diff options
Diffstat (limited to 'lib/compiler')
69 files changed, 3103 insertions, 2067 deletions
diff --git a/lib/compiler/src/Makefile b/lib/compiler/src/Makefile index c6d09d85eb..2032392821 100644 --- a/lib/compiler/src/Makefile +++ b/lib/compiler/src/Makefile @@ -81,6 +81,7 @@ MODULES = \ rec_env \ sys_core_dsetel \ sys_core_fold \ + sys_core_fold_lists \ sys_core_inline \ sys_pre_attributes \ sys_pre_expand \ @@ -187,6 +188,7 @@ $(EBIN)/core_parse.beam: core_parse.hrl $(EGEN)/core_parse.erl $(EBIN)/core_pp.beam: core_parse.hrl $(EBIN)/sys_core_dsetel.beam: core_parse.hrl $(EBIN)/sys_core_fold.beam: core_parse.hrl +$(EBIN)/sys_core_fold_lists.beam: core_parse.hrl $(EBIN)/sys_core_inline.beam: core_parse.hrl $(EBIN)/sys_pre_expand.beam: ../../stdlib/include/erl_bits.hrl $(EBIN)/v3_codegen.beam: v3_life.hrl diff --git a/lib/compiler/src/beam_a.erl b/lib/compiler/src/beam_a.erl index fe4f473846..dd7e03dd28 100644 --- a/lib/compiler/src/beam_a.erl +++ b/lib/compiler/src/beam_a.erl @@ -54,6 +54,9 @@ rename_instrs([{call_only,A,F}|Is]) -> [{call,A,F},return|rename_instrs(Is)]; rename_instrs([{call_ext_only,A,F}|Is]) -> [{call_ext,A,F},return|rename_instrs(Is)]; +rename_instrs([{'%live',_}|Is]) -> + %% When compiling from old .S files. + rename_instrs(Is); rename_instrs([I|Is]) -> [rename_instr(I)|rename_instrs(Is)]; rename_instrs([]) -> []. diff --git a/lib/compiler/src/beam_block.erl b/lib/compiler/src/beam_block.erl index 5626aa34ab..92f09e400c 100644 --- a/lib/compiler/src/beam_block.erl +++ b/lib/compiler/src/beam_block.erl @@ -155,7 +155,7 @@ collect(remove_message) -> {set,[],[],remove_message}; collect({put_map,F,Op,S,D,R,{list,Puts}}) -> {set,[D],[S|Puts],{alloc,R,{put_map,Op,F}}}; collect({get_map_elements,F,S,{list,Gets}}) -> - {Ss,Ds} = beam_utils:spliteven(Gets), + {Ss,Ds} = beam_utils:split_even(Gets), {set,Ds,[S|Ss],{get_map_elements,F}}; collect({'catch',R,L}) -> {set,[R],[],{'catch',L}}; collect(fclearerror) -> {set,[],[],fclearerror}; @@ -184,7 +184,7 @@ embed_lines([], Acc) -> Acc. opt_blocks([{block,Bl0}|Is]) -> %% The live annotation at the beginning is not useful. - [{'%live',_}|Bl] = Bl0, + [{'%live',_,_}|Bl] = Bl0, [{block,opt_block(Bl)}|opt_blocks(Is)]; opt_blocks([I|Is]) -> [I|opt_blocks(Is)]; @@ -269,7 +269,7 @@ opt([{set,_,_,{line,_}}=Line1, opt([{set,Ds0,Ss,Op}|Is0]) -> {Ds,Is} = opt_moves(Ds0, Is0), [{set,Ds,Ss,Op}|opt(Is)]; -opt([{'%live',_}=I|Is]) -> +opt([{'%live',_,_}=I|Is]) -> [I|opt(Is)]; opt([]) -> []. diff --git a/lib/compiler/src/beam_bool.erl b/lib/compiler/src/beam_bool.erl index 5a4621dc37..a452d30b61 100644 --- a/lib/compiler/src/beam_bool.erl +++ b/lib/compiler/src/beam_bool.erl @@ -126,44 +126,53 @@ bopt_block(Reg, Fail, OldIs, [{block,Bl0}|Acc0], St0) -> %% There was a reference to a boolean expression %% from inside a protected block (try/catch), to %% a boolean expression outside. - throw:protected_barrier -> + throw:protected_barrier -> failed; - %% The 'xor' operator was used. We currently don't - %% find it worthwile to translate 'xor' operators - %% (the code would be clumsy). - throw:'xor' -> + %% The 'xor' operator was used. We currently don't + %% find it worthwile to translate 'xor' operators + %% (the code would be clumsy). + throw:'xor' -> failed; - %% The block does not contain a boolean expression, - %% but only a call to a guard BIF. - %% For instance: ... when element(1, T) -> - throw:not_boolean_expr -> + %% The block does not contain a boolean expression, + %% but only a call to a guard BIF. + %% For instance: ... when element(1, T) -> + throw:not_boolean_expr -> failed; - %% The block contains a 'move' instruction that could - %% not be handled. - throw:move -> + %% The block contains a 'move' instruction that could + %% not be handled. + throw:move -> failed; - %% The optimization is not safe. (A register - %% used by the instructions following the - %% optimized code is either not assigned a - %% value at all or assigned a different value.) - throw:all_registers_not_killed -> + %% The optimization is not safe. (A register + %% used by the instructions following the + %% optimized code is either not assigned a + %% value at all or assigned a different value.) + throw:all_registers_not_killed -> failed; - throw:registers_used -> + throw:registers_used -> failed; - %% A protected block refered to the value - %% returned by another protected block, - %% probably because the Core Erlang code - %% used nested try/catches in the guard. - %% (v3_core never produces nested try/catches - %% in guards, so it must have been another - %% Core Erlang translator.) - throw:protected_violation -> + %% A protected block refered to the value + %% returned by another protected block, + %% probably because the Core Erlang code + %% used nested try/catches in the guard. + %% (v3_core never produces nested try/catches + %% in guards, so it must have been another + %% Core Erlang translator.) + throw:protected_violation -> + failed; + + %% Failed to work out the live registers for a GC + %% BIF. For example, if the number of live registers + %% needed to be 4 because {x,3} was a source register, + %% but {x,2} was not known to be initialized, this + %% exception would be thrown. + throw:gc_bif_alloc_failure -> failed + end end. @@ -665,10 +674,16 @@ put_reg_1(V, [], I) -> [{I,V}]. fetch_reg(V, [{I,V}|_]) -> {x,I}; fetch_reg(V, [_|SRs]) -> fetch_reg(V, SRs). -live_regs(Regs) -> - foldl(fun ({I,_}, _) -> - I - end, -1, Regs)+1. +live_regs([{_,reserved}|_]) -> + %% We are not sure that this register is initialized, so we must + %% abort the optimization. + throw(gc_bif_alloc_failure); +live_regs([{I,_}]) -> + I+1; +live_regs([{_,_}|Regs]) -> + live_regs(Regs); +live_regs([]) -> + 0. %%% diff --git a/lib/compiler/src/beam_clean.erl b/lib/compiler/src/beam_clean.erl index b653998252..b68b8702e0 100644 --- a/lib/compiler/src/beam_clean.erl +++ b/lib/compiler/src/beam_clean.erl @@ -234,31 +234,6 @@ replace([{bs_init,{f,Lbl},Info,Live,Ss,Dst}|Is], Acc, D) when Lbl =/= 0 -> replace(Is, [{bs_init,{f,label(Lbl, D)},Info,Live,Ss,Dst}|Acc], D); replace([{bs_put,{f,Lbl},Info,Ss}|Is], Acc, D) when Lbl =/= 0 -> replace(Is, [{bs_put,{f,label(Lbl, D)},Info,Ss}|Acc], D); -replace([{bs_init2,{f,Lbl},Sz,Words,R,F,Dst}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{bs_init2,{f,label(Lbl, D)},Sz,Words,R,F,Dst}|Acc], D); -replace([{bs_init_bits,{f,Lbl},Sz,Words,R,F,Dst}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{bs_init_bits,{f,label(Lbl, D)},Sz,Words,R,F,Dst}|Acc], D); -replace([{bs_put_integer,{f,Lbl},Bits,Unit,Fl,Val}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{bs_put_integer,{f,label(Lbl, D)},Bits,Unit,Fl,Val}|Acc], D); -replace([{bs_put_utf8=I,{f,Lbl},Fl,Val}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{I,{f,label(Lbl, D)},Fl,Val}|Acc], D); -replace([{bs_put_utf16=I,{f,Lbl},Fl,Val}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{I,{f,label(Lbl, D)},Fl,Val}|Acc], D); -replace([{bs_put_utf32=I,{f,Lbl},Fl,Val}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{I,{f,label(Lbl, D)},Fl,Val}|Acc], D); -replace([{bs_put_binary,{f,Lbl},Bits,Unit,Fl,Val}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{bs_put_binary,{f,label(Lbl, D)},Bits,Unit,Fl,Val}|Acc], D); -replace([{bs_put_float,{f,Lbl},Bits,Unit,Fl,Val}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{bs_put_float,{f,label(Lbl, D)},Bits,Unit,Fl,Val}|Acc], D); -replace([{bs_add,{f,Lbl},Src,Dst}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{bs_add,{f,label(Lbl, D)},Src,Dst}|Acc], D); -replace([{bs_append,{f,Lbl},_,_,_,_,_,_,_}=I0|Is], Acc, D) when Lbl =/= 0 -> - I = setelement(2, I0, {f,label(Lbl, D)}), - replace(Is, [I|Acc], D); -replace([{bs_utf8_size=I,{f,Lbl},Src,Dst}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{I,{f,label(Lbl, D)},Src,Dst}|Acc], D); -replace([{bs_utf16_size=I,{f,Lbl},Src,Dst}|Is], Acc, D) when Lbl =/= 0 -> - replace(Is, [{I,{f,label(Lbl, D)},Src,Dst}|Acc], D); replace([{put_map=I,{f,Lbl},Op,Src,Dst,Live,List}|Is], Acc, D) when Lbl =/= 0 -> replace(Is, [{I,{f,label(Lbl, D)},Op,Src,Dst,Live,List}|Acc], D); diff --git a/lib/compiler/src/beam_dead.erl b/lib/compiler/src/beam_dead.erl index b15adfa889..7cd07dc3be 100644 --- a/lib/compiler/src/beam_dead.erl +++ b/lib/compiler/src/beam_dead.erl @@ -21,112 +21,10 @@ -export([module/2]). -%%% The following optimisations are done: -%%% -%%% (1) In this code -%%% -%%% move DeadValue {x,0} -%%% jump L2 -%%% . -%%% . -%%% . -%%% L2: move Anything {x,0} -%%% . -%%% . -%%% . -%%% -%%% the first assignment to {x,0} has no effect (is dead), -%%% so it can be removed. Besides removing a move instruction, -%%% if the move was preceeded by a label, the resulting code -%%% will look this -%%% -%%% L1: jump L2 -%%% . -%%% . -%%% . -%%% L2: move Anything {x,0} -%%% . -%%% . -%%% . -%%% -%%% which can be further optimized by the jump optimizer (beam_jump). -%%% -%%% (2) In this code -%%% -%%% L1: move AtomLiteral {x,0} -%%% jump L2 -%%% . -%%% . -%%% . -%%% L2: test is_atom FailLabel {x,0} -%%% select_val {x,0}, FailLabel [... AtomLiteral => L3...] -%%% . -%%% . -%%% . -%%% L3: ... -%%% -%%% FailLabel: ... -%%% -%%% the first code fragment can be changed to -%%% -%%% L1: move AtomLiteral {x,0} -%%% jump L3 -%%% -%%% If the literal is not included in the table of literals in the -%%% select_val instruction, the first code fragment will instead be -%%% rewritten as: -%%% -%%% L1: move AtomLiteral {x,0} -%%% jump FailLabel -%%% -%%% The move instruction will be removed by optimization (1) above, -%%% if the code following the L3 label overwrites {x,0}. -%%% -%%% The code following the L2 label will be kept, but it will be removed later -%%% by the jump optimizer. -%%% -%%% (3) In this code -%%% -%%% test is_eq_exact ALabel Src Dst -%%% move Src Dst -%%% -%%% the move instruction can be removed. -%%% Same thing for -%%% -%%% test is_nil ALabel Dst -%%% move [] Dst -%%% -%%% -%%% (4) In this code -%%% -%%% select_val {x,Reg}, ALabel [... Literal => L1...] -%%% . -%%% . -%%% . -%%% L1: move Literal {x,Reg} -%%% -%%% we can remove the move instruction. -%%% -%%% (5) In the following code -%%% -%%% bif '=:=' Fail Src1 Src2 {x,0} -%%% jump L1 -%%% . -%%% . -%%% . -%%% L1: select_val {x,0}, ALabel [... true => L2..., ...false => L3...] -%%% . -%%% . -%%% . -%%% L2: .... L3: .... -%%% -%%% the first two instructions can be replaced with -%%% -%%% test is_eq_exact L3 Src1 Src2 -%%% jump L2 -%%% -%%% provided that {x,0} is killed at both L2 and L3. -%%% +%%% Dead code is code that is executed but has no effect. This +%%% optimization pass either removes dead code or jumps around it, +%%% potentially making it unreachable and a target for the +%%% the beam_jump pass. -import(lists, [mapfoldl/3,reverse/1]). @@ -173,7 +71,28 @@ move_move_into_block([I|Is], Acc) -> move_move_into_block([], Acc) -> reverse(Acc). %%% -%%% Scan instructions in execution order and remove dead code. +%%% Scan instructions in execution order and remove redundant 'move' +%%% instructions. 'move' instructions are redundant if we know that +%%% the register already contains the value being assigned, as in the +%%% following code: +%%% +%%% test is_eq_exact SomeLabel Src Dst +%%% move Src Dst +%%% +%%% or in: +%%% +%%% test is_nil SomeLabel Dst +%%% move nil Dst +%%% +%%% or in: +%%% +%%% select_val Register FailLabel [... Literal => L1...] +%%% . +%%% . +%%% . +%%% L1: move Literal Register +%%% +%%% Also add extra labels to help the second backward pass. %%% forward(Is, Lc) -> @@ -215,15 +134,13 @@ forward([{test,is_eq_exact,_,[Dst,Src]}=I,{move,Src,Dst}|Is], D, Lc, Acc) -> forward([I|Is], D, Lc, Acc); forward([{test,is_nil,_,[Dst]}=I,{move,nil,Dst}|Is], D, Lc, Acc) -> forward([I|Is], D, Lc, Acc); -forward([{test,is_eq_exact,_,_}=I|Is], D, Lc, Acc) -> - case Is of - [{label,_}|_] -> forward(Is, D, Lc, [I|Acc]); - _ -> forward(Is, D, Lc+1, [{label,Lc},I|Acc]) - end; -forward([{test,is_ne_exact,_,_}=I|Is], D, Lc, Acc) -> - case Is of - [{label,_}|_] -> forward(Is, D, Lc, [I|Acc]); - _ -> forward(Is, D, Lc+1, [{label,Lc},I|Acc]) +forward([{test,_,_,_}=I|Is]=Is0, D, Lc, Acc) -> + %% Help the second, backward pass to by inserting labels after + %% relational operators so that they can be skipped if they are + %% known to be true. + case useful_to_insert_label(Is0) of + false -> forward(Is, D, Lc, [I|Acc]); + true -> forward(Is, D, Lc+1, [{label,Lc},I|Acc]) end; forward([I|Is], D, Lc, Acc) -> forward(Is, D, Lc, [I|Acc]); @@ -239,9 +156,49 @@ update_value_dict([Lit,{f,Lbl}|T], Reg, D0) -> update_value_dict(T, Reg, D); update_value_dict([], _, D) -> D. +useful_to_insert_label([_,{label,_}|_]) -> + false; +useful_to_insert_label([{test,Op,_,_}|_]) -> + case Op of + is_lt -> true; + is_ge -> true; + is_eq_exact -> true; + is_ne_exact -> true; + _ -> false + end. + +%%% +%%% Scan instructions in reverse execution order and try to +%%% shortcut branch instructions. +%%% +%%% For example, in this code: +%%% +%%% move Literal Register +%%% jump L1 +%%% . +%%% . +%%% . +%%% L1: test is_{integer,atom} FailLabel Register +%%% select_val {x,0} FailLabel [... Literal => L2...] +%%% . +%%% . +%%% . +%%% L2: ... %%% -%%% Scan instructions in reverse execution order and remove dead code. +%%% the 'selectval' instruction will always transfer control to L2, +%%% so we can just as well jump to L2 directly by rewriting the +%%% first part of the sequence like this: %%% +%%% move Literal Register +%%% jump L2 +%%% +%%% If register Register is killed at label L2, we can remove the +%%% 'move' instruction, leaving just the 'jump' instruction: +%%% +%%% jump L2 +%%% +%%% These transformations may leave parts of the code unreachable. +%%% The beam_jump pass will remove the unreachable code. backward(Is, D) -> backward(Is, D, []). @@ -277,15 +234,10 @@ backward([{select,select_val,Reg,{f,Fail0},List0}|Is], D, Acc) -> Fail = shortcut_bs_test(Fail1, Is, D), 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 - {atom,Val0} -> - To1 = shortcut_select_label(To0, Reg, Val0, D), - {To2,Val} = shortcut_boolean_label(To1, Reg, Val0, D), - {To2,{move,{atom,Val},Reg}}; - _ -> - {shortcut_label(To0, D),Move0} - end, +backward([{jump,{f,To0}},{move,Src0,Reg}|Is], D, Acc) -> + To1 = shortcut_select_label(To0, Reg, Src0, D), + {To,Src} = shortcut_boolean_label(To1, Reg, Src0, D), + Move = {move,Src,Reg}, Jump = {jump,{f,To}}, case beam_utils:is_killed_at(Reg, To, D) of false -> backward([Move|Is], D, [Jump|Acc]); @@ -301,28 +253,25 @@ backward([{test,bs_start_match2,{f,To0},Live,[Src|_]=Info,Dst}|Is], D, Acc) -> To = shortcut_bs_start_match(To0, Src, D), I = {test,bs_start_match2,{f,To},Live,Info,Dst}, backward(Is, D, [I|Acc]); -backward([{test,is_eq_exact,{f,To0},[Reg,{atom,Val}]=Ops}|Is], D, Acc) -> - To1 = shortcut_bs_test(To0, Is, D), - To = shortcut_fail_label(To1, Reg, Val, D), - I = combine_eqs(To, Ops, D, Acc), - backward(Is, D, [I|Acc]); backward([{test,Op,{f,To0},Ops0}|Is], D, Acc) -> To1 = shortcut_bs_test(To0, Is, D), To2 = shortcut_label(To1, D), + To3 = shortcut_rel_op(To2, Op, Ops0, D), + %% Try to shortcut a repeated test: %% %% test Op {f,Fail1} Operands test Op {f,Fail2} Operands %% . . . ==> ... %% Fail1: test Op {f,Fail2} Operands Fail1: test Op {f,Fail2} Operands %% - To = case beam_utils:code_at(To2, D) of - [{test,Op,{f,To3},Ops}|_] -> + To = case beam_utils:code_at(To3, D) of + [{test,Op,{f,To4},Ops}|_] -> case equal_ops(Ops0, Ops) of - true -> To3; - false -> To2 + true -> To4; + false -> To3 end; _Code -> - To2 + To3 end, I = case Op of is_eq_exact -> combine_eqs(To, Ops0, D, Acc); @@ -367,8 +316,8 @@ equal_ops([Op|T0], [Op|T1]) -> equal_ops([], []) -> true; equal_ops(_, _) -> false. -shortcut_select_list([{_,Val}=Lit,{f,To0}|T], Reg, D, Acc) -> - To = shortcut_select_label(To0, Reg, Val, D), +shortcut_select_list([Lit,{f,To0}|T], Reg, D, Acc) -> + To = shortcut_select_label(To0, Reg, Lit, D), shortcut_select_list(T, Reg, D, [{f,To},Lit|Acc]); shortcut_select_list([], _, _, Acc) -> reverse(Acc). @@ -378,58 +327,39 @@ shortcut_label(To0, D) -> _ -> To0 end. -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,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) -> - shortcut_select_label(To, Reg, Val, D); - [{test,is_eq_exact,{f,_},[Reg,{atom,Val}]},{jump,{f,To}}|_] when is_atom(Val) -> - shortcut_select_label(To, Reg, Val, D); - [{test,is_eq_exact,{f,To},[Reg,{atom,AnotherVal}]}|_] - when is_atom(Val), Val =/= AnotherVal -> - shortcut_select_label(To, Reg, Val, D); - [{test,is_ne_exact,{f,To},[Reg,{atom,Val}]}|_] when is_atom(Val) -> - shortcut_select_label(To, Reg, Val, D); - [{test,is_ne_exact,{f,_},[Reg,{atom,_}]},{label,To}|_] when is_atom(Val) -> - shortcut_select_label(To, Reg, Val, D); - [{test,is_tuple,{f,To},[Reg]}|_] when is_atom(Val) -> - shortcut_select_label(To, Reg, Val, D); - _ -> - To0 - end. +shortcut_select_label(To, Reg, Lit, D) -> + shortcut_rel_op(To, is_ne_exact, [Reg,Lit], D). -shortcut_fail_label(To0, Reg, Val, D) -> - case beam_utils:code_at(To0, D) of - [{jump,{f,To}}|_] -> - shortcut_fail_label(To, Reg, Val, D); - [{test,is_eq_exact,{f,To},[Reg,{atom,Val}]}|_] when is_atom(Val) -> - shortcut_fail_label(To, Reg, Val, D); - _ -> - To0 - end. - -shortcut_boolean_label(To0, Reg, Bool0, D) when is_boolean(Bool0) -> +shortcut_boolean_label(To0, Reg, {atom,Bool0}=Lit, D) when is_boolean(Bool0) -> case beam_utils:code_at(To0, D) of [{line,_},{bif,'not',_,[Reg],Reg},{jump,{f,To}}|_] -> - Bool = not Bool0, + Bool = {atom,not Bool0}, {shortcut_select_label(To, Reg, Bool, D),Bool}; _ -> - {To0,Bool0} + {To0,Lit} end; shortcut_boolean_label(To, _, Bool, _) -> {To,Bool}. -find_select_val([{_,Val},{f,To}|_], Val, _) -> To; -find_select_val([{_,_}, {f,_}|T], Val, Fail) -> - find_select_val(T, Val, Fail); -find_select_val([], _, Fail) -> Fail. +%% Replace a comparison operator with a test instruction and a jump. +%% For example, if we have this code: +%% +%% bif '=:=' Fail Src1 Src2 {x,0} +%% jump L1 +%% . +%% . +%% . +%% L1: select_val {x,0} FailLabel [... true => L2..., ...false => L3...] +%% +%% the first two instructions can be replaced with +%% +%% test is_eq_exact L3 Src1 Src2 +%% jump L2 +%% +%% provided that {x,0} is killed at both L2 and L3. replace_comp_op(To, Reg, Op, Ops, D) -> - False = comp_op_find_shortcut(To, Reg, false, D), - True = comp_op_find_shortcut(To, Reg, true, D), + False = comp_op_find_shortcut(To, Reg, {atom,false}, D), + True = comp_op_find_shortcut(To, Reg, {atom,true}, D), [bif_to_test(Op, Ops, False),{jump,{f,True}}]. comp_op_find_shortcut(To0, Reg, Val, D) -> @@ -461,9 +391,9 @@ not_possible() -> throw(not_possible). %% %% is_eq_exact F1 Reg Lit1 select_val Reg F2 [ Lit1 L1 %% L1: . Lit2 L2 ] -%% . -%% . ==> -%% . +%% . +%% . ==> +%% . %% F1: is_eq_exact F2 Reg Lit2 F1: is_eq_exact F2 Reg Lit2 %% L2: .... L2: %% @@ -488,31 +418,26 @@ remove_from_list(Lit, [Val,{f,_}=Fail|T]) -> [Val,Fail|remove_from_list(Lit, T)]; remove_from_list(_, []) -> []. -%% shortcut_bs_test(TargetLabel, [Instruction], D) -> TargetLabel' -%% Try to shortcut the failure label for a bit syntax matching. -%% We know that the binary contains at least Bits bits after -%% the latest save point. +%% shortcut_bs_test(TargetLabel, ReversedInstructions, D) -> TargetLabel' +%% Try to shortcut the failure label for bit syntax matching. shortcut_bs_test(To, Is, D) -> shortcut_bs_test_1(beam_utils:code_at(To, D), Is, To, D). -shortcut_bs_test_1([{bs_restore2,Reg,SavePoint}|Is], PrevIs, To, D) -> - shortcut_bs_test_2(Is, {Reg,SavePoint}, PrevIs, To, D); -shortcut_bs_test_1([_|_], _, To, _) -> To. - -shortcut_bs_test_2([{label,_}|Is], Save, PrevIs, To, D) -> - shortcut_bs_test_2(Is, Save, PrevIs, To, D); -shortcut_bs_test_2([{test,bs_test_tail2,{f,To},[_,TailBits]}|_], - {Reg,_Point} = RP, PrevIs, To0, D) -> - case count_bits_matched(PrevIs, RP, 0) of +shortcut_bs_test_1([{bs_restore2,Reg,SavePoint}, + {label,_}, + {test,bs_test_tail2,{f,To},[_,TailBits]}|_], + PrevIs, To0, D) -> + case count_bits_matched(PrevIs, {Reg,SavePoint}, 0) of Bits when Bits > TailBits -> %% This instruction will fail. We know because a restore has been - %% done from the previous point SavePoint in the binary, and we also know - %% that the binary contains at least Bits bits from SavePoint. + %% done from the previous point SavePoint in the binary, and we + %% also know that the binary contains at least Bits bits from + %% SavePoint. %% %% Since we will skip a bs_restore2 if we shortcut to label To, - %% we must now make sure that code at To does not depend on the position - %% in the context in any way. + %% we must now make sure that code at To does not depend on + %% the position in the context in any way. case shortcut_bs_pos_used(To, Reg, D) of false -> To; true -> To0 @@ -520,8 +445,19 @@ shortcut_bs_test_2([{test,bs_test_tail2,{f,To},[_,TailBits]}|_], _Bits -> To0 end; -shortcut_bs_test_2([_|_], _, _, To, _) -> To. +shortcut_bs_test_1([_|_], _, To, _) -> To. +%% counts_bits_matched(ReversedInstructions, SavePoint, Bits) -> Bits' +%% Given a reversed instruction stream, determine the minimum number +%% of bits that will be matched by bit syntax instructions up to the +%% given save point. + +count_bits_matched([{test,bs_get_utf8,{f,_},_,_,_}|Is], SavePoint, Bits) -> + count_bits_matched(Is, SavePoint, Bits+8); +count_bits_matched([{test,bs_get_utf16,{f,_},_,_,_}|Is], SavePoint, Bits) -> + count_bits_matched(Is, SavePoint, Bits+16); +count_bits_matched([{test,bs_get_utf32,{f,_},_,_,_}|Is], SavePoint, Bits) -> + count_bits_matched(Is, SavePoint, Bits+32); count_bits_matched([{test,_,_,_,[_,Sz,U,{field_flags,_}],_}|Is], SavePoint, Bits) -> case Sz of {integer,N} -> count_bits_matched(Is, SavePoint, Bits+N*U); @@ -545,20 +481,332 @@ shortcut_bs_pos_used_1(Is, Reg, D) -> not beam_utils:is_killed(Reg, Is, D). %% shortcut_bs_start_match(TargetLabel, Reg) -> TargetLabel -%% A failing bs_start_match2 instruction means that the source -%% cannot be a binary, so there is no need to jump bs_context_to_binary/1 -%% or another bs_start_match2 instruction. +%% A failing bs_start_match2 instruction means that the source (Reg) +%% cannot be a binary. That means that it is safe to skip +%% bs_context_to_binary instructions operating on Reg, and +%% bs_start_match2 instructions operating on Reg. shortcut_bs_start_match(To, Reg, D) -> - shortcut_bs_start_match_1(beam_utils:code_at(To, D), Reg, To). + shortcut_bs_start_match_1(beam_utils:code_at(To, D), Reg, To, D). + +shortcut_bs_start_match_1([{bs_context_to_binary,Reg}|Is], Reg, To, D) -> + shortcut_bs_start_match_1(Is, Reg, To, D); +shortcut_bs_start_match_1([{jump,{f,To}}|_], Reg, _, D) -> + Code = beam_utils:code_at(To, D), + shortcut_bs_start_match_1(Code, Reg, To, D); +shortcut_bs_start_match_1([{test,bs_start_match2,{f,To},_,[Reg|_],_}|_], + Reg, _, D) -> + Code = beam_utils:code_at(To, D), + shortcut_bs_start_match_1(Code, Reg, To, D); +shortcut_bs_start_match_1(_, _, To, _) -> + To. -shortcut_bs_start_match_1([{bs_context_to_binary,Reg}|Is], Reg, To) -> - shortcut_bs_start_match_2(Is, Reg, To); -shortcut_bs_start_match_1(_, _, To) -> To. +%% shortcut_rel_op(FailLabel, Operator, [Operand], D) -> FailLabel' +%% Try to shortcut the given test instruction. Example: +%% +%% is_ge L1 {x,0} 48 +%% . +%% . +%% . +%% L1: is_ge L2 {x,0} 65 +%% +%% The first test instruction can be rewritten to "is_ge L2 {x,0} 48" +%% since the instruction at L1 will also fail. +%% +%% If there are instructions between L1 and the other test instruction +%% it may still be possible to do the shortcut. For example: +%% +%% L1: is_eq_exact L3 {x,0} 92 +%% is_ge L2 {x,0} 65 +%% +%% Since the first test instruction failed, we know that {x,0} must +%% be less than 48; therefore, we know that {x,0} cannot be equal to +%% 92 and the jump to L3 cannot happen. + +shortcut_rel_op(To, Op, Ops, D) -> + case normalize_op({test,Op,{f,To},Ops}) of + {{NormOp,A,B},_} -> + Normalized = {negate_op(NormOp),A,B}, + shortcut_rel_op_fp(To, Normalized, D); + {_,_} -> + To; + error -> + To + end. -shortcut_bs_start_match_2([{jump,{f,To}}|_], _, _) -> - To; -shortcut_bs_start_match_2([{test,bs_start_match2,{f,To},_,[Reg|_],_}|_], Reg, _) -> - To; -shortcut_bs_start_match_2(_Is, _Reg, To) -> - To. +shortcut_rel_op_fp(To0, Normalized, D) -> + Code = beam_utils:code_at(To0, D), + case shortcut_any_label(Code, Normalized) of + error -> + To0; + To -> + shortcut_rel_op_fp(To, Normalized, D) + end. + +%% shortcut_any_label([Instruction], PrevCondition) -> FailLabel | error +%% Using PrevCondition (a previous condition known to be true), +%% try to shortcut to another failure label. + +shortcut_any_label([{jump,{f,Lbl}}|_], _Prev) -> + Lbl; +shortcut_any_label([{label,Lbl}|_], _Prev) -> + Lbl; +shortcut_any_label([{select,select_val,R,{f,Fail},L}|_], Prev) -> + shortcut_selectval(L, R, Fail, Prev); +shortcut_any_label([I|Is], Prev) -> + case normalize_op(I) of + error -> + error; + {Normalized,Fail} -> + %% We have a relational operator. + case will_succeed(Prev, Normalized) of + no -> + %% This test instruction will always branch + %% to Fail. + Fail; + yes -> + %% This test instruction will never branch, + %% so we will look at the next instruction. + shortcut_any_label(Is, Prev); + maybe -> + %% May or may not branch. From now on, we can only + %% shortcut to the this specific failure label + %% Fail. + shortcut_specific_label(Is, Fail, Prev) + end + end. + +%% shortcut_specific_label([Instruction], FailLabel, PrevCondition) -> +%% FailLabel | error +%% We have previously encountered a test instruction that may or +%% may not branch to FailLabel. Therefore we are only allowed +%% to do the shortcut to the same fail label (FailLabel). + +shortcut_specific_label([{label,_}|Is], Fail, Prev) -> + shortcut_specific_label(Is, Fail, Prev); +shortcut_specific_label([{select,select_val,R,{f,F},L}|_], Fail, Prev) -> + case shortcut_selectval(L, R, F, Prev) of + Fail -> Fail; + _ -> error + end; +shortcut_specific_label([I|Is], Fail, Prev) -> + case normalize_op(I) of + error -> + error; + {Normalized,Fail} -> + case will_succeed(Prev, Normalized) of + no -> + %% Will branch to FailLabel. + Fail; + yes -> + %% Will definitely never branch. + shortcut_specific_label(Is, Fail, Prev); + maybe -> + %% May branch, but still OK since it will branch + %% to FailLabel. + shortcut_specific_label(Is, Fail, Prev) + end; + {Normalized,_} -> + %% This test instruction will branch to a different + %% fail label, if it branches at all. + case will_succeed(Prev, Normalized) of + yes -> + %% Still OK, since the branch will never be + %% taken. + shortcut_specific_label(Is, Fail, Prev); + no -> + %% Give up. The branch will definitely be taken + %% to a different fail label. + error; + maybe -> + %% Give up. If the branch is taken, it will be + %% to a different fail label. + error + end + end. + + +%% shortcut_selectval(List, Reg, Fail, PrevCond) -> FailLabel | error +%% Try to shortcut a selectval instruction. A selectval instruction +%% is equivalent to the following instruction sequence: +%% +%% is_ne_exact L1 Reg Value1 +%% . +%% . +%% . +%% is_ne_exact LN Reg ValueN +%% jump DefaultFailLabel +%% +shortcut_selectval([Val,{f,Lbl}|T], R, Fail, Prev) -> + case will_succeed(Prev, {'=/=',R,get_literal(Val)}) of + yes -> shortcut_selectval(T, R, Fail, Prev); + no -> Lbl; + maybe -> error + end; +shortcut_selectval([], _, Fail, _) -> Fail. + +%% will_succeed(PrevCondition, Condition) -> yes | no | maybe +%% PrevCondition is a condition known to be true. This function +%% will tell whether Condition will succeed. + +will_succeed({Op1,Reg,A}, {Op2,Reg,B}) -> + will_succeed_1(Op1, A, Op2, B); +will_succeed({'=:=',Reg,{literal,A}}, {TypeTest,Reg}) -> + case erlang:TypeTest(A) of + false -> no; + true -> yes + end; +will_succeed({_,_,_}, maybe) -> + maybe; +will_succeed({_,_,_}, Test) when is_tuple(Test) -> + maybe. + +will_succeed_1('=:=', A, '<', B) -> + if + B =< A -> no; + true -> yes + end; +will_succeed_1('=:=', A, '=<', B) -> + if + B < A -> no; + true -> yes + end; +will_succeed_1('=:=', A, '=:=', B) -> + if + A =:= B -> yes; + true -> no + end; +will_succeed_1('=:=', A, '=/=', B) -> + if + A =:= B -> no; + true -> yes + end; +will_succeed_1('=:=', A, '>=', B) -> + if + B > A -> no; + true -> yes + end; +will_succeed_1('=:=', A, '>', B) -> + if + B >= A -> no; + true -> yes + end; + +will_succeed_1('=/=', A, '=/=', B) when A =:= B -> yes; +will_succeed_1('=/=', A, '=:=', B) when A =:= B -> no; + +will_succeed_1('<', A, '=:=', B) when B >= A -> no; +will_succeed_1('<', A, '=/=', B) when B >= A -> yes; +will_succeed_1('<', A, '<', B) when B >= A -> yes; +will_succeed_1('<', A, '=<', B) when B > A -> yes; +will_succeed_1('<', A, '>=', B) when B > A -> no; +will_succeed_1('<', A, '>', B) when B >= A -> no; + +will_succeed_1('=<', A, '=:=', B) when B > A -> no; +will_succeed_1('=<', A, '=/=', B) when B > A -> yes; +will_succeed_1('=<', A, '<', B) when B > A -> yes; +will_succeed_1('=<', A, '=<', B) when B >= A -> yes; +will_succeed_1('=<', A, '>=', B) when B > A -> no; +will_succeed_1('=<', A, '>', B) when B >= A -> no; + +will_succeed_1('>=', A, '=:=', B) when B < A -> no; +will_succeed_1('>=', A, '=/=', B) when B < A -> yes; +will_succeed_1('>=', A, '<', B) when B =< A -> no; +will_succeed_1('>=', A, '=<', B) when B < A -> no; +will_succeed_1('>=', A, '>=', B) when B =< A -> yes; +will_succeed_1('>=', A, '>', B) when B < A -> yes; + +will_succeed_1('>', A, '=:=', B) when B =< A -> no; +will_succeed_1('>', A, '=/=', B) when B =< A -> yes; +will_succeed_1('>', A, '<', B) when B =< A -> no; +will_succeed_1('>', A, '=<', B) when B < A -> no; +will_succeed_1('>', A, '>=', B) when B =< A -> yes; +will_succeed_1('>', A, '>', B) when B < A -> yes; + +will_succeed_1(_, _, _, _) -> maybe. + +%% normalize_op(Instruction) -> {Normalized,FailLabel} | error +%% Normalized = {Operator,Register,Literal} | +%% {TypeTest,Register} | +%% maybe +%% Operation = '<' | '=<' | '=:=' | '=/=' | '>=' | '>' +%% TypeTest = is_atom | is_integer ... +%% Literal = {literal,Term} +%% +%% Normalize a relational operator to facilitate further +%% comparisons between operators. Always make the register +%% operand the first operand. Thus the following instruction: +%% +%% {test,is_ge,{f,99},{integer,13},{x,0}} +%% +%% will be normalized to: +%% +%% {'=<',{x,0},{literal,13}} +%% +%% NOTE: Bit syntax test instructions are scary. They may change the +%% state of match contexts and update registers, so we don't dare +%% mess with them. + +normalize_op({test,is_ge,{f,Fail},Ops}) -> + normalize_op_1('>=', Ops, Fail); +normalize_op({test,is_lt,{f,Fail},Ops}) -> + normalize_op_1('<', Ops, Fail); +normalize_op({test,is_eq_exact,{f,Fail},Ops}) -> + normalize_op_1('=:=', Ops, Fail); +normalize_op({test,is_ne_exact,{f,Fail},Ops}) -> + normalize_op_1('=/=', Ops, Fail); +normalize_op({test,is_nil,{f,Fail},[R]}) -> + normalize_op_1('=:=', [R,nil], Fail); +normalize_op({test,Op,{f,Fail},[R]}) -> + case