Coverage Report

Created: 2019-04-21 11:35

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/tools/polly/lib/External/isl/isl_schedule.c
Line
Count
Source (jump to first uncovered line)
1
/*
2
 * Copyright 2011      INRIA Saclay
3
 * Copyright 2012-2014 Ecole Normale Superieure
4
 * Copyright 2016      Sven Verdoolaege
5
 *
6
 * Use of this software is governed by the MIT license
7
 *
8
 * Written by Sven Verdoolaege, INRIA Saclay - Ile-de-France,
9
 * Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod,
10
 * 91893 Orsay, France
11
 * and Ecole Normale Superieure, 45 rue d'Ulm, 75230 Paris, France
12
 */
13
14
#include <isl/ctx.h>
15
#include <isl/val.h>
16
#include <isl_aff_private.h>
17
#include <isl/map.h>
18
#include <isl/set.h>
19
#include <isl/schedule.h>
20
#include <isl/schedule_node.h>
21
#include <isl_sort.h>
22
#include <isl/printer.h>
23
#include <isl_schedule_private.h>
24
#include <isl_schedule_tree.h>
25
#include <isl_schedule_node_private.h>
26
27
/* Return a schedule encapsulating the given schedule tree.
28
 *
29
 * We currently only allow schedule trees with a domain or extension as root.
30
 *
31
 * The leaf field is initialized as a leaf node so that it can be
32
 * used to represent leaves in the constructed schedule.
33
 * The reference count is set to -1 since the isl_schedule_tree
34
 * should never be freed.  It is up to the (internal) users of
35
 * these leaves to ensure that they are only used while the schedule
36
 * is still alive.
37
 */
38
__isl_give isl_schedule *isl_schedule_from_schedule_tree(isl_ctx *ctx,
39
  __isl_take isl_schedule_tree *tree)
40
3.18k
{
41
3.18k
  enum isl_schedule_node_type type;
42
3.18k
  isl_schedule *schedule;
43
3.18k
44
3.18k
  if (!tree)
45
0
    return NULL;
46
3.18k
  type = isl_schedule_tree_get_type(tree);
47
3.18k
  if (type != isl_schedule_node_domain &&
48
3.18k
      
