diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 6187aba640..8f90521074 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -2327,8 +2327,12 @@ SDOperand DAGCombiner::ReduceLoadWidth(SDNode *N) { CombineTo(N->getOperand(0).Val, Load); } else CombineTo(N0.Val, Load, Load.getValue(1)); - if (ShAmt) - return DAG.getNode(N->getOpcode(), VT, Load); + if (ShAmt) { + if (Opc == ISD::SIGN_EXTEND_INREG) + return DAG.getNode(Opc, VT, Load, N->getOperand(1)); + else + return DAG.getNode(Opc, VT, Load); + } return SDOperand(N, 0); // Return N so it doesn't get rechecked! } |