https://www.graalvm.org/ 
public final class org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp extends org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction implements org.graalvm.compiler.lir.StandardOp$NullCheck
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp
  super_class: org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction
{
  public static final org.graalvm.compiler.lir.LIRInstructionClass<org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp> TYPE;
    descriptor: Lorg/graalvm/compiler/lir/LIRInstructionClass;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Signature: Lorg/graalvm/compiler/lir/LIRInstructionClass<Lorg/graalvm/compiler/lir/aarch64/AArch64Move$NullCheckOp;>;

  protected org.graalvm.compiler.lir.aarch64.AArch64AddressValue address;
    descriptor: Lorg/graalvm/compiler/lir/aarch64/AArch64AddressValue;
    flags: (0x0004) ACC_PROTECTED
    RuntimeVisibleAnnotations: 
      org.graalvm.compiler.lir.LIRInstruction$Use(value = {org.graalvm.compiler.lir.LIRInstruction$OperandFlag.COMPOSITE:Lorg/graalvm/compiler/lir/LIRInstruction$OperandFlag;})

  protected org.graalvm.compiler.lir.LIRFrameState state;
    descriptor: Lorg/graalvm/compiler/lir/LIRFrameState;
    flags: (0x0004) ACC_PROTECTED
    RuntimeVisibleAnnotations: 
      org.graalvm.compiler.lir.LIRInstruction$State()

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 417
            ldc Lorg/graalvm/compiler/lir/aarch64/AArch64Move$NullCheckOp;
            invokestatic org.graalvm.compiler.lir.LIRInstructionClass.create:(Ljava/lang/Class;)Lorg/graalvm/compiler/lir/LIRInstructionClass;
            putstatic org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp.TYPE:Lorg/graalvm/compiler/lir/LIRInstructionClass;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.graalvm.compiler.lir.aarch64.AArch64AddressValue, org.graalvm.compiler.lir.LIRFrameState);
    descriptor: (Lorg/graalvm/compiler/lir/aarch64/AArch64AddressValue;Lorg/graalvm/compiler/lir/LIRFrameState;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp this
        start local 1 // org.graalvm.compiler.lir.aarch64.AArch64AddressValue address
        start local 2 // org.graalvm.compiler.lir.LIRFrameState state
         0: .line 423
            aload 0 /* this */
            getstatic org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp.TYPE:Lorg/graalvm/compiler/lir/LIRInstructionClass;
            invokespecial org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction.<init>:(Lorg/graalvm/compiler/lir/LIRInstructionClass;)V
         1: .line 424
            aload 0 /* this */
            aload 1 /* address */
            putfield org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp.address:Lorg/graalvm/compiler/lir/aarch64/AArch64AddressValue;
         2: .line 425
            aload 0 /* this */
            aload 2 /* state */
            putfield org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp.state:Lorg/graalvm/compiler/lir/LIRFrameState;
         3: .line 426
            return
        end local 2 // org.graalvm.compiler.lir.LIRFrameState state
        end local 1 // org.graalvm.compiler.lir.aarch64.AArch64AddressValue address
        end local 0 // org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lorg/graalvm/compiler/lir/aarch64/AArch64Move$NullCheckOp;
            0    4     1  address  Lorg/graalvm/compiler/lir/aarch64/AArch64AddressValue;
            0    4     2    state  Lorg/graalvm/compiler/lir/LIRFrameState;
    MethodParameters:
         Name  Flags
      address  
      state    

