aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/test/beam_SUITE.erl
blob: c55420666cd69b17a22e6b8b282b7890d7038e55 (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
%%
%% %CopyrightBegin%
%%
%% 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.
%% 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(beam_SUITE).

-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
	 init_per_group/2,end_per_group/2, 
	 packed_registers/1, apply_last/1, apply_last_bif/1,
	 buildo_mucho/1, heap_sizes/1, big_lists/1, fconv/1,
	 select_val/1]).

-export([applied/2]).

-include_lib("common_test/include/ct.hrl").

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

all() -> 
    [packed_registers, apply_last, apply_last_bif,
     buildo_mucho, heap_sizes, big_lists, select_val].

groups() -> 
    [].

init_per_suite(Config) ->
    Config.

end_per_suite(_Config) ->
    ok.

init_per_group(_GroupName, Config) ->
    Config.

end_per_group(_GroupName, Config) ->
    Config.



%% Verify that apply(M, F, A) is really tail recursive.
apply_last(Config) when is_list(Config) ->
    Pid  = spawn(?MODULE, applied, [self(), 10000]),
    Size =
	receive
	    {Pid, finished} ->
		stack_size(Pid)
	after 30000 ->
		ct:fail("applied/2 timed out.")
	end,
    Pid ! die,
    io:format("Size: ~p~n", [Size]),
    if
	Size < 700 ->
	    ok;
	true ->
	    ct:fail("10000 apply() grew stack too much.")
    end,
    ok.

stack_size(Pid) ->
    {heap_size, HS}=process_info(Pid, heap_size),
    {stack_size,SS}=process_info(Pid, stack_size),
    HS+SS.

applied(Starter, 0) ->
    Starter ! {self(), finished},
    receive
	die ->
	    ok
    end,
    ok;
applied(Starter, N) ->
    apply(?MODULE, applied, [Starter, N-1]).

%% Verify that tail-recursive use of apply(M,F,A) on a Bif works."
apply_last_bif(Config) when is_list(Config) ->
    apply(erlang, abs, [1]).

%% Test three high register numbers in a put_list instruction
%% (to test whether packing works properly).
packed_registers(Config) when is_list(Config) ->
    PrivDir = proplists:get_value(priv_dir, Config),
    Mod = packed_regs,
    Name = filename:join(PrivDir, atom_to_list(Mod) ++ ".erl"),

    %% Generate a module which generates a list of tuples.
    %% put_list(A) -> [{A, 600}, {A, 999}, ... {A, 0}].
    Code = gen_packed_regs(600, ["-module("++atom_to_list(Mod)++").\n",
				       "-export([put_list/1]).\n",
				       "put_list(A) ->\n["]),
    ok = file:write_file(Name, Code),

    %% Compile the module.
    io:format("Compiling: ~s\n", [Name]),
    CompRc = compile:file(Name, [{outdir, PrivDir}, report]),
    io:format("Result: ~p\n",[CompRc]),
    {ok, Mod} = CompRc,

    %% Load it.
    io:format("Loading...\n",[]),
    LoadRc = code:load_abs(filename:join(PrivDir, atom_to_list(Mod))),
    {module,_Module} = LoadRc,

    %% Call it and verify result.
    Term = {a, b},
    L = Mod:put_list(Term),
    verify_packed_regs(L, Term, 600),
    ok.

gen_packed_regs(0, Acc) ->
    [Acc|"{A,0}].\n"];
gen_packed_regs(N, Acc) ->
    gen_packed_regs(N-1, [Acc,"{A,",integer_to_list(N)|"},\n"]).

verify_packed_regs([], _, -1) -> ok;
verify_packed_regs([{Term, N}| T], Term, N) ->
    verify_packed_regs(T, Term, N-1);
verify_packed_regs(L, Term, N) ->
    ct:fail("Expected [{~p, ~p}|T]; got\n~p\n", [Term, N, L]).

buildo_mucho(Config) when is_list(Config) ->
    buildo_mucho_1(),
    ok.

buildo_mucho_1() ->
    %% Thanks to Per Gustafsson, HiPE.
    [{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},
     {<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1},{<<>>,1}].

heap_sizes(Config) when is_list(Config) ->
    Sizes = erlang:system_info(heap_sizes),
    io:format("~p heap sizes\n", [length(Sizes)]),
    io:format("~p\n", [Sizes]),

    %% Verify that heap sizes increase monotonically.
    Largest = lists:foldl(fun(E, P) when is_integer(P), E > P -> E;
				   (E, []) -> E
				end, [], Sizes),

    %% Verify that the largest heap size consists of
    %%  - 31 bits of bytes on 32 bits arch
    %%  - atleast 52 bits of bytes (48 is the maximum virtual address)
    %%    and at the most 63 bits on 64 bit archs
    %% heap sizes are in words
    case erlang:system_info(wordsize) of
	8 ->
	    0    = (Largest*8) bsr 63,
	    true = (Largest*8) > (1 bsl 52);
	4 ->
	    1 = (Largest*4) bsr 31
    end,
    ok.

%% Thanks to Igor Goryachev.

big_lists(Config) when is_list(Config) ->
    b(),
    ok.

a() ->
    {selected,
     ["uid",
      "nickname",
      "n_family",
      "n_given",
      "email_pref",
      "tel_home_number",
      "tel_cellular_number",
      "adr_home_country",
      "adr_home_locality",
      "adr_home_region",
      "url",
      "gender",
      "bday",
      "constitution",
      "height",
      "weight",
      "hair",
      "routine",
      "smoke",
      "maritalstatus",
      "children",
      "independence",
      "school_number",
      "school_locality",
      "school_title",
      "school_period",
      "org_orgname",
      "title",
      "adr_work_locality",
      "photo_type",
      "photo_binval"],
     [{"test"}]}.

b() ->
    case a() of
        {selected,
         ["uid",
          "nickname",
          "n_family",
          "n_given",
          "email_pref",
          "tel_home_number",
          "tel_cellular_number",
          "adr_home_country",
          "adr_home_locality",
          "adr_home_region",
          "url",
          "gender",
          "bday",
          "constitution",
          "height",
          "weight",
          "hair",
          "routine",
          "smoke",
          "maritalstatus",
          "children",
          "independence",
          "school_number",
          "school_locality",
          "school_title",
          "school_period",
          "org_orgname",
          "title",
          "adr_work_locality",
          "photo_type",
          "photo_binval"],
         _} ->
	    ok
    end.

fconv(Config) when is_list(Config) ->
    do_fconv(atom),
    do_fconv(nil),
    do_fconv(tuple_literal),
    3.0 = do_fconv(1.0, 2.0),
    ok.

do_fconv(Type) ->
    try
	do_fconv(Type, 1.0),
	ct:fail(no_badarith)
    catch
	error:badarith ->
	    ok
    end.

do_fconv(atom, Float) when is_float(Float) ->
    Float + a;
do_fconv(nil, Float) when is_float(Float) ->
    Float + [];
do_fconv(tuple_literal, Float) when is_float(Float) ->
    Float + {a,b}.

select_val(Config) when is_list(Config) ->
    zero = do_select_val(0),
    big = do_select_val(1 bsl 64),
    integer = do_select_val(42),
    ok.

do_select_val(X) ->
    case X of
	0 ->
	    zero;
	1 bsl 64 ->
	    big;
	Int when is_integer(Int) ->
	    integer
    end.