[llvm-branch-commits] [llvm] 147c0c2 - [TargetLowering] Use isOneConstant to simplify some code. NFC

[Craig Topper via llvm-branch-commits]

Author: Craig Topper
Date: 2021-01-22T19:32:19-08:00
New Revision: 147c0c263d88a9702aba17fbeac62ff83e6c1319

URL: https://github.com/llvm/llvm-project/commit/147c0c263d88a9702aba17fbeac62ff83e6c1319
DIFF: https://github.com/llvm/llvm-project/commit/147c0c263d88a9702aba17fbeac62ff83e6c1319.diff

LOG: [TargetLowering] Use isOneConstant to simplify some code. NFC

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index b0b4a6ae9227..80b745e0354a 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -3780,8 +3780,7 @@ SDValue TargetLowering::SimplifySetCC(EVT VT, SDValue N0, SDValue N1,
            (N0.getOpcode() == ISD::AND &&
             N0.getOperand(0).getOpcode() == ISD::XOR &&
             N0.getOperand(1) == N0.getOperand(0).getOperand(1))) &&
-          isa<ConstantSDNode>(N0.getOperand(1)) &&
-          cast<ConstantSDNode>(N0.getOperand(1))->isOne()) {
+          isOneConstant(N0.getOperand(1))) {
         // If this is (X^1) == 0/1, swap the RHS and eliminate the xor.  We
         // can only do this if the top bits are known zero.
         unsigned BitWidth = N0.getValueSizeInBits();
@@ -3825,9 +3824,7 @@ SDValue TargetLowering::SimplifySetCC(EVT VT, SDValue N0, SDValue N1,
             return DAG.getSetCC(dl, VT, XorLHS, XorRHS, Cond);
           }
         }
-        if (Op0.getOpcode() == ISD::AND &&
-            isa<ConstantSDNode>(Op0.getOperand(1)) &&
-            cast<ConstantSDNode>(Op0.getOperand(1))->isOne()) {
+        if (Op0.getOpcode() == ISD::AND && isOneConstant(Op0.getOperand(1))) {
           // If this is (X&1) == / != 1, normalize it to (X&1) != / == 0.
           if (Op0.getValueType().bitsGT(VT))
             Op0 = DAG.getNode(ISD::AND, dl, VT,