aboutsummaryrefslogtreecommitdiffstats
path: root/lib/compiler/test/misc_SUITE.erl
blob: ce6c21ed762ec53738c0de58d6354a7dd664e318 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2006-2012. 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.
%% You may obtain a copy of the License at
%%
%%     http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
-module(misc_SUITE).

-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,
	 tobias/1,empty_string/1,md5/1,silly_coverage/1,
	 confused_literals/1,integer_encoding/1,override_bif/1]).
	 
-include_lib("common_test/include/ct.hrl").

%% For the override_bif testcase.
%% NB, no other testcases in this testsuite can use these without erlang:prefix!
-compile({no_auto_import,[abs/1]}).
-compile({no_auto_import,[binary_part/3]}).
-compile({no_auto_import,[binary_part/2]}).
-import(test_lib,[binary_part/2]).

%% This should do no harm (except for fun byte_size/1 which does not, by design, work with import
-compile({no_auto_import,[byte_size/1]}).
-import(erlang,[byte_size/1]).

%% Cover the code for callback handling.
-callback must_define_this_one() -> 'ok'.
-callback do_something_strange(atom()) -> 'ok'.
-optional_callbacks([do_something_strange/1]).
-optional_callbacks([ignore_me]).		%Invalid; ignored.

%% Include an opaque declaration to cover the stripping of
%% opaque types from attributes in v3_kernel.
-opaque misc_SUITE_test_cases() :: [atom()].

init_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
    Config.

end_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
    ok.

suite() ->
    [{ct_hooks,[ts_install_cth]},
     {timetrap,{minutes,10}}].

-spec all() -> misc_SUITE_test_cases().
all() -> 
    test_lib:recompile(?MODULE),
    [{group,p}].

groups() -> 
    [{p,[],
      [tobias,empty_string,md5,silly_coverage,
       confused_literals,integer_encoding,override_bif]}].

init_per_suite(Config) ->
    Config.

end_per_suite(_Config) ->
    ok.

init_per_group(_GroupName, Config) ->
    Config.

end_per_group(_GroupName, Config) ->
    Config.



%%
%% Functions that override new and old bif's
%%
abs(_N) ->
    dummy_abs.

binary_part(_,_,_) ->
    dummy_bp.

% Make sure that auto-imported BIF's are overridden correctly

override_bif(suite) ->
    [];
override_bif(doc) ->
    ["Test dat local functions and imports override auto-imported BIFs."];
override_bif(Config) when is_list(Config) ->
    ?line dummy_abs = abs(1),
    ?line dummy_bp = binary_part(<<"hello">>,1,1),
    ?line dummy = binary_part(<<"hello">>,{1,1}),
    ?line 1 = erlang:abs(1),
    ?line <<"e">> = erlang:binary_part(<<"hello">>,1,1),
    ?line <<"e">> = erlang:binary_part(<<"hello">>,{1,1}),
    F = fun(X) when byte_size(X) =:= 4 ->
		four;
	   (X) ->
		byte_size(X)
	end,
    ?line four = F(<<1,2,3,4>>),
    ?line 5 = F(<<1,2,3,4,5>>),
    ok.

%% 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,[],[],
		     [{{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_life
    BadKernel = {k_mdef,[],?MODULE,
		 [{foo,0}],
		 [],
		 [{k_fdef,
		   {k,[],[],[]},
		   f,0,[],
		   seriously_bad_body}]},
    ?line expect_error(fun() -> v3_life:module(BadKernel, []) end),

    %% v3_codegen
    CodegenInput = {?MODULE,[{foo,0}],[],[{function,foo,0,[a|b],a,b,[]}]},
    ?line expect_error(fun() -> v3_codegen:module(CodegenInput, []) end),

    %% beam_a
    BeamAInput = {?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_a:module(BeamAInput, []) end),

    %% beam_reorder
    BlockInput = {?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_reorder:module(BlockInput, []) 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_bs
    BsInput = BlockInput,
    expect_error(fun() -> beam_bs:module(BsInput, []) end),

    %% beam_type
    TypeInput = {?MODULE,[{foo,0}],[],
		   [{function,foo,0,2,
		     [{label,1},
		      {line,loc},
		      {func_info,{atom,?MODULE},{atom,foo},0},
		      {label,2}|non_proper_list]}],99},
    expect_error(fun() -> beam_type:module(TypeInput, []) end),

    %% beam_except
    ExceptInput = {?MODULE,[{foo,0}],[],
		   [{function,foo,0,2,
		     [{label,1},
		      {line,loc},
		      {func_info,{atom,?MODULE},{atom,foo},0},
		      {label,2}|non_proper_list]}],99},
    expect_error(fun() -> beam_except:module(ExceptInput, []) 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. 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},
		     {test,is_eq_exact,{f,1},[bad,operands]}]}],99},
    expect_error(fun() -> beam_dead: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),

    %% beam_receive.
    ReceiveInput = {?MODULE,[{foo,0}],[],
		    [{function,foo,0,2,
		      [{label,1},
		       {func_info,{atom,?MODULE},{atom,foo},0},
		       {label,2},
		       {call_ext,0,{extfunc,erlang,make_ref,0}},
		       {block,[a|b]}]}],0},
    ?line expect_error(fun() -> beam_receive:module(ReceiveInput, []) end),

    BeamZInput = {?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_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) ->
    try	Fun() of
	Any ->
	    io:format("~p", [Any]),
	    ?t:fail(call_was_supposed_to_fail)
    catch
	Class:Reason ->
	    Stk = erlang:get_stacktrace(),
	    io:format("~p:~p\n~p\n", [Class,Reason,Stk]),
	    case {Class,Reason} of
		{error,undef} ->
		    ?t:fail(not_supposed_to_fail_with_undef);
		{_,_} ->
		    ok
	    end
    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() ->
    [{timetrap,{minutes,4}}].

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) ->
    PrivDir = proplists:get_value(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),
    do_integer_encoding(1024, 0, Src, Data),
    _ = [begin
	     B = 1 bsl I,
	     do_integer_encoding(-B-1, Src, Data),
	     do_integer_encoding(-B, Src, Data),
	     do_integer_encoding(-B+1, Src, Data),
	     do_integer_encoding(B-1, Src, Data),
	     do_integer_encoding(B, Src, Data),
	     do_integer_encoding(B+1, Src, Data)
	 end || I <- lists:seq(1, 128)],
    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),
    ok.

do_integer_encoding(0, _, _, _) -> ok;
do_integer_encoding(N, I0, Src, Data) ->
    I1 = (I0 bsl 5) bor (rand:uniform(32) - 1),
    do_integer_encoding(I1, Src, Data),
    I2 = -(I1 bxor (rand: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,",\n"]),
    io:put_chars(Data, [Str,",\n"]).

    
id(I) -> I.