From b397a5b6d3dce5ad0be19a7bac262d6f636a666d Mon Sep 17 00:00:00 2001 From: Kostis Sagonas Date: Wed, 2 Feb 2011 12:27:44 +0200 Subject: Various cleanups and cosmetic changes --- lib/hipe/icode/hipe_icode_range.erl | 212 ++++++++++++++++++------------------ 1 file changed, 106 insertions(+), 106 deletions(-) (limited to 'lib/hipe/icode') diff --git a/lib/hipe/icode/hipe_icode_range.erl b/lib/hipe/icode/hipe_icode_range.erl index c7e6a451af..91f6fb47f3 100644 --- a/lib/hipe/icode/hipe_icode_range.erl +++ b/lib/hipe/icode/hipe_icode_range.erl @@ -1,20 +1,20 @@ %% -*- erlang-indent-level: 2 -*- %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2007-2009. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 2007-2011. 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 %% compliance with the License. You should have received a copy of the %% Erlang Public License along with this software. If not, it can be %% retrieved online at http://www.erlang.org/. -%% +%% %% Software distributed under the License is distributed on an "AS IS" %% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See %% the License for the specific language governing rights and limitations %% under the License. -%% +%% %% %CopyrightEnd% %% %%%------------------------------------------------------------------- @@ -108,8 +108,8 @@ cfg(Cfg, MFA, Options, Servers) -> -spec concurrent_cfg(cfg(), mfa(), pid()) -> cfg(). concurrent_cfg(Cfg, MFA, CompServer) -> - CompServer ! {ready, {MFA,self()}}, - {ArgsFun,CallFun,FinalFun} = do_analysis(Cfg, MFA), + CompServer ! {ready, {MFA, self()}}, + {ArgsFun, CallFun, FinalFun} = do_analysis(Cfg, MFA), Ans = do_rewrite(Cfg, MFA, ArgsFun, CallFun, FinalFun), CompServer ! {done_rewrite, MFA}, Ans. @@ -266,7 +266,7 @@ handle_args(I, Info, WidenFun) -> %% io:format("Uses: ~p~nRanges: ~p~n", [Uses, PresentRanges]), JoinFun = fun(Var, Range) -> update_info(Var, Range, WidenFun) end, NewUses = lists:zipwith(JoinFun, Uses, PresentRanges), - hipe_icode:subst_uses(lists:zip(Uses, NewUses),I). + hipe_icode:subst_uses(lists:zip(Uses, NewUses), I). -spec join_info(#ann{}, #range{}, three_range_fun()) -> #ann{}. @@ -317,7 +317,7 @@ update_ann(Ann = #ann{range = R1, type = Type, count = C}, R2, _Fun) -> -spec type_to_ann(erl_types:erl_type()) -> #ann{}. type_to_ann(Type) -> - #ann{range = range_from_simple_type(Type), type = t_limit(Type,1), count=1}. + #ann{range = range_from_simple_type(Type), type = t_limit(Type,1), count = 1}. -spec make_range_anno(#ann{}) -> range_anno(). @@ -333,52 +333,52 @@ update_three(_R1, R2, R3) -> safe_widen(#range{range=Old}, #range{range=New}, T = #range{range=Wide}) -> ResRange = - case {Old,New,Wide} of - {{Min,Max1},{Min,Max2},{_,Max}} -> - case inf_geq(OMax = next_up_limit(inf_max([Max1,Max2])),Max) of + case {Old, New, Wide} of + {{Min,Max1}, {Min,Max2}, {_,Max}} -> + case inf_geq(OMax = next_up_limit(inf_max([Max1, Max2])), Max) of true -> {Min,Max}; false -> {Min,OMax} end; - {{Min1,Max},{Min2,Max},{Min,_}} -> - case inf_geq(Min, OMin = next_down_limit(inf_min([Min1,Min2]))) of + {{Min1,Max}, {Min2,Max}, {Min,_}} -> + case inf_geq(Min, OMin = next_down_limit(inf_min([Min1, Min2]))) of true -> {Min,Max}; false -> {OMin,Max} end; - {{Min1,Max1},{Min2,Max2},{Min,Max}} -> + {{Min1,Max1}, {Min2,Max2}, {Min,Max}} -> RealMax = - case inf_geq(OMax = next_up_limit(inf_max([Max1,Max2])),Max) of + case inf_geq(OMax = next_up_limit(inf_max([Max1, Max2])), Max) of true -> Max; false -> OMax end, RealMin = - case inf_geq(Min, OMin = next_down_limit(inf_min([Min1,Min2]))) of + case inf_geq(Min, OMin = next_down_limit(inf_min([Min1, Min2]))) of true -> Min; false -> OMin end, - {RealMin,RealMax}; + {RealMin, RealMax}; _ -> Wide end, - T#range{range=ResRange}. + T#range{range = ResRange}. -spec widen(#range{}, #range{}, #range{}) -> #range{}. widen(#range{range=Old}, #range{range=New}, T = #range{range=Wide}) -> ResRange = - case {Old,New,Wide} of - {{Min,_},{Min,Max2},{_,Max}} -> - case inf_geq(OMax = next_up_limit(Max2),Max) of + case {Old, New, Wide} of + {{Min,_}, {Min,Max2}, {_,Max}} -> + case inf_geq(OMax = next_up_limit(Max2), Max) of true -> {Min,Max}; false -> {Min,OMax} end; - {{_,Max},{Min2,Max},{Min,_}} -> + {{_,Max}, {Min2,Max}, {Min,_}} -> case inf_geq(Min, OMin = next_down_limit(Min2)) of true -> {Min,Max}; false -> {OMin,Max} end; - {_,{Min2,Max2},{Min,Max}} -> + {_, {Min2,Max2}, {Min,Max}} -> RealMax = - case inf_geq(OMax = next_up_limit(Max2),Max) of + case inf_geq(OMax = next_up_limit(Max2), Max) of true -> Max; false -> OMax end, @@ -387,11 +387,11 @@ widen(#range{range=Old}, #range{range=New}, T = #range{range=Wide}) -> true -> Min; false -> OMin end, - {RealMin,RealMax}; + {RealMin, RealMax}; _ -> Wide end, - T#range{range=ResRange}. + T#range{range = ResRange}. -spec analyse_call(#icode_call{}, call_fun()) -> #icode_call{}. @@ -421,7 +421,7 @@ analyse_move(Move) -> analyse_begin_handler(Handler) -> SubstList = - [{Dst,update_info(Dst,any_type())} || + [{Dst, update_info(Dst, any_type())} || Dst <- hipe_icode:begin_handler_dstlist(Handler)], hipe_icode:subst_defines(SubstList, Handler). @@ -497,7 +497,7 @@ analyse_switch_val(Switch, Info, Rewrite) -> -spec update_infos(argument(), info(), [{#range{},label()}]) -> [{label(),info()}]. update_infos(Arg, Info, [{Range, Label}|Rest]) -> - [{Label,enter_define({Arg,Range},Info)} | update_infos(Arg,Info,Rest)]; + [{Label,enter_define({Arg,Range},Info)} | update_infos(Arg, Info, Rest)]; update_infos(_, _, []) -> []. -spec get_range_label_list([{argument(),label()}], #range{}, [{#range{},label()}]) -> @@ -524,7 +524,7 @@ update_switch(Switch, LabelRangeList, KeepFail) -> case label_range_list_to_cases(LabelRangeList, []) of no_update -> Switch; - Cases -> + Cases -> hipe_icode:switch_val_cases_update(Switch, Cases) end, if KeepFail -> S2; @@ -586,9 +586,9 @@ analyse_last_call(Call, Info, LookupFun) -> NewInfo = enter_vals(NewI, Info), case hipe_icode:call_fail_label(Call) of [] -> - {NewI, [{Continuation,NewInfo}]}; + {NewI, [{Continuation, NewInfo}]}; Fail -> - {NewI, [{Continuation,NewInfo}, {Fail,Info}]} + {NewI, [{Continuation, NewInfo}, {Fail, Info}]} end. -spec analyse_if(#icode_if{}, info(), boolean()) -> @@ -596,12 +596,12 @@ analyse_last_call(Call, Info, LookupFun) -> analyse_if(If, Info, Rewrite) -> case hipe_icode:if_args(If) of - Args = [_,_] -> + [_, _] = Args -> analyse_sane_if(If, Info, Args, get_range_from_args(Args), Rewrite); _ -> TrueLabel = hipe_icode:if_true_label(If), FalseLabel = hipe_icode:if_false_label(If), - {If, [{TrueLabel,Info},{FalseLabel,Info}]} + {If, [{TrueLabel, Info}, {FalseLabel, Info}]} end. -spec