erl_internal:new_type_test(Op, 1) of + true -> {{Op,R},Fail}; + false -> {maybe,Fail} + end; +normalize_op({test,_,{f,Fail},_}=I) -> + case beam_utils:is_pure_test(I) of + true -> {maybe,Fail}; + false -> error + end; +normalize_op(_) -> + error. + +normalize_op_1(Op, [Op1,Op2], Fail) -> + case {get_literal(Op1),get_literal(Op2)} of + {error,error} -> + %% Both operands are registers. + {maybe,Fail}; + {error,Lit} -> + {{Op,Op1,Lit},Fail}; + {Lit,error} -> + {{turn_op(Op),Op2,Lit},Fail}; + {_,_} -> + %% Both operands are literals. Can probably only + %% happen if the Core Erlang optimizations passes were + %% turned off, so don't bother trying to do something + %% smart here. + {maybe,Fail} + end. + +turn_op('<') -> '>'; +turn_op('>=') -> '=<'; +turn_op('=:='=Op) -> Op; +turn_op('=/='=Op) -> Op. + +negate_op('>=') -> '<'; +negate_op('<') -> '>='; +negate_op('=<') -> '>'; +negate_op('>') -> '=<'; +negate_op('=:=') -> '=/='; +negate_op('=/=') -> '=:='. + +get_literal({atom,Val}) -> + {literal,Val}; +get_literal({integer,Val}) -> + {literal,Val}; +get_literal({float,Val}) -> + {literal,Val}; +get_literal(nil) -> + {literal,[]}; +get_literal({literal,_}=Lit) -> + Lit; +get_literal({_,_}) -> error. diff --git a/lib/compiler/src/beam_flatten.erl b/lib/compiler/src/beam_flatten.erl index 05d067dc48..54e06df995 100644 --- a/lib/compiler/src/beam_flatten.erl +++ b/lib/compiler/src/beam_flatten.erl @@ -63,9 +63,7 @@ norm({set,[],[S,D],{set_tuple_element,I}}) -> {set_tuple_element,S,D,I}; norm({set,[D1,D2],[S],get_list}) -> {get_list,S,D1,D2}; norm({set,[D],[S|Puts],{alloc,R,{put_map,Op,F}}}) -> {put_map,F,Op,S,D,R,{list,Puts}}; -norm({set,Ds,[S|Ss],{get_map_elements,F}}) -> - Gets = beam_utils:joineven(Ss,Ds), - {get_map_elements,F,S,{list,Gets}}; +%% get_map_elements is always handled in beam_split (moved out of block) norm({set,[],[],remove_message}) -> remove_message; norm({set,[],[],fclearerror}) -> fclearerror; norm({set,[],[],fcheckerror}) -> {fcheckerror,{f,0}}. diff --git a/lib/compiler/src/beam_jump.erl b/lib/compiler/src/beam_jump.erl index b952139f2c..ba71d4efae 100644 --- a/lib/compiler/src/beam_jump.erl +++ b/lib/compiler/src/beam_jump.erl @@ -166,6 +166,12 @@ share_1([{label,L}=Lbl|Is], Dict0, Seq, Acc) -> end; share_1([{func_info,_,_,_}=I|Is], _, [], Acc) -> reverse(Is, [I|Acc]); +share_1([{'try',_,_}=I|Is], Dict0, Seq, Acc) -> + Dict = clean_non_sharable(Dict0), + share_1(Is, Dict, [I|Seq], Acc); +share_1([{try_case,_}=I|Is], Dict0, Seq, Acc) -> + Dict = clean_non_sharable(Dict0), + share_1(Is, Dict, [I|Seq], Acc); share_1([I|Is], Dict, Seq, Acc) -> case is_unreachable_after(I) of false -> @@ -174,6 +180,24 @@ share_1([I|Is], Dict, Seq, Acc) -> share_1(Is, Dict, [I], Acc) end. +clean_non_sharable(Dict) -> + %% We are passing in or out of a 'try' block. Remove + %% sequences that should not shared over the boundaries + %% of a 'try' block. Since the end of the sequence must match, + %% the only possible match between a sequence outside and + %% 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). + +sharable_with_try([{line,_}|_]) -> + %% This sequence may cause an exception and may potentially + %% match a sequence on the other side of the 'try' block + %% boundary. + false; +sharable_with_try([_|Is]) -> + sharable_with_try(Is); +sharable_with_try([]) -> true. %% Eliminate all fallthroughs. Return the result reversed. @@ -295,12 +319,6 @@ opt([{test,_,{f,_}=Lbl,_,_,_}=I|Is], Acc, St) -> opt(Is, [I|Acc], label_used(Lbl, St)); opt([{select,_,_R,Fail,Vls}=I|Is], Acc, St) -> skip_unreachable(Is, [I|Acc], label_used([Fail|Vls], St)); -opt([{label,L}=I|Is], Acc, #st{entry=L}=St) -> - %% NEVER move the entry label. - opt(Is, [I|Acc], St); -opt([{label,L1},{jump,{f,L2}}=I|Is], [Prev|Acc], St0) -> - St = St0#st{mlbl=dict:append(L2, L1, St0#st.mlbl)}, - opt([Prev,I|Is], Acc, label_used({f,L2}, St)); opt([{label,Lbl}=I|Is], Acc, #st{mlbl=Mlbl}=St0) -> case dict:find(Lbl, Mlbl) of {ok,Lbls} -> @@ -310,9 +328,20 @@ opt([{label,Lbl}=I|Is], Acc, #st{mlbl=Mlbl}=St0) -> insert_labels([Lbl|Lbls], Is, Acc, St); error -> opt(Is, [I|Acc], St0) end; -opt([{jump,{f,Lbl}},{label,Lbl}=I|Is], Acc, St) -> - opt([I|Is], Acc, St); -opt([{jump,Lbl}=I|Is], Acc, St) -> +opt([{jump,{f,_}=X}|[{label,_},{jump,X}|_]=Is], Acc, St) -> + opt(Is, Acc, St); +opt([{jump,{f,Lbl}}|[{label,Lbl}|_]=Is], Acc, St) -> + opt(Is, Acc, St); +opt([{jump,{f,L}=Lbl}=I|Is], Acc0, #st{mlbl=Mlbl0}=St0) -> + %% All labels before this jump instruction should now be + %% moved to the location of the jump's target. + {Lbls,Acc} = collect_labels(Acc0, St0), + St = case Lbls of + [] -> St0; + [_|_] -> + Mlbl = dict:append_list(L, Lbls, Mlbl0), + St0#st{mlbl=Mlbl} + end, skip_unreachable(Is, [I|Acc], label_used(Lbl, St)); %% Optimization: quickly handle some common instructions that don't %% have any failure labels and where is_unreachable_after(I) =:= false. @@ -349,6 +378,17 @@ insert_fc_labels([L|Ls], Mlbl, Acc0) -> end; insert_fc_labels([], _, Acc) -> Acc. +collect_labels(Is, #st{entry=Entry}) -> + collect_labels_1(Is, Entry, []). + +collect_labels_1([{label,Entry}|_]=Is, Entry, Acc) -> + %% Never move the entry label. + {Acc,Is}; +collect_labels_1([{label,L}|Is], Entry, Acc) -> + collect_labels_1(Is, Entry, [L|Acc]); +collect_labels_1(Is, _Entry, Acc) -> + {Acc,Is}. + %% label_defined(Is, Label) -> true | false. %% Test whether the label Label is defined at the start of the instruction %% sequence, possibly preceeded by other label definitions. @@ -435,14 +475,14 @@ is_label_used_in(Lbl, Is) -> is_label_used_in_1(Is, Lbl, gb_sets:empty()). is_label_used_in_1([{block,Block}|Is], Lbl, Empty) -> - lists:any(fun(I) -> is_label_used_in_2(I, Lbl) end, Block) + 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); is_label_used_in_1([], _, _) -> false. -is_label_used_in_2({set,_,_,Info}, Lbl) -> +is_label_used_in_block({set,_,_,Info}, Lbl) -> case Info of {bif,_,{f,F}} -> F =:= Lbl; {alloc,_,{gc_bif,_,{f,F}}} -> F =:= Lbl; @@ -452,7 +492,6 @@ is_label_used_in_2({set,_,_,Info}, Lbl) -> {put_tuple,_} -> false; {get_tuple_element,_} -> false; {set_tuple_element,_} -> false; - {get_map_elements,{f,F}} -> F =:= Lbl; {line,_} -> false; _ when is_atom(Info) -> false end. diff --git a/lib/compiler/src/beam_split.erl b/lib/compiler/src/beam_split.erl index f5dba314ae..0c62b0bf3d 100644 --- a/lib/compiler/src/beam_split.erl +++ b/lib/compiler/src/beam_split.erl @@ -53,9 +53,8 @@ split_block([{set,[D],[S|Puts],{alloc,R,{put_map,Op,{f,Lbl}=Fail}}}|Is], Bl, Acc) when Lbl =/= 0 -> split_block(Is, [], [{put_map,Fail,Op,S,D,R,{list,Puts}}| make_block(Bl, Acc)]); -split_block([{set,Ds,[S|Ss],{get_map_elements,{f,Lbl}=Fail}}|Is], Bl, Acc) - when Lbl =/= 0 -> - Gets = beam_utils:joineven(Ss,Ds), +split_block([{set,Ds,[S|Ss],{get_map_elements,Fail}}|Is], Bl, Acc) -> + Gets = beam_utils:join_even(Ss,Ds), split_block(Is, [], [{get_map_elements,Fail,S,{list,Gets}}|make_block(Bl, Acc)]); split_block([{set,[R],[],{'catch',L}}|Is], Bl, Acc) -> split_block(Is, [], [{'catch',R,L}|make_block(Bl, Acc)]); diff --git a/lib/compiler/src/beam_type.erl b/lib/compiler/src/beam_type.erl index cdddad4153..26c933481a 100644 --- a/lib/compiler/src/beam_type.erl +++ b/lib/compiler/src/beam_type.erl @@ -244,7 +244,7 @@ clearerror([], OrigIs) -> [{set,[],[],fclearerror}|OrigIs]. %% Combine two blocks and eliminate any move instructions that assign %% to registers that are killed later in the block. %% -merge_blocks(B1, [{'%live',_}|B2]) -> +merge_blocks(B1, [{'%live',_,_}|B2]) -> merge_blocks_1(B1++[{set,[],[],stop_here}|B2]). merge_blocks_1([{set,[],_,stop_here}|Is]) -> Is; @@ -329,27 +329,27 @@ build_alloc(Words, Floats) -> {alloc,[{words,Words},{floats,Floats}]}. %% flt_liveness([Instruction]) -> [Instruction] %% (Re)calculate the number of live registers for each heap allocation -%% function. We base liveness of the number of live registers at -%% entry to the instruction sequence. +%% function. We base liveness of the number of register map at the +%% beginning of the instruction sequence. %% %% A 'not_possible' term will be thrown if the set of live registers %% is not continous at an allocation function (e.g. if {x,0} and {x,2} %% are live, but not {x,1}). -flt_liveness([{'%live',Live}=LiveInstr|Is]) -> - flt_liveness_1(Is, init_regs(Live), [LiveInstr]). +flt_liveness([{'%live',_Live,Regs}=LiveInstr|Is]) -> + flt_liveness_1(Is, Regs, [LiveInstr]). -flt_liveness_1([{set,Ds,Ss,{alloc,_,Alloc}}|Is], Regs0, Acc) -> - Live = live_regs(Regs0), +flt_liveness_1([{set,Ds,Ss,{alloc,Live0,Alloc}}|Is], Regs0, Acc) -> + Live = min(Live0, live_regs(Regs0)), I = {set,Ds,Ss,{alloc,Live,Alloc}}, - Regs = foldl(fun(R, A) -> set_live(R, A) end, Regs0, Ds), + Regs1 = init_regs(Live), + Regs = x_live(Ds, Regs1), flt_liveness_1(Is, Regs, [I|Acc]); flt_liveness_1([{set,Ds,_,_}=I|Is], Regs0, Acc) -> - Regs = foldl(fun(R, A) -> set_live(R, A) end, Regs0, Ds), + Regs = x_live(Ds, Regs0), flt_liveness_1(Is, Regs, [I|Acc]); -flt_liveness_1([{'%live',_}=I|Is], Regs, Acc) -> - flt_liveness_1(Is, Regs, [I|Acc]); -flt_liveness_1([], _Regs, Acc) -> reverse(Acc). +flt_liveness_1([{'%live',_,_}], _Regs, Acc) -> + reverse(Acc). init_regs(Live) -> (1 bsl Live) - 1. @@ -364,14 +364,15 @@ live_regs_1(R, N) -> 1 -> live_regs_1(R bsr 1, N+1) end. -set_live({x,X}, Regs) -> Regs bor (1 bsl X); -set_live(_, Regs) -> Regs. +x_live([{x,N}|Rs], Regs) -> x_live(Rs, Regs bor (1 bsl N)); +x_live([_|Rs], Regs) -> x_live(Rs, Regs); +x_live([], Regs) -> Regs. %% update(Instruction, TypeDb) -> NewTypeDb %% Update the type database to account for executing an instruction. %% %% First the cases for instructions inside basic blocks. -update({'%live',_}, Ts) -> Ts; +update({'%live',_,_}, Ts) -> Ts; update({set,[D],[S],move}, Ts) -> tdb_copy(S, D, Ts); update({set,[D],[{integer,I},Reg],{bif,element,_}}, Ts0) -> @@ -469,6 +470,7 @@ is_math_bif(erf, 1) -> true; is_math_bif(erfc, 1) -> true; is_math_bif(exp, 1) -> true; is_math_bif(log, 1) -> true; +is_math_bif(log2, 1) -> true; is_math_bif(log10, 1) -> true; is_math_bif(sqrt, 1) -> true; is_math_bif(atan2, 2) -> true; diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl index e82ba82d38..7704690f86 100644 --- a/lib/compiler/src/beam_utils.erl +++ b/lib/compiler/src/beam_utils.erl @@ -26,7 +26,7 @@ code_at/2,bif_to_test/3,is_pure_test/1, live_opt/1,delete_live_annos/1,combine_heap_needs/2]). --export([joineven/2,spliteven/1]). +-export([join_even/2,split_even/1]). -import(lists, [member/2,sort/1,reverse/1,splitwith/2]). @@ -187,7 +187,7 @@ is_pure_test({test,is_lt,_,[_,_]}) -> true; is_pure_test({test,is_nil,_,[_]}) -> true; is_pure_test({test,is_nonempty_list,_,[_]}) -> true; is_pure_test({test,test_arity,_,[_,_]}) -> true; -is_pure_test({test,has_map_fields,_,[_,{list,_}]}) -> true; +is_pure_test({test,has_map_fields,_,[_|_]}) -> true; is_pure_test({test,Op,_,Ops}) -> erl_internal:new_type_test(Op, length(Ops)). @@ -196,7 +196,7 @@ is_pure_test({test,Op,_,Ops}) -> %% Go through the instruction sequence in reverse execution %% order, keep track of liveness and remove 'move' instructions %% whose destination is a register that will not be used. -%% Also insert {'%live',Live} annotations at the beginning +%% Also insert {'%live',Live,Regs} annotations at the beginning %% and end of each block. %% live_opt(Is0) -> @@ -217,7 +217,7 @@ delete_live_annos([{block,Bl0}|Is]) -> [] -> delete_live_annos(Is); [_|_]=Bl -> [{block,Bl}|delete_live_annos(Is)] end; -delete_live_annos([{'%live',_}|Is]) -> +delete_live_annos([{'%live',_,_}|Is]) -> delete_live_annos(Is); delete_live_annos([I|Is]) -> [I|delete_live_annos(Is)]; @@ -366,11 +366,6 @@ check_liveness(R, [{apply,Args}|Is], St) -> {x,_} -> {killed,St}; {y,_} -> check_liveness(R, Is, St) end; -check_liveness({x,R}, [{'%live',Live}|Is], St) -> - if - R < Live -> check_liveness(R, Is, St); - true -> {killed,St} - end; check_liveness(R, [{bif,Op,{f,Fail},Ss,D}|Is], St0) -> case check_liveness_fail(R, Op, Ss, Fail, St0) of {killed,St} = Killed -> @@ -554,7 +549,7 @@ check_killed_block(R, [{set,Ds,Ss,_Op}|Is]) -> false -> check_killed_block(R, Is) end end; -check_killed_block(R, [{'%live',Live}|Is]) -> +check_killed_block(R, [{'%live',Live,_}|Is]) -> case R of {x,X} when X >= Live -> killed; _ -> check_killed_block(R, Is) @@ -577,7 +572,7 @@ check_used_block({x,X}=R, [{set,Ds,Ss,{alloc,Live,Op}}|Is], St) -> end; check_used_block(R, [{set,Ds,Ss,Op}|Is], St) -> check_used_block_1(R, Ss, Ds, Op, Is, St); -check_used_block(R, [{'%live',Live}|Is], St) -> +check_used_block(R, [{'%live',Live,_}|Is], St) -> case R of {x,X} when X >= Live -> {killed,St}; _ -> check_used_block(R, Is, St) @@ -678,9 +673,9 @@ live_opt([{test,bs_start_match2,Fail,Live,[Src,_],_}=I|Is], _, D, Acc) -> %% Other instructions. live_opt([{block,Bl0}|Is], Regs0, D, Acc) -> - Live0 = {'%live',live_regs(Regs0)}, + Live0 = {'%live',live_regs(Regs0),Regs0}, {Bl,Regs} = live_opt_block(reverse(Bl0), Regs0, D, [Live0]), - Live = {'%live',live_regs(Regs)}, + Live = {'%live',live_regs(Regs),Regs}, live_opt(Is, Regs, D, [{block,[Live|Bl]}|Acc]); live_opt([{label,L}=I|Is], Regs, D0, Acc) -> D = gb_trees:insert(L, Regs, D0), @@ -758,13 +753,9 @@ live_opt([{line,_}=I|Is], Regs, D, Acc) -> live_opt(Is, Regs, D, [I|Acc]); %% The following instructions can occur if the "compilation" has been -%% started from a .S file using the 'asm' option. +%% started from a .S file using the 'from_asm' option. live_opt([{trim,_,_}=I|Is], Regs, D, Acc) -> live_opt(Is, Regs, D, [I|Acc]); -live_opt([{allocate,_,Live}=I|Is], _, D, Acc) -> - live_opt(Is, live_call(Live), D, [I|Acc]); -live_opt([{allocate_heap,_,_,Live}=I|Is], _, D, Acc) -> - live_opt(Is, live_call(Live), D, [I|Acc]); live_opt([{'%',_}=I|Is], Regs, D, Acc) -> live_opt(Is, Regs, D, [I|Acc]); live_opt([{recv_set,_}=I|Is], Regs, D, Acc) -> @@ -835,14 +826,14 @@ x_live([], Regs) -> Regs. is_live(X, Regs) -> ((Regs bsr X) band 1) =:= 1. -%% spliteven/1 +%% split_even/1 %% [1,2,3,4,5,6] -> {[1,3,5],[2,4,6]} -spliteven(Rs) -> spliteven(Rs,[],[]). -spliteven([],Ss,Ds) -> {reverse(Ss),reverse(Ds)}; -spliteven([S,D|Rs],Ss,Ds) -> - spliteven(Rs,[S|Ss],[D|Ds]). +split_even(Rs) -> split_even(Rs,[],[]). +split_even([],Ss,Ds) -> {reverse(Ss),reverse(Ds)}; +split_even([S,D|Rs],Ss,Ds) -> + split_even(Rs,[S|Ss],[D|Ds]). -%% joineven/1 +%% join_even/1 %% {[1,3,5],[2,4,6]} -> [1,2,3,4,5,6] -joineven([],[]) -> []; -joineven([S|Ss],[D|Ds]) -> [S,D|joineven(Ss,Ds)]. +join_even([],[]) -> []; +join_even([S|Ss],[D|Ds]) -> [S,D|join_even(Ss,Ds)]. diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl index 0acc7a227f..4d4536b79c 100644 --- a/lib/compiler/src/beam_validator.erl +++ b/lib/compiler/src/beam_validator.erl @@ -22,7 +22,6 @@ %% Avoid warning for local function error/1 clashing with autoimported BIF. -compile({no_auto_import,[error/1]}). --export([file/1, files/1]). %% Interface for compiler. -export([module/2, format_error/1]). @@ -40,38 +39,12 @@ -define(DBG_FORMAT(F, D), ok). -endif. -%%% -%%% API functions. -%%% - --spec file(file:filename()) -> 'ok' | {'error', term()}. - -file(Name) when is_list(Name) -> - case case filename:extension(Name) of - ".S" -> s_file(Name); - ".beam" -> beam_file(Name) - end of - [] -> ok; - Es -> {error,Es} - end. - --spec files([file:filename()]) -> 'ok'. - -files([F|Fs]) -> - ?DBG_FORMAT("# Verifying: ~p~n", [F]), - case file(F) of - ok -> ok; - {error,Es} -> - io:format("~tp:~n~ts~n", [F,format_error(Es)]) - end, - files(Fs); -files([]) -> ok. - %% To be called by the compiler. module({Mod,Exp,Attr,Fs,Lc}=Code, _Opts) when is_atom(Mod), is_list(Exp), is_list(Attr), is_integer(Lc) -> case validate(Mod, Fs) of - [] -> {ok,Code}; + [] -> + {ok,Code}; Es0 -> Es = [{?MODULE,E} || E <- Es0], {error,[{atom_to_list(Mod),Es}]} @@ -79,12 +52,6 @@ module({Mod,Exp,Attr,Fs,Lc}=Code, _Opts) -spec format_error(term()) -> iolist(). -format_error([]) -> []; -format_error([{{M,F,A},{I,Off,Desc}}|Es]) -> - [io_lib:format(" ~p:~p/~p+~p:~n ~p - ~p~n", - [M,F,A,Off,I,Desc])|format_error(Es)]; -format_error([Error|Es]) -> - [format_error(Error)|format_error(Es)]; format_error({{_M,F,A},{I,Off,limit}}) -> io_lib:format( "function ~p/~p+~p:~n" @@ -103,8 +70,6 @@ format_error({{_M,F,A},{I,Off,Desc}}) -> " Internal consistency check failed - please report this bug.~n" " Instruction: ~p~n" " Error: ~p:~n", [F,A,Off,I,Desc]); -format_error({Module,Error}) -> - [Module:format_error(Error)]; format_error(Error) -> io_lib:format("~p~n", [Error]). @@ -112,36 +77,6 @@ format_error(Error) -> %%% Local functions follow. %%% -s_file(Name) -> - {ok,Is} = file:consult(Name), - {module,Module} = lists:keyfind(module, 1, Is), - Fs = find_functions(Is), - validate(Module, Fs). - -find_functions(Fs) -> - find_functions_1(Fs, none, [], []). - -find_functions_1([{function,Name,Arity,Entry}|Is], Func, FuncAcc, Acc0) -> - Acc = add_func(Func, FuncAcc, Acc0), - find_functions_1(Is, {Name,Arity,Entry}, [], Acc); -find_functions_1([I|Is], Func, FuncAcc, Acc) -> - find_functions_1(Is, Func, [I|FuncAcc], Acc); -find_functions_1([], Func, FuncAcc, Acc) -> - reverse(add_func(Func, FuncAcc, Acc)). - -add_func(none, _, Acc) -> Acc; -add_func({Name,Arity,Entry}, Is, Acc) -> - [{function,Name,Arity,Entry,reverse(Is)}|Acc]. - -beam_file(Name) -> - try beam_disasm:file(Name) of - {error,beam_lib,Reason} -> [{beam_lib,Reason}]; - #beam_file{module=Module, code=Code0} -> - Code = normalize_disassembled_code(Code0), - validate(Module, Code) - catch _:_ -> [disassembly_failed] - end. - %%% %%% The validator follows. %%% @@ -196,23 +131,16 @@ validate_0(Module, [{function,Name,Ar,Entry,Code}|Fs], Ft) -> try validate_1(Code, Name, Ar, Entry, Ft) of _ -> validate_0(Module, Fs, Ft) catch - Error -> + throw:Error -> + %% Controlled error. [Error|validate_0(Module, Fs, Ft)]; - error:Error -> - [validate_error(Error, Module, Name, Ar)|validate_0(Module, Fs, Ft)] + Class:Error -> + %% Crash. + Stack = erlang:get_stacktrace(), + io:fwrite("Function: ~w/~w\n", [Name,Ar]), + erlang:raise(Class, Error, Stack) end. --ifdef(DEBUG). -validate_error(Error, Module, Name, Ar) -> - exit(validate_error_1(Error, Module, Name, Ar)). --else. -validate_error(Error, Module, Name, Ar) -> - validate_error_1(Error, Module, Name, Ar). --endif. -validate_error_1(Error, Module, Name, Ar) -> - {{Module,Name,Ar}, - {internal_error,'_',{Error,erlang:get_stacktrace()}}}. - -type index() :: non_neg_integer(). -type reg_tab() :: gb_trees:tree(index(), 'none' | {'value', _}). @@ -225,7 +153,6 @@ validate_error_1(Error, Module, Name, Ar) -> hf=0, %Available heap size for floats. fls=undefined, %Floating point state. ct=[], %List of hot catch/try labels - bsm=undefined, %Bit syntax matching state. bits=undefined, %Number of bits in bit syntax binary. setelem=false %Previous instruction was setelement/3. }). @@ -308,7 +235,7 @@ labels_1([{label,L}|Is], R) -> labels_1([{line,_}|Is], R) -> labels_1(Is, R); labels_1(Is, R) -> - {lists:reverse(R),Is}. + {reverse(R),Is}. init_state(Arity) -> Xs = init_regs(Arity, term), @@ -403,10 +330,6 @@ valfun_1({init,{y,_}=Reg}, Vst) -> set_type_y(initialized, Reg, Vst); valfun_1({test_heap,Heap,Live}, Vst) -> test_heap(Heap, Live, Vst); -valfun_1({bif,_Op,nofail,Src,Dst}, Vst) -> - %% The 'nofail' atom only occurs in disassembled code. - validate_src(Src, Vst), - set_type_reg(term, Dst, Vst); valfun_1({bif,Op,{f,_},Src,Dst}=I, Vst) -> case is_bif_safe(Op, length(Src)) of false -> @@ -432,18 +355,12 @@ valfun_1({put_tuple,Sz,Dst}, Vst0) when is_integer(Sz) -> valfun_1({put,Src}, Vst) -> assert_term(Src, Vst), eat_heap(1, Vst); -valfun_1({put_string,Sz,_,Dst}, Vst0) when is_integer(Sz) -> - Vst = eat_heap(2*Sz, Vst0), - set_type_reg(cons, Dst, Vst); %% Instructions for optimization of selective receives. valfun_1({recv_mark,{f,Fail}}, Vst) when is_integer(Fail) -> Vst; valfun_1({recv_set,{f,Fail}}, Vst) when is_integer(Fail) -> Vst; %% Misc. -valfun_1({'%live',Live}, Vst) -> - verify_live(Live, Vst), - Vst; valfun_1(remove_message, Vst) -> Vst; valfun_1({'%',_}, Vst) -> @@ -602,8 +519,6 @@ valfun_4({call_ext_last,Live,Func,StkSize}, tail_call(Func, Live, Vst); valfun_4({call_ext_last,_,_,_}, #vst{current=#st{numy=NumY}}) -> error({allocated,NumY}); -valfun_4({make_fun,_,_,Live}, Vst) -> - call('fun', Live, Vst); valfun_4({make_fun2,_,_,_,Live}, Vst) -> call(make_fun, Live, Vst); %% Other BIFs @@ -620,8 +535,6 @@ valfun_4({bif,element,{f,Fail},[Pos,Tuple],Dst}, Vst0) -> TupleType = upgrade_tuple_type({tuple,[get_tuple_size(PosType)]}, TupleType0), Vst = set_type(TupleType, Tuple, Vst1), set_type_reg(term, Dst, Vst); -valfun_4({raise,{f,_}=Fail,Src,Dst}, Vst) -> - valfun_4({bif,raise,Fail,Src,Dst}, Vst); valfun_4({bif,Op,{f,Fail},Src,Dst}, Vst0) -> validate_src(Src, Vst0), Vst = branch_state(Fail, Vst0), @@ -738,32 +651,6 @@ valfun_4({bs_save2,Ctx,SavePoint}, Vst) -> valfun_4({bs_restore2,Ctx,SavePoint}, Vst) -> bsm_restore(Ctx, SavePoint, Vst); -%% Bit syntax instructions. -valfun_4({bs_start_match,{f,_Fail}=F,Src}, Vst) -> - valfun_4({test,bs_start_match,F,[Src]}, Vst); -valfun_4({test,bs_start_match,{f,Fail},[Src]}, Vst) -> - assert_term(Src, Vst), - bs_start_match(branch_state(Fail, Vst)); - -valfun_4({bs_save,SavePoint}, Vst) -> - bs_assert_state(Vst), - bs_save(SavePoint, Vst); -valfun_4({bs_restore,SavePoint}, Vst) -> - bs_assert_state(Vst), - bs_assert_savepoint(SavePoint, Vst), - Vst; -valfun_4({test,bs_skip_bits,{f,Fail},[Src,_,_]}, Vst) -> - bs_assert_state(Vst), - assert_term(Src, Vst), - branch_state(Fail, Vst); -valfun_4({test,bs_test_tail,{f,Fail},_}, Vst) -> - bs_assert_state(Vst), - branch_state(Fail, Vst); -valfun_4({test,_,{f,Fail},[_,_,_,Dst]}, Vst0) -> - bs_assert_state(Vst0), - Vst = branch_state(Fail, Vst0), - set_type_reg({integer,[]}, Dst, Vst); - %% Other test instructions. valfun_4({test,is_float,{f,Lbl},[Float]}, Vst) -> assert_term(Float, Vst), @@ -779,9 +666,17 @@ valfun_4({test,test_arity,{f,Lbl},[Tuple,Sz]}, Vst) when is_integer(Sz) -> assert_type(tuple, Tuple, Vst), set_type_reg({tuple,Sz}, Tuple, branch_state(Lbl, Vst)); valfun_4({test,has_map_fields,{f,Lbl},Src,{list,List}}, Vst) -> - validate_src([Src], Vst), + assert_type(map, Src, Vst), assert_strict_literal_termorder(List), branch_state(Lbl, Vst); +valfun_4({test,is_map,{f,Lbl},[Src]}, Vst0) -> + Vst = branch_state(Lbl, Vst0), + case Src of + {Tag,_} when Tag =:= x; Tag =:= y -> + set_type_reg(map, Src, Vst); + _ -> + Vst + end; valfun_4({test,_Op,{f,Lbl},Src}, Vst) -> validate_src(Src, Vst), branch_state(Lbl, Vst); @@ -795,9 +690,6 @@ valfun_4({bs_utf8_size,{f,Fail},A,Dst}, Vst) -> valfun_4({bs_utf16_size,{f,Fail},A,Dst}, Vst) -> assert_term(A, Vst), set_type_reg({integer,[]}, Dst, branch_state(Fail, Vst)); -valfun_4({bs_bits_to_bytes,{f,Fail},Src,Dst}, Vst) -> - assert_term(Src, Vst), - set_type_reg({integer,[]}, Dst, branch_state(Fail, Vst)); valfun_4({bs_init2,{f,Fail},Sz,Heap,Live,_,Dst}, Vst0) -> verify_live(Live, Vst0), if @@ -868,16 +760,6 @@ valfun_4({bs_put_utf32,{f,Fail},_,Src}=I, Vst0) -> assert_term(Src, Vst0), Vst = bs_align_check(I, Vst0), branch_state(Fail, Vst); -%% Old bit syntax construction (before R10B). -valfun_4({bs_init,_,_}, Vst) -> - bs_zero_bits(Vst); -valfun_4({bs_need_buf,_}, Vst) -> Vst; -valfun_4({bs_final,{f,Fail},Dst}, Vst0) -> - Vst = branch_state(Fail, Vst0), - set_type_reg(binary, Dst, Vst); -valfun_4({bs_final2,Src,Dst}, Vst0) -> - assert_term(Src, Vst0), - set_type_reg(binary, Dst, Vst0); %% Map instructions. valfun_4({put_map_assoc,{f,Fail},Src,Dst,Live,{list,List}}, Vst) -> verify_put_map(Fail, Src, Dst, Live, List, Vst); @@ -889,26 +771,30 @@ valfun_4(_, _) -> error(unknown_instruction). verify_get_map(Fail, Src, List, Vst0) -> - assert_term(Src, Vst0), + assert_type(map, Src, Vst0), Vst1 = branch_state(Fail, Vst0), - Lits = mmap(fun(L,_R) -> [L] end, List), - assert_strict_literal_termorder(Lits), + Keys = extract_map_keys(List), + assert_strict_literal_termorder(Keys), verify_get_map_pair(List,Vst0,Vst1). +extract_map_keys([Key,_Val|T]) -> + [Key|extract_map_keys(T)]; +extract_map_keys([]) -> []. + verify_get_map_pair([],_,Vst) -> Vst; verify_get_map_pair([Src,Dst|Vs],Vst0,Vsti) -> assert_term(Src, Vst0), verify_get_map_pair(Vs,Vst0,set_type_reg(term,Dst,Vsti)). verify_put_map(Fail, Src, Dst, Live, List, Vst0) -> + assert_type(map, Src, Vst0), verify_live(Live, Vst0), verify_y_init(Vst0), foreach(fun (Term) -> assert_term(Term, Vst0) end, List), - assert_term(Src, Vst0), Vst1 = heap_alloc(0, Vst0), Vst2 = branch_state(Fail, Vst1), Vst = prune_x_regs(Live, Vst2), - set_type_reg(term, Dst, Vst). + set_type_reg(map, Dst, Vst). %% %% Common code for validating bs_get* instructions. @@ -936,9 +822,6 @@ validate_bs_skip_utf(Fail, Ctx, Live, Vst0) -> %% val_dsetel({move,_,_}, Vst) -> Vst; -val_dsetel({put_string,0,{string,""},_}, Vst) -> - %% An empty string is OK since it doesn't build anything. - Vst; val_dsetel({call_ext,3,{extfunc,erlang,setelement,3}}, #vst{current=St}=Vst) -> Vst#vst{current=St#st{setelem=true}}; val_dsetel({set_tuple_element,_,_,_}, #vst{current=#st{setelem=false}}) -> @@ -972,7 +855,7 @@ call(Name, Live, #vst{current=St}=Vst) -> Type when Type =/= exception -> %% Type is never 'exception' because it has been handled earlier. Xs = gb_trees_from_list([{0,Type}]), - Vst#vst{current=St#st{x=Xs,f=init_fregs(),bsm=undefined}} + Vst#vst{current=St#st{x=Xs,f=init_fregs()}} end. %% Tail call. @@ -1030,7 +913,7 @@ allocate(_, _, _, _, #vst{current=#st{numy=Numy}}) -> error({existing_stack_frame,{size,Numy}}). deallocate(#vst{current=St}=Vst) -> - Vst#vst{current=St#st{y=init_regs(0, initialized),numy=none,bsm=undefined}}. + Vst#vst{current=St#st{y=init_regs(0, initialized),numy=none}}. test_heap(Heap, Live, Vst0) -> verify_live(Live, Vst0), @@ -1038,7 +921,7 @@ test_heap(Heap, Live, Vst0) -> heap_alloc(Heap, Vst). heap_alloc(Heap, #vst{current=St0}=Vst) -> - St1 = kill_heap_allocation(St0#st{bsm=undefined}), + St1 = kill_heap_allocation(St0), St = heap_alloc_1(Heap, St1), Vst#vst{current=St}. @@ -1122,74 +1005,30 @@ assert_freg_set(Fr, _) -> error({bad_source,Fr}). %%% Maps -%% ensure that a list of literals has a strict -%% ascending term order (also meaning unique literals). -%% Single item lists may have registers. -assert_strict_literal_termorder([_]) -> ok; -assert_strict_literal_termorder(Ls) -> - Vs = lists:map(fun (L) -> get_literal(L) end, Ls), +%% A single item list may be either a list or a register. +%% +%% A list with more than item must contain literals in +%% ascending term order. +%% +%% An empty list is not allowed. + +assert_strict_literal_termorder([]) -> + %% There is no reason to use the get_map_elements and + %% has_map_fields instructions with empty lists. + error(empty_field_list); +assert_strict_literal_termorder([_]) -> + ok; +assert_strict_literal_termorder([_,_|_]=Ls) -> + Vs = [get_literal(L) || L <- Ls], case check_strict_value_termorder(Vs) of true -> ok; - false -> error({not_strict_order, Ls}) + false -> error(not_strict_order) end. -%% usage: -%% mmap(fun(A,B) -> [{A,B}] end, [1,2,3,4]), -%% [{1,2},{3,4}] - -mmap(F,List) -> - {arity,Ar} = erlang:fun_info(F,arity), - mmap(F,Ar,List). -mmap(_F,_,[]) -> []; -mmap(F,Ar,List) -> - {Hd,Tl} = lists:split(Ar,List), - apply(F,Hd) ++ mmap(F,Ar,Tl). - -check_strict_value_termorder([]) -> true; -check_strict_value_termorder([_]) -> true; -check_strict_value_termorder([V1,V2]) -> - erts_internal:cmp_term(V1,V2) < 0; -check_strict_value_termorder([V1,V2|Vs]) -> - case erts_internal:cmp_term(V1,V2) < 0 of - true -> check_strict_value_termorder([V2|Vs]); - false -> false - end. - -%%% -%%% Binary matching. -%%% -%%% Possible values for the bsm field (=bit syntax matching state). -%%% -%%% undefined - Undefined (initial state). No matching instructions allowed. -%%% -%%% (gb set) - The gb set contains the defined save points. -%%% -%%% The bsm field is reset to 'undefined' by instructions that may cause a -%%% a garbage collection (might move the binary) and/or context switch -%%% (may invalidate the save points). - -bs_start_match(#vst{current=#st{bsm=undefined}=St}=Vst) -> - Vst#vst{current=St#st{bsm=gb_sets:empty()}}; -bs_start_match(Vst) -> - %% Must retain save points here - it is possible to restore back - %% to a previous binary. - Vst. - -bs_save(Reg, #vst{current=#st{bsm=Saved}=St}=Vst) - when is_integer(Reg), Reg < ?MAXREG -> - Vst#vst{current=St#st{bsm=gb_sets:add(Reg, Saved)}}; -bs_save(_, _) -> error(limit). - -bs_assert_savepoint(Reg, #vst{current=#st{bsm=Saved}}) -> - case gb_sets:is_member(Reg, Saved) of - false -> error({no_save_point,Reg}); - true -> ok - end. - -bs_assert_state(#vst{current=#st{bsm=undefined}}) -> - error(no_bs_match_state); -bs_assert_state(_) -> ok. - +check_strict_value_termorder([V1|[V2|_]=Vs]) -> + erts_internal:cmp_term(V1, V2) < 0 andalso + check_strict_value_termorder(Vs); +check_strict_value_termorder([_]) -> true. %%% %%% New binary matching instructions. @@ -1389,7 +1228,8 @@ assert_term(Src, Vst) -> %% %% number Integer or Float of unknown value %% - +%% map Map. +%% assert_type(WantedType, Term, Vst) -> assert_type(WantedType, get_term_type(Term, Vst)). @@ -1471,6 +1311,7 @@ get_term_type_1(nil=T, _) -> T; get_term_type_1({atom,A}=T, _) when is_atom(A) -> T; get_term_type_1({float,F}=T, _) when is_float(F) -> T; get_term_type_1({integer,I}=T, _) when is_integer(I) -> T; +get_term_type_1({literal,Map}, _) when is_map(Map) -> map; get_term_type_1({literal,_}=T, _) -> T; get_term_type_1({x,X}=Reg, #vst{current=#st{x=Xs}}) when is_integer(X) -> case gb_trees:lookup(X, Xs) of @@ -1525,14 +1366,13 @@ merge_states(L, St, Branched) when L =/= 0 -> {value,OtherSt} -> merge_states_1(St, OtherSt) end. -merge_states_1(#st{x=Xs0,y=Ys0,numy=NumY0,h=H0,ct=Ct0,bsm=Bsm0}=St, - #st{x=Xs1,y=Ys1,numy=NumY1,h=H1,ct=Ct1,bsm=Bsm1}) -> +merge_states_1(#st{x=Xs0,y=Ys0,numy=NumY0,h=H0,ct=Ct0}=St, + #st{x=Xs1,y=Ys1,numy=NumY1,h=H1,ct=Ct1}) -> NumY = merge_stk(NumY0, NumY1), Xs = merge_regs(Xs0, Xs1), Ys = merge_y_regs(Ys0, Ys1), Ct = merge_ct(Ct0, Ct1), - Bsm = merge_bsm(Bsm0, Bsm1), - St#st{x=Xs,y=Ys,numy=NumY,h=min(H0, H1),ct=Ct,bsm=Bsm}. + St#st{x=Xs,y=Ys,numy=NumY,h=min(H0, H1),ct=Ct}. merge_stk(S, S) -> S; merge_stk(_, _) -> undecided. @@ -1615,10 +1455,6 @@ merge_types(T1, T2) when T1 =/= T2 -> %% Too different. All we know is that the type is a 'term'. term. -merge_bsm(undefined, _) -> undefined; -merge_bsm(_, undefined) -> undefined; -merge_bsm(Bsm0, Bsm1) -> gb_sets:intersection(Bsm0, Bsm1). - tuple_sz([Sz]) -> Sz; tuple_sz(Sz) -> Sz. @@ -1725,6 +1561,7 @@ bif_type(is_float, [_], _) -> bool; bif_type(is_function, [_], _) -> bool; bif_type(is_integer, [_], _) -> bool; bif_type(is_list, [_], _) -> bool; +bif_type(is_map, [_], _) -> bool; bif_type(is_number, [_], _) -> bool; bif_type(is_pid, [_], _) -> bool; bif_type(is_port, [_], _) -> bool; @@ -1754,6 +1591,7 @@ is_bif_safe(is_float, 1) -> true; is_bif_safe(is_function, 1) -> true; is_bif_safe(is_integer, 1) -> true; is_bif_safe(is_list, 1) -> true; +is_bif_safe(is_map, 1) -> true; is_bif_safe(is_number, 1) -> true; is_bif_safe(is_pid, 1) -> true; is_bif_safe(is_port, 1) -> true; @@ -1818,6 +1656,7 @@ return_type_math(erf, 1) -> {float,[]}; return_type_math(erfc, 1) -> {float,[]}; return_type_math(exp, 1) -> {float,[]}; return_type_math(log, 1) -> {float,[]}; +return_type_math(log2, 1) -> {float,[]}; return_type_math(log10, 1) -> {float,[]}; return_type_math(sqrt, 1) -> {float,[]}; return_type_math(atan2, 2) -> {float,[]}; @@ -1839,52 +1678,3 @@ error(Error) -> exit(Error). -else. error(Error) -> throw(Error). -endif. - - -%%% -%%% Rewrite disassembled code to the same format as we used internally -%%% to not have to worry later. -%%% - -normalize_disassembled_code(Fs) -> - Index = ndc_index(Fs, []), - ndc(Fs, Index, []). - -ndc_index([{function,Name,Arity,Entry,_Code}|Fs], Acc) -> - ndc_index(Fs, [{{Name,Arity},Entry}|Acc]); -ndc_index([], Acc) -> - gb_trees:from_orddict(lists:sort(Acc)). - -ndc([{function,Name,Arity,Entry,Code0}|Fs], D, Acc) -> - Code = ndc_1(Code0, D, []), - ndc(Fs, D, [{function,Name,Arity,Entry,Code}|Acc]); -ndc([], _, Acc) -> reverse(Acc). - -ndc_1([{call=Op,A,{_,F,A}}|Is], D, Acc) -> - ndc_1(Is, D, [{Op,A,{f,gb_trees:get({F,A}, D)}}|Acc]); -ndc_1([{call_only=Op,A,{_,F,A}}|Is], D, Acc) -> - ndc_1(Is, D, [{Op,A,{f,gb_trees:get({F,A}, D)}}|Acc]); -ndc_1([{call_last=Op,A,{_,F,A},Sz}|Is], D, Acc) -> - ndc_1(Is, D, [{Op,A,{f,gb_trees:get({F,A}, D)},Sz}|Acc]); -ndc_1([{arithbif,Op,F,Src,Dst}|Is], D, Acc) -> - ndc_1(Is, D, [{bif,Op,F,Src,Dst}|Acc]); -ndc_1([{arithfbif,Op,F,Src,Dst}|Is], D, Acc) -> - ndc_1(Is, D, [{bif,Op,F,Src,Dst}|Acc]); -ndc_1([{test,bs_start_match2=Op,F,[A1,Live,A3,Dst]}|Is], D, Acc) -> - ndc_1(Is, D, [{test,Op,F,Live,[A1,A3],Dst}|Acc]); -ndc_1([{test,bs_get_binary2=Op,F,[A1,Live,A3,A4,A5,Dst]}|Is], D, Acc) -> - ndc_1(Is, D, [{test,Op,F,Live,[A1,A3,A4,A5],Dst}|Acc]); -ndc_1([{test,bs_get_float2=Op,F,[A1,Live,A3,A4,A5,Dst]}|Is], D, Acc) -> - ndc_1(Is, D, [{test,Op,F,Live,[A1,A3,A4,A5],Dst}|Acc]); -ndc_1([{test,bs_get_integer2=Op,F,[A1,Live,A3,A4,A5,Dst]}|Is], D, Acc) -> - ndc_1(Is, D, [{test,Op,F,Live,[A1,A3,A4,A5],Dst}|Acc]); -ndc_1([{test,bs_get_utf8=Op,F,[A1,Live,A3,Dst]}|Is], D, Acc) -> - ndc_1(Is, D, [{test,Op,F,Live,[A1,A3],Dst}|Acc]); -ndc_1([{test,bs_get_utf16=Op,F,[A1,Live,A3,Dst]}|Is], D, Acc) -> - ndc_1(Is, D, [{test,Op,F,Live,[A1,A3],Dst}|Acc]); -ndc_1([{test,bs_get_utf32=Op,F,[A1,Live,A3,Dst]}|Is], D, Acc) -> - ndc_1(Is, D, [{test,Op,F,Live,[A1,A3],Dst}|Acc]); -ndc_1([I|Is], D, Acc) -> - ndc_1(Is, D, [I|Acc]); -ndc_1([], _, Acc) -> - reverse(Acc). diff --git a/lib/compiler/src/beam_z.erl b/lib/compiler/src/beam_z.erl index c2a6ef604e..0c7bef9183 100644 --- a/lib/compiler/src/beam_z.erl +++ b/lib/compiler/src/beam_z.erl @@ -79,17 +79,9 @@ undo_rename({put_map,Fail,assoc,S,D,R,L}) -> undo_rename({put_map,Fail,exact,S,D,R,L}) -> {put_map_exact,Fail,S,D,R,L}; undo_rename({test,has_map_fields,Fail,[Src|List]}) -> - {test,has_map_fields,Fail,Src,{list,[to_typed_literal(V)||V<-List]}}; -undo_rename({get_map_elements,Fail,Src,{list, List}}) -> - {get_map_elements,Fail,Src,{list,[to_typed_literal(V)||V<-List]}}; + {test,has_map_fields,Fail,Src,{list,List}}; +undo_rename({get_map_elements,Fail,Src,{list,List}}) -> + {get_map_elements,Fail,Src,{list,List}}; undo_rename({select,I,Reg,Fail,List}) -> {I,Reg,Fail,{list,List}}; undo_rename(I) -> I. - -%% to_typed_literal(Arg) -%% transform Arg to specific literal i.e. float | integer | atom if applicable -to_typed_literal({literal, V}) when is_float(V) -> {float, V}; -to_typed_literal({literal, V}) when is_atom(V) -> {atom, V}; -to_typed_literal({literal, V}) when is_integer(V) -> {integer, V}; -to_typed_literal({literal, []}) -> nil; -to_typed_literal(V) -> V. diff --git a/lib/compiler/src/cerl.erl b/lib/compiler/src/cerl.erl index 7a2c3d70de..3d4b9ee0c6 100644 --- a/lib/compiler/src/cerl.erl +++ b/lib/compiler/src/cerl.erl @@ -123,11 +123,14 @@ bitstr_flags/1, %% keep map exports here for now + c_map_pattern/1, + is_c_map/1, map_es/1, map_arg/1, update_c_map/3, c_map/1, is_c_map_empty/1, ann_c_map/2, ann_c_map/3, + ann_c_map_pattern/2, map_pair_op/1,map_pair_key/1,map_pair_val/1, update_c_map_pair/4, c_map_pair/2, @@ -431,6 +434,8 @@ is_literal_term([H | T]) -> is_literal_term(T) when is_tuple(T) -> is_literal_term_list(tuple_to_list(T)); is_literal_term(B) when is_bitstring(B) -> true; +is_literal_term(M) when is_map(M) -> + is_literal_term_list(maps:to_list(M)); is_literal_term(_) -> false. @@ -1577,6 +1582,20 @@ ann_make_list(_, [], Node) -> %% --------------------------------------------------------------------- %% maps +%% @spec is_c_map(Node::cerl()) -> boolean() +%% +%% @doc Returns <code>true</code> if <code>Node</code> is an abstract +%% map constructor, otherwise <code>false</code>. + +-spec is_c_map(cerl()) -> boolean(). + +is_c_map(#c_map{}) -> + true; +is_c_map(#c_literal{val = V}) when is_map(V) -> + true; +is_c_map(_) -> + false. + -spec map_es(c_map()) -> [c_map_pair()]. map_es(#c_map{es = Es}) -> @@ -1590,7 +1609,17 @@ map_arg(#c_map{arg=M}) -> -spec c_map([c_map_pair()]) -> c_map(). c_map(Pairs) -> - #c_map{es=Pairs}. + ann_c_map([], Pairs). + +-spec c_map_pattern([c_map_pair()]) -> c_map(). + +c_map_pattern(Pairs) -> + #c_map{es=Pairs, is_pat=true}. + +-spec ann_c_map_pattern([term()], [c_map_pair()]) -> c_map(). + +ann_c_map_pattern(As, Pairs) -> + #c_map{anno=As, es=Pairs, is_pat=true}. -spec is_c_map_empty(c_map() | c_literal()) -> boolean(). @@ -1598,25 +1627,13 @@ is_c_map_empty(#c_map{ es=[] }) -> true; is_c_map_empty(#c_literal{val=M}) when is_map(M),map_size(M) =:= 0 -> true; is_c_map_empty(_) -> false. --spec ann_c_map([term()], [cerl()]) -> c_map() | c_literal(). +-spec ann_c_map([term()], [c_map_pair()]) -> c_map() | c_literal(). -ann_c_map(As,Es) -> +ann_c_map(As, Es) -> ann_c_map(As, #c_literal{val=#{}}, Es). -spec ann_c_map([term()], c_map() | c_literal(), [c_map_pair()]) -> c_map() | c_literal(). -ann_c_map(As,#c_literal{val=Mval}=M,Es) when is_map(Mval), map_size(Mval) =:= 0 -> - Pairs = [[Ck,Cv]||#c_map_pair{key=Ck,val=Cv}<-Es], - IsLit = lists:foldl(fun(Pair,Res) -> - Res andalso is_lit_list(Pair) - end, true, Pairs), - Fun = fun(Pair) -> [K,V] = lit_list_vals(Pair), {K,V} end, - case IsLit of - false -> - #c_map{arg=M, es=Es, anno=As }; - true -> - #c_literal{anno=As, val=maps:from_list(lists:map(Fun, Pairs))} - end; ann_c_map(As,#c_literal{val=M},Es) when is_map(M) -> fold_map_pairs(As,Es,M); ann_c_map(As,M,Es) -> @@ -1644,14 +1661,14 @@ fold_map_pairs(As,[#c_map_pair{op=#c_literal{val=exact},key=Ck,val=Cv}=E|Es],M) end; false -> #c_map{arg=#c_literal{val=M,anno=As}, es=[E|Es], anno=As } - end; -fold_map_pairs(As,Es,M) -> - #c_map{arg=#c_literal{val=M,anno=As}, es=Es, anno=As }. + end. -%-spec update_c_map(c_map() | c_literal(), [c_map_pair()]) -> c_map() | c_literal(). +-spec update_c_map(c_map(), cerl(), [cerl()]) -> c_map() | c_literal(). -update_c_map(Old,M,Es) -> - #c_map{arg=M, es = Es, anno = get_ann(Old)}. +update_c_map(#c_map{is_pat=true}=Old, M, Es) -> + Old#c_map{arg=M, es=Es}; +update_c_map(#c_map{is_pat=false}=Old, M, Es) -> + ann_c_map(get_ann(Old), M, Es). map_pair_key(#c_map_pair{key=K}) -> K. map_pair_val(#c_map_pair{val=V}) -> V. diff --git a/lib/compiler/src/cerl_clauses.erl b/lib/compiler/src/cerl_clauses.erl index 87bd47c08b..ef74c5b76f 100644 --- a/lib/compiler/src/cerl_clauses.erl +++ b/lib/compiler/src/cerl_clauses.erl @@ -354,29 +354,29 @@ match(P, E, Bs) -> {false, Bs} end end; - map -> - %% The most we can do is to say "definitely no match" if a - %% map pattern is matched against non-map data. - case E of - any -> - {false, Bs}; - _ -> - case type(E) of - literal -> - case is_map(concrete(E)) of - false -> - none; - true -> - {false, Bs} - end; - cons -> - none; - tuple -> - none; - _ -> - {false, Bs} - end - end; + map -> + %% The most we can do is to say "definitely no match" if a + %% map pattern is matched against non-map data. + case E of + any -> + {false, Bs}; + _ -> + case type(E) of + literal -> + case is_map(concrete(E)) of + false -> + none; + true -> + {false, Bs} + end; + cons -> + none; + tuple -> + none; + _ -> + {false, Bs} + end + end; _ -> match_1(P, E, Bs) end. diff --git a/lib/compiler/src/compiler.app.src b/lib/compiler/src/compiler.app.src index 8f68915f8e..fbaa7a96fe 100644 --- a/lib/compiler/src/compiler.app.src +++ b/lib/compiler/src/compiler.app.src @@ -56,6 +56,7 @@ rec_env, sys_core_dsetel, sys_core_fold, + sys_core_fold_lists, sys_core_inline, sys_pre_attributes, sys_pre_expand, diff --git a/lib/compiler/src/core_lib.erl b/lib/compiler/src/core_lib.erl index 2792fd8fa5..66319dbd36 100644 --- a/lib/compiler/src/core_lib.erl +++ b/lib/compiler/src/core_lib.erl @@ -20,6 +20,12 @@ -module(core_lib). +-deprecated({get_anno,1,next_major_release}). +-deprecated({set_anno,2,next_major_release}). +-deprecated({is_literal,1,next_major_release}). +-deprecated({is_literal_list,1,next_major_release}). +-deprecated({literal_value,1,next_major_release}). + -export([get_anno/1,set_anno/2]). -export([is_literal/1,is_literal_list/1]). -export([literal_value/1]). @@ -33,59 +39,27 @@ %% -spec get_anno(cerl:cerl()) -> term(). -get_anno(C) -> element(2, C). +get_anno(C) -> cerl:get_ann(C). -spec set_anno(cerl:cerl(), term()) -> cerl:cerl(). -set_anno(C, A) -> setelement(2, C, A). +set_anno(C, A) -> cerl:set_ann(C, A). -spec is_literal(cerl:cerl()) -> boolean(). -is_literal(#c_literal{}) -> true; -is_literal(#c_cons{hd=H,tl=T}) -> - is_literal(H) andalso is_literal(T); -is_literal(#c_tuple{es=Es}) -> is_literal_list(Es); -is_literal(#c_binary{segments=Es}) -> is_lit_bin(Es); -is_literal(_) -> false. +is_literal(Cerl) -> + cerl:is_literal(cerl:fold_literal(Cerl)). -spec is_literal_list([cerl:cerl()]) -> boolean(). is_literal_list(Es) -> lists:all(fun is_literal/1, Es). -is_lit_bin(Es) -> - lists:all(fun (#c_bitstr{val=E,size=S}) -> - is_literal(E) andalso is_literal(S) - end, Es). - %% Return the value of LitExpr. -spec literal_value(cerl:c_literal() | cerl:c_binary() | cerl:c_map() | cerl:c_cons() | cerl:c_tuple()) -> term(). -literal_value(#c_literal{val=V}) -> V; -literal_value(#c_binary{segments=Es}) -> - list_to_binary([literal_value_bin(Bit) || Bit <- Es]); -literal_value(#c_cons{hd=H,tl=T}) -> - [literal_value(H)|literal_value(T)]; -literal_value(#c_tuple{es=Es}) -> - list_to_tuple(literal_value_list(Es)); -literal_value(#c_map{arg=Cm,es=Cmps}) -> - M = literal_value(Cm), - lists:foldl(fun(#c_map_pair{ key=Ck, val=Cv },Mi) -> - K = literal_value(Ck), - V = literal_value(Cv), - maps:put(K,V,Mi) - end, M, Cmps). - -literal_value_list(Vals) -> [literal_value(V) || V <- Vals]. - -literal_value_bin(#c_bitstr{val=Val,size=Sz,unit=U,type=T,flags=Fs}) -> - %% We will only handle literals constructed by make_literal/1. - %% Could be made more general in the future if the need arises. - 8 = literal_value(Sz), - 1 = literal_value(U), - integer = literal_value(T), - [unsigned,big] = literal_value(Fs), - literal_value(Val). +literal_value(Cerl) -> + cerl:concrete(cerl:fold_literal(Cerl)). %% Make a suitable values structure, expr or values, depending on Expr. -spec make_values([cerl:cerl()] | cerl:cerl()) -> cerl:cerl(). @@ -212,6 +186,8 @@ vu_pattern(V, #c_tuple{es=Es}, St) -> vu_pattern_list(V, Es, St); vu_pattern(V, #c_binary{segments=Ss}, St) -> vu_pat_seg_list(V, Ss, St); +vu_pattern(V, #c_map{es=Es}, St) -> + vu_map_pairs(V, Es, St); vu_pattern(V, #c_alias{var=Var,pat=P}, St0) -> case vu_pattern(V, Var, St0) of {true,_}=St1 -> St1; @@ -234,6 +210,18 @@ vu_pat_seg_list(V, Ss, St) -> end end, St, Ss). +vu_map_pairs(V, [#c_map_pair{key=Key,val=Pat}|T], St0) -> + case vu_expr(V, Key) of + true -> + {true,false}; + false -> + case vu_pattern(V, Pat, St0) of + {true,_}=St -> St; + St -> vu_map_pairs(V, T, St) + end + end; +vu_map_pairs(_, [], St) -> St. + -spec vu_var_list(cerl:var_name(), [cerl:c_var()]) -> boolean(). vu_var_list(V, Vs) -> diff --git a/lib/compiler/src/core_lint.erl b/lib/compiler/src/core_lint.erl index c0e2bdaba0..f62b2bb0ba 100644 --- a/lib/compiler/src/core_lint.erl +++ b/lib/compiler/src/core_lint.erl @@ -173,7 +173,7 @@ check_exports(Es, St) -> end. check_attrs(As, St) -> - case all(fun ({#c_literal{},V}) -> core_lib:is_literal(V); + case all(fun ({#c_literal{},#c_literal{}}) -> true; (_) -> false end, As) of true -> St; diff --git a/lib/compiler/src/core_parse.hrl b/lib/compiler/src/core_parse.hrl index 4a00535360..7fd4a82e4e 100644 --- a/lib/compiler/src/core_parse.hrl +++ b/lib/compiler/src/core_parse.hrl @@ -72,7 +72,8 @@ -record(c_map, {anno=[], arg=#c_literal{val=#{}} :: cerl:c_var() | cerl:c_literal(), - es :: [cerl:c_map_pair()]}). + es :: [cerl:c_map_pair()], + is_pat=false :: boolean()}). -record(c_map_pair, {anno=[], op :: #c_literal{val::'assoc'} | #c_literal{val::'exact'}, diff --git a/lib/compiler/src/core_parse.yrl b/lib/compiler/src/core_parse.yrl index a66ad4235f..eeb9f5dba7 100644 --- a/lib/compiler/src/core_parse.yrl +++ b/lib/compiler/src/core_parse.yrl @@ -58,7 +58,8 @@ Terminals %% Separators -'(' ')' '{' '}' '[' ']' '|' ',' '->' '=' '/' '<' '>' ':' '-|' '#' '~' '::' +'(' ')' '{' '}' '[' ']' '|' ',' '->' '=' '/' '<' '>' ':' '-|' '#' +'~' '=>' ':=' %% Keywords (atoms are assumed to always be single-quoted). @@ -123,7 +124,7 @@ function_definition -> {'$1','$3'}. anno_fun -> '(' fun_expr '-|' annotation ')' : - core_lib:set_anno('$2', '$4'). + cerl:set_ann('$2', '$4'). anno_fun -> fun_expr : '$1'. %% Constant terms for annotations and attributes. @@ -162,7 +163,7 @@ tail_constant -> ',' constant tail_constant : ['$2'|'$3']. %% ( ( V -| <anno> ) = ( {a} -| <anno> ) -| <anno> ) anno_pattern -> '(' other_pattern '-|' annotation ')' : - core_lib:set_anno('$2', '$4'). + cerl:set_ann('$2', '$4'). anno_pattern -> other_pattern : '$1'. anno_pattern -> anno_variable : '$1'. @@ -182,23 +183,24 @@ atomic_pattern -> atomic_literal : '$1'. tuple_pattern -> '{' '}' : c_tuple([]). tuple_pattern -> '{' anno_patterns '}' : c_tuple('$2'). -map_pattern -> '~' '{' '}' '~' : #c_map{es=[]}. +map_pattern -> '~' '{' '}' '~' : c_map_pattern([]). map_pattern -> '~' '{' map_pair_patterns '}' '~' : - #c_map{es=lists:sort('$3')}. + c_map_pattern(lists:sort('$3')). map_pair_patterns -> map_pair_pattern : ['$1']. map_pair_patterns -> map_pair_pattern ',' map_pair_patterns : ['$1' | '$3']. -map_pair_pattern -> '~' '<' anno_pattern ',' anno_pattern '>' : - #c_map_pair{op=#c_literal{val=exact},key='$3',val='$5'}. +map_pair_pattern -> anno_expression ':=' anno_pattern : + #c_map_pair{op=#c_literal{val=exact}, + key='$1',val='$3'}. cons_pattern -> '[' anno_pattern tail_pattern : - #c_cons{hd='$2',tl='$3'}. + c_cons('$2', '$3'). tail_pattern -> ']' : #c_literal{val=[]}. tail_pattern -> '|' anno_pattern ']' : '$2'. tail_pattern -> ',' anno_pattern tail_pattern : - #c_cons{hd='$2',tl='$3'}. + c_cons('$2', '$3'). binary_pattern -> '#' '{' '}' '#' : #c_binary{segments=[]}. binary_pattern -> '#' '{' segment_patterns '}' '#' : #c_binary{segments='$3'}. @@ -206,7 +208,7 @@ binary_pattern -> '#' '{' segment_patterns '}' '#' : #c_binary{segments='$3'}. segment_patterns -> segment_pattern ',' segment_patterns : ['$1' | '$3']. segment_patterns -> segment_pattern : ['$1']. -segment_pattern -> '#' '<' anno_pattern '>' '(' anno_patterns ')': +segment_pattern -> '#' '<' anno_pattern '>' '(' anno_expressions ')': case '$6' of [S,U,T,Fs] -> #c_bitstr{val='$3',size=S,unit=U,type=T,flags=Fs}; @@ -222,7 +224,7 @@ anno_variables -> anno_variable : ['$1']. anno_variable -> variable : '$1'. anno_variable -> '(' variable '-|' annotation ')' : - core_lib:set_anno('$2', '$4'). + cerl:set_ann('$2', '$4'). %% Expressions %% Must split expressions into two levels as nested value expressions @@ -230,7 +232,7 @@ anno_variable -> '(' variable '-|' annotation ')' : anno_expression -> expression : '$1'. anno_expression -> '(' expression '-|' annotation ')' : - core_lib:set_anno('$2', '$4'). + cerl:set_ann('$2', '$4'). anno_expressions -> anno_expression ',' anno_expressions : ['$1' | '$3']. anno_expressions -> anno_expression : ['$1']. @@ -279,15 +281,15 @@ cons_literal -> '[' literal tail_literal : c_cons('$2', '$3'). tail_literal -> ']' : #c_literal{val=[]}. tail_literal -> '|' literal ']' : '$2'. -tail_literal -> ',' literal tail_literal : #c_cons{hd='$2',tl='$3'}. +tail_literal -> ',' literal tail_literal : c_cons('$2', '$3'). tuple -> '{' '}' : c_tuple([]). tuple -> '{' anno_expressions '}' : c_tuple('$2'). -map_expr -> '~' '{' '}' '~' : #c_map{es=[]}. -map_expr -> '~' '{' map_pairs '}' '~' : #c_map{es='$3'}. -map_expr -> '~' '{' map_pairs '|' variable '}' '~' : #c_map{arg='$5',es='$3'}. -map_expr -> '~' '{' map_pairs '|' map_expr '}' '~' : #c_map{arg='$5',es='$3'}. +map_expr -> '~' '{' '}' '~' : c_map([]). +map_expr -> '~' '{' map_pairs '}' '~' : c_map('$3'). +map_expr -> '~' '{' map_pairs '|' variable '}' '~' : ann_c_map([], '$5', '$3'). +map_expr -> '~' '{' map_pairs '|' map_expr '}' '~' : ann_c_map([], '$5', '$3'). map_pairs -> map_pair : ['$1']. map_pairs -> map_pair ',' map_pairs : ['$1' | '$3']. @@ -295,10 +297,10 @@ map_pairs -> map_pair ',' map_pairs : ['$1' | '$3']. map_pair -> map_pair_assoc : '$1'. map_pair -> map_pair_exact : '$1'. -map_pair_assoc -> '::' '<' anno_expression ',' anno_expression'>' : - #c_map_pair{op=#c_literal{val=assoc},key='$3',val='$5'}. -map_pair_exact -> '~' '<' anno_expression ',' anno_expression'>' : - #c_map_pair{op=#c_literal{val=exact},key='$3',val='$5'}. +map_pair_assoc -> anno_expression '=>' anno_expression : + #c_map_pair{op=#c_literal{val=assoc},key='$1',val='$3'}. +map_pair_exact -> anno_expression ':=' anno_expression : + #c_map_pair{op=#c_literal{val=exact},key='$1',val='$3'}. cons -> '[' anno_expression tail : c_cons('$2', '$3'). @@ -307,7 +309,7 @@ tail -> '|' anno_expression ']' : '$2'. tail -> ',' anno_expression tail : c_cons('$2', '$3'). binary -> '#' '{' '}' '#' : #c_literal{val = <<>>}. -binary -> '#' '{' segments '}' '#' : #c_binary{segments='$3'}. +binary -> '#' '{' segments '}' '#' : make_binary('$3'). segments -> segment ',' segments : ['$1' | '$3']. segments -> segment : ['$1']. @@ -326,7 +328,7 @@ function_name -> atom '/' integer : anno_function_name -> function_name : '$1'. anno_function_name -> '(' function_name '-|' annotation ')' : - core_lib:set_anno('$2', '$4'). + cerl:set_ann('$2', '$4'). let_vars -> anno_variable : ['$1']. let_vars -> '<' '>' : []. @@ -354,7 +356,7 @@ anno_clauses -> anno_clause : ['$1']. anno_clause -> clause : '$1'. anno_clause -> '(' clause '-|' annotation ')' : - core_lib:set_anno('$2', '$4'). + cerl:set_ann('$2', '$4'). clause -> clause_pattern 'when' anno_expression '->' anno_expression : #c_clause{pats='$1',guard='$3',body='$5'}. @@ -410,9 +412,55 @@ Erlang code. -include("core_parse.hrl"). --import(cerl, [c_cons/2,c_tuple/1]). +-import(cerl, [ann_c_map/3,c_cons/2,c_map/1,c_map_pattern/1,c_tuple/1]). tok_val(T) -> element(3, T). tok_line(T) -> element(2, T). +%% make_binary([#c_bitstr{}]) -> #c_binary{} | #c_literal{} +%% Create either #c_binary{} or #c_literal{} from the binary segments. +%% In certain contexts, such as keys for maps, only literals and +%% variables are allowed, so we must not create a #c_binary{} +%% record in those situation. +%% +%% To keep this function simple, we use a crude heuristic. We will +%% assume that Core Erlang has been produced by core_pp. If the +%% segments *could* have been output from a literal binary by +%% core_pp, we will create a #c_literal{}. Otherwise we will create a +%% #c_binary{} record. + +make_binary(Segs) -> + try make_lit_bin(<<>>, Segs) of + Bs when is_bitstring(Bs) -> + #c_literal{val=Bs} + catch + throw:impossible -> + #c_binary{segments=Segs} + end. + +make_lit_bin(Acc, [#c_bitstr{val=I0,size=Sz0,unit=U0,type=Type0,flags=F0}|T]) -> + I = get_lit_val(I0), + Sz = get_lit_val(Sz0), + U = get_lit_val(U0), + Type = get_lit_val(Type0), + F = get_lit_val(F0), + if + is_integer(I), U =:= 1, Type =:= integer, F =:= [unsigned,big] -> + ok; + true -> + throw(impossible) + end, + if + Sz =< 8, T =:= [] -> + <<Acc/binary,I:Sz>>; + Sz =:= 8 -> + make_lit_bin(<<Acc/binary,I:8>>, T); + true -> + throw(impossible) + end; +make_lit_bin(Acc, []) -> Acc. + +get_lit_val(#c_literal{val=Val}) -> Val; +get_lit_val(_) -> throw(impossible). + %% vim: syntax=erlang diff --git a/lib/compiler/src/core_pp.erl b/lib/compiler/src/core_pp.erl index 03801a9b6d..9cfca88e8c 100644 --- a/lib/compiler/src/core_pp.erl +++ b/lib/compiler/src/core_pp.erl @@ -45,7 +45,7 @@ format(Node) -> format(Node, #ctxt{}). maybe_anno(Node, Fun, Ctxt) -> - As = core_lib:get_anno(Node), + As = cerl:get_ann(Node), case get_line(As) of none -> maybe_anno(Node, Fun, Ctxt, As); @@ -183,15 +183,9 @@ format_1(#c_map{arg=Var,es=Es}, Ctxt) -> "}~" ]; format_1(#c_map_pair{op=#c_literal{val=assoc},key=K,val=V}, Ctxt) -> - ["::<", - format_hseq([K,V], ",", add_indent(Ctxt, 1), fun format/2), - ">" - ]; + format_map_pair("=>", K, V, Ctxt); format_1(#c_map_pair{op=#c_literal{val=exact},key=K,val=V}, Ctxt) -> - ["~<", - format_hseq([K,V], ",", add_indent(Ctxt, 1), fun format/2), - ">" - ]; + format_map_pair(":=", K, V, Ctxt); format_1(#c_cons{hd=H,tl=T}, Ctxt) -> Txt = ["["|format(H, add_indent(Ctxt, 1))], [Txt|format_list_tail(T, add_indent(Ctxt, width(Txt, Ctxt)))]; @@ -201,7 +195,7 @@ format_1(#c_alias{var=V,pat=P}, Ctxt) -> Txt = [format(V, Ctxt)|" = "], [Txt|format(P, add_indent(Ctxt, width(Txt, Ctxt)))]; format_1(#c_let{vars=Vs0,arg=A,body=B}, Ctxt) -> - Vs = [core_lib:set_anno(V, []) || V <- Vs0], + Vs = [cerl:set_ann(V, []) || V <- Vs0], case is_simple_term(A) of false -> Ctxt1 = add_indent(Ctxt, Ctxt#ctxt.body_indent), @@ -219,7 +213,7 @@ format_1(#c_let{vars=Vs0,arg=A,body=B}, Ctxt) -> ["let ", format_values(Vs, add_indent(Ctxt, 4)), " = ", - format(core_lib:set_anno(A, []), Ctxt1), + format(cerl:set_ann(A, []), Ctxt1), nl_indent(Ctxt), "in " | format(B, add_indent(Ctxt, 4)) @@ -448,6 +442,12 @@ format_list_tail(#c_cons{anno=[],hd=H,tl=T}, Ctxt) -> format_list_tail(Tail, Ctxt) -> ["|",format(Tail, add_indent(Ctxt, 1)),"]"]. +format_map_pair(Op, K, V, Ctxt0) -> + Ctxt1 = add_indent(Ctxt0, 1), + Txt = format(K, set_class(Ctxt1, expr)), + Ctxt2 = add_indent(Ctxt0, width(Txt, Ctxt1)), + [Txt,Op,format(V, Ctxt2)]. + indent(Ctxt) -> indent(Ctxt#ctxt.indent, Ctxt). indent(N, _) when N =< 0 -> ""; diff --git a/lib/compiler/src/core_scan.erl b/lib/compiler/src/core_scan.erl index b7799b373a..8ab20b1982 100644 --- a/lib/compiler/src/core_scan.erl +++ b/lib/compiler/src/core_scan.erl @@ -271,8 +271,10 @@ scan1("->" ++ Cs, Toks, Pos) -> scan1(Cs, [{'->',Pos}|Toks], Pos); scan1("-|" ++ Cs, Toks, Pos) -> scan1(Cs, [{'-|',Pos}|Toks], Pos); -scan1("::" ++ Cs, Toks, Pos) -> - scan1(Cs, [{'::',Pos}|Toks], Pos); +scan1(":=" ++ Cs, Toks, Pos) -> + scan1(Cs, [{':=',Pos}|Toks], Pos); +scan1("=>" ++ Cs, Toks, Pos) -> + scan1(Cs, [{'=>',Pos}|Toks], Pos); scan1([C|Cs], Toks, Pos) -> %Punctuation character P = list_to_atom([C]), scan1(Cs, [{P,Pos}|Toks], Pos); diff --git a/lib/compiler/src/erl_bifs.erl b/lib/compiler/src/erl_bifs.erl index 6c75538194..bcc2297250 100644 --- a/lib/compiler/src/erl_bifs.erl +++ b/lib/compiler/src/erl_bifs.erl @@ -134,6 +134,7 @@ is_pure(math, erf, 1) -> true; is_pure(math, erfc, 1) -> true; is_pure(math, exp, 1) -> true; is_pure(math, log, 1) -> true; +is_pure(math, log2, 1) -> true; is_pure(math, log10, 1) -> true; is_pure(math, pow, 2) -> true; is_pure(math, sin, 1) -> true; diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl index 82817a987a..ea1959d0f8 100644 --- a/lib/compiler/src/sys_core_fold.erl +++ b/lib/compiler/src/sys_core_fold.erl @@ -96,6 +96,10 @@ t=[], %Types in_guard=false}). %In guard or not. +-type type_info() :: cerl:cerl() | 'bool'. +-type yes_no_maybe() :: 'yes' | 'no' | 'maybe'. +-type sub() :: #sub{}. + -spec module(cerl:c_module(), [compile:option()]) -> {'ok', cerl:c_module(), [_]}. @@ -313,7 +317,7 @@ expr(#c_letrec{defs=Fs0,body=B0}=Letrec, Ctxt, Sub) -> Fs1 = map(fun ({Name,Fb}) -> {Name,expr(Fb, {letrec,Ctxt}, Sub)} end, Fs0), - B1 = body(B0, value, Sub), + B1 = body(B0, Ctxt, Sub), Letrec#c_letrec{defs=Fs1,body=B1}; expr(#c_case{}=Case0, Ctxt, Sub) -> %% Ideally, the compiler should only emit warnings when there is @@ -462,10 +466,7 @@ is_safe_simple(#c_call{module=#c_literal{val=erlang}, case erl_internal:bool_op(Name, NumArgs) of true -> %% Boolean operators are safe if the arguments are boolean. - all(fun(#c_var{name=V}) -> is_boolean_type(V, Sub); - (#c_literal{val=Lit}) -> is_boolean(Lit); - (_) -> false - end, Args); + all(fun(C) -> is_boolean_type(C, Sub) =:= yes end, Args); false -> %% We need a rather complicated test to ensure that %% we only allow safe calls that are allowed in a guard. @@ -607,14 +608,6 @@ eval_binary_1([#c_bitstr{val=#c_literal{val=Val},size=#c_literal{val=Sz}, error:_ -> throw(impossible) end; -eval_binary_1([#c_bitstr{val=#c_literal{},size=#c_literal{}, - unit=#c_literal{},type=#c_literal{}, - flags=#c_cons{}=Flags}=Bitstr|Ss], Acc0) -> - case cerl:fold_literal(Flags) of - #c_literal{} = Flags1 -> - eval_binary_1([Bitstr#c_bitstr{flags=Flags1}|Ss], Acc0); - _ -> throw(impossible) - end; eval_binary_1([], Acc) -> Acc; eval_binary_1(_, _) -> throw(impossible). @@ -688,23 +681,15 @@ count_bits_1(Int, Bits) -> count_bits_1(Int bsr 64, Bits+64). %% a rewritten expression consisting of a sequence of %% the arguments only is returned. -useless_call(effect, #c_call{anno=Anno, - module=#c_literal{val=Mod}, +useless_call(effect, #c_call{module=#c_literal{val=Mod}, name=#c_literal{val=Name}, args=Args}=Call) -> A = length(Args), case erl_bifs:is_safe(Mod, Name, A) of false -> case erl_bifs:is_pure(Mod, Name, A) of - true -> - case member(result_not_wanted, Anno) of - false -> - add_warning(Call, result_ignored); - true -> - ok - end; - false -> - ok + true -> add_warning(Call, result_ignored); + false -> ok end, no; true -> @@ -730,385 +715,23 @@ make_effect_seq([], _) -> void(). call(#c_call{args=As}=Call, #c_literal{val=M}=M0, #c_literal{val=N}=N0, Sub) -> case get(no_inline_list_funcs) of true -> - call_0(Call, M0, N0, As, Sub); + call_1(Call, M0, N0, As, Sub); false -> - call_1(Call, M, N, As, Sub) + case sys_core_fold_lists:call(Call, M, N, As) of + none -> + call_1(Call, M, N, As, Sub); + Core -> + expr(Core, Sub) + end + end; call(#c_call{args=As}=Call, M, N, Sub) -> - call_0(Call, M, N, As, Sub). + call_1(Call, M, N, As, Sub). -call_0(Call, M, N, As0, Sub) -> +call_1(Call, M, N, As0, Sub) -> As1 = expr_list(As0, value, Sub), fold_call(Call#c_call{args=As1}, M, N, As1, Sub). -%% We inline some very common higher order list operations. -%% We use the same evaluation order as the library function. - -call_1(#c_call{anno=Anno}, lists, all, [Arg1,Arg2], Sub) -> - Loop = #c_var{name={'lists^all',1}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]}, - CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true}, - body=#c_apply{anno=Anno, op=Loop, args=[Xs]}}, - CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true}, - body=#c_literal{val=false}}, - CC3 = #c_clause{pats=[X], guard=#c_literal{val=true}, - body=match_fail(Anno, Err1)}, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, - body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]}, - clauses = [CC1, CC2, CC3]}}, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=1}]}, - body=#c_literal{val=true}}, - Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^all',1}}|Anno], Err2)}, - Fun = #c_fun{vars=[Xs], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, - body=#c_letrec{defs=[{Loop,Fun}], - body=#c_apply{anno=Anno, op=Loop, args=[L]}}}, - Sub); -call_1(#c_call{anno=Anno}, lists, any, [Arg1,Arg2], Sub) -> - Loop = #c_var{name={'lists^any',1}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]}, - CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true}, - body=#c_literal{val=true}}, - CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true}, - body=#c_apply{anno=Anno, op=Loop, args=[Xs]}}, - CC3 = #c_clause{pats=[X], guard=#c_literal{val=true}, - body=match_fail(Anno, Err1)}, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, - body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]}, - clauses = [CC1, CC2, CC3]}}, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=1}]}, - body=#c_literal{val=false}}, - Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^any',1}}|Anno], Err2)}, - Fun = #c_fun{vars=[Xs], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, - body=#c_letrec{defs=[{Loop,Fun}], - body=#c_apply{anno=Anno, op=Loop, args=[L]}}}, - Sub); -call_1(#c_call{anno=Anno}, lists, foreach, [Arg1,Arg2], Sub) -> - Loop = #c_var{name={'lists^foreach',1}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, - body=#c_seq{arg=#c_apply{anno=Anno, op=F, args=[X]}, - body=#c_apply{anno=Anno, op=Loop, args=[Xs]}}}, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=1}]}, - body=#c_literal{val=ok}}, - Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^foreach',1}}|Anno], Err)}, - Fun = #c_fun{vars=[Xs], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, - body=#c_letrec{defs=[{Loop,Fun}], - body=#c_apply{anno=Anno, op=Loop, args=[L]}}}, - Sub); -call_1(#c_call{anno=Anno}, lists, map, [Arg1,Arg2], Sub) -> - Loop = #c_var{name={'lists^map',1}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - H = #c_var{name='H'}, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, - body=#c_let{vars=[H], arg=#c_apply{anno=Anno, - op=F, - args=[X]}, - body=#c_cons{hd=H, - anno=[compiler_generated], - tl=#c_apply{anno=Anno, - op=Loop, - args=[Xs]}}}}, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=1}]}, - body=#c_literal{val=[]}}, - Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^map',1}}|Anno], Err)}, - Fun = #c_fun{vars=[Xs], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, - body=#c_letrec{defs=[{Loop,Fun}], - body=#c_apply{anno=Anno, op=Loop, args=[L]}}}, - Sub); -call_1(#c_call{anno=Anno}, lists, flatmap, [Arg1,Arg2], Sub) -> - Loop = #c_var{name={'lists^flatmap',1}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - H = #c_var{name='H'}, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, - body=#c_let{vars=[H], - arg=#c_apply{anno=Anno, op=F, args=[X]}, - body=#c_call{anno=[compiler_generated|Anno], - module=#c_literal{val=erlang}, - name=#c_literal{val='++'}, - args=[H, - #c_apply{anno=Anno, - op=Loop, - args=[Xs]}]}}}, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=1}]}, - body=#c_literal{val=[]}}, - Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^flatmap',1}}|Anno], Err)}, - Fun = #c_fun{vars=[Xs], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, - body=#c_letrec{defs=[{Loop,Fun}], - body=#c_apply{anno=Anno, op=Loop, args=[L]}}}, - Sub); -call_1(#c_call{anno=Anno}, lists, filter, [Arg1,Arg2], Sub) -> - Loop = #c_var{name={'lists^filter',1}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - B = #c_var{name='B'}, - Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]}, - CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true}, - body=#c_cons{anno=[compiler_generated], hd=X, tl=Xs}}, - CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true}, - body=Xs}, - CC3 = #c_clause{pats=[X], guard=#c_literal{val=true}, - body=match_fail(Anno, Err1)}, - Case = #c_case{arg=B, clauses = [CC1, CC2, CC3]}, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, - body=#c_let{vars=[B], - arg=#c_apply{anno=Anno, op=F, args=[X]}, - body=#c_let{vars=[Xs], - arg=#c_apply{anno=Anno, - op=Loop, - args=[Xs]}, - body=Case}}}, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=1}]}, - body=#c_literal{val=[]}}, - Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^filter',1}}|Anno], Err2)}, - Fun = #c_fun{vars=[Xs], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, - body=#c_letrec{defs=[{Loop,Fun}], - body=#c_apply{anno=Anno, op=Loop, args=[L]}}}, - Sub); -call_1(#c_call{anno=Anno}, lists, foldl, [Arg1,Arg2,Arg3], Sub) -> - Loop = #c_var{name={'lists^foldl',2}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - A = #c_var{name='A'}, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, - body=#c_apply{anno=Anno, - op=Loop, - args=[Xs, #c_apply{anno=Anno, - op=F, - args=[X, A]}]}}, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=2}]}, - body=A}, - Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^foldl',2}}|Anno], Err)}, - Fun = #c_fun{vars=[Xs, A], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, A, L], arg=#c_values{es=[Arg1, Arg2, Arg3]}, - body=#c_letrec{defs=[{Loop,Fun}], - body=#c_apply{anno=Anno, op=Loop, args=[L, A]}}}, - Sub); -call_1(#c_call{anno=Anno}, lists, foldr, [Arg1,Arg2,Arg3], Sub) -> - Loop = #c_var{name={'lists^foldr',2}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - A = #c_var{name='A'}, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, - body=#c_apply{anno=Anno, - op=F, - args=[X, #c_apply{anno=Anno, - op=Loop, - args=[Xs, A]}]}}, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=2}]}, - body=A}, - Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^foldr',2}}|Anno], Err)}, - Fun = #c_fun{vars=[Xs, A], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, A, L], arg=#c_values{es=[Arg1, Arg2, Arg3]}, - body=#c_letrec{defs=[{Loop,Fun}], - body=#c_apply{anno=Anno, op=Loop, args=[L, A]}}}, - Sub); -call_1(#c_call{anno=Anno}, lists, mapfoldl, [Arg1,Arg2,Arg3], Sub) -> - Loop = #c_var{name={'lists^mapfoldl',2}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - Avar = #c_var{name='A'}, - Match = - fun (A, P, E) -> - C1 = #c_clause{pats=[P], guard=#c_literal{val=true}, body=E}, - Err = #c_tuple{es=[#c_literal{val='badmatch'}, X]}, - C2 = #c_clause{pats=[X], guard=#c_literal{val=true}, - body=match_fail(Anno, Err)}, - #c_case{arg=A, clauses=[C1, C2]} - end, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, - body=Match(#c_apply{anno=Anno, op=F, args=[X, Avar]}, - #c_tuple{es=[X, Avar]}, -%%% Tuple passing version - Match(#c_apply{anno=Anno, - op=Loop, - args=[Xs, Avar]}, - #c_tuple{es=[Xs, Avar]}, - #c_tuple{anno=[compiler_generated], - es=[#c_cons{anno=[compiler_generated], - hd=X, tl=Xs}, - Avar]}) -%%% Multiple-value version -%%% #c_let{vars=[Xs,A], -%%% %% The tuple here will be optimised -%%% %% away later; no worries. -%%% arg=#c_apply{op=Loop, args=[Xs, A]}, -%%% body=#c_values{es=[#c_cons{hd=X, tl=Xs}, -%%% A]}} - )}, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=2}]}, -%%% Tuple passing version - body=#c_tuple{anno=[compiler_generated], - es=[#c_literal{val=[]}, Avar]}}, -%%% Multiple-value version -%%% body=#c_values{es=[#c_literal{val=[]}, A]}}, - Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^mapfoldl',2}}|Anno], Err)}, - Fun = #c_fun{vars=[Xs, Avar], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, Avar, L], arg=#c_values{es=[Arg1, Arg2, Arg3]}, - body=#c_letrec{defs=[{Loop,Fun}], -%%% Tuple passing version - body=#c_apply{anno=Anno, - op=Loop, - args=[L, Avar]}}}, -%%% Multiple-value version -%%% body=#c_let{vars=[Xs, A], -%%% arg=#c_apply{op=Loop, -%%% args=[L, A]}, -%%% body=#c_tuple{es=[Xs, A]}}}}, - Sub); -call_1(#c_call{anno=Anno}, lists, mapfoldr, [Arg1,Arg2,Arg3], Sub) -> - Loop = #c_var{name={'lists^mapfoldr',2}}, - F = #c_var{name='F'}, - Xs = #c_var{name='Xs'}, - X = #c_var{name='X'}, - Avar = #c_var{name='A'}, - Match = - fun (A, P, E) -> - C1 = #c_clause{pats=[P], guard=#c_literal{val=true}, body=E}, - Err = #c_tuple{es=[#c_literal{val='badmatch'}, X]}, - C2 = #c_clause{pats=[X], guard=#c_literal{val=true}, - body=match_fail(Anno, Err)}, - #c_case{arg=A, clauses=[C1, C2]} - end, - C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, -%%% Tuple passing version - body=Match(#c_apply{anno=Anno, - op=Loop, - args=[Xs, Avar]}, - #c_tuple{es=[Xs, Avar]}, - Match(#c_apply{anno=Anno, op=F, args=[X, Avar]}, - #c_tuple{es=[X, Avar]}, - #c_tuple{anno=[compiler_generated], - es=[#c_cons{anno=[compiler_generated], - hd=X, tl=Xs}, Avar]})) -%%% Multiple-value version -%%% body=#c_let{vars=[Xs,A], -%%% %% The tuple will be optimised away -%%% arg=#c_apply{op=Loop, args=[Xs, A]}, -%%% body=Match(#c_apply{op=F, args=[X, A]}, -%%% #c_tuple{es=[X, A]}, -%%% #c_values{es=[#c_cons{hd=X, tl=Xs}, -%%% A]})} - }, - C2 = #c_clause{pats=[#c_literal{val=[]}], - guard=#c_call{module=#c_literal{val=erlang}, - name=#c_literal{val=is_function}, - args=[F, #c_literal{val=2}]}, -%%% Tuple passing version - body=#c_tuple{anno=[compiler_generated], - es=[#c_literal{val=[]}, Avar]}}, -%%% Multiple-value version -%%% body=#c_values{es=[#c_literal{val=[]}, A]}}, - Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]}, - C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, - body=match_fail([{function_name,{'lists^mapfoldr',2}}|Anno], Err)}, - Fun = #c_fun{vars=[Xs, Avar], - body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, - L = #c_var{name='L'}, - expr(#c_let{vars=[F, Avar, L], arg=#c_values{es=[Arg1, Arg2, Arg3]}, - body=#c_letrec{defs=[{Loop,Fun}], -%%% Tuple passing version - body=#c_apply{anno=Anno, - op=Loop, - args=[L, Avar]}}}, -%%% Multiple-value version -%%% body=#c_let{vars=[Xs, A], -%%% arg=#c_apply{op=Loop, -%%% args=[L, A]}, -%%% body=#c_tuple{es=[Xs, A]}}}}, - Sub); -call_1(#c_call{module=M, name=N}=Call, _, _, As, Sub) -> - call_0(Call, M, N, As, Sub). - -match_fail(Anno, Arg) -> - #c_primop{anno=Anno, - name=#c_literal{val='match_fail'}, - args=[Arg]}. - %% fold_call(Call, Mod, Name, Args, Sub) -> Expr. %% Try to safely evaluate the call. Just try to evaluate arguments, %% do the call and convert return values to literals. If this @@ -1133,29 +756,33 @@ fold_call_1(Call, Mod, Name, Args, Sub) -> true -> fold_call_2(Call, Mod, Name, Args, Sub) end. -fold_call_2(Call, Module, Name, Args0, Sub) -> - try - Args = [core_lib:literal_value(A) || A <- Args0], - try apply(Module, Name, Args) of - Val -> - case cerl:is_literal_term(Val) of - true -> - #c_literal{val=Val}; - false -> - %% Successful evaluation, but it was not - %% possible to express the computed value as a literal. - Call - end - catch - error:Reason -> - %% Evaluation of the function failed. Warn and replace - %% the call with a call to erlang:error/1. - eval_failure(Call, Reason) - end +fold_call_2(Call, Module, Name, Args, Sub) -> + case all(fun cerl:is_literal/1, Args) of + true -> + %% All arguments are literals. + fold_lit_args(Call, Module, Name, Args); + false -> + %% At least one non-literal argument. + fold_non_lit_args(Call, Module, Name, Args, Sub) + end. + +fold_lit_args(Call, Module, Name, Args0) -> + Args = [cerl:concrete(A) || A <- Args0], + try apply(Module, Name, Args) of + Val -> + case cerl:is_literal_term(Val) of + true -> + cerl:abstract(Val); + false -> + %% Successful evaluation, but it was not possible + %% to express the computed value as a literal. + Call + end catch - error:_ -> - %% There was at least one non-literal argument. - fold_non_lit_args(Call, Module, Name, Args0, Sub) + error:Reason -> + %% Evaluation of the function failed. Warn and replace + %% the call with a call to erlang:error/1. + eval_failure(Call, Reason) end. %% fold_non_lit_args(Call, Module, Name, Args, Sub) -> Expr. @@ -1194,17 +821,18 @@ fold_non_lit_args(Call, _, _, _, _) -> Call. %% Evaluate a relational operation using type information. eval_rel_op(Call, Op, [#c_var{name=V},#c_var{name=V}], _) -> Bool = erlang:Op(same, same), - #c_literal{anno=core_lib:get_anno(Call),val=Bool}; -eval_rel_op(Call, '=:=', [#c_var{name=V}=Var,#c_literal{val=true}], Sub) -> + #c_literal{anno=cerl:get_ann(Call),val=Bool}; +eval_rel_op(Call, '=:=', [Term,#c_literal{val=true}], Sub) -> %% BoolVar =:= true ==> BoolVar - case is_boolean_type(V, Sub) of - true -> Var; - false -> Call + case is_boolean_type(Term, Sub) of + yes -> Term; + maybe -> Call; + no -> #c_literal{val=false} end; eval_rel_op(Call, '==', Ops, _Sub) -> case is_exact_eq_ok(Ops) of true -> - Name = #c_literal{anno=core_lib:get_anno(Call),val='=:='}, + Name = #c_literal{anno=cerl:get_ann(Call),val='=:='}, Call#c_call{name=Name}; false -> Call @@ -1212,7 +840,7 @@ eval_rel_op(Call, '==', Ops, _Sub) -> eval_rel_op(Call, '/=', Ops, _Sub) -> case is_exact_eq_ok(Ops) of true -> - Name = #c_literal{anno=core_lib:get_anno(Call),val='=/='}, + Name = #c_literal{anno=cerl:get_ann(Call),val='=/='}, Call#c_call{name=Name}; false -> Call @@ -1229,6 +857,11 @@ is_non_numeric([H|T]) -> is_non_numeric(H) andalso is_non_numeric(T); is_non_numeric(Tuple) when is_tuple(Tuple) -> is_non_numeric_tuple(Tuple, tuple_size(Tuple)); +is_non_numeric(Map) when is_map(Map) -> + %% Note that 17.x and 18.x compare keys in different ways. + %% Be very conservative -- require that both keys and values + %% are non-numeric. + is_non_numeric(maps:to_list(Map)); is_non_numeric(Num) when is_number(Num) -> false; is_non_numeric(_) -> true. @@ -1242,40 +875,31 @@ is_non_numeric_tuple(_Tuple, 0) -> true. %% there must be at least one non-literal argument (i.e. %% there is no need to handle the case that all argments %% are literal). -eval_bool_op(Call, 'and', [#c_literal{val=true},#c_var{name=V}=Res], Sub) -> - case is_boolean_type(V, Sub) of - true -> Res; - false-> Call - end; -eval_bool_op(Call, 'and', [#c_var{name=V}=Res,#c_literal{val=true}], Sub) -> - case is_boolean_type(V, Sub) of - true -> Res; - false-> Call - end; -eval_bool_op(Call, 'and', [#c_literal{val=false}=Res,#c_var{name=V}], Sub) -> - case is_boolean_type(V, Sub) of - true -> Res; - false-> Call - end; -eval_bool_op(Call, 'and', [#c_var{name=V},#c_literal{val=false}=Res], Sub) -> - case is_boolean_type(V, Sub) of - true -> Res; - false-> Call - end; + +eval_bool_op(Call, 'and', [#c_literal{val=true},Term], Sub) -> + eval_bool_op_1(Call, Term, Term, Sub); +eval_bool_op(Call, 'and', [Term,#c_literal{val=true}], Sub) -> + eval_bool_op_1(Call, Term, Term, Sub); +eval_bool_op(Call, 'and', [#c_literal{val=false}=Res,Term], Sub) -> + eval_bool_op_1(Call, Res, Term, Sub); +eval_bool_op(Call, 'and', [Term,#c_literal{val=false}=Res], Sub) -> + eval_bool_op_1(Call, Res, Term, Sub); eval_bool_op(Call, _, _, _) -> Call. +eval_bool_op_1(Call, Res, Term, Sub) -> + case is_boolean_type(Term, Sub) of + yes -> Res; + no -> eval_failure(Call, badarg); + maybe -> Call + end. + %% Evaluate is_boolean/1 using type information. -eval_is_boolean(Call, #c_var{name=V}, Sub) -> - case is_boolean_type(V, Sub) of - true -> #c_literal{val=true}; - false -> Call - end; -eval_is_boolean(_, #c_cons{}, _) -> - #c_literal{val=false}; -eval_is_boolean(_, #c_tuple{}, _) -> - #c_literal{val=false}; -eval_is_boolean(Call, _, _) -> - Call. +eval_is_boolean(Call, Term, Sub) -> + case is_boolean_type(Term, Sub) of + no -> #c_literal{val=false}; + yes -> #c_literal{val=true}; + maybe -> Call + end. %% eval_length(Call, List) -> Val. %% Evaluates the length for the prefix of List which has a known @@ -1325,33 +949,33 @@ eval_append(Call, X, Y) -> %% Evaluates element/2 if the position Pos is a literal and %% the shape of the tuple Tuple is known. %% -eval_element(Call, #c_literal{val=Pos}, #c_tuple{es=Es}, _Types) when is_integer(Pos) -> - if - 1 =< Pos, Pos =< length(Es) -> - lists:nth(Pos, Es); - true -> - eval_failure(Call, badarg) - end; -eval_element(Call, #c_literal{val=Pos}, #c_var{name=V}, Types) +eval_element(Call, #c_literal{val=Pos}, Tuple, Types) when is_integer(Pos) -> - case orddict:find(V, Types#sub.t) of - {ok,#c_tuple{es=Elements}} -> + case get_type(Tuple, Types) of + none -> + Call; + Type -> + Es = case cerl:is_c_tuple(Type) of + false -> []; + true -> cerl:tuple_es(Type) + end, if - 1 =< Pos, Pos =< length(Elements) -> - case lists:nth(Pos, Elements) of - #c_alias{var=Alias} -> Alias; - Res -> Res + 1 =< Pos, Pos =< length(Es) -> + El = lists:nth(Pos, Es), + try + pat_to_expr(El) + catch + throw:impossible -> + Call end; true -> + %% Index outside tuple or not a tuple. eval_failure(Call, badarg) - end; - {ok,_} -> - eval_failure(Call, badarg); - error -> - Call + end end; -eval_element(Call, Pos, Tuple, _Types) -> - case is_not_integer(Pos) orelse is_not_tuple(Tuple) of +eval_element(Call, Pos, Tuple, Sub) -> + case is_int_type(Pos, Sub) =:= no orelse + is_tuple_type(Tuple, Sub) =:= no of true -> eval_failure(Call, badarg); false -> @@ -1361,34 +985,27 @@ eval_element(Call, Pos, Tuple, _Types) -> %% eval_is_record(Call, Var, Tag, Size, Types) -> Val. %% Evaluates is_record/3 using type information. %% -eval_is_record(Call, #c_var{name=V}, #c_literal{val=NeededTag}=Lit, +eval_is_record(Call, Term, #c_literal{val=NeededTag}, #c_literal{val=Size}, Types) -> - case orddict:find(V, Types#sub.t) of - {ok,#c_tuple{es=[#c_literal{val=Tag}|_]=Es}} -> - Lit#c_literal{val=Tag =:= NeededTag andalso - length(Es) =:= Size}; - _ -> - Call + case get_type(Term, Types) of + none -> + Call; + Type -> + Es = case cerl:is_c_tuple(Type) of + false -> []; + true -> cerl:tuple_es(Type) + end, + case Es of + [#c_literal{val=Tag}|_] -> + Bool = Tag =:= NeededTag andalso + length(Es) =:= Size, + #c_literal{val=Bool}; + _ -> + #c_literal{val=false} + end end; eval_is_record(Call, _, _, _, _) -> Call. -%% is_not_integer(Core) -> true | false. -%% Returns true if Core is definitely not an integer. - -is_not_integer(#c_literal{val=Val}) when not is_integer(Val) -> true; -is_not_integer(#c_tuple{}) -> true; -is_not_integer(#c_cons{}) -> true; -is_not_integer(#c_map{}) -> true; -is_not_integer(_) -> false. - -%% is_not_tuple(Core) -> true | false. -%% Returns true if Core is definitely not a tuple. - -is_not_tuple(#c_literal{val=Val}) when not is_tuple(Val) -> true; -is_not_tuple(#c_cons{}) -> true; -is_not_tuple(#c_map{}) -> true; -is_not_tuple(_) -> false. - %% eval_setelement(Call, Pos, Tuple, NewVal) -> Core. %% Evaluates setelement/3 if position Pos is an integer %% the shape of the tuple Tuple is known. @@ -1492,7 +1109,7 @@ clause(#c_clause{pats=Ps0,guard=G0,body=B0}=Cl, Cexpr, Ctxt, Sub0) -> let_substs(Vs0, As0, Sub0) -> {Vs1,Sub1} = pattern_list(Vs0, Sub0), {Vs2,As1,Ss} = let_substs_1(Vs1, As0, Sub1), - Sub2 = scope_add([V || #c_var{name=V} <- Vs2], 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)}. @@ -1527,7 +1144,7 @@ pattern(#c_var{}=Pat, Isub, Osub) -> true -> V1 = make_var_name(), Pat1 = #c_var{name=V1}, - {Pat1,sub_set_var(Pat, Pat1, scope_add([V1], Osub))}; + {Pat1,sub_set_var(Pat, Pat1, sub_add_scope([V1], Osub))}; false -> {Pat,sub_del_var(Pat, Osub)} end; @@ -1597,6 +1214,7 @@ is_subst(_) -> false. %% sub_del_var(Var, #sub{}) -> #sub{}. %% sub_subst_var(Var, Value, #sub{}) -> [{Name,Value}]. %% sub_is_val(Var, #sub{}) -> boolean(). +%% sub_add_scope(#sub{}) -> #sub{} %% sub_subst_scope(#sub{}) -> #sub{} %% %% We use the variable name as key so as not have problems with @@ -1607,9 +1225,10 @@ is_subst(_) -> false. %% In addition to the list of substitutions, we also keep track of %% all variable currently live (the scope). %% -%% sub_subst_scope/1 adds dummy substitutions for all variables -%% in the scope in order to force renaming if variables in the -%% scope occurs as pattern variables. +%% sub_add_scope/2 adds variables to the scope. sub_subst_scope/1 +%% adds dummy substitutions for all variables in the scope in order +%% to force renaming if variables in the scope occurs as pattern +%% variables. sub_new() -> #sub{v=orddict:new(),s=gb_trees:empty(),t=[]}. @@ -1649,6 +1268,12 @@ sub_subst_var(#c_var{name=V}, Val, #sub{v=S0}) -> %% Fold chained substitutions. [{V,Val}] ++ [ {K,Val} || {K,#c_var{name=V1}} <- S0, V1 =:= V]. +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) + 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, Sub#sub{v=S}. @@ -1696,7 +1321,7 @@ clauses(E, [C0|Cs], Ctxt, Sub, LitExpr) -> {yes,yes} -> case LitExpr of false -> - Line = get_line(core_lib:get_anno(C1)), + Line = get_line(cerl:get_ann(C1)), shadow_warning(Cs, Line); true -> %% If the case expression is a literal, @@ -1930,7 +1555,7 @@ opt_bool_case_guard(#c_case{arg=Arg,clauses=Cs0}=Case) -> Case; true -> Cs = opt_bool_case_guard(Arg, Cs0), - Case#c_case{arg=#c_values{anno=core_lib:get_anno(Arg),es=[]}, + Case#c_case{arg=#c_values{anno=cerl:get_ann(Arg),es=[]}, clauses=Cs} end. @@ -1978,6 +1603,7 @@ eval_case(#c_case{arg=E,clauses=[#c_clause{pats=Ps0, %% is correct, the clause will always match at run-time. Case; {true,Bs} -> + eval_case_warn(B), {Ps,As} = unzip(Bs), InnerLet = cerl:c_let(Ps, core_lib:make_values(As), B), Let = cerl:c_let(Vs, E, InnerLet), @@ -1985,6 +1611,19 @@ eval_case(#c_case{arg=E,clauses=[#c_clause{pats=Ps0, end; eval_case(Case, _) -> Case. +eval_case_warn(#c_primop{anno=Anno, + name=#c_literal{val=match_fail}, + args=[#c_literal{val=Reason}]}=Core) + when is_atom(Reason) -> + case member(eval_failure, Anno) of + false -> + ok; + true -> + %% Example: M = not_map, M#{k:=v} + add_warning(Core, {eval_failure,Reason}) + end; +eval_case_warn(_) -> ok. + %% case_opt(CaseArg, [Clause]) -> {CaseArg,[Clause]}. %% Try and optimise a case by avoid building tuples or lists %% in the case expression. Instead combine the variable parts @@ -2041,182 +1680,259 @@ case_opt_args([], Cs, _Sub, _LitExpr, Acc) -> %% or to remove a literal argument. %% case_opt_arg(E0, Sub, Cs, LitExpr) -> - E = maybe_replace_var(E0, Sub), - case cerl:is_data(E) of + case cerl:is_c_var(E0) of false -> - {error,Cs}; + case_opt_arg_1(E0, Cs, LitExpr); true -> + case case_will_var_match(Cs) of + true -> + %% All clauses will match a variable in the + %% current position. Don't expand this variable + %% (that can only make the code worse). + {error,Cs}; + false -> + %% If possible, expand this variable to a previously + %% matched term. + E = case_expand_var(E0, Sub), + case_opt_arg_1(E, Cs, LitExpr) + end + end. + +case_opt_arg_1(E0, Cs0, LitExpr) -> + case cerl:is_data(E0) of + false -> + {error,Cs0}; + true -> + E = case_opt_compiler_generated(E0), + Cs = case_opt_nomatch(E, Cs0, LitExpr), case cerl:data_type(E) of {atomic,_} -> - case_opt_lit(E, Cs, LitExpr); + case_opt_lit(E, Cs); _ -> - case_opt_data(E, Cs, LitExpr) + case_opt_data(E, Cs) end end. -%% maybe_replace_var(Expr0, Sub) -> Expr +%% case_will_var_match([Clause]) -> true | false. +%% Return if all clauses will match a variable in the +%% current position. +%% +case_will_var_match(Cs) -> + all(fun({[P|_],_,_,_}) -> + case cerl_clauses:match(P, any) of + {true,_} -> true; + _ -> false + end + end, Cs). + + +%% case_opt_compiler_generated(Core) -> Core' +%% Mark Core expressions as compiler generated to ensure that +%% no warnings are generated if they turn out to be unused. +%% To pretty-printed Core Erlang easier to read, don't mark +%% constructs that can't cause warnings to be emitted. +%% +case_opt_compiler_generated(Core) -> + F = fun(C) -> + case cerl:type(C) of + alias -> C; + var -> C; + _ -> cerl:set_ann(C, [compiler_generated]) + end + end, + cerl_trees:map(F, Core). + + +%% case_expand_var(Expr0, Sub) -> Expr %% If Expr0 is a variable that has been previously matched and %% is known to be a tuple, return the tuple instead. Otherwise %% return Expr0 unchanged. %% -maybe_replace_var(E, Sub) -> - case cerl:is_c_var(E) of - false -> E; - true -> maybe_replace_var_1(E, Sub) - end. - -maybe_replace_var_1(E, #sub{t=Tdb}) -> +case_expand_var(E, #sub{t=Tdb}) -> case orddict:find(cerl:var_name(E), Tdb) of {ok,T0} -> case cerl:is_c_tuple(T0) of false -> E; true -> - cerl_trees:map(fun(C) -> - case cerl:is_c_alias(C) of - false -> C; - true -> cerl:alias_pat(C) - end - end, T0) + %% The pattern was a tuple. Now we must make sure + %% that the elements of the tuple are suitable. In + %% particular, we don't want binary or map + %% construction here, since that means that the + %% binary or map will be constructed in the 'case' + %% argument. That is wasteful for binaries. Even + %% worse is that any map pattern that use the ':=' + %% operator will fail when used in map + %% construction (only the '=>' operator is allowed + %% when constructing a map from scratch). + try + cerl_trees:map(fun coerce_to_data/1, T0) + catch + throw:impossible -> + %% Something unsuitable was found (map or + %% or binary). Keep the variable. + E + end end; error -> E end. -%% case_opt_lit(Literal, Clauses0, LitExpr) -> -%% {ok,[],Clauses} | error -%% The current part of the case expression is a literal. That -%% means that we will know at compile-time whether a clause -%% will match, and we can remove the corresponding pattern from -%% each clause. -%% -%% The only complication is if the literal is a binary. Binary -%% pattern matching is tricky, so we will give up in that case. +%% coerce_to_data(Core) -> Core' +%% Coerce an element originally from a pattern to an data item or or +%% variable. Throw an 'impossible' exception if non-data Core Erlang +%% terms such as binary construction or map construction are +%% encountered. -case_opt_lit(Lit, Cs0, LitExpr) -> - Cs1 = case_opt_lit_1(Lit, Cs0, LitExpr), - try case_opt_lit_2(Lit, Cs1) of - Cs -> - {ok,[],Cs} - catch - throw:impossible -> - {error,Cs1} +coerce_to_data(C) -> + case cerl:is_c_alias(C) of + false -> + case cerl:is_data(C) orelse cerl:is_c_var(C) of + true -> C; + false -> throw(impossible) + end; + true -> + coerce_to_data(cerl:alias_pat(C)) end. -case_opt_lit_1(E, [{[P|_],C,_,_}=Current|Cs], LitExpr) -> +%% case_opt_nomatch(E, Clauses, LitExpr) -> Clauses' +%% Remove all clauses that cannot possibly match. + +case_opt_nomatch(E, [{[P|_],C,_,_}=Current|Cs], LitExpr) -> case cerl_clauses:match(P, E) of none -> - %% The pattern will not match the literal. Remove the clause. - %% Unless the entire case expression is a literal, also - %% emit a warning. + %% The pattern will not match the case expression. Remove + %% the clause. Unless the entire case expression is a + %% literal, also emit a warning. case LitExpr of false -> add_warning(C, nomatch_clause_type); true -> ok end, - case_opt_lit_1(E, Cs, LitExpr); + case_opt_nomatch(E, Cs, LitExpr); _ -> - [Current|case_opt_lit_1(E, Cs, LitExpr)] + [Current|case_opt_nomatch(E, Cs, LitExpr)] end; -case_opt_lit_1(_, [], _) -> []. +case_opt_nomatch(_, [], _) -> []. + +%% case_opt_lit(Literal, Clauses0) -> {ok,[],Clauses} | error +%% The current part of the case expression is a literal. That +%% means that we will know at compile-time whether a clause +%% will match, and we can remove the corresponding pattern from +%% each clause. +%% +%% The only complication is if the literal is a binary or map. +%% In general, it is difficult to know whether a binary or +%% map pattern will match, so we give up in that case. + +case_opt_lit(Lit, Cs0) -> + try case_opt_lit_1(Lit, Cs0) of + Cs -> + {ok,[],Cs} + catch + throw:impossible -> + {error,Cs0} + end. -case_opt_lit_2(E, [{[P|Ps],C,PsAcc,Bs0}|Cs]) -> - %% Non-matching clauses have already been removed in case_opt_lit_1/3. +case_opt_lit_1(E, [{[P|Ps],C,PsAcc,Bs0}|Cs]) -> + %% Non-matching clauses have already been removed + %% in case_opt_nomatch/3. case cerl_clauses:match(P, E) of {true,Bs} -> %% The pattern matches the literal. Remove the pattern %% and update the bindings. - [{Ps,C,PsAcc,Bs++Bs0}|case_opt_lit_2(E, Cs)]; + [{Ps,C,PsAcc,Bs++Bs0}|case_opt_lit_1(E, Cs)]; {false,_} -> %% Binary literal and pattern. We are not sure whether %% the pattern will match. throw(impossible) end; -case_opt_lit_2(_, []) -> []. +case_opt_lit_1(_, []) -> []. %% case_opt_data(Expr, Clauses0, LitExpr) -> {ok,Exprs,Clauses} +%% The case expression is a non-atomic data constructor (cons +%% or tuple). We can know at compile time whether each clause +%% will match, and we can delay the building of the data to +%% the clauses where it is actually needed. -case_opt_data(E, Cs0, LitExpr) -> +case_opt_data(E, Cs0) -> Es = cerl:data_es(E), - Cs = case_opt_data_1(Cs0, Es, - {cerl:data_type(E),cerl:data_arity(E)}, - LitExpr), - {ok,Es,Cs}. - -case_opt_data_1([{[P|Ps0],C,PsAcc,Bs0}|Cs], Es, TypeSig, LitExpr) -> - case case_data_pat(P, TypeSig) of - {ok,Ps1,Bs1} -> - [{Ps1++Ps0,C,PsAcc,Bs1++Bs0}| - case_opt_data_1(Cs, Es, TypeSig,LitExpr)]; - error -> - case LitExpr of - false -> add_warning(C, nomatch_clause_type); - true -> ok - end, - case_opt_data_1(Cs, Es, TypeSig, LitExpr) - end; -case_opt_data_1([], _, _, _) -> []. - -%% case_data_pat(Pattern, Type, Arity) -> {ok,[Pattern],[{AliasVar,Pat}]} | error. - -case_data_pat(P, TypeSig) -> - case cerl:is_data(P) of - false -> - case_data_pat_var(P, TypeSig); - true -> - case {cerl:data_type(P),cerl:data_arity(P)} of - TypeSig -> - {ok,cerl:data_es(P),[]}; - {_,_} -> - error - end + TypeSig = {cerl:data_type(E),cerl:data_arity(E)}, + try case_opt_data_1(Cs0, Es, TypeSig) of + Cs -> + {ok,Es,Cs} + catch + throw:impossible -> + %% The pattern contained a binary or map. + {error,Cs0} end. -%% case_data_pat_var(Pattern, {DataType,ArityType}) -> -%% {ok,[Pattern],[{AliasVar,Pat}]} +case_opt_data_1([{[P0|Ps0],C,PsAcc,Bs0}|Cs], Es, TypeSig) -> + P = case_opt_compiler_generated(P0), + BindTo = #c_var{name=dummy}, + {Ps1,[{BindTo,_}|Bs1]} = case_data_pat_alias(P, BindTo, TypeSig, []), + [{Ps1++Ps0,C,PsAcc,Bs1++Bs0}|case_opt_data_1(Cs, Es, TypeSig)]; +case_opt_data_1([], _, _) -> []. -case_data_pat_var(P, {Type,Arity}=TypeSig) -> - %% If the entire case statement is evaluated in an effect - %% context (e.g. "case {A,B} of ... end, ok"), there will - %% be a warning that a term is constructed but never used. - %% To avoid that warning, we must annotate the data - %% constructor as compiler generated. - Ann = [compiler_generated|cerl:get_ann(P)], +case_data_pat_alias(P, BindTo0, TypeSig, Bs0) -> case cerl:type(P) of - var -> - Vars = make_vars(cerl:get_ann(P), Arity), - {ok,Vars,[{P,cerl:ann_make_data(Ann, Type, Vars)}]}; alias -> - V = cerl:alias_var(P), - Apat = cerl:alias_pat(P), - case case_data_pat(Apat, TypeSig) of - {ok,Ps,Bs} -> - {ok,Ps,[{V,cerl:ann_make_data(Ann, Type, unalias_pat_list(Ps))}|Bs]}; - error -> - error - end; + %% Recursively handle the pattern and bind to + %% the alias variable. + BindTo = cerl:alias_var(P), + Apat0 = cerl:alias_pat(P), + Ann = [compiler_generated], + Apat = cerl:set_ann(Apat0, Ann), + {Ps,Bs} = case_data_pat_alias(Apat, BindTo, TypeSig, Bs0), + {Ps,[{BindTo0,BindTo}|Bs]}; + var -> + %% Here we will need to actually build the data and bind + %% it to the variable. + {Type,Arity} = TypeSig, + Vars = make_vars([], Arity), + Ann = [compiler_generated], + Data = cerl:ann_make_data(Ann, Type, Vars), + Bs = [{BindTo0,P},{P,Data}|Bs0], + {Vars,Bs}; _ -> - error + %% Since case_opt_nomatch/3 has removed all clauses that + %% cannot match, we KNOW that this clause must match and + %% that the pattern must be a data constructor. + %% Here we must build the data and bind it to the variable. + {Type,_} = TypeSig, + DataEs = cerl:data_es(P), + Vars = pat_to_expr_list(DataEs), + Ann = [compiler_generated], + Data = cerl:ann_make_data(Ann, Type, Vars), + {DataEs,[{BindTo0,Data}]} end. -%% unalias_pat(Pattern) -> Pattern. -%% Remove all the aliases in a pattern but using the alias variables -%% instead of the values. We KNOW they will be bound. +%% pat_to_expr(Pattern) -> Expression. +%% Convert a pattern to an expression if possible. We KNOW that +%% all variables in the pattern will be bound. +%% +%% Throw an 'impossible' exception if a map or (non-literal) +%% binary is encountered. Trying to use a map pattern as an +%% expression is incorrect, while rebuilding a potentially +%% huge binary in an expression would be wasteful. -unalias_pat(P) -> - case cerl:is_c_alias(P) of - true -> +pat_to_expr(P) -> + case cerl:type(P) of + alias -> cerl:alias_var(P); - false -> + var -> + P; + _ -> case cerl:is_data(P) of false -> - P; + %% Map or binary. + throw(impossible); true -> - Es = unalias_pat_list(cerl:data_es(P)), + Es = pat_to_expr_list(cerl:data_es(P)), cerl:update_data(P, cerl:data_type(P), Es) end end. -unalias_pat_list(Ps) -> [unalias_pat(P) || P <- Ps]. +pat_to_expr_list(Ps) -> [pat_to_expr(P) || P <- Ps]. make_vars(A, Max) -> make_vars(A, 1, Max). @@ -2234,18 +1950,11 @@ make_var_name() -> list_to_atom("fol"++integer_to_list(N)). letify(Bs, Body) -> + Ann = cerl:get_ann(Body), foldr(fun({V,Val}, B) -> - letify(V, Val, B) + cerl:ann_c_let(Ann, [V], Val, B) end, Body, Bs). -letify(#c_var{name=Vname}=Var, Val, Body) -> - case core_lib:is_var_used(Vname, Body) of - true -> - A = element(2, Body), - #c_let{anno=A,vars=[Var],arg=Val,body=Body}; - false -> Body - end. - %% opt_case_in_let(LetExpr) -> LetExpr' opt_case_in_let(#c_let{vars=Vs,arg=Arg,body=B}=Let, Sub) -> @@ -2334,11 +2043,8 @@ is_bool_expr(#c_let{vars=[V],arg=Arg,body=B}, Sub0) -> is_bool_expr(#c_let{body=B}, Sub) -> %% Binding of multiple variables. is_bool_expr(B, Sub); -is_bool_expr(#c_literal{val=Bool}, _) when is_boolean(Bool) -> - true; -is_bool_expr(#c_var{name=V}, Sub) -> - is_boolean_type(V, Sub); -is_bool_expr(_, _) -> false. +is_bool_expr(C, Sub) -> + is_boolean_type(C, Sub) =:= yes. is_bool_expr_list([C|Cs], Sub) -> is_bool_expr(C, Sub) andalso is_bool_expr_list(Cs, Sub); @@ -2552,12 +2258,6 @@ move_let_into_expr(_Let, _Expr, _Sub) -> impossible. is_failing_clause(#c_clause{body=B}) -> will_fail(B). -scope_add(Vs, #sub{s=Scope0}=Sub) -> - Scope = foldl(fun(V, S) when is_integer(V); is_atom(V) -> - gb_sets:add(V, S) - end, Scope0, Vs), - Sub#sub{s=Scope}. - %% opt_simple_let(#c_let{}, Context, Sub) -> CoreTerm %% Optimize a let construct that does not contain any lets in %% in its argument. @@ -2586,31 +2286,7 @@ opt_simple_let_1(#c_let{vars=Vs0,body=B0}=Let, Arg0, Ctxt, Sub0) -> Arg = core_lib:make_values(Args), opt_simple_let_2(Let, Vs, Arg, B, Ctxt, Sub1). -opt_simple_let_2(Let0, Vs0, Arg0, Body0, effect, Sub) -> - case {Vs0,Arg0,Body0} of - {[],#c_values{es=[]},Body} -> - %% No variables left (because of substitutions). - Body; - {[_|_],Arg,#c_literal{}} -> - %% The body is a literal. That means that we can ignore - %% it and that the return value is Arg revisited in - %% effect context. - body(Arg, effect, sub_new_preserve_types(Sub)); - {Vs,Arg,Body} -> - %% Since we are in effect context, there is a chance - %% that the body no longer references the variables. - %% In that case we can construct a sequence and visit - %% that in effect context: - %% let <Var> = Arg in BodyWithoutVar ==> seq Arg BodyWithoutVar - case is_any_var_used(Vs, Body) of - false -> - expr(#c_seq{arg=Arg,body=Body}, effect, sub_new_preserve_types(Sub)); - true -> - Let = Let0#c_let{vars=Vs,arg=Arg,body=Body}, - opt_case_in_let_arg(opt_case_in_let(Let, Sub), effect, Sub) - end - end; -opt_simple_let_2(Let, Vs0, Arg0, Body, value, Sub) -> +opt_simple_let_2(Let0, Vs0, Arg0, Body, Ctxt, Sub) -> case {Vs0,Arg0,Body} of {[#c_var{name=N1}],Arg,#c_var{name=N2}} -> case N1 =:= N2 of @@ -2619,19 +2295,38 @@ opt_simple_let_2(Let, Vs0, Arg0, Body, value, Sub) -> Arg; false -> %% let <Var> = Arg in <OtherVar> ==> seq Arg OtherVar - expr(#c_seq{arg=Arg,body=Body}, value, sub_new_preserve_types(Sub)) + expr(#c_seq{arg=Arg,body=Body}, Ctxt, + sub_new_preserve_types(Sub)) end; {[],#c_values{es=[]},_} -> %% No variables left. Body; {_,Arg,#c_literal{}} -> - %% The variable is not used in the body. The argument - %% can be evaluated in effect context to simplify it. - expr(#c_seq{arg=Arg,body=Body}, value, sub_new_preserve_types(Sub)); + E = case Ctxt of + effect -> + %% Throw away the literal body. + Arg; + value -> + %% Since the variable is not used in the body, we + %% can rewrite the let to a sequence. + %% let <Var> = Arg in Literal ==> seq Arg Literal + #c_seq{arg=Arg,body=Body} + end, + expr(E, Ctxt, sub_new_preserve_types(Sub)); {Vs,Arg,Body} -> - opt_case_in_let_arg( - opt_case_in_let(Let#c_let{vars=Vs,arg=Arg,body=Body}, Sub), - value, Sub) + %% If none of the variables are used in the body, we can + %% rewrite the let to a sequence: + %% let <Var> = Arg in BodyWithoutVar ==> + %% seq Arg BodyWithoutVar + case is_any_var_used(Vs, Body) of + false -> + expr(#c_seq{arg=Arg,body=Body}, Ctxt, + sub_new_preserve_types(Sub)); + true -> + Let1 = Let0#c_let{vars=Vs,arg=Arg,body=Body}, + Let2 = opt_case_in_let(Let1, Sub), + opt_case_in_let_arg(Let2, Ctxt, Sub) + end end. move_case_into_arg(#c_case{arg=#c_let{vars=OuterVars0,arg=OuterArg, @@ -2754,12 +2449,61 @@ is_any_var_used([#c_var{name=V}|Vs], Expr) -> end; is_any_var_used([], _) -> false. -is_boolean_type(V, #sub{t=Tdb}) -> +%%% +%%% Retrieving information about types. +%%% + +-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,bool} -> true; - _ -> false + {ok,Type} -> Type; + error -> none + end; +get_type(C, _) -> + case cerl:type(C) of + binary -> C; + map -> C; + _ -> + case cerl:is_data(C) of + true -> C; + false -> none + end end. +-spec is_boolean_type(cerl:cerl(), sub()) -> yes_no_maybe(). + +is_boolean_type(Var, Sub) -> + case get_type(Var, Sub) of + none -> + maybe; + bool -> + yes; + C -> + B = cerl:is_c_atom(C) andalso + is_boolean(cerl:atom_val(C)), + yes_no(B) + end. + +-spec is_int_type(cerl:cerl(), sub()) -> yes_no_maybe(). + +is_int_type(Var, Sub) -> + case get_type(Var, Sub) of + none -> maybe; + C -> yes_no(cerl:is_c_int(C)) + end. + +-spec is_tuple_type(cerl:cerl(), sub()) -> yes_no_maybe(). + +is_tuple_type(Var, Sub) -> + case get_type(Var, Sub) of + none -> maybe; + C -> yes_no(cerl:is_c_tuple(C)) + end. + +yes_no(true) -> yes; +yes_no(false) -> no. + %% update_types(Expr, Pattern, Sub) -> Sub' %% Update the type database. update_types(Expr, Pat, #sub{t=Tdb0}=Sub) -> @@ -3081,11 +2825,11 @@ add_bin_opt_info(Core, Term) -> end. add_warning(Core, Term) -> - case is_compiler_generated(Core) of + case suppress_warning(Core) of true -> ok; false -> - Anno = core_lib:get_anno(Core), + Anno = cerl:get_ann(Core), Line = get_line(Anno), File = get_file(Anno), Key = {?MODULE,warnings}, @@ -3106,9 +2850,17 @@ get_file([{file,File}|_]) -> File; get_file([_|T]) -> get_file(T); get_file([]) -> "no_file". % should not happen +suppress_warning(Core) -> + is_compiler_generated(Core) orelse + is_result_unwanted(Core). + is_compiler_generated(Core) -> - Anno = core_lib:get_anno(Core), - member(compiler_generated, Anno). + Ann = cerl:get_ann(Core), + member(compiler_generated, Ann). + +is_result_unwanted(Core) -> + Ann = cerl:get_ann(Core), + member(result_not_wanted, Ann). get_warnings() -> ordsets:from_list((erase({?MODULE,warnings}))). diff --git a/lib/compiler/src/sys_core_fold_lists.erl b/lib/compiler/src/sys_core_fold_lists.erl new file mode 100644 index 0000000000..49dc59052a --- /dev/null +++ b/lib/compiler/src/sys_core_fold_lists.erl @@ -0,0 +1,386 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 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% +%% +%% Purpose : Inline high order lists functions from the lists module. + +-module(sys_core_fold_lists). + +-export([call/4]). + +-include("core_parse.hrl"). + +%% We inline some very common higher order list operations. +%% We use the same evaluation order as the library function. + +-spec call(cerl:c_call(), atom(), atom(), [cerl:cerl()]) -> + 'none' | cerl:cerl(). + +call(#c_call{anno=Anno}, lists, all, [Arg1,Arg2]) -> + Loop = #c_var{name={'lists^all',1}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]}, + CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true}, + body=#c_apply{anno=Anno, op=Loop, args=[Xs]}}, + CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true}, + body=#c_literal{val=false}}, + CC3 = #c_clause{pats=[X], guard=#c_literal{val=true}, + body=match_fail(Anno, Err1)}, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, + body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]}, + clauses = [CC1, CC2, CC3]}}, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=1}]}, + body=#c_literal{val=true}}, + Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^all',1}}|Anno], Err2)}, + Fun = #c_fun{vars=[Xs], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, + body=#c_letrec{defs=[{Loop,Fun}], + body=#c_apply{anno=Anno, op=Loop, args=[L]}}}; +call(#c_call{anno=Anno}, lists, any, [Arg1,Arg2]) -> + Loop = #c_var{name={'lists^any',1}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]}, + CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true}, + body=#c_literal{val=true}}, + CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true}, + body=#c_apply{anno=Anno, op=Loop, args=[Xs]}}, + CC3 = #c_clause{pats=[X], guard=#c_literal{val=true}, + body=match_fail(Anno, Err1)}, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, + body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]}, + clauses = [CC1, CC2, CC3]}}, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=1}]}, + body=#c_literal{val=false}}, + Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^any',1}}|Anno], Err2)}, + Fun = #c_fun{vars=[Xs], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, + body=#c_letrec{defs=[{Loop,Fun}], + body=#c_apply{anno=Anno, op=Loop, args=[L]}}}; +call(#c_call{anno=Anno}, lists, foreach, [Arg1,Arg2]) -> + Loop = #c_var{name={'lists^foreach',1}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, + body=#c_seq{arg=#c_apply{anno=Anno, op=F, args=[X]}, + body=#c_apply{anno=Anno, op=Loop, args=[Xs]}}}, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=1}]}, + body=#c_literal{val=ok}}, + Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^foreach',1}}|Anno], Err)}, + Fun = #c_fun{vars=[Xs], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, + body=#c_letrec{defs=[{Loop,Fun}], + body=#c_apply{anno=Anno, op=Loop, args=[L]}}}; +call(#c_call{anno=Anno}, lists, map, [Arg1,Arg2]) -> + Loop = #c_var{name={'lists^map',1}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + H = #c_var{name='H'}, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, + body=#c_let{vars=[H], arg=#c_apply{anno=Anno, + op=F, + args=[X]}, + body=#c_cons{hd=H, + anno=[compiler_generated], + tl=#c_apply{anno=Anno, + op=Loop, + args=[Xs]}}}}, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=1}]}, + body=#c_literal{val=[]}}, + Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^map',1}}|Anno], Err)}, + Fun = #c_fun{vars=[Xs], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, + body=#c_letrec{defs=[{Loop,Fun}], + body=#c_apply{anno=Anno, op=Loop, args=[L]}}}; +call(#c_call{anno=Anno}, lists, flatmap, [Arg1,Arg2]) -> + Loop = #c_var{name={'lists^flatmap',1}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + H = #c_var{name='H'}, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, + body=#c_let{vars=[H], + arg=#c_apply{anno=Anno, op=F, args=[X]}, + body=#c_call{anno=[compiler_generated|Anno], + module=#c_literal{val=erlang}, + name=#c_literal{val='++'}, + args=[H, + #c_apply{anno=Anno, + op=Loop, + args=[Xs]}]}}}, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=1}]}, + body=#c_literal{val=[]}}, + Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^flatmap',1}}|Anno], Err)}, + Fun = #c_fun{vars=[Xs], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, + body=#c_letrec{defs=[{Loop,Fun}], + body=#c_apply{anno=Anno, op=Loop, args=[L]}}}; +call(#c_call{anno=Anno}, lists, filter, [Arg1,Arg2]) -> + Loop = #c_var{name={'lists^filter',1}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + B = #c_var{name='B'}, + Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]}, + CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true}, + body=#c_cons{anno=[compiler_generated], hd=X, tl=Xs}}, + CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true}, + body=Xs}, + CC3 = #c_clause{pats=[X], guard=#c_literal{val=true}, + body=match_fail(Anno, Err1)}, + Case = #c_case{arg=B, clauses = [CC1, CC2, CC3]}, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, + body=#c_let{vars=[B], + arg=#c_apply{anno=Anno, op=F, args=[X]}, + body=#c_let{vars=[Xs], + arg=#c_apply{anno=Anno, + op=Loop, + args=[Xs]}, + body=Case}}}, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=1}]}, + body=#c_literal{val=[]}}, + Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^filter',1}}|Anno], Err2)}, + Fun = #c_fun{vars=[Xs], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, L], arg=#c_values{es=[Arg1, Arg2]}, + body=#c_letrec{defs=[{Loop,Fun}], + body=#c_apply{anno=Anno, op=Loop, args=[L]}}}; +call(#c_call{anno=Anno}, lists, foldl, [Arg1,Arg2,Arg3]) -> + Loop = #c_var{name={'lists^foldl',2}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + A = #c_var{name='A'}, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, + body=#c_apply{anno=Anno, + op=Loop, + args=[Xs, #c_apply{anno=Anno, + op=F, + args=[X, A]}]}}, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=2}]}, + body=A}, + Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^foldl',2}}|Anno], Err)}, + Fun = #c_fun{vars=[Xs, A], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, A, L], arg=#c_values{es=[Arg1, Arg2, Arg3]}, + body=#c_letrec{defs=[{Loop,Fun}], + body=#c_apply{anno=Anno, op=Loop, args=[L, A]}}}; +call(#c_call{anno=Anno}, lists, foldr, [Arg1,Arg2,Arg3]) -> + Loop = #c_var{name={'lists^foldr',2}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + A = #c_var{name='A'}, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, + body=#c_apply{anno=Anno, + op=F, + args=[X, #c_apply{anno=Anno, + op=Loop, + args=[Xs, A]}]}}, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=2}]}, + body=A}, + Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^foldr',2}}|Anno], Err)}, + Fun = #c_fun{vars=[Xs, A], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, A, L], arg=#c_values{es=[Arg1, Arg2, Arg3]}, + body=#c_letrec{defs=[{Loop,Fun}], + body=#c_apply{anno=Anno, op=Loop, args=[L, A]}}}; +call(#c_call{anno=Anno}, lists, mapfoldl, [Arg1,Arg2,Arg3]) -> + Loop = #c_var{name={'lists^mapfoldl',2}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + Avar = #c_var{name='A'}, + Match = + fun (A, P, E) -> + C1 = #c_clause{pats=[P], guard=#c_literal{val=true}, body=E}, + Err = #c_tuple{es=[#c_literal{val='badmatch'}, X]}, + C2 = #c_clause{pats=[X], guard=#c_literal{val=true}, + body=match_fail(Anno, Err)}, + #c_case{arg=A, clauses=[C1, C2]} + end, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, + body=Match(#c_apply{anno=Anno, op=F, args=[X, Avar]}, + #c_tuple{es=[X, Avar]}, +%%% Tuple passing version + Match(#c_apply{anno=Anno, + op=Loop, + args=[Xs, Avar]}, + #c_tuple{es=[Xs, Avar]}, + #c_tuple{anno=[compiler_generated], + es=[#c_cons{anno=[compiler_generated], + hd=X, tl=Xs}, + Avar]}) +%%% Multiple-value version +%%% #c_let{vars=[Xs,A], +%%% %% The tuple here will be optimised +%%% %% away later; no worries. +%%% arg=#c_apply{op=Loop, args=[Xs, A]}, +%%% body=#c_values{es=[#c_cons{hd=X, tl=Xs}, +%%% A]}} + )}, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=2}]}, +%%% Tuple passing version + body=#c_tuple{anno=[compiler_generated], + es=[#c_literal{val=[]}, Avar]}}, +%%% Multiple-value version +%%% body=#c_values{es=[#c_literal{val=[]}, A]}}, + Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^mapfoldl',2}}|Anno], Err)}, + Fun = #c_fun{vars=[Xs, Avar], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, Avar, L], arg=#c_values{es=[Arg1, Arg2, Arg3]}, + body=#c_letrec{defs=[{Loop,Fun}], +%%% Tuple passing version + body=#c_apply{anno=Anno, + op=Loop, + args=[L, Avar]}}}; +%%% Multiple-value version +%%% body=#c_let{vars=[Xs, A], +%%% arg=#c_apply{op=Loop, +%%% args=[L, A]}, +%%% body=#c_tuple{es=[Xs, A]}}}}; +call(#c_call{anno=Anno}, lists, mapfoldr, [Arg1,Arg2,Arg3]) -> + Loop = #c_var{name={'lists^mapfoldr',2}}, + F = #c_var{name='F'}, + Xs = #c_var{name='Xs'}, + X = #c_var{name='X'}, + Avar = #c_var{name='A'}, + Match = + fun (A, P, E) -> + C1 = #c_clause{pats=[P], guard=#c_literal{val=true}, body=E}, + Err = #c_tuple{es=[#c_literal{val='badmatch'}, X]}, + C2 = #c_clause{pats=[X], guard=#c_literal{val=true}, + body=match_fail(Anno, Err)}, + #c_case{arg=A, clauses=[C1, C2]} + end, + C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true}, +%%% Tuple passing version + body=Match(#c_apply{anno=Anno, + op=Loop, + args=[Xs, Avar]}, + #c_tuple{es=[Xs, Avar]}, + Match(#c_apply{anno=Anno, op=F, args=[X, Avar]}, + #c_tuple{es=[X, Avar]}, + #c_tuple{anno=[compiler_generated], + es=[#c_cons{anno=[compiler_generated], + hd=X, tl=Xs}, Avar]})) +%%% Multiple-value version +%%% body=#c_let{vars=[Xs,A], +%%% %% The tuple will be optimised away +%%% arg=#c_apply{op=Loop, args=[Xs, A]}, +%%% body=Match(#c_apply{op=F, args=[X, A]}, +%%% #c_tuple{es=[X, A]}, +%%% #c_values{es=[#c_cons{hd=X, tl=Xs}, +%%% A]})} + }, + C2 = #c_clause{pats=[#c_literal{val=[]}], + guard=#c_call{module=#c_literal{val=erlang}, + name=#c_literal{val=is_function}, + args=[F, #c_literal{val=2}]}, +%%% Tuple passing version + body=#c_tuple{anno=[compiler_generated], + es=[#c_literal{val=[]}, Avar]}}, +%%% Multiple-value version +%%% body=#c_values{es=[#c_literal{val=[]}, A]}}, + Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]}, + C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true}, + body=match_fail([{function_name,{'lists^mapfoldr',2}}|Anno], Err)}, + Fun = #c_fun{vars=[Xs, Avar], + body=#c_case{arg=Xs, clauses=[C1, C2, C3]}}, + L = #c_var{name='L'}, + #c_let{vars=[F, Avar, L], arg=#c_values{es=[Arg1, Arg2, Arg3]}, + body=#c_letrec{defs=[{Loop,Fun}], +%%% Tuple passing version + body=#c_apply{anno=Anno, + op=Loop, + args=[L, Avar]}}}; +%%% Multiple-value version +%%% body=#c_let{vars=[Xs, A], +%%% arg=#c_apply{op=Loop, +%%% args=[L, A]}, +%%% body=#c_tuple{es=[Xs, A]}}}}; +call(_, _, _, _) -> + none. + +match_fail(Ann, Arg) -> + Name = cerl:abstract(match_fail), + Args = [Arg], + cerl:ann_c_primop(Ann, Name, Args). diff --git a/lib/compiler/src/sys_core_inline.erl b/lib/compiler/src/sys_core_inline.erl index 9f93acb666..1e3a735e9b 100644 --- a/lib/compiler/src/sys_core_inline.erl +++ b/lib/compiler/src/sys_core_inline.erl @@ -195,10 +195,10 @@ kill_id_anns(Body) -> A = kill_id_anns_1(A0), CFun#c_fun{anno=A}; (Expr) -> - %% Mark everything as compiler generated to suppress - %% bogus warnings. - A = compiler_generated(core_lib:get_anno(Expr)), - core_lib:set_anno(Expr, A) + %% Mark everything as compiler generated to + %% suppress bogus warnings. + A = compiler_generated(cerl:get_ann(Expr)), + cerl:set_ann(Expr, A) end, Body). kill_id_anns_1([{'id',_}|As]) -> diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl index 8c1a0c08ac..cbe50b93b0 100644 --- a/lib/compiler/src/v3_codegen.erl +++ b/lib/compiler/src/v3_codegen.erl @@ -1523,9 +1523,11 @@ set_cg([{var,R}], {map,Op,Map,[{map_pair,{var,_}=K,V}]}, Le, Vdb, Bef, List = [cg_reg_arg(K,Int0),cg_reg_arg(V,Int0)], Live = max_reg(Bef#sr.reg), - Int1 = Int0#sr{reg=put_reg(R, Int0#sr.reg)}, - Aft = clear_dead(Int1, Le#l.i, Vdb), - Target = fetch_reg(R, Int1#sr.reg), + + %% The target register can reuse one of the source registers. + Aft0 = clear_dead(Int0, Le#l.i, Vdb), + Aft = Aft0#sr{reg=put_reg(R, Aft0#sr.reg)}, + Target = fetch_reg(R, Aft#sr.reg), I = case Op of assoc -> put_map_assoc; @@ -1557,9 +1559,11 @@ set_cg([{var,R}], {map,Op,Map,Es}, Le, Vdb, Bef, List = flatmap(fun({K,V}) -> [K,cg_reg_arg(V,Int0)] end, Pairs), Live = max_reg(Bef#sr.reg), - Int1 = Int0#sr{reg=put_reg(R, Int0#sr.reg)}, - Aft = clear_dead(Int1, Le#l.i, Vdb), - Target = fetch_reg(R, Int1#sr.reg), + + %% The target register can reuse one of the source registers. + Aft0 = clear_dead(Int0, Le#l.i, Vdb), + Aft = Aft0#sr{reg=put_reg(R, Aft0#sr.reg)}, + Target = fetch_reg(R, Aft#sr.reg), I = case Op of assoc -> put_map_assoc; diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl index 612660c2d6..3c19a209c0 100644 --- a/lib/compiler/src/v3_core.erl +++ b/lib/compiler/src/v3_core.erl @@ -66,6 +66,7 @@ %% match arguments are novars %% case arguments are novars %% receive timeouts are novars +%% binaries and maps are novars %% let/set arguments are expressions %% fun is not a safe @@ -105,7 +106,9 @@ -record(iset, {anno=#a{},var,arg}). -record(itry, {anno=#a{},args,vars,body,evars,handler}). -record(ifilter, {anno=#a{},arg}). --record(igen, {anno=#a{},acc_pat,acc_guard,skip_pat,tail,tail_pat,arg}). +-record(igen, {anno=#a{},ceps=[],acc_pat,acc_guard, + skip_pat,tail,tail_pat,arg}). +-record(isimple, {anno=#a{},term :: cerl:cerl()}). -type iapply() :: #iapply{}. -type ibinary() :: #ibinary{}. @@ -124,11 +127,12 @@ -type itry() :: #itry{}. -type ifilter() :: #ifilter{}. -type igen() :: #igen{}. +-type isimple() :: #isimple{}. -type i() :: iapply() | ibinary() | icall() | icase() | icatch() | iclause() | ifun() | iletrec() | imatch() | iprimop() | iprotect() | ireceive1() | ireceive2() | iset() | itry() - | ifilter() | igen(). + | ifilter() | igen() | isimple(). -type warning() :: {file:filename(), [{integer(), module(), term()}]}. @@ -287,13 +291,15 @@ gexpr({protect,Line,Arg}, Bools0, St0) -> {#iprotect{anno=#a{anno=Anno},body=Eps++[E]},[],Bools0,St} end; gexpr({op,L,'andalso',E1,E2}, Bools, St0) -> - {#c_var{name=V0},St} = new_var(L, St0), + Anno = lineno_anno(L, St0), + {#c_var{name=V0},St} = new_var(Anno, St0), V = {var,L,V0}, False = {atom,L,false}, E = make_bool_switch_guard(L, E1, V, E2, False), gexpr(E, Bools, St); gexpr({op,L,'orelse',E1,E2}, Bools, St0) -> - {#c_var{name=V0},St} = new_var(L, St0), + Anno = lineno_anno(L, St0), + {#c_var{name=V0},St} = new_var(Anno, St0), V = {var,L,V0}, True = {atom,L,true}, E = make_bool_switch_guard(L, E1, V, True, E2), @@ -382,33 +388,30 @@ gexpr_test(E0, Bools0, St0) -> Lanno = Anno#a.anno, {New,St2} = new_var(Lanno, St1), Bools = [New|Bools0], - {#icall{anno=Anno, %Must have an #a{} - module=#c_literal{anno=Lanno,val=erlang}, - name=#c_literal{anno=Lanno,val='=:='}, - args=[New,#c_literal{anno=Lanno,val=true}]}, + {icall_eq_true(New), Eps0 ++ [#iset{anno=Anno,var=New,arg=E1}],Bools,St2} end; _ -> - Anno = get_ianno(E1), Lanno = get_lineno_anno(E1), + ACompGen = #a{anno=[compiler_generated]}, case is_simple(E1) of true -> Bools = [E1|Bools0], - {#icall{anno=Anno, %Must have an #a{} - module=#c_literal{anno=Lanno,val=erlang}, - name=#c_literal{anno=Lanno,val='=:='}, - args=[E1,#c_literal{anno=Lanno,val=true}]},Eps0,Bools,St1}; + {icall_eq_true(E1),Eps0,Bools,St1}; false -> {New,St2} = new_var(Lanno, St1), Bools = [New|Bools0], - {#icall{anno=Anno, %Must have an #a{} - module=#c_literal{anno=Lanno,val=erlang}, - name=#c_literal{anno=Lanno,val='=:='}, - args=[New,#c_literal{anno=Lanno,val=true}]}, - Eps0 ++ [#iset{anno=Anno,var=New,arg=E1}],Bools,St2} + {icall_eq_true(New), + Eps0 ++ [#iset{anno=ACompGen,var=New,arg=E1}],Bools,St2} end end. +icall_eq_true(Arg) -> + #icall{anno=#a{anno=[compiler_generated]}, + module=#c_literal{val=erlang}, + name=#c_literal{val='=:='}, + args=[Arg,#c_literal{val=true}]}. + force_booleans(Vs0, E, Eps, St) -> Vs1 = [set_anno(V, []) || V <- Vs0], Vs = unforce(E, Eps, Vs1), @@ -418,16 +421,15 @@ force_booleans_1([], E, Eps, St) -> {E,Eps,St}; force_booleans_1([V|Vs], E0, Eps0, St0) -> {E1,Eps1,St1} = force_safe(E0, St0), - Lanno = element(2, V), - Anno = #a{anno=Lanno}, - Call = #icall{anno=Anno,module=#c_literal{anno=Lanno,val=erlang}, - name=#c_literal{anno=Lanno,val=is_boolean}, + ACompGen = #a{anno=[compiler_generated]}, + Call = #icall{anno=ACompGen,module=#c_literal{val=erlang}, + name=#c_literal{val=is_boolean}, args=[V]}, - {New,St} = new_var(Lanno, St1), - Iset = #iset{anno=Anno,var=New,arg=Call}, + {New,St} = new_var([], St1), + Iset = #iset{var=New,arg=Call}, Eps = Eps0 ++ Eps1 ++ [Iset], - E = #icall{anno=Anno, - module=#c_literal{anno=Lanno,val=erlang},name=#c_literal{anno=Lanno,val='and'}, + E = #icall{anno=ACompGen, + module=#c_literal{val=erlang},name=#c_literal{val='and'}, args=[E1,New]}, force_booleans_1(Vs, E, Eps, St). @@ -514,28 +516,28 @@ exprs([], St) -> {[],St}. %% Generate an internal core expression. expr({var,L,V}, St) -> {#c_var{anno=lineno_anno(L, St),name=V},[],St}; -expr({char,L,C}, St) -> {#c_literal{anno=lineno_anno(L, St),val=C},[],St}; -expr({integer,L,I}, St) -> {#c_literal{anno=lineno_anno(L, St),val=I},[],St}; -expr({float,L,F}, St) -> {#c_literal{anno=lineno_anno(L, St),val=F},[],St}; -expr({atom,L,A}, St) -> {#c_literal{anno=lineno_anno(L, St),val=A},[],St}; -expr({nil,L}, St) -> {#c_literal{anno=lineno_anno(L, St),val=[]},[],St}; -expr({string,L,S}, St) -> {#c_literal{anno=lineno_anno(L, St),val=S},[],St}; +expr({char,L,C}, St) -> {#c_literal{anno=full_anno(L, St),val=C},[],St}; +expr({integer,L,I}, St) -> {#c_literal{anno=full_anno(L, St),val=I},[],St}; +expr({float,L,F}, St) -> {#c_literal{anno=full_anno(L, St),val=F},[],St}; +expr({atom,L,A}, St) -> {#c_literal{anno=full_anno(L, St),val=A},[],St}; +expr({nil,L}, St) -> {#c_literal{anno=full_anno(L, St),val=[]},[],St}; +expr({string,L,S}, St) -> {#c_literal{anno=full_anno(L, St),val=S},[],St}; expr({cons,L,H0,T0}, St0) -> {H1,Hps,St1} = safe(H0, St0), {T1,Tps,St2} = safe(T0, St1), - A = lineno_anno(L, St2), + A = full_anno(L, St2), {annotate_cons(A, H1, T1, St2),Hps ++ Tps,St2}; expr({lc,L,E,Qs0}, St0) -> {Qs1,St1} = preprocess_quals(L, Qs0, St0), lc_tq(L, E, Qs1, #c_literal{anno=lineno_anno(L, St1),val=[]}, St1); expr({bc,L,E,Qs}, St) -> - bc_tq(L, E, Qs, {nil,L}, St); + bc_tq(L, E, Qs, St); expr({tuple,L,Es0}, St0) -> {Es1,Eps,St1} = safe_list(Es0, St0), A = record_anno(L, St1), {annotate_tuple(A, Es1, St1),Eps,St1}; expr({map,L,Es0}, St0) -> - map_build_pair_chain(#c_literal{val=#{}},Es0,lineno_anno(L,St0),St0); + map_build_pairs(#c_literal{val=#{}}, Es0, full_anno(L, St0), St0); expr({map,L,M0,Es0}, St0) -> try expr_map(M0,Es0,lineno_anno(L, St0),St0) of {_,_,_}=Res -> Res @@ -550,7 +552,7 @@ expr({map,L,M0,Es0}, St0) -> args=As},[],St} end; expr({bin,L,Es0}, St0) -> - try expr_bin(Es0, lineno_anno(L, St0), St0) of + try expr_bin(Es0, full_anno(L, St0), St0) of {_,_,_}=Res -> Res catch throw:bad_binary -> @@ -640,11 +642,11 @@ expr({'catch',L,E0}, St0) -> Lanno = lineno_anno(L, St1), {#icatch{anno=#a{anno=Lanno},body=Eps ++ [E1]},[],St1}; expr({'fun',L,{function,F,A},{_,_,_}=Id}, St) -> - Lanno = lineno_anno(L, St), + Lanno = full_anno(L, St), {#c_var{anno=Lanno++[{id,Id}],name={F,A}},[],St}; expr({'fun',L,{function,M,F,A}}, St0) -> {As,Aps,St1} = safe_list([M,F,A], St0), - Lanno = lineno_anno(L, St1), + Lanno = full_anno(L, St1), {#icall{anno=#a{anno=Lanno}, module=#c_literal{val=erlang}, name=#c_literal{val=make_fun}, @@ -655,13 +657,9 @@ expr({named_fun,L,'_',Cs,Id}, St) -> fun_tq(Id, Cs, L, St, unnamed); expr({named_fun,L,Name,Cs,Id}, St) -> fun_tq(Id, Cs, L, St, {named,Name}); -expr({call,L,{remote,_,M,F},As0}, #core{wanted=Wanted}=St0) -> +expr({call,L,{remote,_,M,F},As0}, St0) -> {[M1,F1|As1],Aps,St1} = safe_list([M,F|As0], St0), - Lanno = lineno_anno(L, St1), - Anno = case Wanted of - false -> [result_not_wanted|Lanno]; - true -> Lanno - end, + Anno = full_anno(L, St1), {#icall{anno=#a{anno=Anno},module=M1,name=F1,args=As1},Aps,St1}; expr({call,Lc,{atom,Lf,F},As0}, St0) -> {As1,Aps,St1} = safe_list(As0, St0), @@ -710,26 +708,28 @@ expr({op,_,'++',{lc,Llc,E,Qs0},More}, St0) -> {Y,Yps,St} = lc_tq(Llc, E, Qs, Mc, St2), {Y,Mps++Yps,St}; expr({op,L,'andalso',E1,E2}, St0) -> - {#c_var{name=V0},St} = new_var(L, St0), + Anno = lineno_anno(L, St0), + {#c_var{name=V0},St} = new_var(Anno, St0), V = {var,L,V0}, False = {atom,L,false}, E = make_bool_switch(L, E1, V, E2, False, St0), expr(E, St); expr({op,L,'orelse',E1,E2}, St0) -> - {#c_var{name=V0},St} = new_var(L, St0), + Anno = lineno_anno(L, St0), + {#c_var{name=V0},St} = new_var(Anno, St0), V = {var,L,V0}, True = {atom,L,true}, E = make_bool_switch(L, E1, V, True, E2, St0), expr(E, St); expr({op,L,Op,A0}, St0) -> {A1,Aps,St1} = safe(A0, St0), - LineAnno = lineno_anno(L, St1), + LineAnno = full_anno(L, St1), {#icall{anno=#a{anno=LineAnno}, %Must have an #a{} module=#c_literal{anno=LineAnno,val=erlang}, name=#c_literal{anno=LineAnno,val=Op},args=[A1]},Aps,St1}; expr({op,L,Op,L0,R0}, St0) -> {As,Aps,St1} = safe_list([L0,R0], St0), - LineAnno = lineno_anno(L, St1), + LineAnno = full_anno(L, St1), {#icall{anno=#a{anno=LineAnno}, %Must have an #a{} module=#c_literal{anno=LineAnno,val=erlang}, name=#c_literal{anno=LineAnno,val=Op},args=As},Aps,St1}. @@ -758,86 +758,47 @@ make_bool_switch_guard(L, E, V, T, F) -> {clause,NegL,[V],[],[V]} ]}. -expr_map(M0,Es0,A,St0) -> - {M1,Mps,St1} = safe(M0, St0), +expr_map(M0, Es0, A, St0) -> + {M1,Eps0,St1} = safe(M0, St0), case is_valid_map_src(M1) of true -> - case {M1,Es0} of - {#c_var{}, []} -> - %% transform M#{} to is_map(M) - {Vpat,St2} = new_var(St1), - {Fpat,St3} = new_var(St2), - Cs = [#iclause{ - anno=A, - pats=[Vpat], - guard=[#icall{anno=#a{anno=A}, + {M2,Eps1,St2} = map_build_pairs(M1, Es0, A, St1), + M3 = case Es0 of + [] -> M1; + [_|_] -> M2 + end, + Cs = [#iclause{ + anno=#a{anno=[compiler_generated|A]}, + pats=[], + guard=[#icall{anno=#a{anno=A}, module=#c_literal{anno=A,val=erlang}, name=#c_literal{anno=A,val=is_map}, - args=[Vpat]}], - body=[Vpat]}], - Fc = fail_clause([Fpat], A, #c_literal{val=badarg}), - {#icase{anno=#a{anno=A},args=[M1],clauses=Cs,fc=Fc},Mps,St3}; - {_,_} -> - {M2,Eps,St2} = map_build_pair_chain(M1,Es0,A,St1), - {M2,Mps++Eps,St2} - end; - false -> throw({bad_map,bad_map}) - end. - -%% Group continuous literal blocks and single variables, i.e. -%% M0#{ a := 1, b := V1, K1 := V2, K2 := 42} -%% becomes equivalent to -%% M1 = M0#{ a := 1, b := V1 }, -%% M2 = M1#{ K1 := V1 }, -%% M3 = M2#{ K2 := 42 } - -map_build_pair_chain(M,Es,A,St) -> - %% hack, remove iset if only literal - case map_build_pair_chain(M,Es,A,St,[]) of - {_,[#iset{arg=#c_literal{}=Val}],St1} -> {Val,[],St1}; - Normal -> Normal - end. - -map_build_pair_chain(M0,[],_,St,Mps) -> - {M0,Mps,St}; -map_build_pair_chain(M0,Es0,A,St0,Mps) -> - % group continuous literal blocks - % Anno = #a{anno=[compiler_generated]}, - % order is important, we need to reverse the literals - case map_pair_block(Es0,[],[],St0) of - {{CesL,EspL},{[],[]},Es1,St1} -> - {MVar,St2} = new_var(St1), - Pre = [#iset{var=MVar, arg=ann_c_map(A,M0,reverse(CesL))}], - map_build_pair_chain(MVar,Es1,A,St2,Mps++EspL++Pre); - {{[],[]},{CesV,EspV},Es1,St1} -> - {MVar,St2} = new_var(St1), - Pre = [#iset{var=MVar, arg=#c_map{arg=M0,es=CesV, anno=A}}], - map_build_pair_chain(MVar,Es1,A,St2,Mps ++ EspV++Pre); - {{CesL,EspL},{CesV,EspV},Es1,St1} -> - {MVarL,St2} = new_var(St1), - {MVarV,St3} = new_var(St2), - Pre = [#iset{var=MVarL, arg=ann_c_map(A,M0,reverse(CesL))}, - #iset{var=MVarV, arg=#c_map{arg=MVarL,es=CesV,anno=A}}], - map_build_pair_chain(MVarV,Es1,A,St3,Mps++EspL++EspV++Pre) + args=[M1]}], + body=[M3]}], + Fc = fail_clause([], [eval_failure|A], #c_literal{val=badarg}), + Eps = Eps0 ++ Eps1, + {#icase{anno=#a{anno=A},args=[],clauses=Cs,fc=Fc},Eps,St2}; + false -> + throw({bad_map,bad_map}) end. -map_pair_block([{Op,L,K0,V0}|Es],Ces,Esp,St0) -> - {K,Ep0,St1} = safe(K0, St0), - {V,Ep1,St2} = safe(V0, St1), - A = lineno_anno(L, St2), - Pair0 = map_op_to_c_map_pair(Op), - Pair1 = Pair0#c_map_pair{anno=A,key=K,val=V}, - case cerl:is_literal(K) of - true -> - map_pair_block(Es,[Pair1|Ces],Ep0 ++ Ep1 ++ Esp,St2); - false -> - {{Ces,Esp},{[Pair1],Ep0++Ep1},Es,St2} - end; -map_pair_block([],Ces,Esp,St) -> - {{Ces,Esp},{[],[]},[],St}. +map_build_pairs(Map, Es0, Ann, St0) -> + {Es,Pre,St1} = map_build_pairs_1(Es0, St0), + {ann_c_map(Ann, Map, Es),Pre,St1}. + +map_build_pairs_1([{Op0,L,K0,V0}|Es], St0) -> + {K,Pre0,St1} = safe(K0, St0), + {V,Pre1,St2} = safe(V0, St1), + {Pairs,Pre2,St3} = map_build_pairs_1(Es, St2), + As = lineno_anno(L, St3), + Op = map_op(Op0), + Pair = cerl:ann_c_map_pair(As, Op, K, V), + {[Pair|Pairs],Pre0++Pre1++Pre2,St3}; +map_build_pairs_1([], St) -> + {[],[],St}. -map_op_to_c_map_pair(map_field_assoc) -> #c_map_pair{op=#c_literal{val=assoc}}; -map_op_to_c_map_pair(map_field_exact) -> #c_map_pair{op=#c_literal{val=exact}}. +map_op(map_field_assoc) -> #c_literal{val=assoc}; +map_op(map_field_exact) -> #c_literal{val=exact}. is_valid_map_src(#c_literal{val = M}) when is_map(M) -> true; is_valid_map_src(#c_var{}) -> true; @@ -1001,7 +962,7 @@ fun_tq({_,_,Name}=Id, Cs0, L, St0, NameInfo) -> {Cs1,Ceps,St1} = clauses(Cs0, St0), {Args,St2} = new_vars(Arity, St1), {Ps,St3} = new_vars(Arity, St2), %Need new variables here - Anno = lineno_anno(L, St3), + Anno = full_anno(L, St3), Fc = function_clause(Ps, Anno, {Name,Arity}), Fun = #ifun{anno=#a{anno=Anno}, id=[{id,Id}], %We KNOW! @@ -1011,7 +972,8 @@ fun_tq({_,_,Name}=Id, Cs0, L, St0, NameInfo) -> %% lc_tq(Line, Exp, [Qualifier], Mc, State) -> {LetRec,[PreExp],State}. %% This TQ from Simon PJ pp 127-138. -lc_tq(Line, E, [#igen{anno=GAnno,acc_pat=AccPat,acc_guard=AccGuard, +lc_tq(Line, E, [#igen{anno=GAnno,ceps=Ceps, + acc_pat=AccPat,acc_guard=AccGuard, skip_pat=SkipPat,tail=Tail,tail_pat=TailPat, arg={Pre,Arg}}|Qs], Mc, St0) -> {Name,St1} = new_fun_name("lc", St0), @@ -1046,7 +1008,7 @@ lc_tq(Line, E, [#igen{anno=GAnno,acc_pat=AccPat,acc_guard=AccGuard, Fun = #ifun{anno=LAnno,id=[],vars=[Var],clauses=Cs,fc=Fc}, {#iletrec{anno=LAnno#a{anno=[list_comprehension|LA]},defs=[{{Name,1},Fun}], body=Pre ++ [#iapply{anno=LAnno,op=F,args=[Arg]}]}, - [],St4}; + Ceps,St4}; lc_tq(Line, E, [#ifilter{}=Filter|Qs], Mc, St) -> filter_tq(Line, E, Filter, Mc, St, Qs, fun lc_tq/5); lc_tq(Line, E0, [], Mc0, St0) -> @@ -1060,7 +1022,7 @@ lc_tq(Line, E0, [], Mc0, St0) -> %% This TQ from Gustafsson ERLANG'05. %% More could be transformed before calling bc_tq. -bc_tq(Line, Exp, Qs0, _, St0) -> +bc_tq(Line, Exp, Qs0, St0) -> {BinVar,St1} = new_var(St0), {Sz,SzPre,St2} = bc_initial_size(Exp, Qs0, St1), {Qs,St3} = preprocess_quals(Line, Qs0, St2), @@ -1071,7 +1033,8 @@ bc_tq(Line, Exp, Qs0, _, St0) -> args=[Sz]}}] ++ BcPre, {E,Pre,St}. -bc_tq1(Line, E, [#igen{anno=GAnno,acc_pat=AccPat,acc_guard=AccGuard, +bc_tq1(Line, E, [#igen{anno=GAnno,ceps=Ceps, + acc_pat=AccPat,acc_guard=AccGuard, skip_pat=SkipPat,tail=Tail,tail_pat=TailPat, arg={Pre,Arg}}|Qs], Mc, St0) -> {Name,St1} = new_fun_name("lbc", St0), @@ -1109,7 +1072,7 @@ bc_tq1(Line, E, [#igen{anno=GAnno,acc_pat=AccPat,acc_guard=AccGuard, Fun = #ifun{anno=LAnno,id=[],vars=Vars,clauses=Cs,fc=Fc}, {#iletrec{anno=LAnno#a{anno=[list_comprehension|LA]},defs=[{{Name,2},Fun}], body=Pre ++ [#iapply{anno=LAnno,op=F,args=[Arg,Mc]}]}, - [],St4}; + Ceps,St4}; bc_tq1(Line, E, [#ifilter{}=Filter|Qs], Mc, St) -> filter_tq(Line, E, Filter, Mc, St, Qs, fun bc_tq1/5); bc_tq1(_, {bin,Bl,Elements}, [], AccVar, St0) -> @@ -1245,8 +1208,9 @@ generator(Line, {generate,Lg,P0,E}, Gs, St0) -> ann_c_cons(LA, Skip, Tail)} end, {Ce,Pre,St4} = safe(E, St3), - Gen = #igen{anno=#a{anno=GA},acc_pat=AccPat,acc_guard=Cg,skip_pat=SkipPat, - tail=Tail,tail_pat=#c_literal{anno=LA,val=[]},arg={Ceps++Pre,Ce}}, + Gen = #igen{anno=#a{anno=GA},ceps=Ceps, + acc_pat=AccPat,acc_guard=Cg,skip_pat=SkipPat, + tail=Tail,tail_pat=#c_literal{anno=LA,val=[]},arg={Pre,Ce}}, {Gen,St4}; generator(Line, {b_generate,Lg,P,E}, Gs, St0) -> LA = lineno_anno(Line, St0), @@ -1515,6 +1479,7 @@ force_novars(#iapply{}=App, St) -> {App,[],St}; force_novars(#icall{}=Call, St) -> {Call,[],St}; force_novars(#ifun{}=Fun, St) -> {Fun,[],St}; %These are novars too force_novars(#ibinary{}=Bin, St) -> {Bin,[],St}; +force_novars(#c_map{}=Bin, St) -> {Bin,[],St}; force_novars(Ce, St) -> force_safe(Ce, St). @@ -1634,7 +1599,7 @@ pattern({tuple,L,Ps}, St) -> {annotate_tuple(record_anno(L, St), Ps1, St),Eps,St1}; pattern({map,L,Pairs}, St0) -> {Ps,Eps,St1} = pattern_map_pairs(Pairs, St0), - {#c_map{anno=lineno_anno(L, St1), es=Ps},Eps,St1}; + {#c_map{anno=lineno_anno(L, St1),es=Ps,is_pat=true},Eps,St1}; pattern({bin,L,Ps}, St) -> %% We don't create a #ibinary record here, since there is %% no need to hold any used/new annotations in a pattern. @@ -1656,49 +1621,30 @@ pattern_map_pairs(Ps, St) -> {CMapPair,EpsP,Sti1} = pattern_map_pair(P,Sti0), {CMapPair, {EpsM++EpsP,Sti1}} end, {[],St}, Ps), - {pat_alias_map_pairs(CMapPairs,[]),Eps,St1}. - -%% remove cluddering annotations -pattern_map_clean_key(#c_literal{val=V}) -> {literal,V}; -pattern_map_clean_key(#c_var{name=V}) -> {var,V}. - -pat_alias_map_pairs(Ps1,Ps2) -> - Ps = Ps1 ++ Ps2, - F = fun(#c_map_pair{key=Ck,val=Cv},Dbi) -> - K = pattern_map_clean_key(Ck), - case dict:find(K,Dbi) of - {ok,Cvs} -> dict:store(K,[Cv|Cvs],Dbi); - _ -> dict:store(K,[Cv],Dbi) - end - end, - Kdb = lists:foldl(F,dict:new(),Ps), - pat_alias_map_pairs(Ps,Kdb,sets:new()). - -pat_alias_map_pairs([],_,_) -> []; -pat_alias_map_pairs([#c_map_pair{key=Ck}=Pair|Pairs],Kdb,Set) -> - K = pattern_map_clean_key(Ck), - case sets:is_element(K,Set) of - true -> - pat_alias_map_pairs(Pairs,Kdb,Set); - false -> - Cvs = dict:fetch(K,Kdb), - Cv = pat_alias_map_pair_values(Cvs), - Set1 = sets:add_element(K,Set), - [Pair#c_map_pair{val=Cv}|pat_alias_map_pairs(Pairs,Kdb,Set1)] - end. - -pat_alias_map_pair_values([Cv]) -> Cv; -pat_alias_map_pair_values([Cv1,Cv2|Cvs]) -> - pat_alias_map_pair_values([pat_alias(Cv1,Cv2)|Cvs]). + {pat_alias_map_pairs(CMapPairs),Eps,St1}. pattern_map_pair({map_field_exact,L,K,V}, St0) -> - {Ck,EpsK,St1} = safe_pattern_expr(K,St0), + {Ck,EpsK,St1} = safe_pattern_expr(K, St0), {Cv,EpsV,St2} = pattern(V, St1), - {#c_map_pair{anno=lineno_anno(L,St2), + {#c_map_pair{anno=lineno_anno(L, St2), op=#c_literal{val=exact}, key=Ck, val=Cv},EpsK++EpsV,St2}. +pat_alias_map_pairs(Ps) -> + D = foldl(fun(#c_map_pair{key=K0}=Pair, D0) -> + K = cerl:set_ann(K0, []), + dict:append(K, Pair, D0) + end, dict:new(), Ps), + pat_alias_map_pairs_1(dict:to_list(D)). + +pat_alias_map_pairs_1([{_,[#c_map_pair{val=V0}=Pair|Vs]}|T]) -> + V = foldl(fun(#c_map_pair{val=V}, Pat) -> + pat_alias(V, Pat) + end, V0, Vs), + [Pair#c_map_pair{val=V}|pat_alias_map_pairs_1(T)]; +pat_alias_map_pairs_1([]) -> []. + %% pat_bin([BinElement], State) -> [BinSeg]. pat_bin(Ps, St) -> [pat_segment(P, St) || P <- Ps]. @@ -1740,7 +1686,7 @@ pat_alias(#c_tuple{anno=Anno,es=Es1}, #c_tuple{es=Es2}) -> %% alias maps %% There are no literals in maps patterns (patterns are always abstract) pat_alias(#c_map{es=Es1}=M,#c_map{es=Es2}) -> - M#c_map{es=pat_alias_map_pairs(Es1,Es2)}; + M#c_map{es=pat_alias_map_pairs(Es1++Es2)}; pat_alias(#c_alias{var=V1,pat=P1}, #c_alias{var=V2,pat=P2}) -> @@ -1794,7 +1740,7 @@ new_var_name(#core{vcount=C}=St) -> new_var(St) -> new_var([], St). -new_var(Anno, St0) -> +new_var(Anno, St0) when is_list(Anno) -> {New,St} = new_var_name(St0), {#c_var{anno=Anno,name=New},St}. @@ -1852,7 +1798,7 @@ uclauses(Lcs, Ks, St0) -> uclause(Cl0, Ks, St0) -> {Cl1,_Pvs,Used,New,St1} = uclause(Cl0, Ks, Ks, St0), - A0 = get_ianno(Cl1), + A0 = get_anno(Cl1), A = A0#a{us=Used,ns=New}, {Cl1#iclause{anno=A},St1}. @@ -2021,11 +1967,11 @@ uexpr(#ibinary{anno=A,segments=Ss}, _, St) -> uexpr(#c_literal{}=Lit, _, St) -> Anno = get_anno(Lit), {set_anno(Lit, #a{us=[],anno=Anno}),St}; -uexpr(Lit, _, St) -> - true = is_simple(Lit), %Sanity check! - Vs = lit_vars(Lit), - Anno = get_anno(Lit), - {set_anno(Lit, #a{us=Vs,anno=Anno}),St}. +uexpr(Simple, _, St) -> + true = is_simple(Simple), %Sanity check! + Vs = lit_vars(Simple), + Anno = get_anno(Simple), + {#isimple{anno=#a{us=Vs,anno=Anno},term=Simple},St}. uexpr_list(Les0, Ks, St0) -> mapfoldl(fun (Le, St) -> uexpr(Le, Ks, St) end, St0, Les0). @@ -2039,7 +1985,7 @@ ufun_clauses(Lcs, Ks, St0) -> ufun_clause(Cl0, Ks, St0) -> {Cl1,Pvs,Used,_,St1} = uclause(Cl0, [], Ks, St0), - A0 = get_ianno(Cl1), + A0 = get_anno(Cl1), A = A0#a{us=subtract(intersection(Used, Ks), Pvs),ns=[]}, {Cl1#iclause{anno=A},St1}. @@ -2202,7 +2148,8 @@ cguard(Gs, St0) -> cexprs([#iset{var=#c_var{name=Name}=Var}=Iset], As, St) -> %% Make return value explicit, and make Var true top level. - cexprs([Iset,Var#c_var{anno=#a{us=[Name]}}], As, St); + Isimple = #isimple{anno=#a{us=[Name]},term=Var}, + cexprs([Iset,Isimple], As, St); cexprs([Le], As, St0) -> {Ce,Es,Us,St1} = cexpr(Le, As, St0), Exp = make_vars(As), %The export variables @@ -2317,12 +2264,9 @@ cexpr(#c_literal{}=Lit, _As, St) -> Anno = get_anno(Lit), Vs = Anno#a.us, {set_anno(Lit, Anno#a.anno),[],Vs,St}; -cexpr(Lit, _As, St) -> - true = is_simple(Lit), %Sanity check! - Anno = get_anno(Lit), - Vs = Anno#a.us, - %%Vs = lit_vars(Lit), - {set_anno(Lit, Anno#a.anno),[],Vs,St}. +cexpr(#isimple{anno=#a{us=Vs},term=Simple}, _As, St) -> + true = is_simple(Simple), %Sanity check! + {Simple,[],Vs,St}. cfun(#ifun{anno=A,id=Id,vars=Args,clauses=Lcs,fc=Lfc}, _As, St0) -> {Ccs,St1} = cclauses(Lcs, [], St0), %NEVER export! @@ -2345,11 +2289,6 @@ lit_vars(#c_map_pair{key=K,val=V}, Vs) -> lit_vars(K, lit_vars(V, Vs)); lit_vars(#c_var{name=V}, Vs) -> add_element(V, Vs); lit_vars(_, Vs) -> Vs. %These are atomic -% lit_bin_vars(Segs, Vs) -> -% foldl(fun (#c_bitstr{val=V,size=S}, Vs0) -> -% lit_vars(V, lit_vars(S, Vs0)) -% end, Vs, Segs). - lit_list_vars(Ls) -> lit_list_vars(Ls, []). lit_list_vars(Ls, Vs) -> @@ -2368,16 +2307,21 @@ record_anno(L, St) when L >= ?REC_OFFSET -> true -> [record | lineno_anno(L - ?REC_OFFSET, St)]; false -> - lineno_anno(L, St) + full_anno(L, St) end; record_anno(L, St) when L < -?REC_OFFSET -> case member(dialyzer, St#core.opts) of true -> [record | lineno_anno(L + ?REC_OFFSET, St)]; false -> - lineno_anno(L, St) + full_anno(L, St) end; record_anno(L, St) -> + full_anno(L, St). + +full_anno(L, #core{wanted=false}=St) -> + [result_not_wanted|lineno_anno(L, St)]; +full_anno(L, #core{wanted=true}=St) -> lineno_anno(L, St). lineno_anno(L, St) -> @@ -2389,12 +2333,6 @@ lineno_anno(L, St) -> [Line] ++ St#core.file end. -get_ianno(Ce) -> - case get_anno(Ce) of - #a{}=A -> A; - A when is_list(A) -> #a{anno=A} - end. - get_lineno_anno(Ce) -> case get_anno(Ce) of #a{anno=A} -> A; diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl index 6504351c02..0ac1aaf158 100644 --- a/lib/compiler/src/v3_kernel.erl +++ b/lib/compiler/src/v3_kernel.erl @@ -131,12 +131,12 @@ module(#c_module{anno=A,name=M,exports=Es,attrs=As,defs=Fs}, _Options) -> {ok,#k_mdef{anno=A,name=M#c_literal.val,exports=Kes,attributes=Kas, body=Kfs ++ St#kern.funs},lists:sort(St#kern.ws)}. -attributes([{#c_literal{val=Name},Val}|As]) -> +attributes([{#c_literal{val=Name},#c_literal{val=Val}}|As]) -> case include_attribute(Name) of false -> attributes(As); true -> - [{Name,core_lib:literal_value(Val)}|attributes(As)] + [{Name,Val}|attributes(As)] end; attributes([]) -> []. @@ -273,17 +273,7 @@ expr(#c_tuple{anno=A,es=Ces}, Sub, St0) -> {Kes,Ep,St1} = atomic_list(Ces, Sub, St0), {#k_tuple{anno=A,es=Kes},Ep,St1}; expr(#c_map{anno=A,arg=Var,es=Ces}, Sub, St0) -> - try expr_map(A,Var,Ces,Sub,St0) of - {_,_,_}=Res -> Res - catch - throw:bad_map -> - St1 = add_warning(get_line(A), bad_map, A, St0), - Erl = #c_literal{val=erlang}, - Name = #c_literal{val=error}, - Args = [#c_literal{val=badarg}], - Error = #c_call{anno=A,module=Erl,name=Name,args=Args}, - expr(Error, Sub, St1) - end; + expr_map(A, Var, Ces, Sub, St0); expr(#c_binary{anno=A,segments=Cv}, Sub, St0) -> try atomic_bin(Cv, Sub, St0) of {Kv,Ep,St1} -> @@ -506,77 +496,81 @@ translate_fc(Args) -> [#c_literal{val=function_clause},make_list(Args)]. expr_map(A,Var0,Ces,Sub,St0) -> - %% An extra pass of validation of Map src because of inlining {Var,Mps,St1} = expr(Var0, Sub, St0), - case is_valid_map_src(Var) of - true -> - {Km,Eps,St2} = map_split_pairs(A, Var, Ces, Sub, St1), - {Km,Eps++Mps,St2}; - false -> throw(bad_map) - end. - -is_valid_map_src(#k_map{}) -> true; -is_valid_map_src(#k_literal{val=M}) when is_map(M) -> true; -is_valid_map_src(#k_var{}) -> true; -is_valid_map_src(_) -> false. + {Km,Eps,St2} = map_split_pairs(A, Var, Ces, Sub, St1), + {Km,Eps++Mps,St2}. map_split_pairs(A, Var, Ces, Sub, St0) -> - %% two steps - %% 1. force variables - %% 2. remove multiples - Pairs0 = [{Op,K,V} || #c_map_pair{op=#c_literal{val=Op},key=K,val=V} <- Ces], + %% 1. Force variables. + %% 2. Group adjacent pairs with literal keys. + %% 3. Within each such group, remove multiple assignments to the same key. + %% 4. Partition each group according to operator ('=>' and ':='). + Pairs0 = [{Op,K,V} || + #c_map_pair{op=#c_literal{val=Op},key=K,val=V} <- Ces], {Pairs,Esp,St1} = foldr(fun ({Op,K0,V0}, {Ops,Espi,Sti0}) when Op =:= assoc; Op =:= exact -> {K,Eps1,Sti1} = atomic(K0, Sub, Sti0), {V,Eps2,Sti2} = atomic(V0, Sub, Sti1), {[{Op,K,V}|Ops],Eps1 ++ Eps2 ++ Espi,Sti2} end, {[],[],St0}, Pairs0), - - case map_group_pairs(Pairs) of - {Assoc,[]} -> - Kes = [#k_map_pair{key=K,val=V}||{_,{assoc,K,V}} <- Assoc], - {#k_map{anno=A,op=assoc,var=Var,es=Kes},Esp,St1}; - {[],Exact} -> - Kes = [#k_map_pair{key=K,val=V}||{_,{exact,K,V}} <- Exact], - {#k_map{anno=A,op=exact,var=Var,es=Kes},Esp,St1}; - {Assoc,Exact} -> - Kes1 = [#k_map_pair{key=K,val=V}||{_,{assoc,K,V}} <- Assoc], - {Mvar,Em,St2} = force_atomic(#k_map{anno=A,op=assoc,var=Var,es=Kes1},St1), - Kes2 = [#k_map_pair{key=K,val=V}||{_,{exact,K,V}} <- Exact], - {#k_map{anno=A,op=exact,var=Mvar,es=Kes2},Esp ++ Em,St2} - + map_split_pairs_1(A, Var, Pairs, Esp, St1). + +map_split_pairs_1(A, Map0, [{Op,Key,Val}|Pairs1]=Pairs0, Esp0, St0) -> + {Map1,Em,St1} = force_atomic(Map0, St0), + case Key of + #k_var{} -> + %% Don't combine variable keys with other keys. + Kes = [#k_map_pair{key=Key,val=Val}], + Map = #k_map{anno=A,op=Op,var=Map1,es=Kes}, + map_split_pairs_1(A, Map, Pairs1, Esp0 ++ Em, St1); + _ -> + %% Literal key. Split off all literal keys. + {L,Pairs} = splitwith(fun({_,#k_var{},_}) -> false; + ({_,_,_}) -> true + end, Pairs0), + {Map,Esp,St2} = map_group_pairs(A, Map1, L, Esp0 ++ Em, St1), + map_split_pairs_1(A, Map, Pairs, Esp, St2) + end; +map_split_pairs_1(_, Map, [], Esp, St0) -> + {Map,Esp,St0}. + +map_group_pairs(A, Var, Pairs0, Esp, St0) -> + Pairs = map_remove_dup_keys(Pairs0), + Assoc = [#k_map_pair{key=K,val=V} || {_,{assoc,K,V}} <- Pairs], + Exact = [#k_map_pair{key=K,val=V} || {_,{exact,K,V}} <- Pairs], + case {Assoc,Exact} of + {[_|_],[]} -> + {#k_map{anno=A,op=assoc,var=Var,es=Assoc},Esp,St0}; + {[],[_|_]} -> + {#k_map{anno=A,op=exact,var=Var,es=Exact},Esp,St0}; + {[_|_],[_|_]} -> + Map = #k_map{anno=A,op=assoc,var=Var,es=Assoc}, + {Mvar,Em,St1} = force_atomic(Map, St0), + {#k_map{anno=A,op=exact,var=Mvar,es=Exact},Esp ++ Em,St1} end. -%% Group map by Assoc operations and Exact operations +map_remove_dup_keys(Es) -> + dict:to_list(map_remove_dup_keys(Es, dict:new())). -map_group_pairs(Es) -> - Groups = dict:to_list(map_group_pairs(Es,dict:new())), - partition(fun({_,{Op,_,_}}) -> Op =:= assoc end, Groups). - -map_group_pairs([{assoc,K,V}|Es0],Used0) -> - Used1 = case map_key_is_used(K,Used0) of - {ok, {assoc,_,_}} -> map_key_set_used(K,{assoc,K,V},Used0); - {ok, {exact,_,_}} -> map_key_set_used(K,{exact,K,V},Used0); - _ -> map_key_set_used(K,{assoc,K,V},Used0) - end, - map_group_pairs(Es0,Used1); -map_group_pairs([{exact,K,V}|Es0],Used0) -> - Used1 = case map_key_is_used(K,Used0) of - {ok, {assoc,_,_}} -> map_key_set_used(K,{assoc,K,V},Used0); - {ok, {exact,_,_}} -> map_key_set_used(K,{exact,K,V},Used0); - _ -> map_key_set_used(K,{exact,K,V},Used0) - end, - map_group_pairs(Es0,Used1); -map_group_pairs([],Used) -> - Used. - -map_key_set_used(K,How,Used) -> - dict:store(map_key_clean(K),How,Used). - -map_key_is_used(K,Used) -> - dict:find(map_key_clean(K),Used). +map_remove_dup_keys([{assoc,K0,V}|Es0],Used0) -> + K = map_key_clean(K0), + Op = case dict:find(K, Used0) of + {ok,{exact,_,_}} -> exact; + _ -> assoc + end, + Used1 = dict:store(K, {Op,K0,V}, Used0), + map_remove_dup_keys(Es0, Used1); +map_remove_dup_keys([{exact,K0,V}|Es0],Used0) -> + K = map_key_clean(K0), + Op = case dict:find(K, Used0) of + {ok,{assoc,_,_}} -> assoc; + _ -> exact + end, + Used1 = dict:store(K, {Op,K0,V}, Used0), + map_remove_dup_keys(Es0, Used1); +map_remove_dup_keys([], Used) -> Used. -%% Be explicit instead of using set_kanno(K,[]) +%% Be explicit instead of using set_kanno(K, []). map_key_clean(#k_var{name=V}) -> {var,V}; map_key_clean(#k_literal{val=V}) -> {lit,V}; map_key_clean(#k_int{val=V}) -> {lit,V}; @@ -661,12 +655,12 @@ atomic_bin([#c_bitstr{anno=A,val=E0,size=S0,unit=U0,type=T,flags=Fs0}|Es0], {E,Ap1,St1} = atomic(E0, Sub, St0), {S1,Ap2,St2} = atomic(S0, Sub, St1), validate_bin_element_size(S1), - U1 = core_lib:literal_value(U0), - Fs1 = core_lib:literal_value(Fs0), + U1 = cerl:concrete(U0), + Fs1 = cerl:concrete(Fs0), {Es,Ap3,St3} = atomic_bin(Es0, Sub, St2), {#k_bin_seg{anno=A,size=S1, unit=U1, - type=core_lib:literal_value(T), + type=cerl:concrete(T), flags=Fs1, seg=E,next=Es}, Ap1++Ap2++Ap3,St3}; @@ -793,8 +787,8 @@ pattern_bin_1([#c_bitstr{anno=A,val=E0,size=S0,unit=U,type=T,flags=Fs}|Es0], %% problems. #k_atom{val=bad_size} end, - U0 = core_lib:literal_value(U), - Fs0 = core_lib:literal_value(Fs), + U0 = cerl:concrete(U), + Fs0 = cerl:concrete(Fs), %%ok= io:fwrite("~w: ~p~n", [?LINE,{B0,S,U0,Fs0}]), {E,Osub1,St2} = pattern(E0, Isub0, Osub0, St1), Isub1 = case E0 of @@ -805,7 +799,7 @@ pattern_bin_1([#c_bitstr{anno=A,val=E0,size=S0,unit=U,type=T,flags=Fs}|Es0], {Es,{Isub,Osub},St3} = pattern_bin_1(Es0, Isub1, Osub1, St2), {#k_bin_seg{anno=A,size=S, unit=U0, - type=core_lib:literal_value(T), + type=cerl:concrete(T), flags=Fs0, seg=E,next=Es}, {Isub,Osub},St3}; @@ -2010,9 +2004,7 @@ format_error(nomatch_shadow) -> format_error(bad_call) -> "invalid module and/or function name; this call will always fail"; format_error(bad_segment_size) -> - "binary construction will fail because of a type mismatch"; -format_error(bad_map) -> - "map construction will fail because of a type mismatch". + "binary construction will fail because of a type mismatch". add_warning(none, Term, Anno, #kern{ws=Ws}=St) -> File = get_file(Anno), diff --git a/lib/compiler/test/Makefile b/lib/compiler/test/Makefile index 892a401c75..73d52a48bc 100644 --- a/lib/compiler/test/Makefile +++ b/lib/compiler/test/Makefile @@ -11,6 +11,7 @@ MODULES= \ beam_validator_SUITE \ beam_disasm_SUITE \ beam_except_SUITE \ + beam_utils_SUITE \ bs_bincomp_SUITE \ bs_bit_binaries_SUITE \ bs_construct_SUITE \ @@ -40,6 +41,7 @@ NO_OPT= \ andor \ apply \ beam_except \ + beam_utils \ bs_construct \ bs_match \ bs_utf \ @@ -59,6 +61,7 @@ NO_OPT= \ INLINE= \ andor \ apply \ + beam_utils \ bs_bincomp \ bs_bit_binaries \ bs_construct \ diff --git a/lib/compiler/test/andor_SUITE.erl b/lib/compiler/test/andor_SUITE.erl index b5408ecd8f..3199440d84 100644 --- a/lib/compiler/test/andor_SUITE.erl +++ b/lib/compiler/test/andor_SUITE.erl @@ -33,7 +33,7 @@ all() -> [{group,p}]. groups() -> - [{p,test_lib:parallel(), + [{p,[parallel], [t_case,t_and_or,t_andalso,t_orelse,inside,overlap, combined,in_case,before_and_inside_if]}]. @@ -173,7 +173,13 @@ t_and_or(Config) when is_list(Config) -> true = (fun (X = true) when X or true or X -> true end)(True), - ok. + Tuple = id({a,b}), + case Tuple of + {_,_} -> + {'EXIT',{badarg,_}} = (catch true and Tuple) + end, + + ok. t_andalso(Config) when is_list(Config) -> Bs = [true,false], diff --git a/lib/compiler/test/beam_utils_SUITE.erl b/lib/compiler/test/beam_utils_SUITE.erl new file mode 100644 index 0000000000..d2e24cb5ae --- /dev/null +++ b/lib/compiler/test/beam_utils_SUITE.erl @@ -0,0 +1,236 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 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(beam_utils_SUITE). + +-export([all/0,suite/0,groups/0,init_per_suite/1,end_per_suite/1, + init_per_group/2,end_per_group/2, + apply_fun/1,apply_mf/1,bs_init/1,bs_save/1, + is_not_killed/1,is_not_used_at/1, + select/1,y_catch/1]). +-export([id/1]). + +suite() -> [{ct_hooks,[ts_install_cth]}]. + +all() -> + test_lib:recompile(?MODULE), + [{group,p}]. + +groups() -> + [{p,[parallel], + [apply_fun, + apply_mf, + bs_init, + bs_save, + is_not_killed, + is_not_used_at, + select, + y_catch + ]}]. + +init_per_suite(Config) -> + Config. + +end_per_suite(_Config) -> + ok. + +init_per_group(_GroupName, Config) -> + Config. + +end_per_group(_GroupName, Config) -> + Config. + +apply_fun(_Config) -> + 3 = do_apply_fun(false, false), + 3 = do_apply_fun(false, true), + 3 = do_apply_fun(true, false), + 2 = do_apply_fun(true, true), + ok. + +do_apply_fun(X, Y) -> + F = fun(I) -> I+1 end, + Arg = case X andalso id(Y) of + true -> 1; + false -> 2 + end, + F(Arg). + +apply_mf(_Config) -> + ok = do_apply_mf_used({a,b}, ?MODULE, id), + error = do_apply_mf_used([a], ?MODULE, id), + {'EXIT',{{case_clause,{[],b}},_}} = (catch do_apply_mf_used({[],b}, ?MODULE, id)), + + error = do_apply_mf_killed({error,[a]}, ?MODULE, id), + ok = do_apply_mf_killed([b], ?MODULE, id), + {'EXIT',{{case_clause,{a,[b]}},_}} = (catch do_apply_mf_killed({a,[b]}, ?MODULE, id)), + {'EXIT',{{case_clause,{error,[]}},_}} = (catch do_apply_mf_killed({error,[]}, ?MODULE, id)), + + ok. + +do_apply_mf_used(Arg, Mod, Func) -> + Res = case id(Arg) of + {Decoded,_} when Decoded =/= [] -> + ok; + List when is_list(List) -> + error + end, + Mod:Func(Res). + +do_apply_mf_killed(Arg, Mod, Func) -> + Res = case id(Arg) of + {Tag,Decoded} when Decoded =/= [], Tag =:= error -> + error; + List when is_list(List) -> + ok + end, + Mod:Func(Res). + +bs_init(_Config) -> + <<7>> = do_bs_init_1([?MODULE], 7), + error = do_bs_init_1([?MODULE], 0.0), + error = do_bs_init_1([?MODULE], -43), + error = do_bs_init_1([?MODULE], 42), + + <<>> = do_bs_init_2([]), + <<0:32,((1 bsl 32)-1):32>> = do_bs_init_2([0,(1 bsl 32)-1]), + {'EXIT',{badarg,_}} = (catch do_bs_init_2([0.5])), + {'EXIT',{badarg,_}} = (catch do_bs_init_2([-1])), + {'EXIT',{badarg,_}} = (catch do_bs_init_2([1 bsl 32])), + ok. + +do_bs_init_1([?MODULE], Sz) -> + if + is_integer(Sz), Sz >= -42, Sz < 42 -> + id(<<Sz:8>>); + true -> + error + end. + +do_bs_init_2(SigNos) -> + << <<SigNo:32>> || + SigNo <- SigNos, + (is_integer(SigNo) andalso SigNo >= 0 andalso SigNo < (1 bsl 32)) orelse + erlang:error(badarg) + >>. + + +bs_save(_Config) -> + {a,30,<<>>} = do_bs_save(<<1:1,30:5>>), + {b,127,<<>>} = do_bs_save(<<1:1,31:5,0:1,127:7>>), + {c,127,<<>>} = do_bs_save(<<1:1,31:5,1:1,127:7>>), + {c,127,<<>>} = do_bs_save(<<0:1,31:5,1:1,127:7>>), + {d,1024,<<>>} = do_bs_save(<<0:1,31:5>>), + ok. + +do_bs_save(<<_:1, Tag:5, T/binary>>) when Tag < 31 -> + {a,Tag,T}; +do_bs_save(<<1:1, 31:5, 0:1, Tag:7, T/binary>>) -> + {b,Tag,T}; +do_bs_save(<<_:1, 31:5, 1:1, Tag:7, T/binary>>) -> + {c,Tag,T}; +do_bs_save(<<_:1, 31:5, T/binary>>) -> + {d,1024,T}. + +is_not_killed(_Config) -> + {Pid,Ref} = spawn_monitor(fun() -> exit(banan) end), + receive + {'DOWN', Ref, process, Pid, banan} -> + ok + end, + receive after 0 -> ok end. + +is_not_used_at(_Config) -> + {a,b} = do_is_not_used_at(a, [{a,b}]), + {a,b} = do_is_not_used_at(a, [x,{a,b}]), + {a,b} = do_is_not_used_at(a, [{x,y},{a,b}]), + none = do_is_not_used_at(z, [{a,b}]), + none = do_is_not_used_at(a, [x]), + none = do_is_not_used_at(a, [{x,y}]), + ok. + +do_is_not_used_at(Key, [P|Ps]) -> + if + tuple_size(P) >= 1, element(1, P) =:= Key -> + P; + true -> + do_is_not_used_at(Key, Ps) + end; +do_is_not_used_at(_Key, []) -> none. + +-record(select, {fixed=false}). + +select(_Config) -> + a = do_select(#select{}, 0, 0), + b = do_select(#select{}, 0, 1), + c = do_select(#select{fixed=true}, 0, 0), + c = do_select(#select{fixed=true}, 0, 1), + ok. + +do_select(Head, OldSize, BSize) -> + Overwrite0 = + if + OldSize =:= BSize -> same; + true -> true + end, + Overwrite = + if + Head#select.fixed =/= false -> + false; + true -> + Overwrite0 + end, + if + Overwrite =:= same -> + a; + Overwrite -> + b; + true -> + c + end. + +y_catch(_Config) -> + ok = try + do_y_catch(<<"<?xmlX">>, {state}), + failed + catch + throw:{<<"<?xmlX">>,{state}} -> + ok + end. + +do_y_catch(<<"<?xml",Rest0/binary>> = Bytes, State0) -> + {Rest1,State1} = + case do_y_catch_1(Rest0, State0) of + false -> + {Bytes,State0}; + true -> + {_XmlAttributes, R, S} = do_y_catch_2(Rest0), + {R,S} + end, + case catch id({Rest1,State1}) of + Other -> + throw(Other) + end. + +do_y_catch_1(<<_,_/binary>>, _) -> + false. + +do_y_catch_2(_) -> {a,b,c}. + + +%% The identity function. +id(I) -> I. diff --git a/lib/compiler/test/beam_validator_SUITE.erl b/lib/compiler/test/beam_validator_SUITE.erl index 626f89ba7a..1b1c7db0e8 100644 --- a/lib/compiler/test/beam_validator_SUITE.erl +++ b/lib/compiler/test/beam_validator_SUITE.erl @@ -21,16 +21,17 @@ -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2, init_per_testcase/2,end_per_testcase/2, - beam_files/1,compiler_bug/1,stupid_but_valid/1, + compiler_bug/1,stupid_but_valid/1, xrange/1,yrange/1,stack/1,call_last/1,merge_undefined/1, uninit/1,unsafe_catch/1, - dead_code/1,mult_labels/1, + dead_code/1, overwrite_catchtag/1,overwrite_trytag/1,accessing_tags/1,bad_catch_try/1, cons_guard/1, freg_range/1,freg_uninit/1,freg_state/1, - bin_match/1,bad_bin_match/1,bin_aligned/1,bad_dsetel/1, + bad_bin_match/1,bin_aligned/1,bad_dsetel/1, state_after_fault_in_catch/1,no_exception_in_catch/1, - undef_label/1,illegal_instruction/1,failing_gc_guard_bif/1]). + undef_label/1,illegal_instruction/1,failing_gc_guard_bif/1, + map_field_lists/1]). -include_lib("test_server/include/test_server.hrl"). @@ -47,18 +48,19 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> test_lib:recompile(?MODULE), - [beam_files,{group,p}]. + [{group,p}]. groups() -> [{p,test_lib:parallel(), [compiler_bug,stupid_but_valid,xrange, yrange,stack,call_last,merge_undefined,uninit, - unsafe_catch,dead_code,mult_labels, + unsafe_catch,dead_code, overwrite_catchtag,overwrite_trytag,accessing_tags, bad_catch_try,cons_guard,freg_range,freg_uninit, - freg_state,bin_match,bad_bin_match,bin_aligned,bad_dsetel, + freg_state,bad_bin_match,bin_aligned,bad_dsetel, state_after_fault_in_catch,no_exception_in_catch, - undef_label,illegal_instruction,failing_gc_guard_bif]}]. + undef_label,illegal_instruction,failing_gc_guard_bif, + map_field_lists]}]. init_per_suite(Config) -> Config. @@ -72,33 +74,19 @@ init_per_group(_GroupName, Config) -> end_per_group(_GroupName, Config) -> Config. - -beam_files(Config) when is_list(Config) -> - ?line DataDir = proplists:get_value(data_dir, Config), - ?line Wc = filename:join([DataDir,"..","..","*","*.beam"]), - %% Must have at least two files here, or there will be - %% a grammatical error in the output of the io:format/2 call below. ;-) - ?line [_,_|_] = Fs = filelib:wildcard(Wc), - ?line io:format("~p files\n", [length(Fs)]), - test_lib:p_run(fun do_beam_file/1, Fs). - - -do_beam_file(F) -> - case beam_validator:file(F) of - ok -> - ok; - {error,Es} -> - io:format("File: ~s", [F]), - io:format("Error: ~p\n", [Es]), - error - end. - compiler_bug(Config) when is_list(Config) -> %% Check that the compiler returns an error if we try to %% assemble one of the bad '.S' files. - ?line Data = ?config(data_dir, Config), - ?line File = filename:join(Data, "stack"), - ?line error = compile:file(File, [asm,report_errors,binary,time]), + Data = ?config(data_dir, Config), + File = filename:join(Data, "compiler_bug"), + error = compile:file(File, [from_asm,report_errors,time]), + + %% Make sure that the error was reported by + %% the beam_validator module. + {error, + [{"compiler_bug", + [{beam_validator,_}]}], + []} = compile:file(File, [from_asm,return_errors,time]), ok. %% The following code is stupid but it should compile. @@ -134,7 +122,7 @@ yrange(Config) when is_list(Config) -> {{move,{x,1},{y,-1}},5, {invalid_store,{y,-1},term}}}, {{t,sum_2,2}, - {{bif,'+',{f,0},[{x,0},{y,1024}],{x,0}},8, + {{bif,'+',{f,0},[{x,0},{y,1024}],{x,0}},7, {uninitialized_reg,{y,1024}}}}, {{t,sum_3,2}, {{move,{x,1},{y,1024}},5,limit}}, @@ -145,31 +133,31 @@ yrange(Config) when is_list(Config) -> stack(Config) when is_list(Config) -> Errors = do_val(stack, Config), - ?line [{{t,a,2},{return,11,{stack_frame,2}}}, - {{t,b,2},{{deallocate,2},4,{allocated,none}}}, - {{t,c,2},{{deallocate,2},12,{allocated,none}}}, - {{t,d,2}, - {{allocate,2,2},5,{existing_stack_frame,{size,2}}}}, - {{t,e,2},{{deallocate,5},6,{allocated,2}}}, - {{t,bad_1,0},{{allocate_zero,2,10},4,{{x,9},not_live}}}, - {{t,bad_2,0},{{move,{y,0},{x,0}},5,{unassigned,{y,0}}}}] = Errors, + [{{t,a,2},{return,9,{stack_frame,2}}}, + {{t,b,2},{{deallocate,2},4,{allocated,none}}}, + {{t,bad_1,0},{{allocate_zero,2,10},4,{{x,9},not_live}}}, + {{t,bad_2,0},{{move,{y,0},{x,0}},5,{unassigned,{y,0}}}}, + {{t,c,2},{{deallocate,2},10,{allocated,none}}}, + {{t,d,2}, + {{allocate,2,2},5,{existing_stack_frame,{size,2}}}}, + {{t,e,2},{{deallocate,5},6,{allocated,2}}}] = Errors, ok. call_last(Config) when is_list(Config) -> Errors = do_val(call_last, Config), - ?line [{{t,a,1},{{call_last,1,{f,8},2},11,{allocated,1}}}, - {{t,b,1}, - {{call_ext_last,2,{extfunc,lists,seq,2},2}, - 11, - {allocated,1}}}] = Errors, + [{{t,a,1},{{call_last,1,{f,8},2},9,{allocated,1}}}, + {{t,b,1}, + {{call_ext_last,2,{extfunc,lists,seq,2},2}, + 10, + {allocated,1}}}] = Errors, ok. merge_undefined(Config) when is_list(Config) -> Errors = do_val(merge_undefined, Config), - ?line [{{t,handle_call,2}, - {{call_ext,2,{extfunc,debug,filter,2}}, - 22, - {uninitialized_reg,{y,0}}}}] = Errors, + [{{t,handle_call,2}, + {{call_ext,2,{extfunc,debug,filter,2}}, + 22, + {uninitialized_reg,{y,0}}}}] = Errors, ok. uninit(Config) when is_list(Config) -> @@ -178,10 +166,10 @@ uninit(Config) when is_list(Config) -> [{{t,sum_1,2}, {{move,{y,0},{x,0}},5,{uninitialized_reg,{y,0}}}}, {{t,sum_2,2}, - {{call,1,{f,10}},6,{uninitialized_reg,{y,0}}}}, + {{call,1,{f,8}},5,{uninitialized_reg,{y,0}}}}, {{t,sum_3,2}, {{bif,'+',{f,0},[{x,0},{y,0}],{x,0}}, - 7, + 6, {unassigned,{y,0}}}}] = Errors, ok. @@ -199,10 +187,6 @@ dead_code(Config) when is_list(Config) -> [] = do_val(dead_code, Config), ok. -mult_labels(Config) when is_list(Config) -> - [] = do_val(erl_prim_loader, Config, ".beam"), - ok. - overwrite_catchtag(Config) when is_list(Config) -> Errors = do_val(overwrite_catchtag, Config), ?line @@ -214,16 +198,15 @@ overwrite_trytag(Config) when is_list(Config) -> Errors = do_val(overwrite_trytag, Config), ?line [{{overwrite_trytag,foo,1}, - {{kill,{y,2}},9,{trytag,_}}}] = Errors, + {{kill,{y,2}},8,{trytag,_}}}] = Errors, ok. accessing_tags(Config) when is_list(Config) -> Errors = do_val(accessing_tags, Config), - ?line - [{{accessing_tags,foo,1}, - {{move,{y,0},{x,0}},6,{catchtag,_}}}, - {{accessing_tags,bar,1}, - {{move,{y,0},{x,0}},6,{trytag,_}}}] = Errors, + [{{accessing_tags,bar,1}, + {{move,{y,0},{x,0}},6,{trytag,_}}}, + {{accessing_tags,foo,1}, + {{move,{y,0},{x,0}},6,{catchtag,_}}}] = Errors, ok. bad_catch_try(Config) when is_list(Config) -> @@ -310,13 +293,6 @@ freg_state(Config) when is_list(Config) -> {fclearerror,5,{bad_floating_point_state,cleared}}}] = Errors, ok. -bin_match(Config) when is_list(Config) -> - Errors = do_val(bin_match, Config), - ?line - [{{t,t,1},{{bs_save,0},4,no_bs_match_state}}, - {{t,x,1},{{bs_restore,1},16,{no_save_point,1}}}] = Errors, - ok. - bad_bin_match(Config) when is_list(Config) -> [{{t,t,1},{return,5,{match_context,{x,0}}}}] = do_val(bad_bin_match, Config), @@ -340,36 +316,69 @@ bad_dsetel(Config) when is_list(Config) -> ?line [{{t,t,1}, {{set_tuple_element,{x,1},{x,0},1}, - 15, + 17, illegal_context_for_set_tuple_element}}] = Errors, ok. state_after_fault_in_catch(Config) when is_list(Config) -> Errors = do_val(state_after_fault_in_catch, Config), - [{{t,foo,1}, - {{move,{x,1},{x,0}},10,{uninitialized_reg,{x,1}}}}, - {{state_after_fault_in_catch,if_end,1}, + [{{state_after_fault_in_catch,badmatch,1}, {{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}}, {{state_after_fault_in_catch,case_end,1}, {{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}}, - {{state_after_fault_in_catch,badmatch,1}, - {{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}}] = Errors, + {{state_after_fault_in_catch,if_end,1}, + {{move,{x,1},{x,0}},9,{uninitialized_reg,{x,1}}}}, + {{t,foo,1}, + {{move,{x,1},{x,0}},10,{uninitialized_reg,{x,1}}}}] = Errors, ok. no_exception_in_catch(Config) when