BPFTargetLowering missing custom implementation?

In BPFISelLowering.cpp the OperationAction for CTTZ, CTLZ, CTTZ_ZERO_UNDEF, and CTLZ_ZERO_UNDEF are set to Custom but BPFTargetLowering::LowerOperation is missing a case for them.

This will cause an assert if these Operations are ever used with BPF? Is this intended?

Thanks!