type != isl_schedule_node_extension6
)
49
3.18k
    
isl_die0
(isl_schedule_tree_get_ctx(tree), isl_error_unsupported,
50
3.18k
      "root of schedule tree should be a domain or extension",
51
3.18k
      goto error);
52
3.18k
53
3.18k
  schedule = isl_calloc_type(ctx, isl_schedule);
54
3.18k
  if (!schedule)
55
0
    goto error;
56
3.18k
57
3.18k
  schedule->ref = 1;
58
3.18k
  schedule->root = tree;
59
3.18k
  schedule->leaf = isl_schedule_tree_leaf(ctx);
60
3.18k
61
3.18k
  if (!schedule->leaf)
62
0
    return isl_schedule_free(schedule);
63
3.18k
  return schedule;
64
0
error:
65
0
  isl_schedule_tree_free(tree);
66
0
  return NULL;
67
3.18k
}
68
69
/* Return a pointer to a schedule with as single node
70
 * a domain node with the given domain.
71
 */
72
__isl_give isl_schedule *isl_schedule_from_domain(
73
  __isl_take isl_union_set *domain)
74
1.63k
{
75
1.63k
  isl_ctx *ctx;
76
1.63k
  isl_schedule_tree *tree;
77
1.63k
78
1.63k
  ctx = isl_union_set_get_ctx(domain);
79
1.63k
  tree = isl_schedule_tree_from_domain(domain);
80
1.63k
  return isl_schedule_from_schedule_tree(ctx, tree);
81
1.63k
}
82
83
/* Return a pointer to a schedule with as single node
84
 * a domain node with an empty domain.
85
 */
86
__isl_give isl_schedule *isl_schedule_empty(__isl_take isl_space *space)
87
767
{
88
767
  return isl_schedule_from_domain(isl_union_set_empty(space));
89
767
}
90
91
/* Return a new reference to "sched".
92
 */
93
__isl_give isl_schedule *isl_schedule_copy(__isl_keep isl_schedule *sched)
94
26.3k
{
95
26.3k
  if (!sched)
96
2.72k
    return NULL;
97
23.6k
98
23.6k
  sched->ref++;
99
23.6k
  return sched;
100
23.6k
}
101
102
/* Return an isl_schedule that is equal to "schedule" and that has only
103
 * a single reference.
104
 */
105
__isl_give isl_schedule *isl_schedule_cow(__isl_take isl_schedule *schedule)
106
2.31k
{
107
2.31k
  isl_ctx *ctx;
108
2.31k
  isl_schedule_tree *tree;
109
2.31k
110
2.31k
  if (!schedule)
111
0
    return NULL;
112
2.31k
  if (schedule->ref == 1)
113
1.15k
    return schedule;
114
1.16k
115
1.16k
  ctx = isl_schedule_get_ctx(schedule);
116
1.16k
  schedule->ref--;
117
1.16k
  tree = isl_schedule_tree_copy(schedule->root);
118
1.16k
  return isl_schedule_from_schedule_tree(ctx, tree);
119
1.16k
}
120
121
__isl_null isl_schedule *isl_schedule_free(__isl_take isl_schedule *sched)
122
25.7k
{
123
25.7k
  if (!sched)
124
158
    return NULL;
125
25.6k
126
25.6k
  if (--sched->ref > 0)
127
22.4k
    return NULL;
128
3.17k
129
3.17k
  isl_schedule_tree_free(sched->root);
130
3.17k
  isl_schedule_tree_free(sched->leaf);
131
3.17k
  free(sched);
132
3.17k
  return NULL;
133
3.17k
}
134
135
/* Replace the root of "schedule" by "tree".
136
 */
137
__isl_give isl_schedule *isl_schedule_set_root(
138
  __isl_take isl_schedule *schedule, __isl_take isl_schedule_tree *tree)
139
2.31k
{
140
2.31k
  if (!schedule || !tree)
141
0
    goto error;
142
2.31k
  if (schedule->root == tree) {
143
0
    isl_schedule_tree_free(tree);
144
0
    return schedule;
145
0
  }
146
2.31k
147
2.31k
  schedule = isl_schedule_cow(schedule);
148
2.31k
  if (!schedule)
149
0
    goto error;
150
2.31k
  isl_schedule_tree_free(schedule->root);
151
2.31k
  schedule->root = tree;
152
2.31k
153
2.31k
  return schedule;
154
0
error:
155
0
  isl_schedule_free(schedule);
156
0
  isl_schedule_tree_free(tree);
157
0
  return NULL;
158
2.31k
}
159
160
isl_ctx *isl_schedule_get_ctx(__isl_keep isl_schedule *schedule)
161
34.6k
{
162
34.6k
  return schedule ? isl_schedule_tree_get_ctx(schedule->leaf) : NULL;
163
34.6k
}
164
165
/* Return a pointer to the leaf of "schedule".
166
 */
167
__isl_keep isl_schedule_tree *isl_schedule_peek_leaf(
168
  __isl_keep isl_schedule *schedule)
169
6.65k
{
170
6.65k
  return schedule ? schedule->leaf : NULL;
171
6.65k
}
172
173
/* Are "schedule1" and "schedule2" obviously equal to each other?
174
 */
175
isl_bool isl_schedule_plain_is_equal(__isl_keep isl_schedule *schedule1,
176
  __isl_keep isl_schedule *schedule2)
177
0
{
178
0
  if (!schedule1 || !schedule2)
179
0
    return isl_bool_error;
180
0
  if (schedule1 == schedule2)
181
0
    return isl_bool_true;
182
0
  return isl_schedule_tree_plain_is_equal(schedule1->root,
183
0
            schedule2->root);
184
0
}
185
186
/* Return the (parameter) space of the schedule, i.e., the space
187
 * of the root domain.
188
 */
189
__isl_give isl_space *isl_schedule_get_space(
190
  __isl_keep isl_schedule *schedule)
191
1.18k
{
192
1.18k
  enum isl_schedule_node_type type;
193
1.18k
  isl_space *space;
194
1.18k
  isl_union_set *domain;
195
1.18k
196
1.18k
  if (!schedule)
197
0
    return NULL;
198
1.18k
  type = isl_schedule_tree_get_type(schedule->root);
199
1.18k
  if (type != isl_schedule_node_domain)
200
1.18k
    
