remove cloneType

src/main/scala/amba/axis/Bundles.scala

@@ -24,7 +24,6 @@ case class AXISDataField(width: Int) extends BundleField(AXISData) {
 }
 
 class AXISBundleBits(val params: AXISBundleParameters) extends BundleMap(AXISBundle.keys(params)) {
-  override def cloneType: this.type = (new AXISBundleBits(params)).asInstanceOf[this.type]
   def last = if (params.hasLast) apply(AXISLast) else true.B
   def id   = if (params.hasId)   apply(AXISId)   else 0.U
   def dest = if (params.hasDest) apply(AXISDest) else 0.U
@@ -34,7 +33,6 @@ class AXISBundleBits(val params: AXISBundleParameters) extends BundleMap(AXISBun
 }
 
 class AXISBundle(val params: AXISBundleParameters) extends IrrevocableIO(new AXISBundleBits(params)) {
-  override def cloneType: this.type = (new AXISBundle(params)).asInstanceOf[this.type]
 }
 
 object AXISBundle {

src/main/scala/devices/debug/DMI.scala

@@ -42,7 +42,6 @@ class DMIReq(addrBits : Int) extends Bundle {
   val data = UInt(DMIConsts.dmiDataSize.W)
   val op   = UInt(DMIConsts.dmiOpSize.W)
 
-  override def cloneType = new DMIReq(addrBits).asInstanceOf[this.type]
 }
 
 /** Structure to define the contents of a Debug Bus Response

src/main/scala/devices/debug/DebugTransport.scala

@@ -40,15 +40,13 @@ class DMIAccessUpdate(addrBits: Int) extends Bundle {
   val data = UInt(DMIConsts.dmiDataSize.W)
   val op = UInt(DMIConsts.dmiOpSize.W)
 
-  override def cloneType = new DMIAccessUpdate(addrBits).asInstanceOf[this.type]
 }
 
 class DMIAccessCapture(addrBits: Int) extends Bundle {
   val addr = UInt(addrBits.W)
   val data = UInt(DMIConsts.dmiDataSize.W)
   val resp = UInt(DMIConsts.dmiRespSize.W)
 
-  override def cloneType = new DMIAccessCapture(addrBits).asInstanceOf[this.type]
 
 }
 

src/main/scala/jtag/JtagShifter.scala

@@ -36,7 +36,6 @@ trait ChainIO extends Bundle {
 class Capture[+T <: Data](gen: T) extends Bundle {
   val bits = Input(gen)  // data to capture, should be always valid
   val capture = Output(Bool())  // will be high in capture state (single cycle), captured on following rising edge
-  override def cloneType = Capture(gen).asInstanceOf[this.type]
 }
 
 object Capture {

src/main/scala/jtag/JtagTap.scala

@@ -16,7 +16,6 @@ class JTAGIO(hasTRSTn: Boolean = false) extends Bundle {
   val TDI   = Output(Bool())
   val TDO   = Input(new Tristate())
 
-  override def cloneType = new JTAGIO(hasTRSTn).asInstanceOf[this.type]
 }
 
 /** JTAG block output signals.
@@ -26,7 +25,6 @@ class JtagOutput(irLength: Int) extends Bundle {
   val instruction = Output(UInt(irLength.W))  // current active instruction
   val tapIsInTestLogicReset = Output(Bool())  // synchronously asserted in Test-Logic-Reset state, should NOT hold the FSM in reset
 
-  override def cloneType = new JtagOutput(irLength).asInstanceOf[this.type]
 }
 
 class JtagControl extends Bundle {
@@ -42,7 +40,6 @@ class JtagBlockIO(irLength: Int, hasIdcode:Boolean = true) extends Bundle {
   val output = new JtagOutput(irLength)
   val idcode = if (hasIdcode) Some(Input(new JTAGIdcodeBundle())) else None
 
-  override def cloneType = new JtagBlockIO(irLength, hasIdcode).asInstanceOf[this.type]
 }
 
 /** Internal controller block IO with data shift outputs.
@@ -51,7 +48,6 @@ class JtagControllerIO(irLength: Int) extends JtagBlockIO(irLength, false) {
   val dataChainOut = Output(new ShifterIO)
   val dataChainIn = Input(new ShifterIO)
 
-  override def cloneType = new JtagControllerIO(irLength).asInstanceOf[this.type]
 }
 
