ID:13031 Reduced fanout from the always-enabled open-drain buffer "<name>" to the output pin "<name>" to GND

CAUSE: The specified open-drain buffer is fed by the constant GND. So essentially, the output pin that it drives will always have the value GND. As a result, the Quartus Prime software removed the fanout from the open-drain buffer to the output pin and replaced it with the constant GND. For example, this situation occurs in the following Verilog design:

	module test (output out); 
	wire gnd; 
	assign gnd = 1'b0; 
	OPNDRN my_opndrn (.in(gnd), .out(out)); 
	endmodule