diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 1c28d6dcaf..893cf2036a 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -7433,7 +7433,8 @@ SDValue DAGCombiner::ReduceLoadOpStoreWidth(SDNode *N) { // start at the previous one. if (ShAmt % NewBW) ShAmt = (((ShAmt + NewBW - 1) / NewBW) * NewBW) - NewBW; - APInt Mask = APInt::getBitsSet(BitWidth, ShAmt, ShAmt + NewBW); + APInt Mask = APInt::getBitsSet(BitWidth, ShAmt, + std::min(BitWidth, ShAmt + NewBW)); if ((Imm & Mask) == Imm) { APInt NewImm = (Imm & Mask).lshr(ShAmt).trunc(NewBW); if (Opc == ISD::AND) |