aboutsummaryrefslogtreecommitdiffstats
path: root/lib/compiler/src
diff options
context:
space:
mode:
Diffstat (limited to 'lib/compiler/src')
-rw-r--r--lib/compiler/src/Makefile2
-rw-r--r--lib/compiler/src/beam_a.erl2
-rw-r--r--lib/compiler/src/beam_asm.erl8
-rw-r--r--lib/compiler/src/beam_block.erl16
-rw-r--r--lib/compiler/src/beam_bool.erl2
-rw-r--r--lib/compiler/src/beam_bs.erl2
-rw-r--r--lib/compiler/src/beam_bsm.erl7
-rw-r--r--lib/compiler/src/beam_clean.erl2
-rw-r--r--lib/compiler/src/beam_dead.erl2
-rw-r--r--lib/compiler/src/beam_dict.erl2
-rw-r--r--lib/compiler/src/beam_disasm.erl2
-rw-r--r--lib/compiler/src/beam_disasm.hrl2
-rw-r--r--lib/compiler/src/beam_except.erl2
-rw-r--r--lib/compiler/src/beam_flatten.erl2
-rw-r--r--lib/compiler/src/beam_jump.erl2
-rw-r--r--lib/compiler/src/beam_listing.erl2
-rw-r--r--lib/compiler/src/beam_peep.erl2
-rw-r--r--lib/compiler/src/beam_receive.erl2
-rw-r--r--lib/compiler/src/beam_reorder.erl2
-rw-r--r--lib/compiler/src/beam_split.erl4
-rw-r--r--lib/compiler/src/beam_trim.erl2
-rw-r--r--lib/compiler/src/beam_type.erl2
-rw-r--r--lib/compiler/src/beam_utils.erl2
-rw-r--r--lib/compiler/src/beam_validator.erl5
-rw-r--r--lib/compiler/src/beam_z.erl14
-rw-r--r--lib/compiler/src/cerl.erl2
-rw-r--r--lib/compiler/src/cerl_clauses.erl2
-rw-r--r--lib/compiler/src/cerl_inline.erl2
-rw-r--r--lib/compiler/src/cerl_trees.erl225
-rw-r--r--lib/compiler/src/compile.erl63
-rw-r--r--lib/compiler/src/compiler.app.src2
-rw-r--r--lib/compiler/src/compiler.appup.src2
-rw-r--r--lib/compiler/src/core_lib.erl2
-rw-r--r--lib/compiler/src/core_parse.hrl2
-rw-r--r--lib/compiler/src/core_parse.yrl2
-rw-r--r--lib/compiler/src/core_pp.erl2
-rw-r--r--lib/compiler/src/core_scan.erl2
-rw-r--r--lib/compiler/src/erl_bifs.erl2
-rwxr-xr-xlib/compiler/src/genop.tab2
-rw-r--r--lib/compiler/src/rec_env.erl2
-rw-r--r--lib/compiler/src/sys_core_dsetel.erl2
-rw-r--r--lib/compiler/src/sys_core_fold.erl246
-rw-r--r--lib/compiler/src/sys_core_inline.erl2
-rw-r--r--lib/compiler/src/sys_pre_attributes.erl2
-rw-r--r--lib/compiler/src/v3_codegen.erl2
-rw-r--r--lib/compiler/src/v3_core.erl92
-rw-r--r--lib/compiler/src/v3_kernel.erl4
-rw-r--r--lib/compiler/src/v3_kernel.hrl2
-rw-r--r--lib/compiler/src/v3_kernel_pp.erl2
-rw-r--r--lib/compiler/src/v3_life.erl2
-rw-r--r--lib/compiler/src/v3_life.hrl2
51 files changed, 535 insertions, 229 deletions
diff --git a/lib/compiler/src/Makefile b/lib/compiler/src/Makefile
index f75beaba20..518c89d044 100644
--- a/lib/compiler/src/Makefile
+++ b/lib/compiler/src/Makefile
@@ -1,7 +1,7 @@
#
# %CopyrightBegin%
#
-# Copyright Ericsson AB 1996-2013. All Rights Reserved.
+# Copyright Ericsson AB 1996-2016. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_a.erl b/lib/compiler/src/beam_a.erl
index f0f2ee08c2..91e6d80da3 100644
--- a/lib/compiler/src/beam_a.erl
+++ b/lib/compiler/src/beam_a.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2012-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2012-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_asm.erl b/lib/compiler/src/beam_asm.erl
index 95be471de3..9a81537006 100644
--- a/lib/compiler/src/beam_asm.erl
+++ b/lib/compiler/src/beam_asm.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -225,10 +225,14 @@ flatten_imports(Imps) ->
list_to_binary(map(fun({M,F,A}) -> <<M:32,F:32,A:32>> end, Imps)).
build_attributes(Opts, SourceFile, Attr, MD5) ->
+ Misc0 = case SourceFile of
+ [] -> [];
+ [_|_] -> [{source,SourceFile}]
+ end,
Misc = case member(slim, Opts) of
false ->
{{Y,Mo,D},{H,Mi,S}} = erlang:universaltime(),
- [{time,{Y,Mo,D,H,Mi,S}},{source,SourceFile}];
+ [{time,{Y,Mo,D,H,Mi,S}}|Misc0];
true -> []
end,
Compile = [{options,Opts},{version,?COMPILER_VSN}|Misc],
diff --git a/lib/compiler/src/beam_block.erl b/lib/compiler/src/beam_block.erl
index 10dbaf462c..a8cfdffdf3 100644
--- a/lib/compiler/src/beam_block.erl
+++ b/lib/compiler/src/beam_block.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -58,6 +58,13 @@ blockify(Is) ->
blockify([{loop_rec,{f,Fail},{x,0}},{loop_rec_end,_Lbl},{label,Fail}|Is], Acc) ->
%% Useless instruction sequence.
blockify(Is, Acc);
+blockify([{get_map_elements,F,S,{list,Gets}}|Is0], Acc) ->
+ %% A get_map_elements instruction is only safe at the beginning of
+ %% a block because of the failure label.
+ {Ss,Ds} = beam_utils:split_even(Gets),
+ I = {set,Ds,[S|Ss],{get_map_elements,F}},
+ {Block,Is} = collect_block(Is0, [I]),
+ blockify(Is, [{block,Block}|Acc]);
blockify([I|Is0]=IsAll, Acc) ->
case collect(I) of
error -> blockify(Is0, [I|Acc]);
@@ -81,7 +88,9 @@ collect_block([I|Is]=Is0, Acc) ->
case collect(I) of
error -> {reverse(Acc),Is0};
Instr -> collect_block(Is, [Instr|Acc])
- end.
+ end;
+collect_block([], Acc) ->
+ {reverse(Acc),[]}.
collect({allocate,N,R}) -> {set,[],[],{alloc,R,{nozero,N,0,[]}}};
collect({allocate_zero,N,R}) -> {set,[],[],{alloc,R,{zero,N,0,[]}}};
@@ -101,9 +110,6 @@ collect({get_list,S,D1,D2}) -> {set,[D1,D2],[S],get_list};
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:split_even(Gets),
- {set,Ds,[S|Ss],{get_map_elements,F}};
collect({'catch'=Op,R,L}) ->
{set,[R],[],{try_catch,Op,L}};
collect({'try'=Op,R,L}) ->
diff --git a/lib/compiler/src/beam_bool.erl b/lib/compiler/src/beam_bool.erl
index efd935f666..f9a08f8718 100644
--- a/lib/compiler/src/beam_bool.erl
+++ b/lib/compiler/src/beam_bool.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_bs.erl b/lib/compiler/src/beam_bs.erl
index 55fa7ce10c..2aed98d4e7 100644
--- a/lib/compiler/src/beam_bs.erl
+++ b/lib/compiler/src/beam_bs.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_bsm.erl b/lib/compiler/src/beam_bsm.erl
index 4f76350269..286307a4be 100644
--- a/lib/compiler/src/beam_bsm.erl
+++ b/lib/compiler/src/beam_bsm.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2015. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -421,7 +421,8 @@ btb_follow_branches([], _, D) -> D.
btb_follow_branch(0, _Regs, D) -> D;
btb_follow_branch(Lbl, Regs, #btb{ok_br=Br0,index=Li}=D) ->
- case gb_sets:is_member(Lbl, Br0) of
+ Key = {Lbl,Regs},
+ case gb_sets:is_member(Key, Br0) of
true ->
%% We have already followed this branch and it was OK.
