Resolved issues

Author: Red-RobinHood

llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

@@ -31527,38 +31527,6 @@ bool AArch64TargetLowering::SimplifyDemandedBitsForTargetNode(
       Op, OriginalDemandedBits, OriginalDemandedElts, Known, TLO, Depth);
 }
 
-bool AArch64TargetLowering::SimplifyDemandedVectorEltsForTargetNode(
-    SDValue Op,
-    const APInt &DemandedElts,
-    APInt &KnownUndef,
-    APInt &KnownZero,
-    TargetLoweringOpt &TLO,
-    unsigned Depth) const {
-
-  SDNode *N = Op.getNode();
-  unsigned Opc = N->getOpcode();
-
-  if (Opc != AArch64ISD::DUPLANE8 &&
-      Opc != AArch64ISD::DUPLANE16 &&
-      Opc != AArch64ISD::DUPLANE32 &&
-      Opc != AArch64ISD::DUPLANE64)
-    return false;
-
-  if (DemandedElts.popcount() != 1)
-  return false;
-
-  SDValue Src  = N->getOperand(0);
-  SDValue Lane = N->getOperand(1);
-
-  SDLoc DL(N);
-  SelectionDAG &DAG = TLO.DAG;
-
-  SDValue Extracted = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, DL, Src.getValueType().getScalarType(), Src, Lane);
-  SDValue Splat = DAG.getSplatVector(Op.getValueType(), DL, Extracted);
-
-  return TLO.CombineTo(Op, Splat);
-}
-
 bool AArch64TargetLowering::canCreateUndefOrPoisonForTargetNode(
     SDValue Op, const APInt &DemandedElts, const SelectionDAG &DAG,
     bool PoisonOnly, bool ConsiderFlags, unsigned Depth) const {

llvm/lib/Target/AArch64/AArch64ISelLowering.h

@@ -880,13 +880,6 @@ class AArch64TargetLowering : public TargetLowering {
                                          TargetLoweringOpt &TLO,
                                          unsigned Depth) const override;
 
-  bool SimplifyDemandedVectorEltsForTargetNode(SDValue Op,
-                                          const APInt &DemandedElts,
-                                          APInt &KnownUndef,
-                                          APInt &KnownZero,
-                                          TargetLoweringOpt &TLO,
-                                          unsigned Depth) const override;
-
   bool canCreateUndefOrPoisonForTargetNode(SDValue Op,
                                            const APInt &DemandedElts,
                                            const SelectionDAG &DAG,