File: lto.exp

package info (click to toggle)
binutils 2.31.1-14
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 308,776 kB
  • sloc: ansic: 1,161,196; asm: 638,508; cpp: 128,829; exp: 68,562; makefile: 55,828; sh: 22,360; yacc: 14,238; lisp: 13,272; perl: 2,111; ada: 1,681; lex: 1,652; pascal: 1,446; cs: 879; sed: 195; python: 154; xml: 95; awk: 25
file content (702 lines) | stat: -rw-r--r-- 24,743 bytes parent folder | download | duplicates (5)
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
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
# Expect script for ld-plugin LTO tests
#   Copyright (C) 2011-2018 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.

# Check to see if the C and C++ compilers work
if { [which $CC] == 0 || [which $CXX] == 0 } {
    return
}

# These tests require plugin and LTO.
if { ![check_plugin_api_available]
     || ![check_lto_available] } {
    return
}

global INT128_CFLAGS

global CFLAGS
global CXXFLAGS
set saved_CFLAGS "$CFLAGS"
set saved_CXXFLAGS "$CXXFLAGS"
regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS "" CFLAGS
regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS "" CXXFLAGS

proc restore_notify { } {
  global saved_CFLAGS
  global saved_CXXFLAGS
  set CFLAGS "$saved_CFLAGS"
  set CXXFLAGS "$saved_CXXFLAGS"
}

set plugin_names {
    liblto_plugin.so
    liblto_plugin-0.dll
    cyglto_plugin-0.dll
}
set plug_opt ""
foreach plug $plugin_names {
    set plug_so [run_host_cmd $CC "--print-prog-name $plug"]
    if { $plug_so eq $plug } then {
	set plug_so [run_host_cmd $CC "--print-file-name $plug"]
    }
    if { $plug_so ne $plug } then {
	set plug_opt "--plugin $plug_so"
	break
    }
}
set lto_fat ""
set lto_no_fat ""
if { [check_lto_fat_available] } {
  set lto_fat "-ffat-lto-objects"
  set lto_no_fat "-fno-fat-lto-objects"
}