D;
@@ -432,7 +433,7 @@ btb_follow_branch(Lbl, Regs, #btb{ok_br=Br0,index=Li}=D) ->
btb_reaches_match_1(Is, Regs, D),
%% Since we got back, this branch is OK.
- D#btb{ok_br=gb_sets:insert(Lbl, Br),must_not_save=MustNotSave,
+ D#btb{ok_br=gb_sets:insert(Key, Br),must_not_save=MustNotSave,
must_save=MustSave}
end.
diff --git a/lib/compiler/src/beam_clean.erl b/lib/compiler/src/beam_clean.erl
index d9108c383d..10805a3c36 100644
--- a/lib/compiler/src/beam_clean.erl
+++ b/lib/compiler/src/beam_clean.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2000-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_dead.erl b/lib/compiler/src/beam_dead.erl
index 11129c39bc..dd42add433 100644
--- a/lib/compiler/src/beam_dead.erl
+++ b/lib/compiler/src/beam_dead.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2002-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_dict.erl b/lib/compiler/src/beam_dict.erl
index 654fb47dbd..9565ab74c4 100644
--- a/lib/compiler/src/beam_dict.erl
+++ b/lib/compiler/src/beam_dict.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_disasm.erl b/lib/compiler/src/beam_disasm.erl
index 84a94f09e3..5badcce696 100644
--- a/lib/compiler/src/beam_disasm.erl
+++ b/lib/compiler/src/beam_disasm.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2000-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_disasm.hrl b/lib/compiler/src/beam_disasm.hrl
index 30e3f22665..e18214644f 100644
--- a/lib/compiler/src/beam_disasm.hrl
+++ b/lib/compiler/src/beam_disasm.hrl
@@ -2,7 +2,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_except.erl b/lib/compiler/src/beam_except.erl
index e33655281f..cb3a6b79de 100644
--- a/lib/compiler/src/beam_except.erl
+++ b/lib/compiler/src/beam_except.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2011-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_flatten.erl b/lib/compiler/src/beam_flatten.erl
index 13c243b155..36369bd0b4 100644
--- a/lib/compiler/src/beam_flatten.erl
+++ b/lib/compiler/src/beam_flatten.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_jump.erl b/lib/compiler/src/beam_jump.erl
index 3b6eb19fe8..359248c6af 100644
--- a/lib/compiler/src/beam_jump.erl
+++ b/lib/compiler/src/beam_jump.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_listing.erl b/lib/compiler/src/beam_listing.erl
index fd5c0a042b..ce566373bb 100644
--- a/lib/compiler/src/beam_listing.erl
+++ b/lib/compiler/src/beam_listing.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_peep.erl b/lib/compiler/src/beam_peep.erl
index 0c1abfe6a0..1e430b4ed5 100644
--- a/lib/compiler/src/beam_peep.erl
+++ b/lib/compiler/src/beam_peep.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2008-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_receive.erl b/lib/compiler/src/beam_receive.erl
index 7276537949..c593184746 100644
--- a/lib/compiler/src/beam_receive.erl
+++ b/lib/compiler/src/beam_receive.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_reorder.erl b/lib/compiler/src/beam_reorder.erl
index 41586a7bf2..f1c0b3ef91 100644
--- a/lib/compiler/src/beam_reorder.erl
+++ b/lib/compiler/src/beam_reorder.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_split.erl b/lib/compiler/src/beam_split.erl
index bb1c0e23a9..c83c686953 100644
--- a/lib/compiler/src/beam_split.erl
+++ b/lib/compiler/src/beam_split.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2011. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -47,6 +47,8 @@ split_block([{set,[R],[_,_,_]=As,{bif,is_record,{f,Lbl}}}|Is], Bl, Acc) ->
split_block(Is, [], [{bif,is_record,{f,Lbl},As,R}|make_block(Bl, Acc)]);
split_block([{set,[R],As,{bif,N,{f,Lbl}=Fail}}|Is], Bl, Acc) when Lbl =/= 0 ->
split_block(Is, [], [{bif,N,Fail,As,R}|make_block(Bl, Acc)]);
+split_block([{set,[R],As,{bif,raise,{f,_}=Fail}}|Is], Bl, Acc) ->
+ split_block(Is, [], [{bif,raise,Fail,As,R}|make_block(Bl, Acc)]);
split_block([{set,[R],As,{alloc,Live,{gc_bif,N,{f,Lbl}=Fail}}}|Is], Bl, Acc)
when Lbl =/= 0 ->
split_block(Is, [], [{gc_bif,N,Fail,Live,As,R}|make_block(Bl, Acc)]);
diff --git a/lib/compiler/src/beam_trim.erl b/lib/compiler/src/beam_trim.erl
index 509e013b62..a8dc6805bc 100644
--- a/lib/compiler/src/beam_trim.erl
+++ b/lib/compiler/src/beam_trim.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_type.erl b/lib/compiler/src/beam_type.erl
index 4b45c28623..5076c5eb96 100644
--- a/lib/compiler/src/beam_type.erl
+++ b/lib/compiler/src/beam_type.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl
index 68d6105cfa..b338286a16 100644
--- a/lib/compiler/src/beam_utils.erl
+++ b/lib/compiler/src/beam_utils.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl
index fd38fc0095..6877141885 100644
--- a/lib/compiler/src/beam_validator.erl
+++ b/lib/compiler/src/beam_validator.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2004-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -509,6 +509,9 @@ 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({bif,raise,{f,0},Src,_Dst}, Vst) ->
+ validate_src(Src, Vst),
+ kill_state(Vst);
valfun_4({bif,Op,{f,Fail},Src,Dst}, Vst0) ->
validate_src(Src, Vst0),
Vst = branch_state(Fail, Vst0),
diff --git a/lib/compiler/src/beam_z.erl b/lib/compiler/src/beam_z.erl
index 8381578b68..6c7f8543c2 100644
--- a/lib/compiler/src/beam_z.erl
+++ b/lib/compiler/src/beam_z.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2012. All Rights Reserved.
+%% Copyright Ericsson AB 2012-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -24,6 +24,8 @@
-export([module/2]).
+-import(lists, [dropwhile/2]).
+
module({Mod,Exp,Attr,Fs0,Lc}, _Opt) ->
Fs = [function(F) || F <- Fs0],
{ok,{Mod,Exp,Attr,Fs,Lc}}.
@@ -51,6 +53,16 @@ undo_renames([{call,A,F},return|Is]) ->
[{call_only,A,F}|undo_renames(Is)];
undo_renames([{call_ext,A,F},return|Is]) ->
[{call_ext_only,A,F}|undo_renames(Is)];
+undo_renames([{bif,raise,_,_,_}=I|Is0]) ->
+ %% A minor optimization. Done here because:
+ %% (1) beam_jump may move or share 'raise' instructions, and that
+ %% may confuse beam_validator.
+ %% (2) beam_trim cannot do its optimization if the 'deallocate'
+ %% instruction after 'raise' has been removed.
+ Is = dropwhile(fun({label,_}) -> false;
+ (_) -> true
+ end, Is0),
+ [I|undo_renames(Is)];
undo_renames([I|Is]) ->
[undo_rename(I)|undo_renames(Is)];
undo_renames([]) -> [].
diff --git a/lib/compiler/src/cerl.erl b/lib/compiler/src/cerl.erl
index e7a2b8177a..d033050d3c 100644
--- a/lib/compiler/src/cerl.erl
+++ b/lib/compiler/src/cerl.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2001-2010. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/cerl_clauses.erl b/lib/compiler/src/cerl_clauses.erl
index 4d2f1ebd1b..805095e30c 100644
--- a/lib/compiler/src/cerl_clauses.erl
+++ b/lib/compiler/src/cerl_clauses.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2001-2010. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/cerl_inline.erl b/lib/compiler/src/cerl_inline.erl
index cbcacf9e8e..2a8cf2e758 100644
--- a/lib/compiler/src/cerl_inline.erl
+++ b/lib/compiler/src/cerl_inline.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2001-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/cerl_trees.erl b/lib/compiler/src/cerl_trees.erl
index 58bb18e34a..6d38748964 100644
--- a/lib/compiler/src/cerl_trees.erl
+++ b/lib/compiler/src/cerl_trees.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2001-2010. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -27,7 +27,7 @@
-module(cerl_trees).
