diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 4d9fd18d71e..453f506d798 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -5276,9 +5276,9 @@ static SDValue extractShiftForRotate(SelectionDAG &DAG, SDValue OppShift, // Compute the shift amount we need to extract to complete the rotate. const unsigned VTWidth = ShiftedVT.getScalarSizeInBits(); - APInt NeededShiftAmt = VTWidth - OppShiftCst->getAPIntValue(); - if (NeededShiftAmt.isNegative()) + if (OppShiftCst->getAPIntValue().ugt(VTWidth)) return SDValue(); + APInt NeededShiftAmt = VTWidth - OppShiftCst->getAPIntValue(); // Normalize the bitwidth of the two mul/udiv/shift constant operands. APInt ExtractFromAmt = ExtractFromCst->getAPIntValue(); APInt OppLHSAmt = OppLHSCst->getAPIntValue(); |
