Bug Summary

File:tools/polly/lib/External/isl/isl_space.c
Warning:line 2459, column 8
Array access (via field 'ids') results in a null pointer dereference

Annotated Source Code

1/*
2 * Copyright 2008-2009 Katholieke Universiteit Leuven
3 * Copyright 2010 INRIA Saclay
4 * Copyright 2013-2014 Ecole Normale Superieure
5 *
6 * Use of this software is governed by the MIT license
7 *
8 * Written by Sven Verdoolaege, K.U.Leuven, Departement
9 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
10 * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
11 * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
12 * and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
13 */
14
15#include <stdlib.h>
16#include <string.h>
17#include <isl_space_private.h>
18#include <isl_id_private.h>
19#include <isl_reordering.h>
20
21isl_ctx *isl_space_get_ctx(__isl_keep isl_space *dim)
22{
23 return dim ? dim->ctx : NULL((void*)0);
24}
25
26__isl_give isl_space *isl_space_alloc(isl_ctx *ctx,
27 unsigned nparam, unsigned n_in, unsigned n_out)
28{
29 isl_space *dim;
30
31 dim = isl_alloc_type(ctx, struct isl_space)((struct isl_space *)isl_malloc_or_die(ctx, sizeof(struct isl_space
)));
32 if (!dim)
33 return NULL((void*)0);
34
35 dim->ctx = ctx;
36 isl_ctx_ref(ctx);
37 dim->ref = 1;
38 dim->nparam = nparam;
39 dim->n_in = n_in;
40 dim->n_out = n_out;
41
42 dim->tuple_id[0] = NULL((void*)0);
43 dim->tuple_id[1] = NULL((void*)0);
44
45 dim->nested[0] = NULL((void*)0);
46 dim->nested[1] = NULL((void*)0);
47
48 dim->n_id = 0;
49 dim->ids = NULL((void*)0);
50
51 return dim;
52}
53
54/* Mark the space as being that of a set, by setting the domain tuple
55 * to isl_id_none.
56 */
57static __isl_give isl_space *mark_as_set(__isl_take isl_space *space)
58{
59 space = isl_space_cow(space);
60 if (!space)
61 return NULL((void*)0);
62 space = isl_space_set_tuple_id(space, isl_dim_in, &isl_id_none);
63 return space;
64}
65
66/* Is the space that of a set?
67 */
68isl_bool isl_space_is_set(__isl_keep isl_space *space)
69{
70 if (!space)
71 return isl_bool_error;
72 if (space->n_in != 0 || space->nested[0])
73 return isl_bool_false;
74 if (space->tuple_id[0] != &isl_id_none)
75 return isl_bool_false;
76 return isl_bool_true;
77}
78
79/* Is the given space that of a map?
80 */
81isl_bool isl_space_is_map(__isl_keep isl_space *space)
82{
83 if (!space)
84 return isl_bool_error;
85 return space->tuple_id[0] != &isl_id_none &&
86 space->tuple_id[1] != &isl_id_none;
87}
88
89__isl_give isl_space *isl_space_set_alloc(isl_ctx *ctx,
90 unsigned nparam, unsigned dim)
91{
92 isl_space *space;
93 space = isl_space_alloc(ctx, nparam, 0, dim);
94 space = mark_as_set(space);
95 return space;
96}
97
98/* Mark the space as being that of a parameter domain, by setting
99 * both tuples to isl_id_none.
100 */
101static __isl_give isl_space *mark_as_params(isl_space *space)
102{
103 if (!space)
104 return NULL((void*)0);
105 space = isl_space_set_tuple_id(space, isl_dim_in, &isl_id_none);
106 space = isl_space_set_tuple_id(space, isl_dim_out, &isl_id_none);
107 return space;
108}
109
110/* Is the space that of a parameter domain?
111 */
112isl_bool isl_space_is_params(__isl_keep isl_space *space)
113{
114 if (!space)
115 return isl_bool_error;
116 if (space->n_in != 0 || space->nested[0] ||
117 space->n_out != 0 || space->nested[1])
118 return isl_bool_false;
119 if (space->tuple_id[0] != &isl_id_none)
120 return isl_bool_false;
121 if (space->tuple_id[1] != &isl_id_none)
122 return isl_bool_false;
123 return isl_bool_true;
124}
125
126/* Create a space for a parameter domain.
127 */
128__isl_give isl_space *isl_space_params_alloc(isl_ctx *ctx, unsigned nparam)
129{
130 isl_space *space;
131 space = isl_space_alloc(ctx, nparam, 0, 0);
132 space = mark_as_params(space);
133 return space;
134}
135
136static unsigned global_pos(__isl_keep isl_space *dim,
137 enum isl_dim_type type, unsigned pos)
138{
139 struct isl_ctx *ctx = dim->ctx;
140
141 switch (type) {
142 case isl_dim_param:
143 isl_assert(ctx, pos < dim->nparam,do { if (pos < dim->nparam) break; do { isl_handle_error
(ctx, isl_error_unknown, "Assertion \"" "pos < dim->nparam"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 144); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
144 return isl_space_dim(dim, isl_dim_all))do { if (pos < dim->nparam) break; do { isl_handle_error
(ctx, isl_error_unknown, "Assertion \"" "pos < dim->nparam"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 144); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0);
145 return pos;
146 case isl_dim_in:
147 isl_assert(ctx, pos < dim->n_in,do { if (pos < dim->n_in) break; do { isl_handle_error(
ctx, isl_error_unknown, "Assertion \"" "pos < dim->n_in"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 148); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
148 return isl_space_dim(dim, isl_dim_all))do { if (pos < dim->n_in) break; do { isl_handle_error(
ctx, isl_error_unknown, "Assertion \"" "pos < dim->n_in"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 148); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0);
149 return pos + dim->nparam;
150 case isl_dim_out:
151 isl_assert(ctx, pos < dim->n_out,do { if (pos < dim->n_out) break; do { isl_handle_error
(ctx, isl_error_unknown, "Assertion \"" "pos < dim->n_out"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 152); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0)
152 return isl_space_dim(dim, isl_dim_all))do { if (pos < dim->n_out) break; do { isl_handle_error
(ctx, isl_error_unknown, "Assertion \"" "pos < dim->n_out"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 152); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0);
153 return pos + dim->nparam + dim->n_in;
154 default:
155 isl_assert(ctx, 0, return isl_space_dim(dim, isl_dim_all))do { if (0) break; do { isl_handle_error(ctx, isl_error_unknown
, "Assertion \"" "0" "\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 155); return isl_space_dim(dim, isl_dim_all); } while (0); }
while (0);
156 }
157 return isl_space_dim(dim, isl_dim_all);
158}
159
160/* Extend length of ids array to the total number of dimensions.
161 */
162static __isl_give isl_space *extend_ids(__isl_take isl_space *dim)
163{
164 isl_id **ids;
165 int i;
166
167 if (isl_space_dim(dim, isl_dim_all) <= dim->n_id)
168 return dim;
169
170 if (!dim->ids) {
171 dim->ids = isl_calloc_array(dim->ctx,((isl_id * *)isl_calloc_or_die(dim->ctx, isl_space_dim(dim
, isl_dim_all), sizeof(isl_id *)))
172 isl_id *, isl_space_dim(dim, isl_dim_all))((isl_id * *)isl_calloc_or_die(dim->ctx, isl_space_dim(dim
, isl_dim_all), sizeof(isl_id *)));
173 if (!dim->ids)
174 goto error;
175 } else {
176 ids = isl_realloc_array(dim->ctx, dim->ids,((isl_id * *)isl_realloc_or_die(dim->ctx, dim->ids, (isl_space_dim
(dim, isl_dim_all))*sizeof(isl_id *)))
177 isl_id *, isl_space_dim(dim, isl_dim_all))((isl_id * *)isl_realloc_or_die(dim->ctx, dim->ids, (isl_space_dim
(dim, isl_dim_all))*sizeof(isl_id *)));
178 if (!ids)
179 goto error;
180 dim->ids = ids;
181 for (i = dim->n_id; i < isl_space_dim(dim, isl_dim_all); ++i)
182 dim->ids[i] = NULL((void*)0);
183 }
184
185 dim->n_id = isl_space_dim(dim, isl_dim_all);
186
187 return dim;
188error:
189 isl_space_free(dim);
190 return NULL((void*)0);
191}
192
193static __isl_give isl_space *set_id(__isl_take isl_space *dim,
194 enum isl_dim_type type, unsigned pos, __isl_take isl_id *id)
195{
196 dim = isl_space_cow(dim);
197
198 if (!dim)
199 goto error;
200
201 pos = global_pos(dim, type, pos);
202 if (pos == isl_space_dim(dim, isl_dim_all))
203 goto error;
204
205 if (pos >= dim->n_id) {
206 if (!id)
207 return dim;
208 dim = extend_ids(dim);
209 if (!dim)
210 goto error;
211 }
212
213 dim->ids[pos] = id;
214
215 return dim;
216error:
217 isl_id_free(id);
218 isl_space_free(dim);
219 return NULL((void*)0);
220}
221
222static __isl_keep isl_id *get_id(__isl_keep isl_space *dim,
223 enum isl_dim_type type, unsigned pos)
224{
225 if (!dim)
226 return NULL((void*)0);
227
228 pos = global_pos(dim, type, pos);
229 if (pos == isl_space_dim(dim, isl_dim_all))
230 return NULL((void*)0);
231 if (pos >= dim->n_id)
232 return NULL((void*)0);
233 return dim->ids[pos];
234}
235
236static unsigned offset(__isl_keep isl_space *dim, enum isl_dim_type type)
237{
238 switch (type) {
239 case isl_dim_param: return 0;
240 case isl_dim_in: return dim->nparam;
241 case isl_dim_out: return dim->nparam + dim->n_in;
242 default: return 0;
243 }
244}
245
246static unsigned n(__isl_keep isl_space *dim, enum isl_dim_type type)
247{
248 switch (type) {
249 case isl_dim_param: return dim->nparam;
250 case isl_dim_in: return dim->n_in;
251 case isl_dim_out: return dim->n_out;
252 case isl_dim_all: return dim->nparam + dim->n_in + dim->n_out;
253 default: return 0;
254 }
255}
256
257unsigned isl_space_dim(__isl_keep isl_space *dim, enum isl_dim_type type)
258{
259 if (!dim)
260 return 0;
261 return n(dim, type);
262}
263
264unsigned isl_space_offset(__isl_keep isl_space *dim, enum isl_dim_type type)
265{
266 if (!dim)
267 return 0;
268 return offset(dim, type);
269}
270
271static __isl_give isl_space *copy_ids(__isl_take isl_space *dst,
272 enum isl_dim_type dst_type, unsigned offset, __isl_keep isl_space *src,
273 enum isl_dim_type src_type)
274{
275 int i;
276 isl_id *id;
277
278 if (!dst)
279 return NULL((void*)0);
280
281 for (i = 0; i < n(src, src_type); ++i) {
282 id = get_id(src, src_type, i);
283 if (!id)
284 continue;
285 dst = set_id(dst, dst_type, offset + i, isl_id_copy(id));
286 if (!dst)
287 return NULL((void*)0);
288 }
289 return dst;
290}
291
292__isl_take isl_space *isl_space_dup(__isl_keep isl_space *dim)
293{
294 isl_space *dup;
295 if (!dim)
296 return NULL((void*)0);
297 dup = isl_space_alloc(dim->ctx, dim->nparam, dim->n_in, dim->n_out);
298 if (!dup)
299 return NULL((void*)0);
300 if (dim->tuple_id[0] &&
301 !(dup->tuple_id[0] = isl_id_copy(dim->tuple_id[0])))
302 goto error;
303 if (dim->tuple_id[1] &&
304 !(dup->tuple_id[1] = isl_id_copy(dim->tuple_id[1])))
305 goto error;
306 if (dim->nested[0] && !(dup->nested[0] = isl_space_copy(dim->nested[0])))
307 goto error;
308 if (dim->nested[1] && !(dup->nested[1] = isl_space_copy(dim->nested[1])))
309 goto error;
310 if (!dim->ids)
311 return dup;
312 dup = copy_ids(dup, isl_dim_param, 0, dim, isl_dim_param);
313 dup = copy_ids(dup, isl_dim_in, 0, dim, isl_dim_in);
314 dup = copy_ids(dup, isl_dim_out, 0, dim, isl_dim_out);
315 return dup;
316error:
317 isl_space_free(dup);
318 return NULL((void*)0);
319}
320
321__isl_give isl_space *isl_space_cow(__isl_take isl_space *dim)
322{
323 if (!dim)
324 return NULL((void*)0);
325
326 if (dim->ref == 1)
327 return dim;
328 dim->ref--;
329 return isl_space_dup(dim);
330}
331
332__isl_give isl_space *isl_space_copy(__isl_keep isl_space *dim)
333{
334 if (!dim)
335 return NULL((void*)0);
336
337 dim->ref++;
338 return dim;
339}
340
341__isl_null isl_space *isl_space_free(__isl_take isl_space *space)
342{
343 int i;
344
345 if (!space)
346 return NULL((void*)0);
347
348 if (--space->ref > 0)
349 return NULL((void*)0);
350
351 isl_id_free(space->tuple_id[0]);
352 isl_id_free(space->tuple_id[1]);
353
354 isl_space_free(space->nested[0]);
355 isl_space_free(space->nested[1]);
356
357 for (i = 0; i < space->n_id; ++i)
358 isl_id_free(space->ids[i]);
359 free(space->ids);
360 isl_ctx_deref(space->ctx);
361
362 free(space);
363
364 return NULL((void*)0);
365}
366
367/* Check if "s" is a valid dimension or tuple name.
