summaryrefslogtreecommitdiff
path: root/testsuite/tests/perf/compiler/all.T
blob: f6f52d737d23a1be29c4105a7ba6080244a0790e (plain)
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
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
def no_lint(name, opts):
   opts.compiler_always_flags = \
       [opt for opt in opts.compiler_always_flags if opt != '-dcore-lint' and opt != '-dcmm-lint']

setTestOpts(no_lint)


# Note [residency]
#
# Residency (peak_megabytes_allocated and max_bytes_used) is sensitive
# to when the major GC runs, which makes it inherently inaccurate.
# Sometime an innocuous change somewhere can shift things around such
# that the samples occur at a different time, and the residency
# appears to change (up or down) when the underlying profile hasn't
# really changed.
#
# However, please don't just ignore changes in residency.  If you see
# a change in one of these figures, please check whether it is real or
# not as follows:
#
#  * Run the test with old and new compilers, adding +RTS -h -i0.01
#    (you don't need to compile anything for profiling or enable profiling
#    libraries to get a heap profile).
#  * view the heap profiles, read off the maximum residency.  If it has
#    really changed, then you know there's an issue.

test('T1969',
     [compiler_stats_num_field('peak_megabytes_allocated', # Note [residency]
          [(wordsize(32), 17, 15),
             # 2010-05-17 14 (x86/Windows)
             #            15 (x86/OS X)
             #            19 (x86/OS X)
             # 2013-02-10 13 (x86/Windows)
             # 2013-02-10 14 (x86/OSX)
             # 2013-11-13 17 (x86/Windows, 64bit machine)
           (wordsize(64), 30, 20)]),
             #            28 (amd64/Linux)
             #            34 (amd64/Linux)
             # 2012-09-20 23 (amd64/Linux)
             # 2012-10-03 25 (amd64/Linux if .hi exists)
             # 2013-02-13 23, but unstable so increased to 10% range
             # 2013-02-13 27, very unstable!
             # 2014-09-10 29 (amd64/Linux) post-AMP-cleanup
             # 2013-09-11 30, 10 (amd64/Linux)
             # 2013-09-11 30, 15 (adapt to Phab CI)
      compiler_stats_num_field('max_bytes_used',
          [(platform('i386-unknown-mingw32'), 5719436, 20),
                                 # 2010-05-17 5717704 (x86/Windows)
                                 # 2013-02-10 5159748 (x86/Windows)
                                 # 2013-02-10 5030080 (x86/Windows)
                                 # 2013-11-13 7295012 (x86/Windows, 64bit machine)
                                 # 2014-04-24 5719436 (x86/Windows, 64bit machine)
           (wordsize(32), 5949188, 1),
             #            6707308 (x86/OS X)
             # 2009-12-31 6149572 (x86/Linux)
             # 2014-01-22 6429864 (x86/Linux)
             # 2014-06-29 5949188 (x86/Linux)
           (wordsize(64), 10000000, 15)]),
             # 2014-09-10 10463640, 10  # post-AMP-update (somewhat stabelish)
               # looks like the peak is around ~10M, but we're
               # unlikely to GC exactly on the peak.
               # varies quite a lot with CLEANUP and BINDIST,
               # hence 10% range.
               # See Note [residency] to get an accurate view.
             # 2014-09-14  9684256, 10 # try to lower it a bit more to match Phab's CI
             # 2014-11-03 10584344,    # ghcspeed reports higher numbers consistently
      compiler_stats_num_field('bytes allocated',
          [(platform('i386-unknown-mingw32'), 301784492, 5),
                                 #            215582916 (x86/Windows)
                                 # 2012-10-29 298921816 (x86/Windows)
                                 # 2013-02-10 310633884 (x86/Windows)
                                 # 2013-11-13 317975916 (x86/Windows, 64bit machine)
                                 # 2014-04-04 301784492 (x86/Windows, 64bit machine)
           (wordsize(32), 303300692, 1),
             #            221667908 (x86/OS X)
             #            274932264 (x86/Linux)
             # 2012-10-08 303930948 (x86/Linux, new codegen)
             # 2013-02-10 322937684 (x86/OSX)
             # 2014-01-22 316103268 (x86/Linux)
             # 2014-06-29 303300692 (x86/Linux)
           (wordsize(64), 630299456, 5)]),
             # 17/11/2009 434845560 (amd64/Linux)
             # 08/12/2009 459776680 (amd64/Linux)
             # 17/05/2010 519377728 (amd64/Linux)
             # 05/08/2011 561382568 (amd64/OS X)
             # 16/07/2012 589168872 (amd64/Linux)
             # 20/07/2012 595936240 (amd64/Linux)
             # 23/08/2012 606230880 (amd64/Linux)
             # 29/08/2012 633334184 (amd64/Linux) new codegen
             # 18/09/2012 641959976 (amd64/Linux)
             # 19/10/2012 661832592 (amd64/Linux) -fPIC turned on
             # 23/10/2012 642594312 (amd64/Linux) -fPIC turned off again
             # 12/11/2012 658786936 (amd64/Linux) UNKNOWN REASON
             # 17/1/13:   667160192 (x86_64/Linux) new demand analyser
             # 18/10/2013 698612512 (x86_64/Linux) fix for #8456
             # 10/02/2014 660922376 (x86_64/Linux) call arity analysis
             # 17/07/2014 651626680 (x86_64/Linux) roundabout update
             # 10/09/2014 630299456 (x86_64/Linux) post-AMP-cleanup
      only_ways(['normal']),

