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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2006-2009. 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(misc_SUITE).
+
+-export([all/1,init_per_testcase/2,fin_per_testcase/2,
+ tobias/1,empty_string/1,md5/1,silly_coverage/1,
+ confused_literals/1,integer_encoding/1]).
+
+-include("test_server.hrl").
+
+init_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
+ Dog = test_server:timetrap(?t:minutes(10)),
+ [{watchdog,Dog}|Config].
+
+fin_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
+ Dog = ?config(watchdog, Config),
+ ?t:timetrap_cancel(Dog),
+ ok.
+
+all(suite) ->
+ test_lib:recompile(?MODULE),
+ [tobias,empty_string,md5,silly_coverage,confused_literals,
+ integer_encoding].
+
+%% A bug reported by Tobias Lindahl for a development version of R11B.
+
+tobias(Config) when is_list(Config) ->
+ ?line 1 = tobias_1([1,2,3]),
+ ok.
+
+tobias_1([H|_T]) ->
+ %% In an R11B compiler, the move optimizer in beam_block would
+ %% confuse H and _T.
+ tobias_2(0, 0),
+ H.
+
+tobias_2(_, _) ->
+ 2.
+
+
+%% A bug reported by Richard Carlsson. Used to crash beam_asm
+%% because of a put_string instruction with an empty string.
+%% The real problem was in sys_core_fold (empty strings should
+%% be replaced by []).
+
+-record(r, {s = ""}).
+
+empty_string(Config) when is_list(Config) ->
+ ?line #r{s="x"} = empty_string_1(#r{}),
+ ok.
+
+empty_string_1(T) ->
+ case T of
+ #r{s = ""} -> T #r{s = "x"}
+ end.
+
+md5(Config) when is_list(Config) ->
+ case ?MODULE of
+ misc_SUITE -> md5();
+ _ -> {skip,"Enough to run this case once."}
+ end.
+
+md5() ->
+ ?line Dir = filename:dirname(code:which(?MODULE)),
+ ?line Beams = filelib:wildcard(filename:join(Dir, "*.beam")),
+ ?line io:format("Found ~w beam files", [length(Beams)]),
+ ?line lists:foreach(fun md5_1/1, Beams).
+
+md5_1(Beam) ->
+ ?line {ok,{Mod,[Vsn]}} = beam_lib:version(Beam),
+ ?line {ok,Code} = file:read_file(Beam),
+ ?line {Mod,<<Vsn:128>>} = {Mod,code:module_md5(Code)}.
+
+%% Cover some code that handles internal errors.
+
+silly_coverage(Config) when is_list(Config) ->
+ %% sys_core_fold, sys_core_setel, v3_kernel
+ BadCoreErlang = {c_module,[],
+ name,exports,attrs,
+ [{{c_var,[],{foo,2}},seriously_bad_body}]},
+ ?line expect_error(fun() -> sys_core_fold:module(BadCoreErlang, []) end),
+ ?line expect_error(fun() -> sys_core_dsetel:module(BadCoreErlang, []) end),
+ ?line expect_error(fun() -> v3_kernel:module(BadCoreErlang, []) end),
+
+ %% v3_codgen
+ CodegenInput = {?MODULE,[{foo,0}],[],[{function,foo,0,[a|b],a,b}]},
+ ?line expect_error(fun() -> v3_codegen:module(CodegenInput, []) end),
+
+ %% beam_block
+ BlockInput = {?MODULE,[{foo,0}],[],
+ [{function,foo,0,2,
+ [{label,1},
+ {func_info,{atom,?MODULE},{atom,foo},0},
+ {label,2}|non_proper_list],99}]},
+ ?line expect_error(fun() -> beam_block:module(BlockInput, []) end),
+
+ %% beam_bool
+ BoolInput = {?MODULE,[{foo,0}],[],
+ [{function,foo,0,2,
+ [{label,1},
+ {func_info,{atom,?MODULE},{atom,foo},0},
+ {label,2}|non_proper_list]}],99},
+ ?line expect_error(fun() -> beam_bool:module(BoolInput, []) end),
+
+ %% 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),
+
+ %% beam_clean
+ CleanInput = {?MODULE,[{foo,0}],[],
+ [{function,foo,0,2,
+ [{label,1},
+ {func_info,{atom,?MODULE},{atom,foo},0},
+ {label,2},
+ {jump,{f,42}}]}],99},
+ ?line expect_error(fun() -> beam_clean:module(CleanInput, []) end),
+
+ %% beam_peep
+ PeepInput = {?MODULE,[{foo,0}],[],
+ [{function,foo,0,2,
+ [{label,1},
+ {func_info,{atom,?MODULE},{atom,foo},0},
+ {label,2}|non_proper_list]}],99},
+ ?line expect_error(fun() -> beam_peep:module(PeepInput, []) end),
+
+ %% beam_bsm. This is tricky. Our function must be sane enough to not crash
+ %% btb_index/1, but must crash the main optimization pass.