368 * We currently only forbid names that look like a number.
369 *
370 * s is assumed to be non-NULL.
371 */
372static int name_ok(isl_ctx *ctx, const char *s)
373{
374 char *p;
375 long dummy;
376
377 dummy = strtol(s, &p, 0);
378 if (p != s)
379 isl_die(ctx, isl_error_invalid, "name looks like a number",do { isl_handle_error(ctx, isl_error_invalid, "name looks like a number"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 380); return 0; } while (0)
380 return 0)do { isl_handle_error(ctx, isl_error_invalid, "name looks like a number"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 380); return 0; } while (0);
381
382 return 1;
383}
384
385/* Is it possible for the given dimension type to have a tuple id?
386 */
387static int space_can_have_id(__isl_keep isl_space *space,
388 enum isl_dim_type type)
389{
390 if (!space)
391 return 0;
392 if (isl_space_is_params(space))
393 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "parameter spaces don't have tuple ids"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 394); return 0; } while (0)
394 "parameter spaces don't have tuple ids", return 0)do { isl_handle_error(space->ctx, isl_error_invalid, "parameter spaces don't have tuple ids"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 394); return 0; } while (0);
395 if (isl_space_is_set(space) && type != isl_dim_set)
396 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "set spaces can only have a set id"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 397); return 0; } while (0)
397 "set spaces can only have a set id", return 0)do { isl_handle_error(space->ctx, isl_error_invalid, "set spaces can only have a set id"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 397); return 0; } while (0);
398 if (type != isl_dim_in && type != isl_dim_out)
399 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "only input, output and set tuples can have ids"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 401); return 0; } while (0)
400 "only input, output and set tuples can have ids",do { isl_handle_error(space->ctx, isl_error_invalid, "only input, output and set tuples can have ids"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 401); return 0; } while (0)
401 return 0)do { isl_handle_error(space->ctx, isl_error_invalid, "only input, output and set tuples can have ids"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 401); return 0; } while (0);
402
403 return 1;
404}
405
406/* Does the tuple have an id?
407 */
408isl_bool isl_space_has_tuple_id(__isl_keep isl_space *dim,
409 enum isl_dim_type type)
410{
411 if (!space_can_have_id(dim, type))
412 return isl_bool_error;
413 return dim->tuple_id[type - isl_dim_in] != NULL((void*)0);
414}
415
416__isl_give isl_id *isl_space_get_tuple_id(__isl_keep isl_space *dim,
417 enum isl_dim_type type)
418{
419 int has_id;
420
421 if (!dim)
422 return NULL((void*)0);
423 has_id = isl_space_has_tuple_id(dim, type);
424 if (has_id < 0)
425 return NULL((void*)0);
426 if (!has_id)
427 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "tuple has no id"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 428); return ((void*)0); } while (0)
428 "tuple has no id", return NULL)do { isl_handle_error(dim->ctx, isl_error_invalid, "tuple has no id"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 428); return ((void*)0); } while (0);
429 return isl_id_copy(dim->tuple_id[type - isl_dim_in]);
430}
431
432__isl_give isl_space *isl_space_set_tuple_id(__isl_take isl_space *dim,
433 enum isl_dim_type type, __isl_take isl_id *id)
434{
435 dim = isl_space_cow(dim);
436 if (!dim || !id)
437 goto error;
438 if (type != isl_dim_in && type != isl_dim_out)
439 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 441); goto error; } while (0)
440 "only input, output and set tuples can have names",do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 441); goto error; } while (0)
441 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 441); goto error; } while (0);
442
443 isl_id_free(dim->tuple_id[type - isl_dim_in]);
444 dim->tuple_id[type - isl_dim_in] = id;
445
446 return dim;
447error:
448 isl_id_free(id);
449 isl_space_free(dim);
450 return NULL((void*)0);
451}
452
453__isl_give isl_space *isl_space_reset_tuple_id(__isl_take isl_space *dim,
454 enum isl_dim_type type)
455{
456 dim = isl_space_cow(dim);
457 if (!dim)
458 return NULL((void*)0);
459 if (type != isl_dim_in && type != isl_dim_out)
460 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 462); goto error; } while (0)
461 "only input, output and set tuples can have names",do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 462); goto error; } while (0)
462 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "only input, output and set tuples can have names"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 462); goto error; } while (0);
463
464 isl_id_free(dim->tuple_id[type - isl_dim_in]);
465 dim->tuple_id[type - isl_dim_in] = NULL((void*)0);
466
467 return dim;
468error:
469 isl_space_free(dim);
470 return NULL((void*)0);
471}
472
473/* Set the id of the given dimension of "space" to "id".
474 * If the dimension already has an id, then it is replaced.
475 * If the dimension is a parameter, then we need to change it
476 * in the nested spaces (if any) as well.
477 */
478__isl_give isl_space *isl_space_set_dim_id(__isl_take isl_space *space,
479 enum isl_dim_type type, unsigned pos, __isl_take isl_id *id)
480{
481 space = isl_space_cow(space);
482 if (!space || !id)
483 goto error;
484
485 if (type == isl_dim_param) {
486 int i;
487
488 for (i = 0; i < 2; ++i) {
489 if (!space->nested[i])
490 continue;
491 space->nested[i] =
492 isl_space_set_dim_id(space->nested[i],
493 type, pos, isl_id_copy(id));
494 if (!space->nested[i])
495 goto error;
496 }
497 }
498
499 isl_id_free(get_id(space, type, pos));
500 return set_id(space, type, pos, id);
501error:
502 isl_id_free(id);
503 isl_space_free(space);
504 return NULL((void*)0);
505}
506
507/* Reset the id of the given dimension of "space".
508 * If the dimension already has an id, then it is removed.
509 * If the dimension is a parameter, then we need to reset it
510 * in the nested spaces (if any) as well.
511 */
512__isl_give isl_space *isl_space_reset_dim_id(__isl_take isl_space *space,
513 enum isl_dim_type type, unsigned pos)
514{
515 space = isl_space_cow(space);
516 if (!space)
517 goto error;
518
519 if (type == isl_dim_param) {
520 int i;
521
522 for (i = 0; i < 2; ++i) {
523 if (!space->nested[i])
524 continue;
525 space->nested[i] =
526 isl_space_reset_dim_id(space->nested[i],
527 type, pos);
528 if (!space->nested[i])
529 goto error;
530 }
531 }
532
533 isl_id_free(get_id(space, type, pos));
534 return set_id(space, type, pos, NULL((void*)0));
535error:
536 isl_space_free(space);
537 return NULL((void*)0);
538}
539
540isl_bool isl_space_has_dim_id(__isl_keep isl_space *dim,
541 enum isl_dim_type type, unsigned pos)
542{
543 if (!dim)
544 return isl_bool_error;
545 return get_id(dim, type, pos) != NULL((void*)0);
546}
547
548__isl_give isl_id *isl_space_get_dim_id(__isl_keep isl_space *dim,
549 enum isl_dim_type type, unsigned pos)
550{
551 if (!dim)
552 return NULL((void*)0);
553 if (!get_id(dim, type, pos))
554 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "dim has no id"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 555); return ((void*)0); } while (0)
555 "dim has no id", return NULL)do { isl_handle_error(dim->ctx, isl_error_invalid, "dim has no id"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 555); return ((void*)0); } while (0);
556 return isl_id_copy(get_id(dim, type, pos));
557}
558
559__isl_give isl_space *isl_space_set_tuple_name(__isl_take isl_space *dim,
560 enum isl_dim_type type, const char *s)
561{
562 isl_id *id;
563
564 if (!dim)
565 return NULL((void*)0);
566
567 if (!s)
568 return isl_space_reset_tuple_id(dim, type);
569
570 if (!name_ok(dim->ctx, s))
571 goto error;
572
573 id = isl_id_alloc(dim->ctx, s, NULL((void*)0));
574 return isl_space_set_tuple_id(dim, type, id);
575error:
576 isl_space_free(dim);
577 return NULL((void*)0);
578}
579
580/* Does the tuple have a name?
581 */
582isl_bool isl_space_has_tuple_name(__isl_keep isl_space *space,
583 enum isl_dim_type type)
584{
585 isl_id *id;
586
587 if (!space_can_have_id(space, type))
588 return isl_bool_error;
589 id = space->tuple_id[type - isl_dim_in];
590 return id && id->name;
591}
592
593__isl_keep const char *isl_space_get_tuple_name(__isl_keep isl_space *dim,
594 enum isl_dim_type type)
595{
596 isl_id *id;
597 if (!dim)
598 return NULL((void*)0);
599 if (type != isl_dim_in && type != isl_dim_out)
600 return NULL((void*)0);
601 id = dim->tuple_id[type - isl_dim_in];
602 return id ? id->name : NULL((void*)0);
603}
604
605__isl_give isl_space *isl_space_set_dim_name(__isl_take isl_space *dim,
606 enum isl_dim_type type, unsigned pos,
607 const char *s)
608{
609 isl_id *id;
610
611 if (!dim)
612 return NULL((void*)0);
613 if (!s)
614 return isl_space_reset_dim_id(dim, type, pos);
615 if (!name_ok(dim->ctx, s))
616 goto error;
617 id = isl_id_alloc(dim->ctx, s, NULL((void*)0));
618 return isl_space_set_dim_id(dim, type, pos, id);
619error:
620 isl_space_free(dim);
621 return NULL((void*)0);
622}
623
624/* Does the given dimension have a name?
625 */
626isl_bool isl_space_has_dim_name(__isl_keep isl_space *space,
627 enum isl_dim_type type, unsigned pos)
628{
629 isl_id *id;
630
631 if (!space)
632 return isl_bool_error;
633 id = get_id(space, type, pos);
634 return id && id->name;
635}
636
637__isl_keep const char *isl_space_get_dim_name(__isl_keep isl_space *dim,
638 enum isl_dim_type type, unsigned pos)
639{
640 isl_id *id = get_id(dim, type, pos);
641 return id ? id->name : NULL((void*)0);
642}
643
644int isl_space_find_dim_by_id(__isl_keep isl_space *dim, enum isl_dim_type type,
645 __isl_keep isl_id *id)
646{
647 int i;
648 int offset;
649 int n;
650
651 if (!dim || !id)
652 return -1;
653
654 offset = isl_space_offset(dim, type);
655 n = isl_space_dim(dim, type);
656 for (i = 0; i < n && offset + i < dim->n_id; ++i)
657 if (dim->ids[offset + i] == id)
658 return i;
659
660 return -1;
661}
662
663int isl_space_find_dim_by_name(__isl_keep isl_space *space,
664 enum isl_dim_type type, const char *name)
665{
666 int i;
667 int offset;
668 int n;
669
670 if (!space || !name)
671 return -1;
672
673 offset = isl_space_offset(space, type);
674 n = isl_space_dim(space, type);
675 for (i = 0; i < n && offset + i < space->n_id; ++i) {
676 isl_id *id = get_id(space, type, i);
677 if (id && id->name && !strcmp(id->name, name)__extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p
(id->name) && __builtin_constant_p (name) &&
(__s1_len = __builtin_strlen (id->name), __s2_len = __builtin_strlen
(name), (!((size_t)(const void *)((id->name) + 1) - (size_t
)(const void *)(id->name) == 1) || __s1_len >= 4) &&
(!((size_t)(const void *)((name) + 1) - (size_t)(const void *
)(name) == 1) || __s2_len >= 4)) ? __builtin_strcmp (id->
name, name) : (__builtin_constant_p (id->name) && (
(size_t)(const void *)((id->name) + 1) - (size_t)(const void
*)(id->name) == 1) && (__s1_len = __builtin_strlen
(id->name), __s1_len < 4) ? (__builtin_constant_p (name
) && ((size_t)(const void *)((name) + 1) - (size_t)(const
void *)(name) == 1) ? __builtin_strcmp (id->name, name) :
(__extension__ ({ const unsigned char *__s2 = (const unsigned
char *) (const char *) (name); int __result = (((const unsigned
char *) (const char *) (id->name))[0] - __s2[0]); if (__s1_len
> 0 && __result == 0) { __result = (((const unsigned
char *) (const char *) (id->name))[1] - __s2[1]); if (__s1_len
> 1 && __result == 0) { __result = (((const unsigned
char *) (const char *) (id->name))[2] - __s2[2]); if (__s1_len
> 2 && __result == 0) __result = (((const unsigned
char *) (const char *) (id->name))[3] - __s2[3]); } } __result
; }))) : (__builtin_constant_p (name) && ((size_t)(const
void *)((name) + 1) - (size_t)(const void *)(name) == 1) &&
(__s2_len = __builtin_strlen (name), __s2_len < 4) ? (__builtin_constant_p
(id->name) && ((size_t)(const void *)((id->name
) + 1) - (size_t)(const void *)(id->name) == 1) ? __builtin_strcmp
(id->name, name) : -(__extension__ ({ const unsigned char
*__s2 = (const unsigned char *) (const char *) (id->name)
; int __result = (((const unsigned char *) (const char *) (name
))[0] - __s2[0]); if (__s2_len > 0 && __result == 0
) { __result = (((const unsigned char *) (const char *) (name
))[1] - __s2[1]); if (__s2_len > 1 && __result == 0
) { __result = (((const unsigned char *) (const char *) (name
))[2] - __s2[2]); if (__s2_len > 2 && __result == 0
) __result = (((const unsigned char *) (const char *) (name))
[3] - __s2[3]); } } __result; }))) : __builtin_strcmp (id->
name, name)))); }))
678 return i;
679 }
680
681 return -1;
682}
683
684/* Reset the user pointer on all identifiers of parameters and tuples
685 * of "space".
