diff options
Diffstat (limited to 'lib/hipe/icode/hipe_icode_range.erl')
| -rw-r--r-- | lib/hipe/icode/hipe_icode_range.erl | 152 |
1 files changed, 77 insertions, 75 deletions
diff --git a/lib/hipe/icode/hipe_icode_range.erl b/lib/hipe/icode/hipe_icode_range.erl index cdd5f7ace5..c222e8a5d5 100644 --- a/lib/hipe/icode/hipe_icode_range.erl +++ b/lib/hipe/icode/hipe_icode_range.erl @@ -59,15 +59,17 @@ -record(range, {range :: range_rep(), other :: boolean()}). +-type range() :: #range{}. --record(ann, {range :: #range{}, +-record(ann, {range :: range(), type :: erl_types:erl_type(), count :: integer()}). +-type ann() :: #ann{}. --type range_anno() :: {range_anno, #ann{}, fun((#ann{}) -> string())}. --type args_fun() :: fun((mfa(),cfg()) -> [#range{}]). --type call_fun() :: fun((mfa(),[#range{}]) -> #range{}). --type final_fun() :: fun((mfa(),[#range{}]) -> ok). +-type range_anno() :: {'range_anno', ann(), fun((ann()) -> string())}. +-type args_fun() :: fun((mfa(), cfg()) -> [range()]). +-type call_fun() :: fun((mfa(), [range()]) -> range()). +-type final_fun() :: fun((mfa(), [range()]) -> 'ok'). -type data() :: {mfa(), args_fun(), call_fun(), final_fun()}. -type label() :: non_neg_integer(). -type info() :: gb_tree(). @@ -75,15 +77,15 @@ -type variable() :: #icode_variable{}. -type annotated_variable() :: #icode_variable{}. -type argument() :: #icode_const{} | variable(). --type three_range_fun() :: fun((#range{},#range{},#range{}) -> #range{}). +-type three_range_fun() :: fun((range(),range(),range()) -> range()). -type instr_split_info() :: {icode_instr(), [{label(),info()}]}. --type last_instr_return() :: {instr_split_info(), #range{}}. +-type last_instr_return() :: {instr_split_info(), range()}. -record(state, {info_map = gb_trees:empty() :: info(), counter = dict:new() :: dict(), cfg :: cfg(), liveness = gb_trees:empty() :: gb_tree(), - ret_type :: #range{}, + ret_type :: range(), lookup_fun :: call_fun(), result_action :: final_fun()}). @@ -227,7 +229,7 @@ analyse_block(Label, Info, State, Rewrite) -> state__update_info(State2, InfoList, Rewrite). -spec analyse_BB([icode_instr()], info(), [icode_instr()], boolean(), call_fun()) -> - {[icode_instr()], [{label(),info()}], #range{}}. + {[icode_instr()], [{label(),info()}], range()}. analyse_BB([Last], Info, Code, Rewrite, LookupFun) -> {{NewI, LabelInfoList}, RetType} = @@ -268,7 +270,7 @@ handle_args(I, Info, WidenFun) -> NewUses = lists:zipwith(JoinFun, Uses, PresentRanges), hipe_icode:subst_uses(lists:zip(Uses, NewUses), I). --spec join_info(#ann{}, #range{}, three_range_fun()) -> #ann{}. +-spec join_info(ann(), range(), three_range_fun()) -> ann(). join_info(Ann = #ann{range = R1, type = Type, count = ?WIDEN}, R2, Fun) -> Ann#ann{range = Fun(R1, R2, range_from_simple_type(Type))}; @@ -278,17 +280,17 @@ join_info(Ann = #ann{range = R1, type = Type, count = C}, R2, _Fun) when C < ?WI NewR -> Ann#ann{range = NewR, count = C+1} end. --spec join_three(#range{}, #range{}, #range{}) -> #range{}. +-spec join_three(range(), range(), range()) -> range(). join_three(R1, R2, R3) -> inf(sup(R1, R2), R3). --spec update_info(variable(), #range{}) -> annotated_variable(). +-spec update_info(variable(), range()) -> annotated_variable(). update_info(Var, Range) -> update_info(Var, Range, fun update_three/3). --spec update_info(variable(), #range{}, three_range_fun()) -> annotated_variable(). +-spec update_info(variable(), range(), three_range_fun()) -> annotated_variable(). update_info(Arg, R, Fun) -> case hipe_icode:is_annotated_variable(Arg) of @@ -299,7 +301,7 @@ update_info(Arg, R, Fun) -> Arg end. --spec update_info1(any(), #range{}, three_range_fun()) -> range_anno(). +-spec