      extra_hc_opts('-dcore-lint -static')
          # Leave -dcore-lint on for this one test, so that we have something
          # that will catch a regression in -dcore-lint performance.
      ],
     compile,
     [''])

# This one tests for the space leak in the native code generator,
# where it holds onto the entire asm output until the end.  The space
# leak reappears from time to time, so it's a good idea to have a test
# for it.  The residency of this test will jump by 10MB to 40MB or so
# on x86-64 if the space leak appears.

# Only run this one if we have an NCG:
if 'optasm' in config.compile_ways:
   conf_3294 = only_ways(['normal'])
else:
   conf_3294 = skip

test('T3294',
     [
      compiler_stats_num_field('max_bytes_used', # Note [residency]
          [(wordsize(32), 19882188, 15),
             #            17725476 (x86/OS X)
             #            14593500 (Windows)
             # 2013-02-10 20651576 (x86/Windows)
             # 2013-02-10 20772984 (x86/OSX)
             # 2013-11-13 24009436 (x86/Windows, 64bit machine)
             # 2014-04-24 19882188 (x86/Windows, 64bit machine)
           (wordsize(64), 40000000, 15)]),
             # prev:           25753192 (amd64/Linux)
             # 29/08/2012:     37724352 (amd64/Linux)
             #  (increase due to new codegen, see #7198)
             # 13/13/2012:     44894544 (amd64/Linux)
             #  (reason for increase unknown)
             # 15/5/2013:      36904752  (amd64/Linux)
             #  (reason for decrease unknown)
             # 29/5/2013:      43224080  (amd64/Linux)
             #  (reason for increase back to earlier value unknown)
             # 2014-07-14:     36670800  (amd64/Linux)
             #  (reason unknown, setting expected value somewhere in between)

      compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 1377050640, 5),
           # previous:     815479800  (x86/Linux)
           # (^ increase due to new codegen, see #7198)
           # 2012-10-08:  1373514844 (x86/Linux)
           # 2013-11-13: 1478325844  (x86/Windows, 64bit machine)
           # 2014-01-12: 1565185140  (x86/Linux)
           # 2013-04-04: 1377050640  (x86/Windows, 64bit machine)
           (wordsize(64), 2709595808, 5)]),
            # old:        1357587088 (amd64/Linux)
            # 29/08/2012: 2961778696 (amd64/Linux)
            # (^ increase due to new codegen, see #7198)
            # 18/09/2012: 2717327208 (amd64/Linux)
            # 08/06/2013: 2901451552 (amd64/Linux) (reason unknown)
            # 12/12/2013: 3083825616 (amd64/Linux) (reason unknown)
            # 18/02/2014: 2897630040 (amd64/Linux) (call arity improvements)
            # 12/03/2014: 2705289664 (amd64/Linux) (more call arity improvements)
            # 2014-17-07: 2671595512 (amd64/Linux) (round-about update)
            # 2014-09-10: 2709595808 (amd64/Linux) post-AMP cleanup
      conf_3294
      ],
     compile,
     [''])