686 */
687__isl_give isl_space *isl_space_reset_user(__isl_take isl_space *space)
688{
689 int i;
690 isl_ctx *ctx;
691 isl_id *id;
692 const char *name;
693
694 if (!space)
695 return NULL((void*)0);
696
697 ctx = isl_space_get_ctx(space);
698
699 for (i = 0; i < space->nparam && i < space->n_id; ++i) {
700 if (!isl_id_get_user(space->ids[i]))
701 continue;
702 space = isl_space_cow(space);
703 if (!space)
704 return NULL((void*)0);
705 name = isl_id_get_name(space->ids[i]);
706 id = isl_id_alloc(ctx, name, NULL((void*)0));
707 isl_id_free(space->ids[i]);
708 space->ids[i] = id;
709 if (!id)
710 return isl_space_free(space);
711 }
712
713 for (i = 0; i < 2; ++i) {
714 if (!space->tuple_id[i])
715 continue;
716 if (!isl_id_get_user(space->tuple_id[i]))
717 continue;
718 space = isl_space_cow(space);
719 if (!space)
720 return NULL((void*)0);
721 name = isl_id_get_name(space->tuple_id[i]);
722 id = isl_id_alloc(ctx, name, NULL((void*)0));
723 isl_id_free(space->tuple_id[i]);
724 space->tuple_id[i] = id;
725 if (!id)
726 return isl_space_free(space);
727 }
728
729 for (i = 0; i < 2; ++i) {
730 if (!space->nested[i])
731 continue;
732 space = isl_space_cow(space);
733 if (!space)
734 return NULL((void*)0);
735 space->nested[i] = isl_space_reset_user(space->nested[i]);
736 if (!space->nested[i])
737 return isl_space_free(space);
738 }
739
740 return space;
741}
742
743static __isl_keep isl_id *tuple_id(__isl_keep isl_space *dim,
744 enum isl_dim_type type)
745{
746 if (!dim)
747 return NULL((void*)0);
748 if (type == isl_dim_in)
749 return dim->tuple_id[0];
750 if (type == isl_dim_out)
751 return dim->tuple_id[1];
752 return NULL((void*)0);
753}
754
755static __isl_keep isl_space *nested(__isl_keep isl_space *dim,
756 enum isl_dim_type type)
757{
758 if (!dim)
759 return NULL((void*)0);
760 if (type == isl_dim_in)
761 return dim->nested[0];
762 if (type == isl_dim_out)
763 return dim->nested[1];
764 return NULL((void*)0);
765}
766
767/* Are the two spaces the same, apart from positions and names of parameters?
768 */
769isl_bool isl_space_has_equal_tuples(__isl_keep isl_space *space1,
770 __isl_keep isl_space *space2)
771{
772 if (!space1 || !space2)
773 return isl_bool_error;
774 if (space1 == space2)
775 return isl_bool_true;
776 return isl_space_tuple_is_equal(space1, isl_dim_in,
777 space2, isl_dim_in) &&
778 isl_space_tuple_is_equal(space1, isl_dim_out,
779 space2, isl_dim_out);
780}
781
782/* Check if the tuple of type "type1" of "space1" is the same as
783 * the tuple of type "type2" of "space2".
784 *
785 * That is, check if the tuples have the same identifier, the same dimension
786 * and the same internal structure.
787 * The identifiers of the dimensions inside the tuples do not affect the result.
788 *
789 * Note that this function only checks the tuples themselves.
790 * If nested tuples are involved, then we need to be careful not
791 * to have result affected by possibly differing parameters
792 * in those nested tuples.
793 */
794isl_bool isl_space_tuple_is_equal(__isl_keep isl_space *space1,
795 enum isl_dim_type type1, __isl_keep isl_space *space2,
796 enum isl_dim_type type2)
797{
798 isl_id *id1, *id2;
799 isl_space *nested1, *nested2;
800
801 if (!space1 || !space2)
802 return isl_bool_error;
803
804 if (space1 == space2 && type1 == type2)
805 return isl_bool_true;
806
807 if (n(space1, type1) != n(space2, type2))
808 return isl_bool_false;
809 id1 = tuple_id(space1, type1);
810 id2 = tuple_id(space2, type2);
811 if (!id1 ^ !id2)
812 return isl_bool_false;
813 if (id1 && id1 != id2)
814 return isl_bool_false;
815 nested1 = nested(space1, type1);
816 nested2 = nested(space2, type2);
817 if (!nested1 ^ !nested2)
818 return isl_bool_false;
819 if (nested1 && !isl_space_has_equal_tuples(nested1, nested2))
820 return isl_bool_false;
821 return isl_bool_true;
822}
823
824/* This is the old, undocumented, name for isl_space_tuple_is_equal.
825 * It will be removed at some point.
826 */
827int isl_space_tuple_match(__isl_keep isl_space *space1, enum isl_dim_type type1,
828 __isl_keep isl_space *space2, enum isl_dim_type type2)
829{
830 return isl_space_tuple_is_equal(space1, type1, space2, type2);
831}
832
833static isl_bool match(__isl_keep isl_space *space1, enum isl_dim_type type1,
834 __isl_keep isl_space *space2, enum isl_dim_type type2)
835{
836 int i;
837
838 if (space1 == space2 && type1 == type2)
839 return isl_bool_true;
840
841 if (!isl_space_tuple_is_equal(space1, type1, space2, type2))
842 return isl_bool_false;
843
844 if (!space1->ids && !space2->ids)
845 return isl_bool_true;
846
847 for (i = 0; i < n(space1, type1); ++i) {
848 if (get_id(space1, type1, i) != get_id(space2, type2, i))
849 return isl_bool_false;
850 }
851 return isl_bool_true;
852}
853
854/* Do "space1" and "space2" have the same parameters?
855 */
856isl_bool isl_space_has_equal_params(__isl_keep isl_space *space1,
857 __isl_keep isl_space *space2)
858{
859 if (!space1 || !space2)
860 return isl_bool_error;
861
862 return match(space1, isl_dim_param, space2, isl_dim_param);
863}
864
865/* Do "space1" and "space2" have the same identifiers for all
866 * the tuple variables?
867 */
868isl_bool isl_space_has_equal_ids(__isl_keep isl_space *space1,
869 __isl_keep isl_space *space2)
870{
871 isl_bool equal;
872
873 if (!space1 || !space2)
874 return isl_bool_error;
875
876 equal = match(space1, isl_dim_in, space2, isl_dim_in);
877 if (equal < 0 || !equal)
878 return equal;
879 return match(space1, isl_dim_out, space2, isl_dim_out);
880}
881
882isl_bool isl_space_match(__isl_keep isl_space *space1, enum isl_dim_type type1,
883 __isl_keep isl_space *space2, enum isl_dim_type type2)
884{
885 if (!space1 || !space2)
886 return isl_bool_error;
887
888 return match(space1, type1, space2, type2);
889}
890
891static void get_ids(__isl_keep isl_space *dim, enum isl_dim_type type,
892 unsigned first, unsigned n, __isl_keep isl_id **ids)
893{
894 int i;
895
896 for (i = 0; i < n ; ++i)
897 ids[i] = get_id(dim, type, first + i);
898}
899
900static __isl_give isl_space *space_extend(__isl_take isl_space *space,
901 unsigned nparam, unsigned n_in, unsigned n_out)
902{
903 isl_id **ids = NULL((void*)0);
904
905 if (!space)
7
←
Taking false branch
→
906 return NULL((void*)0);
907 if (space->nparam == nparam &&
8
←
Taking false branch
→
908 space->n_in == n_in && space->n_out == n_out)
909 return space;
910
911 isl_assert(space->ctx, space->nparam <= nparam, goto error)do { if (space->nparam <= nparam) break; do { isl_handle_error
(space->ctx, isl_error_unknown, "Assertion \"" "space->nparam <= nparam"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 911); goto error; } while (0); } while (0);
912 isl_assert(space->ctx, space->n_in <= n_in, goto error)do { if (space->n_in <= n_in) break; do { isl_handle_error
(space->ctx, isl_error_unknown, "Assertion \"" "space->n_in <= n_in"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 912); goto error; } while (0); } while (0);
913 isl_assert(space->ctx, space->n_out <= n_out, goto error)do { if (space->n_out <= n_out) break; do { isl_handle_error
(space->ctx, isl_error_unknown, "Assertion \"" "space->n_out <= n_out"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 913); goto error; } while (0); } while (0);
914
915 space = isl_space_cow(space);
916 if (!space)
9
←
Assuming 'space' is non-null
→
10
←
Taking false branch
→
917 goto error;
918
919 if (space->ids) {
11
←
Assuming the condition is false
→
12
←
Taking false branch
→
920 unsigned n;
921 n = nparam + n_in + n_out;
922 if (n < nparam || n < n_in || n < n_out)
923 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "overflow in total number of dimensions", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 925); goto error; } while (0)
924 "overflow in total number of dimensions",do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "overflow in total number of dimensions", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 925); goto error; } while (0)
925 goto error)do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "overflow in total number of dimensions", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 925); goto error; } while (0);
926 ids = isl_calloc_array(space->ctx, isl_id *, n)((isl_id * *)isl_calloc_or_die(space->ctx, n, sizeof(isl_id
*)));
927 if (!ids)
928 goto error;
929 get_ids(space, isl_dim_param, 0, space->nparam, ids);
930 get_ids(space, isl_dim_in, 0, space->n_in, ids + nparam);
931 get_ids(space, isl_dim_out, 0, space->n_out,
932 ids + nparam + n_in);
933 free(space->ids);
934 space->ids = ids;
935 space->n_id = nparam + n_in + n_out;
936 }
937 space->nparam = nparam;
938 space->n_in = n_in;
939 space->n_out = n_out;
940
941 return space;
942error:
943 free(ids);
944 isl_space_free(space);
945 return NULL((void*)0);
946}
947
948__isl_give isl_space *isl_space_extend(__isl_take isl_space *space,
949 unsigned nparam, unsigned n_in, unsigned n_out)
950{
951 return space_extend(space, nparam, n_in, n_out);
952}
953
954__isl_give isl_space *isl_space_add_dims(__isl_take isl_space *space,
955 enum isl_dim_type type, unsigned n)
956{
957 space = isl_space_reset(space, type);
958 if (!space)
4
←
Taking false branch
→
959 return NULL((void*)0);
960 switch (type) {
5
←
Control jumps to 'case isl_dim_out:' at line 976
→
961 case isl_dim_param:
962 space = space_extend(space,
963 space->nparam + n, space->n_in, space->n_out);
964 if (space && space->nested[0] &&
965 !(space->nested[0] = isl_space_add_dims(space->nested[0],
966 isl_dim_param, n)))
967 goto error;
968 if (space && space->nested[1] &&
969 !(space->nested[1] = isl_space_add_dims(space->nested[1],
970 isl_dim_param, n)))
971 goto error;
972 return space;
973 case isl_dim_in:
974 return space_extend(space,
975 space->nparam, space->n_in + n, space->n_out);
976 case isl_dim_out:
977 return space_extend(space,
6
←
Calling 'space_extend'
→
13
←
Returning from 'space_extend'
→
978 space->nparam, space->n_in, space->n_out + n);
979 default:
980 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "cannot add dimensions of specified type"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 981); goto error; } while (0)
981 "cannot add dimensions of specified type", goto error)do { isl_handle_error(space->ctx, isl_error_invalid, "cannot add dimensions of specified type"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 981); goto error; } while (0);
982 }
983error:
984 isl_space_free(space);
985 return NULL((void*)0);
986}
987
988static int valid_dim_type(enum isl_dim_type type)
989{
990 switch (type) {
991 case isl_dim_param:
992 case isl_dim_in:
993 case isl_dim_out:
994 return 1;
995 default:
996 return 0;
997 }
998}
999
1000/* Insert "n" dimensions of type "type" at position "pos".