isl_die0
(isl_schedule_get_ctx(schedule), isl_error_internal,
201
1.18k
      "root node not a domain node", return NULL);
202
1.18k
203
1.18k
  domain = isl_schedule_tree_domain_get_domain(schedule->root);
204
1.18k
  space = isl_union_set_get_space(domain);
205
1.18k
  isl_union_set_free(domain);
206
1.18k
207
1.18k
  return space;
208
1.18k
}
209
210
/* Return a pointer to the root of "schedule".
211
 */
212
__isl_give isl_schedule_node *isl_schedule_get_root(
213
  __isl_keep isl_schedule *schedule)
214
4.60k
{
215
4.60k
  isl_ctx *ctx;
216
4.60k
  isl_schedule_tree *tree;
217
4.60k
  isl_schedule_tree_list *ancestors;
218
4.60k
219
4.60k
  if (!schedule)
220
0
    return NULL;
221
4.60k
222
4.60k
  ctx = isl_schedule_get_ctx(schedule);
223
4.60k
  tree = isl_schedule_tree_copy(schedule->root);
224
4.60k
  schedule = isl_schedule_copy(schedule);
225
4.60k
  ancestors = isl_schedule_tree_list_alloc(ctx, 0);
226
4.60k
  return isl_schedule_node_alloc(schedule, tree, ancestors, NULL);
227
4.60k
}
228
229
/* Return the domain of the root domain node of "schedule".
230
 */
231
__isl_give isl_union_set *isl_schedule_get_domain(
232
  __isl_keep isl_schedule *schedule)
233
530
{
234
530
  if (!schedule)
235
0
    return NULL;
236
530
  return isl_schedule_tree_domain_get_domain(schedule->root);
237
530
}
238
239
/* Traverse all nodes of "sched" in depth first preorder.
240
 *
241
 * If "fn" returns -1 on any of the nodes, then the traversal is aborted.
242
 * If "fn" returns 0 on any of the nodes, then the subtree rooted
243
 * at that node is skipped.
244
 *
245
 * Return 0 on success and -1 on failure.
246
 */
247
isl_stat isl_schedule_foreach_schedule_node_top_down(
248
  __isl_keep isl_schedule *sched,
249
  isl_bool (*fn)(__isl_keep isl_schedule_node *node, void *user),
250
  void *user)
251
1.86k
{
252
1.86k
  isl_schedule_node *node;
253
1.86k
  isl_stat r;
254
1.86k
255
1.86k
  if (!sched)
256
0
    return isl_stat_error;
257
1.86k
258
1.86k
  node = isl_schedule_get_root(sched);
259
1.86k
  r = isl_schedule_node_foreach_descendant_top_down(node, fn, user);
260
1.86k
  isl_schedule_node_free(node);
261
1.86k
262
1.86k
  return r;
263
1.86k
}
264
265
/* Traverse the node of "sched" in depth first postorder,
266
 * allowing the user to modify the visited node.
267
 * The traversal continues from the node returned by the callback function.
268
 * It is the responsibility of the user to ensure that this does not
269
 * lead to an infinite loop.  It is safest to always return a pointer
270
 * to the same position (same ancestors and child positions) as the input node.
271
 */
272
__isl_give isl_schedule *isl_schedule_map_schedule_node_bottom_up(
273
  __isl_take isl_schedule *schedule,
274
  __isl_give isl_schedule_node *(*fn)(
275
    __isl_take isl_schedule_node *node, void *user), void *user)
276
33
{
277
33
  isl_schedule_node *node;
278
33
279
33
  node = isl_schedule_get_root(schedule);
280
33
  isl_schedule_free(schedule);
281
33
282
33
  node = isl_schedule_node_map_descendant_bottom_up(node, fn, user);
283
33
  schedule = isl_schedule_node_get_schedule(node);
284
33
  isl_schedule_node_free(node);
285
33
286
33
  return schedule;
287
33
}
288
289
/* Wrapper around isl_schedule_node_reset_user for use as
290
 * an isl_schedule_map_schedule_node_bottom_up callback.
291
 */
292
static __isl_give isl_schedule_node *reset_user(
293
  __isl_take isl_schedule_node *node, void *user)
294
0
{
295
0
  return isl_schedule_node_reset_user(node);
296
0
}
297
298
/* Reset the user pointer on all identifiers of parameters and tuples
299
 * in the schedule "schedule".
300
 */
301
__isl_give isl_schedule *isl_schedule_reset_user(
302
  __isl_take isl_schedule *schedule)
303
0
{
304
0
  return isl_schedule_map_schedule_node_bottom_up(schedule, &reset_user,
