[X86] Use SelectionDAG::getNot instead of implementing manually. NFC

llvm-svn: 326020

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 537434f..25e1ada 100644 (file)
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -31484,8 +31484,7 @@ combineVSelectWithAllOnesOrZeros(SDNode *N, SelectionDAG &DAG,
   if (TValIsAllZeros  && Subtarget.hasAVX512() && Cond.hasOneUse() &&
       CondVT.getVectorElementType() == MVT::i1) {
     // Invert the cond to not(cond) : xor(op,allones)=not(op)
-    SDValue CondNew = DAG.getNode(ISD::XOR, DL, CondVT, Cond,
-                                  DAG.getAllOnesConstant(DL, CondVT));
+    SDValue CondNew = DAG.getNOT(DL, Cond, CondVT);
     // Vselect cond, op1, op2 = Vselect not(cond), op2, op1
     return DAG.getSelect(DL, VT, CondNew, RHS, LHS);
   }