1001 * If we are inserting parameters, then they are also inserted in
1002 * any nested spaces.
1003 */
1004__isl_give isl_space *isl_space_insert_dims(__isl_take isl_space *dim,
1005 enum isl_dim_type type, unsigned pos, unsigned n)
1006{
1007 isl_id **ids = NULL((void*)0);
1008
1009 if (!dim)
1010 return NULL((void*)0);
1011 if (n == 0)
1012 return isl_space_reset(dim, type);
1013
1014 if (!valid_dim_type(type))
1015 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot insert dimensions of specified type"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1017); goto error; } while (0)
1016 "cannot insert dimensions of specified type",do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot insert dimensions of specified type"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1017); goto error; } while (0)
1017 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot insert dimensions of specified type"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1017); goto error; } while (0);
1018
1019 isl_assert(dim->ctx, pos <= isl_space_dim(dim, type), goto error)do { if (pos <= isl_space_dim(dim, type)) break; do { isl_handle_error
(dim->ctx, isl_error_unknown, "Assertion \"" "pos <= isl_space_dim(dim, type)"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1019); goto error; } while (0); } while (0);
1020
1021 dim = isl_space_cow(dim);
1022 if (!dim)
1023 return NULL((void*)0);
1024
1025 if (dim->ids) {
1026 enum isl_dim_type t, o = isl_dim_param;
1027 int off;
1028 int s[3];
1029 ids = isl_calloc_array(dim->ctx, isl_id *,((isl_id * *)isl_calloc_or_die(dim->ctx, dim->nparam + dim
->n_in + dim->n_out + n, sizeof(isl_id *)))
1030 dim->nparam + dim->n_in + dim->n_out + n)((isl_id * *)isl_calloc_or_die(dim->ctx, dim->nparam + dim
->n_in + dim->n_out + n, sizeof(isl_id *)));
1031 if (!ids)
1032 goto error;
1033 off = 0;
1034 s[isl_dim_param - o] = dim->nparam;
1035 s[isl_dim_in - o] = dim->n_in;
1036 s[isl_dim_out - o] = dim->n_out;
1037 for (t = isl_dim_param; t <= isl_dim_out; ++t) {
1038 if (t != type) {
1039 get_ids(dim, t, 0, s[t - o], ids + off);
1040 off += s[t - o];
1041 } else {
1042 get_ids(dim, t, 0, pos, ids + off);
1043 off += pos + n;
1044 get_ids(dim, t, pos, s[t - o] - pos, ids + off);
1045 off += s[t - o] - pos;
1046 }
1047 }
1048 free(dim->ids);
1049 dim->ids = ids;
1050 dim->n_id = dim->nparam + dim->n_in + dim->n_out + n;
1051 }
1052 switch (type) {
1053 case isl_dim_param: dim->nparam += n; break;
1054 case isl_dim_in: dim->n_in += n; break;
1055 case isl_dim_out: dim->n_out += n; break;
1056 default: ;
1057 }
1058 dim = isl_space_reset(dim, type);
1059
1060 if (type == isl_dim_param) {
1061 if (dim && dim->nested[0] &&
1062 !(dim->nested[0] = isl_space_insert_dims(dim->nested[0],
1063 isl_dim_param, pos, n)))
1064 goto error;
1065 if (dim && dim->nested[1] &&
1066 !(dim->nested[1] = isl_space_insert_dims(dim->nested[1],
1067 isl_dim_param, pos, n)))
1068 goto error;
1069 }
1070
1071 return dim;
1072error:
1073 isl_space_free(dim);
1074 return NULL((void*)0);
1075}
1076
1077__isl_give isl_space *isl_space_move_dims(__isl_take isl_space *space,
1078 enum isl_dim_type dst_type, unsigned dst_pos,
1079 enum isl_dim_type src_type, unsigned src_pos, unsigned n)
1080{
1081 int i;
1082
1083 space = isl_space_reset(space, src_type);
1084 space = isl_space_reset(space, dst_type);
1085 if (!space)
1086 return NULL((void*)0);
1087 if (n == 0)
1088 return space;
1089
1090 isl_assert(space->ctx, src_pos + n <= isl_space_dim(space, src_type),do { if (src_pos + n <= isl_space_dim(space, src_type)) break
; do { isl_handle_error(space->ctx, isl_error_unknown, "Assertion \""
"src_pos + n <= isl_space_dim(space, src_type)" "\" failed"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1091); goto error; } while (0); } while (0)
1091 goto error)do { if (src_pos + n <= isl_space_dim(space, src_type)) break
; do { isl_handle_error(space->ctx, isl_error_unknown, "Assertion \""
"src_pos + n <= isl_space_dim(space, src_type)" "\" failed"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1091); goto error; } while (0); } while (0);
1092
1093 if (dst_type == src_type && dst_pos == src_pos)
1094 return space;
1095
1096 isl_assert(space->ctx, dst_type != src_type, goto error)do { if (dst_type != src_type) break; do { isl_handle_error(space
->ctx, isl_error_unknown, "Assertion \"" "dst_type != src_type"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1096); goto error; } while (0); } while (0);
1097
1098 space = isl_space_cow(space);
1099 if (!space)
1100 return NULL((void*)0);
1101
1102 if (space->ids) {
1103 isl_id **ids;
1104 enum isl_dim_type t, o = isl_dim_param;
1105 int off;
1106 int s[3];
1107 ids = isl_calloc_array(space->ctx, isl_id *,((isl_id * *)isl_calloc_or_die(space->ctx, space->nparam
+ space->n_in + space->n_out, sizeof(isl_id *)))
1108 space->nparam + space->n_in + space->n_out)((isl_id * *)isl_calloc_or_die(space->ctx, space->nparam
+ space->n_in + space->n_out, sizeof(isl_id *)));
1109 if (!ids)
1110 goto error;
1111 off = 0;
1112 s[isl_dim_param - o] = space->nparam;
1113 s[isl_dim_in - o] = space->n_in;
1114 s[isl_dim_out - o] = space->n_out;
1115 for (t = isl_dim_param; t <= isl_dim_out; ++t) {
1116 if (t == dst_type) {
1117 get_ids(space, t, 0, dst_pos, ids + off);
1118 off += dst_pos;
1119 get_ids(space, src_type, src_pos, n, ids + off);
1120 off += n;
1121 get_ids(space, t, dst_pos, s[t - o] - dst_pos,
1122 ids + off);
1123 off += s[t - o] - dst_pos;
1124 } else if (t == src_type) {
1125 get_ids(space, t, 0, src_pos, ids + off);
1126 off += src_pos;
1127 get_ids(space, t, src_pos + n,
1128 s[t - o] - src_pos - n, ids + off);
1129 off += s[t - o] - src_pos - n;
1130 } else {
1131 get_ids(space, t, 0, s[t - o], ids + off);
1132 off += s[t - o];
1133 }
1134 }
1135 free(space->ids);
1136 space->ids = ids;
1137 space->n_id = space->nparam + space->n_in + space->n_out;
1138 }
1139
1140 switch (dst_type) {
1141 case isl_dim_param: space->nparam += n; break;
1142 case isl_dim_in: space->n_in += n; break;
1143 case isl_dim_out: space->n_out += n; break;
1144 default: ;
1145 }
1146
1147 switch (src_type) {
1148 case isl_dim_param: space->nparam -= n; break;
1149 case isl_dim_in: space->n_in -= n; break;
1150 case isl_dim_out: space->n_out -= n; break;
1151 default: ;
1152 }
1153
1154 if (dst_type != isl_dim_param && src_type != isl_dim_param)
1155 return space;
1156
1157 for (i = 0; i < 2; ++i) {
1158 if (!space->nested[i])
1159 continue;
1160 space->nested[i] = isl_space_replace(space->nested[i],
1161 isl_dim_param, space);
1162 if (!space->nested[i])
1163 goto error;
1164 }
1165
1166 return space;
1167error:
1168 isl_space_free(space);
1169 return NULL((void*)0);
1170}
1171
1172/* Check that "space1" and "space2" have the same parameters,
1173 * reporting an error if they do not.
1174 */
1175isl_stat isl_space_check_equal_params(__isl_keep isl_space *space1,
1176 __isl_keep isl_space *space2)
1177{
1178 isl_bool equal;
1179
1180 equal = isl_space_has_equal_params(space1, space2);
1181 if (equal < 0)
1182 return isl_stat_error;
1183 if (!equal)
1184 isl_die(isl_space_get_ctx(space1), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space1), isl_error_invalid
, "parameters need to match", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1185); return isl_stat_error; } while (0)
1185 "parameters need to match", return isl_stat_error)do { isl_handle_error(isl_space_get_ctx(space1), isl_error_invalid
, "parameters need to match", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1185); return isl_stat_error; } while (0);
1186 return isl_stat_ok;
1187}
1188
1189__isl_give isl_space *isl_space_join(__isl_take isl_space *left,
1190 __isl_take isl_space *right)
1191{
1192 isl_space *dim;
1193
1194 if (isl_space_check_equal_params(left, right) < 0)
1195 goto error;
1196
1197 isl_assert(left->ctx,do { if (isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in
)) break; do { isl_handle_error(left->ctx, isl_error_unknown
, "Assertion \"" "isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in)"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1199); goto error; } while (0); } while (0)
1198 isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in),do { if (isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in
)) break; do { isl_handle_error(left->ctx, isl_error_unknown
, "Assertion \"" "isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in)"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1199); goto error; } while (0); } while (0)
1199 goto error)do { if (isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in
)) break; do { isl_handle_error(left->ctx, isl_error_unknown
, "Assertion \"" "isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_in)"
"\" failed", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1199); goto error; } while (0); } while (0);
1200
1201 dim = isl_space_alloc(left->ctx, left->nparam, left->n_in, right->n_out);
1202 if (!dim)
1203 goto error;
1204
1205 dim = copy_ids(dim, isl_dim_param, 0, left, isl_dim_param);
1206 dim = copy_ids(dim, isl_dim_in, 0, left, isl_dim_in);
1207 dim = copy_ids(dim, isl_dim_out, 0, right, isl_dim_out);
1208
1209 if (dim && left->tuple_id[0] &&
1210 !(dim->tuple_id[0] = isl_id_copy(left->tuple_id[0])))
1211 goto error;
1212 if (dim && right->tuple_id[1] &&
1213 !(dim->tuple_id[1] = isl_id_copy(right->tuple_id[1])))
1214 goto error;
1215 if (dim && left->nested[0] &&
1216 !(dim->nested[0] = isl_space_copy(left->nested[0])))
1217 goto error;
1218 if (dim && right->nested[1] &&
1219 !(dim->nested[1] = isl_space_copy(right->nested[1])))
1220 goto error;
1221
1222 isl_space_free(left);
1223 isl_space_free(right);
1224
1225 return dim;
1226error:
1227 isl_space_free(left);
1228 isl_space_free(right);
1229 return NULL((void*)0);
1230}
1231
1232/* Given two map spaces { A -> C } and { B -> D }, construct the space
1233 * { [A -> B] -> [C -> D] }.
1234 * Given two set spaces { A } and { B }, construct the space { [A -> B] }.
