[DAG] widenCtPop - reuse existing SDLoc. NFC.

Author: RKSimon

llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

@@ -13782,9 +13782,10 @@ SDValue DAGCombiner::visitSIGN_EXTEND(SDNode *N) {
 /// Given an extending node with a pop-count operand, if the target does not
 /// support a pop-count in the narrow source type but does support it in the
 /// destination type, widen the pop-count to the destination type.
-static SDValue widenCtPop(SDNode *Extend, SelectionDAG &DAG) {
+static SDValue widenCtPop(SDNode *Extend, SelectionDAG &DAG, const SDLoc &DL) {
   assert((Extend->getOpcode() == ISD::ZERO_EXTEND ||
-          Extend->getOpcode() == ISD::ANY_EXTEND) && "Expected extend op");
+          Extend->getOpcode() == ISD::ANY_EXTEND) &&
+         "Expected extend op");
 
   SDValue CtPop = Extend->getOperand(0);
   if (CtPop.getOpcode() != ISD::CTPOP || !CtPop.hasOneUse())
@@ -13797,7 +13798,6 @@ static SDValue widenCtPop(SDNode *Extend, SelectionDAG &DAG) {
     return SDValue();
 
   // zext (ctpop X) --> ctpop (zext X)
-  SDLoc DL(Extend);
   SDValue NewZext = DAG.getZExtOrTrunc(CtPop.getOperand(0), DL, VT);
   return DAG.getNode(ISD::CTPOP, DL, VT, NewZext);
 }
@@ -14138,7 +14138,7 @@ SDValue DAGCombiner::visitZERO_EXTEND(SDNode *N) {
   if (SDValue NewVSel = matchVSelectOpSizesWithSetCC(N))
     return NewVSel;
 
-  if (SDValue NewCtPop = widenCtPop(N, DAG))
+  if (SDValue NewCtPop = widenCtPop(N, DAG, DL))
     return NewCtPop;
 
   if (SDValue V = widenAbs(N, DAG))
@@ -14316,7 +14316,7 @@ SDValue DAGCombiner::visitANY_EXTEND(SDNode *N) {
       return SCC;
   }
 
-  if (SDValue NewCtPop = widenCtPop(N, DAG))
+  if (SDValue NewCtPop = widenCtPop(N, DAG, DL))
     return NewCtPop;
 
   if (SDValue Res = tryToFoldExtendSelectLoad(N, TLI, DAG, DL, Level))