https://www.graalvm.org/ 
public class com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering extends org.graalvm.compiler.core.amd64.AMD64CompressAddressLowering
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering
  super_class: org.graalvm.compiler.core.amd64.AMD64CompressAddressLowering
{
  private final long heapBase;
    descriptor: J
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final jdk.vm.ci.code.Register heapBaseRegister;
    descriptor: Ljdk/vm/ci/code/Register;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 39
            ldc Lcom/oracle/svm/core/graal/amd64/SubstrateAMD64AddressLowering;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.graalvm.compiler.core.common.CompressEncoding);
    descriptor: (Lorg/graalvm/compiler/core/common/CompressEncoding;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering this
        start local 1 // org.graalvm.compiler.core.common.CompressEncoding encoding
         0: .line 43
            aload 0 /* this */
            invokespecial org.graalvm.compiler.core.amd64.AMD64CompressAddressLowering.<init>:()V
         1: .line 44
            aload 0 /* this */
            aload 1 /* encoding */
            invokevirtual org.graalvm.compiler.core.common.CompressEncoding.getBase:()J
            putfield com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering.heapBase:J
         2: .line 45
            aload 0 /* this */
            invokestatic com.oracle.svm.core.ReservedRegisters.singleton:()Lcom/oracle/svm/core/ReservedRegisters;
            invokevirtual com.oracle.svm.core.ReservedRegisters.getHeapBaseRegister:()Ljdk/vm/ci/code/Register;
            putfield com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering.heapBaseRegister:Ljdk/vm/ci/code/Register;
         3: .line 46
            return
        end local 1 // org.graalvm.compiler.core.common.CompressEncoding encoding
        end local 0 // com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    4     0      this  Lcom/oracle/svm/core/graal/amd64/SubstrateAMD64AddressLowering;
            0    4     1  encoding  Lorg/graalvm/compiler/core/common/CompressEncoding;
    MethodParameters:
          Name  Flags
      encoding  

  protected final boolean improveUncompression(org.graalvm.compiler.core.amd64.AMD64AddressNode, org.graalvm.compiler.nodes.CompressionNode, org.graalvm.compiler.nodes.ValueNode);
    descriptor: (Lorg/graalvm/compiler/core/amd64/AMD64AddressNode;Lorg/graalvm/compiler/nodes/CompressionNode;Lorg/graalvm/compiler/nodes/ValueNode;)Z
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Code:
      stack=4, locals=9, args_size=4
        start local 0 // com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering this
        start local 1 // org.graalvm.compiler.core.amd64.AMD64AddressNode addr
        start local 2 // org.graalvm.compiler.nodes.CompressionNode compression
        start local 3 // org.graalvm.compiler.nodes.ValueNode other
         0: .line 50
            getstatic com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering.$assertionsDisabled:Z
            ifne 1
            getstatic com.oracle.svm.core.SubstrateOptions.SpawnIsolates:Lcom/oracle/svm/core/option/HostedOptionKey;
            invokevirtual com.oracle.svm.core.option.HostedOptionKey.getValue:()Ljava/lang/Object;
            checkcast java.lang.Boolean
            invokevirtual java.lang.Boolean.booleanValue:()Z
            ifne 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 52
      StackMap locals:
      StackMap stack:
            aload 2 /* compression */
            invokevirtual org.graalvm.compiler.nodes.CompressionNode.getEncoding:()Lorg/graalvm/compiler/core/common/CompressEncoding;
            astore 4 /* encoding */
        start local 4 // org.graalvm.compiler.core.common.CompressEncoding encoding
         2: .line 53
            aload 4 /* encoding */
            invokevirtual org.graalvm.compiler.core.common.CompressEncoding.getShift:()I
            invokestatic org.graalvm.compiler.asm.amd64.AMD64Address$Scale.isScaleShiftSupported:(I)Z
            ifne 4
         3: .line 54
            iconst_0
            ireturn
         4: .line 57
      StackMap locals: org.graalvm.compiler.core.common.CompressEncoding
      StackMap stack:
            aload 4 /* encoding */
            invokevirtual org.graalvm.compiler.core.common.CompressEncoding.getBase:()J
            lstore 5 /* encodingBase */
        start local 5 // long encodingBase
         5: .line 58
            aload 3 /* other */
            astore 7 /* base */
        start local 7 // org.graalvm.compiler.nodes.ValueNode base
         6: .line 59
            aload 0 /* this */
            getfield com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering.heapBaseRegister:Ljdk/vm/ci/code/Register;
            ifnull 11
            lload 5 /* encodingBase */
