summary refs log tree commit diff
path: root/gnu/packages/llvm.scm
blob: 9e10da1a77cacded2e3adb244b5c711bfd506fdc (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
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
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2016, 2018 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2015, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016 Dennis Mungai <dmngaie@gmail.com>
;;; Copyright © 2016, 2018, 2019, 2020, 2021 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2017 Roel Janssen <roel@gnu.org>
;;; Copyright © 2018, 2019, 2020 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2018, 2021 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2018 Tim Gesthuizen <tim.gesthuizen@yahoo.de>
;;; Copyright © 2018 Pierre Neidhardt <mail@ambrevar.xyz>
;;; Copyright © 2019 Rutger Helling <rhelling@mykolab.com>
;;; Copyright © 2019 Arm Ltd <David.Truby@arm.com>
;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Brett Gilio <brettg@gnu.org>
;;; Copyright © 2020 Giacomo Leidi <goodoldpaul@autistici.org>
;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
;;; Copyright © 2020, 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2021 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2021 Lars-Dominik Braun <lars@6xq.net>
;;; Copyright © 2021 Guillaume Le Vaillant <glv@posteo.net>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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.
;;;
;;; GNU Guix 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 GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages llvm)
  #:use-module (guix packages)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix download)
  #:use-module (guix gexp)
  #:use-module (guix git-download)
  #:use-module (guix memoization)
  #:use-module (guix utils)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system emacs)
  #:use-module (guix build-system python)
  #:use-module (guix build-system trivial)
  #:use-module (gnu packages)
  #:use-module (gnu packages base)
  #:use-module (gnu packages gcc)
  #:use-module (gnu packages bootstrap)           ;glibc-dynamic-linker
  #:use-module (gnu packages compression)
  #:use-module (gnu packages julia)               ;julia-patch
  #:use-module (gnu packages libedit)
  #:use-module (gnu packages libffi)
  #:use-module (gnu packages lua)
  #:use-module (gnu packages mpi)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages ocaml)
  #:use-module (gnu packages onc-rpc)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages python)
  #:use-module (gnu packages swig)
  #:use-module (gnu packages xml)
  #:use-module (ice-9 match)
  #:export (make-lld-wrapper
            system->llvm-target))

(define* (system->llvm-target #:optional
                              (system (or (and=> (%current-target-system)
                                                 gnu-triplet->nix-system)
                                          (%current-system))))
  "Return the LLVM target name that corresponds to SYSTEM, a system type such
as \"x86_64-linux\"."
  ;; See the 'lib/Target' directory of LLVM for a list of supported targets.
  (letrec-syntax ((matches (syntax-rules (=>)
                             ((_ (system-prefix => target) rest ...)
                              (if (string-prefix? system-prefix system)
                                  target
                                  (matches rest ...)))
                             ((_)
                              (error "LLVM target for system is unknown" system)))))
    (matches ("aarch64"     => "AArch64")
             ("armhf"       => "ARM")
             ("mips64el"    => "Mips")
             ("powerpc"     => "PowerPC")
             ("riscv"       => "RISCV")
             ("x86_64"      => "X86")
             ("i686"        => "X86")
             ("i586"        => "X86"))))

(define (llvm-uri component version)
  (string-append "https://github.com/llvm/llvm-project/releases/download"
                 "/llvmorg-" version "/" component "-" version ".src.tar.xz"))

(define* (clang-runtime-from-llvm llvm hash
                                  #:optional (patches '()))
  (package
    (name "clang-runtime")
    (version (package-version llvm))
    (source
     (origin
       (method url-fetch)
       (uri (llvm-uri "compiler-rt" version))
       (sha256 (base32 hash))
       (patches (map search-patch patches))))
    (build-system cmake-build-system)
    (native-inputs (package-native-inputs llvm))
    (inputs
     `(("llvm" ,llvm)))
    (arguments
     `(;; Don't use '-g' during the build to save space.
       #:build-type "Release"
       #:tests? #f                      ; Tests require gtest
       #:modules ((srfi srfi-1)
                  (ice-9 match)
                  ,@%cmake-build-system-modules)
       #:phases (modify-phases (@ (guix build cmake-build-system) %standard-phases)
                  (add-after 'set-paths 'hide-glibc
                    ;; Work around https://issues.guix.info/issue/36882.  We need to
                    ;; remove glibc from CPLUS_INCLUDE_PATH so that the one hardcoded
                    ;; in GCC, at the bottom of GCC include search-path is used.
                    (lambda* (#:key inputs #:allow-other-keys)
                      (let* ((filters '("libc"))
                             (input-directories
                              (filter-map (lambda (input)
                                            (match input
                                              ((name . dir)
                                               (and (not (member name filters))
                                                    dir))))
                                          inputs)))
                        (set-path-environment-variable "CPLUS_INCLUDE_PATH"
                                                       '("include")
                                                       input-directories)
                        #t))))))
    (home-page "https://compiler-rt.llvm.org")
    (synopsis "Runtime library for Clang/LLVM")
    (description
     "The \"clang-runtime\" library provides the implementations of run-time
functions for C and C++ programs.  It also provides header files that allow C
and C++ source code to interface with the \"sanitization\" passes of the clang
compiler.  In LLVM this library is called \"compiler-rt\".")
    (license (package-license llvm))

    ;; <https://compiler-rt.llvm.org/> doesn't list MIPS as supported.
    (supported-systems (delete "mips64el-linux" %supported-systems))))

(define* (clang-from-llvm llvm clang-runtime hash
                          #:key (patches '()) tools-extra)
  "Produce Clang with dependencies on LLVM and CLANG-RUNTIME, and applying the
given PATCHES.  When TOOLS-EXTRA is given, it must point to the
'clang-tools-extra' tarball, which contains code for 'clang-tidy', 'pp-trace',
'modularize', and other tools."
  (package
    (name "clang")
    (version (package-version llvm))
    (source
     (origin
       (method url-fetch)
       (uri (llvm-uri (if (version>=? version "9.0.1")
                                   "clang"
                                   "cfe")
                               version))
       (sha256 (base32 hash))
       (patches (map search-patch patches))))
    ;; Using cmake allows us to treat llvm as an external library.  There
    ;; doesn't seem to be any way to do this with clang's autotools-based
    ;; build system.
    (build-system cmake-build-system)
    (outputs (if tools-extra '("out" "extra") '("out")))
    (native-inputs (package-native-inputs llvm))
    (inputs
     `(("libxml2" ,libxml2)
       ("gcc-lib" ,gcc "lib")
       ,@(package-inputs llvm)
       ,@(if tools-extra
             `(("clang-tools-extra" ,tools-extra))
             '())))
    (propagated-inputs
     `(("llvm" ,llvm)
       ("clang-runtime" ,clang-runtime)))
    (arguments
     `(#:configure-flags
       (list "-DCLANG_INCLUDE_TESTS=True"

             ;; Find libgcc_s, crtbegin.o, and crtend.o.
             (string-append "-DGCC_INSTALL_PREFIX="
                            (assoc-ref %build-inputs "gcc-lib"))

             ;; Use a sane default include directory.
             (string-append "-DC_INCLUDE_DIRS="
                            (assoc-ref %build-inputs "libc")
                            "/include"))

       ;; Don't use '-g' during the build to save space.
       #:build-type "Release"

       #:phases (modify-phases %standard-phases
                  ,@(if tools-extra
                        `((add-after 'unpack 'add-tools-extra
                            (lambda* (#:key inputs #:allow-other-keys)
                              ;; Unpack the 'clang-tools-extra' tarball under
                              ;; tools/.
                              (let ((extra (assoc-ref inputs
                                                      "clang-tools-extra")))
                                (invoke "tar" "xf" extra)
                                (rename-file ,(string-append
                                               "clang-tools-extra-"
                                               (package-version llvm)
                                               ".src")
                                             "tools/extra")
                                #t)))
                          (add-after 'install 'move-extra-tools
                            (lambda* (#:key outputs #:allow-other-keys)
                              ;; Move the extra tools to the "extra" output.
                              ;; These programs alone weigh in at 296 MiB,
                              ;; because they statically-link a whole bunch of
                              ;; Clang libraries.
                              (let* ((out   (assoc-ref outputs "out"))
                                     (extra (assoc-ref outputs "extra"))
                                     (bin   (string-append out "/bin"))
                                     (bin*  (string-append extra "/bin"))
                                     (lib   (string-append out "/lib")))
                                (define (move program)
                                  (rename-file (string-append bin "/" program)
                                               (string-append bin* "/"
                                                              program)))

