File: | build/source/polly/lib/External/isl/isl_map.c |
Warning: | line 10792, column 55 Although the value stored to 'pos' is used in the enclosing expression, the value is never actually read from 'pos' |
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1 | /* |
2 | * Copyright 2008-2009 Katholieke Universiteit Leuven |
3 | * Copyright 2010 INRIA Saclay |
4 | * Copyright 2012-2014 Ecole Normale Superieure |
5 | * Copyright 2014 INRIA Rocquencourt |
6 | * Copyright 2016 INRIA Paris |
7 | * Copyright 2016 Sven Verdoolaege |
8 | * Copyright 2018-2019 Cerebras Systems |
9 | * |
10 | * Use of this software is governed by the MIT license |
11 | * |
12 | * Written by Sven Verdoolaege, K.U.Leuven, Departement |
13 | * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium |
14 | * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite, |
15 | * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France |
16 | * and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France |
17 | * and Inria Paris - Rocquencourt, Domaine de Voluceau - Rocquencourt, |
18 | * B.P. 105 - 78153 Le Chesnay, France |
19 | * and Centre de Recherche Inria de Paris, 2 rue Simone Iff - Voie DQ12, |
20 | * CS 42112, 75589 Paris Cedex 12, France |
21 | * and Cerebras Systems, 175 S San Antonio Rd, Los Altos, CA, USA |
22 | */ |
23 | |
24 | #include <string.h> |
25 | #include <isl_ctx_private.h> |
26 | #include <isl_map_private.h> |
27 | #include <isl_blk.h> |
28 | #include <isl_id_private.h> |
29 | #include <isl/constraint.h> |
30 | #include "isl_space_private.h" |
31 | #include "isl_equalities.h" |
32 | #include <isl_lp_private.h> |
33 | #include <isl_seq.h> |
34 | #include <isl/set.h> |
35 | #include <isl/map.h> |
36 | #include <isl_reordering.h> |
37 | #include "isl_sample.h" |
38 | #include <isl_sort.h> |
39 | #include "isl_tab.h" |
40 | #include <isl/vec.h> |
41 | #include <isl_mat_private.h> |
42 | #include <isl_vec_private.h> |
43 | #include <isl_dim_map.h> |
44 | #include <isl_local_space_private.h> |
45 | #include <isl_aff_private.h> |
46 | #include <isl_options_private.h> |
47 | #include <isl_morph.h> |
48 | #include <isl_val_private.h> |
49 | #include <isl_printer_private.h> |
50 | |
51 | #include <bset_to_bmap.c> |
52 | #include <bset_from_bmap.c> |
53 | #include <set_to_map.c> |
54 | #include <set_from_map.c> |
55 | |
56 | /* Treat "bset" as a basic map. |
57 | * Internally, isl_basic_set is defined to isl_basic_map, so in practice, |
58 | * this function performs a redundant cast. |
59 | */ |
60 | static __isl_keep const isl_basic_map *const_bset_to_bmap( |
61 | __isl_keep const isl_basic_setisl_basic_map *bset) |
62 | { |
63 | return (const isl_basic_map *) bset; |
64 | } |
65 | |
66 | #undef TYPEisl_map |
67 | #define TYPEisl_map isl_basic_map |
68 | #include "has_single_reference_templ.c" |
69 | |
70 | static unsigned pos(__isl_keep isl_space *space, enum isl_dim_type type) |
71 | { |
72 | switch (type) { |
73 | case isl_dim_param: return 1; |
74 | case isl_dim_in: return 1 + space->nparam; |
75 | case isl_dim_out: return 1 + space->nparam + space->n_in; |
76 | default: return 0; |
77 | } |
78 | } |
79 | |
80 | isl_size isl_basic_map_dim(__isl_keep isl_basic_map *bmap, |
81 | enum isl_dim_type type) |
82 | { |
83 | if (!bmap) |
84 | return isl_size_error((int) -1); |
85 | switch (type) { |
86 | case isl_dim_cst: return 1; |
87 | case isl_dim_param: |
88 | case isl_dim_in: |
89 | case isl_dim_out: return isl_space_dim(bmap->dim, type); |
90 | case isl_dim_div: return bmap->n_div; |
91 | case isl_dim_all: return isl_basic_map_total_dim(bmap); |
92 | default: return 0; |
93 | } |
94 | } |
95 | |
96 | /* Return the space of "map". |
97 | */ |
98 | __isl_keep isl_space *isl_map_peek_space(__isl_keep const isl_map *map) |
99 | { |
100 | return map ? map->dim : NULL((void*)0); |
101 | } |
102 | |
103 | /* Return the space of "set". |
104 | */ |
105 | __isl_keep isl_space *isl_set_peek_space(__isl_keep isl_setisl_map *set) |
106 | { |
107 | return isl_map_peek_space(set_to_map(set)); |
108 | } |
109 | |
110 | isl_size isl_map_dim(__isl_keep isl_map *map, enum isl_dim_type type) |
111 | { |
112 | return isl_space_dim(isl_map_peek_space(map), type); |
113 | } |
114 | |
115 | /* Return the dimensionality of the domain (tuple) of the map. |
116 | */ |
117 | isl_size isl_map_domain_tuple_dim(__isl_keep isl_map *map) |
118 | { |
119 | return isl_map_dim(map, isl_dim_in); |
120 | } |
121 | |
122 | /* Return the dimensionality of the range (tuple) of the map. |
123 | */ |
124 | isl_size isl_map_range_tuple_dim(__isl_keep isl_map *map) |
125 | { |
126 | return isl_map_dim(map, isl_dim_out); |
127 | } |
128 | |
129 | isl_size isl_set_dim(__isl_keep isl_setisl_map *set, enum isl_dim_type type) |
130 | { |
131 | return isl_map_dim(set_to_map(set), type); |
132 | } |
133 | |
134 | /* Return the dimensionality of the (tuple of the) set. |
135 | */ |
136 | isl_size isl_set_tuple_dim(__isl_keep isl_setisl_map *set) |
137 | { |
138 | return isl_set_dim(set, isl_dim_set); |
139 | } |
140 | |
141 | /* Return the position of the variables of the given type |
142 | * within the sequence of variables of "bmap". |
143 | */ |
144 | isl_size isl_basic_map_var_offset(__isl_keep isl_basic_map *bmap, |
145 | enum isl_dim_type type) |
146 | { |
147 | isl_space *space; |
148 | |
149 | space = isl_basic_map_peek_space(bmap); |
150 | if (!space) |
151 | return isl_size_error((int) -1); |
152 | |
153 | switch (type) { |
154 | case isl_dim_param: |
155 | case isl_dim_in: |
156 | case isl_dim_out: return isl_space_offset(space, type); |
157 | case isl_dim_div: return isl_space_dim(space, isl_dim_all); |
158 | case isl_dim_cst: |
159 | default: |
160 | isl_die(isl_basic_map_get_ctx(bmap), isl_error_invalid,do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid dimension type", "polly/lib/External/isl/isl_map.c" , 161); return ((int) -1); } while (0) |
161 | "invalid dimension type", return isl_size_error)do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid dimension type", "polly/lib/External/isl/isl_map.c" , 161); return ((int) -1); } while (0); |
162 | } |
163 | } |
164 | |
165 | /* Return the position of the variables of the given type |
166 | * within the sequence of variables of "bset". |
167 | */ |
168 | isl_size isl_basic_set_var_offset(__isl_keep isl_basic_setisl_basic_map *bset, |
169 | enum isl_dim_type type) |
170 | { |
171 | return isl_basic_map_var_offset(bset_to_bmap(bset), type); |
172 | } |
173 | |
174 | /* Return the position of the coefficients of the variables of the given type |
175 | * within the sequence of coefficients of "bmap". |
176 | */ |
177 | unsigned isl_basic_map_offset(__isl_keep isl_basic_map *bmap, |
178 | enum isl_dim_type type) |
179 | { |
180 | switch (type) { |
181 | case isl_dim_cst: return 0; |
182 | case isl_dim_param: |
183 | case isl_dim_in: |
184 | case isl_dim_out: |
185 | case isl_dim_div: return 1 + isl_basic_map_var_offset(bmap, type); |
186 | default: return 0; |
187 | } |
188 | } |
189 | |
190 | unsigned isl_basic_set_offset(__isl_keep isl_basic_setisl_basic_map *bset, |
191 | enum isl_dim_type type) |
192 | { |
193 | return isl_basic_map_offset(bset, type); |
194 | } |
195 | |
196 | static unsigned map_offset(__isl_keep isl_map *map, enum isl_dim_type type) |
197 | { |
198 | return pos(map->dim, type); |
199 | } |
200 | |
201 | isl_size isl_basic_set_dim(__isl_keep isl_basic_setisl_basic_map *bset, |
202 | enum isl_dim_type type) |
203 | { |
204 | return isl_basic_map_dim(bset, type); |
205 | } |
206 | |
207 | isl_size isl_basic_set_n_dim(__isl_keep isl_basic_setisl_basic_map *bset) |
208 | { |
209 | return isl_basic_set_dim(bset, isl_dim_set); |
210 | } |
211 | |
212 | isl_size isl_basic_set_n_param(__isl_keep isl_basic_setisl_basic_map *bset) |
213 | { |
214 | return isl_basic_set_dim(bset, isl_dim_param); |
215 | } |
216 | |
217 | isl_size isl_basic_set_total_dim(__isl_keep const isl_basic_setisl_basic_map *bset) |
218 | { |
219 | return isl_basic_map_total_dim(const_bset_to_bmap(bset)); |
220 | } |
221 | |
222 | isl_size isl_set_n_dim(__isl_keep isl_setisl_map *set) |
223 | { |
224 | return isl_set_dim(set, isl_dim_set); |
225 | } |
226 | |
227 | isl_size isl_set_n_param(__isl_keep isl_setisl_map *set) |
228 | { |
229 | return isl_set_dim(set, isl_dim_param); |
230 | } |
231 | |
232 | isl_size isl_basic_map_total_dim(__isl_keep const isl_basic_map *bmap) |
233 | { |
234 | isl_size dim; |
235 | |