 /** JTAG TAP controller internal block, responsible for instruction decode and data register chain

src/main/scala/regmapper/RegisterCrossing.scala

@@ -53,7 +53,6 @@ class RegisterWriteIO[T <: Data](gen: T) extends Bundle {
   val request  = Decoupled(gen).flip
   val response = Irrevocable(Bool()) // ignore .bits
 
-  override def cloneType = new RegisterWriteIO(gen).asInstanceOf[this.type]
 }
 
 // To turn off=>on a domain:
@@ -129,7 +128,6 @@ class RegisterReadIO[T <: Data](gen: T) extends Bundle {
   val request  = Decoupled(Bool()).flip // ignore .bits
   val response = Irrevocable(gen)
 
-  override def cloneType = new RegisterReadIO(gen).asInstanceOf[this.type]
 }
 
 class RegisterReadCrossingIO[T <: Data](gen: T) extends Bundle {

src/main/scala/rocket/ICache.scala

@@ -104,7 +104,6 @@ class ICacheResp(outer: ICache) extends Bundle {
   val replay = Bool()
   val ae = Bool()
 
-  override def cloneType = new ICacheResp(outer).asInstanceOf[this.type]
 }
 
 class ICachePerfEvents extends Bundle {

src/main/scala/rocket/Multiplier.scala

@@ -15,13 +15,11 @@ class MultiplierReq(dataBits: Int, tagBits: Int) extends Bundle {
   val in1 = Bits(dataBits.W)
   val in2 = Bits(dataBits.W)
   val tag = UInt(tagBits.W)
-  override def cloneType = new MultiplierReq(dataBits, tagBits).asInstanceOf[this.type]
 }
 
 class MultiplierResp(dataBits: Int, tagBits: Int) extends Bundle {
   val data = Bits(dataBits.W)
   val tag = UInt(tagBits.W)
-  override def cloneType = new MultiplierResp(dataBits, tagBits).asInstanceOf[this.type]
 }
 
 class MultiplierIO(val dataBits: Int, val tagBits: Int) extends Bundle {

src/main/scala/rocket/NBDcache.scala

@@ -48,7 +48,6 @@ class WritebackReq(params: TLBundleParameters)(implicit p: Parameters) extends L
   val way_en = Bits(width = nWays)
   val voluntary = Bool()
 
-  override def cloneType = new WritebackReq(params)(p).asInstanceOf[this.type]
 }
 
 class IOMSHR(id: Int)(implicit edge: TLEdgeOut, p: Parameters) extends L1HellaCacheModule()(p) {

src/main/scala/rocket/PTW.scala

@@ -110,7 +110,6 @@ class L2TLBEntry(nSets: Int)(implicit p: Parameters) extends CoreBundle()(p)
   val w = Bool()
   val r = Bool()
 
-  override def cloneType = new L2TLBEntry(nSets).asInstanceOf[this.type]
 }
 
 @chiselName

src/main/scala/rocket/TLB.scala

@@ -38,7 +38,6 @@ class TLBReq(lgMaxSize: Int)(implicit p: Parameters) extends CoreBundle()(p) {
   val prv = UInt(PRV.SZ.W)
   val v = Bool()
 
-  override def cloneType = new TLBReq(lgMaxSize).asInstanceOf[this.type]
 }
 
 class TLBExceptions(implicit p: Parameters) extends CoreBundle()(p) {

src/main/scala/tile/FPU.scala

@@ -231,7 +231,6 @@ class FPInput(implicit p: Parameters) extends CoreBundle()(p) with HasFPUCtrlSig
   val in2 = Bits(width = fLen+1)
   val in3 = Bits(width = fLen+1)
 
-  override def cloneType = new FPInput().asInstanceOf[this.type]
 }
 
 case class FType(exp: Int, sig: Int) {
@@ -283,7 +282,6 @@ case class FType(exp: Int, sig: Int) {
       val sign = Bool()
       val exp = UInt(expWidth.W)
       val sig = UInt((ieeeWidth-expWidth-1).W)
-      override def cloneType = new IEEEBundle().asInstanceOf[this.type]
     }
     new IEEEBundle
   }
@@ -452,7 +450,6 @@ class FPToInt(implicit p: Parameters) extends FPUModule()(p) with ShouldBeRetime
     val store = Bits(width = fLen)
     val toint = Bits(width = xLen)
     val exc = Bits(width = FPConstants.FLAGS_SZ)
-    override def cloneType = new Output().asInstanceOf[this.type]
   }
   val io = new Bundle {
     val in = Valid(new FPInput).flip
@@ -903,7 +900,6 @@ class FPU(cfg: FPUParams)(implicit p: Parameters) extends FPUModule()(p) {
     val typeTag = UInt(width = log2Up(floatTypes.size))
     val cp = Bool()
     val pipeid = UInt(width = log2Ceil(pipes.size))
-    override def cloneType: this.type = new WBInfo().asInstanceOf[this.type]
   }
 
