diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index b523bce339..3efc25aebd 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -2370,6 +2370,9 @@ SDOperand DAGCombiner::SimplifySetCC(MVT::ValueType VT, SDOperand N0, // Canonicalize setgt X, Min --> setne X, Min if ((Cond == ISD::SETGT || Cond == ISD::SETUGT) && C1 == MinVal) return DAG.getSetCC(VT, N0, N1, ISD::SETNE); + // Canonicalize setlt X, Max --> setne X, Max + if ((Cond == ISD::SETLT || Cond == ISD::SETULT) && C1 == MaxVal) + return DAG.getSetCC(VT, N0, N1, ISD::SETNE); // If we have setult X, 1, turn it into seteq X, 0 if ((Cond == ISD::SETLT || Cond == ISD::SETULT) && C1 == MinVal+1) |