236 | if (!bmap) |
237 | return isl_size_error((int) -1); |
238 | dim = isl_space_dim(bmap->dim, isl_dim_all); |
239 | if (dim < 0) |
240 | return isl_size_error((int) -1); |
241 | return dim + bmap->n_div; |
242 | } |
243 | |
244 | /* Return the number of equality constraints in the description of "bmap". |
245 | * Return isl_size_error on error. |
246 | */ |
247 | isl_size isl_basic_map_n_equality(__isl_keep isl_basic_map *bmap) |
248 | { |
249 | if (!bmap) |
250 | return isl_size_error((int) -1); |
251 | return bmap->n_eq; |
252 | } |
253 | |
254 | /* Return the number of equality constraints in the description of "bset". |
255 | * Return isl_size_error on error. |
256 | */ |
257 | isl_size isl_basic_set_n_equality(__isl_keep isl_basic_setisl_basic_map *bset) |
258 | { |
259 | return isl_basic_map_n_equality(bset_to_bmap(bset)); |
260 | } |
261 | |
262 | /* Return the number of inequality constraints in the description of "bmap". |
263 | * Return isl_size_error on error. |
264 | */ |
265 | isl_size isl_basic_map_n_inequality(__isl_keep isl_basic_map *bmap) |
266 | { |
267 | if (!bmap) |
268 | return isl_size_error((int) -1); |
269 | return bmap->n_ineq; |
270 | } |
271 | |
272 | /* Return the number of inequality constraints in the description of "bset". |
273 | * Return isl_size_error on error. |
274 | */ |
275 | isl_size isl_basic_set_n_inequality(__isl_keep isl_basic_setisl_basic_map *bset) |
276 | { |
277 | return isl_basic_map_n_inequality(bset_to_bmap(bset)); |
278 | } |
279 | |
280 | /* Do "bmap1" and "bmap2" have the same parameters? |
281 | */ |
282 | static isl_bool isl_basic_map_has_equal_params(__isl_keep isl_basic_map *bmap1, |
283 | __isl_keep isl_basic_map *bmap2) |
284 | { |
285 | isl_space *space1, *space2; |
286 | |
287 | space1 = isl_basic_map_peek_space(bmap1); |
288 | space2 = isl_basic_map_peek_space(bmap2); |
289 | return isl_space_has_equal_params(space1, space2); |
290 | } |
291 | |
292 | /* Do "map1" and "map2" have the same parameters? |
293 | */ |
294 | isl_bool isl_map_has_equal_params(__isl_keep isl_map *map1, |
295 | __isl_keep isl_map *map2) |
296 | { |
297 | isl_space *space1, *space2; |
298 | |
299 | space1 = isl_map_peek_space(map1); |
300 | space2 = isl_map_peek_space(map2); |
301 | return isl_space_has_equal_params(space1, space2); |
302 | } |
303 | |
304 | /* Do "map" and "set" have the same parameters? |
305 | */ |
306 | static isl_bool isl_map_set_has_equal_params(__isl_keep isl_map *map, |
307 | __isl_keep isl_setisl_map *set) |
308 | { |
309 | return isl_map_has_equal_params(map, set_to_map(set)); |
310 | } |
311 | |
312 | /* Is the tuple of type "type" of "bmap" the same as the single tuple of "bset"? |
313 | */ |
314 | static isl_bool isl_basic_map_set_tuple_is_equal(__isl_keep isl_basic_map *bmap, |
315 | enum isl_dim_type type, __isl_keep isl_basic_setisl_basic_map *bset) |
316 | { |
317 | isl_space *bmap_space, *bset_space; |
318 | |
319 | bmap_space = isl_basic_map_peek_space(bmap); |
320 | bset_space = isl_basic_set_peek_space(bset); |
321 | return isl_space_tuple_is_equal(bmap_space, type, |
322 | bset_space, isl_dim_set); |
323 | } |
324 | |
325 | /* Is the tuple of type "type" of "map" the same as the single tuple of "set"? |
326 | */ |
327 | static isl_bool isl_map_set_tuple_is_equal(__isl_keep isl_map *map, |
328 | enum isl_dim_type type, __isl_keep isl_setisl_map *set) |
329 | { |
330 | return isl_map_tuple_is_equal(map, type, set_to_map(set), isl_dim_set); |
331 | } |
332 | |
333 | isl_bool isl_map_compatible_domain(__isl_keep isl_map *map, |
334 | __isl_keep isl_setisl_map *set) |
335 | { |
336 | isl_bool m; |
337 | if (!map || !set) |
338 | return isl_bool_error; |
339 | m = isl_map_has_equal_params(map, set_to_map(set)); |
340 | if (m < 0 || !m) |
341 | return m; |
342 | return isl_map_set_tuple_is_equal(map, isl_dim_in, set); |
343 | } |
344 | |
345 | isl_bool isl_basic_map_compatible_domain(__isl_keep isl_basic_map *bmap, |
346 | __isl_keep isl_basic_setisl_basic_map *bset) |
347 | { |
348 | isl_bool m; |
349 | if (!bmap || !bset) |
350 | return isl_bool_error; |
351 | m = isl_basic_map_has_equal_params(bmap, bset_to_bmap(bset)); |
352 | if (m < 0 || !m) |
353 | return m; |
354 | return isl_basic_map_set_tuple_is_equal(bmap, isl_dim_in, bset); |
355 | } |
356 | |
357 | isl_bool isl_map_compatible_range(__isl_keep isl_map *map, |
358 | __isl_keep isl_setisl_map *set) |
359 | { |
360 | isl_bool m; |
361 | if (!map || !set) |
362 | return isl_bool_error; |
363 | m = isl_map_has_equal_params(map, set_to_map(set)); |
364 | if (m < 0 || !m) |
365 | return m; |
366 | return isl_map_set_tuple_is_equal(map, isl_dim_out, set); |
367 | } |
368 | |
369 | isl_bool isl_basic_map_compatible_range(__isl_keep isl_basic_map *bmap, |
370 | __isl_keep isl_basic_setisl_basic_map *bset) |
371 | { |
372 | isl_bool m; |
373 | if (!bmap || !bset) |
374 | return isl_bool_error; |
375 | m = isl_basic_map_has_equal_params(bmap, bset_to_bmap(bset)); |
376 | if (m < 0 || !m) |
377 | return m; |
378 | return isl_basic_map_set_tuple_is_equal(bmap, isl_dim_out, bset); |
379 | } |
380 | |
381 | isl_ctx *isl_basic_map_get_ctx(__isl_keep isl_basic_map *bmap) |
382 | { |
383 | return bmap ? bmap->ctx : NULL((void*)0); |
384 | } |
385 | |
386 | isl_ctx *isl_basic_set_get_ctx(__isl_keep isl_basic_setisl_basic_map *bset) |
387 | { |
388 | return bset ? bset->ctx : NULL((void*)0); |
389 | } |
390 | |
391 | isl_ctx *isl_map_get_ctx(__isl_keep isl_map *map) |
392 | { |
393 | return map ? map->ctx : NULL((void*)0); |
394 | } |
395 | |
396 | isl_ctx *isl_set_get_ctx(__isl_keep isl_setisl_map *set) |
397 | { |
398 | return set ? set->ctx : NULL((void*)0); |
399 | } |
400 | |
401 | /* Return the space of "bmap". |
402 | */ |
403 | __isl_keep isl_space *isl_basic_map_peek_space( |
404 | __isl_keep const isl_basic_map *bmap) |
405 | { |
406 | return bmap ? bmap->dim : NULL((void*)0); |
407 | } |
408 | |
409 | /* Return the space of "bset". |
410 | */ |
411 | __isl_keep isl_space *isl_basic_set_peek_space(__isl_keep isl_basic_setisl_basic_map *bset) |
412 | { |
413 | return isl_basic_map_peek_space(bset_to_bmap(bset)); |
414 | } |
415 | |
416 | __isl_give isl_space *isl_basic_map_get_space(__isl_keep isl_basic_map *bmap) |
417 | { |
418 | return isl_space_copy(isl_basic_map_peek_space(bmap)); |
419 | } |
420 | |
421 | __isl_give isl_space *isl_basic_set_get_space(__isl_keep isl_basic_setisl_basic_map *bset) |
422 | { |
423 | return isl_basic_map_get_space(bset_to_bmap(bset)); |
424 | } |
425 | |
426 | /* Return the space of "bmap". |
427 | * This may be either a copy or the space itself |
428 | * if there is only one reference to "bmap". |
429 | * This allows the space to be modified inplace |
430 | * if both the basic map and its space have only a single reference. |
431 | * The caller is not allowed to modify "bmap" between this call and |
432 | * a subsequent call to isl_basic_map_restore_space. |
433 | * The only exception is that isl_basic_map_free can be called instead. |
434 | */ |
435 | static __isl_give isl_space *isl_basic_map_take_space( |
436 | __isl_keep isl_basic_map *bmap) |
437 | { |
438 | isl_space *space; |
439 | |
440 | if (!bmap) |
441 | return NULL((void*)0); |
442 | if (bmap->ref != 1) |
443 | return isl_basic_map_get_space(bmap); |
444 | space = bmap->dim; |
445 | bmap->dim = NULL((void*)0); |
446 | return space; |
447 | } |
448 | |
449 | /* Set the space of "bmap" to "space", where the space of "bmap" may be missing |
450 | * due to a preceding call to isl_basic_map_take_space. |
451 | * However, in this case, "bmap" only has a single reference and |
452 | * then the call to isl_basic_map_cow has no effect. |
453 | */ |
454 | static __isl_give isl_basic_map *isl_basic_map_restore_space( |
455 | __isl_take isl_basic_map *bmap, __isl_take isl_space *space) |
456 | { |
457 | if (!bmap || !space) |
458 | goto error; |
459 | |
460 | if (bmap->dim == space) { |
461 | isl_space_free(space); |
462 | return bmap; |
463 | } |
464 | |
465 | bmap = isl_basic_map_cow(bmap); |
466 | if (!bmap) |
467 | goto error; |
468 | isl_space_free(bmap->dim); |
469 | bmap->dim = space; |
470 | |
471 | return bmap; |
472 | error: |
473 | isl_basic_map_free(bmap); |
474 | isl_space_free(space); |
475 | return NULL((void*)0); |
476 | } |
477 | |
478 | /* Extract the divs in "bmap" as a matrix. |
479 | */ |
480 | __isl_give isl_mat *isl_basic_map_get_divs(__isl_keep isl_basic_map *bmap) |
481 | { |
