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authorMichał Muskała <[email protected]>2017-08-09 13:50:21 +0200
committerMichał Muskała <[email protected]>2017-08-12 18:46:13 +0200
commit63528ed4fa6463097dffdc951b46321bac37350f (patch)
tree272ebf6f26aed6ca6ba5912ec418fa66b954c8a6 /lib/compiler/src/beam_clean.erl
parent3d1335be3cde81efff7ba55140d52c2a2d032e8f (diff)
downloadotp-63528ed4fa6463097dffdc951b46321bac37350f.tar.gz
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Introduce beam_utils:replace_labels/4
Diffstat (limited to 'lib/compiler/src/beam_clean.erl')
-rw-r--r--lib/compiler/src/beam_clean.erl58
1 files changed, 4 insertions, 54 deletions
diff --git a/lib/compiler/src/beam_clean.erl b/lib/compiler/src/beam_clean.erl
index b736d39f9c..e094c2c320 100644
--- a/lib/compiler/src/beam_clean.erl
+++ b/lib/compiler/src/beam_clean.erl
@@ -24,7 +24,7 @@
-export([module/2]).
-export([bs_clean_saves/1]).
-export([clean_labels/1]).
--import(lists, [map/2,foldl/3,reverse/1,filter/2]).
+-import(lists, [foldl/3,reverse/1,filter/2]).
-spec module(beam_utils:module_code(), [compile:option()]) ->
{'ok',beam_utils:module_code()}.
@@ -118,7 +118,7 @@ add_to_work_list(F, {Fs,Used}=Sets) ->
clean_labels(Fs0) ->
St0 = #st{lmap=[],entry=1,lc=1},
{Fs1,#st{lmap=Lmap0,lc=Lc}} = function_renumber(Fs0, St0, []),
- Lmap = gb_trees:from_orddict(ordsets:from_list(Lmap0)),
+ Lmap = maps:from_list(Lmap0),
Fs = function_replace(Fs1, Lmap, []),
{Fs,Lc}.
@@ -187,7 +187,8 @@ is_record_tuple(_, _, _) -> no.
function_replace([{function,Name,Arity,Entry,Asm0}|Fs], Dict, Acc) ->
Asm = try
- replace(Asm0, [], Dict)
+ Fb = fun(Old) -> throw({error,{undefined_label,Old}}) end,
+ beam_utils:replace_labels(Asm0, [], Dict, Fb)
catch
throw:{error,{undefined_label,Lbl}=Reason} ->
io:format("Function ~s/~w refers to undefined label ~w\n",
@@ -197,57 +198,6 @@ function_replace([{function,Name,Arity,Entry,Asm0}|Fs], Dict, Acc) ->
function_replace(Fs, Dict, [{function,Name,Arity,Entry,Asm}|Acc]);
function_replace([], _, Acc) -> Acc.
-replace([{test,Test,{f,Lbl},Ops}|Is], Acc, D) ->
- replace(Is, [{test,Test,{f,label(Lbl, D)},Ops}|Acc], D);
-replace([{test,Test,{f,Lbl},Live,Ops,Dst}|Is], Acc, D) ->
- replace(Is, [{test,Test,{f,label(Lbl, D)},Live,Ops,Dst}|Acc], D);
-replace([{select,I,R,{f,Fail0},Vls0}|Is], Acc, D) ->
- Vls = map(fun ({f,L}) -> {f,label(L, D)};
- (Other) -> Other
- end, Vls0),
- Fail = label(Fail0, D),
- replace(Is, [{select,I,R,{f,Fail},Vls}|Acc], D);
-replace([{'try',R,{f,Lbl}}|Is], Acc, D) ->
- replace(Is, [{'try',R,{f,label(Lbl, D)}}|Acc], D);
-replace([{'catch',R,{f,Lbl}}|Is], Acc, D) ->
- replace(Is, [{'catch',R,{f,label(Lbl, D)}}|Acc], D);
-replace([{jump,{f,Lbl}}|Is], Acc, D) ->
- replace(Is, [{jump,{f,label(Lbl, D)}}|Acc], D);
-replace([{loop_rec,{f,Lbl},R}|Is], Acc, D) ->
- replace(Is, [{loop_rec,{f,label(Lbl, D)},R}|Acc], D);
-replace([{loop_rec_end,{f,Lbl}}|Is], Acc, D) ->
- replace(Is, [{loop_rec_end,{f,label(Lbl, D)}}|Acc], D);
-replace([{wait,{f,Lbl}}|Is], Acc, D) ->
- replace(Is, [{wait,{f,label(Lbl, D)}}|Acc], D);
-replace([{wait_timeout,{f,Lbl},To}|Is], Acc, D) ->
- replace(Is, [{wait_timeout,{f,label(Lbl, D)},To}|Acc], D);
-replace([{bif,Name,{f,Lbl},As,R}|Is], Acc, D) when Lbl =/= 0 ->
- replace(Is, [{bif,Name,{f,label(Lbl, D)},As,R}|Acc], D);
-replace([{gc_bif,Name,{f,Lbl},Live,As,R}|Is], Acc, D) when Lbl =/= 0 ->
- replace(Is, [{gc_bif,Name,{f,label(Lbl, D)},Live,As,R}|Acc], D);
-replace([{call,Ar,{f,Lbl}}|Is], Acc, D) ->
- replace(Is, [{call,Ar,{f,label(Lbl,D)}}|Acc], D);
-replace([{make_fun2,{f,Lbl},U1,U2,U3}|Is], Acc, D) ->
- replace(Is, [{make_fun2,{f,label(Lbl, D)},U1,U2,U3}|Acc], D);
-replace([{bs_init,{f,Lbl},Info,Live,Ss,Dst}|Is], Acc, D) when Lbl =/= 0 ->
- replace(Is, [{bs_init,{f,label(Lbl, D)},Info,Live,Ss,Dst}|Acc], D);
-replace([{bs_put,{f,Lbl},Info,Ss}|Is], Acc, D) when Lbl =/= 0 ->
- replace(Is, [{bs_put,{f,label(Lbl, D)},Info,Ss}|Acc], D);
-replace([{put_map=I,{f,Lbl},Op,Src,Dst,Live,List}|Is], Acc, D)
- when Lbl =/= 0 ->
- replace(Is, [{I,{f,label(Lbl, D)},Op,Src,Dst,Live,List}|Acc], D);
-replace([{get_map_elements=I,{f,Lbl},Src,List}|Is], Acc, D) when Lbl =/= 0 ->
- replace(Is, [{I,{f,label(Lbl, D)},Src,List}|Acc], D);
-replace([I|Is], Acc, D) ->
- replace(Is, [I|Acc], D);
-replace([], Acc, _) -> Acc.
-
-label(Old, D) ->
- case gb_trees:lookup(Old, D) of
- {value,Val} -> Val;
- none -> throw({error,{undefined_label,Old}})
- end.
-
%%%
%%% Final fixup of bs_start_match2/5,bs_save2/bs_restore2 instructions for
%%% new bit syntax matching (introduced in R11B).