https://www.graalvm.org/ 
public abstract class org.graalvm.compiler.nodes.AbstractDeoptimizeNode extends org.graalvm.compiler.nodes.ControlSinkNode implements org.graalvm.compiler.graph.IterableNodeType, org.graalvm.compiler.nodes.DeoptimizingNode$DeoptBefore
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.graalvm.compiler.nodes.AbstractDeoptimizeNode
  super_class: org.graalvm.compiler.nodes.ControlSinkNode
{
  public static final org.graalvm.compiler.graph.NodeClass<org.graalvm.compiler.nodes.AbstractDeoptimizeNode> 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/AbstractDeoptimizeNode;>;

  org.graalvm.compiler.nodes.FrameState stateBefore;
    descriptor: Lorg/graalvm/compiler/nodes/FrameState;
    flags: (0x0000) 
    RuntimeVisibleAnnotations: 
      org.graalvm.compiler.graph.Node$OptionalInput(value = org.graalvm.compiler.nodeinfo.InputType.State:Lorg/graalvm/compiler/nodeinfo/InputType;)

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 54
            ldc Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;
            invokestatic org.graalvm.compiler.graph.NodeClass.create:(Ljava/lang/Class;)Lorg/graalvm/compiler/graph/NodeClass;
            putstatic org.graalvm.compiler.nodes.AbstractDeoptimizeNode.TYPE:Lorg/graalvm/compiler/graph/NodeClass;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  protected void <init>(org.graalvm.compiler.graph.NodeClass<? extends org.graalvm.compiler.nodes.AbstractDeoptimizeNode>, org.graalvm.compiler.nodes.FrameState);
    descriptor: (Lorg/graalvm/compiler/graph/NodeClass;Lorg/graalvm/compiler/nodes/FrameState;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode this
        start local 1 // org.graalvm.compiler.graph.NodeClass c
        start local 2 // org.graalvm.compiler.nodes.FrameState stateBefore
         0: .line 58
            aload 0 /* this */
            aload 1 /* c */
            invokestatic org.graalvm.compiler.core.common.type.StampFactory.forVoid:()Lorg/graalvm/compiler/core/common/type/Stamp;
            invokespecial org.graalvm.compiler.nodes.ControlSinkNode.<init>:(Lorg/graalvm/compiler/graph/NodeClass;Lorg/graalvm/compiler/core/common/type/Stamp;)V
         1: .line 59
            aload 0 /* this */
            aload 2 /* stateBefore */
            putfield org.graalvm.compiler.nodes.AbstractDeoptimizeNode.stateBefore:Lorg/graalvm/compiler/nodes/FrameState;
         2: .line 60
            return
        end local 2 // org.graalvm.compiler.nodes.FrameState stateBefore
        end local 1 // org.graalvm.compiler.graph.NodeClass c
        end local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    3     0         this  Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;
            0    3     1            c  Lorg/graalvm/compiler/graph/NodeClass<+Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;>;
            0    3     2  stateBefore  Lorg/graalvm/compiler/nodes/FrameState;
    Signature: (Lorg/graalvm/compiler/graph/NodeClass<+Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;>;Lorg/graalvm/compiler/nodes/FrameState;)V
    MethodParameters:
             Name  Flags
      c            
      stateBefore  

  public boolean canDeoptimize();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode this
         0: .line 64
            iconst_1
            ireturn
        end local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;

  public org.graalvm.compiler.nodes.FrameState stateBefore();
    descriptor: ()Lorg/graalvm/compiler/nodes/FrameState;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode this
         0: .line 69
            aload 0 /* this */
            getfield org.graalvm.compiler.nodes.AbstractDeoptimizeNode.stateBefore:Lorg/graalvm/compiler/nodes/FrameState;
            areturn
        end local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;

  public void setStateBefore(org.graalvm.compiler.nodes.FrameState);
    descriptor: (Lorg/graalvm/compiler/nodes/FrameState;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode this
        start local 1 // org.graalvm.compiler.nodes.FrameState f
         0: .line 74
            aload 0 /* this */
            aload 0 /* this */
            getfield org.graalvm.compiler.nodes.AbstractDeoptimizeNode.stateBefore:Lorg/graalvm/compiler/nodes/FrameState;
            aload 1 /* f */
            invokevirtual org.graalvm.compiler.nodes.AbstractDeoptimizeNode.updateUsages:(Lorg/graalvm/compiler/graph/Node;Lorg/graalvm/compiler/graph/Node;)V
         1: .line 75
            aload 0 /* this */
            aload 1 /* f */
            putfield org.graalvm.compiler.nodes.AbstractDeoptimizeNode.stateBefore:Lorg/graalvm/compiler/nodes/FrameState;
         2: .line 76
            return
        end local 1 // org.graalvm.compiler.nodes.FrameState f
        end local 0 // org.graalvm.compiler.nodes.AbstractDeoptimizeNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/graalvm/compiler/nodes/AbstractDeoptimizeNode;
            0    3     1     f  Lorg/graalvm/compiler/nodes/FrameState;
    MethodParameters:
      Name  Flags
      f     

  public abstract org.graalvm.compiler.nodes.ValueNode getActionAndReason(jdk.vm.ci.meta.MetaAccessProvider);
    descriptor: (Ljdk/vm/ci/meta/MetaAccessProvider;)Lorg/graalvm/compiler/nodes/ValueNode;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
            Name  Flags
      metaAccess  

  public abstract org.graalvm.compiler.nodes.ValueNode getSpeculation(jdk.vm.ci.meta.MetaAccessProvider);
    descriptor: (Ljdk/vm/ci/meta/MetaAccessProvider;)Lorg/graalvm/compiler/nodes/ValueNode;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
            Name  Flags
      metaAccess  
}
SourceFile: "AbstractDeoptimizeNode.java"
InnerClasses:
  public abstract OptionalInput = org.graalvm.compiler.graph.Node$OptionalInput of org.graalvm.compiler.graph.Node
  public abstract DeoptBefore = org.graalvm.compiler.nodes.DeoptimizingNode$DeoptBefore of org.graalvm.compiler.nodes.DeoptimizingNode
    RuntimeVisibleAnnotations: 
      org.graalvm.compiler.nodeinfo.NodeInfo(cycles = org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_UNKNOWN:Lorg/graalvm/compiler/nodeinfo/NodeCycles;, cyclesRationale = "The cycles for a deopt are as high as possible as we continue execution in the interpreter, but they pollute the cost model, thus we do not care about their cycles.", size = org.graalvm.compiler.nodeinfo.NodeSize.SIZE_UNKNOWN:Lorg/graalvm/compiler/nodeinfo/NodeSize;, sizeRationale = "Deopts carry the meta information necessary to map the state back in the interpreter, but they pollute the cost model,thus we do not care about their size.")