test('T4801',
     [ # expect_broken(5224),
       # temporarily unbroken (#5227)
      compiler_stats_num_field('peak_megabytes_allocated',# Note [residency]
          [(platform('x86_64-apple-darwin'), 70, 1),
                           # expected value: 58 (amd64/OS X)
                           # 13/01/2014 - 70
           (wordsize(32), 30, 20),
           (wordsize(64), 48, 20)]),
            # prev:       50 (amd64/Linux)
            # 19/10/2012: 64 (amd64/Linux)
            #                (^ REASON UNKNOWN!)
            # 12/11/2012: 49 (amd64/Linux)
            #                (^ REASON UNKNOWN!)
            # 28/8/13:    60 (amd64/Linux)
            #                (^ REASON UNKNOWN!)
            # 2014-09-10: 55 post-AMP-cleanup
            # 2014-10-08: 62 (jumps between 55 and 71 observed -- GC tipping point?)
            # 2014-10-13: 48 stricter seqDmdType

      compiler_stats_num_field('bytes allocated',
          [(platform('x86_64-apple-darwin'), 464872776, 5),
                           # expected value: 510938976 (amd64/OS X):

           (wordsize(32), 185242032, 10),
           # prev:        185669232 (x86/OSX)
           # 2014-01-22:  211198056 (x86/Linux)
           # 2014-09-03:  185242032 (Windows laptop)
           (wordsize(64), 382056344, 10)]),
            # prev:       360243576 (amd64/Linux)
            # 19/10/2012: 447190832 (amd64/Linux) (-fPIC turned on)
            # 19/10/2012: 392409984 (amd64/Linux) (-fPIC turned off)
            # 2014-04-08: 362939272 (amd64/Linux) cumulation of various smaller improvements over recent commits
            # 2014-10-08: 382056344 (amd64/Linux) stricter foldr2 488e95b

###################################
# deactivated for now, as this metric became to volatile recently
#
#     compiler_stats_num_field('max_bytes_used',
#         [(platform('x86_64-apple-darwin'), 25145320, 5),
#          (wordsize(32), 11829000, 15),
#            #              9651948 (x86/OSX)
#            #              10290952 (windows)
#            # 2013-02-10   11071060 (x86/Windows)
#            # 2013-02-10:  11207828 (x86/OSX)
#            # (some date): 11139444
#            # 2013-11-13:  11829000 (x86/Windows, 64bit machine)
#          (wordsize(64), 19296544, 15)]),
#               # prev:       20486256 (amd64/OS X)
#               # 30/08/2012: 17305600--20391920 (varies a lot)
#               # 19/10/2012: 26882576 (-fPIC turned on)
#               # 19/10/2012: 18619912 (-fPIC turned off)
#               # 24/12/2012: 21657520 (perhaps gc sampling time wibbles?)
#               # 10/01/2014: 25166280
#               # 13/01/2014: 22646000 (mostly due to #8647)
#               # 18/02/2014: 25002136 (call arity analysis changes)
#               # 12/05/2014: 25002136 (specialisation and inlining changes)
#               # 10/09/2014: 19296544, 10 (post-AMP-cleanup)
#               # 14/09/2014: 19585456, 15 (adapt to Phab CI env)
       only_ways(['normal']),
       extra_hc_opts('-static')
      ],
     compile,
     [''])

test('T3064',
     [# expect_broken( 3064 ),
      compiler_stats_num_field('peak_megabytes_allocated',# Note [residency]
          [(wordsize(32), 23, 20),
            # expected value: 14 (x86/Linux 28-06-2012):
            # 2013-11-13:     18 (x86/Windows, 64bit machine)
            # 2014-01-22:     23 (x86/Linux)
           (wordsize(64), 38, 20)]),
            # (amd64/Linux):            18
            # (amd64/Linux) 2012-02-07: 26
            # (amd64/Linux) 2013-02-12: 23; increased range to 10%
            # (amd64/Linux) 2013-04-03: 26
            # (amd64/Linux) 2013-09-11: 30; result of AMP patch
            # Increased range to 20%.  peak-usage varies from 22 to 26,
            #  depending on whether the old .hi file exists
            # (amd64/Linux) 2013-09-11: 37; better arity analysis (weird)
            # (amd64/Linux) (09/09/2014): 42, AMP changes (larger interfaces, more loading)
            # (amd64/Linux) 2014-10-13: 38: Stricter seqDmdType

      compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 162457940, 10),
            # 2011-06-28: 56380288  (x86/Linux)
            # 2012-10-30: 111189536 (x86/Windows)
            # 2013-11-13: 146626504 (x86/Windows, 64bit machine)
            # 2014-01-22: 162457940 (x86/Linux)
           (wordsize(64), 385145080, 5)]),
            # (amd64/Linux) (28/06/2011):  73259544
            # (amd64/Linux) (07/02/2013): 224798696
            # (amd64/Linux) (02/08/2013): 236404384, increase from roles
            # (amd64/Linux) (11/09/2013): 290165632, increase from AMP warnings
            # (amd64/Linux) (22/11/2013): 308300448, GND via Coercible and counters for constraints solving
                # (amd64/Linux) (02/12/2013): 329795912, Coercible refactor
            # (amd64/Linux) (11/02/2014): 308422280, optimize Coercions in simpleOptExpr
            # (amd64/Linux) (23/05/2014): 324022680, unknown cause
            # (amd64/Linux) (2014-07-17): 332702112, general round of updates
            # (amd64/Linux) (2014-08-29): 313638592, w/w for INLINABLE things
            # (amd64/Linux) (09/09/2014): 407416464, AMP changes (larger interfaces, more loading)
            # (amd64/Linux) (14/09/2014): 385145080, BPP changes (more NoImplicitPrelude in base)

###################################
# deactivated for now, as this metric became too volatile recently
#
#      compiler_stats_num_field('max_bytes_used',
#          [(wordsize(32), 11202304, 20),
#            # 2011-06-28:  2247016 (x86/Linux) (28/6/2011):
#            #(some date):  5511604
#            # 2013-11-13:  7218200 (x86/Windows, 64bit machine)
#            # 2014-04-04: 11202304 (x86/Windows, 64bit machine)
#           (wordsize(64), 13251728, 20)]),
#            # (amd64/Linux, intree) (28/06/2011):  4032024
#            # (amd64/Linux, intree) (07/02/2013):  9819288
#            # (amd64/Linux)         (14/02/2013):  8687360
#            # (amd64/Linux)         (18/02/2013):  9397488
#            # (amd64/Linux)         (02/08/2013): 10742536, increase from roles
#            # (amd64/Linux)         (19/08/2013): 9211816,  decrease apparently from better eta reduction
#            # (amd64/Linux)         (11/09/2013): 12000480, increase from AMP warnings
#            #                                     933cdf15a2d85229d3df04b437da31fdfbf4961f
#            # (amd64/Linux)         (22/11/2013): 16266992, GND via Coercible and counters for constraints solving
#            # (amd64/Linux)         (12/12/2013): 19821544, better One shot analysis
#            # (amd64/Linux)         (09/09/2014): 24357392, AMP changes (larger interfaces, more loading)
#            # (amd64/Linux)         (14/09/2014): 16053888, BPP changes (more NoImplicitPrelude in base)
#            # (amd64/Linux)         (19/09/2014): 18744992, unknown
#            # (amd64/Linux)         2014-10-13:   13251728, Stricter seqDmdType

       only_ways(['normal'])
      ],
     compile,
     [''])

test('T4007',
     normal,
     run_command,
     ['$MAKE -s --no-print-directory T4007'])

test('T5030',
     [compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 198573456, 10),
           # previous:    196457520
           # 2012-10-08:  259547660 (x86/Linux, new codegen)
           # 2013-11-21:  198573456 (x86 Windows, 64 bit machine)
           (wordsize(64), 385152728, 10)]),
             # Previously 530000000 (+/- 10%)
             # 17/1/13:   602993184  (x86_64/Linux)
             #            (new demand analyser)
             # 2013-06-08 538467496  (x86_64/Linux)
             # ^ reason unknown
             # 2013-08-02 454498592  (amd64/Linux)
             # decrease from more aggressive coercion optimisations from roles
             # 2013-11-12 397672152  (amd64/Linux)
             # big decrease following better CSE and arity
             # 2014-07-17 409314320  (amd64/Linux)
             # general round of updates
             # 2014-09-10 385152728  post-AMP-cleanup

       only_ways(['normal'])
      ],
     compile,
     ['-fcontext-stack=300'])

