The techmapper for xc7 https://github.com/SymbiFlow/symbiflow-arch-defs/blob/master/xc/xc7/techmap/cells_map.v defines a default value for COMPENSATION in the PLL advanced module even though it is never used. Should that be removed? Or, is the techmapper incomplete?

@mkurc-ant and @acomodi - can you comment?