# Simple LTO tests and generate input files for complex LTO tests.
set lto_link_tests [list \
  [list "LTO 1" \
   "-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin" \
   {lto-1a.c lto-1b.c} {} "lto-1.exe"] \
  [list "Compile 2" \
   "" "-O2 -flto -fuse-linker-plugin" \
   {lto-2.c} {} ""] \
  [list "LTO 2" \
   "-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" "" \
   {dummy.c} {} "lto-2.exe"] \
  [list "Compile 3a" \
   "" "-flto" \
   {lto-3a.c} {} ""] \
  [list "Compile 3c" \
   "" "-O2" \
   {lto-3c.c} {} ""] \
  [list "Build liblto-3.a" \
   "" "-flto $lto_fat" \
   {lto-3b.c} {} "liblto-3.a"] \
  [list "Compile 5a" \
   "" "-flto $lto_fat" \
   {lto-5a.c} {} ""] \
  [list "Compile 5b" \
   "" "-flto $lto_fat" \
   {lto-5b.c} {} ""] \
  [list "LTO 6" \
   "-O2 -flto -fuse-linker-plugin" "" \
   {lto-6.c} {} "lto-6.exe" "c"] \
  [list "Compile PR ld/12365" \
   "" "-flto -O2 $lto_fat" \
   {pr12365a.c pr12365b.c pr12365c.c} {} ""] \
  [list "Compile 9" \
   "" "-O2 -finline -flto" \
   {lto-9.cc} {} "" "c++"] \
  [list "Compile 11a" \
   "" "-O -flto" \
   {lto-11a.c} {} ""] \
  [list "Compile 11b" \
   "" "-O -flto" \
   {lto-11b.c} {} ""] \
  [list "Compile 11c" \
   "" "-O" \
   {lto-11c.c} {} ""] \
  [list "Build liblto-12.a" \
   "$plug_opt" "-O2 -flto" \
   {lto-12c.c} {} "liblto-12.a"] \
  [list "Compile 12" \
   "" "-O2 -flto" \
   {lto-12a.c lto-12b.c} {} ""] \
  [list "Compile 13" \
   "" "-O2 -flto" \
   {lto-13a.c lto-13b.c} {} ""] \
  [list "Build liblto-13.a" \
   "" "-O2" \
   {lto-13c.c} {} "liblto-13.a"] \
  [list "Compile 14a" \
   "" "-flto" \
   {lto-14a.c lto-14b.c} {} ""] \
  [list "Build liblto-14.a" \
   "$plug_opt" "-flto" \
   {lto-14c.c} {} "liblto-14.a"] \
  [list "Compile 15a" \
   "" "-flto" \
   {lto-15a.c} {} ""] \
  [list "Build liblto-15.a" \
   "$plug_opt" "-flto" \
   {lto-15b.c} {} "liblto-15.a"] \
  [list "PR ld/12696" \
   "-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto" \
   {pr12696-1.cc} {} "pr12696-1r.o" "c++"] \
  [list "Compile PR ld/12758" \
   "" "" \
   {pr12758a.s} {} ""] \
  [list "Build libpr12758.a" \
   "" "-flto -O2 $lto_fat" \
   {pr12758b.c} {} "libpr12758.a"] \
  [list "PR ld/12758" \
   "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" "" \
   {dummy.c} {} "pr12758.exe"] \
  [list "Compile PR ld/12760" \
   "" "-g -O0" \
   {pr12760a.c} {} ""] \
  [list "Build libpr12760.a" \