1235 */
1236__isl_give isl_space *isl_space_product(__isl_take isl_space *left,
1237 __isl_take isl_space *right)
1238{
1239 isl_space *dom1, *dom2, *nest1, *nest2;
1240 int is_set;
1241
1242 if (!left || !right)
1243 goto error;
1244
1245 is_set = isl_space_is_set(left);
1246 if (is_set != isl_space_is_set(right))
1247 isl_die(isl_space_get_ctx(left), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(left), isl_error_invalid
, "expecting either two set spaces or two map spaces", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1249); goto error; } while (0)
1248 "expecting either two set spaces or two map spaces",do { isl_handle_error(isl_space_get_ctx(left), isl_error_invalid
, "expecting either two set spaces or two map spaces", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1249); goto error; } while (0)
1249 goto error)do { isl_handle_error(isl_space_get_ctx(left), isl_error_invalid
, "expecting either two set spaces or two map spaces", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1249); goto error; } while (0);
1250 if (is_set)
1251 return isl_space_range_product(left, right);
1252
1253 if (isl_space_check_equal_params(left, right) < 0)
1254 goto error;
1255
1256 dom1 = isl_space_domain(isl_space_copy(left));
1257 dom2 = isl_space_domain(isl_space_copy(right));
1258 nest1 = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2));
1259
1260 dom1 = isl_space_range(left);
1261 dom2 = isl_space_range(right);
1262 nest2 = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2));
1263
1264 return isl_space_join(isl_space_reverse(nest1), nest2);
1265error:
1266 isl_space_free(left);
1267 isl_space_free(right);
1268 return NULL((void*)0);
1269}
1270
1271/* Given two spaces { A -> C } and { B -> C }, construct the space
1272 * { [A -> B] -> C }
1273 */
1274__isl_give isl_space *isl_space_domain_product(__isl_take isl_space *left,
1275 __isl_take isl_space *right)
1276{
1277 isl_space *ran, *dom1, *dom2, *nest;
1278
1279 if (isl_space_check_equal_params(left, right) < 0)
1280 goto error;
1281
1282 if (!isl_space_tuple_is_equal(left, isl_dim_out, right, isl_dim_out))
1283 isl_die(left->ctx, isl_error_invalid,do { isl_handle_error(left->ctx, isl_error_invalid, "ranges need to match"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1284); goto error; } while (0)
1284 "ranges need to match", goto error)do { isl_handle_error(left->ctx, isl_error_invalid, "ranges need to match"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1284); goto error; } while (0);
1285
1286 ran = isl_space_range(isl_space_copy(left));
1287
1288 dom1 = isl_space_domain(left);
1289 dom2 = isl_space_domain(right);
1290 nest = isl_space_wrap(isl_space_join(isl_space_reverse(dom1), dom2));
1291
1292 return isl_space_join(isl_space_reverse(nest), ran);
1293error:
1294 isl_space_free(left);
1295 isl_space_free(right);
1296 return NULL((void*)0);
1297}
1298
1299__isl_give isl_space *isl_space_range_product(__isl_take isl_space *left,
1300 __isl_take isl_space *right)
1301{
1302 isl_space *dom, *ran1, *ran2, *nest;
1303
1304 if (isl_space_check_equal_params(left, right) < 0)
1305 goto error;
1306
1307 if (!isl_space_tuple_is_equal(left, isl_dim_in, right, isl_dim_in))
1308 isl_die(left->ctx, isl_error_invalid,do { isl_handle_error(left->ctx, isl_error_invalid, "domains need to match"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1309); goto error; } while (0)
1309 "domains need to match", goto error)do { isl_handle_error(left->ctx, isl_error_invalid, "domains need to match"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1309); goto error; } while (0);
1310
1311 dom = isl_space_domain(isl_space_copy(left));
1312
1313 ran1 = isl_space_range(left);
1314 ran2 = isl_space_range(right);
1315 nest = isl_space_wrap(isl_space_join(isl_space_reverse(ran1), ran2));
1316
1317 return isl_space_join(isl_space_reverse(dom), nest);
1318error:
1319 isl_space_free(left);
1320 isl_space_free(right);
1321 return NULL((void*)0);
1322}
1323
1324/* Given a space of the form [A -> B] -> [C -> D], return the space A -> C.
1325 */
1326__isl_give isl_space *isl_space_factor_domain(__isl_take isl_space *space)
1327{
1328 space = isl_space_domain_factor_domain(space);
1329 space = isl_space_range_factor_domain(space);
1330 return space;
1331}
1332
1333/* Given a space of the form [A -> B] -> C, return the space A -> C.
1334 */
1335__isl_give isl_space *isl_space_domain_factor_domain(
1336 __isl_take isl_space *space)
1337{
1338 isl_space *nested;
1339 isl_space *domain;
1340
1341 if (!space)
1342 return NULL((void*)0);
1343 if (!isl_space_domain_is_wrapping(space))
1344 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "domain not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1345); return isl_space_free(space); } while (0)
1345 "domain not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "domain not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1345); return isl_space_free(space); } while (0);
1346
1347 nested = space->nested[0];
1348 domain = isl_space_copy(space);
1349 domain = isl_space_drop_dims(domain, isl_dim_in,
1350 nested->n_in, nested->n_out);
1351 if (!domain)
1352 return isl_space_free(space);
1353 if (nested->tuple_id[0]) {
1354 domain->tuple_id[0] = isl_id_copy(nested->tuple_id[0]);
1355 if (!domain->tuple_id[0])
1356 goto error;
1357 }
1358 if (nested->nested[0]) {
1359 domain->nested[0] = isl_space_copy(nested->nested[0]);
1360 if (!domain->nested[0])
1361 goto error;
1362 }
1363
1364 isl_space_free(space);
1365 return domain;
1366error:
1367 isl_space_free(space);
1368 isl_space_free(domain);
1369 return NULL((void*)0);
1370}
1371
1372/* Given a space of the form [A -> B] -> C, return the space B -> C.
1373 */
1374__isl_give isl_space *isl_space_domain_factor_range(
1375 __isl_take isl_space *space)
1376{
1377 isl_space *nested;
1378 isl_space *range;
1379
1380 if (!space)
1381 return NULL((void*)0);
1382 if (!isl_space_domain_is_wrapping(space))
1383 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "domain not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1384); return isl_space_free(space); } while (0)
1384 "domain not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "domain not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1384); return isl_space_free(space); } while (0);
1385
1386 nested = space->nested[0];
1387 range = isl_space_copy(space);
1388 range = isl_space_drop_dims(range, isl_dim_in, 0, nested->n_in);
1389 if (!range)
1390 return isl_space_free(space);
1391 if (nested->tuple_id[1]) {
1392 range->tuple_id[0] = isl_id_copy(nested->tuple_id[1]);
1393 if (!range->tuple_id[0])
1394 goto error;
1395 }
1396 if (nested->nested[1]) {
1397 range->nested[0] = isl_space_copy(nested->nested[1]);
1398 if (!range->nested[0])
1399 goto error;
1400 }
1401
1402 isl_space_free(space);
1403 return range;
1404error:
1405 isl_space_free(space);
1406 isl_space_free(range);
1407 return NULL((void*)0);
1408}
1409
1410/* Given a space of the form A -> [B -> C], return the space A -> B.
1411 */
1412__isl_give isl_space *isl_space_range_factor_domain(
1413 __isl_take isl_space *space)
1414{
1415 isl_space *nested;
1416 isl_space *domain;
1417
1418 if (!space)
1419 return NULL((void*)0);
1420 if (!isl_space_range_is_wrapping(space))
1421 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "range not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1422); return isl_space_free(space); } while (0)
1422 "range not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "range not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1422); return isl_space_free(space); } while (0);
1423
1424 nested = space->nested[1];
1425 domain = isl_space_copy(space);
1426 domain = isl_space_drop_dims(domain, isl_dim_out,
1427 nested->n_in, nested->n_out);
1428 if (!domain)
1429 return isl_space_free(space);
1430 if (nested->tuple_id[0]) {
1431 domain->tuple_id[1] = isl_id_copy(nested->tuple_id[0]);
1432 if (!domain->tuple_id[1])
1433 goto error;
1434 }
1435 if (nested->nested[0]) {
1436 domain->nested[1] = isl_space_copy(nested->nested[0]);
1437 if (!domain->nested[1])
1438 goto error;
1439 }
1440
1441 isl_space_free(space);
1442 return domain;
1443error:
1444 isl_space_free(space);
1445 isl_space_free(domain);
1446 return NULL((void*)0);
1447}
1448
1449/* Internal function that selects the range of the map that is
1450 * embedded in either a set space or the range of a map space.
1451 * In particular, given a space of the form [A -> B], return the space B.
1452 * Given a space of the form A -> [B -> C], return the space A -> C.
1453 */
1454static __isl_give isl_space *range_factor_range(__isl_take isl_space *space)
1455{
1456 isl_space *nested;
1457 isl_space *range;
1458
1459 if (!space)
1460 return NULL((void*)0);
1461
1462 nested = space->nested[1];
1463 range = isl_space_copy(space);
1464 range = isl_space_drop_dims(range, isl_dim_out, 0, nested->n_in);
1465 if (!range)
1466 return isl_space_free(space);
1467 if (nested->tuple_id[1]) {
1468 range->tuple_id[1] = isl_id_copy(nested->tuple_id[1]);
1469 if (!range->tuple_id[1])
1470 goto error;
1471 }
1472 if (nested->nested[1]) {
1473 range->nested[1] = isl_space_copy(nested->nested[1]);
1474 if (!range->nested[1])
1475 goto error;
1476 }
1477
1478 isl_space_free(space);
1479 return range;
1480error:
1481 isl_space_free(space);
1482 isl_space_free(range);
1483 return NULL((void*)0);
1484}
1485
1486/* Given a space of the form A -> [B -> C], return the space A -> C.
1487 */
1488__isl_give isl_space *isl_space_range_factor_range(
1489 __isl_take isl_space *space)
1490{
1491 if (!space)
1492 return NULL((void*)0);
1493 if (!isl_space_range_is_wrapping(space))
1494 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "range not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1495); return isl_space_free(space); } while (0)
1495 "range not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "range not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1495); return isl_space_free(space); } while (0);
1496
1497 return range_factor_range(space);
1498}
1499
1500/* Given a space of the form [A -> B], return the space B.
1501 */
1502static __isl_give isl_space *set_factor_range(__isl_take isl_space *space)
1503{
1504 if (!space)
1505 return NULL((void*)0);
1506 if (!isl_space_is_wrapping(space))
1507 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1508); return isl_space_free(space); } while (0)
1508 "not a product", return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a product", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1508); return isl_space_free(space); } while (0);
1509
1510 return range_factor_range(space);
1511}
1512
1513/* Given a space of the form [A -> B] -> [C -> D], return the space B -> D.
1514 * Given a space of the form [A -> B], return the space B.