is_list(Config) -> Errors = do_val(no_exception_in_catch, Config), [{{no_exception_in_catch,nested_of_1,4}, - {{move,{x,3},{x,0}},91,{uninitialized_reg,{x,3}}}}] = Errors, + {{move,{x,3},{x,0}},88,{uninitialized_reg,{x,3}}}}] = Errors, ok. undef_label(Config) when is_list(Config) -> - Errors = do_val(undef_label, Config), + M = {undef_label, + [{t,1}], + [], + [{function,t,1,2, + [{label,1}, + {func_info,{atom,undef_label},{atom,t},1}, + {label,2}, + {test,is_eq_exact,{f,42},[{x,0},{atom,x}]}, + {move,{atom,ok},{x,0}}, + return]}, + {function,x,1,17, + [{label,3}, + {func_info,{atom,undef_label},{atom,x},1}, + {label,4}, + return]}], + 5}, + Errors = beam_val(M), [{{undef_label,t,1},{undef_labels,[42]}}, {{undef_label,x,1},{return,4,no_entry_label}}] = Errors, ok. illegal_instruction(Config) when is_list(Config) -> - Errors = do_val(illegal_instruction, Config), + M = {illegal_instruction, + [{t,1},{x,1},{y,0}], + [], + [{function,t,1,2, + [{label,1}, + {func_info,{atom,illegal_instruction},{atom,t},1}, + {label,2}, + {my_illegal_instruction,{x,0}}, + return]}, + {function,x,1,4, + [{label,3}, + bad_func_info, + {label,4}, + {my_illegal_instruction,{x,0}}, + return]}, + {function,y,0,17,[]}], + 5}, + Errors = beam_val(M), [{{illegal_instruction,t,1}, {{my_illegal_instruction,{x,0}},4,unknown_instruction}}, {{'_',x,1},{bad_func_info,1,illegal_instruction}}, @@ -407,19 +416,40 @@ process_request_foo(_) -> process_request_bar(Pid, [Response]) when is_pid(Pid) -> Response. +map_field_lists(Config) -> + Errors = do_val(map_field_lists, Config), + [{{map_field_lists,x,1}, + {{test,has_map_fields,{f,1},{x,0}, + {list,[{atom,z},{atom,a}]}}, + 5, + not_strict_order}}, + {{map_field_lists,y,1}, + {{test,has_map_fields,{f,3},{x,0},{list,[]}}, + 5, + empty_field_list}} + ] = Errors. %%%------------------------------------------------------------------------- -do_val(Name, Config) -> - do_val(Name, Config, ".S"). - -do_val(Name, Config, Type) -> - ?line Data = ?config(data_dir, Config), - ?line File = filename:join(Data, atom_to_list(Name)++Type), - ?line case beam_validator:file(File) of - {error,Errors} -> - ?line io:format("~p:~n~s", - [File,beam_validator:format_error(Errors)]), - Errors; - ok -> [] - end. +do_val(Mod, Config) -> + Data = ?config(data_dir, Config), + Base = atom_to_list(Mod), + File = filename:join(Data, Base), + case compile:file(File, [from_asm,no_postopt,return_errors]) of + {error,L,[]} -> + [{Base,Errors0}] = L, + Errors = [E || {beam_validator,E} <- Errors0], + _ = [io:put_chars(beam_validator:format_error(E)) || + E <- Errors], + Errors; + {ok,Mod} -> + [] + end. + +beam_val(M) -> + Name = atom_to_list(element(1, M)), + {error,[{Name,Errors0}]} = beam_validator:module(M, []), + Errors = [E || {beam_validator,E} <- Errors0], + _ = [io:put_chars(beam_validator:format_error(E)) || + E <- Errors], + Errors. diff --git a/lib/compiler/test/beam_validator_SUITE_data/bad_dsetel.S b/lib/compiler/test/beam_validator_SUITE_data/bad_dsetel.S index 279b2fa97f..9630d73a93 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/bad_dsetel.S +++ b/lib/compiler/test/beam_validator_SUITE_data/bad_dsetel.S @@ -1,4 +1,4 @@ -{module, t}. %% version = 0 +{module, bad_dsetel}. %% version = 0 {exports, [{module_info,0},{module_info,1},{t,1}]}. @@ -21,7 +21,9 @@ {move,{integer,3},{x,0}}. {call_ext,3,{extfunc,erlang,setelement,3}}. {test_heap,6,1}. - {put_string,3,{string,"abc"},{x,1}}. + {put_list,{integer,99},nil,{x,1}}. + {put_list,{integer,98},{x,1},{x,1}}. + {put_list,{integer,97},{x,1},{x,1}}. {set_tuple_element,{x,1},{x,0},1}. {'%live',1}. {deallocate,0}. diff --git a/lib/compiler/test/beam_validator_SUITE_data/bin_aligned.S b/lib/compiler/test/beam_validator_SUITE_data/bin_aligned.S index 2f353fbd25..a59f7ccc03 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/bin_aligned.S +++ b/lib/compiler/test/beam_validator_SUITE_data/bin_aligned.S @@ -1,4 +1,4 @@ -{module, t}. %% version = 0 +{module, bin_aligned}. %% version = 0 {exports, [{decode,1},{module_info,0},{module_info,1}]}. diff --git a/lib/compiler/test/beam_validator_SUITE_data/bin_match.S b/lib/compiler/test/beam_validator_SUITE_data/bin_match.S deleted file mode 100644 index 96df0f7933..0000000000 --- a/lib/compiler/test/beam_validator_SUITE_data/bin_match.S +++ /dev/null @@ -1,64 +0,0 @@ -{module, bin_match}. %% version = 0 - -{exports, [{t,1}]}. - -{attributes, []}. - -{labels, 8}. - - -{function, t, 1, 2}. - {label,1}. - {func_info,{atom,t},{atom,t},1}. - {label,2}. -%% {test,bs_start_match,{f,1},[{x,0}]}. - {bs_save,0}. - {test,bs_get_integer, - {f,3}, - [{integer,8},1,{field_flags,[aligned,unsigned,big]},{x,1}]}. - {test,bs_get_integer, - {f,3}, - [{integer,8},1,{field_flags,[aligned,unsigned,big]},{x,2}]}. - {test,bs_test_tail,{f,3},[0]}. - {test_heap,3,3}. - {put_tuple,2,{x,0}}. - {put,{x,1}}. - {put,{x,2}}. - {'%live',1}. - return. - {label,3}. - {bs_restore,0}. - {test,bs_get_integer, - {f,1}, - [{integer,32},1,{field_flags,[aligned,unsigned,big]},{x,1}]}. - {test,bs_test_tail,{f,1},[0]}. - {move,{x,1},{x,0}}. - return. - -{function, x, 1, 5}. - {label,4}. - {func_info,{atom,t},{atom,x},1}. - {label,5}. - {test,bs_start_match,{f,4},[{x,0}]}. - {bs_save,0}. - {test,bs_get_integer, - {f,6}, - [{integer,8},1,{field_flags,[aligned,unsigned,big]},{x,1}]}. - {test,bs_get_integer, - {f,6}, - [{integer,8},1,{field_flags,[aligned,unsigned,big]},{x,2}]}. - {test,bs_test_tail,{f,6},[0]}. - {test_heap,3,3}. - {put_tuple,2,{x,0}}. - {put,{x,1}}. - {put,{x,2}}. - {'%live',1}. - return. - {label,6}. - {bs_restore,1}. - {test,bs_get_integer, - {f,4}, - [{integer,32},1,{field_flags,[aligned,unsigned,big]},{x,1}]}. - {test,bs_test_tail,{f,4},[0]}. - {move,{x,1},{x,0}}. - return. diff --git a/lib/compiler/test/beam_validator_SUITE_data/compiler_bug.S b/lib/compiler/test/beam_validator_SUITE_data/compiler_bug.S new file mode 100644 index 0000000000..ba27bf5c47 --- /dev/null +++ b/lib/compiler/test/beam_validator_SUITE_data/compiler_bug.S @@ -0,0 +1,38 @@ +{module, compiler_bug}. %% version = 0 + +{exports, [{module_info,0},{module_info,1},{sum,2}]}. + +{attributes, []}. + +{labels, 7}. + + +{function, sum, 2, 2}. + {label,1}. + {line,[{location,"compiler_bug.erl",4}]}. + {func_info,{atom,compiler_bug},{atom,sum},2}. + {label,2}. + {line,[{location,"compiler_bug.erl",5}]}. + {gc_bif,'+',{f,0},2,[{y,0},{y,1}],{x,0}}. + return. + + +{function, module_info, 0, 4}. + {label,3}. + {line,[]}. + {func_info,{atom,compiler_bug},{atom,module_info},0}. + {label,4}. + {move,{atom,compiler_bug},{x,0}}. + {line,[]}. + {call_ext_only,1,{extfunc,erlang,get_module_info,1}}. + + +{function, module_info, 1, 6}. + {label,5}. + {line,[]}. + {func_info,{atom,compiler_bug},{atom,module_info},1}. + {label,6}. + {move,{x,0},{x,1}}. + {move,{atom,compiler_bug},{x,0}}. + {line,[]}. + {call_ext_only,2,{extfunc,erlang,get_module_info,2}}. diff --git a/lib/compiler/test/beam_validator_SUITE_data/dead_code.S b/lib/compiler/test/beam_validator_SUITE_data/dead_code.S index f964f98fba..c114664ba0 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/dead_code.S +++ b/lib/compiler/test/beam_validator_SUITE_data/dead_code.S @@ -1,10 +1,10 @@ {module, dead_code}. %% version = 0 -{exports, [{execute,0},{module_info,0},{module_info,1}]}. +{exports, [{execute,0}]}. {attributes, []}. -{labels, 10}. +{labels, 6}. {function, execute, 0, 2}. @@ -12,7 +12,6 @@ {func_info,{atom,dead_code},{atom,execute},0}. {label,2}. {allocate,0,0}. - {'%live',0}. {call_ext,0,{extfunc,foo,fie,0}}. {test,is_ne,{f,4},[{x,0},{integer,0}]}. {test,is_ne,{f,4},[{x,0},{integer,1}]}. @@ -22,27 +21,7 @@ {case_end,{x,0}}. {label,4}. {move,{atom,ok},{x,0}}. - {'%live',1}. {deallocate,0}. return. - {'%','Moved code'}. {label,5}. {case_end,{x,0}}. - - -{function, module_info, 0, 7}. - {label,6}. - {func_info,{atom,dead_code},{atom,module_info},0}. - {label,7}. - {move,nil,{x,0}}. - {'%live',1}. - return. - - -{function, module_info, 1, 9}. - {label,8}. - {func_info,{atom,dead_code},{atom,module_info},1}. - {label,9}. - {move,nil,{x,0}}. - {'%live',1}. - return. diff --git a/lib/compiler/test/beam_validator_SUITE_data/erl_prim_loader.beam b/lib/compiler/test/beam_validator_SUITE_data/erl_prim_loader.beam Binary files differdeleted file mode 100644 index dd58a88e42..0000000000 --- a/lib/compiler/test/beam_validator_SUITE_data/erl_prim_loader.beam +++ /dev/null diff --git a/lib/compiler/test/beam_validator_SUITE_data/freg_range.S b/lib/compiler/test/beam_validator_SUITE_data/freg_range.S index ee583a923e..b3ebff3ade 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/freg_range.S +++ b/lib/compiler/test/beam_validator_SUITE_data/freg_range.S @@ -1,10 +1,10 @@ {module, freg_range}. %% version = 0 -{exports, [{module_info,0},{module_info,1},{prod,2},{sum,2},{sum_prod,3}]}. +{exports, [{sum_1,2},{sum_2,2},{sum_3,2},{sum_4,2}]}. {attributes, []}. -{labels, 8}. +{labels, 9}. {function, sum_1, 2, 2}. diff --git a/lib/compiler/test/beam_validator_SUITE_data/freg_state.S b/lib/compiler/test/beam_validator_SUITE_data/freg_state.S index ff4d7548ae..7466763482 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/freg_state.S +++ b/lib/compiler/test/beam_validator_SUITE_data/freg_state.S @@ -1,6 +1,6 @@ {module, freg_state}. %% version = 0 -{exports, []}. +{exports, [{sum_1,2},{sum_2,2},{sum_3,2},{sum_4,2},{sum_5,2}]}. {attributes, []}. diff --git a/lib/compiler/test/beam_validator_SUITE_data/freg_uninit.S b/lib/compiler/test/beam_validator_SUITE_data/freg_uninit.S index f8d805d9ec..71e833446a 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/freg_uninit.S +++ b/lib/compiler/test/beam_validator_SUITE_data/freg_uninit.S @@ -1,10 +1,10 @@ {module, freg_uninit}. %% version = 0 -{exports, []}. +{exports, [{sum_1,2},{sum_2,2}]}. {attributes, []}. -{labels, 8}. +{labels, 7}. {function, sum_1, 2, 2}. @@ -14,7 +14,6 @@ {fconv,{x,0},{fr,0}}. fclearerror. {bif,fadd,{f,0},[{fr,0},{fr,1}],{fr,0}}. - {'%live',1}. return. @@ -26,7 +25,12 @@ {fconv,{x,1},{fr,1}}. fclearerror. {fcheckerror,{f,0}}. - {call,2,{f,8}}. + {call,2,{f,6}}. {bif,fadd,{f,0},[{fr,0},{fr,1}],{fr,0}}. - {'%live',1}. + return. + +{function, foo, 2, 6}. + {label,5}. + {func_info,{atom,t},{atom,foo},2}. + {label,6}. return. diff --git a/lib/compiler/test/beam_validator_SUITE_data/illegal_instruction.S b/lib/compiler/test/beam_validator_SUITE_data/illegal_instruction.S deleted file mode 100644 index d6e92abc71..0000000000 --- a/lib/compiler/test/beam_validator_SUITE_data/illegal_instruction.S +++ /dev/null @@ -1,26 +0,0 @@ -{module, illegal_instruction}. %% version = 0 - -{exports, []}. - -{attributes, []}. - -{labels, 7}. - - -{function, t, 1, 2}. - {label,1}. - {func_info,{atom,illegal_instruction},{atom,t},1}. - {label,2}. - {my_illegal_instruction,{x,0}}. - return. - - -{function, x, 1, 4}. - {label,3}. - bad_func_info. - {label,4}. - {my_illegal_instruction,{x,0}}. - return. - -{function, y, 0, 17}. -
\ No newline at end of file diff --git a/lib/compiler/test/beam_validator_SUITE_data/map_field_lists.S b/lib/compiler/test/beam_validator_SUITE_data/map_field_lists.S new file mode 100644 index 0000000000..9af68c82d4 --- /dev/null +++ b/lib/compiler/test/beam_validator_SUITE_data/map_field_lists.S @@ -0,0 +1,29 @@ +{module, map_field_lists}. %% version = 0 + +{exports, [{x,1},{y,1}]}. + +{attributes, []}. + +{labels, 5}. + + +{function, x, 1, 2}. + {label,1}. + {line,[{location,"map_field_lists.erl",4}]}. + {func_info,{atom,map_field_lists},{atom,x},1}. + {label,2}. + {test,is_map,{f,1},[{x,0}]}. + {test,has_map_fields,{f,1},{x,0},{list,[{atom,z},{atom,a}]}}. + {move,{atom,ok},{x,0}}. + return. + + +{function, y, 1, 4}. + {label,3}. + {line,[{location,"map_field_lists.erl",7}]}. + {func_info,{atom,map_field_lists},{atom,y},1}. + {label,4}. + {test,is_map,{f,3},[{x,0}]}. + {test,has_map_fields,{f,3},{x,0},{list,[]}}. + {move,{atom,ok},{x,0}}. + return. diff --git a/lib/compiler/test/beam_validator_SUITE_data/merge_undefined.S b/lib/compiler/test/beam_validator_SUITE_data/merge_undefined.S index 3d76127824..481d55045d 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/merge_undefined.S +++ b/lib/compiler/test/beam_validator_SUITE_data/merge_undefined.S @@ -22,7 +22,8 @@ {label,4}. {allocate_heap,1,6,2}. {move,{x,1},{y,0}}. - {put_string,2,{string,"~p"},{x,0}}. + {put_list,{integer,112},nil,{x,0}}. + {put_list,{integer,126},{x,0},{x,0}}. {put_list,{y,0},nil,{x,1}}. {'%live',2}. {call_ext,2,{extfunc,io,format,2}}. diff --git a/lib/compiler/test/beam_validator_SUITE_data/no_exception_in_catch.S b/lib/compiler/test/beam_validator_SUITE_data/no_exception_in_catch.S index e08a718a39..1a5b417a5f 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/no_exception_in_catch.S +++ b/lib/compiler/test/beam_validator_SUITE_data/no_exception_in_catch.S @@ -26,7 +26,7 @@ {call_ext,1,{extfunc,erlang,erase,1}}. {move,{atom,nested},{x,0}}. {call_ext,1,{extfunc,erlang,erase,1}}. - {bif,self,nofail,[],{x,0}}. + {bif,self,{f,0},[],{x,0}}. {'try',{y,8},{f,13}}. {'try',{y,7},{f,11}}. {'try',{y,6},{f,9}}. @@ -34,7 +34,7 @@ %% Because the following instructions can't possible throw an exception, %% label 7 used to get no state. Now the try_end itself will save the state. {move,{x,0},{y,4}}. - {bif,self,nofail,[],{x,0}}. + {bif,self,{f,0},[],{x,0}}. {'%live',1}. {try_end,{y,5}}. {test,is_eq_exact,{f,15},[{x,0},{y,4}]}. diff --git a/lib/compiler/test/beam_validator_SUITE_data/stack.S b/lib/compiler/test/beam_validator_SUITE_data/stack.S index 244c22a2f9..e4356a9d00 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/stack.S +++ b/lib/compiler/test/beam_validator_SUITE_data/stack.S @@ -1,10 +1,10 @@ {module, stack}. %% version = 0 -{exports, [{a,2},{b,2},{c,2},{d,2},{e,2}]}. +{exports, [{a,2},{b,2},{c,2},{d,2},{e,2},{bad_1,0},{bad_2,0},{foo,0}]}. {attributes, []}. -{labels, 21}. +{labels, 17}. {function, a, 2, 2}. diff --git a/lib/compiler/test/beam_validator_SUITE_data/undef_label.S b/lib/compiler/test/beam_validator_SUITE_data/undef_label.S deleted file mode 100644 index dd29066bf4..0000000000 --- a/lib/compiler/test/beam_validator_SUITE_data/undef_label.S +++ /dev/null @@ -1,22 +0,0 @@ -{module, undef_label}. %% version = 0 - -{exports, []}. - -{attributes, []}. - -{labels, 7}. - - -{function, t, 1, 2}. - {label,1}. - {func_info,{atom,undef_label},{atom,t},1}. - {label,2}. - {test,is_eq_exact,{f,42},[{x,0},{atom,x}]}. - {move,{atom,ok},{x,0}}. - return. - -{function, x, 1, 17}. - {label,3}. - {func_info,{atom,undef_label},{atom,x},1}. - {label,4}. - return. diff --git a/lib/compiler/test/beam_validator_SUITE_data/uninit.S b/lib/compiler/test/beam_validator_SUITE_data/uninit.S index 1a45c31411..9a66f4f7d6 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/uninit.S +++ b/lib/compiler/test/beam_validator_SUITE_data/uninit.S @@ -1,9 +1,11 @@ {module, uninit}. %% version = 0 -{exports, []}. +{exports, [{sum_1,2},{sum_2,2},{sum_3,2}]}. {attributes, []}. +{labels, 9}. + {function, sum_1, 2, 2}. {label,1}. {func_info,{atom,t},{atom,sum_1},2}. @@ -11,7 +13,7 @@ {allocate,1,2}. {move,{y,0},{x,0}}. {'%live',1}. - {call,1,{f,10}}. + {call,1,{f,8}}. {bif,'+',{f,0},[{x,0},{y,0}],{x,0}}. {'%live',1}. {deallocate,1}. @@ -23,7 +25,7 @@ {label,4}. {allocate,1,2}. {'%live',1}. - {call,1,{f,10}}. + {call,1,{f,8}}. {bif,'+',{f,0},[{x,0},{y,0}],{x,0}}. {'%live',1}. {deallocate,1}. @@ -35,14 +37,14 @@ {label,6}. {allocate_zero,1,2}. {'%live',1}. - {call,1,{f,10}}. + {call,1,{f,8}}. {bif,'+',{f,0},[{x,0},{y,0}],{x,0}}. {'%live',1}. {deallocate,1}. return. -{function, id, 1, 10}. - {label,9}. +{function, id, 1, 8}. + {label,7}. {func_info,{atom,t},{atom,id},1}. - {label,10}. + {label,8}. return. diff --git a/lib/compiler/test/beam_validator_SUITE_data/xrange.S b/lib/compiler/test/beam_validator_SUITE_data/xrange.S index 3abbdffbc2..c6f20288f7 100644 --- a/lib/compiler/test/beam_validator_SUITE_data/xrange.S +++ b/lib/compiler/test/beam_validator_SUITE_data/xrange.S @@ -1,10 +1,10 @@ {module, xrange}. %% version = 0 -{exports, [{module_info,0},{module_info,1},{prod,2},{sum,2},{sum_prod,3}]}. +{exports, [{sum_1,2},{sum_2,2},{sum_3,2},{sum_4,2}]}. {attributes, []}. -{labels, 8}. +{labels, 9}. {function, sum_1, 2, 2}. diff --git a/lib/compiler/test/bs_bit_binaries_SUITE.erl b/lib/compiler/test/bs_bit_binaries_SUITE.erl index 8609a490f5..2433e7621e 100644 --- a/lib/compiler/test/bs_bit_binaries_SUITE.erl +++ b/lib/compiler/test/bs_bit_binaries_SUITE.erl @@ -37,7 +37,7 @@ all() -> [{group,p}]. groups() -> - [{p,test_lib:parallel(), + [{p,[parallel], [misc,horrid_match,test_bitstr,test_bit_size, asymmetric_tests,big_asymmetric_tests, binary_to_and_from_list,big_binary_to_and_from_list, diff --git a/lib/compiler/test/bs_construct_SUITE.erl b/lib/compiler/test/bs_construct_SUITE.erl index ce39de2a82..9df874c387 100644 --- a/lib/compiler/test/bs_construct_SUITE.erl +++ b/lib/compiler/test/bs_construct_SUITE.erl @@ -39,7 +39,7 @@ all() -> [{group,p}]. groups() -> - [{p,test_lib:parallel(), + [{p,[parallel], [two,test1,fail,float_bin,in_guard,in_catch, nasty_literals,side_effect,opt,otp_7556,float_arith, otp_8054]}]. diff --git a/lib/compiler/test/bs_match_SUITE.erl b/lib/compiler/test/bs_match_SUITE.erl index 149b9bbb8f..f7af56afcc 100644 --- a/lib/compiler/test/bs_match_SUITE.erl +++ b/lib/compiler/test/bs_match_SUITE.erl @@ -34,7 +34,7 @@ otp_7188/1,otp_7233/1,otp_7240/1,otp_7498/1, match_string/1,zero_width/1,bad_size/1,haystack/1, cover_beam_bool/1,matched_out_size/1,follow_fail_branch/1, - no_partition/1,calling_a_binary/1]). + no_partition/1,calling_a_binary/1,binary_in_map/1]). -export([coverage_id/1,coverage_external_ignore/2]). @@ -48,7 +48,7 @@ all() -> [{group,p}]. groups() -> - [{p,test_lib:parallel(), + [{p,[parallel], [fun_shadow,int_float,otp_5269,null_fields,wiger, bin_tail,save_restore,shadowed_size_var, partitioned_bs_match,function_clause,unit, @@ -59,7 +59,7 @@ groups() -> matching_and_andalso,otp_7188,otp_7233,otp_7240, otp_7498,match_string,zero_width,bad_size,haystack, cover_beam_bool,matched_out_size,follow_fail_branch, - no_partition,calling_a_binary]}]. + no_partition,calling_a_binary,binary_in_map]}]. init_per_suite(Config) -> @@ -368,11 +368,20 @@ partitioned_bs_match_3(Var, <<_>>) -> Var; partitioned_bs_match_3(1, 2) -> ok. function_clause(Config) when is_list(Config) -> - ?line ok = function_clause_1(<<0,7,0,7,42>>), - ?line fc(function_clause_1, [<<0,1,2,3>>], - catch function_clause_1(<<0,1,2,3>>)), - ?line fc(function_clause_1, [<<0,1,2,3>>], - catch function_clause_1(<<0,7,0,1,2,3>>)), + ok = function_clause_1(<<0,7,0,7,42>>), + fc(function_clause_1, [<<0,1,2,3>>], + catch function_clause_1(<<0,1,2,3>>)), + fc(function_clause_1, [<<0,1,2,3>>], + catch function_clause_1(<<0,7,0,1,2,3>>)), + + ok = function_clause_2(<<0,7,0,7,42>>), + ok = function_clause_2(<<255>>), + ok = function_clause_2(<<13:4>>), + fc(function_clause_2, [<<0,1,2,3>>], + catch function_clause_2(<<0,1,2,3>>)), + fc(function_clause_2, [<<0,1,2,3>>], + catch function_clause_2(<<0,7,0,1,2,3>>)), + ok. function_clause_1(<<0:8,7:8,T/binary>>) -> @@ -380,6 +389,13 @@ function_clause_1(<<0:8,7:8,T/binary>>) -> function_clause_1(<<_:8>>) -> ok. +function_clause_2(<<0:8,7:8,T/binary>>) -> + function_clause_2(T); +function_clause_2(<<_:8>>) -> + ok; +function_clause_2(<<_:4>>) -> + ok. + unit(Config) when is_list(Config) -> ?line 42 = peek1(<<42>>), ?line 43 = peek1(<<43,1,2>>), @@ -1189,6 +1205,26 @@ call_binary(<<>>, Acc) -> call_binary(<<H,T/bits>>, Acc) -> T(<<Acc/binary,H>>). +binary_in_map(Config) when is_list(Config) -> + ok = match_binary_in_map(#{key => <<42:8>>}), + {'EXIT',{{badmatch,#{key := 1}},_}} = + (catch match_binary_in_map(#{key => 1})), + {'EXIT',{{badmatch,#{key := <<1023:16>>}},_}} = + (catch match_binary_in_map(#{key => <<1023:16>>})), + {'EXIT',{{badmatch,#{key := <<1:8>>}},_}} = + (catch match_binary_in_map(#{key => <<1:8>>})), + {'EXIT',{{badmatch,not_a_map},_}} = + (catch match_binary_in_map(not_a_map)), + ok. + +match_binary_in_map(Map) -> + case 8 of + N -> + #{key := <<42:N>>} = Map, + ok + end. + + check(F, R) -> R = F(). diff --git a/lib/compiler/test/compilation_SUITE.erl b/lib/compiler/test/compilation_SUITE.erl index 8711f35e8e..296774e083 100644 --- a/lib/compiler/test/compilation_SUITE.erl +++ b/lib/compiler/test/compilation_SUITE.erl @@ -611,12 +611,10 @@ otp_7345(Config) when is_list(Config) -> otp_7345(ObjRef, _RdEnv, Args) -> Cid = ObjRef#contextId.cid, - _DpRef = - #dpRef{cid = Cid, + _ = #dpRef{cid = Cid, ms_device_context_id = cid_id, tlli = #ptmsi{value = 0}}, - _QosProfile = - #qosProfileBssgp{peak_bit_rate_msb = 0, + _ = #qosProfileBssgp{peak_bit_rate_msb = 0, peak_bit_rate_lsb = 80, t_a_precedence = 49}, [Cpdu|_] = Args, diff --git a/lib/compiler/test/compile_SUITE.erl b/lib/compiler/test/compile_SUITE.erl index 128291dc67..1c96abe017 100644 --- a/lib/compiler/test/compile_SUITE.erl +++ b/lib/compiler/test/compile_SUITE.erl @@ -30,7 +30,7 @@ other_output/1, encrypted_abstr/1, bad_record_use1/1, bad_record_use2/1, strict_record/1, missing_testheap/1, cover/1, env/1, core/1, asm/1, - sys_pre_attributes/1]). + sys_pre_attributes/1, dialyzer/1]). -export([init/3]). @@ -47,7 +47,7 @@ all() -> other_output, encrypted_abstr, {group, bad_record_use}, strict_record, missing_testheap, cover, env, core, asm, - sys_pre_attributes]. + sys_pre_attributes, dialyzer]. groups() -> [{bad_record_use, [], @@ -748,42 +748,65 @@ env_1(Simple, Target) -> %% compile the generated Core Erlang files. core(Config) when is_list(Config) -> - ?line Dog = test_server:timetrap(test_server:minutes(5)), - ?line PrivDir = ?config(priv_dir, Config), - ?line Outdir = filename:join(PrivDir, "core"), - ?line ok = file:make_dir(Outdir), + PrivDir = ?config(priv_dir, Config), + Outdir = filename:join(PrivDir, "core"), + ok = file:make_dir(Outdir), - ?line Wc = filename:join(filename:dirname(code:which(?MODULE)), "*.beam"), - ?line TestBeams = filelib:wildcard(Wc), - ?line Abstr = [begin {ok,{Mod,[{abstract_code, + Wc = filename:join(filename:dirname(code:which(?MODULE)), "*.beam"), + TestBeams = filelib:wildcard(Wc), + Abstr = [begin {ok,{Mod,[{abstract_code, {raw_abstract_v1,Abstr}}]}} = beam_lib:chunks(Beam, [abstract_code]), {Mod,Abstr} end || Beam <- TestBeams], - ?line Res = test_lib:p_run(fun(F) -> do_core(F, Outdir) end, Abstr), - ?line test_server:timetrap_cancel(Dog), - Res. - + test_lib:p_run(fun(F) -> do_core(F, Outdir) end, Abstr). do_core({M,A}, Outdir) -> try - {ok,M,Core} = compile:forms(A, [to_core,report]), - CoreFile = filename:join(Outdir, atom_to_list(M)++".core"), - CorePP = core_pp:format(Core), - ok = file:write_file(CoreFile, CorePP), - case compile:file(CoreFile, [clint,from_core,binary]) of - {ok,M,_} -> - ok = file:delete(CoreFile); - Other -> - io:format("*** core_lint failure '~p' for ~s\n", - [Other,CoreFile]), - error - end - catch Class:Error -> + do_core_1(M, A, Outdir) + catch + throw:{error,Error} -> + io:format("*** compilation failure '~p' for module ~s\n", + [Error,M]), + error; + Class:Error -> io:format("~p: ~p ~p\n~p\n", [M,Class,Error,erlang:get_stacktrace()]), error end. +do_core_1(M, A, Outdir) -> + {ok,M,Core0} = compile:forms(A, [to_core]), + CoreFile = filename:join(Outdir, atom_to_list(M)++".core"), + CorePP = core_pp:format(Core0), + ok = file:write_file(CoreFile, CorePP), + + %% Parse the .core file and return the result as Core Erlang Terms. + Core = case compile:file(CoreFile, [report_errors,from_core,no_copt,to_core,binary]) of + {ok,M,Core1} -> Core1; + Other -> throw({error,Other}) + end, + ok = file:delete(CoreFile), + + %% Compile as usual (including optimizations). + compile_forms(Core, [clint,from_core,binary]), + + %% Don't optimize to test that we are not dependent + %% on the Core Erlang optmimization passes. + %% (Example of a previous bug: The core_parse pass + %% would not turn map literals into #c_literal{} + %% records; if sys_core_fold was run it would fix + %% that; if sys_core_fold was not run v3_kernel would + %% crash.) + compile_forms(Core, [clint,from_core,no_copt,binary]), + + ok. + +compile_forms(Forms, Opts) -> + case compile:forms(Forms, [report_errors|Opts]) of + {ok,[],_} -> ok; + Other -> throw({error,Other}) + end. + %% Compile to Beam assembly language (.S) and then try to %% run .S through the compiler again. @@ -854,6 +877,20 @@ sys_pre_attributes(Config) -> [report,verbose]), ok. +%% Test the dialyzer option to cover more code. +dialyzer(Config) -> + Priv = ?config(priv_dir, Config), + file:set_cwd(?config(data_dir, Config)), + Opts = [{outdir,Priv},report_errors], + M = dialyzer_test, + {ok,M} = c:c(M, [dialyzer|Opts]), + [{a,b,c}] = M:M(), + + %% Cover huge line numbers without the 'dialyzer' option. + {ok,M} = c:c(M, Opts), + [{a,b,c}] = M:M(), + ok. + %%% %%% Utilities. %%% diff --git a/lib/compiler/test/compile_SUITE_data/dialyzer_test.erl b/lib/compiler/test/compile_SUITE_data/dialyzer_test.erl new file mode 100644 index 0000000000..ed65ff9c43 --- /dev/null +++ b/lib/compiler/test/compile_SUITE_data/dialyzer_test.erl @@ -0,0 +1,39 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 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(dialyzer_test). +-export([?MODULE/0,turtle/0,test/1,huge/1]). + +-record(turtle, {a,b,c}). +-record(tortoise, {a,b,c}). + +?MODULE() -> + [{a,b,c}]. + +turtle() -> + #turtle{a=1,b=2,c=3}. + +test(T) -> + {T#tortoise.a,T#tortoise.b}. + +-file("dialyzer_test", 100000000). + +huge(X) -> + #turtle{a=42,b=100,c=511}, + X#tortoise.a. diff --git a/lib/compiler/test/core_SUITE_data/map_core_test.core b/lib/compiler/test/core_SUITE_data/map_core_test.core index 2aa853d450..a75f6cf24f 100644 --- a/lib/compiler/test/core_SUITE_data/map_core_test.core +++ b/lib/compiler/test/core_SUITE_data/map_core_test.core @@ -7,11 +7,11 @@ module 'map_core_test' ['map_core_test'/0, fun () -> let <_cor0> = %% Line 15 - ~{::<'check','ok'>,::<1337,#{#<104>(8,1,'integer',['unsigned'|['big']]), + ~{'check'=>'ok',1337=>#{#<104>(8,1,'integer',['unsigned'|['big']]), #<101>(8,1,'integer',['unsigned'|['big']]), #<108>(8,1,'integer',['unsigned'|['big']]), #<108>(8,1,'integer',['unsigned'|['big']]), - #<111>(8,1,'integer',['unsigned'|['big']])}#>,::<'val',0>}~ + #<111>(8,1,'integer',['unsigned'|['big']])}#,'val'=>0}~ in let <M> = %% Line 15 apply 'id'/1 @@ -23,7 +23,7 @@ module 'map_core_test' ['map_core_test'/0, in %% Line 16 case apply 'call'/2 (M, _cor2) of - <~{~<1337,#{#<104>(8,1,'integer',['unsigned'|['big']]), + <~{1337:=#{#<104>(8,1,'integer',['unsigned'|['big']]), #<101>(8,1,'integer',['unsigned'|['big']]), #<108>(8,1,'integer',['unsigned'|['big']]), #<108>(8,1,'integer',['unsigned'|['big']]), @@ -39,7 +39,7 @@ module 'map_core_test' ['map_core_test'/0, #<32>(8,1,'integer',['unsigned'|['big']]), #<53>(8,1,'integer',['unsigned'|['big']]), #<32>(8,1,'integer',['unsigned'|['big']]), - #<54>(8,1,'integer',['unsigned'|['big']])}#>,~<'check','ok'>,~<'val',21>}~> when 'true' -> + #<54>(8,1,'integer',['unsigned'|['big']])}#,'check':='ok','val':=21}~> when 'true' -> %% Line 17 'ok' ( <_cor3> when 'true' -> @@ -51,7 +51,7 @@ module 'map_core_test' ['map_core_test'/0, %% Line 20 fun (_cor1,_cor0) -> case <_cor1,_cor0> of - <M = ~{~<1337,Bin>,~<'check',_cor8>,~<'val',Val>}~,[V|Vs]> when 'true' -> + <M = ~{1337:=Bin,'check':=_cor8,'val':=Val}~,[V|Vs]> when 'true' -> let <_cor3> = %% Line 21 call 'erlang':'+' @@ -67,7 +67,7 @@ module 'map_core_test' ['map_core_test'/0, (Val, V) in let <_cor5> = %% Line 21 - ~{~<1337,_cor4>,~<'val',_cor2>|M}~ + ~{1337:=_cor4,'val':=_cor2|M}~ in %% Line 21 apply 'call'/2 (_cor5, Vs) diff --git a/lib/compiler/test/core_fold_SUITE.erl b/lib/compiler/test/core_fold_SUITE.erl index 6a7036d728..512aada203 100644 --- a/lib/compiler/test/core_fold_SUITE.erl +++ b/lib/compiler/test/core_fold_SUITE.erl @@ -23,7 +23,8 @@ t_element/1,setelement/1,t_length/1,append/1,t_apply/1,bifs/1, eq/1,nested_call_in_case/1,guard_try_catch/1,coverage/1, unused_multiple_values_error/1,unused_multiple_values/1, - multiple_aliases/1,redundant_boolean_clauses/1,mixed_matching_clauses/1]). + multiple_aliases/1,redundant_boolean_clauses/1, + mixed_matching_clauses/1,unnecessary_building/1]). -export([foo/0,foo/1,foo/2,foo/3]). @@ -36,11 +37,12 @@ all() -> [{group,p}]. groups() -> - [{p,test_lib:parallel(), + [{p,[parallel], [t_element,setelement,t_length,append,t_apply,bifs, eq,nested_call_in_case,guard_try_catch,coverage, unused_multiple_values_error,unused_multiple_values, - multiple_aliases,redundant_boolean_clauses,mixed_matching_clauses]}]. + multiple_aliases,redundant_boolean_clauses, + mixed_matching_clauses,unnecessary_building]}]. init_per_suite(Config) -> @@ -60,6 +62,12 @@ t_element(Config) when is_list(Config) -> X = make_ref(), ?line X = id(element(1, {X,y,z})), ?line b = id(element(2, {a,b,c,d})), + (fun() -> + case {a,#{k=>X}} of + {a,#{k:=X}}=Tuple -> + #{k:=X} = id(element(2, Tuple)) + end + end)(), %% No optimization, but should work. Tuple = id({x,y,z}), @@ -189,7 +197,10 @@ foo(A, B, C) -> A + B + C. bifs(Config) when is_list(Config) -> - ?line <<1,2,3,4>> = id(list_to_binary([1,2,3,4])), + <<1,2,3,4>> = id(list_to_binary([1,2,3,4])), + K = {a,key}, + V = {a,value}, + {ok,#{K:=V}} = id(list_to_tuple([ok,#{K=>V}])), ok. -define(CMP_SAME(A0, B), (fun(A) -> true = A == B, false = A /= B end)(id(A0))). @@ -204,6 +215,16 @@ eq(Config) when is_list(Config) -> ?line ?CMP_DIFF(a, [a]), ?line ?CMP_DIFF(a, {1,2,3}), + ?CMP_SAME(#{a=>1.0,b=>2}, #{b=>2.0,a=>1}), + ?CMP_SAME(#{a=>[1.0],b=>[2]}, #{b=>[2.0],a=>[1]}), + + %% The rule for comparing keys are different in 17.x and 18.x. + %% Just test that the results are consistent. + Bool = id(#{1=>a}) == id(#{1.0=>a}), %Unoptimizable. + Bool = id(#{1=>a}) == #{1.0=>a}, %Optimizable. + Bool = #{1=>a} == #{1.0=>a}, %Optimizable. + io:format("Bool = ~p\n", [Bool]), + ok. %% OTP-7117. @@ -236,6 +257,8 @@ do_guard_try_catch(K, V) -> false end. +-record(cover_opt_guard_try, {list=[]}). + coverage(Config) when is_list(Config) -> ?line {'EXIT',{{case_clause,{a,b,c}},_}} = (catch cover_will_match_list_type({a,b,c})), @@ -245,6 +268,9 @@ coverage(Config) when is_list(Config) -> ?line error = cover_will_match_lit_list(), {ok,[a]} = cover_is_safe_bool_expr(a), + ok = cover_opt_guard_try(#cover_opt_guard_try{list=[a]}), + error = cover_opt_guard_try(#cover_opt_guard_try{list=[]}), + %% Make sure that we don't attempt to make literals %% out of pids. (Putting a pid into a #c_literal{} %% would crash later compiler passes.) @@ -257,6 +283,12 @@ coverage(Config) when