   "" "-flto -O2 $lto_fat" \
   {pr12760b.c} {} "libpr12760.a"] \
  [list "PR ld/12760" \
   "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" "" \
   {dummy.c} {{warning "pr12760a.c:6: warning: Bad \\.?bar"}} \
   "pr12760.exe" "c"] \
  [list "Build libpr13183.a" \
   "-T" "-flto -O2 $lto_fat" \
   {pr13183a.c} {} "libpr13183.a"] \
  [list "Compile PR ld/13183" \
   "" "-flto -O2" \
   {pr13183b.c} {} ""] \
  [list "Compile PR ld/13201" \
   "" "-flto -O2" \
   {pr13201.c} {} ""] \
  [list "PR ld/13287" \
   "-flto -fuse-linker-plugin -Wl,--as-needed" "-flto" \
   {pr13287.cc} {} "pr13287.exe" "c++"] \
  [list "PR ld/15323 (1)" \
   "" "-O2" \
   {pr15323a.c} {} "" "c"] \
  [list "PR ld/15323 (2)" \
   "-O2 -flto -r -nostdlib" "-O2 -flto" \
   {pr15323a.c} {} "pr15323a-r.o" "c"] \
  [list "Compile(1) PR ld/pr16846" \
   "" "-flto" \
   {pr16846a.c pr16846b.c} {} ""] \
  [list "Compile(2) PR ld/pr16846" \
   "" "" \
   {pr16846c.c} {} ""] \
  [list "PR ld/pr16846(1)" \
   "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846b.o tmpdir/pr16846c.o" "" \
   {dummy.c} {} "pr16846a.exe"] \
  [list "PR ld/pr16846(2)" \
   "-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846c.o tmpdir/pr16846b.o" "" \
   {dummy.c} {} "pr16846b.exe"] \
  [list "PR ld/19317 (1)" \
   "$plug_opt" "-flto $lto_no_fat" \
   {pr19317.c} {} "libpr19317.a"] \
  [list "Build pr20276a.o" \
   "" "-fno-lto" \
   {pr20276a.c}] \
  [list "Build pr20276b.o" \
   "$plug_opt" "-flto $lto_no_fat" \
   {pr20276b.c}] \
  [list "Build pr20267a.o" \
   "" "" \
   {pr20267a.c}] \
  [list "Build libpr20267a.a" \
   "$plug_opt" "-flto $lto_fat" \
   {pr20267b.c} {} "libpr20267a.a"] \
  [list "Build libpr20267b.a" \
   "$plug_opt" "-flto $lto_no_fat" \
   {pr20267b.c} {} "libpr20267b.a"] \
  [list "Build pr20321" \
   "-flto -Wl,-plugin,$plug_so" "-flto" \
   {pr20321.c} {{warning ".*: duplicated plugin"}} \
   "pr20321" "c"] \
  [list "Build pr22502a.o" \
   "" "" \
   {pr22502a.c}] \
  [list "Build pr22502b.o" \
   "$plug_opt" "-flto $lto_no_fat" \
   {pr22502b.c}] \
  [list "Build pr22751.a" \
   "$plug_opt" "-flto $lto_no_fat $INT128_CFLAGS" \
   {pr22751.c} {} "pr22751.a"] \
  [list "Build libpr23818.so" \
   "-shared -flto -g -Wl,-version-script,pr23818.t" \
   "-g -flto $lto_fat" \
   {pr23818a.c pr23818b.c} \
   {{"readelf" {-s --wide} "pr23818.d"}} \
   "libpr23818.so"] \
]