update_info1(any(), range(), three_range_fun()) -> range_anno(). update_info1({range_anno, Ann, _}, R2, Fun) -> make_range_anno(update_ann(Ann,R2,Fun)); @@ -314,22 +316,22 @@ update_ann(Ann = #ann{range = R1, type = Type, count = C}, R2, _Fun) -> NewR -> Ann#ann{range = NewR, count = C+1} end. --spec type_to_ann(erl_types:erl_type()) -> #ann{}. +-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}. --spec make_range_anno(#ann{}) -> range_anno(). +-spec make_range_anno(ann()) -> range_anno(). make_range_anno(Ann) -> {range_anno, Ann, fun pp_ann/1}. --spec update_three(#range{}, #range{}, #range{}) -> #range{}. +-spec update_three(range(), range(), range()) -> range(). update_three(_R1, R2, R3) -> inf(R2, R3). --spec safe_widen(#range{}, #range{}, #range{}) -> #range{}. +-spec safe_widen(range(), range(), range()) -> range(). safe_widen(#range{range=Old}, #range{range=New}, T = #range{range=Wide}) -> ResRange = @@ -361,7 +363,7 @@ safe_widen(#range{range=Old}, #range{range=New}, T = #range{range=Wide}) -> end, T#range{range = ResRange}. --spec widen(#range{}, #range{}, #range{}) -> #range{}. +-spec widen(range(), range(), range()) -> range(). widen(#range{range=Old}, #range{range=New}, T = #range{range=Wide}) -> ResRange = @@ -494,14 +496,14 @@ analyse_switch_val(Switch, Info, Rewrite) -> end end. --spec update_infos(argument(), info(), [{#range{},label()}]) -> [{label(),info()}]. +-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)]; update_infos(_, _, []) -> []. --spec get_range_label_list([{argument(),label()}], #range{}, [{#range{},label()}]) -> - {#range{},[{#range{},label()}]}. +-spec get_range_label_list([{argument(),label()}], range(), [{range(),label()}]) -> + {range(),[{range(),label()}]}. get_range_label_list([{Val,Label}|Cases], SRange, Acc) -> VRange = get_range_from_arg(Val), @@ -516,7 +518,7 @@ get_range_label_list([], SRange, Acc) -> {PointTypes, _} = lists:unzip(Acc), {remove_point_types(SRange, PointTypes), Acc}. --spec update_switch(#icode_switch_val{}, [{#range{},label()}], boolean()) -> +-spec update_switch(#icode_switch_val{}, [{range(),label()}], boolean()) -> #icode_switch_val{}. update_switch(Switch, LabelRangeList, KeepFail) -> @@ -531,7 +533,7 @@ update_switch(Switch, LabelRangeList, KeepFail) -> true -> S2 end. --spec label_range_list_to_cases([{#range{},label()}], [{#icode_const{},label()}]) -> +-spec label_range_list_to_cases([{range(),label()}], [{#icode_const{},label()}]) -> 'no_update' | [{#icode_const{},label()}]. label_range_list_to_cases([{#range{range={C,C},other=false},Label}|Rest], @@ -605,7 +607,7 @@ analyse_if(If, Info, Rewrite) -> end. -spec analyse_sane_if(#icode_if{}, info(), [argument(),...], - [#range{},...], boolean()) -> + [range(),...], boolean()) -> {#icode_goto{} | #icode_if{}, [{label(), info()}]}. analyse_sane_if(If, Info, [Arg1, Arg2], [Range1, Range2], Rewrite) -> @@ -688,8 +690,8 @@ normalize_name(Name) -> Name -> Name end. --spec range_equality_propagation(#range{}, #range{}) -> - {#range{}, #range{}, #range{}, #range{}}. +-spec range_equality_propagation(range(), range()) -> + {range(), range(), range(), range()}. range_equality_propagation(Range_1, Range_2) -> True_range = inf(Range_1, Range_2), @@ -712,8 +714,8 @@ range_equality_propagation(Range_1, Range_2) -> end, {True_range, True_range, False_range_1, False_range_2}. --spec range_inequality_propagation(#range{}, #range{}) -> - {#range{}, #range{}, #range{}, #range{}}. +-spec range_inequality_propagation(range(), range()) -> + {range(), range(), range(), range()}. %% Range1 < Range2 range_inequality_propagation(Range1, Range2) -> @@ -816,7 +818,7 @@ analyse_type(Type, Info, Rewrite) -> end, {NewType, True ++ False}. --spec compare_with_integer(integer(), #range{}) -> {#range{}, #range{}}. +-spec