                                (mkdir-p bin*)
                                (for-each move
                                          '("clang-apply-replacements"
                                            "clang-change-namespace"
                                            "clangd"
                                            "clang-doc"
                                            "clang-include-fixer"
                                            "clang-move"
                                            "clang-query"
                                            "clang-reorder-fields"
                                            "clang-tidy"
                                            "find-all-symbols"
                                            "modularize"
                                            "pp-trace"))

                                ;; Remove MiBs of .a files coming from
                                ;; 'clang-tools-extra'.
                                (for-each (lambda (component)
                                            (delete-file
                                             (string-append lib "/libclang"
                                                            component ".a")))
                                          '("ApplyReplacements"
                                            "ChangeNamespace"
                                            "Daemon"
                                            "DaemonTweaks"
                                            "Doc"
                                            "IncludeFixer"
                                            "IncludeFixerPlugin"
                                            "Move"))
                                (for-each delete-file
                                          (find-files
                                           lib
                                           "^(libfindAllSymbols|libclangTidy)"))
                                #t))))
                        '())
                  (add-after 'unpack 'add-missing-triplets
                    (lambda _
                      ;; Clang iterates through known triplets to search for
                      ;; GCC's headers, but does not recognize some of the
                      ;; triplets that are used in Guix.
                      (substitute* ,@(if (version>=? version "6.0")
                                         '("lib/Driver/ToolChains/Gnu.cpp")
                                         '("lib/Driver/ToolChains.cpp"))
                        (("\"aarch64-linux-gnu\"," all)
                         (string-append "\"aarch64-unknown-linux-gnu\", "
                                        all))
                        (("\"arm-linux-gnueabihf\"," all)
                         (string-append all
                                        " \"arm-unknown-linux-gnueabihf\","))
                        (("\"i686-pc-linux-gnu\"," all)
                         (string-append "\"i686-unknown-linux-gnu\", "
                                        all)))
                      #t))
                  (add-after 'unpack 'set-glibc-file-names
                    (lambda* (#:key inputs #:allow-other-keys)
                      (let ((libc (assoc-ref inputs "libc"))
                            (compiler-rt (assoc-ref inputs "clang-runtime"))
                            (gcc (assoc-ref inputs "gcc")))
                        ,@(cond
                           ((version>=? version "6.0")
                            `(;; Link to libclang_rt files from clang-runtime.
                              (substitute* "lib/Driver/ToolChain.cpp"
                                (("getDriver\\(\\)\\.ResourceDir")
                                 (string-append "\"" compiler-rt "\"")))

                              ;; Make "LibDir" refer to <glibc>/lib so that it
                              ;; uses the right dynamic linker file name.
                              (substitute* "lib/Driver/ToolChains/Linux.cpp"
                                (("(^[[:blank:]]+LibDir = ).*" _ declaration)
                                 (string-append declaration "\"" libc "/lib\";\n"))

                                ;; Make clang look for libstdc++ in the right
                                ;; location.
                                (("LibStdCXXIncludePathCandidates\\[\\] = \\{")
                                 (string-append
                                  "LibStdCXXIncludePathCandidates[] = { \"" gcc
                                  "/include/c++\","))

                                ;; Make sure libc's libdir is on the search path, to
                                ;; allow crt1.o & co. to be found.
                                (("@GLIBC_LIBDIR@")
                                 (string-append libc "/lib")))))
                           (else
                            `((substitute* "lib/Driver/Tools.cpp"
                                ;; Patch the 'getLinuxDynamicLinker' function so that
                                ;; it uses the right dynamic linker file name.
                                (("/lib64/ld-linux-x86-64.so.2")
                                 (string-append libc
                                                ,(glibc-dynamic-linker))))

                              ;; Link to libclang_rt files from clang-runtime.
                              ;; This substitution needed slight adjustment in 3.8.
                              ,@(if (version>=? version "3.8")
                                    '((substitute* "lib/Driver/Tools.cpp"
                                        (("TC\\.getDriver\\(\\)\\.ResourceDir")
                                         (string-append "\"" compiler-rt "\""))))
                                    '((substitute* "lib/Driver/ToolChain.cpp"
                                        (("getDriver\\(\\)\\.ResourceDir")
                                         (string-append "\"" compiler-rt "\"")))))

                              ;; Make sure libc's libdir is on the search path, to
                              ;; allow crt1.o & co. to be found.
                              (substitute* "lib/Driver/ToolChains.cpp"
                                (("@GLIBC_LIBDIR@")
                                 (string-append libc "/lib"))))))
                        #t)))
                  ,@(if (version>=? version "10")
                        `((add-after 'install 'adjust-cmake-file
                            (lambda* (#:key outputs #:allow-other-keys)
                              (let ((out (assoc-ref outputs "out")))
                                ;; Clang generates a CMake file with "targets"
                                ;; for each installed library file.  Downstream
                                ;; consumers of the CMake interface can use this
                                ;; to get absolute library locations.  Including
                                ;; this file will needlessly assert that _all_
                                ;; libraries are available, which causes problems
                                ;; in Guix because some are removed (see the
                                ;; move-extra-tools phase).  Thus, remove the
                                ;; asserts so that the main functionality works.
                                (substitute*
                                    (string-append
                                     out
                                     "/lib/cmake/clang/ClangTargets-release.cmake")
                                  (("list\\(APPEND _IMPORT_CHECK_TARGETS.*" all)
                                   (string-append "# Disabled by Guix.\n#" all)))
                                #t))))
                        '())
                  ,@(if (version>? version "3.8")
                        `((add-after 'install 'symlink-cfi_blacklist
                            (lambda* (#:key inputs outputs #:allow-other-keys)
                              (let* ((out (assoc-ref outputs "out"))
                                     (lib-share (string-append out "/lib/clang/"
                                                               ,version "/share"))
                                     (compiler-rt (assoc-ref inputs "clang-runtime"))
                                     ;; The location varies between Clang versions.
                                     (cfi-blacklist
                                      (cond
                                       ((file-exists?
                                         (string-append compiler-rt "/cfi_blacklist.txt"))
                                        (string-append compiler-rt "/cfi_blacklist.txt"))
                                       (else (string-append compiler-rt
                                                            "/share/cfi_blacklist.txt")))))
                                (mkdir-p lib-share)
                                ;; Symlink cfi_blacklist.txt to where Clang expects
                                ;; to find it.
                                (symlink cfi-blacklist
                                         (string-append lib-share "/cfi_blacklist.txt"))
                                #t))))
                        '())
                  (add-after 'install 'install-clean-up-/share/clang
                    (lambda* (#:key outputs #:allow-other-keys)
                      (let* ((out (assoc-ref outputs "out"))
                             (compl-dir (string-append
                                         out "/etc/bash_completion.d")))
                        (with-directory-excursion (string-append out
                                                                 "/share/clang")
                          (for-each
                            (lambda (file)
                              (when (file-exists? file)
                                (delete-file file)))
                            ;; Delete extensions for proprietary text editors.
                            '("clang-format-bbedit.applescript"
                              "clang-format-sublime.py"
                              ;; Delete Emacs extensions: see their respective Emacs
                              ;; Guix package instead.
                              "clang-rename.el" "clang-format.el"))
                          ;; Install bash completion.
                          (when (file-exists?  "bash-autocomplete.sh")
                            (mkdir-p compl-dir)
                            (rename-file "bash-autocomplete.sh"
                                         (string-append compl-dir "/clang")))))
                      #t)))))

    ;; Clang supports the same environment variables as GCC.
    (native-search-paths
     (list (search-path-specification
            (variable "C_INCLUDE_PATH")
            (files '("include")))
           (search-path-specification
            (variable "CPLUS_INCLUDE_PATH")
            (files '("include/c++" "include")))
           (search-path-specification
            (variable "LIBRARY_PATH")
            (files '("lib" "lib64")))))

    (home-page "https://clang.llvm.org")
    (synopsis "C language family frontend for LLVM")
    (description
     "Clang is a compiler front end for the C, C++, Objective-C and
Objective-C++ programming languages.  It uses LLVM as its back end.  The Clang
project includes the Clang front end, the Clang static analyzer, and several
code analysis tools.")
    (license (if (version>=? version "9.0")
                 license:asl2.0         ;with LLVM exceptions
                 license:ncsa))))