if { [at_least_gcc_version 4 7] } {
    set lto_link_tests [concat $lto_link_tests [list \
      [list "Compile PR ld/12942 (1)" \
       "" "-flto -O2" \
       {pr12942a.cc pr12942c.cc} {} "" "c++"] \
      [list "Compile PR ld/12942 (2)" \
       "" "-O0" \
       {pr12942b.cc} {} "" "c++"] \
    ]]
}

set lto_compile_elf_tests [list \
  [list "Compile 7" \
   "" "-flto -O2" \
   {lto-7a.c lto-7b.c lto-7c.c} {} ""] \
  [list "Compile 8a" \
   "" "-O2" \
   {lto-8a.c} {} ""] \
  [list "Compile 8b" \
   "" "-flto -O2" \
   {lto-8b.c} {} ""] \
  [list "PR ld/23309" \
   "-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections -Wl,--gc-sections,-u,KeepMe" \
   "-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections" \
   {pr23309.c} {{"nm" {} "pr23309.d"}} "pr23309.exe" "c"] \
]

# Generate input files for complex LTO tests for ELF.
set lto_link_elf_tests [list \
  [list "Build liblto-7.so" \
   "-shared" "-O2 -fpic" \
   {lto-7d.c} {} "liblto-7.so" "c"] \
  [list "Build liblto-17a.so" \
   "-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto" \
   {lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"] \
  [list "Build liblto-17b.so 1" \
   "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
   {lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"] \
  [list "Build liblto-17b.so 2" \
   "-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
   {lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"] \
  [list "PR ld/12982" \
   "-O2 -flto -fuse-linker-plugin" "-O2 -flto" \
   {pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"] \
  [list "PR ld/12975" \
   "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto" \
   {pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"] \
  [list "PR ld/13229" \
   "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto" \
   {pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"] \
  [list "PR ld/13244" \
   "-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto" \
   {pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"] \
  [list "Build libpr15146a.a" \
   "$plug_opt" "-flto -O2" \
   {pr15146a.c} {} "lib15146a.a"] \
  [list "Build pr15146b.so" \
   "-shared" "-O2 -fpic" \
   {pr15146b.c} {} "pr15146b.so" "c"] \
  [list "Build pr15146c.so" \
   "-shared -Wl,--no-as-needed tmpdir/pr15146b.so" "-O2 -fpic" \
   {pr15146c.c} {} "pr15146c.so" "c"] \
  [list "PR ld/15146 (1)" \
   "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146a.o tmpdir/pr15146c.so" "" \
   {dummy.c} {{"readelf" {-d} "pr15146.d"}} "pr15146a.exe"] \
  [list "Build libpr15146d.a" \
   "$plug_opt" "-flto -O2" \
   {pr15146d.c} {} "lib15146d.a"] \
  [list "Build libpr16746a.a" \
   "" "" \
   {pr16746a.c pr16746b.c} {} "lib15146a.a"] \
  [list "Build libpr16746b.a" \
   "$plug_opt" "-O2 -flto" \
   {pr16746c.c pr16746d.c} {} "lib15146b.a"] \
  [list "PR ld/16746 (1)" \
   "-O2 -flto -fuse-linker-plugin tmpdir/pr16746a.o tmpdir/pr16746c.o" "-O2 -flto" \
   {dummy.c} {} "pr16746a.exe"] \
  [list "PR ld/16746 (2)" \
   "-O2 -flto -fuse-linker-plugin tmpdir/pr16746c.o tmpdir/pr16746a.o" "-O2 -flto" \
   {dummy.c} {} "pr16746b.exe"] \
  [list "Build pr21382a.o" \
   "" "-O2 -flto" \
   {pr21382a.c} {} "" "c"] \
  [list "Build pr21382.so" \
   "-shared" "-O2 -fpic" \
   {pr21382b.c} {} "pr21382.so" "c"] \
  [list {Build pr22220lib.so} \
   {-shared -Wl,--version-script=pr22220lib.ver} {-fPIC} \
   {pr22220lib.cc} {} {pr22220lib.so} {c++}] \
  [list {Build pr22220main.o} \
   {} {-flto} \
   {pr22220main.cc} {} {} {c++}] \
]