-export([depth/1, fold/3, free_variables/1, get_label/1, label/1, label/2,
- map/2, mapfold/3, size/1, variables/1]).
+ map/2, mapfold/3, mapfold/4, size/1, variables/1]).
-import(cerl, [alias_pat/1, alias_var/1, ann_c_alias/3, ann_c_apply/3,
ann_c_binary/2, ann_c_bitstr/6, ann_c_call/4,
@@ -340,136 +340,162 @@ fold_pairs(_, S, []) ->
%% starting with the given value <code>Initial</code>, while doing a
%% post-order traversal of the tree, much like <code>fold/3</code>.
%%
+%% This is the same as mapfold/4, with an identity function as the
+%% pre-operation.
+%%
%% @see map/2
%% @see fold/3
+%% @see mapfold/4
-spec mapfold(fun((cerl:cerl(), term()) -> {cerl:cerl(), term()}),
term(), cerl:cerl()) -> {cerl:cerl(), term()}.
mapfold(F, S0, T) ->
+ mapfold(fun(T0, A) -> {T0, A} end, F, S0, T).
+
+
+%% @spec mapfold(Pre, Post, Initial::term(), Tree::cerl()) ->
+%% {cerl(), term()}
+%%
+%% Pre = Post = (cerl(), term()) -> {cerl(), term()}
+%%
+%% @doc Does a combined map/fold operation on the nodes of the
+%% tree. It begins by calling <code>Pre</code> on the tree, using the
+%% <code>Initial</code> value. It then deconstructs the top node of
+%% the returned tree and recurses on the children, using the returned
+%% value as the new initial and carrying the returned values from one
+%% call to the next. Finally it reassembles the top node from the
+%% children, calls <code>Post</code> on it and returns the result.
+
+-spec mapfold(fun((cerl:cerl(), term()) -> {cerl:cerl(), term()}),
+ fun((cerl:cerl(), term()) -> {cerl:cerl(), term()}),
+ term(), cerl:cerl()) -> {cerl:cerl(), term()}.
+
+mapfold(Pre, Post, S00, T0) ->
+ {T, S0} = Pre(T0, S00),
case type(T) of
literal ->
case concrete(T) of
[_ | _] ->
- {T1, S1} = mapfold(F, S0, cons_hd(T)),
- {T2, S2} = mapfold(F, S1, cons_tl(T)),
- F(update_c_cons(T, T1, T2), S2);
+ {T1, S1} = mapfold(Pre, Post, S0, cons_hd(T)),
+ {T2, S2} = mapfold(Pre, Post, S1, cons_tl(T)),
+ Post(update_c_cons(T, T1, T2), S2);
V when tuple_size(V) > 0 ->
- {Ts, S1} = mapfold_list(F, S0, tuple_es(T)),
- F(update_c_tuple(T, Ts), S1);
+ {Ts, S1} = mapfold_list(Pre, Post, S0, tuple_es(T)),
+ Post(update_c_tuple(T, Ts), S1);
_ ->
- F(T, S0)
+ Post(T, S0)
end;
var ->
- F(T, S0);
+ Post(T, S0);
values ->
- {Ts, S1} = mapfold_list(F, S0, values_es(T)),
- F(update_c_values(T, Ts), S1);
+ {Ts, S1} = mapfold_list(Pre, Post, S0, values_es(T)),
+ Post(update_c_values(T, Ts), S1);
cons ->
- {T1, S1} = mapfold(F, S0, cons_hd(T)),
- {T2, S2} = mapfold(F, S1, cons_tl(T)),
- F(update_c_cons_skel(T, T1, T2), S2);
+ {T1, S1} = mapfold(Pre, Post, S0, cons_hd(T)),
+ {T2, S2} = mapfold(Pre, Post, S1, cons_tl(T)),
+ Post(update_c_cons_skel(T, T1, T2), S2);
tuple ->
- {Ts, S1} = mapfold_list(F, S0, tuple_es(T)),
- F(update_c_tuple_skel(T, Ts), S1);
+ {Ts, S1} = mapfold_list(Pre, Post, S0, tuple_es(T)),
+ Post(update_c_tuple_skel(T, Ts), S1);
map ->
- {M , S1} = mapfold(F, S0, map_arg(T)),
- {Ts, S2} = mapfold_list(F, S1, map_es(T)),
- F(update_c_map(T, M, Ts), S2);
+ {M , S1} = mapfold(Pre, Post, S0, map_arg(T)),
+ {Ts, S2} = mapfold_list(Pre, Post, S1, map_es(T)),
+ Post(update_c_map(T, M, Ts), S2);
map_pair ->
- {Op, S1} = mapfold(F, S0, map_pair_op(T)),
- {Key, S2} = mapfold(F, S1, map_pair_key(T)),
- {Val, S3} = mapfold(F, S2, map_pair_val(T)),
- F(update_c_map_pair(T,Op,Key,Val), S3);
+ {Op, S1} = mapfold(Pre, Post, S0, map_pair_op(T)),
+ {Key, S2} = mapfold(Pre, Post, S1, map_pair_key(T)),
+ {Val, S3} = mapfold(Pre, Post, S2, map_pair_val(T)),
+ Post(update_c_map_pair(T,Op,Key,Val), S3);
'let' ->
- {Vs, S1} = mapfold_list(F, S0, let_vars(T)),
- {A, S2} = mapfold(F, S1, let_arg(T)),
- {B, S3} = mapfold(F, S2, let_body(T)),
- F(update_c_let(T, Vs, A, B), S3);
+ {Vs, S1} = mapfold_list(Pre, Post, S0, let_vars(T)),
+ {A, S2} = mapfold(Pre, Post, S1, let_arg(T)),
+ {B, S3} = mapfold(Pre, Post, S2, let_body(T)),
+ Post(update_c_let(T, Vs, A, B), S3);
seq ->
- {A, S1} = mapfold(F, S0, seq_arg(T)),
- {B, S2} = mapfold(F, S1, seq_body(T)),
- F(update_c_seq(T, A, B), S2);
+ {A, S1} = mapfold(Pre, Post, S0, seq_arg(T)),
+ {B, S2} = mapfold(Pre, Post, S1, seq_body(T)),
+ Post(update_c_seq(T, A, B), S2);
apply ->
- {E, S1} = mapfold(F, S0, apply_op(T)),
- {As, S2} = mapfold_list(F, S1, apply_args(T)),
- F(update_c_apply(T, E, As), S2);
+ {E, S1} = mapfold(Pre, Post, S0, apply_op(T)),
+ {As, S2} = mapfold_list(Pre, Post, S1, apply_args(T)),
+ Post(update_c_apply(T, E, As), S2);
call ->
- {M, S1} = mapfold(F, S0, call_module(T)),
- {N, S2} = mapfold(F, S1, call_name(T)),
- {As, S3} = mapfold_list(F, S2, call_args(T)),
- F(update_c_call(T, M, N, As), S3);
+ {M, S1} = mapfold(Pre, Post, S0, call_module(T)),
+ {N, S2} = mapfold(Pre, Post, S1, call_name(T)),
+ {As, S3} = mapfold_list(Pre, Post, S2, call_args(T)),
+ Post(update_c_call(T, M, N, As), S3);
primop ->
- {N, S1} = mapfold(F, S0, primop_name(T)),
- {As, S2} = mapfold_list(F, S1, primop_args(T)),
- F(update_c_primop(T, N, As), S2);
+ {N, S1} = mapfold(Pre, Post, S0, primop_name(T)),
+ {As, S2} = mapfold_list(Pre, Post, S1, primop_args(T)),
+ Post(update_c_primop(T, N, As), S2);
'case' ->
- {A, S1} = mapfold(F, S0, case_arg(T)),
- {Cs, S2} = mapfold_list(F, S1, case_clauses(T)),
- F(update_c_case(T, A, Cs), S2);
+ {A, S1} = mapfold(Pre, Post, S0, case_arg(T)),
+ {Cs, S2} = mapfold_list(Pre, Post, S1, case_clauses(T)),
+ Post(update_c_case(T, A, Cs), S2);
clause ->
- {Ps, S1} = mapfold_list(F, S0, clause_pats(T)),
- {G, S2} = mapfold(F, S1, clause_guard(T)),
- {B, S3} = mapfold(F, S2, clause_body(T)),
- F(update_c_clause(T, Ps, G, B), S3);
+ {Ps, S1} = mapfold_list(Pre, Post, S0, clause_pats(T)),
