchored();
    descriptor: ()Lorg/graalvm/compiler/graph/iterators/NodeIterable;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
         0: .line 59
            aload 0 /* this */
            invokespecial org.graalvm.compiler.nodes.BeginStateSplitNode.anchored:()Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            aload 0 /* this */
            invokedynamic apply(Lorg/graalvm/compiler/nodes/EntryMarkerNode;)Lorg/graalvm/compiler/graph/iterators/NodePredicate;
              Bootstrap: invokestatic java.lang.invoke.LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
                Method arguments:
                  (Lorg/graalvm/compiler/graph/Node;)Z
                  org/graalvm/compiler/nodes/EntryMarkerNode.lambda$0(Lorg/graalvm/compiler/graph/Node;)Z (7)
                  (Lorg/graalvm/compiler/graph/Node;)Z
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.filter:(Lorg/graalvm/compiler/graph/iterators/NodePredicate;)Lorg/graalvm/compiler/graph/iterators/FilteredNodeIterable;
            areturn
        end local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/nodes/EntryMarkerNode;
    Signature: ()Lorg/graalvm/compiler/graph/iterators/NodeIterable<Lorg/graalvm/compiler/graph/Node;>;

  public void prepareDelete(org.graalvm.compiler.nodes.FixedNode);
    descriptor: (Lorg/graalvm/compiler/nodes/FixedNode;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=5, args_size=2
        start local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
        start local 1 // org.graalvm.compiler.nodes.FixedNode evacuateFrom
         0: .line 70
            aload 0 /* this */
            invokevirtual org.graalvm.compiler.nodes.EntryMarkerNode.usages:()Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            ldc Lorg/graalvm/compiler/nodes/EntryProxyNode;
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.filter:(Ljava/lang/Class;)Lorg/graalvm/compiler/graph/iterators/NodeIterable;
            invokeinterface org.graalvm.compiler.graph.iterators.NodeIterable.snapshot:()Ljava/util/List;
            invokeinterface java.util.List.iterator:()Ljava/util/Iterator;
            astore 3
            goto 4
      StackMap locals: org.graalvm.compiler.nodes.EntryMarkerNode org.graalvm.compiler.nodes.FixedNode top java.util.Iterator
      StackMap stack:
         1: aload 3
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.graalvm.compiler.graph.Node
            astore 2 /* usage */
        start local 2 // org.graalvm.compiler.graph.Node usage
         2: .line 71
            aload 2 /* usage */
            checkcast org.graalvm.compiler.nodes.EntryProxyNode
            astore 4 /* proxy */
        start local 4 // org.graalvm.compiler.nodes.EntryProxyNode proxy
         3: .line 72
            aload 4 /* proxy */
            aload 4 /* proxy */
            invokevirtual org.graalvm.compiler.nodes.EntryProxyNode.value:()Lorg/graalvm/compiler/nodes/ValueNode;
            invokevirtual org.graalvm.compiler.nodes.EntryProxyNode.replaceAndDelete:(Lorg/graalvm/compiler/graph/Node;)V
        end local 4 // org.graalvm.compiler.nodes.EntryProxyNode proxy
        end local 2 // org.graalvm.compiler.graph.Node usage
         4: .line 70
      StackMap locals:
      StackMap stack:
            aload 3
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 1
         5: .line 74
            aload 0 /* this */
            aload 1 /* evacuateFrom */
            invokespecial org.graalvm.compiler.nodes.BeginStateSplitNode.prepareDelete:(Lorg/graalvm/compiler/nodes/FixedNode;)V
         6: .line 75
            return
        end local 1 // org.graalvm.compiler.nodes.FixedNode evacuateFrom
        end local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    7     0          this  Lorg/graalvm/compiler/nodes/EntryMarkerNode;
            0    7     1  evacuateFrom  Lorg/graalvm/compiler/nodes/FixedNode;
            2    4     2         usage  Lorg/graalvm/compiler/graph/Node;
            3    4     4         proxy  Lorg/graalvm/compiler/nodes/EntryProxyNode;
    MethodParameters:
              Name  Flags
      evacuateFrom  

  private boolean lambda$0(org.graalvm.compiler.graph.Node);
    descriptor: (Lorg/graalvm/compiler/graph/Node;)Z
    flags: (0x1002) ACC_PRIVATE, ACC_SYNTHETIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
        start local 1 // org.graalvm.compiler.graph.Node n
         0: .line 60
            aload 1 /* n */
            instanceof org.graalvm.compiler.nodes.EntryProxyNode
            ifeq 4
         1: .line 61
            aload 1 /* n */
            checkcast org.graalvm.compiler.nodes.EntryProxyNode
            astore 2 /* proxyNode */
        start local 2 // org.graalvm.compiler.nodes.EntryProxyNode proxyNode
         2: .line 62
            aload 2 /* proxyNode */
            getfield org.graalvm.compiler.nodes.EntryProxyNode.proxyPoint:Lorg/graalvm/compiler/nodes/EntryMarkerNode;
            aload 0 /* this */
            if_acmpeq 3
            iconst_1
            ireturn
      StackMap locals: org.graalvm.compiler.nodes.EntryProxyNode
      StackMap stack:
         3: iconst_0
            ireturn
        end local 2 // org.graalvm.compiler.nodes.EntryProxyNode proxyNode
         4: .line 64
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 1 // org.graalvm.compiler.graph.Node n
        end local 0 // org.graalvm.compiler.nodes.EntryMarkerNode this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    5     0       this  Lorg/graalvm/compiler/nodes/EntryMarkerNode;
            0    5     1          n  Lorg/graalvm/compiler/graph/Node;
            2    4     2  proxyNode  Lorg/graalvm/compiler/nodes/EntryProxyNode;
}
SourceFile: "EntryMarkerNode.java"
InnerClasses:
  public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles
    RuntimeVisibleAnnotations: 
      org.graalvm.compiler.nodeinfo.NodeInfo(allowedUsageTypes = {org.graalvm.compiler.nodeinfo.InputType.Association:Lorg/graalvm/compiler/nodeinfo/InputType;}, cycles = org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0:Lorg/graalvm/compiler/nodeinfo/NodeCycles;, size = org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0:Lorg/graalvm/compiler/nodeinfo/NodeSize;)