analyse_sane_if(#icode_if{}, info(), [argument(),...], @@ -613,59 +613,61 @@ analyse_sane_if(If, Info, [Arg1, Arg2], [Range1, Range2], Rewrite) -> '>' -> {TrueRange2, TrueRange1, FalseRange2, FalseRange1} = range_inequality_propagation(Range2, Range1); - '==' -> - {TempTrueRange1, TempTrueRange2, FalseRange1, FalseRange2}= - range_equality_propagation(Range1, Range2), - TrueRange1 = set_other(TempTrueRange1,other(Range1)), - TrueRange2 = set_other(TempTrueRange2,other(Range2)); '<' -> - {TrueRange1, TrueRange2, FalseRange1, FalseRange2} = + {TrueRange1, TrueRange2, FalseRange1, FalseRange2} = range_inequality_propagation(Range1, Range2); '>=' -> {FalseRange1, FalseRange2, TrueRange1, TrueRange2} = range_inequality_propagation(Range1, Range2); '=<' -> - {FalseRange2, FalseRange1, TrueRange2, TrueRange1} = + {FalseRange2, FalseRange1, TrueRange2, TrueRange1} = range_inequality_propagation(Range2, Range1); '=:=' -> - {TrueRange1, TrueRange2, FalseRange1, FalseRange2}= + {TrueRange1, TrueRange2, FalseRange1, FalseRange2} = range_equality_propagation(Range1, Range2); '=/=' -> {FalseRange1, FalseRange2, TrueRange1, TrueRange2} = range_equality_propagation(Range1, Range2); + '==' -> + {TempTrueRange1, TempTrueRange2, FalseRange1, FalseRange2} = + range_equality_propagation(Range1, Range2), + TrueRange1 = set_other(TempTrueRange1, other(Range1)), + TrueRange2 = set_other(TempTrueRange2, other(Range2)); '/=' -> - {TempFalseRange1, TempFalseRange2, TrueRange1, TrueRange2}= + {TempFalseRange1, TempFalseRange2, TrueRange1, TrueRange2} = range_equality_propagation(Range1, Range2), - FalseRange1 = set_other(TempFalseRange1,other(Range1)), - FalseRange2 = set_other(TempFalseRange2,other(Range2)) + FalseRange1 = set_other(TempFalseRange1, other(Range1)), + FalseRange2 = set_other(TempFalseRange2, other(Range2)) end, - TrueLabel = hipe_icode:if_true_label(If), - FalseLabel = hipe_icode:if_false_label(If), - TrueInfo = - enter_defines([{Arg1,TrueRange1}, {Arg2,TrueRange2}],Info), - FalseInfo = - enter_defines([{Arg1,FalseRange1}, {Arg2,FalseRange2}],Info), - True = - case lists:any(fun range__is_none/1,[TrueRange1,TrueRange2]) of + %% io:format("TR1 = ~w\nTR2 = ~w\n", [TrueRange1, TrueRange2]), + True = + case lists:any(fun range__is_none/1, [TrueRange1, TrueRange2]) of true -> []; - false -> [{TrueLabel,TrueInfo}] + false -> + TrueLabel = hipe_icode:if_true_label(If), + TrueArgRanges = [{Arg1, TrueRange1}, {Arg2, TrueRange2}], + TrueInfo = enter_defines(TrueArgRanges, Info), + [{TrueLabel, TrueInfo}] end, - False = - case lists:any(fun range__is_none/1, [FalseRange1,FalseRange2]) of + %% io:format("FR1 = ~w\nFR2 = ~w\n", [FalseRange1, FalseRange2]), + False = + case lists:any(fun range__is_none/1, [FalseRange1, FalseRange2]) of true -> []; - false -> [{FalseLabel,FalseInfo}] + false -> + FalseLabel = hipe_icode:if_false_label(If), + FalseArgRanges = [{Arg1, FalseRange1}, {Arg2, FalseRange2}], + FalseInfo = enter_defines(FalseArgRanges, Info), + [{FalseLabel, FalseInfo}] end, - UpdateInfo = True++False, + UpdateInfo = True ++ False, NewIF = if Rewrite -> - %%io:format("~w~n~w~n", [{Arg1,FalseRange1},{Arg2,FalseRange2}]), - %%io:format("Any none: ~w~n", [lists:any(fun range__is_none/1,[FalseRange1,FalseRange2])]), case UpdateInfo of - [] -> %%This is weird + [] -> %% This is weird If; - [{Label,_Info}] -> + [{Label, _Info}] -> hipe_icode:mk_goto(Label); - [_,_] -> + [_, _] -> If end; true -> @@ -692,7 +694,7 @@ normalize_name(Name) -> range_equality_propagation(Range_1, Range_2) -> True_range = inf(Range_1, Range_2), case {range(Range_1), range(Range_2)} of - {{N,N},{ N,N}} -> + {{N,N}, {N,N}} -> False_range_1 = none_range(), False_range_2 = none_range(); {{N1,N1}, {N2,N2}} -> @@ -781,26 +783,24 @@ analyse_type(Type, Info, Rewrite) -> TrueRange = inf(any_range(), OldVarRange), FalseRange = inf(none_range(), OldVarRange); _ -> - TrueRange = inf(none_range(),OldVarRange), + TrueRange = inf(none_range(), OldVarRange), FalseRange = OldVarRange end, TrueLabel = hipe_icode:type_true_label(Type), FalseLabel = hipe_icode:type_false_label(Type), - TrueInfo = - enter_define({Arg,TrueRange},Info), - FalseInfo = - enter_define({Arg,FalseRange},Info), - True = + TrueInfo = enter_define({Arg, TrueRange}, Info), + FalseInfo = enter_define({Arg, FalseRange}, Info), + True = case range__is_none(TrueRange) of true -> []; - false -> [{TrueLabel,TrueInfo}] + false -> [{TrueLabel, TrueInfo}] end, - False = + False = case range__is_none(FalseRange) of true -> []; - false -> [{FalseLabel,FalseInfo}] + false -> [{FalseLabel, FalseInfo}] end, - UpdateInfo = True++False, + UpdateInfo = True ++ False, NewType = if Rewrite -> case UpdateInfo of @@ -808,13 +808,13 @@ analyse_type(Type, Info, Rewrite) -> Type; [{Label,_Info}] -> hipe_icode:mk_goto(Label); - [_,_] -> + [_, _] -> Type end; true -> Type end, - {NewType,True ++ False}. + {NewType, True ++ False}. -spec compare_with_integer(integer(), #range{}) -> {#range{}, #range{}}. @@ -845,11 +845,11 @@ compare_with_integer(N, OldVarRange) -> -spec pp_ann(#ann{} | erl_types:erl_type()) -> string(). -pp_ann(#ann{range=#range{range=R, other=false}}) -> +pp_ann(#ann{range = #range{range = R, other = false}}) -> pp_range(R); -pp_ann(#ann{range=#range{range=empty, other=true}, type=Type}) -> +pp_ann(#ann{range = #range{range = empty, other = true}, type = Type}) -> t_to_string(Type); -pp_ann(#ann{range=#range{range=R, other=true}, type=Type}) -> +pp_ann(#ann{range = #range{range = R, other = true}, type = Type}) -> pp_range(R) ++ " | " ++ t_to_string(Type); pp_ann(Type) -> t_to_string(Type). @@ -913,23 +913,23 @@ set_other(R, O) -> R#range{other = O}. -spec range__min(#range{}) -> 'empty' | 'neg_inf' | integer(). -range__min(#range{range=empty}) -> empty; -range__min(#range{range={Min,_}}) -> Min. +range__min(#range{range = empty}) -> empty; +range__min(#range{range = {Min,_}}) -> Min. -spec range__max(#range{}) -> 'empty' | 'pos_inf' | integer(). -range__max(#range{range=empty}) -> empty; -range__max(#range{range={_,Max}}) -> Max. +range__max(#range{range = empty}) -> empty; +range__max(#range{range = {_,Max}}) -> Max. -spec range__is_none(#range{}) -> boolean(). -range__is_none(#range{range=empty, other=false}) -> true; +range__is_none(#range{range = empty, other = false}) -> true; range__is_none(#range{}) -> false. -spec range__is_empty(#range{}) -> boolean(). -range__is_empty(#range{range=empty}) -> true; -range__is_empty(#range{range={_,_}}) -> false. +range__is_empty(#range{range = empty}) -> true; +range__is_empty(#range{range = {_,_}}) -> false. -spec