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-rw-r--r--lib/hipe/icode/hipe_icode_range.erl212
1 files changed, 106 insertions, 106 deletions
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};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 10:05:55 +0000