482 | int i; |
483 | isl_ctx *ctx; |
484 | isl_mat *div; |
485 | isl_size v_div; |
486 | unsigned cols; |
487 | |
488 | v_div = isl_basic_map_var_offset(bmap, isl_dim_div); |
489 | if (v_div < 0) |
490 | return NULL((void*)0); |
491 | |
492 | ctx = isl_basic_map_get_ctx(bmap); |
493 | cols = 1 + 1 + v_div + bmap->n_div; |
494 | div = isl_mat_alloc(ctx, bmap->n_div, cols); |
495 | if (!div) |
496 | return NULL((void*)0); |
497 | |
498 | for (i = 0; i < bmap->n_div; ++i) |
499 | isl_seq_cpy(div->row[i], bmap->div[i], cols); |
500 | |
501 | return div; |
502 | } |
503 | |
504 | /* Extract the divs in "bset" as a matrix. |
505 | */ |
506 | __isl_give isl_mat *isl_basic_set_get_divs(__isl_keep isl_basic_setisl_basic_map *bset) |
507 | { |
508 | return isl_basic_map_get_divs(bset); |
509 | } |
510 | |
511 | __isl_give isl_local_space *isl_basic_map_get_local_space( |
512 | __isl_keep isl_basic_map *bmap) |
513 | { |
514 | isl_mat *div; |
515 | |
516 | if (!bmap) |
517 | return NULL((void*)0); |
518 | |
519 | div = isl_basic_map_get_divs(bmap); |
520 | return isl_local_space_alloc_div(isl_space_copy(bmap->dim), div); |
521 | } |
522 | |
523 | __isl_give isl_local_space *isl_basic_set_get_local_space( |
524 | __isl_keep isl_basic_setisl_basic_map *bset) |
525 | { |
526 | return isl_basic_map_get_local_space(bset); |
527 | } |
528 | |
529 | /* For each known div d = floor(f/m), add the constraints |
530 | * |
531 | * f - m d >= 0 |
532 | * -(f-(m-1)) + m d >= 0 |
533 | * |
534 | * Do not finalize the result. |
535 | */ |
536 | static __isl_give isl_basic_map *add_known_div_constraints( |
537 | __isl_take isl_basic_map *bmap) |
538 | { |
539 | int i; |
540 | isl_size n_div; |
541 | |
542 | n_div = isl_basic_map_dim(bmap, isl_dim_div); |
543 | if (n_div < 0) |
544 | return isl_basic_map_free(bmap); |
545 | if (n_div == 0) |
546 | return bmap; |
547 | bmap = isl_basic_map_cow(bmap); |
548 | bmap = isl_basic_map_extend_constraints(bmap, 0, 2 * n_div); |
549 | if (!bmap) |
550 | return NULL((void*)0); |
551 | for (i = 0; i < n_div; ++i) { |
552 | if (isl_int_is_zero(bmap->div[i][0])(isl_sioimath_sgn(*(bmap->div[i][0])) == 0)) |
553 | continue; |
554 | bmap = isl_basic_map_add_div_constraints(bmap, i); |
555 | } |
556 | |
557 | return bmap; |
558 | } |
559 | |
560 | __isl_give isl_basic_map *isl_basic_map_from_local_space( |
561 | __isl_take isl_local_space *ls) |
562 | { |
563 | int i; |
564 | isl_size n_div; |
565 | isl_basic_map *bmap; |
566 | |
567 | n_div = isl_local_space_dim(ls, isl_dim_div); |
568 | if (n_div < 0) |
569 | ls = isl_local_space_free(ls); |
570 | if (!ls) |
571 | return NULL((void*)0); |
572 | |
573 | bmap = isl_basic_map_alloc_space(isl_local_space_get_space(ls), |
574 | n_div, 0, 2 * n_div); |
575 | |
576 | for (i = 0; i < n_div; ++i) |
577 | if (isl_basic_map_alloc_div(bmap) < 0) |
578 | goto error; |
579 | |
580 | for (i = 0; i < n_div; ++i) |
581 | isl_seq_cpy(bmap->div[i], ls->div->row[i], ls->div->n_col); |
582 | bmap = add_known_div_constraints(bmap); |
583 | |
584 | isl_local_space_free(ls); |
585 | return bmap; |
586 | error: |
587 | isl_local_space_free(ls); |
588 | isl_basic_map_free(bmap); |
589 | return NULL((void*)0); |
590 | } |
591 | |
592 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_from_local_space( |
593 | __isl_take isl_local_space *ls) |
594 | { |
595 | return isl_basic_map_from_local_space(ls); |
596 | } |
597 | |
598 | __isl_give isl_space *isl_map_get_space(__isl_keep isl_map *map) |
599 | { |
600 | return isl_space_copy(isl_map_peek_space(map)); |
601 | } |
602 | |
603 | __isl_give isl_space *isl_set_get_space(__isl_keep isl_setisl_map *set) |
604 | { |
605 | if (!set) |
606 | return NULL((void*)0); |
607 | return isl_space_copy(set->dim); |
608 | } |
609 | |
610 | /* Return the space of "map". |
611 | * This may be either a copy or the space itself |
612 | * if there is only one reference to "map". |
613 | * This allows the space to be modified inplace |
614 | * if both the map and its space have only a single reference. |
615 | * The caller is not allowed to modify "map" between this call and |
616 | * a subsequent call to isl_map_restore_space. |
617 | * The only exception is that isl_map_free can be called instead. |
618 | */ |
619 | static __isl_give isl_space *isl_map_take_space(__isl_keep isl_map *map) |
620 | { |
621 | isl_space *space; |
622 | |
623 | if (!map) |
624 | return NULL((void*)0); |
625 | if (map->ref != 1) |
626 | return isl_map_get_space(map); |
627 | space = map->dim; |
628 | map->dim = NULL((void*)0); |
629 | return space; |
630 | } |
631 | |
632 | /* Set the space of "map" to "space", where the space of "map" may be missing |
633 | * due to a preceding call to isl_map_take_space. |
634 | * However, in this case, "map" only has a single reference and |
635 | * then the call to isl_map_cow has no effect. |
636 | */ |
637 | static __isl_give isl_map *isl_map_restore_space(__isl_take isl_map *map, |
638 | __isl_take isl_space *space) |
639 | { |
640 | if (!map || !space) |
641 | goto error; |
642 | |
643 | if (map->dim == space) { |
644 | isl_space_free(space); |
645 | return map; |
646 | } |
647 | |
648 | map = isl_map_cow(map); |
649 | if (!map) |
650 | goto error; |
651 | isl_space_free(map->dim); |
652 | map->dim = space; |
653 | |
654 | return map; |
655 | error: |
656 | isl_map_free(map); |
657 | isl_space_free(space); |
658 | return NULL((void*)0); |
659 | } |
660 | |
661 | __isl_give isl_basic_map *isl_basic_map_set_tuple_name( |
662 | __isl_take isl_basic_map *bmap, enum isl_dim_type type, const char *s) |
663 | { |
664 | isl_space *space; |
665 | |
666 | space = isl_basic_map_take_space(bmap); |
667 | space = isl_space_set_tuple_name(space, type, s); |
668 | bmap = isl_basic_map_restore_space(bmap, space); |
669 | bmap = isl_basic_map_finalize(bmap); |
670 | return bmap; |
671 | } |
672 | |
673 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_set_tuple_name( |
674 | __isl_take isl_basic_setisl_basic_map *bset, const char *s) |
675 | { |
676 | return isl_basic_map_set_tuple_name(bset, isl_dim_set, s); |
677 | } |
678 | |
679 | const char *isl_basic_map_get_tuple_name(__isl_keep isl_basic_map *bmap, |
680 | enum isl_dim_type type) |
681 | { |
682 | return bmap ? isl_space_get_tuple_name(bmap->dim, type) : NULL((void*)0); |
683 | } |
684 | |
685 | __isl_give isl_map *isl_map_set_tuple_name(__isl_take isl_map *map, |
686 | enum isl_dim_type type, const char *s) |
687 | { |
688 | int i; |
689 | isl_space *space; |
690 | |
691 | map = isl_map_cow(map); |
692 | if (!map) |
693 | return NULL((void*)0); |
694 | |
695 | for (i = 0; i < map->n; ++i) { |
696 | map->p[i] = isl_basic_map_set_tuple_name(map->p[i], type, s); |
697 | if (!map->p[i]) |
698 | goto error; |
699 | } |
700 | |
701 | space = isl_map_take_space(map); |
702 | space = isl_space_set_tuple_name(space, type, s); |
703 | map = isl_map_restore_space(map, space); |
704 | |
705 | return map; |
706 | error: |
707 | isl_map_free(map); |
708 | return NULL((void*)0); |
709 | } |
710 | |
711 | /* Replace the identifier of the tuple of type "type" by "id". |
712 | */ |
713 | __isl_give isl_basic_map *isl_basic_map_set_tuple_id( |
714 | __isl_take isl_basic_map *bmap, |
715 | enum isl_dim_type type, __isl_take isl_id *id) |
716 | { |
717 | isl_space *space; |
718 | |
719 | space = isl_basic_map_take_space(bmap); |
720 | space = isl_space_set_tuple_id(space, type, id); |
721 | bmap = isl_basic_map_restore_space(bmap, space); |
722 | bmap = isl_basic_map_finalize(bmap); |
723 | return bmap; |
724 | } |
725 | |
726 | /* Replace the identifier of the tuple by "id". |
727 | */ |
728 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_set_tuple_id( |
729 | __isl_take isl_basic_setisl_basic_map *bset, __isl_take isl_id *id) |
730 | { |
731 | return isl_basic_map_set_tuple_id(bset, isl_dim_set, id); |
732 | } |
733 | |
734 | /* Does the input or output tuple have a name? |
735 | */ |
736 | isl_bool isl_map_has_tuple_name(__isl_keep isl_map *map, enum isl_dim_type type) |
737 | { |
738 | return map ? isl_space_has_tuple_name(map->dim, type) : isl_bool_error; |
739 | } |
740 | |
741 | const char *isl_map_get_tuple_name(__isl_keep isl_map *map, |
742 | enum isl_dim_type type) |
743 | { |
744 | return map ? isl_space_get_tuple_name(map->dim, type) : NULL((void*)0); |
745 | } |
746 | |
747 | __isl_give isl_setisl_map *isl_set_set_tuple_name(__isl_take isl_setisl_map *set, |
748 | const char *s) |
