llvm dev - Nov 2020 - Musings on the TableGen -emit-dag-isel backend

Yes, we can. But I think either solution is going eliminate the relaxation step
completely, Either we will always use 3-byte sizes or we will make a first pass
to size everything and then a second pass to emit the code. Either way, no
relaxation is necessary.

>Can we skip the relaxation step if comments aren't being emitted?
>Comment emission is off by default in CMake configuration.
>~Craig