[RISCV] Minor style cleanup in lowerVECTOR_SHUFFLEAsVNSRL [nfc]

Author: preames

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

@@ -3111,15 +3111,13 @@ static SDValue lowerVECTOR_SHUFFLEAsVNSRL(const SDLoc &DL, MVT VT,
  // Convert the vector to a wider integer type with the original element
  // count. This also converts FP to int.
  unsigned EltBits = ContainerVT.getScalarSizeInBits();
- MVT WideIntEltVT = MVT::getIntegerVT(EltBits * 2);
  MVT WideIntContainerVT =
- MVT::getVectorVT(WideIntEltVT, ContainerVT.getVectorElementCount());
+ MVT::getVectorVT(MVT::getIntegerVT(EltBits * 2),
+ ContainerVT.getVectorElementCount());
  Src = DAG.getBitcast(WideIntContainerVT, Src);
 
- // Convert to the integer version of the container type.
- MVT IntEltVT = MVT::getIntegerVT(EltBits);
- MVT IntContainerVT =
- MVT::getVectorVT(IntEltVT, ContainerVT.getVectorElementCount());
+ // The integer version of the container type.
+ MVT IntContainerVT = ContainerVT.changeVectorElementTypeToInteger();
 
  // If we want even elements, then the shift amount is 0. Otherwise, shift by
  // the original element size.