diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/TargetLowering.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/TargetLowering.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp index 389f2ea5ff..12185a3d4c 100644 --- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp @@ -1380,9 +1380,12 @@ bool TargetLowering::SimplifyDemandedBits(SDValue Op, BitWidth - InnerVT.getSizeInBits()) & DemandedMask) == 0 && isTypeDesirableForOp(ISD::SHL, InnerVT)) { + EVT ShTy = getShiftAmountTy(); + if (!APInt(BitWidth, ShAmt).isIntN(ShTy.getSizeInBits())) + ShTy = InnerVT; SDValue NarrowShl = TLO.DAG.getNode(ISD::SHL, dl, InnerVT, InnerOp, - TLO.DAG.getConstant(ShAmt, InnerVT)); + TLO.DAG.getConstant(ShAmt, ShTy)); return TLO.CombineTo(Op, TLO.DAG.getNode(ISD::ANY_EXTEND, dl, Op.getValueType(), |