305
0
              NULL);
306
0
}
307
308
/* Wrapper around isl_schedule_node_align_params for use as
309
 * an isl_schedule_map_schedule_node_bottom_up callback.
310
 */
311
static __isl_give isl_schedule_node *align_params(
312
  __isl_take isl_schedule_node *node, void *user)
313
0
{
314
0
  isl_space *space = user;
315
0
316
0
  return isl_schedule_node_align_params(node, isl_space_copy(space));
317
0
}
318
319
/* Align the parameters of all nodes in schedule "schedule"
320
 * to those of "space".
321
 */
322
__isl_give isl_schedule *isl_schedule_align_params(
323
  __isl_take isl_schedule *schedule, __isl_take isl_space *space)
324
0
{
325
0
  schedule = isl_schedule_map_schedule_node_bottom_up(schedule,
326
0
                &align_params, space);
327
0
  isl_space_free(space);
328
0
  return schedule;
329
0
}
330
331
/* Wrapper around isl_schedule_node_pullback_union_pw_multi_aff for use as
332
 * an isl_schedule_map_schedule_node_bottom_up callback.
333
 */
334
static __isl_give isl_schedule_node *pullback_upma(
335
  __isl_take isl_schedule_node *node, void *user)
336
237
{
337
237
  isl_union_pw_multi_aff *upma = user;
338
237
339
237
  return isl_schedule_node_pullback_union_pw_multi_aff(node,
340
237
          isl_union_pw_multi_aff_copy(upma));
341
237
}
342
343
/* Compute the pullback of "schedule" by the function represented by "upma".
344
 * In other words, plug in "upma" in the iteration domains of "schedule".
345
 *
346
 * The schedule tree is not allowed to contain any expansion nodes.
347
 */
348
__isl_give isl_schedule *isl_schedule_pullback_union_pw_multi_aff(
349
  __isl_take isl_schedule *schedule,
350
  __isl_take isl_union_pw_multi_aff *upma)
351
33
{
352
33
  schedule = isl_schedule_map_schedule_node_bottom_up(schedule,
353
33
            &pullback_upma, upma);
354
33
  isl_union_pw_multi_aff_free(upma);
355
33
  return schedule;
356
33
}
357
358
/* Expand the schedule "schedule" by extending all leaves
359
 * with an expansion node with as subtree the tree of "expansion".
360
 * The expansion of the expansion node is determined by "contraction"
361
 * and the domain of "expansion".  That is, the domain of "expansion"
362
 * is contracted according to "contraction".
363
 *
364
 * Call isl_schedule_node_expand after extracting the required
365
 * information from "expansion".
366
 */
367
__isl_give isl_schedule *isl_schedule_expand(__isl_take isl_schedule *schedule,
368
  __isl_take isl_union_pw_multi_aff *contraction,
369
  __isl_take isl_schedule *expansion)
370
0
{
371
0
  isl_union_set *domain;
372
0
  isl_schedule_node *node;
373
0
  isl_schedule_tree *tree;
374
0
375
0
  domain = isl_schedule_get_domain(expansion);
376
0
377
0
  node = isl_schedule_get_root(expansion);
378
0
  node = isl_schedule_node_child(node, 0);
379
0
  tree = isl_schedule_node_get_tree(node);
380
0
  isl_schedule_node_free(node);
381
0
  isl_schedule_free(expansion);
382
0
383
0
  node = isl_schedule_get_root(schedule);
384
0
  isl_schedule_free(schedule);
385
0
  node = isl_schedule_node_expand(node, contraction, domain, tree);
386
0
  schedule = isl_schedule_node_get_schedule(node);
387
0
  isl_schedule_node_free(node);
388
0
389
0
  return schedule;
390
0
}
391
392
/* Intersect the domain of the schedule "schedule" with "domain".
393
 * The root of "schedule" is required to be a domain node.
394
 */
395
__isl_give isl_schedule *isl_schedule_intersect_domain(
396
  __isl_take isl_schedule *schedule, __isl_take isl_union_set *domain)
397
954
{
398
954
  enum isl_schedule_node_type root_type;
399
954
  isl_schedule_node *node;
400
954
401
954
  if (!schedule || !domain)
402
0
    goto error;
403
954
404
954
  root_type = isl_schedule_tree_get_type(schedule->root);
405
954
  if (root_type != isl_schedule_node_domain)
406
954
    
