anchor.diff:          <<1 || 99, [] <- hour>> bsr false,
           ok.
   
  +coverage(_Config) ->
  +
  +    %% Cover beam_ssa_codegen:force_reg/2
  +    no_match = case true of
  +                   <<_:42>> -> true;
  +                   _ -> no_match
  +              end,
  +
  +    no_match = case [] of
  +                   <<$f:1.7>> -> ok;
  +                   _ -> no_match
  +               end,
  +    {'EXIT',{{badmatch,$T},_}} = (catch coverage_1()),
  +
  +    ok.
  +
  +coverage_1() ->
  +    <<area/signed-bitstring>> = $T.
  +
   
   %% The identity function.
   id(I) -> I.
  
positive.code:     0.0 = percentage(0.0, 0.0),
      40.0 = percentage(4.0, 10.0),
      60.0 = percentage(6, 10),
  
      ok.
  
  
negative.code:        share_opt,
         beam_ssa_dead_crash,
         stack_init,
         grab_bag,
         coverage
        ]}].
  
  init_per_suite(Config) ->
  