If a RM has sub-module netlists, it can be difficult for the Vivado tools to process the sub-module netlists. This is
because in the DFX flow the RM netlists are added to a design that is already open in
memory. This means the update_design -cells command must
be used, which requires the cell name for every EDIF file, which can be troublesome to
get.
There are two ways to make loading RM sub-module netlists easier in the Vivado Design Suite.