+ {G, S2} = mapfold(Pre, Post, S1, clause_guard(T)),
+ {B, S3} = mapfold(Pre, Post, S2, clause_body(T)),
+ Post(update_c_clause(T, Ps, G, B), S3);
alias ->
- {V, S1} = mapfold(F, S0, alias_var(T)),
- {P, S2} = mapfold(F, S1, alias_pat(T)),
- F(update_c_alias(T, V, P), S2);
+ {V, S1} = mapfold(Pre, Post, S0, alias_var(T)),
+ {P, S2} = mapfold(Pre, Post, S1, alias_pat(T)),
+ Post(update_c_alias(T, V, P), S2);
'fun' ->
- {Vs, S1} = mapfold_list(F, S0, fun_vars(T)),
- {B, S2} = mapfold(F, S1, fun_body(T)),
- F(update_c_fun(T, Vs, B), S2);
+ {Vs, S1} = mapfold_list(Pre, Post, S0, fun_vars(T)),
+ {B, S2} = mapfold(Pre, Post, S1, fun_body(T)),
+ Post(update_c_fun(T, Vs, B), S2);
'receive' ->
- {Cs, S1} = mapfold_list(F, S0, receive_clauses(T)),
- {E, S2} = mapfold(F, S1, receive_timeout(T)),
- {A, S3} = mapfold(F, S2, receive_action(T)),
- F(update_c_receive(T, Cs, E, A), S3);
+ {Cs, S1} = mapfold_list(Pre, Post, S0, receive_clauses(T)),
+ {E, S2} = mapfold(Pre, Post, S1, receive_timeout(T)),
+ {A, S3} = mapfold(Pre, Post, S2, receive_action(T)),
+ Post(update_c_receive(T, Cs, E, A), S3);
'try' ->
- {E, S1} = mapfold(F, S0, try_arg(T)),
- {Vs, S2} = mapfold_list(F, S1, try_vars(T)),
- {B, S3} = mapfold(F, S2, try_body(T)),
- {Evs, S4} = mapfold_list(F, S3, try_evars(T)),
- {H, S5} = mapfold(F, S4, try_handler(T)),
- F(update_c_try(T, E, Vs, B, Evs, H), S5);
+ {E, S1} = mapfold(Pre, Post, S0, try_arg(T)),
+ {Vs, S2} = mapfold_list(Pre, Post, S1, try_vars(T)),
+ {B, S3} = mapfold(Pre, Post, S2, try_body(T)),
+ {Evs, S4} = mapfold_list(Pre, Post, S3, try_evars(T)),
+ {H, S5} = mapfold(Pre, Post, S4, try_handler(T)),
+ Post(update_c_try(T, E, Vs, B, Evs, H), S5);
'catch' ->
- {B, S1} = mapfold(F, S0, catch_body(T)),
- F(update_c_catch(T, B), S1);
+ {B, S1} = mapfold(Pre, Post, S0, catch_body(T)),
+ Post(update_c_catch(T, B), S1);
binary ->
- {Ds, S1} = mapfold_list(F, S0, binary_segments(T)),
- F(update_c_binary(T, Ds), S1);
+ {Ds, S1} = mapfold_list(Pre, Post, S0, binary_segments(T)),
+ Post(update_c_binary(T, Ds), S1);
bitstr ->
- {Val, S1} = mapfold(F, S0, bitstr_val(T)),
- {Size, S2} = mapfold(F, S1, bitstr_size(T)),
- {Unit, S3} = mapfold(F, S2, bitstr_unit(T)),
- {Type, S4} = mapfold(F, S3, bitstr_type(T)),
- {Flags, S5} = mapfold(F, S4, bitstr_flags(T)),
- F(update_c_bitstr(T, Val, Size, Unit, Type, Flags), S5);
+ {Val, S1} = mapfold(Pre, Post, S0, bitstr_val(T)),
+ {Size, S2} = mapfold(Pre, Post, S1, bitstr_size(T)),
+ {Unit, S3} = mapfold(Pre, Post, S2, bitstr_unit(T)),
+ {Type, S4} = mapfold(Pre, Post, S3, bitstr_type(T)),
+ {Flags, S5} = mapfold(Pre, Post, S4, bitstr_flags(T)),
+ Post(update_c_bitstr(T, Val, Size, Unit, Type, Flags), S5);
letrec ->
- {Ds, S1} = mapfold_pairs(F, S0, letrec_defs(T)),
- {B, S2} = mapfold(F, S1, letrec_body(T)),
- F(update_c_letrec(T, Ds, B), S2);
+ {Ds, S1} = mapfold_pairs(Pre, Post, S0, letrec_defs(T)),
+ {B, S2} = mapfold(Pre, Post, S1, letrec_body(T)),
+ Post(update_c_letrec(T, Ds, B), S2);
module ->
- {N, S1} = mapfold(F, S0, module_name(T)),
- {Es, S2} = mapfold_list(F, S1, module_exports(T)),
- {As, S3} = mapfold_pairs(F, S2, module_attrs(T)),
- {Ds, S4} = mapfold_pairs(F, S3, module_defs(T)),
- F(update_c_module(T, N, Es, As, Ds), S4)
+ {N, S1} = mapfold(Pre, Post, S0, module_name(T)),
+ {Es, S2} = mapfold_list(Pre, Post, S1, module_exports(T)),
+ {As, S3} = mapfold_pairs(Pre, Post, S2, module_attrs(T)),
+ {Ds, S4} = mapfold_pairs(Pre, Post, S3, module_defs(T)),
+ Post(update_c_module(T, N, Es, As, Ds), S4)
end.
-mapfold_list(F, S0, [T | Ts]) ->
- {T1, S1} = mapfold(F, S0, T),
- {Ts1, S2} = mapfold_list(F, S1, Ts),
+mapfold_list(Pre, Post, S0, [T | Ts]) ->
+ {T1, S1} = mapfold(Pre, Post, S0, T),
+ {Ts1, S2} = mapfold_list(Pre, Post, S1, Ts),
{[T1 | Ts1], S2};
-mapfold_list(_, S, []) ->
+mapfold_list(_, _, S, []) ->
{[], S}.
-mapfold_pairs(F, S0, [{T1, T2} | Ps]) ->
- {T3, S1} = mapfold(F, S0, T1),
- {T4, S2} = mapfold(F, S1, T2),
- {Ps1, S3} = mapfold_pairs(F, S2, Ps),
+mapfold_pairs(Pre, Post, S0, [{T1, T2} | Ps]) ->
+ {T3, S1} = mapfold(Pre, Post, S0, T1),
+ {T4, S2} = mapfold(Pre, Post, S1, T2),
+ {Ps1, S3} = mapfold_pairs(Pre, Post, S2, Ps),
{[{T3, T4} | Ps1], S3};
-mapfold_pairs(_, S, []) ->
+mapfold_pairs(_, _, S, []) ->
{[], S}.
@@ -640,8 +666,8 @@ vars_in_list([], _, A) ->
vars_in_defs(Ds, S) ->
vars_in_defs(Ds, S, []).
-vars_in_defs([{_, F} | Ds], S, A) ->
- vars_in_defs(Ds, S, ordsets:union(variables(F, S), A));
+vars_in_defs([{_, Post} | Ds], S, A) ->
+ vars_in_defs(Ds, S, ordsets:union(variables(Post, S), A));
vars_in_defs([], _, A) ->
A.
@@ -703,13 +729,14 @@ label(T, N, Env) ->
%% Constant literals are not labeled.
{T, N};
var ->
- case dict:find(var_name(T), Env) of
- {ok, L} ->
- {As, _} = label_ann(T, L),
- N1 = N;
- error ->
- {As, N1} = label_ann(T, N)
- end,
+ {As, N1} =
+ case dict:find(var_name(T), Env) of
+ {ok, L} ->
+ {A, _} = label_ann(T, L),
+ {A, N};
+ error ->
+ label_ann(T, N)
+ end,
{set_ann(T, As), N1};
values ->
{Ts, N1} = label_list(values_es(T), N, Env),
diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl
index 72f1a767ed..65566df025 100644
--- a/lib/compiler/src/compile.erl
+++ b/lib/compiler/src/compile.erl
@@ -1328,7 +1328,7 @@ save_core_code(St) ->
beam_asm(#compile{ifile=File,code=Code0,
abstract_code=Abst,mod_options=Opts0}=St) ->
- Source = filename:absname(File),
+ Source = paranoid_absname(File),
Opts1 = lists:map(fun({debug_info_key,_}) -> {debug_info_key,'********'};
(Other) -> Other
end, Opts0),
@@ -1337,6 +1337,16 @@ beam_asm(#compile{ifile=File,code=Code0,
{ok,Code} -> {ok,St#compile{code=Code,abstract_code=[]}}
end.
