diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index c5bf3dcac45..47389f2df32 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -25033,8 +25033,11 @@ static SDValue LowerScalarImmediateShift(SDValue Op, SelectionDAG &DAG, APInt APIntShiftAmt; if (!isConstantSplat(Amt, APIntShiftAmt)) return SDValue(); - assert(APIntShiftAmt.ult(VT.getScalarSizeInBits()) && - "Out of range shift amount"); + + // If the shift amount is out of range, return undef. + if (APIntShiftAmt.uge(VT.getScalarSizeInBits())) + return DAG.getUNDEF(VT); + uint64_t ShiftAmt = APIntShiftAmt.getZExtValue(); if (SupportedVectorShiftWithImm(VT, Subtarget, Op.getOpcode())) |
