diff options
Diffstat (limited to 'lib/compiler/src/beam_dead.erl')
| -rw-r--r-- | lib/compiler/src/beam_dead.erl | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/lib/compiler/src/beam_dead.erl b/lib/compiler/src/beam_dead.erl index 5f12a98f09..b15adfa889 100644 --- a/lib/compiler/src/beam_dead.erl +++ b/lib/compiler/src/beam_dead.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2002-2011. All Rights Reserved. +%% Copyright Ericsson AB 2002-2013. 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 @@ -182,7 +182,7 @@ forward(Is, Lc) -> forward([{block,[]}|Is], D, Lc, Acc) -> %% Empty blocks can prevent optimizations. forward(Is, D, Lc, Acc); -forward([{select_val,Reg,_,{list,List}}=I|Is], D0, Lc, Acc) -> +forward([{select,select_val,Reg,_,List}=I|Is], D0, Lc, Acc) -> D = update_value_dict(List, Reg, D0), forward(Is, D, Lc, [I|Acc]); forward([{label,Lbl}=LblI,{block,[{set,[Dst],[Lit],move}|BlkIs]}=Blk|Is], D, Lc, Acc) -> @@ -271,11 +271,11 @@ backward([{test,is_eq_exact,Fail,[Dst,{integer,Arity}]}=I| end; backward([{label,Lbl}=L|Is], D, Acc) -> backward(Is, beam_utils:index_label(Lbl, Acc, D), [L|Acc]); -backward([{select_val,Reg,{f,Fail0},{list,List0}}|Is], D, Acc) -> +backward([{select,select_val,Reg,{f,Fail0},List0}|Is], D, Acc) -> List = shortcut_select_list(List0, Reg, D, []), Fail1 = shortcut_label(Fail0, D), Fail = shortcut_bs_test(Fail1, Is, D), - Sel = {select_val,Reg,{f,Fail},{list,List}}, + Sel = {select,select_val,Reg,{f,Fail},List}, backward(Is, D, [Sel|Acc]); backward([{jump,{f,To0}},{move,Src,Reg}=Move0|Is], D, Acc) -> {To,Move} = case Src of @@ -382,7 +382,7 @@ shortcut_select_label(To0, Reg, Val, D) -> case beam_utils:code_at(To0, D) of [{jump,{f,To}}|_] -> shortcut_select_label(To, Reg, Val, D); - [{test,is_atom,_,[Reg]},{select_val,Reg,{f,Fail},{list,Map}}|_] -> + [{test,is_atom,_,[Reg]},{select,select_val,Reg,{f,Fail},Map}|_] -> To = find_select_val(Map, Val, Fail), shortcut_select_label(To, Reg, Val, D); [{test,is_eq_exact,{f,_},[Reg,{atom,Val}]},{label,To}|_] when is_atom(Val) -> @@ -472,10 +472,10 @@ combine_eqs(To, [Reg,{Type,_}=Lit1]=Ops, D, [{label,L1}|_]) case beam_utils:code_at(To, D) of [{test,is_eq_exact,{f,F2},[Reg,{Type,_}=Lit2]}, {label,L2}|_] when Lit1 =/= Lit2 -> - {select_val,Reg,{f,F2},{list,[Lit1,{f,L1},Lit2,{f,L2}]}}; - [{select_val,Reg,{f,F2},{list,[{Type,_}|_]=List0}}|_] -> + {select,select_val,Reg,{f,F2},[Lit1,{f,L1},Lit2,{f,L2}]}; + [{select,select_val,Reg,{f,F2},[{Type,_}|_]=List0}|_] -> List = remove_from_list(Lit1, List0), - {select_val,Reg,{f,F2},{list,[Lit1,{f,L1}|List]}}; + {select,select_val,Reg,{f,F2},[Lit1,{f,L1}|List]}; _Is -> {test,is_eq_exact,{f,To},Ops} end; @@ -527,6 +527,8 @@ count_bits_matched([{test,_,_,_,[_,Sz,U,{field_flags,_}],_}|Is], SavePoint, Bits {integer,N} -> count_bits_matched(Is, SavePoint, Bits+N*U); _ -> count_bits_matched(Is, SavePoint, Bits) end; +count_bits_matched([{test,bs_match_string,_,[_,Bits,_]}|Is], SavePoint, Bits0) -> + count_bits_matched(Is, SavePoint, Bits0+Bits); count_bits_matched([{test,_,_,_}|Is], SavePoint, Bits) -> count_bits_matched(Is, SavePoint, Bits); count_bits_matched([{bs_save2,Reg,SavePoint}|_], {Reg,SavePoint}, Bits) -> |