isl_die0
(isl_schedule_get_ctx(schedule), isl_error_invalid,
407
954
      "root node must be a domain node", goto error);
408
954
409
954
  node = isl_schedule_get_root(schedule);
410
954
  isl_schedule_free(schedule);
411
954
  node = isl_schedule_node_domain_intersect_domain(node, domain);
412
954
  schedule = isl_schedule_node_get_schedule(node);
413
954
  isl_schedule_node_free(node);
414
954
415
954
  return schedule;
416
0
error:
417
0
  isl_schedule_free(schedule);
418
0
  isl_union_set_free(domain);
419
0
  return NULL;
420
954
}
421
422
/* Replace the domain of the schedule "schedule" with the gist
423
 * of the original domain with respect to the parameter domain "context".
424
 */
425
__isl_give isl_schedule *isl_schedule_gist_domain_params(
426
  __isl_take isl_schedule *schedule, __isl_take isl_set *context)
427
367
{
428
367
  enum isl_schedule_node_type root_type;
429
367
  isl_schedule_node *node;
430
367
431
367
  if (!schedule || !context)
432
0
    goto error;
433
367
434
367
  root_type = isl_schedule_tree_get_type(schedule->root);
435
367
  if (root_type != isl_schedule_node_domain)
436
367
    
isl_die0
(isl_schedule_get_ctx(schedule), isl_error_invalid,
437
367
      "root node must be a domain node", goto error);
438
367
439
367
  node = isl_schedule_get_root(schedule);
440
367
  isl_schedule_free(schedule);
441
367
  node = isl_schedule_node_domain_gist_params(node, context);
442
367
  schedule = isl_schedule_node_get_schedule(node);
443
367
  isl_schedule_node_free(node);
444
367
445
367
  return schedule;
446
0
error:
447
0
  isl_schedule_free(schedule);
448
0
  isl_set_free(context);
449
0
  return NULL;
450
367
}
451
452
/* Return an isl_union_map representation of the schedule. In particular,
453
 * return an isl_union_map corresponding to the subtree schedule of the child
454
 * of the root domain node.  That is, we do not intersect the domain
455
 * of the returned isl_union_map with the domain constraints.
456
 */
457
__isl_give isl_union_map *isl_schedule_get_map(__isl_keep isl_schedule *sched)
458
527
{
459
527
  enum isl_schedule_node_type type;
460
527
  isl_schedule_node *node;
461
527
  isl_union_map *umap;
462
527
463
527
  if (!sched)
464
0
    return NULL;
465
527
  type = isl_schedule_tree_get_type(sched->root);
466
527
  if (type != isl_schedule_node_domain)
467
527
    
isl_die0
(isl_schedule_get_ctx(sched), isl_error_internal,
468
527
      "root node not a domain node", return NULL);
469
527
470
527
  node = isl_schedule_get_root(sched);
471
527
  node = isl_schedule_node_child(node, 0);
472
527
  umap = isl_schedule_node_get_subtree_schedule_union_map(node);
473
527
  isl_schedule_node_free(node);
474
527
475
527
  return umap;
476
527
}
477
478
/* Insert a band node with partial schedule "partial" between the domain
479
 * root node of "schedule" and its single child.
480
 * Return a pointer to the updated schedule.
481
 *
482
 * If any of the nodes in the tree depend on the set of outer band nodes
483
 * then we refuse to insert the band node.
484
 */
485
__isl_give isl_schedule *isl_schedule_insert_partial_schedule(
486
  __isl_take isl_schedule *schedule,
487
  __isl_take isl_multi_union_pw_aff *partial)
488
560
{
489
560
  isl_schedule_node *node;
490
560
  int anchored;
491
560
492
560
  node = isl_schedule_get_root(schedule);
493
560
  isl_schedule_free(schedule);
494
560
  if (!node)
495
0
    goto error;
496
560
  if (isl_schedule_node_get_type(node) != isl_schedule_node_domain)
497
560
    