+paranoid_absname(""=File) ->
+ File;
+paranoid_absname(File) ->
+ case file:get_cwd() of
+ {ok,Cwd} ->
+ filename:absname(File, Cwd);
+ _ ->
+ File
+ end.
+
test_native(#compile{options=Opts}) ->
%% This test is done late, in case some other option has turned off native.
%% 'native' given on the command line can be overridden by
@@ -1620,11 +1630,8 @@ output_encoding(F, #compile{encoding = Encoding}) ->
ok = io:setopts(F, [{encoding, Encoding}]),
ok = io:fwrite(F, <<"%% ~s\n">>, [epp:encoding_to_string(Encoding)]).
-restore_expanded_types("P", Fs) ->
- epp:restore_typed_record_fields(Fs);
restore_expanded_types("E", {M,I,Fs0}) ->
- Fs1 = restore_expand_module(Fs0),
- Fs = epp:restore_typed_record_fields(Fs1),
+ Fs = restore_expand_module(Fs0),
{M,I,Fs};
restore_expanded_types(_Ext, Code) -> Code.
@@ -1636,6 +1643,8 @@ restore_expand_module([{attribute,Line,spec,[Arg]}|Fs]) ->
[{attribute,Line,spec,Arg}|restore_expand_module(Fs)];
restore_expand_module([{attribute,Line,callback,[Arg]}|Fs]) ->
[{attribute,Line,callback,Arg}|restore_expand_module(Fs)];
+restore_expand_module([{attribute,Line,record,[R]}|Fs]) ->
+ [{attribute,Line,record,R}|restore_expand_module(Fs)];
restore_expand_module([F|Fs]) ->
[F|restore_expand_module(Fs)];
restore_expand_module([]) -> [].
@@ -1682,6 +1691,7 @@ help(_) ->
%% Compile entry point for erl_compile.
compile(File0, _OutFile, Options) ->
+ pre_load(),
File = shorten_filename(File0),
case file(File, make_erl_options(Options)) of
{ok,_Mod} -> ok;
@@ -1746,3 +1756,46 @@ make_erl_options(Opts) ->
end,
Options ++ [report_errors, {cwd, Cwd}, {outdir, Outdir}|
[{i, Dir} || Dir <- Includes]] ++ Specific.
+
+pre_load() ->
+ L = [beam_a,
+ beam_asm,
+ beam_block,
+ beam_bool,
+ beam_bs,
+ beam_bsm,
+ beam_clean,
+ beam_dead,
+ beam_dict,
+ beam_except,
+ beam_flatten,
+ beam_jump,
+ beam_opcodes,
+ beam_peep,
+ beam_receive,
+ beam_reorder,
+ beam_split,
+ beam_trim,
+ beam_type,
+ beam_utils,
+ beam_validator,
+ beam_z,
+ cerl,
+ cerl_clauses,
+ cerl_sets,
+ cerl_trees,
+ core_lib,
+ epp,
+ erl_bifs,
+ erl_expand_records,
+ erl_lint,
+ erl_parse,
+ erl_scan,
+ sys_core_dsetel,
+ sys_core_fold,
+ sys_pre_expand,
+ v3_codegen,
+ v3_core,
+ v3_kernel,
+ v3_life],
+ code:ensure_modules_loaded(L).
diff --git a/lib/compiler/src/compiler.app.src b/lib/compiler/src/compiler.app.src
index a2b2a1d277..1fd7800e85 100644
--- a/lib/compiler/src/compiler.app.src
+++ b/lib/compiler/src/compiler.app.src
@@ -1,7 +1,7 @@
% This is an -*- erlang -*- file.
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/compiler.appup.src b/lib/compiler/src/compiler.appup.src
index 3ada2e933f..e9db37e203 100644
--- a/lib/compiler/src/compiler.appup.src
+++ b/lib/compiler/src/compiler.appup.src
@@ -1,7 +1,7 @@
%% -*- erlang -*-
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2014. All Rights Reserved.
+%% Copyright Ericsson AB 2014-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/core_lib.erl b/lib/compiler/src/core_lib.erl
index 839c736ff2..c1806272bd 100644
--- a/lib/compiler/src/core_lib.erl
+++ b/lib/compiler/src/core_lib.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2000-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/core_parse.hrl b/lib/compiler/src/core_parse.hrl
index ecf6cc9956..83a6f0179c 100644
--- a/lib/compiler/src/core_parse.hrl
+++ b/lib/compiler/src/core_parse.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/core_parse.yrl b/lib/compiler/src/core_parse.yrl
index 59cfc97ebd..315324e906 100644
--- a/lib/compiler/src/core_parse.yrl
+++ b/lib/compiler/src/core_parse.yrl
@@ -1,7 +1,7 @@
%% -*-Erlang-*-
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/core_pp.erl b/lib/compiler/src/core_pp.erl
index c2a6a81d5e..78a081e9ca 100644
--- a/lib/compiler/src/core_pp.erl
+++ b/lib/compiler/src/core_pp.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/core_scan.erl b/lib/compiler/src/core_scan.erl
index 5e85bba2bd..11b52f6c5f 100644
--- a/lib/compiler/src/core_scan.erl
+++ b/lib/compiler/src/core_scan.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2000-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/erl_bifs.erl b/lib/compiler/src/erl_bifs.erl
index c00f5eab70..6b2d781a76 100644
--- a/lib/compiler/src/erl_bifs.erl
+++ b/lib/compiler/src/erl_bifs.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2001-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/genop.tab b/lib/compiler/src/genop.tab
index 3a877f2403..dcbdeb32e6 100755
--- a/lib/compiler/src/genop.tab
+++ b/lib/compiler/src/genop.tab
@@ -1,7 +1,7 @@
#
# %CopyrightBegin%
#
-# Copyright Ericsson AB 1998-2011. All Rights Reserved.
+# Copyright Ericsson AB 1998-2016. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/rec_env.erl b/lib/compiler/src/rec_env.erl
index 5a4a870769..2b89dc628c 100644
--- a/lib/compiler/src/rec_env.erl
+++ b/lib/compiler/src/rec_env.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2001-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/sys_core_dsetel.erl b/lib/compiler/src/sys_core_dsetel.erl
index c6cfdbae7e..bd3eeae238 100644
--- a/lib/compiler/src/sys_core_dsetel.erl
+++ b/lib/compiler/src/sys_core_dsetel.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2002-2010. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index 43ce9a7172..b5b8d8a8ec 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -277,7 +277,7 @@ expr(#c_fun{}=Fun, effect, _) ->
add_warning(Fun, useless_building),
void();
expr(#c_fun{vars=Vs0,body=B0}=Fun, Ctxt0, Sub0) ->
- {Vs1,Sub1} = pattern_list(Vs0, Sub0),
+ {Vs1,Sub1} = var_list(Vs0, Sub0),
Ctxt = case Ctxt0 of
{letrec,Ctxt1} -> Ctxt1;
value -> value
@@ -420,13 +420,13 @@ expr(#c_try{anno=A,arg=E0,vars=Vs0,body=B0,evars=Evs0,handler=H0}=Try, _, Sub0)
%% Here is the general try/catch construct outside of guards.
%% We can remove try if the value is simple and replace it with a let.
E1 = body(E0, value, Sub0),
- {Vs1,Sub1} = pattern_list(Vs0, Sub0),
+ {Vs1,Sub1} = var_list(Vs0, Sub0),
B1 = body(B0, value, Sub1),
case is_safe_simple(E1, Sub0) of
true ->
expr(#c_let{anno=A,vars=Vs1,arg=E1,body=B1}, value, Sub0);
false ->
- {Evs1,Sub2} = pattern_list(Evs0, Sub0),
+ {Evs1,Sub2} = var_list(Evs0, Sub0),
H1 = body(H0, value, Sub2),
Try#c_try{arg=E1,vars=Vs1,body=B1,evars=Evs1,handler=H1}
end.
@@ -1078,15 +1078,28 @@ is_atom_or_var(_) -> false.
