[DAG] use !isUndef() ; NFCI

llvm-svn: 263453

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index 3cb9264431a..7df5519d94f 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -6100,7 +6100,7 @@ static SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) {
           !isa<ConstantSDNode>(V1.getOperand(0))) {
         bool IsScalarToVector = true;
         for (unsigned i = 1, e = V1.getNumOperands(); i != e; ++i)
-          if (V1.getOperand(i).getOpcode() != ISD::UNDEF) {
+          if (!V1.getOperand(i).isUndef()) {
             IsScalarToVector = false;
             break;
           }
@@ -6274,11 +6274,11 @@ static SDValue LowerCONCAT_VECTORS(SDValue Op, SelectionDAG &DAG) {
   SDValue Val = DAG.getUNDEF(MVT::v2f64);
   SDValue Op0 = Op.getOperand(0);
   SDValue Op1 = Op.getOperand(1);
-  if (Op0.getOpcode() != ISD::UNDEF)
+  if (!Op0.isUndef())
     Val = DAG.getNode(ISD::INSERT_VECTOR_ELT, dl, MVT::v2f64, Val,
                       DAG.getNode(ISD::BITCAST, dl, MVT::f64, Op0),
                       DAG.getIntPtrConstant(0, dl));
-  if (Op1.getOpcode() != ISD::UNDEF)
+  if (!Op1.isUndef())
     Val = DAG.getNode(ISD::INSERT_VECTOR_ELT, dl, MVT::v2f64, Val,
                       DAG.getNode(ISD::BITCAST, dl, MVT::f64, Op1),
                       DAG.getIntPtrConstant(1, dl));
@@ -9576,8 +9576,7 @@ static SDValue PerformVECTOR_SHUFFLECombine(SDNode *N, SelectionDAG &DAG) {
     return SDValue();
   SDValue Concat0Op1 = Op0.getOperand(1);
   SDValue Concat1Op1 = Op1.getOperand(1);
-  if (Concat0Op1.getOpcode() != ISD::UNDEF ||
-      Concat1Op1.getOpcode() != ISD::UNDEF)
+  if (!Concat0Op1.isUndef() || !Concat1Op1.isUndef())
     return SDValue();
   // Skip the transformation if any of the types are illegal.
   const TargetLowering &TLI = DAG.getTargetLoweringInfo();