test('T5631',
     [compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 346389856, 10),
        # expected value: 392904228 (x86/Linux)
        # 2014-04-04:     346389856 (x86 Windows, 64 bit machine)
           (wordsize(64), 776121120, 5)]),
        # expected value: 774595008 (amd64/Linux):
        # expected value: 735486328 (amd64/Linux) 2012/12/12:
        # expected value: 690742040 (amd64/Linux) Call Arity improvements
        # 2014-09-09:     739704712 (amd64/Linux) AMP changes
        # 2014-11-04:     776121120 (amd64/Linux) new-flatten-skolems
       only_ways(['normal'])
      ],
     compile,
     [''])

test('parsing001',
     [compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 274000576, 10),
           (wordsize(64), 587079016, 5)]),
        # expected value: 587079016 (amd64/Linux)
       only_ways(['normal']),
      ],
     compile_fail, [''])


test('T783',
     [ only_ways(['normal']),  # no optimisation for this one
      # expected value: 175,569,928 (x86/Linux)
      compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 223377364, 5),
            # 2012-10-08: 226907420 (x86/Linux)
            # 2013-02-10: 329202116 (x86/Windows)
            # 2013-02-10: 338465200 (x86/OSX)
            # 2014-04-04: 319179104 (x86 Windows, 64 bit machine)
            # 2014-09-03: 223377364 (Windows, better specialisation, raft of core-to-core optimisations)

           (wordsize(64), 441932632, 10)]),
            # prev:       349263216 (amd64/Linux)
            # 07/08/2012: 384479856 (amd64/Linux)
            # 29/08/2012: 436927840 (amd64/Linux)
            # 12/11/2012: 640324528 (amd64/Linux)
            #   (OldCmm removed: not sure why this got worse, the
            #    other perf tests remained about the same)
            # 18/10/2013: 734038080 (amd64/Linux)
            #   (fix for #8456)
            # 24/10/2013: 654804144 (amd64/Linux)
            #   (fix previous fix for #8456)
            # 2014-07-17: 640031840 (amd64/Linux)
            #   (general round of updates)
            # 2014-08-29: 441932632  (amd64/Linux)
            #   (better specialisation, raft of core-to-core optimisations)
      extra_hc_opts('-static')
      ],
      compile,[''])

test('T5321Fun',
     [ only_ways(['normal']),  # no optimisation for this one
       compiler_stats_num_field('bytes allocated',
           [(wordsize(32), 299656164, 10),
             # prev:       300000000
             # 2012-10-08: 344416344 x86/Linux
             #  (increase due to new codegen)
             # 2014-09-03: 299656164     (specialisation and inlining)
            (wordsize(64), 541287000, 10)])
             # prev:       585521080
             # 29/08/2012: 713385808     #  (increase due to new codegen)
             # 15/05/2013: 628341952     #  (reason for decrease unknown)
             # 24/06/2013: 694019152     #  (reason for re-increase unknown)
             # 12/05/2014: 614409344     #  (specialisation and inlining changes)
             # 10/09/2014: 601629032     #  post-AMP-cleanp
             # 06/11/2014: 541287000     #  Simon's flat-skol changes to the constraint solver
      ],
      compile,[''])

test('T5321FD',
     [ only_ways(['normal']),  # no optimisation for this one
      compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 211699816, 10),
            # prev:       213380256
            # 2012-10-08: 240302920 (x86/Linux)
            #  (increase due to new codegen)
            # 2014-07-31: 211699816 (Windows) (-11%)
            #  (due to better optCoercion, 5e7406d9, #9233)
           (wordsize(64), 410895536, 10)])
            # prev:       418306336
            # 29/08/2012: 492905640
            #  (increase due to new codegen)
            # 15/05/2013: 406039584
            #  (reason for decrease unknown)
            # 08/06/2013: 476497048
            #  (reason for increase unknown)
            # before 2014-07-17: 441997096
            #  (with -8%, still in range, hence cause not known)
            # 2014-07-17: 426960992 (-11% of previous value)
            #  (due to better optCoercion, 5e7406d9, #9233)
            # 2014-10-08  410895536
            #  (various changes; biggest improvements due to 949ad67 and FastString package ids)
      ],
      compile,[''])