749 | { |
750 | return set_from_map(isl_map_set_tuple_name(set_to_map(set), |
751 | isl_dim_set, s)); |
752 | } |
753 | |
754 | __isl_give isl_map *isl_map_set_tuple_id(__isl_take isl_map *map, |
755 | enum isl_dim_type type, __isl_take isl_id *id) |
756 | { |
757 | isl_space *space; |
758 | |
759 | space = isl_map_take_space(map); |
760 | space = isl_space_set_tuple_id(space, type, id); |
761 | map = isl_map_restore_space(map, space); |
762 | |
763 | return isl_map_reset_space(map, isl_map_get_space(map)); |
764 | } |
765 | |
766 | /* Replace the identifier of the domain tuple of "map" by "id". |
767 | */ |
768 | __isl_give isl_map *isl_map_set_domain_tuple_id(__isl_take isl_map *map, |
769 | __isl_take isl_id *id) |
770 | { |
771 | return isl_map_set_tuple_id(map, isl_dim_in, id); |
772 | } |
773 | |
774 | /* Replace the identifier of the range tuple of "map" by "id". |
775 | */ |
776 | __isl_give isl_map *isl_map_set_range_tuple_id(__isl_take isl_map *map, |
777 | __isl_take isl_id *id) |
778 | { |
779 | return isl_map_set_tuple_id(map, isl_dim_out, id); |
780 | } |
781 | |
782 | __isl_give isl_setisl_map *isl_set_set_tuple_id(__isl_take isl_setisl_map *set, |
783 | __isl_take isl_id *id) |
784 | { |
785 | return isl_map_set_tuple_id(set, isl_dim_set, id); |
786 | } |
787 | |
788 | __isl_give isl_map *isl_map_reset_tuple_id(__isl_take isl_map *map, |
789 | enum isl_dim_type type) |
790 | { |
791 | isl_space *space; |
792 | |
793 | space = isl_map_take_space(map); |
794 | space = isl_space_reset_tuple_id(space, type); |
795 | map = isl_map_restore_space(map, space); |
796 | |
797 | return isl_map_reset_space(map, isl_map_get_space(map)); |
798 | } |
799 | |
800 | __isl_give isl_setisl_map *isl_set_reset_tuple_id(__isl_take isl_setisl_map *set) |
801 | { |
802 | return isl_map_reset_tuple_id(set, isl_dim_set); |
803 | } |
804 | |
805 | isl_bool isl_map_has_tuple_id(__isl_keep isl_map *map, enum isl_dim_type type) |
806 | { |
807 | return map ? isl_space_has_tuple_id(map->dim, type) : isl_bool_error; |
808 | } |
809 | |
810 | /* Does the domain tuple of "map" have an identifier? |
811 | */ |
812 | isl_bool isl_map_has_domain_tuple_id(__isl_keep isl_map *map) |
813 | { |
814 | return isl_map_has_tuple_id(map, isl_dim_in); |
815 | } |
816 | |
817 | /* Does the range tuple of "map" have an identifier? |
818 | */ |
819 | isl_bool isl_map_has_range_tuple_id(__isl_keep isl_map *map) |
820 | { |
821 | return isl_map_has_tuple_id(map, isl_dim_out); |
822 | } |
823 | |
824 | __isl_give isl_id *isl_map_get_tuple_id(__isl_keep isl_map *map, |
825 | enum isl_dim_type type) |
826 | { |
827 | return map ? isl_space_get_tuple_id(map->dim, type) : NULL((void*)0); |
828 | } |
829 | |
830 | /* Return the identifier of the domain tuple of "map", assuming it has one. |
831 | */ |
832 | __isl_give isl_id *isl_map_get_domain_tuple_id(__isl_keep isl_map *map) |
833 | { |
834 | return isl_map_get_tuple_id(map, isl_dim_in); |
835 | } |
836 | |
837 | /* Return the identifier of the range tuple of "map", assuming it has one. |
838 | */ |
839 | __isl_give isl_id *isl_map_get_range_tuple_id(__isl_keep isl_map *map) |
840 | { |
841 | return isl_map_get_tuple_id(map, isl_dim_out); |
842 | } |
843 | |
844 | isl_bool isl_set_has_tuple_id(__isl_keep isl_setisl_map *set) |
845 | { |
846 | return isl_map_has_tuple_id(set, isl_dim_set); |
847 | } |
848 | |
849 | __isl_give isl_id *isl_set_get_tuple_id(__isl_keep isl_setisl_map *set) |
850 | { |
851 | return isl_map_get_tuple_id(set, isl_dim_set); |
852 | } |
853 | |
854 | /* Does the set tuple have a name? |
855 | */ |
856 | isl_bool isl_set_has_tuple_name(__isl_keep isl_setisl_map *set) |
857 | { |
858 | if (!set) |
859 | return isl_bool_error; |
860 | return isl_space_has_tuple_name(set->dim, isl_dim_set); |
861 | } |
862 | |
863 | |
864 | const char *isl_basic_set_get_tuple_name(__isl_keep isl_basic_setisl_basic_map *bset) |
865 | { |
866 | return bset ? isl_space_get_tuple_name(bset->dim, isl_dim_set) : NULL((void*)0); |
867 | } |
868 | |
869 | const char *isl_set_get_tuple_name(__isl_keep isl_setisl_map *set) |
870 | { |
871 | return set ? isl_space_get_tuple_name(set->dim, isl_dim_set) : NULL((void*)0); |
872 | } |
873 | |
874 | const char *isl_basic_map_get_dim_name(__isl_keep isl_basic_map *bmap, |
875 | enum isl_dim_type type, unsigned pos) |
876 | { |
877 | return bmap ? isl_space_get_dim_name(bmap->dim, type, pos) : NULL((void*)0); |
878 | } |
879 | |
880 | const char *isl_basic_set_get_dim_name(__isl_keep isl_basic_setisl_basic_map *bset, |
881 | enum isl_dim_type type, unsigned pos) |
882 | { |
883 | return bset ? isl_space_get_dim_name(bset->dim, type, pos) : NULL((void*)0); |
884 | } |
885 | |
886 | /* Does the given dimension have a name? |
887 | */ |
888 | isl_bool isl_map_has_dim_name(__isl_keep isl_map *map, |
889 | enum isl_dim_type type, unsigned pos) |
890 | { |
891 | if (!map) |
892 | return isl_bool_error; |
893 | return isl_space_has_dim_name(map->dim, type, pos); |
894 | } |
895 | |
896 | const char *isl_map_get_dim_name(__isl_keep isl_map *map, |
897 | enum isl_dim_type type, unsigned pos) |
898 | { |
899 | return map ? isl_space_get_dim_name(map->dim, type, pos) : NULL((void*)0); |
900 | } |
901 | |
902 | const char *isl_set_get_dim_name(__isl_keep isl_setisl_map *set, |
903 | enum isl_dim_type type, unsigned pos) |
904 | { |
905 | return set ? isl_space_get_dim_name(set->dim, type, pos) : NULL((void*)0); |
906 | } |
907 | |
908 | /* Does the given dimension have a name? |
909 | */ |
910 | isl_bool isl_set_has_dim_name(__isl_keep isl_setisl_map *set, |
911 | enum isl_dim_type type, unsigned pos) |
912 | { |
913 | if (!set) |
914 | return isl_bool_error; |
915 | return isl_space_has_dim_name(set->dim, type, pos); |
916 | } |
917 | |
918 | __isl_give isl_basic_map *isl_basic_map_set_dim_name( |
919 | __isl_take isl_basic_map *bmap, |
920 | enum isl_dim_type type, unsigned pos, const char *s) |
921 | { |
922 | isl_space *space; |
923 | |
924 | space = isl_basic_map_take_space(bmap); |
925 | space = isl_space_set_dim_name(space, type, pos, s); |
926 | bmap = isl_basic_map_restore_space(bmap, space); |
927 | return isl_basic_map_finalize(bmap); |
928 | } |
929 | |
930 | __isl_give isl_map *isl_map_set_dim_name(__isl_take isl_map *map, |
931 | enum isl_dim_type type, unsigned pos, const char *s) |
932 | { |
933 | int i; |
934 | isl_space *space; |
935 | |
936 | map = isl_map_cow(map); |
937 | if (!map) |
938 | return NULL((void*)0); |
939 | |
940 | for (i = 0; i < map->n; ++i) { |
941 | map->p[i] = isl_basic_map_set_dim_name(map->p[i], type, pos, s); |
942 | if (!map->p[i]) |
943 | goto error; |
944 | } |
945 | |
946 | space = isl_map_take_space(map); |
947 | space = isl_space_set_dim_name(space, type, pos, s); |
948 | map = isl_map_restore_space(map, space); |
949 | |
950 | return map; |
951 | error: |
952 | isl_map_free(map); |
953 | return NULL((void*)0); |
954 | } |
955 | |
956 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_set_dim_name( |
957 | __isl_take isl_basic_setisl_basic_map *bset, |
958 | enum isl_dim_type type, unsigned pos, const char *s) |
959 | { |
960 | return bset_from_bmap(isl_basic_map_set_dim_name(bset_to_bmap(bset), |
961 | type, pos, s)); |
962 | } |
963 | |
964 | __isl_give isl_setisl_map *isl_set_set_dim_name(__isl_take isl_setisl_map *set, |
965 | enum isl_dim_type type, unsigned pos, const char *s) |
966 | { |
967 | return set_from_map(isl_map_set_dim_name(set_to_map(set), |
968 | type, pos, s)); |
969 | } |
970 | |
971 | isl_bool isl_basic_map_has_dim_id(__isl_keep isl_basic_map *bmap, |
972 | enum isl_dim_type type, unsigned pos) |
973 | { |
974 | if (!bmap) |
975 | return isl_bool_error; |
976 | return isl_space_has_dim_id(bmap->dim, type, pos); |
977 | } |
978 | |
979 | __isl_give isl_id *isl_basic_set_get_dim_id(__isl_keep isl_basic_setisl_basic_map *bset, |
980 | enum isl_dim_type type, unsigned pos) |
981 | { |
982 | return bset ? isl_space_get_dim_id(bset->dim, type, pos) : NULL((void*)0); |
983 | } |
984 | |
985 | isl_bool isl_map_has_dim_id(__isl_keep isl_map *map, |
986 | enum isl_dim_type type, unsigned pos) |
987 | { |
988 | return map ? isl_space_has_dim_id(map->dim, type, pos) : isl_bool_error; |
989 | } |
990 | |
991 | __isl_give isl_id *isl_map_get_dim_id(__isl_keep isl_map *map, |
992 | enum isl_dim_type type, unsigned pos) |
993 | { |
994 | return map ? isl_space_get_dim_id(map->dim, type, pos) : NULL((void*)0); |