# PR 14918 checks that libgcc is not spuriously included in a shared link of
# an empty program.  The ARM crt1.o startup code however calls __libc_csu_init
# in /usr/lib/libc_nonshared.a(elf-init.oS).  This in turn needs
# __aeabi_unwind_cpp_pr0@@GCC_3.5 which is provided by libgcc_s.so.1, so the
# test fails.  Hence this code to skip the test.
if { ! [istarget "arm*-*-*"] } {
    set lto_link_elf_tests [concat $lto_link_elf_tests [list \
  [list "PR ld/14918" \
   "-flto" "-flto" \
   {pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"] \
  ]]
}

# Check final symbols in executables.
set lto_link_symbol_tests [list \
  [list "LTO 3 symbol" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
   {dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"] \
  [list "LTO 5 symbol" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
   {dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"] \
  [list "LTO 9 symbol" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" "" \
   {dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"] \
  [list "LTO 16a symbol" \
   "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" "-flto" \
   {lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"] \
  [list "LTO 16b symbol" \
   "-O2 -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" "-flto" \
   {lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"] \
  [list "PR ld/13183" \
   "-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" "" \
   {dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"] \
]

# LTO run-time tests.
set lto_run_tests [list \
  [list "LTO 3a" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
   {dummy.c} "lto-3b.exe" "lto-3.out" "" "c"] \
  [list "LTO 3b" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" "" \
   {dummy.c} "lto-3c.exe" "lto-3.out" "" "c"] \
  [list "LTO 3c" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o -Wl,--whole-archive tmpdir/liblto-3.a -Wl,--no-whole-archive tmpdir/liblto-3.a" "" \
   {dummy.c} "lto-3d.exe" "lto-3.out" "" "c"] \
  [list "LTO 5" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
   {dummy.c} "lto-5.exe" "lto-5.out" "" "c"] \
  [list "LTO 11" \
   "-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" "" \
   {dummy.c} "lto-11.exe" "lto-11.out" "" "c"] \
  [list "LTO 12a" \
   "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" "" \
   {dummy.c} "lto-12a.exe" "lto-12.out" "" "c"] \
  [list "LTO 12b" \
   "-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" "" \
   {dummy.c} "lto-12b.exe" "lto-12.out" "" "c"] \
  [list "LTO 13" \
   "-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" "" \
   {dummy.c} "lto-13.exe" "lto-13.out" "" "c"] \
  [list "LTO 14" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" "" \
   {dummy.c} "lto-14.exe" "lto-14.out" "" "c"] \
  [list "LTO 15" \
   "-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" "" \
   {dummy.c} "lto-15.exe" "lto-15.out" "" "c"] \
  [list "PR ld/13066" \
   "-O2 -flto -fuse-linker-plugin" "" \
   {pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"] \
  [list "PR ld/13201" \
   "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" "" \
   {dummy.c} "pr13201.exe" "pr13201.out" "" "c"] \
  [list "PR ld/15323 (3)" \
   "-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" "" \
   {pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"] \
  [list "PR ld/15323 (4)" \
   "-O2 -flto tmpdir/pr15323a-r.o" "" \
   {dummy.c} "pr15323a.exe" "pr15323.out" "-flto -O2" "c"] \
  [list "PR ld/19317 (3)" \
   "-O2 -flto tmpdir/pr19317-r.o" "" \
   {dummy.c} "pr19317.exe" "pr19317.out" "-flto -O2" "c"] \
  [list "Run pr20276" \
   "-O2 -flto tmpdir/pr20276a.o tmpdir/pr20276b.o" "" \
   {dummy.c} "pr20276" "pass.out" "-flto -O2" "c"] \
  [list "Run pr20267a" \
   "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267a.a" "" \
   {dummy.c} "pr20267a" "pass.out" "-flto -O2" "c"] \
  [list "Run pr20267b" \
   "-O2 -flto tmpdir/pr20267a.o tmpdir/libpr20267b.a" "" \
   {dummy.c} "pr20267b" "pass.out" "-flto -O2" "c"] \
  [list "Run pr22502" \
   "-O2 -flto tmpdir/pr22502a.o tmpdir/pr22502b.o" "" \
   {dummy.c} "pr20267" "pass.out" "-flto -O2" "c"] \
  [list "Run pr22751" \
   "-O2 -flto" "" \
   {dummy.c} "pr22751" "pass.out" "-flto -O2" "c" "" \
   "-Wl,--whole-archive tmpdir/pr22751.a -Wl,--no-whole-archive"] \
]

if { [at_least_gcc_version 4 7] } {
    set lto_run_tests [concat $lto_run_tests [list \
      [list "PR ld/12942 (1)" \
       "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" "" \
       {dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"] \
      [list "PR ld/12942 (2)" \
       "-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" "" \
       {dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"] \
    ]]
}

# LTO run-time tests for ELF which require shared library support.
set lto_run_elf_shared_tests [list \
  [list "LTO 7" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-7b.o tmpdir/lto-7c.o tmpdir/lto-7a.o -Wl,--no-as-needed tmpdir/liblto-7.so" "" \
   {dummy.c} "lto-7.exe" "lto-7.out" "" "c"] \
  [list "Run pr21382" \
   "-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr21382a.o tmpdir/pr21382.so" "" \
   {dummy.c} "pr21382.exe" "pass.out" "" "c"] \
  [list {pr22220a} \
   {-flto -fuse-linker-plugin tmpdir/pr22220main.o tmpdir/pr22220lib.so} {} \
   {dummy.c} {pr22220a.exe} {pass.out} {} {c++}] \
  [list {pr22220b} \
   {-flto -fuse-linker-plugin -Wl,--no-as-needed tmpdir/pr22220lib.so tmpdir/pr22220main.o} {} \
   {dummy.c} {pr22220b.exe} {pass.out} {} {c++}] \
]

# LTO run-time tests for ELF
set lto_run_elf_tests [list \
  [list "LTO 8" \
   "-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" "" \
   {dummy.c} "lto-8.exe" "lto-8.out" "" "c"] \
  [list "LTO TLS IE" \
   "-O2 -flto -fuse-linker-plugin" "" \
   {run-ie.c} "run-ie.exe" "run-ie.out" "" "c"] \
]

run_cc_link_tests $lto_link_tests

# These compilation tests generate intermediate object files which will be used
# by some elf tests besides shared libs tests.  So, always compile them.
run_cc_link_tests $lto_compile_elf_tests

