diff options
Diffstat (limited to 'lib/compiler/src')
| -rw-r--r-- | lib/compiler/src/Makefile | 1 | ||||
| -rw-r--r-- | lib/compiler/src/beam_bsm.erl | 6 | ||||
| -rw-r--r-- | lib/compiler/src/beam_dead.erl | 27 | ||||
| -rw-r--r-- | lib/compiler/src/beam_dict.erl | 78 | ||||
| -rw-r--r-- | lib/compiler/src/beam_jump.erl | 44 | ||||
| -rw-r--r-- | lib/compiler/src/beam_type.erl | 8 | ||||
| -rw-r--r-- | lib/compiler/src/cerl_sets.erl | 206 | ||||
| -rw-r--r-- | lib/compiler/src/compile.erl | 6 | ||||
| -rw-r--r-- | lib/compiler/src/compiler.app.src | 5 | ||||
| -rw-r--r-- | lib/compiler/src/sys_core_fold.erl | 92 | ||||
| -rw-r--r-- | lib/compiler/src/v3_codegen.erl | 57 | ||||
| -rw-r--r-- | lib/compiler/src/v3_kernel.erl | 12 | ||||
| -rw-r--r-- | lib/compiler/src/v3_life.erl | 17 |
13 files changed, 390 insertions, 169 deletions
diff --git a/lib/compiler/src/Makefile b/lib/compiler/src/Makefile index 7c4cebdc28..78efc8dff0 100644 --- a/lib/compiler/src/Makefile +++ b/lib/compiler/src/Makefile @@ -70,6 +70,7 @@ MODULES = \ cerl \ cerl_clauses \ cerl_inline \ + cerl_sets \ cerl_trees \ compile \ core_lib \ diff --git a/lib/compiler/src/beam_bsm.erl b/lib/compiler/src/beam_bsm.erl index 2a15c1ddf3..ee3e88959d 100644 --- a/lib/compiler/src/beam_bsm.erl +++ b/lib/compiler/src/beam_bsm.erl @@ -242,6 +242,12 @@ btb_reaches_match_2([{bif,_,{f,F},Ss,Dst}=I|Is], Regs0, D0) -> Regs = btb_kill([Dst], Regs0), D = btb_follow_branch(F, Regs, D0), btb_reaches_match_1(Is, Regs, D); +btb_reaches_match_2([{get_map_elements,{f,F},Src,{list,Ls}}=I|Is], Regs0, D0) -> + {Ss,Ds} = beam_utils:split_even(Ls), + btb_ensure_not_used([Src|Ss], I, Regs0), + Regs = btb_kill(Ds, Regs0), + D = btb_follow_branch(F, Regs, D0), + btb_reaches_match_1(Is, Regs, D); btb_reaches_match_2([{test,bs_start_match2,{f,F},Live,[Ctx,_],Ctx}=I|Is], Regs0, D0) -> CtxRegs = btb_context_regs(Regs0), diff --git a/lib/compiler/src/beam_dead.erl b/lib/compiler/src/beam_dead.erl index 5932d8ce1d..bbe607cf19 100644 --- a/lib/compiler/src/beam_dead.erl +++ b/lib/compiler/src/beam_dead.erl @@ -96,7 +96,7 @@ move_move_into_block([], Acc) -> reverse(Acc). %%% forward(Is, Lc) -> - forward(Is, gb_trees:empty(), Lc, []). + forward(Is, #{}, Lc, []). forward([{move,_,_}=Move|[{label,L}|_]=Is], D, Lc, Acc) -> %% move/2 followed by jump/1 is optimized by backward/3. @@ -115,19 +115,20 @@ forward([{label,Lbl}=LblI,{block,[{set,[Dst],[Lit],move}|BlkIs]}=Blk|Is], D, Lc, %% cannot be reached in any other way than through the select_val/3 %% instruction (i.e. there can be no fallthrough to such label and %% it cannot be referenced by, for example, a jump/1 instruction). - Block = case gb_trees:lookup({Lbl,Dst}, D) of - {value,Lit} -> {block,BlkIs}; %Safe to remove move instruction. - _ -> Blk %Must keep move instruction. - end, + Key = {Lbl,Dst}, + Block = case D of + #{Key := Lit} -> {block,BlkIs}; %Safe to remove move instruction. + _ -> Blk %Must keep move instruction. + end, forward([Block|Is], D, Lc, [LblI|Acc]); forward([{label,Lbl}=LblI|[{move,Lit,Dst}|Is1]=Is0], D, Lc, Acc) -> %% Assumption: The target labels in a select_val/3 instruction %% cannot be reached in any other way than through the select_val/3 %% instruction (i.e. there can be no fallthrough to such label and %% it cannot be referenced by, for example, a jump/1 instruction). - Is = case gb_trees:lookup({Lbl,Dst}, D) of - {value,Lit} -> Is1; %Safe to remove move instruction. - _ -> Is0 %Keep move instruction. + Is = case maps:find({Lbl,Dst}, D) of + {ok,Lit} -> Is1; %Safe to remove move instruction. + _ -> Is0 %Keep move instruction. end, forward(Is, D, Lc, [LblI|Acc]); forward([{test,is_eq_exact,_,[Same,Same]}|Is], D, Lc, Acc) -> @@ -156,11 +157,11 @@ forward([], _, Lc, Acc) -> {Acc,Lc}. update_value_dict([Lit,{f,Lbl}|T], Reg, D0) -> Key = {Lbl,Reg}, - D = case gb_trees:lookup(Key, D0) of - none -> gb_trees:insert(Key, Lit, D0); %New. - {value,inconsistent} -> D0; %Inconsistent. - {value,_} -> gb_trees:update(Key, inconsistent, D0) - end, + D = case D0 of + #{Key := inconsistent} -> D0; + #{Key := _} -> D0#{Key := inconsistent}; + _ -> D0#{Key => Lit} + end, update_value_dict(T, Reg, D); update_value_dict([], _, D) -> D. diff --git a/lib/compiler/src/beam_dict.erl b/lib/compiler/src/beam_dict.erl index 68dc104dd3..b1aa98278e 100644 --- a/lib/compiler/src/beam_dict.erl +++ b/lib/compiler/src/beam_dict.erl @@ -31,22 +31,22 @@ -type index() :: non_neg_integer(). --type atom_tab() :: gb_trees:tree(atom(), index()). +-type atom_tab() :: #{atom() => index()}. -type import_tab() :: gb_trees:tree(mfa(), index()). --type fname_tab() :: gb_trees:tree(Name :: term(), index()). --type line_tab() :: gb_trees:tree({Fname :: index(), Line :: term()}, index()). +-type fname_tab() :: #{Name :: term() => index()}. +-type line_tab() :: #{{Fname :: index(), Line :: term()} => index()}. -type literal_tab() :: dict:dict(Literal :: term(), index()). -record(asm, - {atoms = gb_trees:empty() :: atom_tab(), + {atoms = #{} :: atom_tab(), exports = [] :: [{label(), arity(), label()}], locals = [] :: [{label(), arity(), label()}], imports = gb_trees:empty() :: import_tab(), strings = <<>> :: binary(), %String pool lambdas = [], %[{...