ID:23589 Using the get_clock_info command with the -nreg_pos or -nreg_neg options as an SDC command is subject to restrictions. If there are set_sense SDC commands that target the clock network of the requested clock, the -nreg_pos or -nreg_neg options are not supported in the get_clock_info SDC command.

CAUSE: The get_clock_info command can be used as an SDC command or a reporting command. However, the -nreg_pos and -nreg_neg options are not supported as SDC commands if there are set_sense commands targetting the clock network of the requested clock. When this happens, the get_clock_info command can be used only as a reporting command after update_timing_netlist has been run. These commands are skipped.

ACTION: Use only supported SDC commands/options in an SDC file or as an interactive SDC command. You may still use this command/option as a reporting command after update_timing_netlist has been called.