%% clause(Clause, Cepxr, Context, Sub) -> Clause.
-clause(#c_clause{pats=Ps0,guard=G0,body=B0}=Cl, Cexpr, Ctxt, Sub0) ->
- {Ps1,Sub1} = pattern_list(Ps0, Sub0),
+clause(#c_clause{pats=Ps0}=Cl, Cexpr, Ctxt, Sub0) ->
+ try pattern_list(Ps0, Sub0) of
+ {Ps1,Sub1} ->
+ clause_1(Cl, Ps1, Cexpr, Ctxt, Sub1)
+ catch
+ nomatch ->
+ Cl#c_clause{anno=[compiler_generated],
+ guard=#c_literal{val=false}}
+ end.
+
+clause_1(#c_clause{guard=G0,body=B0}=Cl, Ps1, Cexpr, Ctxt, Sub1) ->
Sub2 = update_types(Cexpr, Ps1, Sub1),
- GSub = case {Cexpr,Ps1} of
- {#c_var{name='_'},_} ->
+ GSub = case {Cexpr,Ps1,G0} of
+ {_,_,#c_literal{}} ->
+ %% No need for substitution tricks when the guard
+ %% does not contain any variables.
+ Sub2;
+ {#c_var{name='_'},_,_} ->
%% In a 'receive', Cexpr is the variable '_', which represents the
%% message being matched. We must NOT do any extra substiutions.
Sub2;
- {#c_var{},[#c_var{}=Var]} ->
+ {#c_var{},[#c_var{}=Var],_} ->
%% The idea here is to optimize expressions such as
%%
%% case A of A -> ...
@@ -1120,7 +1133,7 @@ clause(#c_clause{pats=Ps0,guard=G0,body=B0}=Cl, Cexpr, Ctxt, Sub0) ->
%% the unsubstituted variables and values.
let_substs(Vs0, As0, Sub0) ->
- {Vs1,Sub1} = pattern_list(Vs0, Sub0),
+ {Vs1,Sub1} = var_list(Vs0, Sub0),
{Vs2,As1,Ss} = let_substs_1(Vs1, As0, Sub1),
Sub2 = sub_add_scope([V || #c_var{name=V} <- Vs2], Sub1),
{Vs2,As1,
@@ -1206,20 +1219,132 @@ bin_pattern_list(Ps0, Isub, Osub0) ->
{Ps,{_,Osub}} = mapfoldl(fun bin_pattern/2, {Isub,Osub0}, Ps0),
{Ps,Osub}.
-bin_pattern(#c_bitstr{val=E0,size=Size0}=Pat, {Isub0,Osub0}) ->
+bin_pattern(#c_bitstr{val=E0,size=Size0}=Pat0, {Isub0,Osub0}) ->
Size1 = expr(Size0, Isub0),
{E1,Osub} = pattern(E0, Isub0, Osub0),
Isub = case E0 of
#c_var{} -> sub_set_var(E0, E1, Isub0);
_ -> Isub0
end,
- {Pat#c_bitstr{val=E1,size=Size1},{Isub,Osub}}.
+ Pat = Pat0#c_bitstr{val=E1,size=Size1},
+ bin_pat_warn(Pat),
+ {Pat,{Isub,Osub}}.
pattern_list(Ps, Sub) -> pattern_list(Ps, Sub, Sub).
pattern_list(Ps0, Isub, Osub0) ->
mapfoldl(fun (P, Osub) -> pattern(P, Isub, Osub) end, Osub0, Ps0).
+%% var_list([Var], InSub) -> {Pattern,OutSub}.
+%% Works like pattern_list/2 but only accept variables and is
+%% guaranteed not to throw an exception.
+
+var_list(Vs, Sub0) ->
+ mapfoldl(fun (#c_var{}=V, Sub) ->
+ pattern(V, Sub, Sub)
+ end, Sub0, Vs).
+
+
+%%%
+%%% Generate warnings for binary patterns that will not match.
+%%%
+
+bin_pat_warn(#c_bitstr{type=#c_literal{val=Type},
+ val=Val0,
+ size=#c_literal{val=Sz},
+ unit=#c_literal{val=Unit},
+ flags=Fl}=Pat) ->
+ case {Type,Sz} of
+ {_,_} when is_integer(Sz), Sz >= 0 -> ok;
+ {binary,all} -> ok;
+ {utf8,undefined} -> ok;
+ {utf16,undefined} -> ok;
+ {utf32,undefined} -> ok;
+ {_,_} ->
+ add_warning(Pat, {nomatch_bit_syntax_size,Sz}),
+ throw(nomatch)
+ end,
+ case {Type,Val0} of
+ {integer,#c_literal{val=Val}} when is_integer(Val) ->
+ Signedness = signedness(Fl),
+ TotalSz = Sz * Unit,
+ bit_pat_warn_int(Val, TotalSz, Signedness, Pat);
+ {float,#c_literal{val=Val}} when is_float(Val) ->
+ ok;
+ {utf8,#c_literal{val=Val}} when is_integer(Val) ->
+ bit_pat_warn_unicode(Val, Pat);
+ {utf16,#c_literal{val=Val}} when is_integer(Val) ->
+ bit_pat_warn_unicode(Val, Pat);
+ {utf32,#c_literal{val=Val}} when is_integer(Val) ->
+ bit_pat_warn_unicode(Val, Pat);
+ {_,#c_literal{val=Val}} ->
+ add_warning(Pat, {nomatch_bit_syntax_type,Val,Type}),
+ throw(nomatch);
+ {_,_} ->
+ ok
+ end;
+bin_pat_warn(#c_bitstr{type=#c_literal{val=Type},val=Val0,flags=Fl}=Pat) ->
+ %% Size is variable. Not much that we can check.
+ case {Type,Val0} of
+ {integer,#c_literal{val=Val}} when is_integer(Val) ->
+ case signedness(Fl) of
+ unsigned when Val < 0 ->
+ add_warning(Pat, {nomatch_bit_syntax_unsigned,Val}),
+ throw(nomatch);
+ _ ->
+ ok
+ end;
+ {float,#c_literal{val=Val}} when is_float(Val) ->
+ ok;
+ {_,#c_literal{val=Val}} ->
+ add_warning(Pat, {nomatch_bit_syntax_type,Val,Type}),
+ throw(nomatch);
+ {_,_} ->
+ ok
+ end.
+
+bit_pat_warn_int(Val, 0, signed, Pat) ->
+ if
+ Val =:= 0 ->
+ ok;
+ true ->
+ add_warning(Pat, {nomatch_bit_syntax_truncated,signed,Val,0}),
+ throw(nomatch)
+ end;
+bit_pat_warn_int(Val, Sz, signed, Pat) ->
+ if
+ Val < 0, Val bsr (Sz - 1) =/= -1 ->
+ add_warning(Pat, {nomatch_bit_syntax_truncated,signed,Val,Sz}),
+ throw(nomatch);
+ Val > 0, Val bsr (Sz - 1) =/= 0 ->
+ add_warning(Pat, {nomatch_bit_syntax_truncated,signed,Val,Sz}),
+ throw(nomatch);
+ true ->
+ ok
+ end;
+bit_pat_warn_int(Val, _Sz, unsigned, Pat) when Val < 0 ->
+ add_warning(Pat, {nomatch_bit_syntax_unsigned,Val}),
+ throw(nomatch);
+bit_pat_warn_int(Val, Sz, unsigned, Pat) ->
+ if
+ Val bsr Sz =:= 0 ->
+ ok;
+ true ->
+ add_warning(Pat, {nomatch_bit_syntax_truncated,unsigned,Val,Sz}),
+ throw(nomatch)
+ end.
+
+bit_pat_warn_unicode(U, _Pat) when 0 =< U, U =< 16#10FFFF ->
+ ok;
+bit_pat_warn_unicode(U, Pat) ->
+ add_warning(Pat, {nomatch_bit_syntax_unicode,U}),
+ throw(nomatch).
+
+signedness(#c_literal{val=Flags}) ->
+ [S] = [F || F <- Flags, F =:= signed orelse F =:= unsigned],
+ S.
+
+
%% is_subst(Expr) -> true | false.
%% Test whether an expression is a suitable substitution.