(define (make-clang-toolchain clang)
  (package
    (name (string-append (package-name clang) "-toolchain"))
    (version (package-version clang))
    (source #f)
    (build-system trivial-build-system)
    (arguments
     '(#:modules ((guix build union))
       #:builder (begin
                   (use-modules (ice-9 match)
                                (srfi srfi-26)
                                (guix build union))

                   (let ((out (assoc-ref %outputs "out")))

                     (match %build-inputs
                       (((names . directories) ...)
                        (union-build out directories)))

                     ;; Create 'cc' and 'c++' so that one can use it as a
                     ;; drop-in replacement for the default tool chain and
                     ;; have configure scripts find the compiler.
                     (symlink "clang" (string-append out "/bin/cc"))
                     (symlink "clang++" (string-append out "/bin/c++"))

                     (union-build (assoc-ref %outputs "debug")
                                  (list (assoc-ref %build-inputs
                                                   "libc-debug")))
                     (union-build (assoc-ref %outputs "static")
                                  (list (assoc-ref %build-inputs
                                                   "libc-static")))
                     #t))))

    (native-search-paths
     (append (package-native-search-paths clang)
             (list (search-path-specification     ;copied from glibc
                    (variable "GUIX_LOCPATH")
                    (files '("lib/locale"))))))
    (search-paths (package-search-paths clang))

    (license (package-license clang))
    (home-page "https://clang.llvm.org")
    (synopsis "Complete Clang toolchain for C/C++ development")
    (description "This package provides a complete Clang toolchain for C/C++
development to be installed in user profiles.  This includes Clang, as well as
libc (headers and binaries, plus debugging symbols in the @code{debug}
output), and Binutils.")
    (outputs '("out" "debug" "static"))
    (inputs `(("clang" ,clang)
              ("ld-wrapper" ,(car (assoc-ref (%final-inputs) "ld-wrapper")))
              ("binutils" ,binutils)
              ("libomp" ,libomp)            ;used when linking with '-fopenmp'
              ("libc" ,glibc)
              ("libc-debug" ,glibc "debug")
              ("libc-static" ,glibc "static")))))

(define-public llvm-12
  (package
    (name "llvm")
    (version "12.0.1")
    (source
     (origin
      (method url-fetch)
      (uri (llvm-uri "llvm" version))
      (sha256
       (base32
        "1pzx9zrmd7r3481sbhwvkms68fwhffpp4mmz45dgrkjpyl2q96kx"))))
    (build-system cmake-build-system)
    (outputs '("out" "opt-viewer"))
    (native-inputs
     `(("python" ,python-wrapper)
       ("perl"   ,perl)))
    (inputs
     `(("libffi" ,libffi)))
    (propagated-inputs
     `(("zlib" ,zlib)))                 ;to use output from llvm-config
    (arguments
     ;; TODO(core-updates): Unconditionally use quasiquote
     `(#:configure-flags
       ,#~(#$(if (%current-target-system)
                 #~quasiquote
                 #~quote)
           ;; These options are required for cross-compiling LLVM according to
           ;; https://llvm.org/docs/HowToCrossCompileLLVM.html.
           (#$@(if (%current-target-system)
                   #~(,(string-append "-DLLVM_TABLEGEN="
                                      #+(file-append this-package
                                                     "/bin/llvm-tblgen"))
                      #$(string-append "-DLLVM_DEFAULT_TARGET_TRIPLE="
                                       (%current-target-system))
                      #$(string-append "-DLLVM_TARGET_ARCH="
                                       (system->llvm-target))
                      #$(string-append "-DLLVM_TARGETS_TO_BUILD="
                                       (system->llvm-target)))
                   #~())
            "-DCMAKE_SKIP_BUILD_RPATH=FALSE"
            "-DCMAKE_BUILD_WITH_INSTALL_RPATH=FALSE"
            "-DBUILD_SHARED_LIBS:BOOL=TRUE"
            "-DLLVM_ENABLE_FFI:BOOL=TRUE"
            "-DLLVM_REQUIRES_RTTI=1" ; For some third-party utilities
            "-DLLVM_INSTALL_UTILS=ON")) ; Needed for rustc.
       ;; Don't use '-g' during the build, to save space.
       #:build-type "Release"
       #:phases
       (modify-phases %standard-phases
         (add-before 'build 'shared-lib-workaround
           ;; Even with CMAKE_SKIP_BUILD_RPATH=FALSE, llvm-tblgen
           ;; doesn't seem to get the correct rpath to be able to run
           ;; from the build directory.  Set LD_LIBRARY_PATH as a
           ;; workaround.
           (lambda _
             (setenv "LD_LIBRARY_PATH"
                     (string-append (getcwd) "/lib"))
             #t))
         (add-after 'install 'install-opt-viewer
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (opt-viewer-out (assoc-ref outputs "opt-viewer"))
                    (opt-viewer-share-dir (string-append opt-viewer-out "/share"))
                    (opt-viewer-dir (string-append opt-viewer-share-dir "/opt-viewer")))
               (mkdir-p opt-viewer-share-dir)
               (rename-file (string-append out "/share/opt-viewer")
                            opt-viewer-dir))
             #t)))))
    (home-page "https://www.llvm.org")
    (synopsis "Optimizing compiler infrastructure")
    (description
     "LLVM is a compiler infrastructure designed for compile-time, link-time,
runtime, and idle-time optimization of programs from arbitrary programming
languages.  It currently supports compilation of C and C++ programs, using
front-ends derived from GCC 4.0.1.  A new front-end for the C family of
languages is in development.  The compiler infrastructure includes mirror sets
of programming tools as well as libraries with equivalent functionality.")
    (license license:asl2.0)))  ;with LLVM exceptions, see LICENSE.txt

(define-public clang-runtime-12
  (clang-runtime-from-llvm
   llvm-12
   "1950rg294izdwkaasi7yjrmadc9mzdd5paf0q63jjcq2m3rdbj5l"))

(define-public clang-12
  (clang-from-llvm llvm-12 clang-runtime-12
                   "0px4gl27az6cdz6adds89qzdwb1cqpjsfvrldbz9qvpmphrj34bf"
                   #:patches '("clang-12.0-libc-search-path.patch")
                   #:tools-extra
                   (origin
                     (method url-fetch)
                     (uri (llvm-uri "clang-tools-extra"
                                    (package-version llvm-12)))
                     (sha256
                      (base32
                       "1r9a4fdz9ci58b5z2inwvm4z4cdp6scrivnaw05dggkxz7yrwrb5")))))

(define-public clang-toolchain-12
  (make-clang-toolchain clang-12))

(define-public llvm-11
  (package
    (inherit llvm-12)
    (version "11.0.0")
    (source
     (origin
      (method url-fetch)
      (uri (llvm-uri "llvm" version))
      (sha256
       (base32
        "0s94lwil98w7zb7cjrbnxli0z7gklb312pkw74xs1d6zk346hgwi"))))))

(define-public clang-runtime-11
  (clang-runtime-from-llvm
   llvm-11
   "0d5j5l8phwqjjscmk8rmqn0i2i0abl537gdbkagl8fjpzy1gyjip"))

(define-public clang-11
  (clang-from-llvm llvm-11 clang-runtime-11
                   "02ajkij85966vd150iy246mv16dsaph1kfi0y8wnncp8w6nar5hg"
                   #:patches '("clang-11.0-libc-search-path.patch")
                   #:tools-extra
                   (origin
                     (method url-fetch)
                     (uri (llvm-uri "clang-tools-extra"
                                    (package-version llvm-11)))
                     (sha256
                      (base32
                       "02bcwwn54661madhq4nxc069s7p7pj5gpqi8ww50w3anbpviilzy")))))

(define-public clang-toolchain-11
  (make-clang-toolchain clang-11))

(define-public llvm-10
  (package
    (inherit llvm-11)
    (version "10.0.1")
    (source
     (origin
      (method url-fetch)
      (uri (llvm-uri "llvm" version))
      (sha256
       (base32
        "1wydhbp9kyjp5y0rc627imxgkgqiv3dfirbqil9dgpnbaw5y7n65"))))))

(define-public clang-runtime-10
  (clang-runtime-from-llvm
   llvm-10
   "1yjqjri753w0fzmxcyz687nvd97sbc9rsqrxzpq720na47hwh3fr"))

(define-public clang-10
  (clang-from-llvm llvm-10 clang-runtime-10
                   "091bvcny2lh32zy8f3m9viayyhb2zannrndni7325rl85cwgr6pr"
                   #:patches '("clang-10.0-libc-search-path.patch")
                   #:tools-extra
                   (origin
                     (method url-fetch)
                     (uri (llvm-uri "clang-tools-extra"
                                             (package-version llvm-10)))
                     (sha256
                      (base32
                       "06n1yp638rh24xdxv9v2df0qajxbjz4w59b7dd4ky36drwmpi4yh")))))