1515 */
1516__isl_give isl_space *isl_space_factor_range(__isl_take isl_space *space)
1517{
1518 if (!space)
1519 return NULL((void*)0);
1520 if (isl_space_is_set(space))
1521 return set_factor_range(space);
1522 space = isl_space_domain_factor_range(space);
1523 space = isl_space_range_factor_range(space);
1524 return space;
1525}
1526
1527__isl_give isl_space *isl_space_map_from_set(__isl_take isl_space *space)
1528{
1529 isl_ctx *ctx;
1530 isl_id **ids = NULL((void*)0);
1531 int n_id;
1532
1533 if (!space)
1534 return NULL((void*)0);
1535 ctx = isl_space_get_ctx(space);
1536 if (!isl_space_is_set(space))
1537 isl_die(ctx, isl_error_invalid, "not a set space", goto error)do { isl_handle_error(ctx, isl_error_invalid, "not a set space"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1537); goto error; } while (0);
1538 space = isl_space_cow(space);
1539 if (!space)
1540 return NULL((void*)0);
1541 n_id = space->nparam + space->n_out + space->n_out;
1542 if (n_id > 0 && space->ids) {
1543 ids = isl_calloc_array(space->ctx, isl_id *, n_id)((isl_id * *)isl_calloc_or_die(space->ctx, n_id, sizeof(isl_id
*)));
1544 if (!ids)
1545 goto error;
1546 get_ids(space, isl_dim_param, 0, space->nparam, ids);
1547 get_ids(space, isl_dim_out, 0, space->n_out,
1548 ids + space->nparam);
1549 }
1550 space->n_in = space->n_out;
1551 if (ids) {
1552 free(space->ids);
1553 space->ids = ids;
1554 space->n_id = n_id;
1555 space = copy_ids(space, isl_dim_out, 0, space, isl_dim_in);
1556 }
1557 isl_id_free(space->tuple_id[0]);
1558 space->tuple_id[0] = isl_id_copy(space->tuple_id[1]);
1559 isl_space_free(space->nested[0]);
1560 space->nested[0] = isl_space_copy(space->nested[1]);
1561 return space;
1562error:
1563 isl_space_free(space);
1564 return NULL((void*)0);
1565}
1566
1567__isl_give isl_space *isl_space_map_from_domain_and_range(
1568 __isl_take isl_space *domain, __isl_take isl_space *range)
1569{
1570 if (!domain || !range)
1571 goto error;
1572 if (!isl_space_is_set(domain))
1573 isl_die(isl_space_get_ctx(domain), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(domain), isl_error_invalid
, "domain is not a set space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1574); goto error; } while (0)
1574 "domain is not a set space", goto error)do { isl_handle_error(isl_space_get_ctx(domain), isl_error_invalid
, "domain is not a set space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1574); goto error; } while (0);
1575 if (!isl_space_is_set(range))
1576 isl_die(isl_space_get_ctx(range), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(range), isl_error_invalid
, "range is not a set space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1577); goto error; } while (0)
1577 "range is not a set space", goto error)do { isl_handle_error(isl_space_get_ctx(range), isl_error_invalid
, "range is not a set space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1577); goto error; } while (0);
1578 return isl_space_join(isl_space_reverse(domain), range);
1579error:
1580 isl_space_free(domain);
1581 isl_space_free(range);
1582 return NULL((void*)0);
1583}
1584
1585static __isl_give isl_space *set_ids(__isl_take isl_space *dim,
1586 enum isl_dim_type type,
1587 unsigned first, unsigned n, __isl_take isl_id **ids)
1588{
1589 int i;
1590
1591 for (i = 0; i < n ; ++i)
1592 dim = set_id(dim, type, first + i, ids[i]);
1593
1594 return dim;
1595}
1596
1597__isl_give isl_space *isl_space_reverse(__isl_take isl_space *dim)
1598{
1599 unsigned t;
1600 isl_space *nested;
1601 isl_id **ids = NULL((void*)0);
1602 isl_id *id;
1603
1604 if (!dim)
1605 return NULL((void*)0);
1606 if (match(dim, isl_dim_in, dim, isl_dim_out))
1607 return dim;
1608
1609 dim = isl_space_cow(dim);
1610 if (!dim)
1611 return NULL((void*)0);
1612
1613 id = dim->tuple_id[0];
1614 dim->tuple_id[0] = dim->tuple_id[1];
1615 dim->tuple_id[1] = id;
1616
1617 nested = dim->nested[0];
1618 dim->nested[0] = dim->nested[1];
1619 dim->nested[1] = nested;
1620
1621 if (dim->ids) {
1622 int n_id = dim->n_in + dim->n_out;
1623 ids = isl_alloc_array(dim->ctx, isl_id *, n_id)((isl_id * *)isl_malloc_or_die(dim->ctx, (n_id)*sizeof(isl_id
*)));
1624 if (n_id && !ids)
1625 goto error;
1626 get_ids(dim, isl_dim_in, 0, dim->n_in, ids);
1627 get_ids(dim, isl_dim_out, 0, dim->n_out, ids + dim->n_in);
1628 }
1629
1630 t = dim->n_in;
1631 dim->n_in = dim->n_out;
1632 dim->n_out = t;
1633
1634 if (dim->ids) {
1635 dim = set_ids(dim, isl_dim_out, 0, dim->n_out, ids);
1636 dim = set_ids(dim, isl_dim_in, 0, dim->n_in, ids + dim->n_out);
1637 free(ids);
1638 }
1639
1640 return dim;
1641error:
1642 free(ids);
1643 isl_space_free(dim);
1644 return NULL((void*)0);
1645}
1646
1647__isl_give isl_space *isl_space_drop_dims(__isl_take isl_space *dim,
1648 enum isl_dim_type type, unsigned first, unsigned num)
1649{
1650 int i;
1651
1652 if (!dim)
1653 return NULL((void*)0);
1654
1655 if (num == 0)
1656 return isl_space_reset(dim, type);
1657
1658 if (!valid_dim_type(type))
1659 isl_die(dim->ctx, isl_error_invalid,do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot drop dimensions of specified type"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1660); goto error; } while (0)
1660 "cannot drop dimensions of specified type", goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "cannot drop dimensions of specified type"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1660); goto error; } while (0);
1661
1662 if (first + num > n(dim, type) || first + num < first)
1663 isl_die(isl_space_get_ctx(dim), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "index out of bounds", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1664); return isl_space_free(dim); } while (0)
1664 "index out of bounds", return isl_space_free(dim))do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "index out of bounds", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1664); return isl_space_free(dim); } while (0);
1665 dim = isl_space_cow(dim);
1666 if (!dim)
1667 goto error;
1668 if (dim->ids) {
1669 dim = extend_ids(dim);
1670 if (!dim)
1671 goto error;
1672 for (i = 0; i < num; ++i)
1673 isl_id_free(get_id(dim, type, first + i));
1674 for (i = first+num; i < n(dim, type); ++i)
1675 set_id(dim, type, i - num, get_id(dim, type, i));
1676 switch (type) {
1677 case isl_dim_param:
1678 get_ids(dim, isl_dim_in, 0, dim->n_in,
1679 dim->ids + offset(dim, isl_dim_in) - num);
1680 case isl_dim_in:
1681 get_ids(dim, isl_dim_out, 0, dim->n_out,
1682 dim->ids + offset(dim, isl_dim_out) - num);
1683 default:
1684 ;
1685 }
1686 dim->n_id -= num;
1687 }
1688 switch (type) {
1689 case isl_dim_param: dim->nparam -= num; break;
1690 case isl_dim_in: dim->n_in -= num; break;
1691 case isl_dim_out: dim->n_out -= num; break;
1692 default: ;
1693 }
1694 dim = isl_space_reset(dim, type);
1695 if (type == isl_dim_param) {
1696 if (dim && dim->nested[0] &&
1697 !(dim->nested[0] = isl_space_drop_dims(dim->nested[0],
1698 isl_dim_param, first, num)))
1699 goto error;
1700 if (dim && dim->nested[1] &&
1701 !(dim->nested[1] = isl_space_drop_dims(dim->nested[1],
1702 isl_dim_param, first, num)))
1703 goto error;
1704 }
1705 return dim;
1706error:
1707 isl_space_free(dim);
1708 return NULL((void*)0);
1709}
1710
1711__isl_give isl_space *isl_space_drop_inputs(__isl_take isl_space *dim,
1712 unsigned first, unsigned n)
1713{
1714 if (!dim)
1715 return NULL((void*)0);
1716 return isl_space_drop_dims(dim, isl_dim_in, first, n);
1717}
1718
1719__isl_give isl_space *isl_space_drop_outputs(__isl_take isl_space *dim,
1720 unsigned first, unsigned n)
1721{
1722 if (!dim)
1723 return NULL((void*)0);
1724 return isl_space_drop_dims(dim, isl_dim_out, first, n);
1725}
1726
1727__isl_give isl_space *isl_space_domain(__isl_take isl_space *space)
1728{
1729 if (!space)
1730 return NULL((void*)0);
1731 space = isl_space_drop_dims(space, isl_dim_out, 0, space->n_out);
1732 space = isl_space_reverse(space);
1733 space = mark_as_set(space);
1734 return space;
1735}
1736
1737__isl_give isl_space *isl_space_from_domain(__isl_take isl_space *dim)
1738{
1739 if (!dim)
1740 return NULL((void*)0);
1741 if (!isl_space_is_set(dim))
1742 isl_die(isl_space_get_ctx(dim), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "not a set space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1743); goto error; } while (0)
1743 "not a set space", goto error)do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "not a set space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1743); goto error; } while (0);
1744 dim = isl_space_reverse(dim);
1745 dim = isl_space_reset(dim, isl_dim_out);
1746 return dim;
1747error:
1748 isl_space_free(dim);
1749 return NULL((void*)0);
1750}
1751
1752__isl_give isl_space *isl_space_range(__isl_take isl_space *space)
1753{
1754 if (!space)
1755 return NULL((void*)0);
1756 space = isl_space_drop_dims(space, isl_dim_in, 0, space->n_in);
1757 space = mark_as_set(space);
1758 return space;
1759}
1760
1761__isl_give isl_space *isl_space_from_range(__isl_take isl_space *dim)
1762{
1763 if (!dim)
1764 return NULL((void*)0);
1765 if (!isl_space_is_set(dim))
1766 isl_die(isl_space_get_ctx(dim), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "not a set space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1767); goto error; } while (0)
1767 "not a set space", goto error)do { isl_handle_error(isl_space_get_ctx(dim), isl_error_invalid
, "not a set space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1767); goto error; } while (0);
1768 return isl_space_reset(dim, isl_dim_in);
1769error:
1770 isl_space_free(dim);
1771 return NULL((void*)0);
1772}
1773
1774/* Given a map space A -> B, return the map space [A -> B] -> A.
1775 */
1776__isl_give isl_space *isl_space_domain_map(__isl_take isl_space *space)
1777{
1778 isl_space *domain;
1779
1780 domain = isl_space_from_range(isl_space_domain(isl_space_copy(space)));
1781 space = isl_space_from_domain(isl_space_wrap(space));
1782 space = isl_space_join(space, domain);
1783
1784 return space;
1785}
1786
1787/* Given a map space A -> B, return the map space [A -> B] -> B.
1788 */
1789__isl_give isl_space *isl_space_range_map(__isl_take isl_space *space)
1790{
1791 isl_space *range;
1792
1793 range = isl_space_from_range(isl_space_range(isl_space_copy(space)));
1794 space = isl_space_from_domain(isl_space_wrap(space));
1795 space = isl_space_join(space, range);
1796
1797 return space;
1798}
1799
1800__isl_give isl_space *isl_space_params(__isl_take isl_space *space)
1801{
1802 if (isl_space_is_params(space))
1803 return space;
1804 space = isl_space_drop_dims(space,
1805 isl_dim_in, 0, isl_space_dim(space, isl_dim_in));
1806 space = isl_space_drop_dims(space,
1807 isl_dim_out, 0, isl_space_dim(space, isl_dim_out));
1808 space = mark_as_params(space);
1809 return space;
1810}
1811
1812__isl_give isl_space *isl_space_set_from_params(__isl_take isl_space *space)
1813{
1814 if (!space)
1815 return NULL((void*)0);
1816 if (!isl_space_is_params(space))
1817 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a parameter space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1818); goto error; } while (0)
1818 "not a parameter space", goto error)do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "not a parameter space", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 1818); goto error; } while (0);
1819 return isl_space_reset(space, isl_dim_set);
1820error:
1821 isl_space_free(space);
1822 return NULL((void*)0);
1823}
1824
1825__isl_give isl_space *isl_space_underlying(__isl_take isl_space *dim,
1826 unsigned n_div)
1827{
1828 int i;
1829
1830 if (!dim)
1831 return NULL((void*)0);
1832 if (n_div == 0 &&
1833 dim->nparam == 0 && dim->n_in == 0 && dim->n_id == 0)
1834 return isl_space_reset(isl_space_reset(dim, isl_dim_in), isl_dim_out);
1835 dim = isl_space_cow(dim);
1836 if (!dim)
1837 return NULL((void*)0);
1838 dim->n_out += dim->nparam + dim->n_in + n_div;
1839 dim->nparam = 0;
1840 dim->n_in = 0;
1841
1842 for (i = 0; i < dim->n_id; ++i)
1843 isl_id_free(get_id(dim, isl_dim_out, i));
1844 dim->n_id = 0;
1845 dim = isl_space_reset(dim, isl_dim_in);
1846 dim = isl_space_reset(dim, isl_dim_out);
1847
1848 return dim;
1849}
1850
1851/* Are the two spaces the same, including positions and names of parameters?
1852 */
1853isl_bool isl_space_is_equal(__isl_keep isl_space *space1,
1854 __isl_keep isl_space *space2)
1855{
1856 isl_bool equal;
1857
1858 if (!space1 || !space2)
1859 return isl_bool_error;
1860 if (space1 == space2)
1861 return isl_bool_true;
1862 equal = isl_space_has_equal_params(space1, space2);
1863 if (equal < 0 || !equal)
1864 return equal;
1865 return isl_space_has_equal_tuples(space1, space2);
1866}
1867
1868/* Is space1 equal to the domain of space2?
1869 *
1870 * In the internal version we also allow space2 to be the space of a set,
1871 * provided space1 is a parameter space.
1872 */
1873isl_bool isl_space_is_domain_internal(__isl_keep isl_space *space1,
1874 __isl_keep isl_space *space2)
1875{
1876 isl_bool equal_params;
1877
1878 if (!space1 || !space2)
1879 return isl_bool_error;
1880 if (!isl_space_is_set(space1))
1881 return isl_bool_false;
1882 equal_params = isl_space_has_equal_params(space1, space2);
1883 if (equal_params < 0 || !equal_params)
1884 return equal_params;
1885 return isl_space_tuple_is_equal(space1, isl_dim_set,
1886 space2, isl_dim_in);
1887}
1888
1889/* Is space1 equal to the domain of space2?
1890 */
1891isl_bool isl_space_is_domain(__isl_keep isl_space *space1,
1892 __isl_keep isl_space *space2)
1893{
1894 if (!space2)
1895 return isl_bool_error;
1896 if (!isl_space_is_map(space2))
1897 return isl_bool_false;
1898 return isl_space_is_domain_internal(space1, space2);
1899}
1900
1901/* Is space1 equal to the range of space2?
1902 *
1903 * In the internal version, space2 is allowed to be the space of a set,
1904 * in which case it should be equal to space1.
1905 */
1906isl_bool isl_space_is_range_internal(__isl_keep isl_space *space1,
1907 __isl_keep isl_space *space2)
1908{
1909 isl_bool equal_params;
1910
1911 if (!space1 || !space2)
1912 return isl_bool_error;
1913 if (!isl_space_is_set(space1))
1914 return isl_bool_false;
1915 equal_params = isl_space_has_equal_params(space1, space2);
1916 if (equal_params < 0 || !equal_params)
1917 return equal_params;
1918 return isl_space_tuple_is_equal(space1, isl_dim_set,
1919 space2, isl_dim_out);
1920}
1921
1922/* Is space1 equal to the range of space2?
1923 */
1924isl_bool isl_space_is_range(__isl_keep isl_space *space1,
1925 __isl_keep isl_space *space2)
1926{
1927 if (!space2)
1928 return isl_bool_error;
1929 if (!isl_space_is_map(space2))
1930 return isl_bool_false;
1931 return isl_space_is_range_internal(space1, space2);
1932}
1933
1934/* Update "hash" by hashing in the parameters of "space".