}] literals = dict:new() :: literal_tab(), - fnames = gb_trees:empty() :: fname_tab(), - lines = gb_trees:empty() :: line_tab(), + fnames = #{} :: fname_tab(), + lines = #{} :: line_tab(), num_lines = 0 :: non_neg_integer(), %Number of line instructions next_import = 0 :: non_neg_integer(), string_offset = 0 :: non_neg_integer(), @@ -77,14 +77,12 @@ highest_opcode(#asm{highest_opcode=Op}) -> Op. %% atom(Atom, Dict) -> {Index,Dict'} -spec atom(atom(), bdict()) -> {pos_integer(), bdict()}. -atom(Atom, #asm{atoms=Atoms0}=Dict) when is_atom(Atom) -> - case gb_trees:lookup(Atom, Atoms0) of - {value,Index} -> - {Index,Dict}; - none -> - NextIndex = gb_trees:size(Atoms0) + 1, - Atoms = gb_trees:insert(Atom, NextIndex, Atoms0), - {NextIndex,Dict#asm{atoms=Atoms}} +atom(Atom, #asm{atoms=Atoms}=Dict) when is_atom(Atom) -> + case Atoms of + #{ Atom := Index} -> {Index,Dict}; + _ -> + NextIndex = maps:size(Atoms) + 1, + {NextIndex,Dict#asm{atoms=Atoms#{Atom=>NextIndex}}} end. %% Remembers an exported function. @@ -177,26 +175,22 @@ line([], #asm{num_lines=N}=Dict) -> %% No location available. Return the special pre-defined %% index 0. {0,Dict#asm{num_lines=N+1}}; -line([{location,Name,Line}], #asm{lines=Lines0,num_lines=N}=Dict0) -> +line([{location,Name,Line}], #asm{lines=Lines,num_lines=N}=Dict0) -> {FnameIndex,Dict1} = fname(Name, Dict0), - case gb_trees:lookup({FnameIndex,Line}, Lines0) of - {value,Index} -> - {Index,Dict1#asm{num_lines=N+1}}; - none -> - Index = gb_trees:size(Lines0) + 1, - Lines = gb_trees:insert({FnameIndex,Line}, Index, Lines0), - Dict = Dict1#asm{lines=Lines,num_lines=N+1}, - {Index,Dict} + Key = {FnameIndex,Line}, + case Lines of + #{Key := Index} -> {Index,Dict1#asm{num_lines=N+1}}; + _ -> + Index = maps:size(Lines) + 1, + {Index, Dict1#asm{lines=Lines#{Key=>Index},num_lines=N+1}} end. -fname(Name, #asm{fnames=Fnames0}=Dict) -> - case gb_trees:lookup(Name, Fnames0) of - {value,Index} -> - {Index,Dict}; - none -> - Index = gb_trees:size(Fnames0), - Fnames = gb_trees:insert(Name, Index, Fnames0), - {Index,Dict#asm{fnames=Fnames}} +fname(Name, #asm{fnames=Fnames}=Dict) -> + case Fnames of + #{Name := Index} -> {Index,Dict}; + _ -> + Index = maps:size(Fnames), + {Index,Dict#asm{fnames=Fnames#{Name=>Index}}} end. %% Returns the atom table. @@ -204,14 +198,12 @@ fname(Name, #asm{fnames=Fnames0}=Dict) -> -spec atom_table(bdict()) -> {non_neg_integer(), [[non_neg_integer(),...]]}. atom_table(#asm{atoms=Atoms}) -> - NumAtoms = gb_trees:size(Atoms), - Sorted = lists:keysort(2, gb_trees:to_list(Atoms)), - Fun = fun({A,_}) -> - L = atom_to_list(A), - [length(L)|L] - end, - AtomTab = lists:map(Fun, Sorted), - {NumAtoms,AtomTab}. + NumAtoms = maps:size(Atoms), + Sorted = lists:keysort(2, maps:to_list(Atoms)), + {NumAtoms,[begin + L = atom_to_list(A), + [length(L)|L] + end || {A,_} <- Sorted]}. %% Returns the table of local functions. %% local_table(Dict) -> {NumLocals, [{Function, Arity, Label}...]} @@ -273,11 +265,11 @@ my_term_to_binary(Term) -> non_neg_integer(),[{non_neg_integer(),non_neg_integer()}]}. line_table(#asm{fnames=Fnames0,lines=Lines0,num_lines=NumLineInstrs}) -> - NumFnames = gb_trees:size(Fnames0), - Fnames1 = lists:keysort(2, gb_trees:to_list(Fnames0)), + NumFnames = maps:size(Fnames0), + Fnames1 = lists:keysort(2, maps:to_list(Fnames0)), Fnames = [Name || {Name,_} <- Fnames1], - NumLines = gb_trees:size(Lines0), - Lines1 = lists:keysort(2, gb_trees:to_list(Lines0)), + NumLines = maps:size(Lines0), + Lines1 = lists:keysort(2, maps:to_list(Lines0)), Lines = [L || {L,_} <- Lines1], {NumLineInstrs,NumFnames,Fnames,NumLines,Lines}. diff --git a/lib/compiler/src/beam_jump.erl b/lib/compiler/src/beam_jump.erl index 52b6464c7f..80b2998ddc 100644 --- a/lib/compiler/src/beam_jump.erl +++ b/lib/compiler/src/beam_jump.erl @@ -152,14 +152,14 @@ function({function,Name,Arity,CLabel,Asm0}) -> share(Is0) -> %% We will get more sharing if we never fall through to a label. Is = eliminate_fallthroughs(Is0, []), - share_1(Is, dict:new(), [], []). + share_1(Is, #{}, [], []). share_1([{label,_}=Lbl|Is], Dict, [], Acc) -> share_1(Is, Dict, [], [Lbl|Acc]); share_1([{label,L}=Lbl|Is], Dict0, Seq, Acc) -> - case dict:find(Seq, Dict0) of + case maps:find(Seq, Dict0) of error -> - Dict = dict:store(Seq, L, Dict0), + Dict = maps:put(Seq, L, Dict0), share_1(Is, Dict, [], [Lbl|Seq ++ Acc]); {ok,Label} -> share_1(Is, Dict0, [], [Lbl,{jump,{f,Label}}|Acc]) @@ -188,7 +188,7 @@ clean_non_sharable(Dict) -> %% a sequence inside the 'try' block is a sequence that ends %% with an instruction that causes an exception. Any sequence %% that causes an exception must contain a line/1 instruction. - dict:filter(fun(K, _V) -> sharable_with_try(K) end, Dict). + maps:filter(fun(K, _V) -> sharable_with_try(K) end, Dict). sharable_with_try([{line,_}|_]) -> %% This sequence may cause an exception and may potentially @@ -268,13 +268,13 @@ extract_seq_1(_, _) -> no. -record(st, {fc, %Label for function class errors. entry, %Entry label (must not be moved). mlbl, %Moved labels. - labels %Set of referenced labels. + labels :: cerl_sets:set() %Set of referenced labels. }). opt([{label,Fc}|_]=Is0, CLabel) -> Lbls = initial_labels(Is0), find_fixpoint(fun(Is) -> - St = #st{fc=Fc,entry=CLabel,mlbl=dict:new(), + St = #st{fc=Fc,entry=CLabel,mlbl=#{}, labels=Lbls}, opt(Is, [], St) end, Is0). @@ -320,11 +320,11 @@ opt([{test,_,{f,_}=Lbl,_,_,_}=I|Is], Acc, St) -> opt([{select,_,_R,Fail,Vls}=I|Is], Acc, St) -> skip_unreachable(Is, [I|Acc], label_used([Fail|Vls], St)); opt([{label,Lbl}=I|Is], Acc, #st{mlbl=Mlbl}=St0) -> - case dict:find(Lbl, Mlbl) of + case maps:find(Lbl, Mlbl) of {ok,Lbls} -> %% Essential to remove the list of labels from the dictionary, %% since we will rescan the inserted labels. We MUST rescan. - St = St0#st{mlbl=dict:erase(Lbl, Mlbl)}, + St = St0#st{mlbl=maps:remove(Lbl, Mlbl)}, insert_labels([Lbl|Lbls], Is, Acc, St); error -> opt(Is, [I|Acc], St0) end; @@ -339,7 +339,7 @@ opt([{jump,{f,L}=Lbl}=I|Is], Acc0, #st{mlbl=Mlbl0}=St0) -> St = case Lbls of [] -> St0; [_|_] -> - Mlbl = dict:append_list(L, Lbls, Mlbl0), + Mlbl = maps_append_list(L, Lbls, Mlbl0), St0#st{mlbl=Mlbl} end, skip_unreachable(Is, [I|Acc], label_used(Lbl, St)); @@ -363,14 +363,20 @@ opt([I|Is], Acc, #st{labels=Used0}=St0) -> end; opt([], Acc, #st{fc=Fc,mlbl=Mlbl}) -> Code = reverse(Acc), - case dict:find(Fc, Mlbl) of + case maps:find(Fc, Mlbl) of {ok,Lbls} -> insert_fc_labels(Lbls, Mlbl, Code); error -> Code end. +maps_append_list(K,Vs,M) -> + case M of + #{K:=Vs0} -> M#{K:=Vs0++Vs}; % same order as dict + _ -> M#{K => Vs} + end. + insert_fc_labels([L|Ls], Mlbl, Acc0) -> Acc = [{label,L}|Acc0], - case dict:find(L, Mlbl) of + case maps:find(L, Mlbl) of error -> insert_fc_labels(Ls, Mlbl, Acc); {ok,Lbls} -> @@ -434,7 +440,7 @@ skip_unreachable([], Acc, St) -> %% Add one or more label to the set of used labels. -label_used({f,L}, St) -> St#st{labels=gb_sets:add(L, St#st.labels)}; +label_used({f,L}, St) -> St#st{labels=cerl_sets:add_element(L,St#st.labels)}; label_used([H|T], St0) -> label_used(T, label_used(H, St0)); label_used([], St) -> St; label_used(_Other, St) -> St. @@ -442,7 +448,7 @@ label_used(_Other, St) -> St. %% Test if label is used. is_label_used(L, St) -> - gb_sets:is_member(L, St#st.labels). + cerl_sets:is_element(L, St#st.labels). %% is_unreachable_after(Instruction) -> boolean() %% Test whether the code after Instruction is unreachable. @@ -472,14 +478,14 @@ is_exit_instruction(_) -> false. %% (including inside blocks). is_label_used_in(Lbl, Is) -> - is_label_used_in_1(Is, Lbl, gb_sets:empty()). + is_label_used_in_1(Is, Lbl, cerl_sets:new()). is_label_used_in_1([{block,Block}|Is], Lbl, Empty) -> lists:any(fun(I) -> is_label_used_in_block(I, Lbl) end, Block) orelse is_label_used_in_1(Is, Lbl, Empty); is_label_used_in_1([I|Is], Lbl, Empty) -> Used = ulbl(I, Empty), - gb_sets:is_member(Lbl, Used) orelse is_label_used_in_1(Is, Lbl, Empty); + cerl_sets:is_element(Lbl, Used) orelse is_label_used_in_1(Is, Lbl, Empty); is_label_used_in_1([], _, _) -> false. is_label_used_in_block({set,_,_,Info}, Lbl) -> @@ -506,7 +512,7 @@ remove_unused_labels(Is) -> rem_unused(Is, Used, []). rem_unused([{label,Lbl}=I|Is0], Used, [Prev|_]=Acc) -> - case gb_sets:is_member(Lbl, Used) of + case cerl_sets:is_element(Lbl, Used) of false -> Is = case is_unreachable_after(Prev) of true -> drop_upto_label(Is0); @@ -528,7 +534,7 @@ initial_labels([{line,_}|Is], Acc) -> initial_labels([{label,Lbl}|Is], Acc) -> initial_labels(Is, [Lbl|Acc]); initial_labels([{func_info,_,_,_},{label,Lbl}|_], Acc) -> - gb_sets:from_list([Lbl|Acc]). + cerl_sets:from_list([Lbl|Acc]). drop_upto_label([{label,_}|_]=Is) -> Is; drop_upto_label([_|Is]) -> drop_upto_label(Is); @@ -576,10 +582,10 @@ ulbl({get_map_elements,Lbl,_Src,_List}, Used) -> ulbl(_, Used) -> Used. mark_used({f,0}, Used) -> Used; -mark_used({f,L}, Used) -> gb_sets:add(L, Used). +mark_used({f,L}, Used) -> cerl_sets:add_element(L, Used). mark_used_list([{f,L}|T], Used) -> - mark_used_list(T, gb_sets:add(L, Used)); + mark_used_list(T, cerl_sets:add_element(L, Used)); mark_used_list([_|T], Used) -> mark_used_list(T, Used); mark_used_list([], Used) -> Used. diff --git a/lib/compiler/src/beam_type.erl b/lib/compiler/src/beam_type.erl index 4731b5e78e..7ab548152e 100644 --- a/lib/compiler/src/beam_type.erl +++ b/lib/compiler/src/beam_type.erl @@ -554,10 +554,10 @@ flush(Rs, [{set,[_],[],{put_tuple,_}}|_]=Is0, Acc0) -> Acc = flush_all(Rs, Is0, Acc0), {[],Acc}; flush(Rs0, [{set,Ds,Ss,_Op}|_], Acc0) -> - Save = gb_sets:from_list(Ss), + Save = cerl_sets:from_list(Ss), Acc = save_regs(Rs0, Save, Acc0), Rs1 = foldl(fun(S, A) -> mark(S, A, clean) end, Rs0, Ss), - Kill = gb_sets:from_list(Ds), + Kill = cerl_sets:from_list(Ds), Rs = kill_regs(Rs1, Kill), {Rs,Acc}; flush(Rs0, Is, Acc0) -> @@ -580,7 +580,7 @@ save_regs(Rs, Save, Acc) -> foldl(fun(R, A) -> save_reg(R, Save, A) end, Acc, Rs). save_reg({I,V,dirty}, Save, Acc) -> - case gb_sets:is_member(V, Save) of + case cerl_sets:is_element(V, Save) of true -> [{set,[V],[{fr,I}],fmove}|checkerror(Acc)]; false -> Acc end; @@ -590,7 +590,7 @@ kill_regs(Rs, Kill) -> [kill_reg(R, Kill) || R <- Rs]. kill_reg({_,V,_}=R, Kill) -> - case gb_sets:is_member(V, Kill) of + case cerl_sets:is_element(V, Kill) of true -> free; false -> R end; diff --git a/lib/compiler/src/cerl_sets.erl b/lib/compiler/src/cerl_sets.erl new file mode 100644 index 0000000000..4df78dc432 --- /dev/null +++ b/lib/compiler/src/cerl_sets.erl @@ -0,0 +1,206 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2000-2015. 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% +%% + +-module(cerl_sets). + +%% Standard interface. +-export([new/0,is_set/1,size/1,to_list/1,from_list/1]). +-export([is_element/2,add_element/2,del_element/2]). +-export([union/2,union/1,intersection/2,intersection/1]). +-export([is_disjoint/2]). +-export([subtract/2,is_subset/2]). +-export([fold/3,filter/2]). + +-export_type([set/0, set/1]). + +%%------------------------------------------------------------------------------ + +-type set() :: set(_). +-opaque set(Element) :: #{Element => 'ok'}. + +%%------------------------------------------------------------------------------ + +%% new() -> Set +-spec new() -> set(). + +new() -> #{}. + +%% is_set(Set) -> boolean(). +%% Return 'true' if Set is a set of elements, else 'false'. +-spec is_set(Set) -> boolean() when + Set :: term(). + +is_set(S) when is_map(S) -> true; +is_set(_) -> false. + +%% size(Set) -> int(). +%% Return the number of elements in Set. +-spec size(Set) -> non_neg_integer() when + Set :: set(). + +size(S) -> maps:size(S). + +%% to_list(Set) -> [Elem]. +%% Return the elements in Set as a list. +-spec to_list(Set) -> List when + Set :: set(Element), + List :: [Element]. + +to_list(S) -> maps:keys(S). + +%% from_list([Elem]) -> Set. +%% Build a set from the elements in List. +-spec from_list(List) -> Set when + List :: [Element], + Set :: set(Element). +from_list(Ls) -> maps:from_list([{K,ok}||K<-Ls]). + +%% is_element(Element, Set) -> boolean(). +%% Return 'true' if Element is an element of Set, else 'false'. +-spec is_element(Element, Set) -> boolean() when + Set :: set(Element). + +is_element(E,S) -> + case S of + #{E := _} -> true; + _ -> false + end. + +%% add_element(Element, Set) -> Set. +%% Return Set with Element inserted in it. +-spec add_element(Element, Set1) -> Set2 when + Set1 :: set(Element), + Set2 :: set(Element). + +add_element(E,S) -> S#{E=>ok}. + +-spec del_element(Element, Set1) -> Set2 when + Set1 :: set(Element), + Set2 :: set(Element). + +%% del_element(Element, Set) -> Set. +%% Return Set but with Element removed. +del_element(E,S) -> maps:remove(E,S). + +%% union(Set1, Set2) -> Set +%% Return the union of Set1 and Set2. +-spec union(Set1, Set2) -> Set3 when + Set1 :: set(Element), + Set2 :: set(Element), + Set3 :: set(Element). + +union(S1,S2) -> maps:merge(S1,S2). + +%% union([Set]) -> Set +%% Return the union of the list of sets. +-spec union(SetList) -> Set when + SetList :: [set(Element)], + Set :: set(Element). + +union([S1,S2|Ss]) -> + union1(union(S1, S2), Ss); +union([S]) -> S; +union([]) -> new(). + +union1(S1, [S2|Ss]) -> + union1(union(S1, S2), Ss); +union1(S1, []) -> S1. + +%% intersection(Set1, Set2) -> Set. +%% Return