https://www.graalvm.org/ 
final class org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp extends org.graalvm.compiler.lir.LIRInstruction
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp
  super_class: org.graalvm.compiler.lir.LIRInstruction
{
  public static final org.graalvm.compiler.lir.LIRInstructionClass<org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp> TYPE;
    descriptor: Lorg/graalvm/compiler/lir/LIRInstructionClass;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Signature: Lorg/graalvm/compiler/lir/LIRInstructionClass<Lorg/graalvm/compiler/hotspot/amd64/AMD64HotSpotLIRGenerator$RescueSlotDummyOp;>;

  private jdk.vm.ci.meta.AllocatableValue slot;
    descriptor: Ljdk/vm/ci/meta/AllocatableValue;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      org.graalvm.compiler.lir.LIRInstruction$Alive(value = {org.graalvm.compiler.lir.LIRInstruction$OperandFlag.STACK:Lorg/graalvm/compiler/lir/LIRInstruction$OperandFlag;, org.graalvm.compiler.lir.LIRInstruction$OperandFlag.UNINITIALIZED:Lorg/graalvm/compiler/lir/LIRInstruction$OperandFlag;})

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 204
            ldc Lorg/graalvm/compiler/hotspot/amd64/AMD64HotSpotLIRGenerator$RescueSlotDummyOp;
            invokestatic org.graalvm.compiler.lir.LIRInstructionClass.create:(Ljava/lang/Class;)Lorg/graalvm/compiler/lir/LIRInstructionClass;
            putstatic org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp.TYPE:Lorg/graalvm/compiler/lir/LIRInstructionClass;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(org.graalvm.compiler.lir.framemap.FrameMapBuilder, org.graalvm.compiler.core.common.LIRKind);
    descriptor: (Lorg/graalvm/compiler/lir/framemap/FrameMapBuilder;Lorg/graalvm/compiler/core/common/LIRKind;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp this
        start local 1 // org.graalvm.compiler.lir.framemap.FrameMapBuilder frameMapBuilder
        start local 2 // org.graalvm.compiler.core.common.LIRKind kind
         0: .line 209
            aload 0 /* this */
            getstatic org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp.TYPE:Lorg/graalvm/compiler/lir/LIRInstructionClass;
            invokespecial org.graalvm.compiler.lir.LIRInstruction.<init>:(Lorg/graalvm/compiler/lir/LIRInstructionClass;)V
         1: .line 210
            aload 0 /* this */
            aload 1 /* frameMapBuilder */
            aload 2 /* kind */
            invokevirtual org.graalvm.compiler.lir.framemap.FrameMapBuilder.allocateSpillSlot:(Ljdk/vm/ci/meta/ValueKind;)Lorg/graalvm/compiler/lir/VirtualStackSlot;
            putfield org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp.slot:Ljdk/vm/ci/meta/AllocatableValue;
         2: .line 211
            return
        end local 2 // org.graalvm.compiler.core.common.LIRKind kind
        end local 1 // org.graalvm.compiler.lir.framemap.FrameMapBuilder frameMapBuilder
        end local 0 // org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    3     0             this  Lorg/graalvm/compiler/hotspot/amd64/AMD64HotSpotLIRGenerator$RescueSlotDummyOp;
            0    3     1  frameMapBuilder  Lorg/graalvm/compiler/lir/framemap/FrameMapBuilder;
            0    3     2             kind  Lorg/graalvm/compiler/core/common/LIRKind;
    MethodParameters:
                 Name  Flags
      frameMapBuilder  
      kind             

  public jdk.vm.ci.meta.AllocatableValue getSlot();
    descriptor: ()Ljdk/vm/ci/meta/AllocatableValue;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp this
         0: .line 214
            aload 0 /* this */
            getfield org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp.slot:Ljdk/vm/ci/meta/AllocatableValue;
            areturn
        end local 0 // org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/hotspot/amd64/AMD64HotSpotLIRGenerator$RescueSlotDummyOp;

  public void emitCode(org.graalvm.compiler.lir.asm.CompilationResultBuilder);
    descriptor: (Lorg/graalvm/compiler/lir/asm/CompilationResultBuilder;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=0, locals=2, args_size=2
        start local 0 // org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp this
        start local 1 // org.graalvm.compiler.lir.asm.CompilationResultBuilder crb
         0: .line 219
            return
        end local 1 // org.graalvm.compiler.lir.asm.CompilationResultBuilder crb
        end local 0 // org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/hotspot/amd64/AMD64HotSpotLIRGenerator$RescueSlotDummyOp;
            0    1     1   crb  Lorg/graalvm/compiler/lir/asm/CompilationResultBuilder;
    MethodParameters:
      Name  Flags
      crb   
}
SourceFile: "AMD64HotSpotLIRGenerator.java"
NestHost: org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator
InnerClasses:
  private final RescueSlotDummyOp = org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator$RescueSlotDummyOp of org.graalvm.compiler.hotspot.amd64.AMD64HotSpotLIRGenerator
  public abstract Alive = org.graalvm.compiler.lir.LIRInstruction$Alive of org.graalvm.compiler.lir.LIRInstruction
  public final OperandFlag = org.graalvm.compiler.lir.LIRInstruction$OperandFlag of org.graalvm.compiler.lir.LIRInstruction