            aload 0 /* this */
            getfield com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering.heapBase:J
            lcmp
            ifne 11
         7: .line 60
            aload 3 /* other */
            ifnull 9
         8: .line 61
            iconst_0
            ireturn
         9: .line 63
      StackMap locals: long org.graalvm.compiler.nodes.ValueNode
      StackMap stack:
            aload 2 /* compression */
            invokevirtual org.graalvm.compiler.nodes.CompressionNode.graph:()Lorg/graalvm/compiler/nodes/StructuredGraph;
            new org.graalvm.compiler.core.amd64.AMD64CompressAddressLowering$HeapBaseNode
            dup
            aload 0 /* this */
            getfield com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering.heapBaseRegister:Ljdk/vm/ci/code/Register;
            invokespecial org.graalvm.compiler.core.amd64.AMD64CompressAddressLowering$HeapBaseNode.<init>:(Ljdk/vm/ci/code/Register;)V
            invokevirtual org.graalvm.compiler.nodes.StructuredGraph.unique:(Lorg/graalvm/compiler/graph/Node;)Lorg/graalvm/compiler/graph/Node;
            checkcast org.graalvm.compiler.nodes.ValueNode
            astore 7 /* base */
        10: .line 64
            goto 14
      StackMap locals:
      StackMap stack:
        11: lload 5 /* encodingBase */
            lconst_0
            lcmp
            ifeq 14
        12: .line 65
            aload 1 /* addr */
            lload 5 /* encodingBase */
            iconst_0
            invokestatic com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering.updateDisplacement:(Lorg/graalvm/compiler/core/amd64/AMD64AddressNode;JZ)Z
            ifne 14
        13: .line 66
            iconst_0
            ireturn
        14: .line 70
      StackMap locals:
      StackMap stack:
            aload 4 /* encoding */
            invokevirtual org.graalvm.compiler.core.common.CompressEncoding.getShift:()I
            invokestatic org.graalvm.compiler.asm.amd64.AMD64Address$Scale.fromShift:(I)Lorg/graalvm/compiler/asm/amd64/AMD64Address$Scale;
            astore 8 /* scale */
        start local 8 // org.graalvm.compiler.asm.amd64.AMD64Address$Scale scale
        15: .line 71
            aload 1 /* addr */
            aload 7 /* base */
            invokevirtual org.graalvm.compiler.core.amd64.AMD64AddressNode.setBase:(Lorg/graalvm/compiler/nodes/ValueNode;)V
        16: .line 72
            aload 1 /* addr */
            aload 8 /* scale */
            invokevirtual org.graalvm.compiler.core.amd64.AMD64AddressNode.setScale:(Lorg/graalvm/compiler/asm/amd64/AMD64Address$Scale;)V
        17: .line 73
            aload 1 /* addr */
            aload 2 /* compression */
            invokevirtual org.graalvm.compiler.nodes.CompressionNode.getValue:()Lorg/graalvm/compiler/nodes/ValueNode;
            invokevirtual org.graalvm.compiler.core.amd64.AMD64AddressNode.setIndex:(Lorg/graalvm/compiler/nodes/ValueNode;)V
        18: .line 74
            iconst_1
            ireturn
        end local 8 // org.graalvm.compiler.asm.amd64.AMD64Address$Scale scale
        end local 7 // org.graalvm.compiler.nodes.ValueNode base
        end local 5 // long encodingBase
        end local 4 // org.graalvm.compiler.core.common.CompressEncoding encoding
        end local 3 // org.graalvm.compiler.nodes.ValueNode other
        end local 2 // org.graalvm.compiler.nodes.CompressionNode compression
        end local 1 // org.graalvm.compiler.core.amd64.AMD64AddressNode addr
        end local 0 // com.oracle.svm.core.graal.amd64.SubstrateAMD64AddressLowering this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   19     0          this  Lcom/oracle/svm/core/graal/amd64/SubstrateAMD64AddressLowering;
            0   19     1          addr  Lorg/graalvm/compiler/core/amd64/AMD64AddressNode;
            0   19     2   compression  Lorg/graalvm/compiler/nodes/CompressionNode;
            0   19     3         other  Lorg/graalvm/compiler/nodes/ValueNode;
            2   19     4      encoding  Lorg/graalvm/compiler/core/common/CompressEncoding;
            5   19     5  encodingBase  J
            6   19     7          base  Lorg/graalvm/compiler/nodes/ValueNode;
           15   19     8         scale  Lorg/graalvm/compiler/asm/amd64/AMD64Address$Scale;
    MethodParameters:
             Name  Flags
      addr         
      compression  
      other        
}
SourceFile: "SubstrateAMD64AddressLowering.java"
InnerClasses:
  public final Scale = org.graalvm.compiler.asm.amd64.AMD64Address$Scale of org.graalvm.compiler.asm.amd64.AMD64Address
  public HeapBaseNode = org.graalvm.compiler.core.amd64.AMD64CompressAddressLowering$HeapBaseNode of org.graalvm.compiler.core.amd64.AMD64CompressAddressLowering
  public abstract ValueNumberable = org.graalvm.compiler.graph.Node$ValueNumberable of org.graalvm.compiler.graph.Node