  public void emitCode(org.graalvm.compiler.lir.asm.CompilationResultBuilder, org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler);
    descriptor: (Lorg/graalvm/compiler/lir/asm/CompilationResultBuilder;Lorg/graalvm/compiler/asm/aarch64/AArch64MacroAssembler;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=3
        start local 0 // org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp this
        start local 1 // org.graalvm.compiler.lir.asm.CompilationResultBuilder crb
        start local 2 // org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler masm
         0: .line 430
            aload 2 /* masm */
            invokevirtual org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.position:()I
            istore 3 /* prePosition */
        start local 3 // int prePosition
         1: .line 431
            aload 2 /* masm */
            bipush 64
            getstatic jdk.vm.ci.aarch64.AArch64.zr:Ljdk/vm/ci/code/Register;
            aload 0 /* this */
            getfield org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp.address:Lorg/graalvm/compiler/lir/aarch64/AArch64AddressValue;
            invokevirtual org.graalvm.compiler.lir.aarch64.AArch64AddressValue.toAddress:()Lorg/graalvm/compiler/asm/aarch64/AArch64Address;
            invokevirtual org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.ldr:(ILjdk/vm/ci/code/Register;Lorg/graalvm/compiler/asm/aarch64/AArch64Address;)V
         2: .line 432
            iload 3 /* prePosition */
            istore 4 /* implicitExceptionPosition */
        start local 4 // int implicitExceptionPosition
         3: .line 434
            iload 3 /* prePosition */
            aload 2 /* masm */
            invokevirtual org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.position:()I
            if_icmpne 7
            aload 2 /* masm */
            invokevirtual org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.isImmLoadStoreMerged:()Z
            ifeq 7
         4: .line 435
            iload 3 /* prePosition */
            iconst_4
            isub
            istore 4 /* implicitExceptionPosition */
         5: .line 436
            aload 1 /* crb */
            iload 4 /* implicitExceptionPosition */
            invokevirtual org.graalvm.compiler.lir.asm.CompilationResultBuilder.isImplicitExceptionExist:(I)Z
            ifeq 7
         6: .line 437
            return
         7: .line 440
      StackMap locals: int int
      StackMap stack:
            aload 1 /* crb */
            iload 4 /* implicitExceptionPosition */
            aload 0 /* this */
            getfield org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp.state:Lorg/graalvm/compiler/lir/LIRFrameState;
            invokevirtual org.graalvm.compiler.lir.asm.CompilationResultBuilder.recordImplicitException:(ILorg/graalvm/compiler/lir/LIRFrameState;)V
         8: .line 441
            return
        end local 4 // int implicitExceptionPosition
        end local 3 // int prePosition
        end local 2 // org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler masm
        end local 1 // org.graalvm.compiler.lir.asm.CompilationResultBuilder crb
        end local 0 // org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp this
      LocalVariableTable:
        Start  End  Slot                       Name  Signature
            0    9     0                       this  Lorg/graalvm/compiler/lir/aarch64/AArch64Move$NullCheckOp;
            0    9     1                        crb  Lorg/graalvm/compiler/lir/asm/CompilationResultBuilder;
            0    9     2                       masm  Lorg/graalvm/compiler/asm/aarch64/AArch64MacroAssembler;
            1    9     3                prePosition  I
            3    9     4  implicitExceptionPosition  I
    MethodParameters:
      Name  Flags
      crb   
      masm  

  public jdk.vm.ci.meta.Value getCheckedValue();
    descriptor: ()Ljdk/vm/ci/meta/Value;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp this
         0: .line 445
            aload 0 /* this */
            getfield org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp.address:Lorg/graalvm/compiler/lir/aarch64/AArch64AddressValue;
            getfield org.graalvm.compiler.lir.aarch64.AArch64AddressValue.base:Ljdk/vm/ci/meta/AllocatableValue;
            areturn
        end local 0 // org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/lir/aarch64/AArch64Move$NullCheckOp;

  public org.graalvm.compiler.lir.LIRFrameState getState();
    descriptor: ()Lorg/graalvm/compiler/lir/LIRFrameState;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp this
         0: .line 450
            aload 0 /* this */
            getfield org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp.state:Lorg/graalvm/compiler/lir/LIRFrameState;
            areturn
        end local 0 // org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/compiler/lir/aarch64/AArch64Move$NullCheckOp;
}
SourceFile: "AArch64Move.java"
NestHost: org.graalvm.compiler.lir.aarch64.AArch64Move
InnerClasses:
  public final OperandFlag = org.graalvm.compiler.lir.LIRInstruction$OperandFlag of org.graalvm.compiler.lir.LIRInstruction
  public abstract State = org.graalvm.compiler.lir.LIRInstruction$State of org.graalvm.compiler.lir.LIRInstruction
  public abstract Use = org.graalvm.compiler.lir.LIRInstruction$Use of org.graalvm.compiler.lir.LIRInstruction
  public abstract NullCheck = org.graalvm.compiler.lir.StandardOp$NullCheck of org.graalvm.compiler.lir.StandardOp
  public final NullCheckOp = org.graalvm.compiler.lir.aarch64.AArch64Move$NullCheckOp of org.graalvm.compiler.lir.aarch64.AArch64Move