+ BsmInput = {?MODULE,[{foo,0}],[],
+ [{function,foo,0,2,
+ [{label,1},
+ {func_info,{atom,?MODULE},{atom,foo},0},
+ {label,2},
+ {test,bs_get_binary2,{f,99},0,[{x,0},{atom,all},1,[]],{x,0}},
+ {block,[a|b]}]}],0},
+ ?line expect_error(fun() -> beam_bsm:module(BsmInput, []) end),
+ ok.
+
+expect_error(Fun) ->
+ try Fun() of
+ Any ->
+ io:format("~p", [Any]),
+ ?t:fail(call_was_supposed_to_fail)
+ catch
+ _:_ ->
+ io:format("~p\n", [erlang:get_stacktrace()])
+ end.
+
+confused_literals(Config) when is_list(Config) ->
+ ?line {0,infinity} = confused_literals_1(int),
+ ?line {0.0,infinity} = confused_literals_1(float),
+ ok.
+
+confused_literals_1(int) -> {0,infinity};
+confused_literals_1(float) -> {0.0,infinity}.
+
+integer_encoding(Config) when is_list(Config) ->
+ case ?MODULE of
+ misc_SUITE -> integer_encoding_1(Config);
+ _ -> {skip,"Enough to run this case once."}
+ end.
+
+integer_encoding_1(Config) ->
+ Dog = test_server:timetrap(?t:minutes(4)),
+ ?line PrivDir = ?config(priv_dir, Config),
+ ?line SrcFile = filename:join(PrivDir, "misc_SUITE_integer_encoding.erl"),
+ ?line DataFile = filename:join(PrivDir, "integer_encoding.data"),
+ Mod = misc_SUITE_integer_encoding,
+
+ %% Create files.
+ ?line {ok,Src} = file:open(SrcFile, [write]),
+ ?line {ok,Data} = file:open(DataFile, [write]),
+ io:format(Src, "-module(~s).\n", [Mod]),
+ io:put_chars(Src, "-export([t/1]).\n"),
+ io:put_chars(Src, "t(Last) ->[\n"),
+ io:put_chars(Data, "[\n"),
+
+ ?line do_integer_encoding(-(id(1) bsl 10000), Src, Data),
+ ?line do_integer_encoding(id(1) bsl 10000, Src, Data),
+ ?line do_integer_encoding(2048, 0, Src, Data),
+
+ io:put_chars(Src, "Last].\n\n"),
+ ?line ok = file:close(Src),
+ io:put_chars(Data, "0].\n\n"),
+ ?line ok = file:close(Data),
+
+ %% Compile and load Erlang module.
+ ?line SrcRoot = filename:rootname(SrcFile),
+ ?line {ok,Mod,Binary} = compile:file(SrcRoot, [binary,report]),
+ ?line {module,Mod} = code:load_binary(Mod, SrcRoot, Binary),
+
+ %% Compare lists.
+ ?line List = Mod:t(0),
+ ?line {ok,[List]} = file:consult(DataFile),
+ OneBsl10000 = id(1) bsl 10000,
+ ?line [-(1 bsl 10000),OneBsl10000|_] = List,
+
+ %% Cleanup.
+ ?line file:delete(SrcFile),
+ ?line file:delete(DataFile),
+ ?t:timetrap_cancel(Dog),
+ ok.
+
+do_integer_encoding(0, _, _, _) -> ok;
+do_integer_encoding(N, I0, Src, Data) ->
+ I1 = (I0 bsl 5) bor (random:uniform(32) - 1),
+ do_integer_encoding(I1, Src, Data),
+ I2 = -(I1 bxor (random:uniform(32) - 1)),
+ do_integer_encoding(I2, Src, Data),
+ do_integer_encoding(N-1, I1, Src, Data).
+
+do_integer_encoding(I, Src, Data) ->
+ Str = integer_to_list(I),
+ io:put_chars(Src, Str),
+ io:put_chars(Src, ", \n"),
+ io:put_chars(Data, Str),
+ io:put_chars(Data, ", \n").
+
+
+id(I) -> I.
+
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