(define-public clang-toolchain-10
  (make-clang-toolchain clang-10))

(define-public llvm-9
  (package
    (inherit llvm-10)
    (version "9.0.1")
    (source
     (origin
       (method url-fetch)
       (uri (llvm-uri "llvm" version))
       (sha256
        (base32
         "16hwp3qa54c3a3v7h8nlw0fh5criqh0hlr1skybyk0cz70gyx880"))
       (patches (search-patches
                 "llvm-9-fix-bitcast-miscompilation.patch"
                 "llvm-9-fix-scev-miscompilation.patch"
                 "llvm-9-fix-lpad-miscompilation.patch"))))))

(define-public clang-runtime-9
  (clang-runtime-from-llvm
   llvm-9
   "0xwh79g3zggdabxgnd0bphry75asm1qz7mv3hcqihqwqr6aspgy2"
   '("clang-runtime-9-libsanitizer-mode-field.patch")))

(define-public clang-9
  (clang-from-llvm llvm-9 clang-runtime-9
                   "0ls2h3iv4finqyflyhry21qhc9cm9ga7g1zq21020p065qmm2y2p"
                   #:patches '("clang-9.0-libc-search-path.patch")))

(define-public clang-toolchain-9
  (make-clang-toolchain clang-9))

(define-public llvm-8
  (package
    (inherit llvm-9)
    (version "8.0.0")
    (source (origin
              (method url-fetch)
              (uri (llvm-uri "llvm" version))
              (sha256
               (base32
                "0k124sxkfhfi1rca6kzkdraf4axhx99x3cw2rk55056628dvwwl8"))))
    (license license:ncsa)))

(define-public clang-runtime-8
  (clang-runtime-from-llvm
   llvm-8
   "1c919wsm17xnv7lr8bhpq2wkq8113lzlw6hzhfr737j59x3wfddl"
   '("clang-runtime-9-libsanitizer-mode-field.patch")))

(define-public clang-8
  (clang-from-llvm llvm-8 clang-runtime-8
                   "0svk1f70hvpwrjp6x5i9kqwrqwxnmcrw5s7f4cxyd100mdd12k08"
                   #:patches '("clang-8.0-libc-search-path.patch")))

(define-public clang-toolchain-8
  (make-clang-toolchain clang-8))

(define-public llvm-7
  (package
    (inherit llvm-8)
    (version "7.1.0")
    (source (origin
              (method url-fetch)
              (uri (llvm-uri "llvm" version))
              (sha256
               (base32
                "0r1p5didv4rkgxyvbkyz671xddg6i3dxvbpsi1xxipkla0l9pk0v"))))))

(define-public clang-runtime-7
  (clang-runtime-from-llvm
   llvm-7
   "1n48p8gjarihkws0i2bay5w9bdwyxyxxbpwyng7ba58jb30dlyq5"
   '("clang-runtime-9-libsanitizer-mode-field.patch")))

(define-public clang-7
  (clang-from-llvm llvm-7 clang-runtime-7
                   "0vc4i87qwxnw9lci4ayws9spakg0z6w5w670snj9f8g5m9rc8zg9"
                   #:patches '("clang-7.0-libc-search-path.patch")))

(define-public clang-toolchain-7
  (make-clang-toolchain clang-7))

(define-public llvm-6
  (package
    (inherit llvm-7)
    (version "6.0.1")
    (source (origin
              (method url-fetch)
              (uri (llvm-uri "llvm" version))
              (sha256
               (base32
                "1qpls3vk85lydi5b4axl0809fv932qgsqgdgrk098567z4jc7mmn"))))))

(define-public clang-runtime-6
  (clang-runtime-from-llvm
   llvm-6
   "1fcr3jn24yr8lh36nc0c4ikli4744i2q9m1ik67p1jymwwaixkgl"
   '("clang-runtime-9-libsanitizer-mode-field.patch")))

(define-public clang-6
  (clang-from-llvm llvm-6 clang-runtime-6
                   "0rxn4rh7rrnsqbdgp4gzc8ishbkryhpl1kd3mpnxzpxxhla3y93w"
                   #:patches '("clang-6.0-libc-search-path.patch")))

(define-public clang-toolchain-6
  (make-clang-toolchain clang-6))

(define-public llvm-3.9.1
  (package (inherit llvm-6)
    (name "llvm")
    (version "3.9.1")
    (source
     (origin
      (method url-fetch)
      (uri (llvm-uri "llvm" version))
      (sha256
       (base32
        "1vi9sf7rx1q04wj479rsvxayb6z740iaz3qniwp266fgp5a07n8z"))))
    (outputs '("out"))
    (arguments
     (substitute-keyword-arguments (package-arguments llvm)
       ((#:phases phases)
        `(modify-phases ,phases
           (delete 'install-opt-viewer)))))))

(define-public clang-runtime-3.9.1
  (clang-runtime-from-llvm
   llvm-3.9.1
   "16gc2gdmp5c800qvydrdhsp0bzb97s8wrakl6i8a4lgslnqnf2fk"
   '("clang-runtime-3.9-libsanitizer-mode-field.patch"
     "clang-runtime-asan-build-fixes.patch"
     "clang-runtime-esan-build-fixes.patch"
     "clang-3.5-libsanitizer-ustat-fix.patch")))

(define-public clang-3.9.1
  (clang-from-llvm llvm-3.9.1 clang-runtime-3.9.1
                   "0qsyyb40iwifhhlx9a3drf8z6ni6zwyk3bvh0kx2gs6yjsxwxi76"
                   #:patches '("clang-3.8-libc-search-path.patch")))

(define-public llvm-3.8
  (package (inherit llvm-3.9.1)
    (name "llvm")
    (version "3.8.1")
    (source
     (origin
      (method url-fetch)
      (uri (llvm-uri "llvm" version))
      (sha256
       (base32
        "1ybmnid4pw2hxn12ax5qa5kl1ldfns0njg8533y3mzslvd5cx0kf"))))))

(define-public clang-runtime-3.8
  (clang-runtime-from-llvm
   llvm-3.8
   "0p0y85c7izndbpg2l816z7z7558axq11d5pwkm4h11sdw7d13w0d"
   '("clang-runtime-asan-build-fixes.patch"
     "clang-runtime-3.8-libsanitizer-mode-field.patch"
     "clang-3.5-libsanitizer-ustat-fix.patch")))

(define-public clang-3.8
  (clang-from-llvm llvm-3.8 clang-runtime-3.8
                   "1prc72xmkgx8wrzmrr337776676nhsp1qd3mw2bvb22bzdnq7lsc"
                   #:patches '("clang-3.8-libc-search-path.patch")))

(define-public llvm-3.7
  (package (inherit llvm-3.8)
    (version "3.7.1")
    (source
     (origin
       (method url-fetch)
       (uri (llvm-uri "llvm" version))
       (sha256
        (base32
         "1masakdp9g2dan1yrazg7md5am2vacbkb3nahb3dchpc1knr8xxy"))))))

(define-public clang-runtime-3.7
  (clang-runtime-from-llvm
   llvm-3.7
   "10c1mz2q4bdq9bqfgr3dirc6hz1h3sq8573srd5q5lr7m7j6jiwx"
   '("clang-runtime-asan-build-fixes.patch"
     "clang-runtime-3.8-libsanitizer-mode-field.patch"
     "clang-3.5-libsanitizer-ustat-fix.patch")))

(define-public clang-3.7
  (clang-from-llvm llvm-3.7 clang-runtime-3.7
                   "0x065d0w9b51xvdjxwfzjxng0gzpbx45fgiaxpap45ragi61dqjn"
                   #:patches '("clang-3.5-libc-search-path.patch")))

(define-public llvm-3.6
  (package (inherit llvm-3.7)
    (version "3.6.2")
    (source
     (origin
       (method url-fetch)
       (uri (llvm-uri "llvm" version))
       (patches
        (search-patches "llvm-3.6-fix-build-with-gcc-10.patch"))
       (sha256
        (base32
         "153vcvj8gvgwakzr4j0kndc0b7wn91c2g1vy2vg24s6spxcc23gn"))))))