the intersection of Set1 and Set2. +-spec intersection(Set1, Set2) -> Set3 when + Set1 :: set(Element), + Set2 :: set(Element), + Set3 :: set(Element). + +intersection(S1, S2) -> + filter(fun (E) -> is_element(E, S1) end, S2). + +%% intersection([Set]) -> Set. +%% Return the intersection of the list of sets. +-spec intersection(SetList) -> Set when + SetList :: [set(Element),...], + Set :: set(Element). + +intersection([S1,S2|Ss]) -> + intersection1(intersection(S1, S2), Ss); +intersection([S]) -> S. + +intersection1(S1, [S2|Ss]) -> + intersection1(intersection(S1, S2), Ss); +intersection1(S1, []) -> S1. + +%% is_disjoint(Set1, Set2) -> boolean(). +%% Check whether Set1 and Set2 are disjoint. +-spec is_disjoint(Set1, Set2) -> boolean() when + Set1 :: set(Element), + Set2 :: set(Element). + +is_disjoint(S1, S2) when map_size(S1) < map_size(S2) -> + fold(fun (_, false) -> false; + (E, true) -> not is_element(E, S2) + end, true, S1); +is_disjoint(S1, S2) -> + fold(fun (_, false) -> false; + (E, true) -> not is_element(E, S1) + end, true, S2). + +%% subtract(Set1, Set2) -> Set. +%% Return all and only the elements of Set1 which are not also in +%% Set2. +-spec subtract(Set1, Set2) -> Set3 when + Set1 :: set(Element), + Set2 :: set(Element), + Set3 :: set(Element). + +subtract(S1, S2) -> + filter(fun (E) -> not is_element(E, S2) end, S1). + +%% is_subset(Set1, Set2) -> boolean(). +%% Return 'true' when every element of Set1 is also a member of +%% Set2, else 'false'. +-spec is_subset(Set1, Set2) -> boolean() when + Set1 :: set(Element), + Set2 :: set(Element). + +is_subset(S1, S2) -> + fold(fun (E, Sub) -> Sub andalso is_element(E, S2) end, true, S1). + +%% fold(Fun, Accumulator, Set) -> Accumulator. +%% Fold function Fun over all elements in Set and return Accumulator. +-spec fold(Function, Acc0, Set) -> Acc1 when + Function :: fun((Element, AccIn) -> AccOut), + Set :: set(Element), + Acc0 :: Acc, + Acc1 :: Acc, + AccIn :: Acc, + AccOut :: Acc. + +fold(F, Init, D) -> + lists:foldl(fun(E,Acc) -> F(E,Acc) end,Init,maps:keys(D)). + +%% filter(Fun, Set) -> Set. +%% Filter Set with Fun. +-spec filter(Pred, Set1) -> Set2 when + Pred :: fun((Element) -> boolean()), + Set1 :: set(Element), + Set2 :: set(Element). + +filter(F, D) -> + maps:from_list(lists:filter(fun({K,_}) -> F(K) end, maps:to_list(D))). diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl index 22810c910c..0158cf64db 100644 --- a/lib/compiler/src/compile.erl +++ b/lib/compiler/src/compile.erl @@ -342,10 +342,10 @@ run_tc({Name,Fun}, St) -> run_eprof({Name,Fun}, Name, St) -> io:format("~p: Running eprof\n", [Name]), - eprof:start_profiling([self()]), + c:appcall(tools, eprof, start_profiling, [[self()]]), Val = (catch Fun(St)), - eprof:stop_profiling(), - eprof:analyze(), + c:appcall(tools, eprof, stop_profiling, []), + c:appcall(tools, eprof, analyze, []), Val; run_eprof({_,Fun}, _, St) -> catch Fun(St). diff --git a/lib/compiler/src/compiler.app.src b/lib/compiler/src/compiler.app.src index 2a40c1c379..0bfd998301 100644 --- a/lib/compiler/src/compiler.app.src +++ b/lib/compiler/src/compiler.app.src @@ -45,6 +45,7 @@ cerl, cerl_clauses, cerl_inline, + cerl_sets, cerl_trees, compile, core_scan, @@ -69,5 +70,5 @@ {registered, []}, {applications, [kernel, stdlib]}, {env, []}, - {runtime_dependencies, ["stdlib-2.0","kernel-3.0","hipe-3.10.3","erts-7.0", - "crypto-3.3"]}]}. + {runtime_dependencies, ["stdlib-2.5","kernel-4.0","hipe-3.12","erts-7.0", + "crypto-3.6"]}]}. diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl index 37006cd8ce..7f4184fd30 100644 --- a/lib/compiler/src/sys_core_fold.erl +++ b/lib/compiler/src/sys_core_fold.erl @@ -92,10 +92,10 @@ -endif. %% Variable value info. --record(sub, {v=[], %Variable substitutions - s=[], %Variables in scope - t=[], %Types - in_guard=false}). %In guard or not. +-record(sub, {v=[], %Variable substitutions + s=cerl_sets:new() :: cerl_sets:set(), %Variables in scope + t=#{} :: map(), %Types + in_guard=false}). %In guard or not. -type type_info() :: cerl:cerl() | 'bool' | 'integer'. -type yes_no_maybe() :: 'yes' | 'no' | 'maybe'. @@ -1123,7 +1123,7 @@ let_substs(Vs0, As0, Sub0) -> {Vs2,As1,Ss} = let_substs_1(Vs1, As0, Sub1), Sub2 = sub_add_scope([V || #c_var{name=V} <- Vs2], Sub1), {Vs2,As1, - foldl(fun ({V,S}, Sub) -> sub_set_name(V, S, Sub) end, Sub2, Ss)}. + foldl(fun ({V,S}, Sub) -> sub_set_name(V, S, Sub) end, Sub2, Ss)}. let_substs_1(Vs, #c_values{es=As}, Sub) -> let_subst_list(Vs, As, Sub); @@ -1254,10 +1254,10 @@ is_subst(_) -> false. %% to force renaming if