isl_die0
(isl_schedule_node_get_ctx(node), isl_error_internal,
498
560
      "root node not a domain node", goto error);
499
560
500
560
  node = isl_schedule_node_child(node, 0);
501
560
  anchored = isl_schedule_node_is_subtree_anchored(node);
502
560
  if (anchored < 0)
503
0
    goto error;
504
560
  if (anchored)
505
560
    
isl_die0
(isl_schedule_node_get_ctx(node), isl_error_invalid,
506
560
      "cannot insert band node in anchored subtree",
507
560
      goto error);
508
560
  node = isl_schedule_node_insert_partial_schedule(node, partial);
509
560
510
560
  schedule = isl_schedule_node_get_schedule(node);
511
560
  isl_schedule_node_free(node);
512
560
513
560
  return schedule;
514
0
error:
515
0
  isl_schedule_node_free(node);
516
0
  isl_multi_union_pw_aff_free(partial);
517
0
  return NULL;
518
560
}
519
520
/* Insert a context node with constraints "context" between the domain
521
 * root node of "schedule" and its single child.
522
 * Return a pointer to the updated schedule.
523
 */
524
__isl_give isl_schedule *isl_schedule_insert_context(
525
  __isl_take isl_schedule *schedule, __isl_take isl_set *context)
526
0
{
527
0
  isl_schedule_node *node;
528
0
529
0
  node = isl_schedule_get_root(schedule);
530
0
  isl_schedule_free(schedule);
531
0
  node = isl_schedule_node_child(node, 0);
532
0
  node = isl_schedule_node_insert_context(node, context);
533
0
  schedule = isl_schedule_node_get_schedule(node);
534
0
  isl_schedule_node_free(node);
535
0
536
0
  return schedule;
537
0
}
538
539
/* Insert a guard node with constraints "guard" between the domain
540
 * root node of "schedule" and its single child.
541
 * Return a pointer to the updated schedule.
542
 */
543
__isl_give isl_schedule *isl_schedule_insert_guard(
544
  __isl_take isl_schedule *schedule, __isl_take isl_set *guard)
545
0
{
546
0
  isl_schedule_node *node;
547
0
548
0
  node = isl_schedule_get_root(schedule);
549
0
  isl_schedule_free(schedule);
550
0
  node = isl_schedule_node_child(node, 0);
551
0
  node = isl_schedule_node_insert_guard(node, guard);
552
0
  schedule = isl_schedule_node_get_schedule(node);
553
0
  isl_schedule_node_free(node);
554
0
555
0
  return schedule;
556
0
}
557
558
/* Return a tree with as top-level node a filter corresponding to "filter" and
559
 * as child, the (single) child of "tree".
560
 * However, if this single child is of type "type", then the filter is inserted
561
 * in the children of this single child instead.
562
 */
563
static __isl_give isl_schedule_tree *insert_filter_in_child_of_type(
564
  __isl_take isl_schedule_tree *tree, __isl_take isl_union_set *filter,
565
  enum isl_schedule_node_type type)
566
746
{
567
746
  if (!isl_schedule_tree_has_children(tree)) {
568
430
    isl_schedule_tree_free(tree);
569
430
    return isl_schedule_tree_from_filter(filter);
570
430
  } else {
571
316
    tree = isl_schedule_tree_child(tree, 0);
572
316
  }
573
746
574
746
  
if (316
isl_schedule_tree_get_type(tree) == type316
)
575
182
    tree = isl_schedule_tree_children_insert_filter(tree, filter);
576
134
  else
577
134
    tree = isl_schedule_tree_insert_filter(tree, filter);
578
316
579
316
  return tree;
580
746
}
581
582
/* Construct a schedule that combines the schedules "schedule1" and "schedule2"
583
 * with a top-level node (underneath the domain node) of type "type",
584
 * either isl_schedule_node_sequence or isl_schedule_node_set.
585
 * The domains of the two schedules are assumed to be disjoint.
586
 *
587
 * The new schedule has as domain the union of the domains of the two
588
 * schedules.  The child of the domain node is a node of type "type"
589
 * with two filters corresponding to the domains of the input schedules.
590
 * If one (or both) of the top-level nodes of the two schedules is itself
591
 * of type "type", then the filter is pushed into the children of that
592
 * node and the sequence or set is flattened.
593
 */
594
__isl_give isl_schedule *isl_schedule_pair(enum isl_schedule_node_type type,
595
  __isl_take isl_schedule *schedule1, __isl_take isl_schedule *schedule2)
596
373
{
597
373
  int disjoint;
598
373
  isl_ctx *ctx;
599
373
  enum isl_schedule_node_type root_type;
600
373
  isl_schedule_tree *tree1, *tree2;
601
373
  isl_union_set *filter1, *filter2, *domain;
602
373
603
373
  if (!schedule1 || !schedule2)
604
0
    goto error;
605
373
606
373
  root_type = isl_schedule_tree_get_type(schedule1->root);
607
373
  if (root_type != isl_schedule_node_domain)
608
373
    