@@ -2251,11 +2376,11 @@ move_let_into_expr(#c_let{vars=InnerVs0,body=InnerBody0}=Inner,
%%
Arg = body(Arg0, Sub0),
ScopeSub0 = sub_subst_scope(Sub0#sub{t=#{}}),
- {OuterVs,ScopeSub} = pattern_list(OuterVs0, ScopeSub0),
+ {OuterVs,ScopeSub} = var_list(OuterVs0, ScopeSub0),
OuterBody = body(OuterBody0, ScopeSub),
- {InnerVs,Sub} = pattern_list(InnerVs0, Sub0),
+ {InnerVs,Sub} = var_list(InnerVs0, Sub0),
InnerBody = body(InnerBody0, Sub),
Outer#c_let{vars=OuterVs,arg=Arg,
body=Inner#c_let{vars=InnerVs,arg=OuterBody,body=InnerBody}};
@@ -2271,39 +2396,49 @@ move_let_into_expr(#c_let{vars=Lvs0,body=Lbody0}=Let,
case {TwoClauses,is_failing_clause(Ca0),is_failing_clause(Cb0)} of
{true,false,true} ->
%% let <Lvars> = case <Case-expr> of
- %% <Cvars> -> <Clause-body>;
- %% <OtherCvars> -> erlang:error(...)
+ %% <Cpats> -> <Clause-body>;
+ %% <OtherCpats> -> erlang:error(...)
%% end
%% in <Let-body>
%%
%% ==>
%%
%% case <Case-expr> of
- %% <Cvars> ->
+ %% <Cpats> ->
%% let <Lvars> = <Clause-body>
%% in <Let-body>;
- %% <OtherCvars> -> erlang:error(...)
+ %% <OtherCpats> -> erlang:error(...)
%% end
Cexpr = body(Cexpr0, Sub0),
- CaVars0 = Ca0#c_clause.pats,
+ CaPats0 = Ca0#c_clause.pats,
G0 = Ca0#c_clause.guard,
B0 = Ca0#c_clause.body,
ScopeSub0 = sub_subst_scope(Sub0#sub{t=#{}}),
- {CaVars,ScopeSub} = pattern_list(CaVars0, ScopeSub0),
- G = guard(G0, ScopeSub),
-
- B1 = body(B0, ScopeSub),
-
- {Lvs,B2,Sub1} = let_substs(Lvs0, B1, Sub0),
- Sub2 = Sub1#sub{s=cerl_sets:union(ScopeSub#sub.s,
- Sub1#sub.s)},
- Lbody = body(Lbody0, Sub2),
- B = Let#c_let{vars=Lvs,arg=core_lib:make_values(B2),body=Lbody},
-
- Ca = Ca0#c_clause{pats=CaVars,guard=G,body=B},
- Cb = clause(Cb0, Cexpr, value, Sub0),
- Case#c_case{arg=Cexpr,clauses=[Ca,Cb]};
+ try pattern_list(CaPats0, ScopeSub0) of
+ {CaPats,ScopeSub} ->
+ G = guard(G0, ScopeSub),
+
+ B1 = body(B0, ScopeSub),
+
+ {Lvs,B2,Sub1} = let_substs(Lvs0, B1, Sub0),
+ Sub2 = Sub1#sub{s=cerl_sets:union(ScopeSub#sub.s,
+ Sub1#sub.s)},
+ Lbody = body(Lbody0, Sub2),
+ B = Let#c_let{vars=Lvs,
+ arg=core_lib:make_values(B2),
+ body=Lbody},
+
+ Ca = Ca0#c_clause{pats=CaPats,guard=G,body=B},
+ Cb = clause(Cb0, Cexpr, value, Sub0),
+ Case#c_case{arg=Cexpr,clauses=[Ca,Cb]}
+ catch
+ nomatch ->
+ %% This is not a defeat. The code will eventually
+ %% be optimized to erlang:error(...) by the other
+ %% optimizations done in this module.
+ impossible
+ end;
{_,_,_} -> impossible
end;
move_let_into_expr(#c_let{vars=Lvs0,body=Lbody0}=Let,
@@ -2595,7 +2730,7 @@ move_case_into_arg(#c_case{arg=#c_let{vars=OuterVars0,arg=OuterArg,
%% in case <InnerArg> of <InnerClauses> end
%%
ScopeSub0 = sub_subst_scope(Sub#sub{t=#{}}),
- {OuterVars,ScopeSub} = pattern_list(OuterVars0, ScopeSub0),
+ {OuterVars,ScopeSub} = var_list(OuterVars0, ScopeSub0),
InnerArg = body(InnerArg0, ScopeSub),
Outer#c_let{vars=OuterVars,arg=OuterArg,
body=Inner#c_case{arg=InnerArg,clauses=InnerClauses}};
@@ -2624,14 +2759,18 @@ move_case_into_arg(#c_case{arg=#c_case{arg=OuterArg,
%% end
%%
ScopeSub0 = sub_subst_scope(Sub#sub{t=#{}}),
- {OuterPats,ScopeSub} = pattern_list(OuterPats0, ScopeSub0),
- OuterGuard = guard(OuterGuard0, ScopeSub),
- InnerArg = body(InnerArg0, ScopeSub),
- Inner = Inner0#c_case{arg=InnerArg,clauses=InnerClauses},
- OuterCa = OuterCa0#c_clause{pats=OuterPats,guard=OuterGuard,
- body=Inner},
- Outer#c_case{arg=OuterArg,
- clauses=[OuterCa,OuterCb]};
+
+ %% We KNOW that pattern_list/2 has already been called for OuterPats0;
+ %% therefore, it cannot throw an exception.
+ {OuterPats,ScopeSub} = pattern_list(OuterPats0, ScopeSub0),
+ OuterGuard = guard(OuterGuard0, ScopeSub),
+ InnerArg = body(InnerArg0, ScopeSub),
+ Inner = Inner0#c_case{arg=InnerArg,clauses=InnerClauses},
+ OuterCa = OuterCa0#c_clause{pats=OuterPats,
+ guard=OuterGuard,
+ body=Inner},
+ Outer#c_case{arg=OuterArg,
+ clauses=[OuterCa,OuterCb]};
false ->
impossible
end;
@@ -3213,6 +3352,29 @@ format_error(nomatch_shadow) ->
"this clause cannot match because a previous clause always matches";
format_error(nomatch_guard) ->
"the guard for this clause evaluates to 'false'";
+format_error({nomatch_bit_syntax_truncated,Signess,Val,Sz}) ->
+ S = case Signess of
+ signed -> "a 'signed'";
+ unsigned -> "an 'unsigned'"
+ end,
+ F = "this clause cannot match because the value ~P"
+ " will not fit in ~s binary segment of size ~p",
+ flatten(io_lib:format(F, [Val,10,S,Sz]));
+format_error({nomatch_bit_syntax_unsigned,Val}) ->
+ F = "this clause cannot match because the negative value ~P"
+ " will never match the value of an 'unsigned' binary segment",
+ flatten(io_lib:format(F, [Val,10]));
+format_error({nomatch_bit_syntax_size,Sz}) ->
+ F = "this clause cannot match because '~P' is not a valid size for a binary segment",
+ flatten(io_lib:format(F, [Sz,10]));
+format_error({nomatch_bit_syntax_type,Val,Type}) ->
+ F = "this clause cannot match because '~P' is not of the"
+ " expected type '~p'",
+ flatten(io_lib:format(F, [Val,10,Type]));
+format_error({nomatch_bit_syntax_unicode,Val}) ->
+ F = "this clause cannot match because the value ~p"
+ " is not a valid Unicode code point",
+ flatten(io_lib:format(F, [Val]));
format_error(no_clause_match) ->
"no clause will ever match";
format_error(nomatch_clause_type) ->
diff --git a/lib/compiler/src/sys_core_inline.erl b/lib/compiler/src/sys_core_inline.erl
index 838dda68c6..8c1f69d5de 100644
--- a/lib/compiler/src/sys_core_inline.erl
+++ b/lib/compiler/src/sys_core_inline.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2000-2010. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/sys_pre_attributes.erl b/lib/compiler/src/sys_pre_attributes.erl
index f0cb630205..bc93c85989 100644
--- a/lib/compiler/src/sys_pre_attributes.erl
+++ b/lib/compiler/src/sys_pre_attributes.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1998-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl
index 6f1912c616..f531056591 100644
--- a/lib/compiler/src/v3_codegen.erl
+++ b/lib/compiler/src/v3_codegen.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl
index 8074456be2..de775097e3 100644
--- a/lib/compiler/src/v3_core.erl
+++ b/lib/compiler/src/v3_core.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -1080,13 +1080,39 @@ bc_tq1(Line, E, [#igen{anno=GAnno,ceps=Ceps,
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) ->
- {E,Pre,St} = expr({bin,Bl,[{bin_element,Bl,
- {var,Bl,AccVar#c_var.name},
- {atom,Bl,all},
- [binary,{unit,1}]}|Elements]}, St0),
+ bc_tq_build(Bl, [], AccVar, Elements, St0);
+bc_tq1(Line, E0, [], AccVar, St0) ->
+ BsFlags = [binary,{unit,1}],
+ BsSize = {atom,Line,all},
+ {E1,Pre0,St1} = safe(E0, St0),
+ case E1 of
+ #c_var{name=VarName} ->
+ Var = {var,Line,VarName},
+ Els = [{bin_element,Line,Var,BsSize,BsFlags}],
+ bc_tq_build(Line, Pre0, AccVar, Els, St1);
+ #c_literal{val=Val} when is_bitstring(Val) ->
+ Bits = bit_size(Val),
+ <<Int0:Bits>> = Val,
+ Int = {integer,Line,Int0},
+ Sz = {integer,Line,Bits},
+ Els = [{bin_element,Line,Int,Sz,[integer,{unit,1},big]}],
+ bc_tq_build(Line, Pre0, AccVar, Els, St1);
+ _ ->
+ %% Any other safe (cons, tuple, literal) is not a
+ %% bitstring. Force the evaluation to fail (and
+ %% generate a warning).