995 | } |
996 | |
997 | isl_bool isl_set_has_dim_id(__isl_keep isl_setisl_map *set, |
998 | enum isl_dim_type type, unsigned pos) |
999 | { |
1000 | return isl_map_has_dim_id(set, type, pos); |
1001 | } |
1002 | |
1003 | __isl_give isl_id *isl_set_get_dim_id(__isl_keep isl_setisl_map *set, |
1004 | enum isl_dim_type type, unsigned pos) |
1005 | { |
1006 | return isl_map_get_dim_id(set, type, pos); |
1007 | } |
1008 | |
1009 | __isl_give isl_map *isl_map_set_dim_id(__isl_take isl_map *map, |
1010 | enum isl_dim_type type, unsigned pos, __isl_take isl_id *id) |
1011 | { |
1012 | isl_space *space; |
1013 | |
1014 | space = isl_map_take_space(map); |
1015 | space = isl_space_set_dim_id(space, type, pos, id); |
1016 | map = isl_map_restore_space(map, space); |
1017 | |
1018 | return isl_map_reset_space(map, isl_map_get_space(map)); |
1019 | } |
1020 | |
1021 | __isl_give isl_setisl_map *isl_set_set_dim_id(__isl_take isl_setisl_map *set, |
1022 | enum isl_dim_type type, unsigned pos, __isl_take isl_id *id) |
1023 | { |
1024 | return isl_map_set_dim_id(set, type, pos, id); |
1025 | } |
1026 | |
1027 | int isl_map_find_dim_by_id(__isl_keep isl_map *map, enum isl_dim_type type, |
1028 | __isl_keep isl_id *id) |
1029 | { |
1030 | if (!map) |
1031 | return -1; |
1032 | return isl_space_find_dim_by_id(map->dim, type, id); |
1033 | } |
1034 | |
1035 | int isl_set_find_dim_by_id(__isl_keep isl_setisl_map *set, enum isl_dim_type type, |
1036 | __isl_keep isl_id *id) |
1037 | { |
1038 | return isl_map_find_dim_by_id(set, type, id); |
1039 | } |
1040 | |
1041 | /* Return the position of the dimension of the given type and name |
1042 | * in "bmap". |
1043 | * Return -1 if no such dimension can be found. |
1044 | */ |
1045 | int isl_basic_map_find_dim_by_name(__isl_keep isl_basic_map *bmap, |
1046 | enum isl_dim_type type, const char *name) |
1047 | { |
1048 | if (!bmap) |
1049 | return -1; |
1050 | return isl_space_find_dim_by_name(bmap->dim, type, name); |
1051 | } |
1052 | |
1053 | int isl_map_find_dim_by_name(__isl_keep isl_map *map, enum isl_dim_type type, |
1054 | const char *name) |
1055 | { |
1056 | if (!map) |
1057 | return -1; |
1058 | return isl_space_find_dim_by_name(map->dim, type, name); |
1059 | } |
1060 | |
1061 | int isl_set_find_dim_by_name(__isl_keep isl_setisl_map *set, enum isl_dim_type type, |
1062 | const char *name) |
1063 | { |
1064 | return isl_map_find_dim_by_name(set, type, name); |
1065 | } |
1066 | |
1067 | /* Check whether equality i of bset is a pure stride constraint |
1068 | * on a single dimension, i.e., of the form |
1069 | * |
1070 | * v = k e |
1071 | * |
1072 | * with k a constant and e an existentially quantified variable. |
1073 | */ |
1074 | isl_bool isl_basic_set_eq_is_stride(__isl_keep isl_basic_setisl_basic_map *bset, int i) |
1075 | { |
1076 | isl_size nparam; |
1077 | isl_size d; |
1078 | isl_size n_div; |
1079 | int pos1; |
1080 | int pos2; |
1081 | |
1082 | nparam = isl_basic_set_dim(bset, isl_dim_param); |
1083 | d = isl_basic_set_dim(bset, isl_dim_set); |
1084 | n_div = isl_basic_set_dim(bset, isl_dim_div); |
1085 | if (nparam < 0 || d < 0 || n_div < 0) |
1086 | return isl_bool_error; |
1087 | |
1088 | if (!isl_int_is_zero(bset->eq[i][0])(isl_sioimath_sgn(*(bset->eq[i][0])) == 0)) |
1089 | return isl_bool_false; |
1090 | |
1091 | if (isl_seq_first_non_zero(bset->eq[i] + 1, nparam) != -1) |
1092 | return isl_bool_false; |
1093 | pos1 = isl_seq_first_non_zero(bset->eq[i] + 1 + nparam, d); |
1094 | if (pos1 == -1) |
1095 | return isl_bool_false; |
1096 | if (isl_seq_first_non_zero(bset->eq[i] + 1 + nparam + pos1 + 1, |
1097 | d - pos1 - 1) != -1) |
1098 | return isl_bool_false; |
1099 | |
1100 | pos2 = isl_seq_first_non_zero(bset->eq[i] + 1 + nparam + d, n_div); |
1101 | if (pos2 == -1) |
1102 | return isl_bool_false; |
1103 | if (isl_seq_first_non_zero(bset->eq[i] + 1 + nparam + d + pos2 + 1, |
1104 | n_div - pos2 - 1) != -1) |
1105 | return isl_bool_false; |
1106 | if (!isl_int_is_one(bset->eq[i][1 + nparam + pos1])(isl_sioimath_cmp_si(*(bset->eq[i][1 + nparam + pos1]), 1) == 0) && |
1107 | !isl_int_is_negone(bset->eq[i][1 + nparam + pos1])(isl_sioimath_cmp_si(*(bset->eq[i][1 + nparam + pos1]), -1 ) == 0)) |
1108 | return isl_bool_false; |
1109 | |
1110 | return isl_bool_true; |
1111 | } |
1112 | |
1113 | /* Reset the user pointer on all identifiers of parameters and tuples |
1114 | * of the space of "map". |
1115 | */ |
1116 | __isl_give isl_map *isl_map_reset_user(__isl_take isl_map *map) |
1117 | { |
1118 | isl_space *space; |
1119 | |
1120 | space = isl_map_get_space(map); |
1121 | space = isl_space_reset_user(space); |
1122 | map = isl_map_reset_space(map, space); |
1123 | |
1124 | return map; |
1125 | } |
1126 | |
1127 | /* Reset the user pointer on all identifiers of parameters and tuples |
1128 | * of the space of "set". |
1129 | */ |
1130 | __isl_give isl_setisl_map *isl_set_reset_user(__isl_take isl_setisl_map *set) |
1131 | { |
1132 | return isl_map_reset_user(set); |
1133 | } |
1134 | |
1135 | isl_bool isl_basic_map_is_rational(__isl_keep isl_basic_map *bmap) |
1136 | { |
1137 | if (!bmap) |
1138 | return isl_bool_error; |
1139 | return ISL_F_ISSET(bmap, ISL_BASIC_MAP_RATIONAL)(!!(((bmap)->flags) & ((1 << 4)))); |
1140 | } |
1141 | |
1142 | /* Has "map" been marked as a rational map? |
1143 | * In particular, have all basic maps in "map" been marked this way? |
1144 | * An empty map is not considered to be rational. |
1145 | * Maps where only some of the basic maps are marked rational |
1146 | * are not allowed. |
1147 | */ |
1148 | isl_bool isl_map_is_rational(__isl_keep isl_map *map) |
1149 | { |
1150 | int i; |
1151 | isl_bool rational; |
1152 | |
1153 | if (!map) |
1154 | return isl_bool_error; |
1155 | if (map->n == 0) |
1156 | return isl_bool_false; |
1157 | rational = isl_basic_map_is_rational(map->p[0]); |
1158 | if (rational < 0) |
1159 | return rational; |
1160 | for (i = 1; i < map->n; ++i) { |
1161 | isl_bool rational_i; |
1162 | |
1163 | rational_i = isl_basic_map_is_rational(map->p[i]); |
1164 | if (rational_i < 0) |
1165 | return rational_i; |
1166 | if (rational != rational_i) |
1167 | isl_die(isl_map_get_ctx(map), isl_error_unsupported,do { isl_handle_error(isl_map_get_ctx(map), isl_error_unsupported , "mixed rational and integer basic maps " "not supported", "polly/lib/External/isl/isl_map.c" , 1169); return isl_bool_error; } while (0) |
1168 | "mixed rational and integer basic maps "do { isl_handle_error(isl_map_get_ctx(map), isl_error_unsupported , "mixed rational and integer basic maps " "not supported", "polly/lib/External/isl/isl_map.c" , 1169); return isl_bool_error; } while (0) |
1169 | "not supported", return isl_bool_error)do { isl_handle_error(isl_map_get_ctx(map), isl_error_unsupported , "mixed rational and integer basic maps " "not supported", "polly/lib/External/isl/isl_map.c" , 1169); return isl_bool_error; } while (0); |
1170 | } |
1171 | |
1172 | return rational; |
1173 | } |
1174 | |
1175 | /* Has "set" been marked as a rational set? |
1176 | * In particular, have all basic set in "set" been marked this way? |
1177 | * An empty set is not considered to be rational. |
1178 | * Sets where only some of the basic sets are marked rational |
1179 | * are not allowed. |
1180 | */ |
1181 | isl_bool isl_set_is_rational(__isl_keep isl_setisl_map *set) |
1182 | { |
1183 | return isl_map_is_rational(set); |
1184 | } |
1185 | |
1186 | int isl_basic_set_is_rational(__isl_keep isl_basic_setisl_basic_map *bset) |
1187 | { |
1188 | return isl_basic_map_is_rational(bset); |
1189 | } |
1190 | |
1191 | /* Does "bmap" contain any rational points? |
1192 | * |
1193 | * If "bmap" has an equality for each dimension, equating the dimension |
1194 | * to an integer constant, then it has no rational points, even if it |
1195 | * is marked as rational. |
1196 | */ |
1197 | isl_bool isl_basic_map_has_rational(__isl_keep isl_basic_map *bmap) |
1198 | { |
1199 | isl_bool has_rational = isl_bool_true; |
1200 | isl_size total; |
1201 | |
1202 | if (!bmap) |
1203 | return isl_bool_error; |
1204 | if (isl_basic_map_plain_is_empty(bmap)) |
1205 | return isl_bool_false; |
1206 | if (!isl_basic_map_is_rational(bmap)) |
1207 | return isl_bool_false; |
1208 | bmap = isl_basic_map_copy(bmap); |
1209 | bmap = isl_basic_map_implicit_equalities(bmap); |
1210 | total = isl_basic_map_dim(bmap, isl_dim_all); |
1211 | if (total < 0) |
1212 | return isl_bool_error; |