compare_with_integer(integer(), range()) -> {range(), range()}. compare_with_integer(N, OldVarRange) -> TestRange = range_init({N, N}, false), @@ -843,7 +845,7 @@ compare_with_integer(N, OldVarRange) -> %%== Ranges ================================================================== --spec pp_ann(#ann{} | erl_types:erl_type()) -> string(). +-spec pp_ann(ann() | erl_types:erl_type()) -> string(). pp_ann(#ann{range = #range{range = R, other = false}}) -> pp_range(R); @@ -867,12 +869,12 @@ val_to_string(pos_inf) -> "inf"; val_to_string(neg_inf) -> "-inf"; val_to_string(X) when is_integer(X) -> integer_to_list(X). --spec range_from_type(erl_types:erl_type()) -> [#range{}]. +-spec range_from_type(erl_types:erl_type()) -> [range()]. range_from_type(Type) -> [range_from_simple_type(T) || T <- t_to_tlist(Type)]. --spec range_from_simple_type(erl_types:erl_type()) -> #range{}. +-spec range_from_simple_type(erl_types:erl_type()) -> range(). range_from_simple_type(Type) -> None = t_none(), @@ -887,7 +889,7 @@ range_from_simple_type(Type) -> #range{range = Range, other = true} end. --spec range_init(range_rep(), boolean()) -> #range{}. +-spec range_init(range_rep(), boolean()) -> range(). range_init({Min, Max} = Range, Other) -> case inf_geq(Max, Min) of @@ -899,39 +901,39 @@ range_init({Min, Max} = Range, Other) -> range_init(empty, Other) -> #range{range = empty, other = Other}. --spec range(#range{}) -> range_rep(). +-spec range(range()) -> range_rep(). range(#range{range = R}) -> R. --spec other(#range{}) -> boolean(). +-spec other(range()) -> boolean(). other(#range{other = O}) -> O. --spec set_other(#range{}, boolean()) -> #range{}. +-spec set_other(range(), boolean()) -> range(). set_other(R, O) -> R#range{other = O}. --spec range__min(#range{}) -> 'empty' | 'neg_inf' | integer(). +-spec range__min(range()) -> 'empty' | 'neg_inf' | integer(). range__min(#range{range = empty}) -> empty; range__min(#range{range = {Min,_}}) -> Min. --spec range__max(#range{}) -> 'empty' | 'pos_inf' | integer(). +-spec range__max(range()) -> 'empty' | 'pos_inf' | integer(). range__max(#range{range = empty}) -> empty; range__max(#range{range = {_,Max}}) -> Max. --spec range__is_none(#range{}) -> boolean(). +-spec range__is_none(range()) -> boolean(). range__is_none(#range{range = empty, other = false}) -> true; range__is_none(#range{}) -> false. --spec range__is_empty(#range{}) -> boolean(). +-spec range__is_empty(range()) -> boolean(). range__is_empty(#range{range = empty}) -> true; range__is_empty(#range{range = {_,_}}) -> false. --spec remove_point_types(#range{}, [#range{}]) -> #range{}. +-spec remove_point_types(range(), [range()]) -> range(). remove_point_types(Range, Ranges) -> Sorted = lists:sort(Ranges), @@ -939,7 +941,7 @@ remove_point_types(Range, Ranges) -> Range1 = lists:foldl(FoldFun, Range, Sorted), lists:foldl(FoldFun, Range1, lists:reverse(Sorted)). --spec range__remove_constant(#range{}, #range{}) -> #range{}. +-spec range__remove_constant(range(), range()) -> range(). range__remove_constant(#range{range = {C, C}} = R, #range{range = {C, C}}) -> R#range{range = empty}; @@ -952,22 +954,22 @@ range__remove_constant(#range{} = R, #range{range = {C,C}}) -> range__remove_constant(#range{} = R, _) -> R. --spec any_type() -> #range{}. +-spec any_type() -> range(). any_type() -> #range{range = any_r(), other = true}. --spec any_range() -> #range{}. +-spec any_range() -> range(). any_range() -> #range{range = any_r(), other = false}. --spec none_range() -> #range{}. +-spec none_range() -> range(). none_range() -> #range{range = empty, other = true}. --spec none_type() -> #range{}. +-spec none_type() -> range(). none_type() -> #range{range = empty, other = false}. @@ -976,12 +978,12 @@ none_type() -> any_r() -> {neg_inf, pos_inf}. --spec get_range_from_args([argument()]) -> [#range{}]. +-spec get_range_from_args([argument()]) -> [range()]. get_range_from_args(Args) -> [get_range_from_arg(Arg) || Arg <- Args]. --spec get_range_from_arg(argument()) -> #range{}. +-spec get_range_from_arg(argument()) -> range(). get_range_from_arg(Arg) -> case hipe_icode:is_const(Arg) of @@ -1012,7 +1014,7 @@ get_range_from_arg(Arg) -> %% inf([R1,R2|Rest]) -> %% inf([inf(R1,R2)|Rest]). --spec inf(#range{}, #range{}) -> #range{}. +-spec inf(range(), range()) -> range(). inf(#range{range=R1, other=O1}, #range{range=R2, other=O2}) -> #range{range=range_inf(R1,R2), other=other_inf(O1,O2)}. @@ -1035,14 +1037,14 @@ range_inf({Min1,Max1}, {Min2,Max2}) -> other_inf(O1, O2) -> O1 and O2. --spec sup([#range{},...]) -> #range{}. +-spec sup([range(),...]) -> range(). sup([R]) -> R; sup([R1,R2|Rest]) -> sup([sup(R1, R2)|Rest]). --spec sup(#range{}, #range{}) -> #range{}. +-spec sup(range(), range()) -> range(). sup(#range{range=R1,other=O1}, #range{range=R2,other=O2}) -> #range{range=range_sup(R1,R2), other=other_sup(O1,O2)}. @@ -1063,7 +1065,7 @@ other_sup(O1, O2) -> O1 or O2. %%== Call Support ============================================================= -spec analyse_call_or_enter_fun(fun_name(), [argument()], - icode_call_type(), call_fun()) -> [#range{}]. + icode_call_type(), call_fun()) -> [range()]. analyse_call_or_enter_fun(Fun, Args, CallType, LookupFun) -> %%io:format("Fun: ~p~n Args: ~p~n CT: ~p~n LF: ~p~n", [Fun, Args, CallType, LookupFun]), @@ -1111,8 +1113,8 @@ analyse_call_or_enter_fun(Fun, Args, CallType, LookupFun) -> range_from_type(Type) end. --type bin_operation() :: fun((#range{},#range{}) -> #range{}). --type unary_operation() :: fun((#range{}) -> #range{}). +-type bin_operation() :: fun((range(), range()) -> range()). +-type unary_operation() :: fun((range()) -> range()). -spec basic_type(fun_name()) -> 'not_int' | 'not_analysed' | {'bin', bin_operation()} @@ -1214,7 +1216,7 @@ analyse_bs_get_integer(Size, Flags, false) when is_integer(Size), %% Arithmetic --spec range_add(#range{}, #range{}) -> #range{}. +-spec range_add(range(), range()) -> range(). range_add(Range1, Range2) -> NewMin = inf_add(range__min(Range1), range__min(Range2)), @@ -1222,7 +1224,7 @@ range_add(Range1, Range2) -> Other = other(Range1) orelse other(Range2), range_init({NewMin, NewMax}, Other). --spec range_sub(#range{}, #range{}) -> #range{}. +-spec range_sub(range(), range()) -> range(). range_sub(Range1, Range2) -> Min_sub = inf_min([inf_inv(range__max(Range2)), @@ -1234,7 +1236,7 @@ range_sub(Range1, Range2) -> Other = other(Range1) orelse other(Range2), range_init({NewMin, NewMax}, Other). --spec range_mult(#range{}, #range{}) -> #range{}. +-spec range_mult(range(), range()) -> range(). range_mult(#range{range=empty, other=true}, _Range2) -> range_init(empty, true); @@ -1274,7 +1276,7 @@ range_mult(Range1, Range2) -> Other = other(Range1) orelse other(Range2), range_init(Range, Other). --spec extreme_divisors(#range{}) -> range_tuple(). +-spec extreme_divisors(range()) -> range_tuple(). extreme_divisors(#range{range={0,0}}) -> {0,0}; extreme_divisors(#range{range={0,Max}}) -> {1,Max}; @@ -1289,7 +1291,7 @@ extreme_divisors(#range{range={Min,Max}}) -> end end. --spec range_div(#range{}, #range{}) -> #range{}. +-spec range_div(range(), range()) -> range(). %% this is div, not /. range_div(_, #range{range={0,0}}) -> @@ -1306,7 +1308,7 @@ range_div(Range1, Den) -> inf_div(Max1, Min2), inf_div(Max1, Max2)], range_init({inf_min(Min_max_list), inf_max(Min_max_list)}, false). --spec range_rem(#range{}, #range{}) -> #range{}. +-spec