diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 7154d9d..1a0f503 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -4120,6 +4120,7 @@ SDValue DAGCombiner::ReduceLoadWidth(SDNode *N) { // we can fold the truncate through the shift. unsigned ShLeftAmt = 0; if (ShAmt == 0 && N0.getOpcode() == ISD::SHL && N0.hasOneUse() && + ExtVT == VT && TLI.isNarrowingProfitable(N0.getValueType(), VT)) { if (ConstantSDNode *N01 = dyn_cast<ConstantSDNode>(N0.getOperand(1))) { ShLeftAmt = N01->getZExtValue(); |