set_input_delay means delay that ideal source to input port delay and set_clock_latency means that we estimate postlayout clock tree latency.
My question is comming.What is the fllowing three command different(I think that first command is the same as third command, true？)
set_input_delay 1 [get_ports CLK]
set_clock_latency 1 [get_ports CLK]
set_clock_latency -source 1 [get_ports CLK]