(define-public llvm-3.5
  (package (inherit llvm-3.6)
    (version "3.5.2")
    (source
     (origin
       (method url-fetch)
       (uri (llvm-uri "llvm" version))
       (patches
        (search-patches "llvm-3.5-fix-clang-build-with-gcc5.patch"))
       (sha256
        (base32
         "0xf5q17kkxsrm2gsi93h4pwlv663kji73r2g4asb97klsmb626a4"))))))

(define-public clang-runtime-3.5
  (let ((runtime (clang-runtime-from-llvm
                  llvm-3.5
                  "1hsdnzzdr5kglz6fnv3lcsjs222zjsy14y8ax9dy6zqysanplbal"
                  '("clang-runtime-asan-build-fixes.patch"
                    "clang-runtime-3.5-libsanitizer-mode-field.patch"
                    "clang-3.5-libsanitizer-ustat-fix.patch"))))
    (package/inherit runtime
      (arguments
       (substitute-keyword-arguments (package-arguments runtime)
         ((#:phases phases '%standard-phases)
          `(modify-phases ,phases
             ;; glibc no longer includes rpc/xdr.h, so we use the headers from
             ;; libtirpc.
             (add-after 'unpack 'find-rpc-includes
               (lambda* (#:key inputs #:allow-other-keys)
                 (setenv "CPATH"
                         (string-append
                          (search-input-directory inputs "/include/tirpc")
                          ":" (or (getenv "CPATH") "")))
                 (setenv "CPLUS_INCLUDE_PATH"
                         (string-append
                          (search-input-directory inputs "/include/tirpc")
                          ":" (or (getenv "CPLUS_INCLUDE_PATH") "")))))))))
      (inputs
       `(("libtirpc" ,libtirpc)
         ("llvm" ,llvm-3.5))))))

(define-public clang-3.5
  (clang-from-llvm llvm-3.5 clang-runtime-3.5
                   "0846h8vn3zlc00jkmvrmy88gc6ql6014c02l4jv78fpvfigmgssg"
                   #:patches '("clang-3.5-libc-search-path.patch")))

;; Default LLVM and Clang version.
(define-public llvm llvm-9)
(define-public clang-runtime clang-runtime-9)
(define-public clang clang-9)
(define-public clang-toolchain clang-toolchain-9)

(define-public llvm-for-rocm
  (package
    ;; Actually based on LLVM 13 as of v4.3, but llvm-12 works just fine.
    (inherit llvm-12)
    (name "llvm-for-rocm")
    (version "4.3.0")                         ;this must match '%rocm-version'
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/RadeonOpenCompute/llvm-project.git")
                    (commit (string-append "rocm-" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0p75nr1qpmy6crymdax5hm40wkimman4lnglz4x5cnbiqindya7s"))
              (patches
               (search-patches "llvm-roc-4.2.0-add_Object.patch"
                               "llvm-roc-3.0.0-add_libraries.patch"
                               "llvm-roc-4.0.0-remove-isystem-usr-include.patch"))))
    (arguments
     (substitute-keyword-arguments (package-arguments llvm-12)
       ((#:phases phases '%standard-phases)
        `(modify-phases ,phases
           (add-after 'unpack 'chdir
             (lambda _
               (chdir "llvm")))))
       ((#:configure-flags flags)
        ''("-DLLVM_ENABLE_PROJECTS=llvm;clang;lld"
           "-DLLVM_TARGETS_TO_BUILD=AMDGPU;X86"
           "-DCMAKE_SKIP_BUILD_RPATH=FALSE"
           "-DCMAKE_BUILD_WITH_INSTALL_RPATH=FALSE"
           "-DBUILD_SHARED_LIBS:BOOL=TRUE"
           "-DLLVM_VERSION_SUFFIX="))))
    (properties `((hidden? . #t)
                  ,@(package-properties llvm-12)))))



(define-public libunwind-headers
  (package
    (name "libunwind-headers")
    (version "12.0.1")
    (source (origin
              (method url-fetch)
              (uri (llvm-uri "libunwind" version))
              (sha256
               (base32
                "192ww6n81lj2mb9pj4043z79jp3cf58a9c2qrxjwm5c3a64n1shb"))))
    (build-system cmake-build-system)
    (arguments
     '(#:phases (modify-phases (map (lambda (phase)
                                      (assq phase %standard-phases))
                                    '(set-paths unpack))
                  (add-after 'unpack 'install
                    (lambda* (#:key outputs #:allow-other-keys)
                      (let ((out (assoc-ref outputs "out")))
                        (mkdir out)
                        (copy-recursively "include"
                                          (string-append out "/include"))))))))
    (home-page "https://clang.llvm.org/docs/Toolchain.html")
    (synopsis "LLVM libunwind header files")
    (description
     "This package contains header files for the LLVM C++ unwinding library.")
    (license license:asl2.0)))          ;with LLVM exceptions

(define-public lld
  (package
    (name "lld")
    (version "12.0.1")
    (source (origin
              (method url-fetch)
              (uri (llvm-uri "lld" version))
              (sha256
               (base32
                "0qg3fgc7wj34hdkqn21y03zcmsdd01szhhm1hfki63iifrm3y2v9"))))
    (build-system cmake-build-system)
    (native-inputs
     ;; Note: check <https://bugs.llvm.org/show_bug.cgi?id=49228> to see
     ;; whether this is still necessary.
     `(("libunwind-headers" ,libunwind-headers)))
    (inputs
     `(("llvm" ,llvm-12)))
    (arguments
     `(#:build-type "Release"
       ;; TODO: Tests require the lit tool, which isn't installed by the LLVM
       ;; package.
       #:tests? #f))
    (home-page "https://lld.llvm.org/")
    (synopsis "Linker from the LLVM project")
    (description "LLD is a high-performance linker, built as a set of reusable
components which highly leverage existing libraries in the larger LLVM Project.")
    (license license:asl2.0))) ; With LLVM exception

(define* (make-lld-wrapper lld #:key lld-as-ld?)
  "Return a LLD wrapper.  When LLD-AS-LD? is true, create a 'ld' symlink that
points to 'lld'."
  (package
    (name (if lld-as-ld? "lld-as-ld-wrapper" "lld-wrapper"))
    (version "0")
    (source #f)
    (build-system trivial-build-system)
    (inputs `(("ld.lld-wrapper" ,(make-ld-wrapper "ld.lld-wrapper"
                                                  #:binutils lld
                                                  #:linker "ld.lld"))
              ("lld-wrapper" ,(make-ld-wrapper "lld-wrapper"
                                               #:binutils lld
                                               #:linker "lld"))))
    (arguments
     (list #:builder
           #~(let ((ld.lld (string-append #$(this-package-input
                                             "ld.lld-wrapper")
                                          "/bin/ld.lld"))
                   (lld (string-append #$(this-package-input "lld-wrapper")
                                       "/bin/lld")))
               (mkdir #$output)
               (mkdir (string-append #$output "/bin"))
               (symlink ld.lld (string-append #$output "/bin/ld.lld"))
               (symlink lld (string-append #$output "/bin/lld"))
               (when #$lld-as-ld?
                 (symlink ld.lld (string-append #$output "/bin/ld"))))))
    (synopsis "LLD linker wrapper")
    (description "This is a linker wrapper for LLD; like @code{ld-wrapper}, it
wraps the linker to add any missing @code{-rpath} flags, and to detect any
misuse of libraries outside of the store.")
    (home-page "https://www.gnu.org/software/guix/")
    (license license:gpl3+)))

;;; A LLD wrapper suitable to use with -fuse-ld and GCC or with Clang.
(define-public lld-wrapper
  (make-lld-wrapper lld))

;;; A LLD wrapper that can be used as a (near) drop-in replacement to GNU ld.
(define-public lld-as-ld-wrapper
  (make-lld-wrapper lld #:lld-as-ld? #t))

(define-public lldb
  (package
    (name "lldb")
    (version "12.0.1")
    (source (origin
              (method url-fetch)
              (uri (llvm-uri "lldb" version))
              (sha256
               (base32
                "0g3pj1m3chafavpr35r9fynm85y2hdyla6klj0h28khxs2613i78"))))
    (build-system cmake-build-system)
    (arguments
     `(#:configure-flags '("-DCMAKE_CXX_COMPILER=clang++")))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("swig" ,swig)))
    (inputs
     `(("clang" ,clang-12)
       ("llvm" ,llvm-12)