+ Els = [{bin_element,Line,{atom,Line,bad_value},BsSize,BsFlags}],
+ bc_tq_build(Line, Pre0, AccVar, Els, St1)
+ end.
+
+bc_tq_build(Line, Pre0, #c_var{name=AccVar}, Elements0, St0) ->
+ Elements = [{bin_element,Line,{var,Line,AccVar},{atom,Line,all},
+ [binary,{unit,1}]}|Elements0],
+ {E,Pre,St} = expr({bin,Line,Elements}, St0),
#a{anno=A} = Anno0 = get_anno(E),
Anno = Anno0#a{anno=[compiler_generated,single_use|A]},
- {set_anno(E, Anno),Pre,St}.
+ {set_anno(E, Anno),Pre0++Pre,St}.
+
%% filter_tq(Line, Expr, Filter, Mc, State, [Qualifier], TqFun) ->
%% {Case,[PreExpr],State}.
@@ -1307,7 +1333,9 @@ bc_elem_size({bin,_,El}, St0) ->
Vs = [V || {_,#c_var{name=V}} <- Vars0],
{E,Pre,St} = bc_mul_pairs(F, #c_literal{val=Bits}, [], St0),
{E,Pre,Vs,St}
- end.
+ end;
+bc_elem_size(_, _) ->
+ throw(impossible).
bc_elem_size_1([{bin_element,_,_,{integer,_,N},Flags}|Es], Bits, Vars) ->
{unit,U} = keyfind(unit, 1, Flags),
@@ -1653,10 +1681,12 @@ pat_alias_map_pairs_1([]) -> [].
pat_bin(Ps, St) -> [pat_segment(P, St) || P <- Ps].
-pat_segment({bin_element,_,Val,Size,[Type,{unit,Unit}|Flags]}, St) ->
+pat_segment({bin_element,L,Val,Size,[Type,{unit,Unit}|Flags]}, St) ->
+ Anno = lineno_anno(L, St),
{Pval,[],St1} = pattern(Val,St),
{Psize,[],_St2} = pattern(Size,St1),
- #c_bitstr{val=Pval,size=Psize,
+ #c_bitstr{anno=Anno,
+ val=Pval,size=Psize,
unit=#c_literal{val=Unit},
type=#c_literal{val=Type},
flags=#c_literal{val=Flags}}.
@@ -1853,27 +1883,22 @@ uguard(Pg, Gs0, Ks, St0) ->
%% uexprs([Kexpr], [KnownVar], State) -> {[Kexpr],State}.
uexprs([#imatch{anno=A,pat=P0,arg=Arg,fc=Fc}|Les], Ks, St0) ->
- %% Optimise for simple set of unbound variable.
- case upattern(P0, Ks, St0) of
- {#c_var{},[],_Pvs,_Pus,_} ->
- %% Throw our work away and just set to iset.
+ case upat_is_new_var(P0, Ks) of
+ true ->
+ %% Assignment to a new variable.
uexprs([#iset{var=P0,arg=Arg}|Les], Ks, St0);
- _Other ->
- %% Throw our work away and set to icase.
- if
- Les =:= [] ->
- %% Need to explicitly return match "value", make
- %% safe for efficiency.
- {La0,Lps,St1} = force_safe(Arg, St0),
- La = mark_compiler_generated(La0),
- Mc = #iclause{anno=A,pats=[P0],guard=[],body=[La]},
- uexprs(Lps ++ [#icase{anno=A,
- args=[La0],clauses=[Mc],fc=Fc}], Ks, St1);
- true ->
- Mc = #iclause{anno=A,pats=[P0],guard=[],body=Les},
- uexprs([#icase{anno=A,args=[Arg],
- clauses=[Mc],fc=Fc}], Ks, St0)
- end
+ false when Les =:= [] ->
+ %% Need to explicitly return match "value", make
+ %% safe for efficiency.
+ {La0,Lps,St1} = force_safe(Arg, St0),
+ La = mark_compiler_generated(La0),
+ Mc = #iclause{anno=A,pats=[P0],guard=[],body=[La]},
+ uexprs(Lps ++ [#icase{anno=A,
+ args=[La0],clauses=[Mc],fc=Fc}], Ks, St1);
+ false ->
+ Mc = #iclause{anno=A,pats=[P0],guard=[],body=Les},
+ uexprs([#icase{anno=A,args=[Arg],
+ clauses=[Mc],fc=Fc}], Ks, St0)
end;
uexprs([Le0|Les0], Ks, St0) ->
{Le1,St1} = uexpr(Le0, Ks, St0),
@@ -1881,6 +1906,15 @@ uexprs([Le0|Les0], Ks, St0) ->
{[Le1|Les1],St2};
uexprs([], _, St) -> {[],St}.
+%% upat_is_new_var(Pattern, [KnownVar]) -> true|false.
+%% Test whether the pattern is a single, previously unknown
+%% variable.
+
+upat_is_new_var(#c_var{name=V}, Ks) ->
+ not is_element(V, Ks);
+upat_is_new_var(_, _) ->
+ false.
+
%% Mark a "safe" as compiler-generated.
mark_compiler_generated(#c_cons{anno=A,hd=H,tl=T}) ->
ann_c_cons([compiler_generated|A], mark_compiler_generated(H),
diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl
index 011748df3a..4446d5ff1d 100644
--- a/lib/compiler/src/v3_kernel.erl
+++ b/lib/compiler/src/v3_kernel.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2013. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -143,8 +143,10 @@ attributes([]) -> [].
include_attribute(type) -> false;
include_attribute(spec) -> false;
+include_attribute(callback) -> false;
include_attribute(opaque) -> false;
include_attribute(export_type) -> false;
+include_attribute(record) -> false;
include_attribute(_) -> true.
function({#c_var{name={F,Arity}=FA},Body}, St0) ->
diff --git a/lib/compiler/src/v3_kernel.hrl b/lib/compiler/src/v3_kernel.hrl
index 03b2eae006..5216a1a620 100644
--- a/lib/compiler/src/v3_kernel.hrl
+++ b/lib/compiler/src/v3_kernel.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/v3_kernel_pp.erl b/lib/compiler/src/v3_kernel_pp.erl
index 03b034ae98..0b90f0a1e0 100644
--- a/lib/compiler/src/v3_kernel_pp.erl
+++ b/lib/compiler/src/v3_kernel_pp.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/v3_life.erl b/lib/compiler/src/v3_life.erl
index fa057ae211..1452b78d1d 100644
--- a/lib/compiler/src/v3_life.erl
+++ b/lib/compiler/src/v3_life.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2012. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
diff --git a/lib/compiler/src/v3_life.hrl b/lib/compiler/src/v3_life.hrl
index 29a08f8c72..9d03a86ccd 100644
--- a/lib/compiler/src/v3_life.hrl
+++ b/lib/compiler/src/v3_life.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.