%Warning-LATCH: t/t_lint_latch_bad_2.v:11:4: Latch inferred for signal 'o' (not all control paths of combinational always assign a value)
                                           : ... Suggest use of always_latch for intentional latches
   11 |    always @(a or b)
      |    ^~~~~~
                ... For warning description see https://verilator.org/warn/LATCH?v=latest
                ... Use "/* verilator lint_off LATCH */" and lint_on around source to disable this message.
%Error: Exiting due to