variables in the scope occurs as pattern %% variables. -sub_new() -> #sub{v=orddict:new(),s=gb_trees:empty(),t=[]}. +sub_new() -> #sub{v=orddict:new(),s=cerl_sets:new(),t=#{}}. sub_new(#sub{}=Sub) -> - Sub#sub{v=orddict:new(),t=[]}. + Sub#sub{v=orddict:new(),t=#{}}. sub_new_preserve_types(#sub{}=Sub) -> Sub#sub{v=orddict:new()}. @@ -1274,16 +1274,16 @@ sub_set_var(#c_var{name=V}, Val, Sub) -> sub_set_name(V, Val, #sub{v=S,s=Scope,t=Tdb0}=Sub) -> Tdb1 = kill_types(V, Tdb0), Tdb = copy_type(V, Val, Tdb1), - Sub#sub{v=orddict:store(V, Val, S),s=gb_sets:add(V, Scope),t=Tdb}. + Sub#sub{v=orddict:store(V, Val, S),s=cerl_sets:add_element(V, Scope),t=Tdb}. sub_del_var(#c_var{name=V}, #sub{v=S,s=Scope,t=Tdb}=Sub) -> %% Profiling shows that for programs with many record operations, %% sub_del_var/2 is a bottleneck. Since the scope contains all %% variables that are live, we know that V cannot be present in S %% if it is not in the scope. - case gb_sets:is_member(V, Scope) of + case cerl_sets:is_element(V, Scope) of false -> - Sub#sub{s=gb_sets:insert(V, Scope)}; + Sub#sub{s=cerl_sets:add_element(V, Scope)}; true -> Sub#sub{v=orddict:erase(V, S),t=kill_types(V, Tdb)} end. @@ -1294,12 +1294,12 @@ sub_subst_var(#c_var{name=V}, Val, #sub{v=S0}) -> sub_add_scope(Vs, #sub{s=Scope0}=Sub) -> Scope = foldl(fun(V, S) when is_integer(V); is_atom(V) -> - gb_sets:add(V, S) + cerl_sets:add_element(V, S) end, Scope0, Vs), Sub#sub{s=Scope}. sub_subst_scope(#sub{v=S0,s=Scope}=Sub) -> - S = [{-1,#c_var{name=Sv}} || Sv <- gb_sets:to_list(Scope)]++S0, + S = [{-1,#c_var{name=Sv}} || Sv <- cerl_sets:to_list(Scope)]++S0, Sub#sub{v=S}. sub_is_val(#c_var{name=V}, #sub{v=S,s=Scope}) -> @@ -1307,7 +1307,7 @@ sub_is_val(#c_var{name=V}, #sub{v=S,s=Scope}) -> %% became the new bottleneck. Since the scope contains all %% live variables, a variable V can only be the target for %% a substitution if it is in the scope. - gb_sets:is_member(V, Scope) andalso v_is_value(V, S). + cerl_sets:is_element(V, Scope) andalso v_is_value(V, S). v_is_value(Var, [{_,#c_var{name=Var}}|_]) -> true; v_is_value(Var, [_|T]) -> v_is_value(Var, T); @@ -1772,8 +1772,9 @@ case_opt_compiler_generated(Core) -> %% return Expr0 unchanged. %% case_expand_var(E, #sub{t=Tdb}) -> - case orddict:find(cerl:var_name(E), Tdb) of - {ok,T0} -> + Key = cerl:var_name(E), + case Tdb of + #{Key:=T0} -> case cerl:is_c_tuple(T0) of false -> E; @@ -1797,7 +1798,7 @@ case_expand_var(E, #sub{t=Tdb}) -> E end end; - error -> + _ -> E end. @@ -2159,7 +2160,7 @@ is_bool_expr_list([], _) -> true. %% functions, or is_record/2). %% is_safe_bool_expr(Core, Sub) -> - is_safe_bool_expr_1(Core, Sub, gb_sets:empty()). + is_safe_bool_expr_1(Core, Sub, cerl_sets:new()). is_safe_bool_expr_1(#c_call{module=#c_literal{val=erlang}, name=#c_literal{val=is_record}, @@ -2205,7 +2206,7 @@ is_safe_bool_expr_1(#c_let{vars=Vars,arg=Arg,body=B}, Sub, BoolVars) -> true -> case {is_safe_bool_expr_1(Arg, Sub, BoolVars),Vars} of {true,[#c_var{name=V}]} -> - is_safe_bool_expr_1(B, Sub, gb_sets:add(V, BoolVars)); + is_safe_bool_expr_1(B, Sub, cerl_sets:add_element(V, BoolVars)); {false,_} -> is_safe_bool_expr_1(B, Sub, BoolVars) end; @@ -2214,7 +2215,7 @@ is_safe_bool_expr_1(#c_let{vars=Vars,arg=Arg,body=B}, Sub, BoolVars) -> is_safe_bool_expr_1(#c_literal{val=Val}, _Sub, _) -> is_boolean(Val); is_safe_bool_expr_1(#c_var{name=V}, _Sub, BoolVars) -> - gb_sets:is_element(V, BoolVars); + cerl_sets:is_element(V, BoolVars); is_safe_bool_expr_1(_, _, _) -> false. is_safe_bool_expr_list([C|Cs], Sub, BoolVars) -> @@ -2248,7 +2249,7 @@ move_let_into_expr(#c_let{vars=InnerVs0,body=InnerBody0}=Inner, %% in <InnerBody> %% Arg = body(Arg0, Sub0), - ScopeSub0 = sub_subst_scope(Sub0#sub{t=[]}), + ScopeSub0 = sub_subst_scope(Sub0#sub{t=#{}}), {OuterVs,ScopeSub} = pattern_list(OuterVs0, ScopeSub0), OuterBody = body(OuterBody0, ScopeSub), @@ -2287,15 +2288,15 @@ move_let_into_expr(#c_let{vars=Lvs0,body=Lbody0}=Let, CaVars0 = Ca0#c_clause.pats, G0 = Ca0#c_clause.guard, B0 = Ca0#c_clause.body, - ScopeSub0 = sub_subst_scope(Sub0#sub{t=[]}), + ScopeSub0 = sub_subst_scope(Sub0#sub{t=#{}}), {CaVars,ScopeSub} = pattern_list(CaVars0, ScopeSub0), G = guard(G0, ScopeSub), B1 = body(B0, ScopeSub), {Lvs,B2,Sub1} = let_substs(Lvs0, B1, Sub0), - Sub2 = Sub1#sub{s=gb_sets:union(ScopeSub#sub.s, - Sub1#sub.s)}, + Sub2 = Sub1#sub{s=cerl_sets:union(ScopeSub#sub.s, + Sub1#sub.s)}, Lbody = body(Lbody0, Sub2), B = Let#c_let{vars=Lvs,arg=core_lib:make_values(B2),body=Lbody}, @@ -2592,7 +2593,7 @@ move_case_into_arg(#c_case{arg=#c_let{vars=OuterVars0,arg=OuterArg, %% let <OuterVars> = <OuterArg> %% in case <InnerArg> of <InnerClauses> end %% - ScopeSub0 = sub_subst_scope(Sub#sub{t=[]}), + ScopeSub0 = sub_subst_scope(Sub#sub{t=#{}}), {OuterVars,ScopeSub} = pattern_list(OuterVars0, ScopeSub0), InnerArg = body(InnerArg0, ScopeSub), Outer#c_let{vars=OuterVars,arg=OuterArg, @@ -2621,7 +2622,7 @@ move_case_into_arg(#c_case{arg=#c_case{arg=OuterArg, %% <OuterCb> %% end %% - ScopeSub0 = sub_subst_scope(Sub#sub{t=[]}), + ScopeSub0 = sub_subst_scope(Sub#sub{t=#{}}), {OuterPats,ScopeSub} = pattern_list(OuterPats0, ScopeSub0), OuterGuard = guard(OuterGuard0, ScopeSub), InnerArg = body(InnerArg0, ScopeSub), @@ -2706,9 +2707,9 @@ is_any_var_used([], _) -> false. -spec get_type(cerl:cerl(), #sub{}) -> type_info() | 'none'. get_type(#c_var{name=V}, #sub{t=Tdb}) -> - case orddict:find(V, Tdb) of - {ok,Type} -> Type; - error -> none + case Tdb of + #{V:=Type} -> Type; + _ -> none end; get_type(C, _) -> case cerl:type(C) of @@ -2823,35 +2824,38 @@ update_types_1(#c_var{name=V,anno=Anno}, Pat, Types) -> update_types_1(_, _, Types) -> Types. update_types_2(V, [#c_tuple{}=P], Types) -> - orddict:store(V, P, Types); + Types#{V=>P}; update_types_2(V, [#c_literal{val=Bool}], Types) when is_boolean(Bool) -> - orddict:store(V, bool, Types); + Types#{V=>bool}; update_types_2(V, [Type], Types) when is_atom(Type) -> - orddict:store(V, Type, Types); + Types#{V=>Type}; update_types_2(_, _, Types) -> Types. %% kill_types(V, Tdb) -> Tdb' %% Kill any entries that references the variable, %% either in the key or in the value. -kill_types(V, [{V,_}|Tdb]) -> - kill_types(V, Tdb); -kill_types(V, [{_,#c_tuple{}=Tuple}=Entry|Tdb]) -> +kill_types(V, Tdb) -> + maps:from_list(kill_types2(V,maps:to_list(Tdb))). + +kill_types2(V, [{V,_}|Tdb]) -> + kill_types2(V, Tdb); +kill_types2(V, [{_,#c_tuple{}=Tuple}=Entry|Tdb]) -> case core_lib:is_var_used(V, Tuple) of - false -> [Entry|kill_types(V, Tdb)]; - true -> kill_types(V, Tdb) + false -> [Entry|kill_types2(V, Tdb)]; + true -> kill_types2(V, Tdb) end; -kill_types(V, [{_,Atom}=Entry|Tdb]) when is_atom(Atom) -> - [Entry|kill_types(V, Tdb)]; -kill_types(_, []) -> []. +kill_types2(V, [{_,Atom}=Entry|Tdb]) when is_atom(Atom) -> + [Entry|kill_types2(V, Tdb)]; +kill_types2(_, []) -> []. %% copy_type(DestVar, SrcVar, Tdb) -> Tdb' %% If the SrcVar has a type, assign it to DestVar. %% copy_type(V, #c_var{name=Src}, Tdb) -> - case orddict:find(Src, Tdb) of - {ok,Type} -> orddict:store(V, Type, Tdb); - error -> Tdb + case Tdb of + #{Src:=Type} -> Tdb#{V=>Type}; + _ -> Tdb end; copy_type(_, _, Tdb) -> Tdb. @@ -3255,12 +3259,12 @@ format_error(bin_var_used_in_guard) -> verify_scope(E, #sub{s=Scope}) -> Free0 = cerl_trees:free_variables(E), Free = [V || V <- Free0, not is_tuple(V)], %Ignore function names. - case ordsets:is_subset(Free, gb_sets:to_list(Scope)) of + case ordsets:is_subset(Free, cerl_sets:to_list(Scope)) of true -> true; false -> io:format("~p\n", [E]), io:format("~p\n", [Free]), - io:format("~p\n", [gb_sets:to_list(Scope)]), + io:format("~p\n", [cerl_sets:to_list(Scope)]), false end. -endif. diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl index aa2ebc0f85..c9b1a45cfc 100644 --- a/lib/compiler/src/v3_codegen.erl +++ b/lib/compiler/src/v3_codegen.erl @@ -43,7 +43,7 @@ -export([module/2]). -import(lists, [member/2,keymember/3,keysort/2,keydelete/3, - append/1,map/2,flatmap/2,filter/2,foldl/3,foldr/3,mapfoldl/3, + append/1,flatmap/2,filter/2,foldl/3,foldr/3,mapfoldl/3, sort/1,reverse/1,reverse/2]). -import(v3_life, [vdb_find/2]). @@ -57,8 +57,7 @@ break, %Break label recv, %Receive label is_top_block, %Boolean: top block or not - functable=gb_trees:empty(), %Gb tree of local functions: - % {{Name,Arity},Label} + functable=#{}, %Map of local functions: {Name,Arity}=>Label in_catch=false, %Inside a catch or not. need_frame, %Need a stack frame. ultimate_failure %Label for ultimate match failure. @@ -673,9 +672,7 @@ select_val_cg(Type, R, [Val, {f,Lbl}], Tf, Vf, [{label,Lbl}|Sis]) -> [{test,select_type_test(Type),{f,Tf},[R]}, {test,is_eq_exact,{f,Vf},[R,{Type,Val}]}|Sis]; select_val_cg(Type, R, Vls0, Tf, Vf, Sis) -> - Vls1 = map(fun ({f,_Lbl} = F) -> F; - (Value) -> {Type,Value} - end, Vls0), + Vls1 = [case Value of {f,_Lbl} -> Value; _ -> {Type,Value} end || Value <- Vls0], [{test,select_type_test(Type),{f,Tf},[R]}, {select_val,R,{f,Vf},{list,Vls1}}|Sis]. select_type_test(integer) -> is_integer; @@ -1080,7 +1077,7 @@ protected_cg(Ts, Rs, _Fail, I, Vdb, Bef, St0) -> St2#cg{bfail=Pfail}), %%ok = io:fwrite("cg ~w: ~p~n", [?LINE,{Rs,I,Vdb,Aft}]), %% Set return values to false. - Mis = map(fun ({var,V}) -> {move,{atom,false},fetch_var(V, Aft)} end, Rs), + Mis = [{move,{atom,false},fetch_var(V,Aft)}||{var,V} <- Rs], {Tis ++ [{jump,{f,Psucc}}, {label,Pfail}] ++ Mis ++ [{label,Psucc}], Aft,St3#cg{bfail=St0#cg.bfail}}. @@ -1263,13 +1260,12 @@ enter_line(_, _, _) -> local_func_label(Name, Arity, St) -> local_func_label({Name,Arity}, St). -local_func_label(Key, #cg{functable=Tab}=St0) -> - case gb_trees:lookup(Key, Tab) of - {value,Label} -> - {Label,St0}; - none -> +local_func_label(Key, #cg{functable=Map}=St0) -> + case Map of + #{Key := Label} -> {Label,St0}; + _ -> {Label,St} = new_label(St0), - {Label,St#cg{functable=gb_trees:insert(Key, Label, Tab)}} + {Label,St#cg{functable=Map#{Key => Label}}} end. %% need_stack_frame(State) -> State' @@ -1992,25 +1988,28 @@ clear_dead(Sr, Until, Vdb) -> stk=clear_dead_stk(Sr#sr.stk, Until, Vdb)}. clear_dead_reg(Sr, Until, Vdb) -> - Reg = map(fun ({_I,V} = IV) -> - case vdb_find(V, Vdb) of - {V,_,L} when L > Until -> IV; - _ -> free %Remove anything else - end; - ({reserved,_I,_V} = Reserved) -> Reserved; - (free) -> free - end, Sr#sr.reg), + Reg = [case R of + {_I,V} = IV -> + case vdb_find(V, Vdb) of + {V,_,L} when L > Until -> IV; + _ -> free %Remove anything else + end; + {reserved,_I,_V} = Reserved -> Reserved; + free -> free + end || R <- Sr#sr.reg], reserve(Sr#sr.res, Reg, Sr#sr.stk). clear_dead_stk(Stk, Until, Vdb) -> - map(fun ({V} = T) -> - case vdb_find(V, Vdb) of - {V,_,L} when L > Until -> T; - _ -> dead %Remove anything else - end; - (free) -> free; - (dead) -> dead - end, Stk). + [case S of + {V} = T -> + case vdb_find(V, Vdb) of + {V,_,L} when L > Until -> T; + _ -> dead %Remove anything else + end; + free -> free; + dead -> dead + end || S <- Stk]. + %% sr_merge(Sr1, Sr2) -> Sr. %% Merge two stack/register states keeping the longest of both stack diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl index 7dff58582e..c21b2a1505 100644 --- a/lib/compiler/src/v3_kernel.erl +++ b/lib/compiler/src/v3_kernel.erl @@ -114,7 +114,7 @@ copy_anno(Kdst, Ksrc) -> ff, %Current function vcount=0, %Variable counter fcount=0, %Fun counter - ds=[], %Defined variables + ds=cerl_sets:new() :: cerl_sets:set(), %Defined variables funs=[], %Fun functions free=[], %Free variables ws=[] :: [warning()], %Warnings. @@ -148,7 +148,7 @@ include_attribute(_) -> true. function({#c_var{name={F,Arity}=FA},Body}, St0) -> try - St1 = St0#kern{func=FA,ff=undefined,vcount=0,fcount=0,ds=sets:new()}, + St1 = St0#kern{func=FA,ff=undefined,vcount=0,fcount=0,ds=cerl_sets:new()}, {#ifun{anno=Ab,vars=Kvs,body=B0},[],St2} = expr(Body, new_sub(), St1), {B1,_,St3} = ubody(B0, return, St2), %%B1 = B0, St3 = St2, %Null second pass @@ -715,15 +715,15 @@ force_variable(Ke, St0) -> %% handling. pattern(#c_var{anno=A,name=V}, _Isub, Osub, St0) -> - case sets:is_element(V, St0#kern.ds) of + case cerl_sets:is_element(V, St0#kern.ds) of true -> {New,St1} = new_var_name(St0), {#k_var{anno=A,name=New}, set_vsub(V, New, Osub), - St1#kern{ds=sets:add_element(New, St1#kern.ds)}}; + St1#kern{ds=cerl_sets:add_element(New, St1#kern.ds)}}; false -> {#k_var{anno=A,name=V},Osub, - St0#kern{ds=sets:add_element(V, St0#kern.ds)}} + St0#kern{ds=cerl_sets:add_element(V, St0#kern.ds)}} end; pattern(#c_literal{anno=A,val=Val}, _Isub, Osub, St) -> {#k_literal{anno=A,val=Val},Osub,St}; @@ -897,7 +897,7 @@ new_vars(0, St, Vs) -> {Vs,St}. make_vars(Vs) -> [ #k_var{name=V} || V <- Vs ]. add_var_def(V, St) -> - St#kern{ds=sets:add_element(V#k_var.name, St#kern.ds)}. + St#kern{ds=cerl_sets:add_element(V#k_var.name, St#kern.ds)}. %%add_vars_def(Vs, St) -> %% Ds = foldl(fun (#k_var{name=V}, Ds) -> add_element(V, Ds) end, diff --git a/lib/compiler/src/v3_life.erl b/lib/compiler/src/v3_life.erl index 4b1f1c3f71..ee0565efb6 100644 --- a/lib/compiler/src/v3_life.erl +++ b/lib/compiler/src/v3_life.erl @@ -411,7 +411,7 @@ is_gc_bif(Bif, Arity) -> %% must be sorted. init_vars(Vs) -> - sort([{V,0,0} || {var,V} <- Vs]). + vdb_new(Vs). new_vars([], _, Vdb) -> Vdb; new_vars([V], I, Vdb) -> vdb_store_new(V, {V,I,I}, Vdb); @@ -430,6 +430,16 @@ use_vars(Vs, I, Vdb) -> vdb_update_vars(Vs, Vdb, I). add_var(V, F, L, Vdb) -> vdb_store_new(V, {V,F,L}, Vdb). +%% is_in_guard() -> true|false. + +is_in_guard() -> + get(guard_refc) > 0. + +%% vdb + +vdb_new(Vs) -> + sort([{V,0,0} || {var,V} <- Vs]). + vdb_find(V, Vdb) -> case lists:keyfind(V, 1, Vdb) of false -> error; @@ -471,8 +481,3 @@ vdb_sub(Min, Max, Vdb) -> [ if L >= Max -> {V,F,locked}; true -> Vd end || {V,F,L}=Vd <- Vdb, F < Min, L >= Min ]. - -%% is_in_guard() -> true|false. - -is_in_guard() -> - get(guard_refc) > 0. |