https://www.graalvm.org/ 
public abstract class org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction extends org.graalvm.compiler.lir.amd64.AMD64LIRInstruction
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction
  super_class: org.graalvm.compiler.lir.amd64.AMD64LIRInstruction
{
  public static final org.graalvm.compiler.lir.LIRInstructionClass<org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction> 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/amd64/vector/AMD64VectorInstruction;>;

  protected final org.graalvm.compiler.asm.amd64.AVXKind$AVXSize size;
    descriptor: Lorg/graalvm/compiler/asm/amd64/AVXKind$AVXSize;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 33
            ldc Lorg/graalvm/compiler/lir/amd64/vector/AMD64VectorInstruction;
            invokestatic org.graalvm.compiler.lir.LIRInstructionClass.create:(Ljava/lang/Class;)Lorg/graalvm/compiler/lir/LIRInstructionClass;
            putstatic org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction.TYPE:Lorg/graalvm/compiler/lir/LIRInstructionClass;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.graalvm.compiler.lir.LIRInstructionClass<? extends org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction>, org.graalvm.compiler.asm.amd64.AVXKind$AVXSize);
    descriptor: (Lorg/graalvm/compiler/lir/LIRInstructionClass;Lorg/graalvm/compiler/asm/amd64/AVXKind$AVXSize;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction this
        start local 1 // org.graalvm.compiler.lir.LIRInstructionClass c
        start local 2 // org.graalvm.compiler.asm.amd64.AVXKind$AVXSize size
         0: .line 37
            aload 0 /* this */
            aload 1 /* c */
            invokespecial org.graalvm.compiler.lir.amd64.AMD64LIRInstruction.<init>:(Lorg/graalvm/compiler/lir/LIRInstructionClass;)V
         1: .line 38
            aload 0 /* this */
            aload 2 /* size */
            putfield org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction.size:Lorg/graalvm/compiler/asm/amd64/AVXKind$AVXSize;
         2: .line 39
            return
        end local 2 // org.graalvm.compiler.asm.amd64.AVXKind$AVXSize size
        end local 1 // org.graalvm.compiler.lir.LIRInstructionClass c
        end local 0 // org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/graalvm/compiler/lir/amd64/vector/AMD64VectorInstruction;
            0    3     1     c  Lorg/graalvm/compiler/lir/LIRInstructionClass<+Lorg/graalvm/compiler/lir/amd64/vector/AMD64VectorInstruction;>;
            0    3     2  size  Lorg/graalvm/compiler/asm/amd64/AVXKind$AVXSize;
    Signature: (Lorg/graalvm/compiler/lir/LIRInstructionClass<+Lorg/graalvm/compiler/lir/amd64/vector/AMD64VectorInstruction;>;Lorg/graalvm/compiler/asm/amd64/AVXKind$AVXSize;)V
    MethodParameters:
      Name  Flags
      c     
      size  

  public boolean needsClearUpperVectorRegisters();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction this
         0: .line 43
            aload 0 /* this */
            getfield org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction.size:Lorg/graalvm/compiler/asm/amd64/AVXKind$AVXSize;
            getstatic org.graalvm.compiler.asm.amd64.AVXKind$AVXSize.YMM:Lorg/graalvm/compiler/asm/amd64/AVXKind$AVXSize;
            if_acmpeq 1
            aload 0 /* this */
            getfield org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction.size:Lorg/graalvm/compiler/asm/amd64/AVXKind$AVXSize;
            getstatic org.graalvm.compiler.asm.amd64.AVXKind$AVXSize.ZMM:Lorg/graalvm/compiler/asm/amd64/AVXKind$AVXSize;
            if_acmpeq 1
            iconst_0
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_1
            ireturn
        end local 0 // org.graalvm.compiler.lir.amd64.vector.AMD64VectorInstruction this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/graalvm/compiler/lir/amd64/vector/AMD64VectorInstruction;
}
SourceFile: "AMD64VectorInstruction.java"
InnerClasses:
  public final AVXSize = org.graalvm.compiler.asm.amd64.AVXKind$AVXSize of org.graalvm.compiler.asm.amd64.AVXKind