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-rw-r--r--lib/compiler/src/Makefile1
-rw-r--r--lib/compiler/src/beam_disasm.erl3
-rw-r--r--lib/compiler/src/beam_record.erl106
-rw-r--r--lib/compiler/src/beam_validator.erl3
-rw-r--r--lib/compiler/src/compile.erl17
-rw-r--r--lib/compiler/src/compiler.app.src1
-rwxr-xr-xlib/compiler/src/genop.tab6
7 files changed, 130 insertions, 7 deletions
diff --git a/lib/compiler/src/Makefile b/lib/compiler/src/Makefile
index cf60355a40..59b80ade5d 100644
--- a/lib/compiler/src/Makefile
+++ b/lib/compiler/src/Makefile
@@ -63,6 +63,7 @@ MODULES = \
beam_peep \
beam_receive \
beam_reorder \
+ beam_record \
beam_split \
beam_trim \
beam_type \
diff --git a/lib/compiler/src/beam_disasm.erl b/lib/compiler/src/beam_disasm.erl
index c699672db1..8fd0b36d05 100644
--- a/lib/compiler/src/beam_disasm.erl
+++ b/lib/compiler/src/beam_disasm.erl
@@ -815,6 +815,9 @@ resolve_inst({is_tuple=I,Args0},_,_,_) ->
resolve_inst({test_arity=I,Args0},_,_,_) ->
[L|Args] = resolve_args(Args0),
{test,I,L,Args};
+resolve_inst({is_tagged_tuple=I,Args0},_,_,_) ->
+ [F|Args] = resolve_args(Args0),
+ {test,I,F,Args};
resolve_inst({select_val,Args},_,_,_) ->
[Reg,FLbl,{{z,1},{u,_Len},List0}] = Args,
List = resolve_args(List0),
diff --git a/lib/compiler/src/beam_record.erl b/lib/compiler/src/beam_record.erl
new file mode 100644
index 0000000000..419089b1bc
--- /dev/null
+++ b/lib/compiler/src/beam_record.erl
@@ -0,0 +1,106 @@
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014-2017. 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%
+%%
+%% File: beam_record.erl
+%% Author: Björn-Egil Dahlberg
+%% Created: 2014-09-03
+%%
+
+-module(beam_record).
+-export([module/2]).
+
+%% Rewrite the instruction stream on tagged tuple tests.
+%% Tagged tuples means a tuple of any arity with an atom as its first element.
+%% Typically records, ok-tuples and error-tuples.
+%%
+%% from:
+%% ...
+%% {test,is_tuple,Fail,[Src]}.
+%% {test,test_arity,Fail,[Src,Sz]}.
+%% ...
+%% {get_tuple_element,Src,0,Dst}.
+%% ...
+%% {test,is_eq_exact,Fail,[Dst,Atom]}.
+%% ...
+%% to:
+%% ...
+%% {test,is_tagged_tuple,Fail,[Src,Sz,Atom]}.
+%% ...
+
+
+-import(lists, [reverse/1]).
+
+-spec module(beam_utils:module_code(), [compile:option()]) ->
+ {'ok',beam_utils:module_code()}.
+
+module({Mod,Exp,Attr,Fs0,Lc}, _Opt) ->
+ Fs = [function(F) || F <- Fs0],
+ {ok,{Mod,Exp,Attr,Fs,Lc}}.
+
+function({function,Name,Arity,CLabel,Is}) ->
+ try
+ Idx = beam_utils:index_labels(Is),
+ {function,Name,Arity,CLabel,rewrite(Is,Idx)}
+ catch
+ Class:Error ->
+ Stack = erlang:get_stacktrace(),
+ io:fwrite("Function: ~w/~w\n", [Name,Arity]),
+ erlang:raise(Class, Error, Stack)
+ end.
+
+rewrite(Is,Idx) ->
+ rewrite(Is,Idx,[]).
+
+rewrite([{test,is_tuple,Fail,[Src]}=I1,
+ {test,test_arity,Fail,[Src,N]}=I2|Is],Idx,Acc) ->
+ case is_tagged_tuple(Is,Fail,Src,Idx) of
+ no ->
+ rewrite(Is,Idx,[I2,I1|Acc]);
+ {Atom,[{block,[]}|Is1]} ->
+ rewrite(Is1,Idx,[{test,is_tagged_tuple,Fail,[Src,N,Atom]}|Acc]);
+ {Atom,Is1} ->
+ rewrite(Is1,Idx,[{test,is_tagged_tuple,Fail,[Src,N,Atom]}|Acc])
+ end;
+rewrite([I|Is],Idx,Acc) ->
+ rewrite(Is,Idx,[I|Acc]);
+rewrite([],_,Acc) -> reverse(Acc).
+
+is_tagged_tuple([{block,[{set,[Dst],[Src],{get_tuple_element,0}}=B|Bs]},
+ {test,is_eq_exact,Fail,[Dst,{atom,_}=Atom]}|Is],Fail,Src,Idx) ->
+
+ %% if Dst is killed in the instruction stream and at fail label,
+ %% we can safely remove get_tuple_element.
+ %%
+ %% if Dst is not killed in the stream, we cannot remove get_tuple_element
+ %% since it is referenced.