1935 */
1936static uint32_t isl_hash_params(uint32_t hash, __isl_keep isl_space *space)
1937{
1938 int i;
1939 isl_id *id;
1940
1941 if (!space)
1942 return hash;
1943
1944 isl_hash_byte(hash, space->nparam % 256)do { hash *= 16777619; hash ^= space->nparam % 256; } while
(0);
1945
1946 for (i = 0; i < space->nparam; ++i) {
1947 id = get_id(space, isl_dim_param, i);
1948 hash = isl_hash_id(hash, id);
1949 }
1950
1951 return hash;
1952}
1953
1954/* Update "hash" by hashing in the tuples of "space".
1955 * Changes in this function should be reflected in isl_hash_tuples_domain.
1956 */
1957static uint32_t isl_hash_tuples(uint32_t hash, __isl_keep isl_space *space)
1958{
1959 isl_id *id;
1960
1961 if (!space)
1962 return hash;
1963
1964 isl_hash_byte(hash, space->n_in % 256)do { hash *= 16777619; hash ^= space->n_in % 256; } while(
0);
1965 isl_hash_byte(hash, space->n_out % 256)do { hash *= 16777619; hash ^= space->n_out % 256; } while
(0);
1966
1967 id = tuple_id(space, isl_dim_in);
1968 hash = isl_hash_id(hash, id);
1969 id = tuple_id(space, isl_dim_out);
1970 hash = isl_hash_id(hash, id);
1971
1972 hash = isl_hash_tuples(hash, space->nested[0]);
1973 hash = isl_hash_tuples(hash, space->nested[1]);
1974
1975 return hash;
1976}
1977
1978/* Update "hash" by hashing in the domain tuple of "space".
1979 * The result of this function is equal to the result of applying
1980 * isl_hash_tuples to the domain of "space".
1981 */
1982static uint32_t isl_hash_tuples_domain(uint32_t hash,
1983 __isl_keep isl_space *space)
1984{
1985 isl_id *id;
1986
1987 if (!space)
1988 return hash;
1989
1990 isl_hash_byte(hash, 0)do { hash *= 16777619; hash ^= 0; } while(0);
1991 isl_hash_byte(hash, space->n_in % 256)do { hash *= 16777619; hash ^= space->n_in % 256; } while(
0);
1992
1993 hash = isl_hash_id(hash, &isl_id_none);
1994 id = tuple_id(space, isl_dim_in);
1995 hash = isl_hash_id(hash, id);
1996
1997 hash = isl_hash_tuples(hash, space->nested[0]);
1998
1999 return hash;
2000}
2001
2002/* Return a hash value that digests the tuples of "space",
2003 * i.e., that ignores the parameters.
2004 */
2005uint32_t isl_space_get_tuple_hash(__isl_keep isl_space *space)
2006{
2007 uint32_t hash;
2008
2009 if (!space)
2010 return 0;
2011
2012 hash = isl_hash_init()(2166136261u);
2013 hash = isl_hash_tuples(hash, space);
2014
2015 return hash;
2016}
2017
2018uint32_t isl_space_get_hash(__isl_keep isl_space *space)
2019{
2020 uint32_t hash;
2021
2022 if (!space)
2023 return 0;
2024
2025 hash = isl_hash_init()(2166136261u);
2026 hash = isl_hash_params(hash, space);
2027 hash = isl_hash_tuples(hash, space);
2028
2029 return hash;
2030}
2031
2032/* Return the hash value of the domain of "space".
2033 * That is, isl_space_get_domain_hash(space) is equal to
2034 * isl_space_get_hash(isl_space_domain(space)).
2035 */
2036uint32_t isl_space_get_domain_hash(__isl_keep isl_space *space)
2037{
2038 uint32_t hash;
2039
2040 if (!space)
2041 return 0;
2042
2043 hash = isl_hash_init()(2166136261u);
2044 hash = isl_hash_params(hash, space);
2045 hash = isl_hash_tuples_domain(hash, space);
2046
2047 return hash;
2048}
2049
2050isl_bool isl_space_is_wrapping(__isl_keep isl_space *dim)
2051{
2052 if (!dim)
2053 return isl_bool_error;
2054
2055 if (!isl_space_is_set(dim))
2056 return isl_bool_false;
2057
2058 return dim->nested[1] != NULL((void*)0);
2059}
2060
2061/* Is "space" the space of a map where the domain is a wrapped map space?
2062 */
2063isl_bool isl_space_domain_is_wrapping(__isl_keep isl_space *space)
2064{
2065 if (!space)
2066 return isl_bool_error;
2067
2068 if (isl_space_is_set(space))
2069 return isl_bool_false;
2070
2071 return space->nested[0] != NULL((void*)0);
2072}
2073
2074/* Is "space" the space of a map where the range is a wrapped map space?
2075 */
2076isl_bool isl_space_range_is_wrapping(__isl_keep isl_space *space)
2077{
2078 if (!space)
2079 return isl_bool_error;
2080
2081 if (isl_space_is_set(space))
2082 return isl_bool_false;
2083
2084 return space->nested[1] != NULL((void*)0);
2085}
2086
2087/* Is "space" a product of two spaces?
2088 * That is, is it a wrapping set space or a map space
2089 * with wrapping domain and range?
2090 */
2091isl_bool isl_space_is_product(__isl_keep isl_space *space)
2092{
2093 isl_bool is_set;
2094 isl_bool is_product;
2095
2096 is_set = isl_space_is_set(space);
2097 if (is_set < 0)
2098 return isl_bool_error;
2099 if (is_set)
2100 return isl_space_is_wrapping(space);
2101 is_product = isl_space_domain_is_wrapping(space);
2102 if (is_product < 0 || !is_product)
2103 return is_product;
2104 return isl_space_range_is_wrapping(space);
2105}
2106
2107__isl_give isl_space *isl_space_wrap(__isl_take isl_space *dim)
2108{
2109 isl_space *wrap;
2110
2111 if (!dim)
2112 return NULL((void*)0);
2113
2114 wrap = isl_space_set_alloc(dim->ctx,
2115 dim->nparam, dim->n_in + dim->n_out);
2116
2117 wrap = copy_ids(wrap, isl_dim_param, 0, dim, isl_dim_param);
2118 wrap = copy_ids(wrap, isl_dim_set, 0, dim, isl_dim_in);
2119 wrap = copy_ids(wrap, isl_dim_set, dim->n_in, dim, isl_dim_out);
2120
2121 if (!wrap)
2122 goto error;
2123
2124 wrap->nested[1] = dim;
2125
2126 return wrap;
2127error:
2128 isl_space_free(dim);
2129 return NULL((void*)0);
2130}
2131
2132__isl_give isl_space *isl_space_unwrap(__isl_take isl_space *dim)
2133{
2134 isl_space *unwrap;
2135
2136 if (!dim)
2137 return NULL((void*)0);
2138
2139 if (!isl_space_is_wrapping(dim))
2140 isl_die(dim->ctx, isl_error_invalid, "not a wrapping space",do { isl_handle_error(dim->ctx, isl_error_invalid, "not a wrapping space"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2141); goto error; } while (0)
2141 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "not a wrapping space"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2141); goto error; } while (0);
2142
2143 unwrap = isl_space_copy(dim->nested[1]);
2144 isl_space_free(dim);
2145
2146 return unwrap;
2147error:
2148 isl_space_free(dim);
2149 return NULL((void*)0);
2150}
2151
2152isl_bool isl_space_is_named_or_nested(__isl_keep isl_space *space,
2153 enum isl_dim_type type)
2154{
2155 if (type != isl_dim_in && type != isl_dim_out)
2156 return isl_bool_false;
2157 if (!space)
2158 return isl_bool_error;
2159 if (space->tuple_id[type - isl_dim_in])
2160 return isl_bool_true;
2161 if (space->nested[type - isl_dim_in])
2162 return isl_bool_true;
2163 return isl_bool_false;
2164}
2165
2166isl_bool isl_space_may_be_set(__isl_keep isl_space *space)
2167{
2168 isl_bool nested;
2169
2170 if (!space)
2171 return isl_bool_error;
2172 if (isl_space_is_set(space))
2173 return isl_bool_true;
2174 if (isl_space_dim(space, isl_dim_in) != 0)
2175 return isl_bool_false;
2176 nested = isl_space_is_named_or_nested(space, isl_dim_in);
2177 if (nested < 0 || nested)
2178 return isl_bool_not(nested);
2179 return isl_bool_true;
2180}
2181
2182__isl_give isl_space *isl_space_reset(__isl_take isl_space *dim,
2183 enum isl_dim_type type)
2184{
2185 if (!isl_space_is_named_or_nested(dim, type))
2186 return dim;
2187
2188 dim = isl_space_cow(dim);
2189 if (!dim)
2190 return NULL((void*)0);
2191
2192 isl_id_free(dim->tuple_id[type - isl_dim_in]);
2193 dim->tuple_id[type - isl_dim_in] = NULL((void*)0);
2194 isl_space_free(dim->nested[type - isl_dim_in]);
2195 dim->nested[type - isl_dim_in] = NULL((void*)0);
2196
2197 return dim;
2198}
2199
2200__isl_give isl_space *isl_space_flatten(__isl_take isl_space *dim)
2201{
2202 if (!dim)
2203 return NULL((void*)0);
2204 if (!dim->nested[0] && !dim->nested[1])
2205 return dim;
2206
2207 if (dim->nested[0])
2208 dim = isl_space_reset(dim, isl_dim_in);
2209 if (dim && dim->nested[1])
2210 dim = isl_space_reset(dim, isl_dim_out);
2211
2212 return dim;
2213}
2214
2215__isl_give isl_space *isl_space_flatten_domain(__isl_take isl_space *dim)
2216{
2217 if (!dim)
2218 return NULL((void*)0);
2219 if (!dim->nested[0])
2220 return dim;
2221
2222 return isl_space_reset(dim, isl_dim_in);
2223}
2224
2225__isl_give isl_space *isl_space_flatten_range(__isl_take isl_space *dim)
2226{
2227 if (!dim)
2228 return NULL((void*)0);
2229 if (!dim->nested[1])
2230 return dim;
2231
2232 return isl_space_reset(dim, isl_dim_out);
2233}
2234
2235/* Replace the dimensions of the given type of dst by those of src.
2236 */
2237__isl_give isl_space *isl_space_replace(__isl_take isl_space *dst,
2238 enum isl_dim_type type, __isl_keep isl_space *src)
2239{
2240 dst = isl_space_cow(dst);
2241
2242 if (!dst || !src)
2243 goto error;
2244
2245 dst = isl_space_drop_dims(dst, type, 0, isl_space_dim(dst, type));
2246 dst = isl_space_add_dims(dst, type, isl_space_dim(src, type));
2247 dst = copy_ids(dst, type, 0, src, type);
2248
2249 if (dst && type == isl_dim_param) {
2250 int i;
2251 for (i = 0; i <= 1; ++i) {
2252 if (!dst->nested[i])
2253 continue;
2254 dst->nested[i] = isl_space_replace(dst->nested[i],
2255 type, src);
2256 if (!dst->nested[i])
2257 goto error;
2258 }
2259 }
2260
2261 return dst;
2262error:
2263 isl_space_free(dst);
2264 return NULL((void*)0);
2265}
2266
2267/* Given a dimension specification "dim" of a set, create a dimension
2268 * specification for the lift of the set. In particular, the result
2269 * is of the form [dim -> local[..]], with n_local variables in the
2270 * range of the wrapped map.
2271 */
2272__isl_give isl_space *isl_space_lift(__isl_take isl_space *dim, unsigned n_local)
2273{
2274 isl_space *local_dim;
2275
2276 if (!dim)
2277 return NULL((void*)0);
2278
2279 local_dim = isl_space_dup(dim);
2280 local_dim = isl_space_drop_dims(local_dim, isl_dim_set, 0, dim->n_out);
2281 local_dim = isl_space_add_dims(local_dim, isl_dim_set, n_local);
2282 local_dim = isl_space_set_tuple_name(local_dim, isl_dim_set, "local");
2283 dim = isl_space_join(isl_space_from_domain(dim),
2284 isl_space_from_range(local_dim));
2285 dim = isl_space_wrap(dim);
2286 dim = isl_space_set_tuple_name(dim, isl_dim_set, "lifted");
2287
2288 return dim;
2289}
2290
2291isl_bool isl_space_can_zip(__isl_keep isl_space *space)
2292{
2293 isl_bool is_set;
2294
2295 is_set = isl_space_is_set(space);
2296 if (is_set < 0)
2297 return isl_bool_error;
2298 if (is_set)
2299 return isl_bool_false;
2300 return isl_space_is_product(space);
2301}
2302
2303__isl_give isl_space *isl_space_zip(__isl_take isl_space *dim)
2304{
2305 isl_space *dom, *ran;
2306 isl_space *dom_dom, *dom_ran, *ran_dom, *ran_ran;
2307
2308 if (!isl_space_can_zip(dim))
2309 isl_die(dim->ctx, isl_error_invalid, "dim cannot be zipped",do { isl_handle_error(dim->ctx, isl_error_invalid, "dim cannot be zipped"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2310); goto error; } while (0)
2310 goto error)do { isl_handle_error(dim->ctx, isl_error_invalid, "dim cannot be zipped"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2310); goto error; } while (0);
2311
2312 if (!dim)
2313 return NULL((void*)0);
2314 dom = isl_space_unwrap(isl_space_domain(isl_space_copy(dim)));
2315 ran = isl_space_unwrap(isl_space_range(dim));
2316 dom_dom = isl_space_domain(isl_space_copy(dom));
2317 dom_ran = isl_space_range(dom);
2318 ran_dom = isl_space_domain(isl_space_copy(ran));
2319 ran_ran = isl_space_range(ran);
2320 dom = isl_space_join(isl_space_from_domain(dom_dom),
2321 isl_space_from_range(ran_dom));
2322 ran = isl_space_join(isl_space_from_domain(dom_ran),
2323 isl_space_from_range(ran_ran));
2324 return isl_space_join(isl_space_from_domain(isl_space_wrap(dom)),
2325 isl_space_from_range(isl_space_wrap(ran)));
2326error:
2327 isl_space_free(dim);
2328 return NULL((void*)0);
2329}
2330
2331/* Can we apply isl_space_curry to "space"?