1213 | if (bmap->n_eq == total) { |
1214 | int i, j; |
1215 | for (i = 0; i < bmap->n_eq; ++i) { |
1216 | j = isl_seq_first_non_zero(bmap->eq[i] + 1, total); |
1217 | if (j < 0) |
1218 | break; |
1219 | if (!isl_int_is_one(bmap->eq[i][1 + j])(isl_sioimath_cmp_si(*(bmap->eq[i][1 + j]), 1) == 0) && |
1220 | !isl_int_is_negone(bmap->eq[i][1 + j])(isl_sioimath_cmp_si(*(bmap->eq[i][1 + j]), -1) == 0)) |
1221 | break; |
1222 | j = isl_seq_first_non_zero(bmap->eq[i] + 1 + j + 1, |
1223 | total - j - 1); |
1224 | if (j >= 0) |
1225 | break; |
1226 | } |
1227 | if (i == bmap->n_eq) |
1228 | has_rational = isl_bool_false; |
1229 | } |
1230 | isl_basic_map_free(bmap); |
1231 | |
1232 | return has_rational; |
1233 | } |
1234 | |
1235 | /* Does "map" contain any rational points? |
1236 | */ |
1237 | isl_bool isl_map_has_rational(__isl_keep isl_map *map) |
1238 | { |
1239 | int i; |
1240 | isl_bool has_rational; |
1241 | |
1242 | if (!map) |
1243 | return isl_bool_error; |
1244 | for (i = 0; i < map->n; ++i) { |
1245 | has_rational = isl_basic_map_has_rational(map->p[i]); |
1246 | if (has_rational < 0 || has_rational) |
1247 | return has_rational; |
1248 | } |
1249 | return isl_bool_false; |
1250 | } |
1251 | |
1252 | /* Does "set" contain any rational points? |
1253 | */ |
1254 | isl_bool isl_set_has_rational(__isl_keep isl_setisl_map *set) |
1255 | { |
1256 | return isl_map_has_rational(set); |
1257 | } |
1258 | |
1259 | /* Is this basic set a parameter domain? |
1260 | */ |
1261 | isl_bool isl_basic_set_is_params(__isl_keep isl_basic_setisl_basic_map *bset) |
1262 | { |
1263 | if (!bset) |
1264 | return isl_bool_error; |
1265 | return isl_space_is_params(bset->dim); |
1266 | } |
1267 | |
1268 | /* Is this set a parameter domain? |
1269 | */ |
1270 | isl_bool isl_set_is_params(__isl_keep isl_setisl_map *set) |
1271 | { |
1272 | if (!set) |
1273 | return isl_bool_error; |
1274 | return isl_space_is_params(set->dim); |
1275 | } |
1276 | |
1277 | /* Is this map actually a parameter domain? |
1278 | * Users should never call this function. Outside of isl, |
1279 | * a map can never be a parameter domain. |
1280 | */ |
1281 | isl_bool isl_map_is_params(__isl_keep isl_map *map) |
1282 | { |
1283 | if (!map) |
1284 | return isl_bool_error; |
1285 | return isl_space_is_params(map->dim); |
1286 | } |
1287 | |
1288 | static __isl_give isl_basic_map *basic_map_init(isl_ctx *ctx, |
1289 | __isl_take isl_basic_map *bmap, unsigned extra, |
1290 | unsigned n_eq, unsigned n_ineq) |
1291 | { |
1292 | int i; |
1293 | isl_space *space = isl_basic_map_peek_space(bmap); |
1294 | isl_size n_var = isl_space_dim(space, isl_dim_all); |
1295 | size_t row_size = 1 + n_var + extra; |
1296 | |
1297 | bmap->ctx = ctx; |
1298 | isl_ctx_ref(ctx); |
1299 | |
1300 | if (n_var < 0) |
1301 | return isl_basic_map_free(bmap); |
1302 | |
1303 | bmap->block = isl_blk_alloc(ctx, (n_ineq + n_eq) * row_size); |
1304 | if (isl_blk_is_error(bmap->block)) |
1305 | goto error; |
1306 | |
1307 | bmap->ineq = isl_alloc_array(ctx, isl_int *, n_ineq + n_eq)((isl_int * *)isl_malloc_or_die(ctx, (n_ineq + n_eq)*sizeof(isl_int *))); |
1308 | if ((n_ineq + n_eq) && !bmap->ineq) |
1309 | goto error; |
1310 | |
1311 | if (extra == 0) { |
1312 | bmap->block2 = isl_blk_empty(); |
1313 | bmap->div = NULL((void*)0); |
1314 | } else { |
1315 | bmap->block2 = isl_blk_alloc(ctx, extra * (1 + row_size)); |
1316 | if (isl_blk_is_error(bmap->block2)) |
1317 | goto error; |
1318 | |
1319 | bmap->div = isl_alloc_array(ctx, isl_int *, extra)((isl_int * *)isl_malloc_or_die(ctx, (extra)*sizeof(isl_int * ))); |
1320 | if (!bmap->div) |
1321 | goto error; |
1322 | } |
1323 | |
1324 | for (i = 0; i < n_ineq + n_eq; ++i) |
1325 | bmap->ineq[i] = bmap->block.data + i * row_size; |
1326 | |
1327 | for (i = 0; i < extra; ++i) |
1328 | bmap->div[i] = bmap->block2.data + i * (1 + row_size); |
1329 | |
1330 | bmap->ref = 1; |
1331 | bmap->flags = 0; |
1332 | bmap->c_size = n_eq + n_ineq; |
1333 | bmap->eq = bmap->ineq + n_ineq; |
1334 | bmap->extra = extra; |
1335 | bmap->n_eq = 0; |
1336 | bmap->n_ineq = 0; |
1337 | bmap->n_div = 0; |
1338 | bmap->sample = NULL((void*)0); |
1339 | |
1340 | return bmap; |
1341 | error: |
1342 | isl_basic_map_free(bmap); |
1343 | return NULL((void*)0); |
1344 | } |
1345 | |
1346 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_alloc(isl_ctx *ctx, |
1347 | unsigned nparam, unsigned dim, unsigned extra, |
1348 | unsigned n_eq, unsigned n_ineq) |
1349 | { |
1350 | struct isl_basic_map *bmap; |
1351 | isl_space *space; |
1352 | |
1353 | space = isl_space_set_alloc(ctx, nparam, dim); |
1354 | if (!space) |
1355 | return NULL((void*)0); |
1356 | |
1357 | bmap = isl_basic_map_alloc_space(space, extra, n_eq, n_ineq); |
1358 | return bset_from_bmap(bmap); |
1359 | } |
1360 | |
1361 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_alloc_space(__isl_take isl_space *space, |
1362 | unsigned extra, unsigned n_eq, unsigned n_ineq) |
1363 | { |
1364 | struct isl_basic_map *bmap; |
1365 | if (!space) |
1366 | return NULL((void*)0); |
1367 | isl_assert(space->ctx, space->n_in == 0, goto error)do { if (space->n_in == 0) break; do { isl_handle_error(space ->ctx, isl_error_unknown, "Assertion \"" "space->n_in == 0" "\" failed", "polly/lib/External/isl/isl_map.c", 1367); goto error; } while (0); } while (0); |
1368 | bmap = isl_basic_map_alloc_space(space, extra, n_eq, n_ineq); |
1369 | return bset_from_bmap(bmap); |
1370 | error: |
1371 | isl_space_free(space); |
1372 | return NULL((void*)0); |
1373 | } |
1374 | |
1375 | __isl_give isl_basic_map *isl_basic_map_alloc_space(__isl_take isl_space *space, |
1376 | unsigned extra, unsigned n_eq, unsigned n_ineq) |
1377 | { |
1378 | struct isl_basic_map *bmap; |
1379 | |
1380 | if (!space) |
1381 | return NULL((void*)0); |
1382 | bmap = isl_calloc_type(space->ctx, struct isl_basic_map)((struct isl_basic_map *)isl_calloc_or_die(space->ctx, 1, sizeof (struct isl_basic_map))); |
1383 | if (!bmap) |
1384 | goto error; |
1385 | bmap->dim = space; |
1386 | |
1387 | return basic_map_init(space->ctx, bmap, extra, n_eq, n_ineq); |
1388 | error: |
1389 | isl_space_free(space); |
1390 | return NULL((void*)0); |
1391 | } |
1392 | |
1393 | __isl_give isl_basic_map *isl_basic_map_alloc(isl_ctx *ctx, |
1394 | unsigned nparam, unsigned in, unsigned out, unsigned extra, |
1395 | unsigned n_eq, unsigned n_ineq) |
1396 | { |
1397 | struct isl_basic_map *bmap; |
1398 | isl_space *space; |
1399 | |
1400 | space = isl_space_alloc(ctx, nparam, in, out); |
1401 | if (!space) |
1402 | return NULL((void*)0); |
1403 | |
1404 | bmap = isl_basic_map_alloc_space(space, extra, n_eq, n_ineq); |
1405 | return bmap; |
1406 | } |
1407 | |
1408 | static __isl_give isl_basic_map *dup_constraints(__isl_take isl_basic_map *dst, |
1409 | __isl_keep isl_basic_map *src) |
1410 | { |
1411 | int i; |
1412 | isl_size total = isl_basic_map_dim(src, isl_dim_all); |
1413 | |
1414 | if (!dst || total < 0) |
1415 | return isl_basic_map_free(dst); |
1416 | |
1417 | for (i = 0; i < src->n_eq; ++i) { |
1418 | int j = isl_basic_map_alloc_equality(dst); |
1419 | if (j < 0) |
1420 | return isl_basic_map_free(dst); |
1421 | isl_seq_cpy(dst->eq[j], src->eq[i], 1+total); |
1422 | } |
1423 | |
1424 | for (i = 0; i < src->n_ineq; ++i) { |
1425 | int j = isl_basic_map_alloc_inequality(dst); |
1426 | if (j < 0) |
1427 | return isl_basic_map_free(dst); |
1428 | isl_seq_cpy(dst->ineq[j], src->ineq[i], 1+total); |
1429 | } |
1430 | |
1431 | for (i = 0; i < src->n_div; ++i) { |
1432 | int j = isl_basic_map_alloc_div(dst); |
1433 | if (j < 0) |
1434 | return isl_basic_map_free(dst); |
1435 | isl_seq_cpy(dst->div[j], src->div[i], 1+1+total); |
1436 | } |
1437 | ISL_F_SET(dst, ISL_BASIC_SET_FINAL)(((dst)->flags) |= ((1 << 0))); |
1438 | return dst; |
1439 | } |
1440 | |
1441 | __isl_give isl_basic_map *isl_basic_map_dup(__isl_keep isl_basic_map *bmap) |
1442 | { |
1443 | struct isl_basic_map *dup; |
1444 | |
1445 | if (!bmap) |
1446 | return NULL((void*)0); |
1447 | dup = isl_basic_map_alloc_space(isl_space_copy(bmap->dim), |
1448 | bmap->n_div, bmap->n_eq, bmap->n_ineq); |
1449 | dup = dup_constraints(dup, bmap); |
1450 | if (!dup) |
1451 | return NULL((void*)0); |
1452 | dup->flags = bmap->flags; |
1453 | dup->sample = isl_vec_copy(bmap->sample); |
1454 | return dup; |
1455 | } |
1456 | |
1457 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_dup(__isl_keep isl_basic_setisl_basic_map *bset) |
1458 | { |
