diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 3d835266b90..ee767c0fd03 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -8688,8 +8688,9 @@ SDValue DAGCombiner::ReduceLoadWidth(SDNode *N) { if (ShiftMask.isMask()) { EVT MaskedVT = EVT::getIntegerVT(*DAG.getContext(), ShiftMask.countTrailingOnes()); - // Recompute the type. - if (TLI.isLoadExtLegal(ExtType, N0.getValueType(), MaskedVT)) + // If the mask is smaller, recompute the type. + if ((ExtVT.getSizeInBits() > MaskedVT.getSizeInBits()) && + TLI.isLoadExtLegal(ExtType, N0.getValueType(), MaskedVT)) ExtVT = MaskedVT; } } |