# Restrict these to ELF targets that support shared libs and PIC.
if { [is_elf_format] && [check_lto_shared_available] } {
    run_cc_link_tests $lto_link_elf_tests
    set testname "PR ld/15146 (2)"
    set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146d.o tmpdir/pr15146c.so"]
    if { [ regexp "undefined reference to symbol '\\.?xxx'" $exec_output ] } {
	pass $testname
    } {
	fail $testname
    }
    set testname "PR ld/16746 (3)"
    set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746b.o tmpdir/pr16746d.o"]
    if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
	pass $testname
    } {
	fail $testname
    }
    set testname "PR ld/16746 (4)"
    set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746d.o tmpdir/pr16746b.o"]
    if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
	pass $testname
    } {
	fail $testname
    }
}

set testname "Build liblto-11.a"
remote_file host delete "tmpdir/liblto-11.a"
set catch_output [run_host_cmd "$ar" "rc $plug_opt tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
if {![string match "" $catch_output]} {
    unresolved $testname
    restore_notify
    return
}

if { [at_least_gcc_version 4 7] } {
    # Check expected LTO linker errors.
    # Since the asm symbol name hack in pr12365b.c doesn't work on all
    # targets, run PR ld/12365 tests only for known targets.
    if { ([istarget "i?86-*-elf*"]
	   || [istarget "i?86-*-linux*"]
	   || [istarget "i?86-*-gnu*"]
	   || [istarget "i?86-*-nacl*"]
	   || [istarget "x86_64-*-nacl*"]
	   || [istarget "x86_64-*-linux*"]
	   || [istarget "amd64-*-linux*"]) } {
	set testname "PR ld/12365"
	set exec_output [run_host_cmd "$CC" "-O2 -flto -flto-partition=none -fuse-linker-plugin -o tmpdir/pr12365 tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
	if { [ regexp "undefined reference to `my_bcopy'" $exec_output ] } {
	    # Linker should catch the reference to undefined `my_bcopy'
	    # error caused by a GCC bug.
	    pass $testname
	} elseif { [ string match "" $exec_output ] } {
	    global READELF
	    set exec_output [run_host_cmd "$READELF" "-s -W tmpdir/pr12365"]
	    if { [ regexp "my_bcopy" $exec_output ] } {
		# Verify that there is no `my_bcopy' symbol in executable.
		fail $testname
	    } {
		pass $testname
	    }
	} {
	    fail $testname
	}

	run_cc_link_tests [list \
	    [list \
		"Build pr22721a.so" \
		"-shared -nostdlib -nostartfiles -Wl,-version-script,pr22721.t" \
		"" \
		{pr22721a.s} \
		{} \
		"pr22721a.so" \
	    ] \
	    [list \
		"Build pr22721b.o" \
		"$plug_opt" \
		"-O2 -fPIC -flto $lto_no_fat" \
		{pr22721b.c} \
	    ] \
	    [list \
		"Build PR ld/pr22721" \
		"-O2 -flto -fuse-linker-plugin -nostdlib -nostartfiles \
		-Wl,-e,_start tmpdir/pr22721b.o tmpdir/pr22721a.so" \
		"" \
		{dummy.c} \
		{} \
		"pr22721.exe"
	    ] \
	]
    }
    set testname "PR ld/12942 (3)"
    set exec_output [run_host_cmd "$CXX" "-O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
    if { [ regexp "undefined reference to `\\.?link_error\\(\\)'" $exec_output ] } {
        pass $testname
    } {
        fail $testname
    }
}

# Run "ld -r" to generate inputs for complex LTO tests.
run_dump_test "lto-3r"
remote_exec host "mv" "tmpdir/dump tmpdir/lto-3.o"
run_dump_test "lto-5r"
remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"

run_cc_link_tests $lto_link_symbol_tests

run_ld_link_tests [list \
  [list "PR ld/19317 (2)" \
   "-r tmpdir/pr19317.o" "" "" \
   {dummy.s} {} "pr19317-r.o"] \
]