remove_point_types(#range{}, [#range{}]) -> #range{}. @@ -941,31 +941,31 @@ remove_point_types(Range, Ranges) -> -spec range__remove_constant(#range{}, #range{}) -> #range{}. -range__remove_constant(R = #range{range={C,C}}, #range{range={C,C}}) -> - R#range{range=empty}; -range__remove_constant(R = #range{range={C,H}}, #range{range={C,C}}) -> - R#range{range={C+1,H}}; -range__remove_constant(R = #range{range={L,C}}, #range{range={C,C}}) -> - R#range{range={L,C-1}}; -range__remove_constant(R = #range{}, #range{range={C,C}}) -> +range__remove_constant(#range{range = {C, C}} = R, #range{range = {C, C}}) -> + R#range{range = empty}; +range__remove_constant(#range{range = {C, H}} = R, #range{range = {C, C}}) -> + R#range{range = {C+1, H}}; +range__remove_constant(#range{range = {L, C}} = R, #range{range = {C, C}}) -> + R#range{range = {L, C-1}}; +range__remove_constant(#range{} = R, #range{range = {C,C}}) -> R; -range__remove_constant(R = #range{}, _) -> +range__remove_constant(#range{} = R, _) -> R. -spec any_type() -> #range{}. any_type() -> - #range{range=any_r(), other=true}. + #range{range = any_r(), other = true}. -spec any_range() -> #range{}. any_range() -> - #range{range=any_r(), other=false}. + #range{range = any_r(), other = false}. -spec none_range() -> #range{}. none_range() -> - #range{range=empty, other=true}. + #range{range = empty, other = true}. -spec none_type() -> #range{}. @@ -989,15 +989,15 @@ get_range_from_arg(Arg) -> Value = hipe_icode:const_value(Arg), case is_integer(Value) of true -> - #range{range={Value,Value}, other=false}; + #range{range = {Value, Value}, other = false}; false -> - #range{range=empty, other=true} + #range{range = empty, other = true} end; false -> case hipe_icode:is_annotated_variable(Arg) of true -> case hipe_icode:variable_annotation(Arg) of - {range_anno, #ann{range=Range}, _} -> + {range_anno, #ann{range = Range}, _} -> Range; {type_anno, Type, _} -> range_from_simple_type(Type) @@ -1022,8 +1022,8 @@ inf(#range{range=R1, other=O1}, #range{range=R2, other=O2}) -> range_inf(empty, _) -> empty; range_inf(_, empty) -> empty; range_inf({Min1,Max1}, {Min2,Max2}) -> - NewMin = inf_max([Min1,Min2]), - NewMax = inf_min([Max1,Max2]), + NewMin = inf_max([Min1, Min2]), + NewMax = inf_min([Max1, Max2]), case inf_geq(NewMax, NewMin) of true -> {NewMin, NewMax}; @@ -1105,7 +1105,7 @@ analyse_call_or_enter_fun(Fun, Args, CallType, LookupFun) -> [any_type()]; {hipe_bs_primop, {bs_get_integer, Size, Flags}} -> {Min, Max} = analyse_bs_get_integer(Size, Flags, length(Args) =:= 1), - [#range{range={Min, Max}, other=false}, any_type()]; + [#range{range = {Min, Max}, other = false}, any_type()]; {hipe_bs_primop, _} = Primop -> Type = hipe_icode_primops:type(Primop), range_from_type(Type) @@ -1115,9 +1115,9 @@ analyse_call_or_enter_fun(Fun, Args, CallType, LookupFun) -> -type unary_operation() :: fun((#range{}) -> #range{}). -spec basic_type(fun_name()) -> 'not_int' | 'not_analysed' - | {bin, bin_operation()} - | {unary, unary_operation()} - | {fcall, mfa()} | {hipe_bs_primop, _}. + | {'bin', bin_operation()} + | {'unary', unary_operation()} + | {'fcall', mfa()} | {'hipe_bs_primop', _}. %% Arithmetic operations basic_type('+') -> {bin, fun(R1, R2) -> range_add(R1, R2) end}; 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