%Warning-CLKDATA: t/t_clocker.v:45:17: Clock is assigned to part of data signal 'res8' 45 | assign res8 = {clk_3, 1'b0, clk_4}; | ^ ... Use "/* verilator lint_off CLKDATA */" and lint_on around source to disable this message. %Warning-CLKDATA: t/t_clocker.v:46:17: Clock is assigned to part of data signal 'res16' 46 | assign res16 = {count, clk_3, clk_1, clk_4}; | ^ %Warning-CLKDATA: t/t_clocker.v:57:14: Clock used as data (on rhs of assignment) in sequential block 'clk' 57 | res <= clk_final; | ^~~~~~~~~ %Error: Exiting due to