[llvm] 63180ba - [DAG] Use SelectionDAG::getNOT helper where possible. NFC.

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2024-03-13T14:47:35Z
New Revision: 63180ba444dc09fb9e85fdb98af56b2fc86f6027

URL: https://github.com/llvm/llvm-project/commit/63180ba444dc09fb9e85fdb98af56b2fc86f6027
DIFF: https://github.com/llvm/llvm-project/commit/63180ba444dc09fb9e85fdb98af56b2fc86f6027.diff

LOG: [DAG] Use SelectionDAG::getNOT helper where possible. NFC.

Added: 
    

Modified: 
    llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 87033e824aa593..40b078a201ace6 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -2799,8 +2799,7 @@ SDValue DAGCombiner::visitADDLike(SDNode *N) {
         // Limit this to after legalization if the add has wrap flags
         (Level >= AfterLegalizeDAG || (!N->getFlags().hasNoUnsignedWrap() &&
                                        !N->getFlags().hasNoSignedWrap()))) {
-      SDValue Not = DAG.getNode(ISD::XOR, DL, VT, N0.getOperand(0),
-                                DAG.getAllOnesConstant(DL, VT));
+      SDValue Not = DAG.getNOT(DL, N0.getOperand(0), VT);
       return DAG.getNode(ISD::SUB, DL, VT, N0.getOperand(1), Not);
     }
   }
@@ -3025,8 +3024,7 @@ SDValue DAGCombiner::visitADDLikeCommutative(SDValue N0, SDValue N1,
       // Limit this to after legalization if the add has wrap flags
       (Level >= AfterLegalizeDAG || (!N0->getFlags().hasNoUnsignedWrap() &&
                                      !N0->getFlags().hasNoSignedWrap()))) {
-    SDValue Not = DAG.getNode(ISD::XOR, DL, VT, N0.getOperand(0),
-                              DAG.getAllOnesConstant(DL, VT));
+    SDValue Not = DAG.getNOT(DL, N0.getOperand(0), VT);
     return DAG.getNode(ISD::SUB, DL, VT, N1, Not);
   }