       ;; Optional (but recommended) inputs.
       ("curses" ,ncurses)
       ("editline" ,libedit)
       ("liblzma" ,xz)
       ("libxml2" ,libxml2)
       ("lua" ,lua)
       ("python" ,python)))
    (home-page "https://lldb.llvm.org/")
    (synopsis "Low level debugger")
    (description
     "LLDB is a high performance debugger built as a set of reusable components
which highly leverage existing libraries in the larger LLVM project.")
    (license license:asl2.0))) ;with LLVM exceptions

(define-public libcxx
  (package
    (name "libcxx")
    (version "9.0.1")
    (source
     (origin
       (method url-fetch)
       (uri (llvm-uri "libcxx" version))
       (sha256
        (base32
         "0d2bj5i6mk4caq7skd5nsdmz8c2m5w5anximl5wz3x32p08zz089"))))
    (build-system cmake-build-system)
    (arguments
     `(#:phases
       (modify-phases (@ (guix build cmake-build-system) %standard-phases)
         (add-after 'set-paths 'adjust-CPLUS_INCLUDE_PATH
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((gcc (assoc-ref inputs  "gcc")))
               ;; Hide GCC's C++ headers so that they do not interfere with
               ;; the ones we are attempting to build.
               (setenv "CPLUS_INCLUDE_PATH"
                       (string-join (delete (string-append gcc "/include/c++")
                                            (string-split (getenv "CPLUS_INCLUDE_PATH")
                                                          #\:))
                                    ":"))
               (format #t
                       "environment variable `CPLUS_INCLUDE_PATH' changed to ~a~%"
                       (getenv "CPLUS_INCLUDE_PATH"))
               #t))))))
    (native-inputs
     `(("clang" ,clang)
       ("llvm" ,llvm)))
    (home-page "https://libcxx.llvm.org")
    (synopsis "C++ standard library")
    (description
     "This package provides an implementation of the C++ standard library for
use with Clang, targeting C++11, C++14 and above.")
    (license license:expat)))

;; Libcxx files specifically used by PySide2.
(define-public libcxx-6
  (package
    (inherit libcxx)
    (version (package-version llvm-6))
    (source
     (origin
       (inherit (package-source libcxx))
       (uri (llvm-uri "libcxx" version))
       (sha256
        (base32
         "0rzw4qvxp6qx4l4h9amrq02gp7hbg8lw4m0sy3k60f50234gnm3n"))))
    (native-inputs
     `(("clang" ,clang-6)
       ("llvm" ,llvm-6)))))

(define-public libcxxabi-6
  (package
    (name "libcxxabi")
    (version "6.0.1")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/llvm/llvm-project")
             (commit (string-append "llvmorg-" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "0ki6796b5z08kh3a3rbysr5wwb2dkl6wal5dzd03i4li5xfkvx1g"))))
    (build-system cmake-build-system)
    (arguments
     `(#:configure-flags
       (list (string-append "-DLIBCXXABI_LIBCXX_INCLUDES="
                            (assoc-ref %build-inputs "libcxx")
                            "/include")
             "-DCMAKE_C_COMPILER=clang"
             "-DCMAKE_CXX_COMPILER=clang++")
       #:phases
       (modify-phases (@ (guix build cmake-build-system) %standard-phases)
         (add-after 'unpack 'chdir
           (lambda _ (chdir "libcxxabi")))
         (add-after 'set-paths 'adjust-CPLUS_INCLUDE_PATH
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((gcc (assoc-ref inputs  "gcc")))
               ;; Hide GCC's C++ headers so that they do not interfere with
               ;; the ones we are attempting to build.
               (setenv "CPLUS_INCLUDE_PATH"
                       (string-join
                        (cons (string-append
                               (assoc-ref inputs "libcxx") "/include/c++/v1")
                              (delete (string-append gcc "/include/c++")
                                      (string-split (getenv "CPLUS_INCLUDE_PATH")
                                                    #\:)))
                        ":"))
               (format #true
                       "environment variable `CPLUS_INCLUDE_PATH' changed to ~a~%"
                       (getenv "CPLUS_INCLUDE_PATH")))))
         (add-after 'install 'install-headers
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((include-dir (string-append
                                 (assoc-ref outputs "out") "/include")))
               (install-file "../libcxxabi/include/__cxxabi_config.h" include-dir)
               (install-file "../libcxxabi/include/cxxabi.h" include-dir)))))))
    (native-inputs
     `(("clang" ,clang-6)
       ("llvm" ,llvm-6)
       ("libcxx" ,libcxx-6)))
    (home-page "https://libcxxabi.llvm.org")
    (synopsis "C++ standard library support")
    (description
     "This package provides an implementation of low level support for a
standard C++ library.")
    (license license:expat)))

(define-public libcxx+libcxxabi-6
  (package
    (inherit libcxx-6)
    (name "libcxx+libcxxabi")
    (version (package-version libcxx-6))
    (arguments
     `(#:configure-flags
       (list "-DLIBCXX_CXX_ABI=libcxxabi"
             (string-append "-DLIBCXX_CXX_ABI_INCLUDE_PATHS="
                            (assoc-ref %build-inputs "libcxxabi")
                            "/include"))
       #:phases
       (modify-phases (@ (guix build cmake-build-system) %standard-phases)
         (add-after 'set-paths 'adjust-CPLUS_INCLUDE_PATH
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((gcc (assoc-ref inputs  "gcc")))
               ;; Hide GCC's C++ headers so that they do not interfere with
               ;; the ones we are attempting to build.
               (setenv "CPLUS_INCLUDE_PATH"
                       (string-join
                        (delete (string-append gcc "/include/c++")
                                (string-split (getenv "CPLUS_INCLUDE_PATH")
                                              #\:))
                        ":"))
               (format #true
                       "environment variable `CPLUS_INCLUDE_PATH' changed to ~a~%"
                       (getenv "CPLUS_INCLUDE_PATH"))))))))
    (native-inputs
     `(("clang" ,clang-6)
       ("llvm" ,llvm-6)
       ("libcxxabi" ,libcxxabi-6)))))

(define-public libclc
  (package
    (name "libclc")
    (version "9.0.1")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/llvm/llvm-project")
             (commit (string-append "llvmorg-" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "1d1qayvrvvc1di7s7jfxnjvxq2az4lwq1sw1b2gq2ic0nksvajz0"))))
    (build-system cmake-build-system)
    (arguments
     `(#:configure-flags
       (list (string-append "-DLLVM_CLANG="
                            (assoc-ref %build-inputs "clang")
                            "/bin/clang")
             (string-append "-DPYTHON="
                            (assoc-ref %build-inputs "python")
                            "/bin/python3"))
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'chdir
           (lambda _ (chdir "libclc") #t)))))
    (native-inputs
     `(("clang" ,clang)
       ("llvm" ,llvm)
       ("python" ,python)))
    (home-page "https://libclc.llvm.org")
    (synopsis "Libraries for the OpenCL programming language")
    (description
     "This package provides an implementation of the OpenCL library
requirements according to version 1.1 of the OpenCL specification.")
    ;; Apache license 2.0 with LLVM exception
    (license license:asl2.0)))

(define-public libomp
  (package
    (name "libomp")
    (version "9.0.1")
    (source (origin
              (method url-fetch)
              (uri (llvm-uri "openmp" version))
              (sha256
               (base32
                "1knafnpp0f7hylx8q20lkd6g1sf0flly572dayc5d5kghh7hd52w"))
              (file-name (string-append "libomp-" version ".tar.xz"))))
    (build-system cmake-build-system)
    ;; XXX: Note this gets built with GCC because building with Clang itself
    ;; fails (missing <atomic>, even when libcxx is added as an input.)
    (arguments
     '(#:configure-flags '("-DLIBOMP_USE_HWLOC=ON"
                           "-DOPENMP_TEST_C_COMPILER=clang"
                           "-DOPENMP_TEST_CXX_COMPILER=clang++")
       #:test-target "check-libomp"))
    (native-inputs
     `(("clang" ,clang)
       ("llvm" ,llvm)
       ("perl" ,perl)
       ("pkg-config" ,pkg-config)))
    (inputs
     `(("hwloc" ,hwloc "lib")))
    (home-page "https://openmp.llvm.org")
    (synopsis "OpenMP run-time support library")
    (description
     "This package provides the run-time support library developed by the LLVM
project for the OpenMP multi-theaded programming extension.  This package
notably provides @file{libgomp.so}, which is has a binary interface compatible
with that of libgomp, the GNU Offloading and Multi Processing Library.")
    (license license:expat)))