range_rem(range(), range()) -> range(). range_rem(Range1, Range2) -> %% Range1 desides the sign of the answer. @@ -1332,7 +1334,7 @@ range_rem(Range1, Range2) -> %%--- Bit operations ---------------------------- --spec range_bsr(#range{}, #range{}) -> #range{}. +-spec range_bsr(range(), range()) -> range(). range_bsr(Range1, Range2=#range{range={Min, Max}}) -> New_Range2 = range_init({inf_inv(Max), inf_inv(Min)}, other(Range2)), @@ -1340,7 +1342,7 @@ range_bsr(Range1, Range2=#range{range={Min, Max}}) -> %% io:format("bsr res:~w~nInput:= ~w~n", [Ans, {Range1,Range2}]), Ans. --spec range_bsl(#range{}, #range{}) -> #range{}. +-spec range_bsl(range(), range()) -> range(). range_bsl(Range1, Range2) -> Min1 = range__min(Range1), @@ -1359,7 +1361,7 @@ range_bsl(Range1, Range2) -> end, range_init(MinMax, false). --spec range_bnot(#range{}) -> #range{}. +-spec range_bnot(range()) -> range(). range_bnot(Range) -> Minus_one = range_init({-1,-1}, false), @@ -1389,7 +1391,7 @@ negwidth(X, N) -> false -> negwidth(X, N+1) end. --spec range_band(#range{}, #range{}) -> #range{}. +-spec range_band(range(), range()) -> range(). range_band(R1, R2) -> {_Min1, Max1} = MM1 = range(R1), @@ -1423,7 +1425,7 @@ range_band(R1, R2) -> end, range_init(Range, false). --spec range_bor(#range{}, #range{}) -> #range{}. +-spec range_bor(range(), range()) -> range(). range_bor(R1, R2) -> {Min1, _Max1} = MM1 = range(R1), @@ -1457,7 +1459,7 @@ range_bor(R1, R2) -> end, range_init(Range, false). --spec classify_range(#range{}) -> 'minus_minus' | 'minus_plus' | 'plus_plus'. +-spec classify_range(range()) -> 'minus_minus' | 'minus_plus' | 'plus_plus'. classify_range(Range) -> case range(Range) of @@ -1480,7 +1482,7 @@ classify_int_range(_Number1, Number2) when Number2 < 0 -> classify_int_range(_Number1, _Number2) -> minus_plus. --spec range_bxor(#range{}, #range{}) -> #range{}. +-spec range_bxor(range(), range()) -> range(). range_bxor(R1, R2) -> {Min1, Max1} = MM1 = range(R1), @@ -1895,7 +1897,7 @@ convert_ann_to_types(#ann{range=#range{other=true}, type=Type}) -> %% Icode Coordinator Callbacks %%===================================================================== --spec replace_nones([#range{}]) -> [#range{}]. +-spec replace_nones([range()]) -> [range()]. replace_nones(Args) -> [replace_none(Arg) || Arg <- Args]. @@ -1905,7 +1907,7 @@ replace_none(Arg) -> false -> Arg end. --spec update__info([#range{}], [#range{}]) -> {boolean(), [#ann{}]}. +-spec update__info([range()], [range()]) -> {boolean(), [ann()]}. update__info(NewRanges, OldRanges) -> SupFun = fun (Ann, Range) -> join_info(Ann, Range, fun safe_widen/3) @@ -1915,19 +1917,19 @@ update__info(NewRanges, OldRanges) -> Change = lists:zipwith(EqFun, ResRanges, OldRanges), {lists:all(fun (X) -> X end, Change), ResRanges}. --spec new__info/1 :: ([#range{}]) -> [#ann{}]. +-spec new__info([range()]) -> [ann()]. new__info(NewRanges) -> [#ann{range=Range,count=1,type=t_any()} || Range <- NewRanges]. --spec return__info/1 :: ([#ann{}]) -> [#range{}]. +-spec return__info([ann()]) -> [range()]. return__info(Ranges) -> [Range || #ann{range=Range} <- Ranges]. --spec return_none/0 :: () -> [#range{},...]. +-spec return_none() -> [range(),...]. return_none() -> [none_type()]. --spec return_none_args/2 :: (#cfg{}, mfa()) -> [#range{}]. +-spec return_none_args(cfg(), mfa()) -> [range()]. return_none_args(Cfg, {_M,_F,A}) -> NoArgs = case hipe_icode_cfg:is_closure(Cfg) of @@ -1936,7 +1938,7 @@ return_none_args(Cfg, {_M,_F,A}) -> end, lists:duplicate(NoArgs, none_type()). --spec return_any_args/2 :: (#cfg{}, mfa()) -> [#range{}]. +-spec return_any_args(cfg(), mfa()) -> [range()]. return_any_args(Cfg, {_M,_F,A}) -> NoArgs = case hipe_icode_cfg:is_closure(Cfg) of |