1459 | struct isl_basic_map *dup; |
1460 | |
1461 | dup = isl_basic_map_dup(bset_to_bmap(bset)); |
1462 | return bset_from_bmap(dup); |
1463 | } |
1464 | |
1465 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_copy(__isl_keep isl_basic_setisl_basic_map *bset) |
1466 | { |
1467 | return bset_from_bmap(isl_basic_map_copy(bset_to_bmap(bset))); |
1468 | } |
1469 | |
1470 | __isl_give isl_setisl_map *isl_set_copy(__isl_keep isl_setisl_map *set) |
1471 | { |
1472 | if (!set) |
1473 | return NULL((void*)0); |
1474 | |
1475 | set->ref++; |
1476 | return set; |
1477 | } |
1478 | |
1479 | __isl_give isl_basic_map *isl_basic_map_copy(__isl_keep isl_basic_map *bmap) |
1480 | { |
1481 | if (!bmap) |
1482 | return NULL((void*)0); |
1483 | |
1484 | if (ISL_F_ISSET(bmap, ISL_BASIC_SET_FINAL)(!!(((bmap)->flags) & ((1 << 0))))) { |
1485 | bmap->ref++; |
1486 | return bmap; |
1487 | } |
1488 | bmap = isl_basic_map_dup(bmap); |
1489 | if (bmap) |
1490 | ISL_F_SET(bmap, ISL_BASIC_SET_FINAL)(((bmap)->flags) |= ((1 << 0))); |
1491 | return bmap; |
1492 | } |
1493 | |
1494 | __isl_give isl_map *isl_map_copy(__isl_keep isl_map *map) |
1495 | { |
1496 | if (!map) |
1497 | return NULL((void*)0); |
1498 | |
1499 | map->ref++; |
1500 | return map; |
1501 | } |
1502 | |
1503 | __isl_null isl_basic_map *isl_basic_map_free(__isl_take isl_basic_map *bmap) |
1504 | { |
1505 | if (!bmap) |
1506 | return NULL((void*)0); |
1507 | |
1508 | if (--bmap->ref > 0) |
1509 | return NULL((void*)0); |
1510 | |
1511 | isl_ctx_deref(bmap->ctx); |
1512 | free(bmap->div); |
1513 | isl_blk_free(bmap->ctx, bmap->block2); |
1514 | free(bmap->ineq); |
1515 | isl_blk_free(bmap->ctx, bmap->block); |
1516 | isl_vec_free(bmap->sample); |
1517 | isl_space_free(bmap->dim); |
1518 | free(bmap); |
1519 | |
1520 | return NULL((void*)0); |
1521 | } |
1522 | |
1523 | __isl_null isl_basic_setisl_basic_map *isl_basic_set_free(__isl_take isl_basic_setisl_basic_map *bset) |
1524 | { |
1525 | return isl_basic_map_free(bset_to_bmap(bset)); |
1526 | } |
1527 | |
1528 | static int room_for_con(__isl_keep isl_basic_map *bmap, unsigned n) |
1529 | { |
1530 | return bmap->n_eq + bmap->n_ineq + n <= bmap->c_size; |
1531 | } |
1532 | |
1533 | /* Check that "bset" does not involve any parameters. |
1534 | */ |
1535 | isl_stat isl_basic_set_check_no_params(__isl_keep isl_basic_setisl_basic_map *bset) |
1536 | { |
1537 | isl_size nparam; |
1538 | |
1539 | nparam = isl_basic_set_dim(bset, isl_dim_param); |
1540 | if (nparam < 0) |
1541 | return isl_stat_error; |
1542 | if (nparam != 0) |
1543 | isl_die(isl_basic_set_get_ctx(bset), isl_error_invalid,do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "basic set should not have any parameters", "polly/lib/External/isl/isl_map.c" , 1545); return isl_stat_error; } while (0) |
1544 | "basic set should not have any parameters",do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "basic set should not have any parameters", "polly/lib/External/isl/isl_map.c" , 1545); return isl_stat_error; } while (0) |
1545 | return isl_stat_error)do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "basic set should not have any parameters", "polly/lib/External/isl/isl_map.c" , 1545); return isl_stat_error; } while (0); |
1546 | return isl_stat_ok; |
1547 | } |
1548 | |
1549 | /* Check that "bset" does not involve any local variables. |
1550 | */ |
1551 | isl_stat isl_basic_set_check_no_locals(__isl_keep isl_basic_setisl_basic_map *bset) |
1552 | { |
1553 | isl_size n_div; |
1554 | |
1555 | n_div = isl_basic_set_dim(bset, isl_dim_div); |
1556 | if (n_div < 0) |
1557 | return isl_stat_error; |
1558 | if (n_div != 0) |
1559 | isl_die(isl_basic_set_get_ctx(bset), isl_error_invalid,do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "basic set should not have any local variables", "polly/lib/External/isl/isl_map.c" , 1561); return isl_stat_error; } while (0) |
1560 | "basic set should not have any local variables",do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "basic set should not have any local variables", "polly/lib/External/isl/isl_map.c" , 1561); return isl_stat_error; } while (0) |
1561 | return isl_stat_error)do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "basic set should not have any local variables", "polly/lib/External/isl/isl_map.c" , 1561); return isl_stat_error; } while (0); |
1562 | return isl_stat_ok; |
1563 | } |
1564 | |
1565 | #undef TYPEisl_map |
1566 | #define TYPEisl_map isl_map |
1567 | |
1568 | #include "isl_check_named_params_templ.c" |
1569 | |
1570 | #undef TYPEisl_map |
1571 | #define TYPEisl_map isl_basic_map |
1572 | |
1573 | static |
1574 | #include "isl_check_named_params_templ.c" |
1575 | |
1576 | /* Check that "bmap1" and "bmap2" have the same parameters, |
1577 | * reporting an error if they do not. |
1578 | */ |
1579 | static isl_stat isl_basic_map_check_equal_params( |
1580 | __isl_keep isl_basic_map *bmap1, __isl_keep isl_basic_map *bmap2) |
1581 | { |
1582 | isl_bool match; |
1583 | |
1584 | match = isl_basic_map_has_equal_params(bmap1, bmap2); |
1585 | if (match < 0) |
1586 | return isl_stat_error; |
1587 | if (!match) |
1588 | isl_die(isl_basic_map_get_ctx(bmap1), isl_error_invalid,do { isl_handle_error(isl_basic_map_get_ctx(bmap1), isl_error_invalid , "parameters don't match", "polly/lib/External/isl/isl_map.c" , 1589); return isl_stat_error; } while (0) |
1589 | "parameters don't match", return isl_stat_error)do { isl_handle_error(isl_basic_map_get_ctx(bmap1), isl_error_invalid , "parameters don't match", "polly/lib/External/isl/isl_map.c" , 1589); return isl_stat_error; } while (0); |
1590 | return isl_stat_ok; |
1591 | } |
1592 | |
1593 | #undef TYPEisl_map |
1594 | #define TYPEisl_map isl_map |
1595 | |
1596 | #include "isl_align_params_bin_templ.c" |
1597 | |
1598 | #undef SUFFIX |
1599 | #define SUFFIX set |
1600 | #undef ARG1isl_map |
1601 | #define ARG1isl_map isl_map |
1602 | #undef ARG2isl_map |
1603 | #define ARG2isl_map isl_setisl_map |
1604 | |
1605 | #include "isl_align_params_templ.c" |
1606 | |
1607 | isl_bool isl_map_align_params_map_map_and_test(__isl_keep isl_map *map1, |
1608 | __isl_keep isl_map *map2, |
1609 | isl_bool (*fn)(__isl_keep isl_map *map1, __isl_keep isl_map *map2)) |
1610 | { |
1611 | isl_bool r; |
1612 | |
1613 | if (!map1 || !map2) |
1614 | return isl_bool_error; |
1615 | if (isl_map_has_equal_params(map1, map2)) |
1616 | return fn(map1, map2); |
1617 | if (isl_map_check_named_params(map1) < 0) |
1618 | return isl_bool_error; |
1619 | if (isl_map_check_named_params(map2) < 0) |
1620 | return isl_bool_error; |
1621 | map1 = isl_map_copy(map1); |
1622 | map2 = isl_map_copy(map2); |
1623 | map1 = isl_map_align_params(map1, isl_map_get_space(map2)); |
1624 | map2 = isl_map_align_params(map2, isl_map_get_space(map1)); |
1625 | r = fn(map1, map2); |
1626 | isl_map_free(map1); |
1627 | isl_map_free(map2); |
1628 | return r; |
1629 | } |
1630 | |
1631 | int isl_basic_map_alloc_equality(__isl_keep isl_basic_map *bmap) |
1632 | { |
1633 | isl_size total; |
1634 | struct isl_ctx *ctx; |
1635 | |
1636 | total = isl_basic_map_dim(bmap, isl_dim_all); |
1637 | if (total < 0) |
1638 | return -1; |
1639 | ctx = bmap->ctx; |
1640 | isl_assert(ctx, room_for_con(bmap, 1), return -1)do { if (room_for_con(bmap, 1)) break; do { isl_handle_error( ctx, isl_error_unknown, "Assertion \"" "room_for_con(bmap, 1)" "\" failed", "polly/lib/External/isl/isl_map.c", 1640); return -1; } while (0); } while (0); |
1641 | isl_assert(ctx, (bmap->eq - bmap->ineq) + bmap->n_eq <= bmap->c_size,do { if ((bmap->eq - bmap->ineq) + bmap->n_eq <= bmap ->c_size) break; do { isl_handle_error(ctx, isl_error_unknown , "Assertion \"" "(bmap->eq - bmap->ineq) + bmap->n_eq <= bmap->c_size" "\" failed", "polly/lib/External/isl/isl_map.c", 1642); return -1; } while (0); } while (0) |
1642 | return -1)do { if ((bmap->eq - bmap->ineq) + bmap->n_eq <= bmap ->c_size) break; do { isl_handle_error(ctx, isl_error_unknown , "Assertion \"" "(bmap->eq - bmap->ineq) + bmap->n_eq <= bmap->c_size" "\" failed", "polly/lib/External/isl/isl_map.c", 1642); return -1; } while (0); } while (0); |
1643 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NO_REDUNDANT)(((bmap)->flags) &= ~((1 << 3))); |
1644 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NO_IMPLICIT)(((bmap)->flags) &= ~((1 << 2))); |
1645 | ISL_F_CLR(bmap, ISL_BASIC_MAP_ALL_EQUALITIES)(((bmap)->flags) &= ~((1 << 7))); |
