fix format

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

if (PartEVT.getVectorElementCount() != ValueVT.getVectorElementCount()) {
              "Cannot narrow, it would be a lossy transformation");
       PartEVT =
           EVT::getVectorVT(*DAG.getContext(), PartEVT.getVectorElementType(),
                            ValueVT.getVectorElementCount());
       Val = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, PartEVT, Val,
                         DAG.getVectorIdxConstant(0, DL));
       if (PartEVT == ValueVT)
         return Val;
-
       if (PartEVT.isInteger() && ValueVT.isFloatingPoint())
         return DAG.getNode(ISD::BITCAST, DL, ValueVT, Val);
     }
 
     // Promoted vector extract
     return DAG.getAnyExtOrTrunc(Val, DL, ValueVT);
   }