diff options
| -rw-r--r-- | lib/Target/XCore/XCoreISelLowering.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/XCore/XCoreISelLowering.cpp b/lib/Target/XCore/XCoreISelLowering.cpp index e59b18cd2a..d8cbd037cb 100644 --- a/lib/Target/XCore/XCoreISelLowering.cpp +++ b/lib/Target/XCore/XCoreISelLowering.cpp @@ -1105,6 +1105,10 @@ SDValue XCoreTargetLowering::PerformDAGCombine(SDNode *N, ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1); EVT VT = N0.getValueType(); + // canonicalize constant to RHS + if (N0C && !N1C) + return DAG.getNode(XCoreISD::LADD, dl, DAG.getVTList(VT, VT), N1, N0, N2); + // fold (ladd 0, 0, x) -> 0, x & 1 if (N0C && N0C->isNullValue() && N1C && N1C->isNullValue()) { SDValue Carry = DAG.getConstant(0, VT); |