All the command line options of FPGA-Verilog can be shown by calling the help menu of VPR. Here are all the FPGA-Verilog-related options that you can find:
"--fpga_verilog_dir <dir_path>", "Specify the directory where all the Verilog files will be outputted to. <dir_path> is the destination directory."
"--fpga_verilog_include_timing", "Includes the timings found in the XML architecture description file."
"--fpga_verilog_include_signal_init", "Set all nets to random value to be close of a real power-on case"
"--fpga_verilog_print_modelsim_autodeck <modelsim_ini_path>", "Generates the scripts necessary to the ModelSim simulation and specify the path to modelsim.ini file."
"--fpga_verilog_print_top_testbench", "Prints the full-chip-level testbench for the FPGA, which includes programming phase and operationg phase (random patterns)."
"--fpga_verilog_print_autocheck_top_testbench \
<reference_verilog_file_path>", "Prints a testbench stimulating the generated FPGA and the initial benchmark to compare stimuli responses, which includes programming phase and operationg phase (random patterns)"
"--fpga_verilog_print_formal_verification_top_netlist", "Prints a Verilog top file compliant with formal verification tools. With this top file the FPGA is initialy programmed. It also prints a testbench with random patterns, which can be manually or automatically check regarding previous options."
"--fpga_verilog_include_icarus_simulator", "Activates waveforms .vcd file generation and simulation timeout, which are required for Icarus Verilog simulator"