ID:126012 Node "<name>" not modified or duplicated by <algorithm> -- node directly drives a global signal

CAUSE: You turned on an optimization for the specified node that would normally modify or duplicate the node. If the node were duplicated, it is possible that due to the limited number of global signals, the duplicated node might not be routed to a global signal, which may affect the timing of the design. The optimization was not performed.

ACTION: If the timing or fitting for the design is satisfactory, no action is required. Otherwise, turn off the option that resulted in the optimization of the specified node.