diff options
Diffstat (limited to 'lib/compiler/src/beam_clean.erl')
| -rw-r--r-- | lib/compiler/src/beam_clean.erl | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/lib/compiler/src/beam_clean.erl b/lib/compiler/src/beam_clean.erl index 64c93e11f7..a7994ab3b3 100644 --- a/lib/compiler/src/beam_clean.erl +++ b/lib/compiler/src/beam_clean.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2000-2009. All Rights Reserved. +%% Copyright Ericsson AB 2000-2011. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -23,9 +23,9 @@ -export([module/2]). -export([bs_clean_saves/1]). -export([clean_labels/1]). --import(lists, [map/2,foldl/3,reverse/1]). +-import(lists, [map/2,foldl/3,reverse/1,filter/2]). -module({Mod,Exp,Attr,Fs0,_}, _Opt) -> +module({Mod,Exp,Attr,Fs0,_}, Opts) -> Order = [Lbl || {function,_,_,Lbl,_} <- Fs0], All = foldl(fun({function,_,_,Lbl,_}=Func,D) -> dict:store(Lbl, Func, D) end, dict:new(), Fs0), @@ -33,7 +33,8 @@ module({Mod,Exp,Attr,Fs0,_}, _Opt) -> Used = find_all_used(WorkList, All, sets:from_list(WorkList)), Fs1 = remove_unused(Order, Used, All), {Fs2,Lc} = clean_labels(Fs1), - Fs = bs_fix(Fs2), + Fs3 = bs_fix(Fs2), + Fs = maybe_remove_lines(Fs3, Opts), {ok,{Mod,Exp,Attr,Fs,Lc}}. %% Remove all bs_save2/2 instructions not referenced by a bs_restore2/2. @@ -375,3 +376,20 @@ bs_clean_saves_1([{bs_save2,_,{_,_}=SavePoint}=I|Is], Needed, Acc) -> bs_clean_saves_1([I|Is], Needed, Acc) -> bs_clean_saves_1(Is, Needed, [I|Acc]); bs_clean_saves_1([], _, Acc) -> reverse(Acc). + +%%% +%%% Remove line instructions if requested. +%%% + +maybe_remove_lines(Fs, Opts) -> + case proplists:get_bool(no_line_info, Opts) of + false -> Fs; + true -> remove_lines(Fs) + end. + +remove_lines([{function,N,A,Lbl,Is0}|T]) -> + Is = filter(fun({line,_}) -> false; + (_) -> true + end, Is0), + [{function,N,A,Lbl,Is}|remove_lines(T)]; +remove_lines([]) -> []. |