(define-public python-llvmlite
  (package
    (name "python-llvmlite")
    (version "0.34.0")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "llvmlite" version))
       (sha256
        (base32
         "0qqzs6h34002ig2jn31vk08q9hh5kn84lhmv4bljz3yakg8y0gph"))))
    (build-system python-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'patch-reference-to-llvmlite.so
           ;; ctypes.CDLL uses dlopen to load libllvmlite.so, which
           ;; fails, so locate it by its absolute path.  Change it in
           ;; ffi.py, not utils.py, because setup.py relies on the
           ;; output of get_library_name for proper installation.
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (libllvmlite.so (string-append out "/lib/python"
                                                   ,(version-major+minor
                                                     (package-version python))
                                                   "/site-packages/llvmlite/"
                                                   "binding/libllvmlite.so")))
               (substitute* "llvmlite/binding/ffi.py"
                 (("_lib_name = get_library_name\\(\\)")
                  (format #f "_lib_name = ~s" libllvmlite.so)))
               #t)))
         (add-after 'unpack 'skip-failing-tests
           (lambda _
             (substitute* "llvmlite/tests/test_binding.py"
               (("    def test_libm\\(self\\).*" all)
                (string-append "    @unittest.skip('Fails on Guix')\n" all)))
             #t))
         (add-before 'build 'set-compiler/linker-flags
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((llvm (assoc-ref inputs "llvm")))
               ;; Refer to ffi/Makefile.linux.
               (setenv "CPPFLAGS" "-fPIC")
               (setenv "LDFLAGS" (string-append "-Wl,-rpath="
                                                llvm "/lib"))
               #t))))))
    (inputs
     `(("llvm"
        ,(let* ((patches-commit "061ab39e1d4591f3aa842458252a19ad01858167")
                (patch-uri (lambda (name)
                             (string-append
                              "https://raw.githubusercontent.com/numba/"
                              "llvmlite/" patches-commit "/conda-recipes/"
                              name)))
                (patch-origin (lambda (name hash)
                                (origin
                                  (method url-fetch)
                                  (uri (patch-uri name))
                                  (sha256 (base32 hash)))))
                (arch-independent-patches
                 (list
                  (patch-origin
                   "partial-testing.patch"
                   "1cwy4jsmijd838q0bylxl77vrwrb7ksijfly5062ay32303jmj86")
                  (patch-origin
                   "0001-Revert-Limit-size-of-non-GlobalValue-name.patch"
                   "0n4k7za0smx6qwdipsh6x5lm7bfvzzb3p9r8q1zq1dqi4na21295"))))
           (if (string=? "aarch64-linux" (%current-system))
               (package
                 (inherit llvm-9)
                 (source
                  (origin
                    (inherit (package-source llvm-9))
                    (patches
                     `(,(patch-origin
                         "intel-D47188-svml-VF_LLVM9.patch"
                         "1f9ld7wc8bn4gbvdsmk07w1rq371h42vy05rxsq9a22f57rljqbd")
                       ,@arch-independent-patches
                       ,@(origin-patches (package-source llvm-9)))))))
               (package
                 (inherit llvm-10)
                 (source
                  (origin
                    (inherit (package-source llvm-10))
                    (patches
                     `(,(patch-origin
                         "intel-D47188-svml-VF.patch"
                         "0n46qjwfl7i12bl7wp0cyxl277axfvaaz5lxx5kdlgwjcpa582dg")
                       ,(patch-origin
                         "expect-fastmath-entrypoints-in-add-TLI-mappings.ll.patch"
                         "0jxhjkkwwi1cy898l2n57l73ckpw0v73lqnrifp7r1mwpsh624nv")
                       ,@arch-independent-patches
                       ,@(origin-patches (package-source llvm-10))))))))))))
    (home-page "https://llvmlite.pydata.org")
    (synopsis "Wrapper around basic LLVM functionality")
    (description
     "This package provides a Python binding to LLVM for use in Numba.")
    (license license:bsd-3)))

(define-public (clang-python-bindings clang)
  "Return a package for the Python bindings of CLANG."
  (package
    (inherit clang)
    (name "python-clang")
    (build-system python-build-system)
    (outputs '("out"))
    (arguments
     '(#:phases (modify-phases %standard-phases
                  (add-before 'build 'change-directory
                    (lambda _
                      (chdir "bindings/python")))
                  (add-before 'build 'create-setup-py
                    (lambda _
                      ;; Generate a basic "setup.py", enough so it can be
                      ;; built and installed.
                      (with-output-to-file "setup.py"
                        (lambda ()
                          (display "from setuptools import setup
setup(name=\"clang\", packages=[\"clang\"])\n")))))
                  (add-before 'build 'set-libclang-file-name
                    (lambda* (#:key inputs #:allow-other-keys)
                      ;; Record the absolute file name of libclang.so.
                      (let ((clang (assoc-ref inputs "clang")))
                        (substitute* "clang/cindex.py"
                          (("libclang\\.so")
                           (string-append clang "/lib/libclang.so")))))))))
    (inputs `(("clang" ,clang)))
    (synopsis "Python bindings to libclang")))

(define-public python-clang-10
  (clang-python-bindings clang-10))

(define-public python-clang-11
  (clang-python-bindings clang-11))

(define-public python-clang-12
  (clang-python-bindings clang-12))

(define-public emacs-clang-format
  (package
    (inherit clang)
    (name "emacs-clang-format")
    (build-system emacs-build-system)
    (inputs
     `(("clang" ,clang)))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'configure
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((clang (assoc-ref inputs "clang")))
               (copy-file "tools/clang-format/clang-format.el" "clang-format.el")
               (emacs-substitute-variables "clang-format.el"
                 ("clang-format-executable"
                  (string-append clang "/bin/clang-format"))))
             #t)))))
    (synopsis "Format code using clang-format")
    (description "This package filters code through @code{clang-format}
to fix its formatting.  @code{clang-format} is a tool that formats
C/C++/Obj-C code according to a set of style options, see
@url{https://clang.llvm.org/docs/ClangFormatStyleOptions.html}.")))

(define-public emacs-clang-rename
  (package
    (inherit clang)
    (name "emacs-clang-rename")
    (build-system emacs-build-system)
    (inputs
     `(("clang" ,clang)))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'configure
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((clang (assoc-ref inputs "clang")))
               (copy-file "tools/clang-rename/clang-rename.el" "clang-rename.el")
               (emacs-substitute-variables "clang-rename.el"
                 ("clang-rename-binary"
                  (string-append clang "/bin/clang-rename"))))
             #t)))))
    (synopsis "Rename every occurrence of a symbol using clang-rename")
    (description "This package renames every occurrence of a symbol at point
using @code{clang-rename}.")))


;;;
;;; LLVM variants.
;;;

(define make-ocaml-llvm
  ;; Make it a memoizing procedure so its callers below don't end up defining
  ;; two equal-but-not-eq "ocaml-llvm" packages for the default LLVM.
  (mlambdaq (llvm)
    (package
      (inherit llvm)
      (name "ocaml-llvm")
      (outputs '("out"))
      (arguments
       `(#:configure-flags
         (list
          (string-append "-DLLVM_OCAML_EXTERNAL_LLVM_LIBDIR="
                         (assoc-ref %build-inputs "llvm") "/lib")
          "-DBUILD_SHARED_LIBS=TRUE"
          "-DLLVM_OCAML_OUT_OF_TREE=TRUE"
          (string-append "-DLLVM_OCAML_INSTALL_PATH="
                         (assoc-ref %outputs "out") "/lib/ocaml/site-lib"))
         #:phases
         (modify-phases %standard-phases
           (replace 'build
             (lambda _
               (invoke "make" "ocaml_all")))
           (replace 'install
             (lambda _
               (invoke "cmake" "-P" "bindings/ocaml/cmake_install.cmake"))))))
      (inputs
       `(("llvm" ,llvm)))
      (native-inputs
       `(("ocaml" ,ocaml)
         ("ocaml-findlib" ,ocaml-findlib)
         ("ocaml-ounit" ,ocaml-ounit)
         ("python" ,python)))
      (propagated-inputs
       `(("ocaml-integers" ,ocaml-integers)
         ("ocaml-ctypes" ,ocaml-ctypes)))
      (synopsis "OCaml bindings to LLVM")
      (description "This package contains the OCaml bindings distributed with
LLVM."))))

