[SelectionDAG] Use APInt::isNullValue/isOneValue. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305605 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 2d4422d94a172bfbbed35c7b0a89dacccaa7817c..159c680beb8d7a51cc99640093d13f13a330b7dc 100644 (file)
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -2549,14 +2549,14 @@ SDValue DAGCombiner::visitMUL(SDNode *N) {
      !DAG.isConstantIntBuildVectorOrConstantInt(N1))
     return DAG.getNode(ISD::MUL, SDLoc(N), VT, N1, N0);
   // fold (mul x, 0) -> 0
-  if (N1IsConst && ConstValue1 == 0)
+  if (N1IsConst && ConstValue1.isNullValue())
     return N1;
   // We require a splat of the entire scalar bit width for non-contiguous
   // bit patterns.
   bool IsFullSplat =
     ConstValue1.getBitWidth() == VT.getScalarSizeInBits();
   // fold (mul x, 1) -> x
-  if (N1IsConst && ConstValue1 == 1 && IsFullSplat)
+  if (N1IsConst && ConstValue1.isOneValue() && IsFullSplat)
     return N0;
 
   if (SDValue NewSel = foldBinOpIntoSelect(N))

diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 95e168f96afb280dcb286f5dabb87a78031220b6..4e519527e20f430b5a109aefbba67dfaccc04ea5 100644 (file)
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -919,7 +919,7 @@ bool TargetLowering::SimplifyDemandedBits(SDValue Op,
     // always convert this into a logical shr, even if the shift amount is
     // variable.  The low bit of the shift cannot be an input sign bit unless
     // the shift amount is >= the size of the datatype, which is undefined.
-    if (NewMask == 1)
+    if (NewMask.isOneValue())
       return TLO.CombineTo(Op,
                            TLO.DAG.getNode(ISD::SRL, dl, Op.getValueType(),
                                            Op.getOperand(0), Op.getOperand(1)));
@@ -1349,7 +1349,7 @@ bool TargetLowering::isConstTrueVal(const SDNode *N) const {
   case UndefinedBooleanContent:
     return CVal[0];
   case ZeroOrOneBooleanContent:
-    return CVal == 1;
+    return CVal.isOneValue();
   case ZeroOrNegativeOneBooleanContent:
     return CVal.isAllOnesValue();
   }
@@ -1506,7 +1506,7 @@ SDValue TargetLowering::SimplifySetCC(EVT VT, SDValue N0, SDValue N1,
     // If the LHS is '(srl (ctlz x), 5)', the RHS is 0/1, and this is an
     // equality comparison, then we're just comparing whether X itself is
     // zero.
-    if (N0.getOpcode() == ISD::SRL && (C1 == 0 || C1 == 1) &&
+    if (N0.getOpcode() == ISD::SRL && (C1.isNullValue() || C1.isOneValue()) &&
         N0.getOperand(0).getOpcode() == ISD::CTLZ &&
         N0.getOperand(1).getOpcode() == ISD::Constant) {
       const APInt &ShAmt