2332 * That is, does it have a nested relation in its domain?
2333 */
2334isl_bool isl_space_can_curry(__isl_keep isl_space *space)
2335{
2336 if (!space)
2337 return isl_bool_error;
2338
2339 return !!space->nested[0];
2340}
2341
2342/* Given a space (A -> B) -> C, return the corresponding space
2343 * A -> (B -> C).
2344 */
2345__isl_give isl_space *isl_space_curry(__isl_take isl_space *space)
2346{
2347 isl_space *dom, *ran;
2348 isl_space *dom_dom, *dom_ran;
2349
2350 if (!space)
2351 return NULL((void*)0);
2352
2353 if (!isl_space_can_curry(space))
2354 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be curried"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2355); goto error; } while (0)
2355 "space cannot be curried", goto error)do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be curried"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2355); goto error; } while (0);
2356
2357 dom = isl_space_unwrap(isl_space_domain(isl_space_copy(space)));
2358 ran = isl_space_range(space);
2359 dom_dom = isl_space_domain(isl_space_copy(dom));
2360 dom_ran = isl_space_range(dom);
2361 ran = isl_space_join(isl_space_from_domain(dom_ran),
2362 isl_space_from_range(ran));
2363 return isl_space_join(isl_space_from_domain(dom_dom),
2364 isl_space_from_range(isl_space_wrap(ran)));
2365error:
2366 isl_space_free(space);
2367 return NULL((void*)0);
2368}
2369
2370/* Can isl_space_range_curry be applied to "space"?
2371 * That is, does it have a nested relation in its range,
2372 * the domain of which is itself a nested relation?
2373 */
2374isl_bool isl_space_can_range_curry(__isl_keep isl_space *space)
2375{
2376 isl_bool can;
2377
2378 if (!space)
2379 return isl_bool_error;
2380 can = isl_space_range_is_wrapping(space);
2381 if (can < 0 || !can)
2382 return can;
2383 return isl_space_can_curry(space->nested[1]);
2384}
2385
2386/* Given a space A -> ((B -> C) -> D), return the corresponding space
2387 * A -> (B -> (C -> D)).
2388 */
2389__isl_give isl_space *isl_space_range_curry(__isl_take isl_space *space)
2390{
2391 if (!space)
2392 return NULL((void*)0);
2393
2394 if (!isl_space_can_range_curry(space))
2395 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "space range cannot be curried", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2397); return isl_space_free(space); } while (0)
2396 "space range cannot be curried",do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "space range cannot be curried", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2397); return isl_space_free(space); } while (0)
2397 return isl_space_free(space))do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "space range cannot be curried", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2397); return isl_space_free(space); } while (0);
2398
2399 space = isl_space_cow(space);
2400 if (!space)
2401 return NULL((void*)0);
2402 space->nested[1] = isl_space_curry(space->nested[1]);
2403 if (!space->nested[1])
2404 return isl_space_free(space);
2405
2406 return space;
2407}
2408
2409/* Can we apply isl_space_uncurry to "space"?
2410 * That is, does it have a nested relation in its range?
2411 */
2412isl_bool isl_space_can_uncurry(__isl_keep isl_space *space)
2413{
2414 if (!space)
2415 return isl_bool_error;
2416
2417 return !!space->nested[1];
2418}
2419
2420/* Given a space A -> (B -> C), return the corresponding space
2421 * (A -> B) -> C.
2422 */
2423__isl_give isl_space *isl_space_uncurry(__isl_take isl_space *space)
2424{
2425 isl_space *dom, *ran;
2426 isl_space *ran_dom, *ran_ran;
2427
2428 if (!space)
2429 return NULL((void*)0);
2430
2431 if (!isl_space_can_uncurry(space))
2432 isl_die(space->ctx, isl_error_invalid,do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be uncurried"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2434); return isl_space_free(space); } while (0)
2433 "space cannot be uncurried",do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be uncurried"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2434); return isl_space_free(space); } while (0)
2434 return isl_space_free(space))do { isl_handle_error(space->ctx, isl_error_invalid, "space cannot be uncurried"
, "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2434); return isl_space_free(space); } while (0);
2435
2436 dom = isl_space_domain(isl_space_copy(space));
2437 ran = isl_space_unwrap(isl_space_range(space));
2438 ran_dom = isl_space_domain(isl_space_copy(ran));
2439 ran_ran = isl_space_range(ran);
2440 dom = isl_space_join(isl_space_from_domain(dom),
2441 isl_space_from_range(ran_dom));
2442 return isl_space_join(isl_space_from_domain(isl_space_wrap(dom)),
2443 isl_space_from_range(ran_ran));
2444}
2445
2446isl_bool isl_space_has_named_params(__isl_keep isl_space *space)
2447{
2448 int i;
2449 unsigned off;
2450
2451 if (!space)
21
←
Taking false branch
→
2452 return isl_bool_error;
2453 if (space->nparam == 0)
22
←
Assuming the condition is false
→
23
←
Taking false branch
→
2454 return isl_bool_true;
2455 off = isl_space_offset(space, isl_dim_param);
2456 if (off + space->nparam > space->n_id)
24
←
Taking false branch
→
2457 return isl_bool_false;
2458 for (i = 0; i < space->nparam; ++i)
25
←
Loop condition is true. Entering loop body
→
2459 if (!space->ids[off + i])
26
←
Array access (via field 'ids') results in a null pointer dereference
2460 return isl_bool_false;
2461 return isl_bool_true;
2462}
2463
2464/* Check that "space" has only named parameters, reporting an error
2465 * if it does not.
2466 */
2467isl_stat isl_space_check_named_params(__isl_keep isl_space *space)
2468{
2469 isl_bool named;
2470
2471 named = isl_space_has_named_params(space);
2472 if (named < 0)
2473 return isl_stat_error;
2474 if (!named)
2475 isl_die(isl_space_get_ctx(space), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "unaligned unnamed parameters", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2476); return isl_stat_error; } while (0)
2476 "unaligned unnamed parameters", return isl_stat_error)do { isl_handle_error(isl_space_get_ctx(space), isl_error_invalid
, "unaligned unnamed parameters", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2476); return isl_stat_error; } while (0);
2477
2478 return isl_stat_ok;
2479}
2480
2481/* Align the initial parameters of dim1 to match the order in dim2.
2482 */
2483__isl_give isl_space *isl_space_align_params(__isl_take isl_space *dim1,
2484 __isl_take isl_space *dim2)
2485{
2486 isl_reordering *exp;
2487
2488 if (!isl_space_has_named_params(dim1) || !isl_space_has_named_params(dim2))
19
←
Passing value via 1st parameter 'space'
→
20
←
Calling 'isl_space_has_named_params'
→
2489 isl_die(isl_space_get_ctx(dim1), isl_error_invalid,do { isl_handle_error(isl_space_get_ctx(dim1), isl_error_invalid
, "parameter alignment requires named parameters", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2491); goto error; } while (0)
2490 "parameter alignment requires named parameters",do { isl_handle_error(isl_space_get_ctx(dim1), isl_error_invalid
, "parameter alignment requires named parameters", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2491); goto error; } while (0)
2491 goto error)do { isl_handle_error(isl_space_get_ctx(dim1), isl_error_invalid
, "parameter alignment requires named parameters", "/tmp/buildd/llvm-toolchain-snapshot-5.0~svn306458/tools/polly/lib/External/isl/isl_space.c"
, 2491); goto error; } while (0);
2492
2493 dim2 = isl_space_params(dim2);
2494 exp = isl_parameter_alignment_reordering(dim1, dim2);
2495 exp = isl_reordering_extend_space(exp, dim1);
2496 isl_space_free(dim2);
2497 if (!exp)
2498 return NULL((void*)0);
2499 dim1 = isl_space_copy(exp->dim);
2500 isl_reordering_free(exp);
2501 return dim1;
2502error:
2503 isl_space_free(dim1);
2504 isl_space_free(dim2);
2505 return NULL((void*)0);
2506}
2507
2508/* Given the space of set (domain), construct a space for a map
2509 * with as domain the given space and as range the range of "model".
2510 */
2511__isl_give isl_space *isl_space_extend_domain_with_range(
2512 __isl_take isl_space *space, __isl_take isl_space *model)
2513{
2514 if (!model)
1
Assuming 'model' is non-null
→
2
←
Taking false branch
→
2515 goto error;
2516
2517 space = isl_space_from_domain(space);
2518 space = isl_space_add_dims(space, isl_dim_out,
3
←
Calling 'isl_space_add_dims'
→
14
←
Returning from 'isl_space_add_dims'
→
2519 isl_space_dim(model, isl_dim_out));
2520 if (isl_space_has_tuple_id(model, isl_dim_out))
15
←
Taking false branch
→
2521 space = isl_space_set_tuple_id(space, isl_dim_out,
2522 isl_space_get_tuple_id(model, isl_dim_out));
2523 if (!space)
16
←
Taking false branch
→
2524 goto error;
2525 if (model->nested[1]) {
17
←
Taking true branch
→
2526 isl_space *nested = isl_space_copy(model->nested[1]);
2527 int n_nested, n_space;
2528 nested = isl_space_align_params(nested, isl_space_copy(space));
18
←
Calling 'isl_space_align_params'
→
2529 n_nested = isl_space_dim(nested, isl_dim_param);
2530 n_space = isl_space_dim(space, isl_dim_param);
2531 if (n_nested > n_space)
2532 nested = isl_space_drop_dims(nested, isl_dim_param,
2533 n_space, n_nested - n_space);
2534 if (!nested)
2535 goto error;
2536 space->nested[1] = nested;
2537 }
2538 isl_space_free(model);
2539 return space;
2540error:
2541 isl_space_free(model);
2542 isl_space_free(space);
2543 return NULL((void*)0);
2544}
2545
2546/* Compare the "type" dimensions of two isl_spaces.
2547 *
2548 * The order is fairly arbitrary.
2549 */
2550static int isl_space_cmp_type(__isl_keep isl_space *space1,
2551 __isl_keep isl_space *space2, enum isl_dim_type type)
2552{
2553 int cmp;
2554 isl_space *nested1, *nested2;
2555
2556 if (isl_space_dim(space1, type) != isl_space_dim(space2, type))
2557 return isl_space_dim(space1, type) -
2558 isl_space_dim(space2, type);
2559
2560 cmp = isl_id_cmp(tuple_id(space1, type), tuple_id(space2, type));
2561 if (cmp != 0)
2562 return cmp;
2563
2564 nested1 = nested(space1, type);
2565 nested2 = nested(space2, type);
2566 if (!nested1 != !nested2)
2567 return !nested1 - !nested2;
2568
2569 if (nested1)
2570 return isl_space_cmp(nested1, nested2);
2571
2572 return 0;
2573}
2574
2575/* Compare two isl_spaces.
2576 *
2577 * The order is fairly arbitrary.
2578 */
2579int isl_space_cmp(__isl_keep isl_space *space1, __isl_keep isl_space *space2)
2580{
2581 int i;
2582 int cmp;
2583
2584 if (space1 == space2)
2585 return 0;
2586 if (!space1)
2587 return -1;
2588 if (!space2)
2589 return 1;
2590
2591 cmp = isl_space_cmp_type(space1, space2, isl_dim_param);
2592 if (cmp != 0)
2593 return cmp;
2594 cmp = isl_space_cmp_type(space1, space2, isl_dim_in);
2595 if (cmp != 0)
2596 return cmp;
2597 cmp = isl_space_cmp_type(space1, space2, isl_dim_out);
2598 if (cmp != 0)
2599 return cmp;
2600
2601 if (!space1->ids && !space2->ids)
2602 return 0;
2603
2604 for (i = 0; i < n(space1, isl_dim_param); ++i) {
2605 cmp = isl_id_cmp(get_id(space1, isl_dim_param, i),
2606 get_id(space2, isl_dim_param, i));
2607 if (cmp != 0)
2608 return cmp;
2609 }
2610
2611 return 0;
2612}