is_list(Config) -> error = bsm_an_inlined(<<1,2,3>>, Config), error = bsm_an_inlined([], Config), + %% Cover eval_rel_op/4. + Tuple = id({a,b}), + false = case Tuple of + {_,_} -> + Tuple =:= true + end, ok. cover_will_match_list_type(A) -> @@ -298,6 +330,14 @@ cover_is_safe_bool_expr(X) -> false end. +cover_opt_guard_try(Msg) -> + if + length(Msg#cover_opt_guard_try.list) =/= 1 -> + error; + true -> + ok + end. + bsm_an_inlined(<<_:8>>, _) -> ok; bsm_an_inlined(_, _) -> error. @@ -384,4 +424,29 @@ mixed_matching_clauses(Config) when is_list(Config) -> end, ok. +unnecessary_building(Config) when is_list(Config) -> + Term1 = do_unnecessary_building_1(test_lib:id(a)), + [{a,a},{a,a}] = Term1, + 7 = erts_debug:size(Term1), + + %% The Input term should not be rebuilt (thus, it should + %% only be counted once in the size of the combined term). + Input = test_lib:id({a,b,c}), + Term2 = test_lib:id(do_unnecessary_building_2(Input)), + {b,[{a,b,c},none],x} = Term2, + 4+4+4+2 = erts_debug:size([Term2|Input]), + + ok. + +do_unnecessary_building_1(S) -> + %% The tuple must only be built once. + F0 = F1 = {S,S}, + [F0,F1]. + +do_unnecessary_building_2({a,_,_}=T) -> + %% The T term should not be rebuilt. + {b, + [_,_] = [T,none], + x}. + id(I) -> I. diff --git a/lib/compiler/test/float_SUITE.erl b/lib/compiler/test/float_SUITE.erl index afc04fd440..fb8da37f4f 100644 --- a/lib/compiler/test/float_SUITE.erl +++ b/lib/compiler/test/float_SUITE.erl @@ -118,6 +118,7 @@ math_functions(Config) when is_list(Config) -> ?line 0.0 = math:sinh(0), ?line 1.0 = math:cosh(0), ?line 0.0 = math:tanh(0), + 1.0 = math:log2(2), ?line 1.0 = math:log10(10), ?line -1.0 = math:cos(math:pi()), ?line 1.0 = math:exp(0), @@ -136,6 +137,7 @@ math_functions(Config) when is_list(Config) -> ?line 0.0 = math:sinh(id(0)), ?line 1.0 = math:cosh(id(0)), ?line 0.0 = math:tanh(id(0)), + 1.0 = math:log2(id(2)), ?line 1.0 = math:log10(id(10)), ?line 1.0 = math:exp(id(0)), ?line 0.0 = math:log(id(1)), diff --git a/lib/compiler/test/guard_SUITE.erl b/lib/compiler/test/guard_SUITE.erl index eb205d09a7..08279d9408 100644 --- a/lib/compiler/test/guard_SUITE.erl +++ b/lib/compiler/test/guard_SUITE.erl @@ -30,7 +30,7 @@ old_guard_tests/1, build_in_guard/1,gbif/1, t_is_boolean/1,is_function_2/1, - tricky/1,rel_ops/1,literal_type_tests/1, + tricky/1,rel_ops/1,rel_op_combinations/1,literal_type_tests/1, basic_andalso_orelse/1,traverse_dcd/1, check_qlc_hrl/1,andalso_semi/1,t_tuple_size/1,binary_part/1, bad_constants/1,bad_guards/1]). @@ -42,12 +42,13 @@ all() -> [{group,p}]. groups() -> - [{p,test_lib:parallel(), + [{p,[parallel], [misc,const_cond,basic_not,complex_not,nested_nots, semicolon,complex_semicolon,comma,or_guard, more_or_guards,complex_or_guards,and_guard,xor_guard, more_xor_guards,build_in_guard,old_guard_tests,gbif, - t_is_boolean,is_function_2,tricky,rel_ops, + t_is_boolean,is_function_2,tricky, + rel_ops,rel_op_combinations, literal_type_tests,basic_andalso_orelse,traverse_dcd, check_qlc_hrl,andalso_semi,t_tuple_size,binary_part, bad_constants,bad_guards]}]. @@ -330,7 +331,15 @@ complex_semicolon(Config) when is_list(Config) -> ?line ok = csemi6({a,b}, 0), ?line ok = csemi6({}, 3), ?line ok = csemi6({a,b,c}, 3), - + + %% 7 + error = csemi7(#{a=>1}, 1, 0), + error = csemi7(<<>>, 1, 0), + ok = csemi7(#{a=>1}, 3, 0), + ok = csemi7(#{a=>1}, 0, 3), + ok = csemi7(#{a=>1}, 3, 3), + ok = csemi7(#{a=>1, b=>3}, 0, 0), + ok. csemi1(Type, Val) when is_list(Val), Type == float; @@ -442,6 +451,9 @@ csemi5(_, _) -> error. csemi6(A, B) when hd([tuple_size(A)]) > 1; abs(B) > 2 -> ok; csemi6(_, _) -> error. +csemi7(A, B, C) when A#{a:=B} > #{a=>1}; abs(C) > 2 -> ok; +csemi7(_, _, _) -> error. + comma(Config) when is_list(Config) -> %% ',' combinations of literal true/false. @@ -1122,6 +1134,231 @@ rel_ops(Config) when is_list(Config) -> -undef(TestOp). +rel_op_combinations(Config) when is_list(Config) -> + Digits0 = lists:seq(16#0030, 16#0039) ++ + lists:seq(16#0660, 16#0669) ++ + lists:seq(16#06F0, 16#06F9), + Digits = gb_sets:from_list(Digits0), + rel_op_combinations_1(16#0700, Digits), + + BrokenRange0 = lists:seq(3, 5) ++ + lists:seq(10, 12) ++ lists:seq(14, 20), + BrokenRange = gb_sets:from_list(BrokenRange0), + rel_op_combinations_2(30, BrokenRange), + + Red0 = [{I,2*I} || I <- lists:seq(0, 50)] ++ + [{I,5*I} || I <- lists:seq(51, 80)], + Red = gb_trees:from_orddict(Red0), + rel_op_combinations_3(100, Red). + +rel_op_combinations_1(0, _) -> + ok; +rel_op_combinations_1(N, Digits) -> + Bool = gb_sets:is_member(N, Digits), + Bool = is_digit_1(N), + Bool = is_digit_2(N), + Bool = is_digit_3(N), + Bool = is_digit_4(N), + Bool = is_digit_5(N), + Bool = is_digit_6(N), + Bool = is_digit_7(N), + Bool = is_digit_8(N), + rel_op_combinations_1(N-1, Digits). + +is_digit_1(X) when 16#0660 =< X, X =< 16#0669 -> true; +is_digit_1(X) when 16#0030 =< X, X =< 16#0039 -> true; +is_digit_1(X) when 16#06F0 =< X, X =< 16#06F9 -> true; +is_digit_1(_) -> false. + +is_digit_2(X) when (16#0030-1) < X, X =< 16#0039 -> true; +is_digit_2(X) when (16#0660-1) < X, X =< 16#0669 -> true; +is_digit_2(X) when (16#06F0-1) < X, X =< 16#06F9 -> true; +is_digit_2(_) -> false. + +is_digit_3(X) when 16#0660 =< X, X < (16#0669+1) -> true; +is_digit_3(X) when 16#0030 =< X, X < (16#0039+1) -> true; +is_digit_3(X) when 16#06F0 =< X, X < (16#06F9+1) -> true; +is_digit_3(_) -> false. + +is_digit_4(X) when (16#0660-1) < X, X < (16#0669+1) -> true; +is_digit_4(X) when (16#0030-1) < X, X < (16#0039+1) -> true; +is_digit_4(X) when (16#06F0-1) < X, X < (16#06F9+1) -> true; +is_digit_4(_) -> false. + +is_digit_5(X) when X >= 16#0660, X =< 16#0669 -> true; +is_digit_5(X) when X >= 16#0030, X =< 16#0039 -> true; +is_digit_5(X) when X >= 16#06F0, X =< 16#06F9 -> true; +is_digit_5(_) -> false. + +is_digit_6(X) when X > (16#0660-1), X =< 16#0669 -> true; +is_digit_6(X) when X > (16#0030-1), X =< 16#0039 -> true; +is_digit_6(X) when X > (16#06F0-1), X =< 16#06F9 -> true; +is_digit_6(_) -> false. + +is_digit_7(X) when 16#0660 =< X, X =< 16#0669 -> true; +is_digit_7(X) when 16#0030 =< X, X =< 16#003A, X =/= 16#003A -> true; +is_digit_7(X) when 16#06F0 =< X, X =< 16#06F9 -> true; +is_digit_7(_) -> false. + +is_digit_8(X) when X =< 16#0039, X > (16#0030-1) -> true; +is_digit_8(X) when X =< 16#06F9, X > (16#06F0-1) -> true; +is_digit_8(X) when X =< 16#0669, X > (16#0660-1) -> true; +is_digit_8(16#0670) -> false; +is_digit_8(_) -> false. + +rel_op_combinations_2(0, _) -> + ok; +rel_op_combinations_2(N, Range) -> + Bool = gb_sets:is_member(N, Range), + Bool = broken_range_1(N), + Bool = broken_range_2(N), + Bool = broken_range_3(N), + Bool = broken_range_4(N), + Bool = broken_range_5(N), + Bool = broken_range_6(N), + Bool = broken_range_7(N), + Bool = broken_range_8(N), + Bool = broken_range_9(N), + Bool = broken_range_10(N), + Bool = broken_range_11(N), + Bool = broken_range_12(N), + Bool = broken_range_13(N), + rel_op_combinations_2(N-1, Range). + +broken_range_1(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_1(X) when X >= 3, X =< 5 -> true; +broken_range_1(_) -> false. + +broken_range_2(X) when X >= 10, X =< 12 -> true; +broken_range_2(X) when X >= 14, X =< 20 -> true; +broken_range_2(X) when X >= 3, X =< 5 -> true; +broken_range_2(_) -> false. + +broken_range_3(X) when X >= 10, X =< 12 -> true; +broken_range_3(X) when X >= 14, X < 21 -> true; +broken_range_3(3) -> true; +broken_range_3(4) -> true; +broken_range_3(5) -> true; +broken_range_3(_) -> false. + +broken_range_4(X) when X =< 5, X >= 3 -> true; +broken_range_4(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_4(X) when X =< 100 -> false; +broken_range_4(_) -> false. + +broken_range_5(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_5(X) when X > 2, X =< 5 -> true; +broken_range_5(_) -> false. + +broken_range_6(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_6(X) when X > 2, X < 6 -> true; +broken_range_6(_) -> false. + +broken_range_7(X) when X > 2, X < 6 -> true; +broken_range_7(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_7(X) when X > 30 -> false; +broken_range_7(_) -> false. + +broken_range_8(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_8(X) when X =:= 3 -> true; +broken_range_8(X) when X >= 3, X =< 5 -> true; +broken_range_8(_) -> false. + +broken_range_9(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_9(X) when X =:= 13 -> false; +broken_range_9(X) when X >= 3, X =< 5 -> true; +broken_range_9(_) -> false. + +broken_range_10(X) when X >= 3, X =< 5 -> true; +broken_range_10(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_10(X) when X =/= 13 -> false; +broken_range_10(_) -> false. + +broken_range_11(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_11(X) when is_tuple(X), X =:= 10 -> true; +broken_range_11(X) when X >= 3, X =< 5 -> true; +broken_range_11(_) -> false. + +broken_range_12(X) when X >= 3, X =< 5 -> true; +broken_range_12(X) when X >= 10, X =< 20, X =/= 13 -> true; +broken_range_12(X) when X < 30, X > 20 -> false; +broken_range_12(_) -> false. + +broken_range_13(X) when X >= 10, X =< 20, 13 =/= X -> true; +broken_range_13(X) when X >= 3, X =< 5 -> true; +broken_range_13(_) -> false. + +rel_op_combinations_3(0, _) -> + ok; +rel_op_combinations_3(N, Red) -> + Val = case gb_trees:lookup(N, Red) of + none -> none; + {value,V} -> V + end, + Val = redundant_1(N), + Val = redundant_2(N), + Val = redundant_3(N), + Val = redundant_4(N), + Val = redundant_5(N), + Val = redundant_6(N), + Val = redundant_7(N), + Val = redundant_8(N), + Val = redundant_9(N), + Val = redundant_10(N), + Val = redundant_11(N), + rel_op_combinations_3(N-1, Red). + +redundant_1(X) when X >= 51, X =< 80 -> 5*X; +redundant_1(X) when X < 51 -> 2*X; +redundant_1(_) -> none. + +redundant_2(X) when X < 51 -> 2*X; +redundant_2(X) when X >= 51, X =< 80 -> 5*X; +redundant_2(_) -> none. + +redundant_3(X) when X < 51 -> 2*X; +redundant_3(X) when X =< 80, X >= 51 -> 5*X; +redundant_3(X) when X =/= 100 -> none; +redundant_3(_) -> none. + +redundant_4(X) when X < 51 -> 2*X; +redundant_4(X) when X =< 80, X > 50 -> 5*X; +redundant_4(X) when X =/= 100 -> none; +redundant_4(_) -> none. + +redundant_5(X) when X < 51 -> 2*X; +redundant_5(X) when X > 50, X < 81 -> 5*X; +redundant_5(X) when X =< 10 -> none; +redundant_5(_) -> none. + +redundant_6(X) when X > 50, X =< 80 -> 5*X; +redundant_6(X) when X < 51 -> 2*X; +redundant_6(_) -> none. + +redundant_7(X) when is_integer(X), X >= 51, X =< 80 -> 5*X; +redundant_7(X) when is_integer(X), X < 51 -> 2*X; +redundant_7(_) -> none. + +redundant_8(X) when X >= 51, X =< 80 -> 5*X; +redundant_8(X) when X < 51 -> 2*X; +redundant_8(_) -> none. + +redundant_9(X) when X >= 51, X =< 80 -> 5*X; +redundant_9(X) when X < 51 -> 2*X; +redundant_9(90) -> none; +redundant_9(X) when X =/= 90 -> none; +redundant_9(_) -> none. + +redundant_10(X) when X >= 51, X =< 80 -> 5*X; +redundant_10(X) when X < 51 -> 2*X; +redundant_10(90) -> none; +redundant_10(X) when X =:= 90 -> none; +redundant_10(_) -> none. + +redundant_11(X) when X < 51 -> 2*X; +redundant_11(X) when X =:= 10 -> 2*X; +redundant_11(X) when X >= 51, X =< 80 -> 5*X; +redundant_11(_) -> none. %% Test type tests on literal values. (From emulator test suites.) literal_type_tests(Config) when is_list(Config) -> @@ -1556,6 +1793,36 @@ bad_constants(Config) when is_list(Config) -> bad_guards(Config) when is_list(Config) -> if erlang:float(self()); true -> ok end, + + fc(catch bad_guards_1(1, [])), + fc(catch bad_guards_1(1, [2])), + fc(catch bad_guards_1(atom, [2])), + + fc(catch bad_guards_2(#{a=>0,b=>0}, [])), + fc(catch bad_guards_2(#{a=>0,b=>0}, [x])), + fc(catch bad_guards_2(not_a_map, [x])), + fc(catch bad_guards_2(42, [x])), + + fc(catch bad_guards_3(#{a=>0,b=>0}, [])), + fc(catch bad_guards_3(#{a=>0,b=>0}, [x])), + fc(catch bad_guards_3(not_a_map, [x])), + fc(catch bad_guards_3(42, [x])), + + ok. + +%% beam_bool used to produce GC BIF instructions whose +%% Live operands included uninitialized registers. + +bad_guards_1(X, [_]) when {{X}}, -X -> + ok. + +bad_guards_2(M, [_]) when M#{a := 0, b => 0}, map_size(M) -> + ok. + +%% beam_type used to produce an GC BIF instruction whose Live operand +%% included uninitialized registers. + +bad_guards_3(M, [_]) when is_map(M) andalso M#{a := 0, b => 0}, length(M) -> ok. %% Call this function to turn off constant propagation. diff --git a/lib/compiler/test/lc_SUITE.erl b/lib/compiler/test/lc_SUITE.erl index 398398a397..62bada1407 100644 --- a/lib/compiler/test/lc_SUITE.erl +++ b/lib/compiler/test/lc_SUITE.erl @@ -18,12 +18,12 @@ %% -module(lc_SUITE). --author('[email protected]'). -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2, init_per_testcase/2,end_per_testcase/2, basic/1,deeply_nested/1,no_generator/1, - empty_generator/1,no_export/1]). + empty_generator/1,no_export/1,shadow/1, + effect/1]). -include_lib("test_server/include/test_server.hrl"). @@ -31,10 +31,18 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> test_lib:recompile(?MODULE), - [basic, deeply_nested, no_generator, empty_generator, no_export]. + [{group,p}]. groups() -> - []. + [{p,test_lib:parallel(), + [basic, + deeply_nested, + no_generator, + empty_generator, + no_export, + shadow, + effect + ]}]. init_per_suite(Config) -> Config. @@ -59,34 +67,34 @@ end_per_testcase(Case, Config) when is_atom(Case), is_list(Config) -> ok. basic(Config) when is_list(Config) -> - ?line L0 = lists:seq(1, 10), - ?line L1 = my_map(fun(X) -> {x,X} end, L0), - ?line L1 = [{x,X} || X <- L0], - ?line L0 = my_map(fun({x,X}) -> X end, L1), - ?line [1,2,3,4,5] = [X || X <- L0, X < 6], - ?line [4,5,6] = [X || X <- L0, X > 3, X < 7], - ?line [] = [X || X <- L0, X > 32, X < 7], - ?line [1,3,5,7,9] = [X || X <- L0, odd(X)], - ?line [2,4,6,8,10] = [X || X <- L0, not odd(X)], - ?line [1,3,5,9] = [X || X <- L0, odd(X), X =/= 7], - ?line [2,4,8,10] = [X || X <- L0, not odd(X), X =/= 6], + L0 = lists:seq(1, 10), + L1 = my_map(fun(X) -> {x,X} end, L0), + L1 = [{x,X} || X <- L0], + L0 = my_map(fun({x,X}) -> X end, L1), + [1,2,3,4,5] = [X || X <- L0, X < 6], + [4,5,6] = [X || X <- L0, X > 3, X < 7], + [] = [X || X <- L0, X > 32, X < 7], + [1,3,5,7,9] = [X || X <- L0, odd(X)], + [2,4,6,8,10] = [X || X <- L0, not odd(X)], + [1,3,5,9] = [X || X <- L0, odd(X), X =/= 7], + [2,4,8,10] = [X || X <- L0, not odd(X), X =/= 6], %% Append is specially handled. - ?line [1,3,5,9,2,4,8,10] = [X || X <- L0, odd(X), X =/= 7] ++ + [1,3,5,9,2,4,8,10] = [X || X <- L0, odd(X), X =/= 7] ++ [X || X <- L0, not odd(X), X =/= 6], %% Guards BIFs are evaluated in guard context. Weird, but true. - ?line [{a,b,true},{x,y,true,true}] = [X || X <- tuple_list(), element(3, X)], + [{a,b,true},{x,y,true,true}] = [X || X <- tuple_list(), element(3, X)], %% Filter expressions with andalso/orelse. - ?line "abc123" = alphanum("?abc123.;"), + "abc123" = alphanum("?abc123.;"), %% Error cases. - ?line [] = [{xx,X} || X <- L0, element(2, X) == no_no_no], - ?line {'EXIT',_} = (catch [X || X <- L1, list_to_atom(X) == dum]), - ?line [] = [X || X <- L1, X+1 < 2], - ?line {'EXIT',_} = (catch [X || X <- L1, odd(X)]), - ?line fc([x], catch [E || E <- id(x)]), + [] = [{xx,X} || X <- L0, element(2, X) == no_no_no], + {'EXIT',_} = (catch [X || X <- L1, list_to_atom(X) == dum]), + [] = [X || X <- L1, X+1 < 2], + {'EXIT',_} = (catch [X || X <- L1, odd(X)]), + fc([x], catch [E || E <- id(x)]), ok. tuple_list() -> @@ -116,12 +124,12 @@ deeply_nested_1() -> X16 <- [4],X17 <- [3],X18 <- [fun() -> X16+X17 end],X19 <- [2],X20 <- [1]]. no_generator(Config) when is_list(Config) -> - ?line Seq = lists:seq(-10, 17), - ?line [no_gen_verify(no_gen(A, B), A, B) || A <- Seq, B <- Seq], + Seq = lists:seq(-10, 17), + [no_gen_verify(no_gen(A, B), A, B) || A <- Seq, B <- Seq], %% Literal expression, for coverage. - ?line [a] = [a || true], - ?line [a,b,c] = [a || true] ++ [b,c], + [a] = [a || true], + [a,b,c] = [a || true] ++ [b,c], ok. no_gen(A, B) -> @@ -174,13 +182,51 @@ no_gen_eval(Fun, Res) -> no_gen_one_more(A, B) -> A + 1 =:= B. empty_generator(Config) when is_list(Config) -> - ?line [] = [X || {X} <- [], (false or (X/0 > 3))], + [] = [X || {X} <- [], (false or (X/0 > 3))], ok. no_export(Config) when is_list(Config) -> [] = [ _X = a || false ] ++ [ _X = a || false ], ok. +%% Test that variables in list comprehensions are +%% correctly shadowed. + +shadow(Config) when is_list(Config) -> + Shadowed = nomatch, + _ = id(Shadowed), %Eliminate warning. + L = [{Shadowed,Shadowed+1} || Shadowed <- lists:seq(7, 9)], + [{7,8},{8,9},{9,10}] = id(L), + [8,9] = id([Shadowed || {_,Shadowed} <- id(L), + Shadowed < 10]), + ok. + +effect(Config) when is_list(Config) -> + [{42,{a,b,c}}] = + do_effect(fun(F, L) -> + [F({V1,V2}) || + #{<<1:500>>:=V1,<<2:301>>:=V2} <- L], + ok + end, id([#{},x,#{<<1:500>>=>42,<<2:301>>=>{a,b,c}}])), + + %% Will trigger the time-trap timeout if not tail-recursive. + case ?MODULE of + lc_SUITE -> + _ = [{'EXIT',{badarg,_}} = + (catch binary_to_atom(<<C/utf8>>, utf8)) || + C <- lists:seq(16#10000, 16#FFFFF)]; + _ -> + ok + end, + + ok. + +do_effect(Lc, L) -> + put(?MODULE, []), + F = fun(V) -> put(?MODULE, [V|get(?MODULE)]) end, + ok = Lc(F, L), + lists:reverse(erase(?MODULE)). + id(I) -> I. fc(Args, {'EXIT',{function_clause,[{?MODULE,_,Args,_}|_]}}) -> ok; diff --git a/lib/compiler/test/map_SUITE.erl b/lib/compiler/test/map_SUITE.erl index 75efce9d7b..cfa8262701 100644 --- a/lib/compiler/test/map_SUITE.erl +++ b/lib/compiler/test/map_SUITE.erl @@ -61,7 +61,9 @@ suite() -> []. -all() -> [ +all() -> + test_lib:recompile(?MODULE), + [ %% literals t_build_and_match_literals, t_update_literals, t_match_and_update_literals, @@ -317,6 +319,12 @@ t_update_exact(Config) when is_list(Config) -> {'EXIT',{badarg,_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}), {'EXIT',{badarg,_}} = (catch <<>>#{nonexisting:=val}), {'EXIT',{badarg,_}} = (catch M0#{<<0:257>> := val}), %% limitation + + %% A workaround for a bug allowed an empty map to be updated. + {'EXIT',{badarg,_}} = (catch (id(#{}))#{a:=1}), + {'EXIT',{badarg,_}} = (catch #{}#{a:=1}), + Empty = #{}, + {'EXIT',{badarg,_}} = (catch Empty#{a:=1}), ok. t_update_values(Config) when is_list(Config) -> @@ -633,6 +641,7 @@ t_build_and_match_nil(Config) when is_list(Config) -> "treat" => V2, [] => V1 }), #{ [] := V3, [] := V3 } = id(#{ [] => V1, [] => V3 }), + #{ <<1>> := V3, [] := V1 } = id(#{ [] => V1, <<1>> => V3 }), ok. t_build_and_match_structure(Config) when is_list(Config) -> diff --git a/lib/compiler/test/match_SUITE.erl b/lib/compiler/test/match_SUITE.erl index ae7d764535..7522ee985f 100644 --- a/lib/compiler/test/match_SUITE.erl +++ b/lib/compiler/test/match_SUITE.erl @@ -22,7 +22,8 @@ init_per_group/2,end_per_group/2, pmatch/1,mixed/1,aliases/1,match_in_call/1, untuplify/1,shortcut_boolean/1,letify_guard/1, - selectify/1,underscore/1,coverage/1]). + selectify/1,underscore/1,match_map/1,map_vars_used/1, + coverage/1]). -include_lib("test_server/include/test_server.hrl"). @@ -33,9 +34,10 @@ all() -> [{group,p}]. groups() -> - [{p,test_lib:parallel(), + [{p,[parallel], [pmatch,mixed,aliases,match_in_call,untuplify, - shortcut_boolean,letify_guard,selectify,underscore,coverage]}]. + shortcut_boolean,letify_guard,selectify, + underscore,match_map,map_vars_used,coverage]}]. init_per_suite(Config) -> @@ -400,6 +402,36 @@ underscore(Config) when is_list(Config) -> _ = is_list(Config), ok. +-record(s, {map,t}). + +match_map(Config) when is_list(Config) -> + Map = #{key=>{x,y},ignore=>anything}, + #s{map=Map,t={x,y}} = do_match_map(#s{map=Map}), + {a,#{k:={a,b,c}}} = do_match_map_2(#{k=>{a,b,c}}), + ok. + +do_match_map(#s{map=#{key:=Val}}=S) -> + %% Would crash with a 'badarg' exception. + S#s{t=Val}. + +do_match_map_2(Map) -> + case {a,Map} of + {a,#{k:=_}}=Tuple -> + Tuple + end. + +map_vars_used(Config) when is_list(Config) -> + {some,value} = do_map_vars_used(a, b, #{{a,b}=>42,v=>{some,value}}), + ok. + +do_map_vars_used(X, Y, Map) -> + case {X,Y} of + T -> + %% core_lib:is_var_used/2 would not consider T used. + #{T:=42,v:=Val} = Map, + Val + end. + coverage(Config) when is_list(Config) -> %% Cover beam_dead. ok = coverage_1(x, a), diff --git a/lib/compiler/test/misc_SUITE.erl b/lib/compiler/test/misc_SUITE.erl index 44c7161530..68a31f14d5 100644 --- a/lib/compiler/test/misc_SUITE.erl +++ b/lib/compiler/test/misc_SUITE.erl @@ -60,7 +60,7 @@ all() -> [{group,p}]. groups() -> - [{p,[],%%test_lib:parallel(), + [{p,[], [tobias,empty_string,md5,silly_coverage, confused_literals,integer_encoding,override_bif]}]. @@ -225,14 +225,15 @@ silly_coverage(Config) when is_list(Config) -> {label,2}|non_proper_list]}],99}, ?line expect_error(fun() -> beam_bool:module(BoolInput, []) end), - %% beam_dead + %% beam_dead. This is tricky. Our function must look OK to + %% beam_utils:clean_labels/1, but must crash beam_dead. DeadInput = {?MODULE,[{foo,0}],[], [{function,foo,0,2, [{label,1}, {func_info,{atom,?MODULE},{atom,foo},0}, {label,2}, - {jump,bad}]}],99}, - ?line expect_error(fun() -> beam_block:module(DeadInput, []) end), + {test,is_eq_exact,{f,1},[bad,operands]}]}],99}, + expect_error(fun() -> beam_dead:module(DeadInput, []) end), %% beam_clean CleanInput = {?MODULE,[{foo,0}],[], @@ -279,6 +280,14 @@ silly_coverage(Config) when is_list(Config) -> {label,2}|non_proper_list]}],99}, expect_error(fun() -> beam_z:module(BeamZInput, []) end), + %% beam_validator. + BeamValInput = {?MODULE,[{foo,0}],[], + [{function,foo,0,2, + [{label,1}, + {func_info,{atom,?MODULE},{atom,foo},0}, + {label,2}|non_proper_list]}],99}, + expect_error(fun() -> beam_validator:module(BeamValInput, []) end), + ok. expect_error(Fun) -> diff --git a/lib/compiler/test/receive_SUITE.erl b/lib/compiler/test/receive_SUITE.erl index 00a6e900d4..fb82bf6101 100644 --- a/lib/compiler/test/receive_SUITE.erl +++ b/lib/compiler/test/receive_SUITE.erl @@ -187,12 +187,13 @@ ref_opt(Config) when is_list(Config) -> end. ref_opt_1(Config) -> - ?line DataDir = ?config(data_dir, Config), - ?line PrivDir = ?config(priv_dir, Config), + DataDir = ?config(data_dir, Config), + PrivDir = ?config(priv_dir, Config), Sources = filelib:wildcard(filename:join([DataDir,"ref_opt","*.{erl,S}"])), - ?line test_lib:p_run(fun(Src) -> - do_ref_opt(Src, PrivDir) - end, Sources), + test_lib:p_run(fun(Src) -> + do_ref_opt(Src, PrivDir) + end, Sources), + cover_recv_instructions(), ok. do_ref_opt(Source, PrivDir) -> @@ -202,9 +203,9 @@ do_ref_opt(Source, PrivDir) -> {outdir,PrivDir}] ++ [from_asm || Ext =:= ".S" ]), Base = filename:rootname(filename:basename(Source), Ext), - code:purge(list_to_atom(Base)), - BeamFile = filename:join(PrivDir, Base), - code:load_abs(BeamFile), + code:purge(list_to_atom(Base)), + BeamFile = filename:join(PrivDir, Base), + code:load_abs(BeamFile), ok = Mod:Mod(), {beam_file,Mod,_,_,_,Code} = beam_disasm:file(BeamFile), case Base of @@ -232,6 +233,27 @@ collect_recv_opt_instrs(Code) -> end] || {function,_,_,_,Is} <- Code], lists:append(L). +cover_recv_instructions() -> + %% We want to cover the handling of recv_mark and recv_set in beam_utils. + %% Since those instructions are introduced in a late optimization pass, + %% beam_utils:live_opt() will not see them unless the compilation is + %% started from a .S file. The compile_SUITE:asm/1 test case will + %% compile all test suite files to .S and then run them through the + %% compiler again. + %% + %% Here will we will ensure that this modules contains recv_mark + %% and recv_set instructions. + Pid = spawn_link(fun() -> + receive {Parent,Ref} -> + Parent ! Ref + end + end), + Ref = make_ref(), + Pid ! {self(),Ref}, + receive + Ref -> ok + end. + export(Config) when is_list(Config) -> Ref = make_ref(), ?line self() ! {result,Ref,42}, diff --git a/lib/compiler/test/record_SUITE.erl b/lib/compiler/test/record_SUITE.erl index f736e14bf6..8cc90026ec 100644 --- a/lib/compiler/test/record_SUITE.erl +++ b/lib/compiler/test/record_SUITE.erl @@ -246,6 +246,14 @@ record_test_2(Config) when is_list(Config) -> ?line Barf = update_barf(Barf0), ?line #barf{a="abc",b=1} = id(Barf), + %% Test optimization of is_record/3. + false = case id({a,b}) of + {_,_}=Tuple -> is_record(Tuple, foo) + end, + false = case id(true) of + true=Bool -> is_record(Bool, foo) + end, + ok. record_test_3(Config) when is_list(Config) -> diff --git a/lib/compiler/test/test_lib.erl b/lib/compiler/test/test_lib.erl index a8befbecd9..a5e2855f8c 100644 --- a/lib/compiler/test/test_lib.erl +++ b/lib/compiler/test/test_lib.erl @@ -18,11 +18,13 @@ %% -module(test_lib). --include("test_server.hrl"). +-include_lib("test_server/include/test_server.hrl"). -compile({no_auto_import,[binary_part/2]}). --export([recompile/1,parallel/0,uniq/0,opt_opts/1,get_data_dir/1, +-export([id/1,recompile/1,parallel/0,uniq/0,opt_opts/1,get_data_dir/1, smoke_disasm/1,p_run/2,binary_part/2]). +id(I) -> I. + recompile(Mod) when is_atom(Mod) -> case whereis(cover_server) of undefined -> ok; @@ -44,6 +46,10 @@ smoke_disasm(File) when is_list(File) -> Res = beam_disasm:file(File), {beam_file,_Mod} = {element(1, Res),element(2, Res)}. +%% If we are running cover, we don't want to run test cases that +%% invokes the compiler in parallel, as doing so would probably +%% be slower than running them sequentially. + parallel() -> case ?t:is_cover() orelse erlang:system_info(schedulers) =:= 1 of true -> []; @@ -90,13 +96,18 @@ get_data_dir(Config) -> %% Will fail the test case if there were any errors. p_run(Test, List) -> + S = erlang:system_info(schedulers), N = case ?t:is_cover() of false -> - erlang:system_info(schedulers); + S + 1; true -> - %% Cover is running. Using more than one process - %% will probably only slow down compilation. - 1 + %% Cover is running. Using too many processes + %% could slow us down. Measurements on my computer + %% showed that using 4 parallel processes was + %% slightly faster than using 3. Using more than + %% 4 would not buy us much and could actually be + %% slower. + max(S, 4) end, p_run_loop(Test, List, N, [], 0, 0). diff --git a/lib/compiler/test/trycatch_SUITE.erl b/lib/compiler/test/trycatch_SUITE.erl index 4530d08c77..80d93fbfa4 100644 --- a/lib/compiler/test/trycatch_SUITE.erl +++ b/lib/compiler/test/trycatch_SUITE.erl @@ -24,7 +24,8 @@ catch_oops/1,after_oops/1,eclectic/1,rethrow/1, nested_of/1,nested_catch/1,nested_after/1, nested_horrid/1,last_call_optimization/1,bool/1, - plain_catch_coverage/1,andalso_orelse/1,get_in_try/1]). + plain_catch_coverage/1,andalso_orelse/1,get_in_try/1, + hockey/1]). -include_lib("test_server/include/test_server.hrl"). @@ -35,11 +36,12 @@ all() -> [{group,p}]. groups() -> - [{p,test_lib:parallel(), + [{p,[parallel], [basic,lean_throw,try_of,try_after,catch_oops, after_oops,eclectic,rethrow,nested_of,nested_catch, nested_after,nested_horrid,last_call_optimization, - bool,plain_catch_coverage,andalso_orelse,get_in_try]}]. + bool,plain_catch_coverage,andalso_orelse,get_in_try, + hockey]}]. init_per_suite(Config) -> @@ -790,7 +792,6 @@ nested_after_1({X1,C1,V1}, nested_horrid(Config) when is_list(Config) -> - _V = {make_ref(),nested_horrid,4.711}, {[true,true],{[true,1.0],1.0}} = nested_horrid_1({true,void,void}, 1.0), ok. @@ -944,3 +945,14 @@ get_valid_line([_|T]=Path, Annotations) -> _:not_found -> get_valid_line(T, Annotations) end. + +hockey(_) -> + {'EXIT',{{badmatch,_},[_|_]}} = (catch hockey()), + ok. + +hockey() -> + %% beam_jump used to generate a call into the try block. + %% beam_validator disapproved. + receive _ -> (b = fun() -> ok end) + + hockey, +x after 0 -> ok end, try (a = fun() -> ok end) + hockey, + + y catch _ -> ok end. diff --git a/lib/compiler/test/warnings_SUITE.erl b/lib/compiler/test/warnings_SUITE.erl index be0348a92d..dcd3910926 100644 --- a/lib/compiler/test/warnings_SUITE.erl +++ b/lib/compiler/test/warnings_SUITE.erl @@ -39,7 +39,7 @@ guard/1,bad_arith/1,bool_cases/1,bad_apply/1, files/1,effect/1,bin_opt_info/1,bin_construction/1, comprehensions/1,maps/1,redundant_boolean_clauses/1, - latin1_fallback/1]). + latin1_fallback/1,underscore/1]). % Default timetrap timeout (set in init_per_testcase). -define(default_timeout, ?t:minutes(2)). @@ -64,7 +64,8 @@ groups() -> [pattern,pattern2,pattern3,pattern4,guard, bad_arith,bool_cases,bad_apply,files,effect, bin_opt_info,bin_construction,comprehensions,maps, - redundant_boolean_clauses,latin1_fallback]}]. + redundant_boolean_clauses,latin1_fallback, + underscore]}]. init_per_suite(Config) -> Config. @@ -280,11 +281,12 @@ bad_arith(Config) when is_list(Config) -> {3,sys_core_fold,{eval_failure,badarith}}, {9,sys_core_fold,nomatch_guard}, {9,sys_core_fold,{eval_failure,badarith}}, + {9,sys_core_fold,{no_effect,{erlang,is_integer,1}}}, {10,sys_core_fold,nomatch_guard}, {10,sys_core_fold,{eval_failure,badarith}}, {15,sys_core_fold,{eval_failure,badarith}} ] }}], - ?line [] = run(Config, Ts), + [] = run(Config, Ts), ok. bool_cases(Config) when is_list(Config) -> @@ -578,11 +580,11 @@ maps(Config) when is_list(Config) -> <<" t() -> M = {a,[]}, - {'EXIT',{badarg,_}} = (catch(M#{ a => 1})), + {'EXIT',{badarg,_}} = (catch(M#{ a => 1 })), ok. ">>, [], - {warnings,[{4,v3_kernel,bad_map}]}}, + {warnings,[{4,sys_core_fold,{eval_failure,badarg}}]}}, {bad_map_src2, <<" t() -> @@ -592,7 +594,7 @@ maps(Config) when is_list(Config) -> id(I) -> I. ">>, [inline], - {warnings,[{4,v3_kernel,bad_map}]}}, + []}, {bad_map_src3, <<" t() -> @@ -678,6 +680,45 @@ latin1_fallback(Conf) when is_list(Conf) -> ok. +underscore(Config) when is_list(Config) -> + S0 = <<"f(A) -> + _VAR1 = <<A>>, + _VAR2 = {ok,A}, + _VAR3 = [A], + ok. + g(A) -> + _VAR1 = A/0, + _VAR2 = date(), + ok. + h() -> + _VAR1 = fun() -> ok end, + ok. + i(A) -> + _VAR1 = #{A=>42}, + ok. + ">>, + Ts0 = [{underscore0, + S0, + [], + {warnings,[{2,sys_core_fold,useless_building}, + {3,sys_core_fold,useless_building}, + {4,sys_core_fold,useless_building}, + {7,sys_core_fold,result_ignored}, + {8,sys_core_fold,{no_effect,{erlang,date,0}}}, + {11,sys_core_fold,useless_building}, + {14,sys_core_fold,useless_building} + ]}}], + [] = run(Config, Ts0), + + %% Replace all "_VAR<digit>" variables with a plain underscore. + %% Now there should be no warnings. + S1 = re:replace(S0, "_VAR\\d+", "_", [global]), + io:format("~s\n", [S1]), + Ts1 = [{underscore1,S1,[],[]}], + [] = run(Config, Ts1), + + ok. + %%% %%% End of test cases. %%% @@ -699,10 +740,10 @@ run(Config, Tests) -> %% Compiles a test module and returns the list of errors and warnings. run_test(Conf, Test0, Warnings) -> - Mod = "warnings_"++test_lib:uniq(), - Filename = Mod ++ ".erl", + Module = "warnings_"++test_lib:uniq(), + Filename = Module ++ ".erl", ?line DataDir = ?privdir, - Test = ["-module(", Mod, "). ", Test0], + Test = ["-module(", Module, "). ", Test0], ?line File = filename:join(DataDir, Filename), ?line Opts = [binary,export_all,return|Warnings], ?line ok = file:write_file(File, Test), |