https://www.graalvm.org/ 
public final class com.oracle.svm.core.graal.amd64.AMD64ReservedRegisters extends com.oracle.svm.core.ReservedRegisters
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.oracle.svm.core.graal.amd64.AMD64ReservedRegisters
  super_class: com.oracle.svm.core.ReservedRegisters
{
  public static final jdk.vm.ci.code.Register THREAD_REGISTER_CANDIDATE;
    descriptor: Ljdk/vm/ci/code/Register;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final jdk.vm.ci.code.Register HEAP_BASE_REGISTER_CANDIDATE;
    descriptor: Ljdk/vm/ci/code/Register;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 40
            getstatic jdk.vm.ci.amd64.AMD64.r15:Ljdk/vm/ci/code/Register;
            putstatic com.oracle.svm.core.graal.amd64.AMD64ReservedRegisters.THREAD_REGISTER_CANDIDATE:Ljdk/vm/ci/code/Register;
         1: .line 41
            getstatic jdk.vm.ci.amd64.AMD64.r14:Ljdk/vm/ci/code/Register;
            putstatic com.oracle.svm.core.graal.amd64.AMD64ReservedRegisters.HEAP_BASE_REGISTER_CANDIDATE:Ljdk/vm/ci/code/Register;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // com.oracle.svm.core.graal.amd64.AMD64ReservedRegisters this
         0: .line 45
            aload 0 /* this */
            getstatic jdk.vm.ci.amd64.AMD64.rsp:Ljdk/vm/ci/code/Register;
            getstatic com.oracle.svm.core.graal.amd64.AMD64ReservedRegisters.THREAD_REGISTER_CANDIDATE:Ljdk/vm/ci/code/Register;
            getstatic com.oracle.svm.core.graal.amd64.AMD64ReservedRegisters.HEAP_BASE_REGISTER_CANDIDATE:Ljdk/vm/ci/code/Register;
            invokespecial com.oracle.svm.core.ReservedRegisters.<init>:(Ljdk/vm/ci/code/Register;Ljdk/vm/ci/code/Register;Ljdk/vm/ci/code/Register;)V
         1: .line 46
            return
        end local 0 // com.oracle.svm.core.graal.amd64.AMD64ReservedRegisters this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/svm/core/graal/amd64/AMD64ReservedRegisters;
    RuntimeVisibleAnnotations: 
      org.graalvm.nativeimage.Platforms(value = {Lorg/graalvm/nativeimage/Platform$HOSTED_ONLY;})
}
SourceFile: "AMD64ReservedRegisters.java"