+
+ case is_killed(Dst,Is,Fail,Idx) of
+ true -> {Atom,[{block,Bs}|Is]};
+ false -> {Atom,[{block,[B|Bs]}|Is]}
+ end;
+is_tagged_tuple([{block,[{set,_,_,_}=B|Bs]},
+ {test,is_eq_exact,_,_}=I|Is],Fail,Src,Idx) ->
+ case is_tagged_tuple([{block,Bs},I|Is],Fail,Src,Idx) of
+ {Atom,[{block,Bsr}|Isr]} -> {Atom,[{block,[B|Bsr]}|Isr]};
+ no -> no
+ end;
+is_tagged_tuple(_Is,_Fail,_Src,_Idx) ->
+ no.
+
+is_killed(Dst,Is,{_,Lbl},Idx) ->
+ beam_utils:is_killed(Dst,Is,Idx) andalso
+ beam_utils:is_killed_at(Dst,Lbl,Idx).
diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl
index bf33ae0aeb..c26e5719aa 100644
--- a/lib/compiler/src/beam_validator.erl
+++ b/lib/compiler/src/beam_validator.erl
@@ -653,6 +653,9 @@ valfun_4({test,is_nonempty_list,{f,Lbl},[Cons]}, Vst) ->
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,is_tagged_tuple,{f,Lbl},[Src,Sz,_Atom]}, Vst) ->
+ validate_src([Src], Vst),
+ set_type_reg({tuple, Sz}, Src, branch_state(Lbl, Vst));
valfun_4({test,has_map_fields,{f,Lbl},Src,{list,List}}, Vst) ->
assert_type(map, Src, Vst),
assert_unique_map_keys(List),
diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl
index c849306c0d..03b52932d1 100644
--- a/lib/compiler/src/compile.erl
+++ b/lib/compiler/src/compile.erl
@@ -216,19 +216,19 @@ expand_opt(return, Os) ->
expand_opt(r12, Os) ->
[no_recv_opt,no_line_info,no_utf8_atoms|Os];
expand_opt(r13, Os) ->
- [no_recv_opt,no_line_info,no_utf8_atoms|Os];
+ [no_record_opt,no_recv_opt,no_line_info,no_utf8_atoms|Os];
expand_opt(r14, Os) ->
- [no_line_info,no_utf8_atoms|Os];
+ [no_record_opt,no_line_info,no_utf8_atoms|Os];
expand_opt(r15, Os) ->
- [no_utf8_atoms|Os];
+ [no_record_opt,no_utf8_atoms|Os];
expand_opt(r16, Os) ->
- [no_utf8_atoms|Os];
+ [no_record_opt,no_utf8_atoms|Os];
expand_opt(r17, Os) ->
- [no_utf8_atoms|Os];
+ [no_record_opt,no_utf8_atoms|Os];
expand_opt(r18, Os) ->
- [no_utf8_atoms|Os];
+ [no_record_opt,no_utf8_atoms|Os];
expand_opt(r19, Os) ->
- [no_utf8_atoms|Os];
+ [no_record_opt,no_utf8_atoms|Os];
expand_opt({debug_info_key,_}=O, Os) ->
[encrypt_debug_info,O|Os];
expand_opt(no_float_opt, Os) ->
@@ -755,6 +755,8 @@ asm_passes() ->
{iff,dbsm,{listing,"bsm"}},
{unless,no_recv_opt,{pass,beam_receive}},
{iff,drecv,{listing,"recv"}},
+ {unless,no_record_opt,{pass,beam_record}},
+ {iff,drecord,{listing,"record"}},
{unless,no_stack_trimming,{pass,beam_trim}},
{iff,dtrim,{listing,"trim"}},
{pass,beam_flatten}]},
@@ -1849,6 +1851,7 @@ pre_load() ->
beam_opcodes,
beam_peep,
beam_receive,
+ beam_record,
beam_reorder,
beam_split,
beam_trim,
diff --git a/lib/compiler/src/compiler.app.src b/lib/compiler/src/compiler.app.src
index 3cb991687b..3961b2af86 100644
--- a/lib/compiler/src/compiler.app.src
+++ b/lib/compiler/src/compiler.app.src
@@ -38,6 +38,7 @@
beam_peep,
beam_receive,
beam_reorder,
+ beam_record,
beam_split,
beam_trim,
beam_type,
diff --git a/lib/compiler/src/genop.tab b/lib/compiler/src/genop.tab
index dcbdeb32e6..5e0c2b3ebf 100755
--- a/lib/compiler/src/genop.tab
+++ b/lib/compiler/src/genop.tab
@@ -537,3 +537,9 @@ BEAM_FORMAT_NUMBER=0
156: is_map/2
157: has_map_fields/3
158: get_map_elements/3
+
+## @spec is_tagged_tuple Lbl Reg N Atom
+## @doc Test the type of Reg and jumps to Lbl if it is not a tuple.
+## Test the arity of Reg and jumps to Lbl if it is not N.
+## Test the first element of the tuple and jumps to Lbl if it is not Atom.
+159: is_tagged_tuple/4
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 08:00:53 +0000