[X86] foldXorTruncShiftIntoCmp - pull out repeated SDLoc. NFC.

Author: RKSimon

llvm/lib/Target/X86/X86ISelLowering.cpp

@@ -52596,7 +52596,8 @@ static SDValue combineOr(SDNode *N, SelectionDAG &DAG,
 ///   XOR(TRUNCATE(SRL(X, size(X)-1)), 1)
 /// into:
 ///   SETGT(X, -1)
-static SDValue foldXorTruncShiftIntoCmp(SDNode *N, SelectionDAG &DAG) {
+static SDValue foldXorTruncShiftIntoCmp(SDNode *N, const SDLoc &DL,
+                                        SelectionDAG &DAG) {
   // This is only worth doing if the output type is i8 or i1.
   EVT ResultType = N->getValueType(0);
   if (ResultType != MVT::i8 && ResultType != MVT::i1)
@@ -52631,7 +52632,6 @@ static SDValue foldXorTruncShiftIntoCmp(SDNode *N, SelectionDAG &DAG) {
   // Create a greater-than comparison against -1.
   // N.B. Using SETGE against 0 works but we want a canonical looking
   // comparison, using SETGT matches up with what TranslateX86CC.
-  SDLoc DL(N);
   SDValue ShiftOp = Shift.getOperand(0);
   EVT ShiftOpTy = ShiftOp.getValueType();
   const TargetLowering &TLI = DAG.getTargetLoweringInfo();
@@ -54936,7 +54936,7 @@ static SDValue combineXor(SDNode *N, SelectionDAG &DAG,
   if (SDValue R = combineOrXorWithSETCC(N->getOpcode(), DL, VT, N0, N1, DAG))
     return R;
 
-  if (SDValue RV = foldXorTruncShiftIntoCmp(N, DAG))
+  if (SDValue RV = foldXorTruncShiftIntoCmp(N, DL, DAG))
     return RV;
 
   // Fold not(iX bitcast(vXi1)) -> (iX bitcast(not(vec))) for legal boolvecs.