diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 99c272e001..a96c59b340 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -1035,9 +1035,10 @@ SDOperand DAGCombiner::visitAND(SDNode *N) { WorkList.push_back(ANDNode.Val); return DAG.getNode(ISD::ZERO_EXTEND, VT, ANDNode); } - // fold (and (shl/srl x), (shl/srl y)) -> (shl/srl (and x, y)) + // fold (and (shl/srl/sra x), (shl/srl/sra y)) -> (shl/srl/sra (and x, y)) if (((N0.getOpcode() == ISD::SHL && N1.getOpcode() == ISD::SHL) || - (N0.getOpcode() == ISD::SRL && N1.getOpcode() == ISD::SRL)) && + (N0.getOpcode() == ISD::SRL && N1.getOpcode() == ISD::SRL) || + (N0.getOpcode() == ISD::SRA && N1.getOpcode() == ISD::SRA)) && N0.getOperand(1) == N1.getOperand(1)) { SDOperand ANDNode = DAG.getNode(ISD::AND, N0.getOperand(0).getValueType(), N0.getOperand(0), N1.getOperand(0)); |