(define-public ocaml-llvm (make-ocaml-llvm llvm))
(define-public ocaml-llvm-9 (make-ocaml-llvm llvm-9))
(define-public ocaml-llvm-10 (make-ocaml-llvm llvm-10))
(define-public ocaml-llvm-11 (make-ocaml-llvm llvm-11))

(define-public llvm-julia
  (package
    (inherit llvm-11)
    (name "llvm-julia")
    (properties `((hidden? . #t)
                  ,@(package-properties llvm-11)))
    (source (origin
              (inherit (package-source llvm-11))
              ;; Those patches are inside the Julia source repo.
              ;; They are _not_ Julia specific (https://github.com/julialang/julia#llvm)
              ;; but they are required to build Julia.
              ;; Discussion: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=919628
              (patches
               (map (match-lambda
                      ((name hash)
                       (julia-patch name hash)))
                    (list
                     '("llvm-D27629-AArch64-large_model_6.0.1"
                       "1qrshmlqvnasdyc158vfn3hnbigqph3lsq7acb9w8lwkpnnm2j4z")
                     '("llvm8-D34078-vectorize-fdiv"
                       "19spqc3xsazn1xs9gpcgv9ldadfkv49rmc5khl7sf1dlmhgi4602")
                     '("llvm-7.0-D44650"
                       "1h55kkmkiisfj6sk956if2bcj9s0v6n5czn8dxb870vp5nccj3ir")
                     '("llvm7-symver-jlprefix"
                       "00ng32x6xhm9czczirn5r1q1mc1myad44fqhi061hwh1vb46dwgm")
                     '("llvm-6.0-DISABLE_ABI_CHECKS"
                       "014fawd1ba7yckalypfld22zgic87x9nx3cim42zrwygywd36pyg")
                     '("llvm9-D50010-VNCoercion-ni"
                       "1s1d3sjsiq4vxg7ncy5cz56zgy5vcq6ls3iqaiqkvr23wyryqmdx")
                     '("llvm7-revert-D44485"
                       "0f59kq3p3mpwsbmskypbi4zn01l6ig0x7v2rjp08k2r8z8m6fa8n")
                     '("llvm-11-D75072-SCEV-add-type"
                       "176xi1lnbnv2rcs05ywhyb7pd0xgmibayvwzksksg44wg2dh8mbx")
                     '("llvm-julia-tsan-custom-as"
                       "0awh40kf6lm4wn1nsjd1bmhfwq7rqj811szanp2xkpspykw9hg9s")
                     '("llvm-D80101"
                       "1gsdwmgmpbignvqyxcnlprj899259p3dvdznlncd84ss445qgq3j")
                     '("llvm-D84031"
                       "0nks9sbk7p0r5gyr0idrmm93a5fmdai8kihz9532dx4zhcvvqbjc")
                     '("llvm-10-D85553"
                       "1zjq7j9q2qp56hwkc8yc8f0z7kvam3j7hj8sb7qyd77r255ff78l")
                     '("llvm-10-unique_function_clang-sa"
                       "1jys9w2zqk3dasnxqh0qz5ij7rxi6mkgq9pqjsclmamr5169zyan")
                     ;'("llvm-D88630-clang-cmake"
                     ;  "0rs6s71nqnjkny7i69gqazhqj5jqfdr0bkxs2v5a55sfx8fa1k54")
                     '("llvm-11-D85313-debuginfo-empty-arange"
                       "1f672d5385xpgb8yrim8d3b7wg2z1l81agnshm1q61kdvjixqx32")
                     '("llvm-11-D90722-rtdyld-absolute-relocs"
                       "0kmnai229yyxkmpk9lxd180mcnhk2i8d87k2sg89gc8as18w10r6")
                     '("llvm-invalid-addrspacecast-sink"
                       "1n1b7j4s80vj7x5377aj9vyphmxx1q6bm0chhkxp6zsy3mx3g2ry")
                     '("llvm-11-D92906-ppc-setjmp"
                       "0cmd4dsblp7a8m03j16dqxws0ijh55zf4jzzxmj341qxa1gamdp9")
                     '("llvm-11-PR48458-X86ISelDAGToDAG"
                       "0vwzvlhsdazhxg4gj8g2f00a4f8qc5cgac23w575xk3pgba1jh6y")
                     '("llvm-11-D93092-ppc-knownbits"
                       "1748bypsc7c9lbs3fnkv0kwvch6bn85kj98j4jdaz254ig0wa6xj")
                     '("llvm-11-D93154-globalisel-as"
                       "1k5wd4z3pa7zj0gyjkif7viqj906dhqlbb7dc95gig40nbxv6zpj")
                     '("llvm-11-ppc-half-ctr"
                       "0piywisfz6cmw3133kz7vzhiqflq2y7igakqxlym0gi8pqylv7w9")
                     '("llvm-11-ppc-sp-from-bp"
                       "1wmg3485cx5f9pbykyl3jibk1wwv4w1x30hl4jyfndzr2yh8azf9")
                     '("llvm-rGb498303066a6-gcc11-header-fix"
                       "0hkd4rwhvh8g2yh13g29wiwnjpv2yd1hdyiv1ryw8izl25bz9c67")
                     '("llvm-11-D94813-mergeicmps"
                       "0cmy0ywkgyrdcvr9bd6pd912lyd4gcsrib4z0v05dwgcdxhk7y29")
                     '("llvm-11-D94980-CTR-half"
                       "1yf8cxib3z8hz7zi9n6v2g2c6vpfr4slq9hpx8m8yq8f1jbyw3fw")
                     '("llvm-11-D94058-sext-atomic-ops"
                       "1x6p6k6q651z5jcqxx8vj17cxnv196mka7mwn7dpp6c23lwgfdpb")
                     '("llvm-11-D96283-dagcombine-half"
                       "0lv4iq2f8qrcz1xyxfic3bcr5p0aqam3a7c6pp6fnw3riixm096k"))))
              (patch-flags '("-p1"))))
    (arguments
     (substitute-keyword-arguments (package-arguments llvm-11)
       ((#:phases phases)
        `(modify-phases ,phases
           (add-after 'unpack 'patch-round-two
             ;; We have to do the patching in two rounds because we can't
             ;; pass '-p1' and '-p2' in the source field.
             (lambda* (#:key inputs #:allow-other-keys)
               (map (lambda (patchname)
                      (invoke "patch" patchname "-p2"))
                    (list "llvm-11-AArch64-FastIsel-bug"
                          "llvm-11-D97435-AArch64-movaddrreg"
                          "llvm-11-D97571-AArch64-loh"
                          "llvm-11-aarch64-addrspace"))))))
       ((#:build-type _) "Release")
       ((#:configure-flags flags)
        `(list
           ;; Build a native compiler and the NVPTX backend (NVIDIA) since
           ;; Julia insists on it, nothing more.  This reduces build times and
           ;; disk usage.
           ,(string-append "-DLLVM_TARGETS_TO_BUILD=" (system->llvm-target))
           "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=NVPTX"

           "-DLLVM_INSTALL_UTILS=ON"
           "-DLLVM_BUILD_TESTS=ON"
           "-DLLVM_ENABLE_FFI=ON"
           "-DLLVM_ENABLE_RTTI=ON"
           ;; "-DLLVM_HOST_TRIPLE=${stdenv.hostPlatform.config}"
           ;; "-DLLVM_DEFAULT_TARGET_TRIPLE=${stdenv.hostPlatform.config}"
           ;; "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=WebAssembly"
           "-DLLVM_ENABLE_DUMP=ON"
           "-DLLVM_LINK_LLVM_DYLIB=ON"
           "-DLLVM_VERSION_SUFFIX:STRING=jl"))))
    (inputs
     (append
       (package-inputs llvm-11)
       `(("llvm-11-AArch64-FastIsel-bug"
          ,(julia-patch "llvm-11-AArch64-FastIsel-bug"
                        "1m2vddj1mw4kbij8hbrx82piyy6bvr2x7wwdnlxfaqcm72ipzyh9"))
         ("llvm-11-D97435-AArch64-movaddrreg"
          ,(julia-patch "llvm-11-D97435-AArch64-movaddrreg"
                        "10jnavq9ljkj7j2gqj2zd1pwqpqb5zs3zp9h96pmz0djbmxwa86y"))
         ("llvm-11-D97571-AArch64-loh"
          ,(julia-patch "llvm-11-D97571-AArch64-loh"
                        "128zcbg1w1j7hngsf7z1a7alc6lig6l2rqgjp6i8nk3k3f842v6n"))
         ("llvm-11-aarch64-addrspace"
          ,(julia-patch "llvm-11-aarch64-addrspace"
                        "0ckbzgfirxrf2d5bpinpngp7gnilbjrk0cbdfyl3h6f5v6i6xj6m")))))))