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Nicer debug printing

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This commit is contained in:
Ulf Norell 2019-04-02 11:56:58 +02:00
parent e224aadff7
commit 185487afda
1 changed files with 19 additions and 6 deletions
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23
src/aeso_fcode_to_fate.erl
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@ -184,15 +184,29 @@ flatten_s(I) -> I.
optimize_fun(_Funs, Name, {{Args, Res}, Code}, Options) ->
Code0 = flatten(Code),
debug(Options, "Optimizing ~s\n", [Name]),
debug(Options, " original : ~p\n", [Code0]),
ACode = annotate_code(Code0),
debug(Options, " annotated : ~p\n", [ACode]),
debug(Options, " original:\n~s\n", [pp_ann(" ", ACode)]),
Code1 = simplify(ACode),
debug(Options, " simplified: ~p\n", [Code1]),
debug(Options, " optimized:\n~s\n", [pp_ann(" ", Code1)]),
Code2 = desugar(Code1),
debug(Options, " desugared : ~p\n", [Code2]),
{{Args, Res}, Code2}.
pp_ann(Ind, [{ifte, Then, Else} | Code]) ->
[Ind, "IF-THEN\n",
pp_ann(" " ++ Ind, Then),
Ind, "ELSE\n",
pp_ann(" " ++ Ind, Else),
pp_ann(Ind, Code)];
pp_ann(Ind, [{#{ live_in := In, live_out := Out }, I} | Code]) ->
Fmt = fun([]) -> "()";
(Xs) -> string:join([lists:concat(["var", N]) || {var, N} <- Xs], " ")
end,
Op = [Ind, aeb_fate_pp:format_op(I, #{})],
Ann = [[" % ", Fmt(In), " -> ", Fmt(Out)] || In ++ Out /= []],
[io_lib:format("~-40s~s\n", [Op, Ann]),
pp_ann(Ind, Code)];
pp_ann(_, []) -> [].
%% -- Analysis --
annotate_code(Code) ->
@ -436,7 +450,6 @@ simpl_top2(I = {Ann, {Op, R = {var, _}, A, B}}, Code) when ?IsBinOp(Op) ->
%% Subtle: we still have to pop the stack if any of the arguments
%% came from there. In this case we pop to R, which we know is
%% unused.
io:format("Removing write to dead var: ~p\n", [I]),
lists:foldr(fun simpl_top/2, Code,
[{Ann, {'POP', R}} || X <- [A, B], X == ?a]);
true -> [I | Code]