run_ld_link_exec_tests $lto_run_tests

if { [is_elf_format] } {
    run_ld_link_exec_tests $lto_run_elf_tests

    # Note - it is not guaranteed that the ordering of symbols in the dynamic
    # symbol table will match the ordering of the symbols specified by the
    # --dynamic-list command line option.
    #
    # For PR22983 we want to make sure that all four symbols specified in
    # pr222983.t are present in the output, but a simple sequences of regexps
    # will not work as we do not know the order of the symbols.  (Readelf
    # does not have a symbol sorting option and the run_cc_list_tests proc
    # does not allow for the output of the dump program to piped into `sort`).
    #
    # So instead we run readelf four times, each time checking for the
    # presence of a specific symbol from the pr22983.t file.
    run_cc_link_tests [list \
	[list \
	    "Build pr22983" \
	    "-Wl,--dynamic-list,pr22983.t" \
	    "-flto" \
	     {pr22983a.c pr22983b.c} \
	    {{readelf {--dyn-syms --wide} pr22983.1.d} \
	     {readelf {--dyn-syms --wide} pr22983.2.d} \
	     {readelf {--dyn-syms --wide} pr22983.3.d} \
	     {readelf {--dyn-syms --wide} pr22983.4.d}} \
	    "pr22983" \
	] \
    ]
}

if { [is_elf_format] && [check_lto_shared_available] } {
    run_ld_link_exec_tests $lto_run_elf_shared_tests
}

proc pr20103 {cflags libs} {
    global CC

    set testname "PR ld/20103 ($cflags $libs)"
    set exec_output [run_host_cmd "$CC" "$cflags $libs"]
    if { [ regexp "undefined reference to `\\.?dead'" $exec_output ] } {
        pass "$testname (1)"
    } {
        fail "$testname (1)"
    }
    if { [ regexp "plugin needed to handle lto object" $exec_output ] } {
        fail "$testname (2)"
    } {
        pass "$testname (2)"
    }
}

if { [check_lto_fat_available] } {
    run_cc_link_tests [list \
	[list \
	    "Build fatpr20103a.a" \
	    "$plug_opt" "-flto -ffat-lto-objects" \
	    {pr20103a.c} {} "fatpr20103a.a"
	] \
	[list \
	    "Build fatpr20103b.a" \
	    "$plug_opt" "-flto -ffat-lto-objects" \
	    {pr20103b.c} {} "fatpr20103b.a"
	] \
	[list \
	    "Build fatpr20103c.a" \
	    "$plug_opt" "-flto -ffat-lto-objects" \
	    {pr20103c.c} {} "fatpr20103c.a" \
	] \
	[list \
	    "Build thinpr20103a.a" \
	    "$plug_opt" "-flto -fno-fat-lto-objects" \
	    {pr20103a.c} {} "thinpr20103a.a"
	] \
	[list \
	    "Build thinpr20103b.a" \
	    "$plug_opt" "-flto -fno-fat-lto-objects" \
	    {pr20103b.c} {} "thinpr20103b.a"
	] \
	[list \
	    "Build thinpr20103c.a" \
	    "$plug_opt" "-flto -fno-fat-lto-objects" \
	    {pr20103c.c} {} "thinpr20103c.a" \
	] \
	[list \
	    "Build pr20103a" \
	    "-O2 -flto -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
	    "-O2 -flto" \
	    {dummy.c} {} "pr20103a" \
	] \
	[list \
	    "Build pr20103b" \
	    "-O2 -flto -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
	    "-O2 -flto" \
	    {dummy.c} {} "pr20103b" \
	] \
	[list \
	    "Build pr20103c" \
	    "-O2 -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
	    "-O2" \
	    {dummy.c} {} "pr20103c" \
	] \
    ]
    pr20103 "-O2 -flto" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
    pr20103 "-O2 -flto" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
    pr20103 "-O2" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"

    if { [at_least_gcc_version 4 9] } {
	run_cc_link_tests [list \
	    [list \
		"Build pr20103d" \
		"-O2 -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
		"-O2" \
		{dummy.c} {} "pr20103d" \
	    ] \
	]
	pr20103 "-O2" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
    }
}

restore_notify