isl_die0
(isl_schedule_get_ctx(schedule1), isl_error_internal,
609
373
      "root node not a domain node", goto error);
610
373
  root_type = isl_schedule_tree_get_type(schedule2->root);
611
373
  if (root_type != isl_schedule_node_domain)
612
373
    
isl_die0
(isl_schedule_get_ctx(schedule1), isl_error_internal,
613
373
      "root node not a domain node", goto error);
614
373
615
373
  ctx = isl_schedule_get_ctx(schedule1);
616
373
  tree1 = isl_schedule_tree_copy(schedule1->root);
617
373
  filter1 = isl_schedule_tree_domain_get_domain(tree1);
618
373
  tree2 = isl_schedule_tree_copy(schedule2->root);
619
373
  filter2 = isl_schedule_tree_domain_get_domain(tree2);
620
373
621
373
  isl_schedule_free(schedule1);
622
373
  isl_schedule_free(schedule2);
623
373
624
373
  disjoint = isl_union_set_is_disjoint(filter1, filter2);
625
373
  if (disjoint < 0)
626
0
    filter1 = isl_union_set_free(filter1);
627
373
  if (!disjoint)
628
373
    
isl_die0
(ctx, isl_error_invalid,
629
373
      "schedule domains not disjoint",
630
373
      filter1 = isl_union_set_free(filter1));
631
373
632
373
  domain = isl_union_set_union(isl_union_set_copy(filter1),
633
373
            isl_union_set_copy(filter2));
634
373
  filter1 = isl_union_set_gist(filter1, isl_union_set_copy(domain));
635
373
  filter2 = isl_union_set_gist(filter2, isl_union_set_copy(domain));
636
373
637
373
  tree1 = insert_filter_in_child_of_type(tree1, filter1, type);
638
373
  tree2 = insert_filter_in_child_of_type(tree2, filter2, type);
639
373
640
373
  tree1 = isl_schedule_tree_from_pair(type, tree1, tree2);
641
373
  tree1 = isl_schedule_tree_insert_domain(tree1, domain);
642
373
643
373
  return isl_schedule_from_schedule_tree(ctx, tree1);
644
0
error:
645
0
  isl_schedule_free(schedule1);
646
0
  isl_schedule_free(schedule2);
647
0
  return NULL;
648
373
}
649
650
/* Construct a schedule that combines the schedules "schedule1" and "schedule2"
651
 * through a sequence node.
652
 * The domains of the input schedules are assumed to be disjoint.
653
 */
654
__isl_give isl_schedule *isl_schedule_sequence(
655
  __isl_take isl_schedule *schedule1, __isl_take isl_schedule *schedule2)
656
373
{
657
373
  return isl_schedule_pair(isl_schedule_node_sequence,
658
373
        schedule1, schedule2);
659
373
}
660
661
/* Construct a schedule that combines the schedules "schedule1" and "schedule2"
662
 * through a set node.
663
 * The domains of the input schedules are assumed to be disjoint.
664
 */
665
__isl_give isl_schedule *isl_schedule_set(
666
  __isl_take isl_schedule *schedule1, __isl_take isl_schedule *schedule2)
667
0
{
668
0
  return isl_schedule_pair(isl_schedule_node_set, schedule1, schedule2);
669
0
}
670
671
/* Print "schedule" to "p".
672
 */
673
__isl_give isl_printer *isl_printer_print_schedule(__isl_take isl_printer *p,
674
  __isl_keep isl_schedule *schedule)
675
0
{
676
0
  if (!schedule)
677
0
    return isl_printer_free(p);
678
0
679
0
  return isl_printer_print_schedule_tree(p, schedule->root);
680
0
}
681
682
#undef BASE
683
#define BASE schedule
684
#include <print_templ_yaml.c>