   val wen = Reg(init=Bits(0, maxLatency-1))

src/main/scala/util/CreditedIO.scala

@@ -37,7 +37,6 @@ case class CreditedDelay(debit: Int, credit: Int)
   */
 final class CreditedIO[T <: Data](gen: T) extends Bundle
 {
-  override def cloneType: this.type = new CreditedIO(genType).asInstanceOf[this.type]
   def genType: T = gen
 
   val credit = Input (Bool()) // 1: a credit is given to the sender by the receiver

src/main/scala/util/HeterogeneousBag.scala

@@ -12,7 +12,6 @@ final case class HeterogeneousBag[T <: Data](elts: Seq[T]) extends Record with c
 
   val elements = ListMap(elts.zipWithIndex.map { case (n,i) => (i.toString, n) }:_*)
   override def cloneType: this.type = (new HeterogeneousBag(elts.map(_.chiselCloneType))).asInstanceOf[this.type]
-
   // IndexedSeq has its own hashCode/equals that we must not use
   override def hashCode: Int = super[Record].hashCode
   override def equals(that: Any): Boolean = super[Record].equals(that)

src/main/scala/util/RationalCrossing.scala

@@ -57,7 +57,6 @@ final class RationalIO[T <: Data](gen: T) extends Bundle
   val ready  = Input(Bool())
   val sink   = Input(UInt(2.W))
 
-  override def cloneType: this.type = new RationalIO(gen).asInstanceOf[this.type]
 }
 
 object RationalIO

src/main/scala/util/ReadyValidCancel.scala

@@ -19,7 +19,6 @@ class ValidCancel[+T <: Data](gen: T) extends Bundle {
   val lateCancel = Output(Bool())
   val bits       = Output(gen)
   def validQual(): Bool = earlyValid && !lateCancel
-  override def cloneType: this.type = ValidCancel(gen).asInstanceOf[this.type]
 
   /** Down-converts a ValidCancel output to a Valid bundle, dropping early/late timing split. */
   def andNotCancel(): Valid[T] = {
@@ -48,7 +47,6 @@ class ReadyValidCancel[+T <: Data](gen: T) extends ValidCancel(gen)
   val ready = Input(Bool())
   def mightFire(): Bool = ready && earlyValid
   def fire():      Bool = ready && validQual()
-  override def cloneType: this.type = ReadyValidCancel(gen).asInstanceOf[this.type]
 
   /** Down-converts a ReadyValidCancel output to a DecoupledIO bundle, dropping early/late timing split. */
   def asDecoupled(): DecoupledIO[T] = {

src/main/scala/util/ReorderQueue.scala

@@ -9,15 +9,11 @@ class ReorderQueueWrite[T <: Data](dType: T, tagWidth: Int) extends Bundle {
   val data = dType.cloneType
   val tag = UInt(width = tagWidth)
 
-  override def cloneType =
-    new ReorderQueueWrite(dType, tagWidth).asInstanceOf[this.type]
 }
 
 class ReorderEnqueueIO[T <: Data](dType: T, tagWidth: Int)
   extends DecoupledIO(new ReorderQueueWrite(dType, tagWidth)) {
 
-  override def cloneType =
-    new ReorderEnqueueIO(dType, tagWidth).asInstanceOf[this.type]
 }
 
 class ReorderDequeueIO[T <: Data](dType: T, tagWidth: Int) extends Bundle {
@@ -26,8 +22,6 @@ class ReorderDequeueIO[T <: Data](dType: T, tagWidth: Int) extends Bundle {
   val data = dType.cloneType.asOutput
   val matches = Bool(OUTPUT)
 
-  override def cloneType =
-    new ReorderDequeueIO(dType, tagWidth).asInstanceOf[this.type]
 }
 
 class ReorderQueue[T <: Data](dType: T, tagWidth: Int, size: Option[Int] = None)