test('T5642',
     [ only_ways(['normal']),
       compiler_stats_num_field('bytes allocated',
           [(wordsize(32), 753045568, 10),
                     # sample from x86/Linux
            # prev:        650000000
            # 2014-09-03:  753045568 
            (wordsize(64), 1536924976, 10)])
            # prev:        1300000000
            # 2014-07-17:  1358833928 (general round of updates)
            # 2014-08-07:  1402242360 (caused by 1fc60ea)
# Watch out for:
            # 23/05/2014:  1452688392 (More aggressive specialisation means we get
            #                          specialised copies of imported functions that
            #                          are ultimately discarded by trimAutoRules
            #                          It's a bizarre program with LOTS of data types)
            # 2014-09-10:  1536924976 post-AMP-cleanup
      ],
      compile,['-O'])

test('T5837',
     [ only_ways(['normal']),
      compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 37096484, 10),
             # 40000000 (x86/Linux)
             # 2013-11-13: 45520936 (x86/Windows, 64bit machine)
             # 2041-09-03: 37096484 (Windows laptop, w/w for INLINABLE things
           (wordsize(64), 271028976, 10)])
             # sample: 3926235424 (amd64/Linux, 15/2/2012)
             # 2012-10-02 81879216
             # 2012-09-20 87254264 amd64/Linux
             # 2013-09-18 90587232 amd64/Linux
             # 2013-11-21 86795752 amd64/Linux, GND via Coercible and counters
             #                                  for constraints solving
             # 2014-08-29 73639840 amd64/Linux, w/w for INLINABLE things
             # 2014-10-08 73639840 amd64/Linux, Burning Bridges and other small changes
             # 2014-11-06 271028976       Linux, Accept big regression;
             #   See Note [An alternative story for the inert substitution] in TcFlatten
      ],
      compile_fail,['-ftype-function-depth=50'])

test('T6048',
     [ only_ways(['optasm']),
      compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 56315812, 10),
            # prev:       38000000 (x86/Linux)
            # 2012-10-08: 48887164 (x86/Linux)
            # 2014-04-04: 62618072 (x86 Windows, 64 bit machine)
            # 2014-09-03: 56315812 (x86 Windows, w/w for INLINEAVBLE)
           (wordsize(64), 88186056, 12)])
             # 18/09/2012  97247032 amd64/Linux
             # 16/01/2014 108578664 amd64/Linux (unknown, likely foldl-via-foldr)
             # 18/01/2014  95960720 amd64/Linux Call Arity improvements
             # 28/02/2014 105556793 amd64/Linux (unknown, tweak in base/4d9e7c9e3 resulted in change)
             # 05/03/2014 110646312 amd64/Linux Call Arity became more elaborate
             # 14/07/2014 125431448 amd64/Linux unknown reason. Even worse in GHC-7.8.3. *shurg*
             # 29/08/2014 108354472 amd64/Linux w/w for INLINABLE things
             # 14/09/2014  88186056 amd64/Linux BPP part1 change (more NoImplicitPreludes in base)
      ],
      compile,[''])

test('T9020',
     [ only_ways(['optasm']),
      compiler_stats_num_field('bytes allocated',
          [(wordsize(32), 343005716, 10),
           # Original:    381360728
           # 2014-07-31:  343005716 (Windows) (general round of updates)
           (wordsize(64), 680162056, 10)])
           # prev:        795469104
           # 2014-07-17:  728263536 (general round of updates)
           # 2014-09-10:  785871680 post-AMP-cleanup
           # 2014-11-03:  680162056 Further Applicative and Monad adjustments
      ],
      compile,[''])

test('T9675',
     [ only_ways(['optasm']),
       compiler_stats_num_field('max_bytes_used',
          [(wordsize(64), 22220552, 25),
          # 2014-10-13    29596552
          # 2014-10-13    26570896   seq the DmdEnv in seqDmdType as well
          # 2014-10-13    18582472   different machines giving different results..
          # 2014-10-13    22220552   use the mean
          ]),
       compiler_stats_num_field('peak_megabytes_allocated',
          [(wordsize(64), 53, 15),
          # 2014-10-13    66
          # 2014-10-13    58         seq the DmdEnv in seqDmdType as well
          # 2014-10-13    49         different machines giving different results...
          # 2014-10-13    53         use the mean
          ]),
       compiler_stats_num_field('bytes allocated',
          [(wordsize(64), 544489040, 10)
          # 2014-10-13    544489040
          ]),
      ],
     compile,
     [''])