[DAG] visitOR/visitORLike - merge repeated SDLoc calls.

Author: RKSimon

llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

@@ -457,7 +457,7 @@ namespace {
     SDValue visitAND(SDNode *N);
     SDValue visitANDLike(SDValue N0, SDValue N1, SDNode *N);
     SDValue visitOR(SDNode *N);
-    SDValue visitORLike(SDValue N0, SDValue N1, SDNode *N);
+    SDValue visitORLike(SDValue N0, SDValue N1, const SDLoc &DL);
     SDValue visitXOR(SDNode *N);
     SDValue SimplifyVCastOp(SDNode *N, const SDLoc &DL);
     SDValue SimplifyVBinOp(SDNode *N, const SDLoc &DL);
@@ -7566,9 +7566,8 @@ SDValue DAGCombiner::MatchBSwapHWord(SDNode *N, SDValue N0, SDValue N1) {
 
 /// This contains all DAGCombine rules which reduce two values combined by
 /// an Or operation to a single value \see visitANDLike().
-SDValue DAGCombiner::visitORLike(SDValue N0, SDValue N1, SDNode *N) {
+SDValue DAGCombiner::visitORLike(SDValue N0, SDValue N1, const SDLoc &DL) {
   EVT VT = N1.getValueType();
-  SDLoc DL(N);
 
   // fold (or x, undef) -> -1
   if (!LegalOperations && (N0.isUndef() || N1.isUndef()))
@@ -7702,23 +7701,24 @@ SDValue DAGCombiner::visitOR(SDNode *N) {
   SDValue N0 = N->getOperand(0);
   SDValue N1 = N->getOperand(1);
   EVT VT = N1.getValueType();
+  SDLoc DL(N);
 
   // x | x --> x
   if (N0 == N1)
     return N0;
 
   // fold (or c1, c2) -> c1|c2
-  if (SDValue C = DAG.FoldConstantArithmetic(ISD::OR, SDLoc(N), VT, {N0, N1}))
+  if (SDValue C = DAG.FoldConstantArithmetic(ISD::OR, DL, VT, {N0, N1}))
     return C;
 
   // canonicalize constant to RHS
   if (DAG.isConstantIntBuildVectorOrConstantInt(N0) &&
       !DAG.isConstantIntBuildVectorOrConstantInt(N1))
-    return DAG.getNode(ISD::OR, SDLoc(N), VT, N1, N0);
+    return DAG.getNode(ISD::OR, DL, VT, N1, N0);
 
   // fold vector ops
   if (VT.isVector()) {
-    if (SDValue FoldedVOp = SimplifyVBinOp(N, SDLoc(N)))
+    if (SDValue FoldedVOp = SimplifyVBinOp(N, DL))
       return FoldedVOp;
 
     // fold (or x, 0) -> x, vector edition
@@ -7728,7 +7728,7 @@ SDValue DAGCombiner::visitOR(SDNode *N) {
     // fold (or x, -1) -> -1, vector edition
     if (ISD::isConstantSplatVectorAllOnes(N1.getNode()))
       // do not return N1, because undef node may exist in N1
-      return DAG.getAllOnesConstant(SDLoc(N), N1.getValueType());
+      return DAG.getAllOnesConstant(DL, N1.getValueType());
 
     // fold (or (shuf A, V_0, MA), (shuf B, V_0, MB)) -> (shuf A, B, Mask)
     // Do this only if the resulting type / shuffle is legal.
@@ -7778,10 +7778,8 @@ SDValue DAGCombiner::visitOR(SDNode *N) {
         if (CanFold) {
           SDValue NewLHS = ZeroN00 ? N0.getOperand(1) : N0.getOperand(0);
           SDValue NewRHS = ZeroN10 ? N1.getOperand(1) : N1.getOperand(0);
-
           SDValue LegalShuffle =
-              TLI.buildLegalVectorShuffle(VT, SDLoc(N), NewLHS, NewRHS,
-                                          Mask, DAG);
+              TLI.buildLegalVectorShuffle(VT, DL, NewLHS, NewRHS, Mask, DAG);
           if (LegalShuffle)
             return LegalShuffle;
         }
@@ -7808,7 +7806,7 @@ SDValue DAGCombiner::visitOR(SDNode *N) {
   if (SDValue R = foldAndOrOfSETCC(N, DAG))
     return R;
 
-  if (SDValue Combined = visitORLike(N0, N1, N))
+  if (SDValue Combined = visitORLike(N0, N1, DL))
     return Combined;
 
   if (SDValue Combined = combineCarryDiamond(DAG, TLI, N0, N1, N))
@@ -7821,12 +7819,12 @@ SDValue DAGCombiner::visitOR(SDNode *N) {
     return BSwap;
 
   // reassociate or
-  if (SDValue ROR = reassociateOps(ISD::OR, SDLoc(N), N0, N1, N->getFlags()))
+  if (SDValue ROR = reassociateOps(ISD::OR, DL, N0, N1, N->getFlags()))
     return ROR;
 
   // Fold or(vecreduce(x), vecreduce(y)) -> vecreduce(or(x, y))
-  if (SDValue SD = reassociateReduction(ISD::VECREDUCE_OR, ISD::OR, SDLoc(N),
-                                        VT, N0, N1))
+  if (SDValue SD =
+          reassociateReduction(ISD::VECREDUCE_OR, ISD::OR, DL, VT, N0, N1))
     return SD;
 
   // Canonicalize (or (and X, c1), c2) -> (and (or X, c2), c1|c2)
@@ -7840,7 +7838,7 @@ SDValue DAGCombiner::visitOR(SDNode *N) {
                                                  {N1, N0.getOperand(1)})) {
       SDValue IOR = DAG.getNode(ISD::OR, SDLoc(N0), VT, N0.getOperand(0), N1);
       AddToWorklist(IOR.getNode());
-      return DAG.getNode(ISD::AND, SDLoc(N), VT, COR, IOR);
+      return DAG.getNode(ISD::AND, DL, VT, COR, IOR);
     }
   }
 
@@ -7855,7 +7853,7 @@ SDValue DAGCombiner::visitOR(SDNode *N) {
       return V;
 
   // See if this is some rotate idiom.
-  if (SDValue Rot = MatchRotate(N0, N1, SDLoc(N)))
+  if (SDValue Rot = MatchRotate(N0, N1, DL))
     return Rot;
 
   if (SDValue Load = MatchLoadCombine(N))
@@ -11534,7 +11532,7 @@ SDValue DAGCombiner::visitSELECT(SDNode *N) {
                              N2_2, Flags);
         }
         // Otherwise see if we can optimize to a better pattern.
-        if (SDValue Combined = visitORLike(N0, N2_0, N))
+        if (SDValue Combined = visitORLike(N0, N2_0, DL))
           return DAG.getNode(ISD::SELECT, DL, N1.getValueType(), Combined, N1,
                              N2_2, Flags);
       }