1646 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NORMALIZED_DIVS)(((bmap)->flags) &= ~((1 << 6))); |
1647 | if ((bmap->eq - bmap->ineq) + bmap->n_eq == bmap->c_size) { |
1648 | isl_int *t; |
1649 | int j = isl_basic_map_alloc_inequality(bmap); |
1650 | if (j < 0) |
1651 | return -1; |
1652 | t = bmap->ineq[j]; |
1653 | bmap->ineq[j] = bmap->ineq[bmap->n_ineq - 1]; |
1654 | bmap->ineq[bmap->n_ineq - 1] = bmap->eq[-1]; |
1655 | bmap->eq[-1] = t; |
1656 | bmap->n_eq++; |
1657 | bmap->n_ineq--; |
1658 | bmap->eq--; |
1659 | return 0; |
1660 | } |
1661 | isl_seq_clr(bmap->eq[bmap->n_eq] + 1 + total, |
1662 | bmap->extra - bmap->n_div); |
1663 | return bmap->n_eq++; |
1664 | } |
1665 | |
1666 | int isl_basic_set_alloc_equality(__isl_keep isl_basic_setisl_basic_map *bset) |
1667 | { |
1668 | return isl_basic_map_alloc_equality(bset_to_bmap(bset)); |
1669 | } |
1670 | |
1671 | __isl_give isl_basic_map *isl_basic_map_free_equality( |
1672 | __isl_take isl_basic_map *bmap, unsigned n) |
1673 | { |
1674 | if (!bmap) |
1675 | return NULL((void*)0); |
1676 | if (n > bmap->n_eq) |
1677 | isl_die(isl_basic_map_get_ctx(bmap), isl_error_invalid,do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid number of equalities", "polly/lib/External/isl/isl_map.c" , 1679); isl_basic_map_free(bmap); } while (0) |
1678 | "invalid number of equalities",do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid number of equalities", "polly/lib/External/isl/isl_map.c" , 1679); isl_basic_map_free(bmap); } while (0) |
1679 | isl_basic_map_free(bmap))do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid number of equalities", "polly/lib/External/isl/isl_map.c" , 1679); isl_basic_map_free(bmap); } while (0); |
1680 | bmap->n_eq -= n; |
1681 | return bmap; |
1682 | } |
1683 | |
1684 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_free_equality( |
1685 | __isl_take isl_basic_setisl_basic_map *bset, unsigned n) |
1686 | { |
1687 | return bset_from_bmap(isl_basic_map_free_equality(bset_to_bmap(bset), |
1688 | n)); |
1689 | } |
1690 | |
1691 | /* Drop the equality constraint at position "pos", |
1692 | * preserving the order of the other equality constraints. |
1693 | */ |
1694 | int isl_basic_map_drop_equality(__isl_keep isl_basic_map *bmap, unsigned pos) |
1695 | { |
1696 | isl_int *t; |
1697 | int r; |
1698 | |
1699 | if (!bmap) |
1700 | return -1; |
1701 | isl_assert(bmap->ctx, pos < bmap->n_eq, return -1)do { if (pos < bmap->n_eq) break; do { isl_handle_error (bmap->ctx, isl_error_unknown, "Assertion \"" "pos < bmap->n_eq" "\" failed", "polly/lib/External/isl/isl_map.c", 1701); return -1; } while (0); } while (0); |
1702 | |
1703 | t = bmap->eq[pos]; |
1704 | bmap->n_eq--; |
1705 | for (r = pos; r < bmap->n_eq; ++r) |
1706 | bmap->eq[r] = bmap->eq[r + 1]; |
1707 | bmap->eq[bmap->n_eq] = t; |
1708 | |
1709 | return 0; |
1710 | } |
1711 | |
1712 | /* Turn inequality "pos" of "bmap" into an equality. |
1713 | * |
1714 | * In particular, we move the inequality in front of the equalities |
1715 | * and move the last inequality in the position of the moved inequality. |
1716 | * Note that isl_tab_make_equalities_explicit depends on this particular |
1717 | * change in the ordering of the constraints. |
1718 | */ |
1719 | void isl_basic_map_inequality_to_equality( |
1720 | __isl_keep isl_basic_map *bmap, unsigned pos) |
1721 | { |
1722 | isl_int *t; |
1723 | |
1724 | t = bmap->ineq[pos]; |
1725 | bmap->ineq[pos] = bmap->ineq[bmap->n_ineq - 1]; |
1726 | bmap->ineq[bmap->n_ineq - 1] = bmap->eq[-1]; |
1727 | bmap->eq[-1] = t; |
1728 | bmap->n_eq++; |
1729 | bmap->n_ineq--; |
1730 | bmap->eq--; |
1731 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NO_REDUNDANT)(((bmap)->flags) &= ~((1 << 3))); |
1732 | ISL_F_CLR(bmap, ISL_BASIC_MAP_SORTED)(((bmap)->flags) &= ~((1 << 5))); |
1733 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NORMALIZED_DIVS)(((bmap)->flags) &= ~((1 << 6))); |
1734 | ISL_F_CLR(bmap, ISL_BASIC_MAP_ALL_EQUALITIES)(((bmap)->flags) &= ~((1 << 7))); |
1735 | } |
1736 | |
1737 | static int room_for_ineq(__isl_keep isl_basic_map *bmap, unsigned n) |
1738 | { |
1739 | return bmap->n_ineq + n <= bmap->eq - bmap->ineq; |
1740 | } |
1741 | |
1742 | int isl_basic_map_alloc_inequality(__isl_keep isl_basic_map *bmap) |
1743 | { |
1744 | isl_size total; |
1745 | struct isl_ctx *ctx; |
1746 | |
1747 | total = isl_basic_map_dim(bmap, isl_dim_all); |
1748 | if (total < 0) |
1749 | return -1; |
1750 | ctx = bmap->ctx; |
1751 | isl_assert(ctx, room_for_ineq(bmap, 1), return -1)do { if (room_for_ineq(bmap, 1)) break; do { isl_handle_error (ctx, isl_error_unknown, "Assertion \"" "room_for_ineq(bmap, 1)" "\" failed", "polly/lib/External/isl/isl_map.c", 1751); return -1; } while (0); } while (0); |
1752 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NO_IMPLICIT)(((bmap)->flags) &= ~((1 << 2))); |
1753 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NO_REDUNDANT)(((bmap)->flags) &= ~((1 << 3))); |
1754 | ISL_F_CLR(bmap, ISL_BASIC_MAP_SORTED)(((bmap)->flags) &= ~((1 << 5))); |
1755 | ISL_F_CLR(bmap, ISL_BASIC_MAP_ALL_EQUALITIES)(((bmap)->flags) &= ~((1 << 7))); |
1756 | isl_seq_clr(bmap->ineq[bmap->n_ineq] + 1 + total, |
1757 | bmap->extra - bmap->n_div); |
1758 | return bmap->n_ineq++; |
1759 | } |
1760 | |
1761 | int isl_basic_set_alloc_inequality(__isl_keep isl_basic_setisl_basic_map *bset) |
1762 | { |
1763 | return isl_basic_map_alloc_inequality(bset_to_bmap(bset)); |
1764 | } |
1765 | |
1766 | __isl_give isl_basic_map *isl_basic_map_free_inequality( |
1767 | __isl_take isl_basic_map *bmap, unsigned n) |
1768 | { |
1769 | if (!bmap) |
1770 | return NULL((void*)0); |
1771 | if (n > bmap->n_ineq) |
1772 | isl_die(isl_basic_map_get_ctx(bmap), isl_error_invalid,do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid number of inequalities", "polly/lib/External/isl/isl_map.c" , 1774); return isl_basic_map_free(bmap); } while (0) |
1773 | "invalid number of inequalities",do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid number of inequalities", "polly/lib/External/isl/isl_map.c" , 1774); return isl_basic_map_free(bmap); } while (0) |
1774 | return isl_basic_map_free(bmap))do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid number of inequalities", "polly/lib/External/isl/isl_map.c" , 1774); return isl_basic_map_free(bmap); } while (0); |
1775 | bmap->n_ineq -= n; |
1776 | return bmap; |
1777 | } |
1778 | |
1779 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_free_inequality( |
1780 | __isl_take isl_basic_setisl_basic_map *bset, unsigned n) |
1781 | { |
1782 | return bset_from_bmap(isl_basic_map_free_inequality(bset_to_bmap(bset), |
1783 | n)); |
1784 | } |
1785 | |
1786 | int isl_basic_map_drop_inequality(__isl_keep isl_basic_map *bmap, unsigned pos) |
1787 | { |
1788 | isl_int *t; |
1789 | if (!bmap) |
1790 | return -1; |
1791 | isl_assert(bmap->ctx, pos < bmap->n_ineq, return -1)do { if (pos < bmap->n_ineq) break; do { isl_handle_error (bmap->ctx, isl_error_unknown, "Assertion \"" "pos < bmap->n_ineq" "\" failed", "polly/lib/External/isl/isl_map.c", 1791); return -1; } while (0); } while (0); |
1792 | |
1793 | if (pos != bmap->n_ineq - 1) { |
1794 | t = bmap->ineq[pos]; |
1795 | bmap->ineq[pos] = bmap->ineq[bmap->n_ineq - 1]; |
1796 | bmap->ineq[bmap->n_ineq - 1] = t; |
1797 | ISL_F_CLR(bmap, ISL_BASIC_MAP_SORTED)(((bmap)->flags) &= ~((1 << 5))); |
1798 | } |
1799 | bmap->n_ineq--; |
1800 | return 0; |
1801 | } |
1802 | |
1803 | int isl_basic_set_drop_inequality(__isl_keep isl_basic_setisl_basic_map *bset, unsigned pos) |
1804 | { |
1805 | return isl_basic_map_drop_inequality(bset_to_bmap(bset), pos); |
1806 | } |
1807 | |
1808 | __isl_give isl_basic_map *isl_basic_map_add_eq(__isl_take isl_basic_map *bmap, |
1809 | isl_int *eq) |
1810 | { |
1811 | isl_bool empty; |
1812 | isl_size total; |
1813 | int k; |
1814 | |
1815 | empty = isl_basic_map_plain_is_empty(bmap); |
1816 | if (empty < 0) |
1817 | return isl_basic_map_free(bmap); |
1818 | if (empty) |
1819 | return bmap; |
1820 | |
1821 | bmap = isl_basic_map_cow(bmap); |
1822 | bmap = isl_basic_map_extend_constraints(bmap, 1, 0); |
1823 | total = isl_basic_map_dim(bmap, isl_dim_all); |
1824 | if (total < 0) |
1825 | return isl_basic_map_free(bmap); |
1826 | k = isl_basic_map_alloc_equality(bmap); |
1827 | if (k < 0) |
1828 | goto error; |
1829 | isl_seq_cpy(bmap->eq[k], eq, 1 + total); |
1830 | return bmap; |
1831 | error: |
1832 | isl_basic_map_free(bmap); |
1833 | return NULL((void*)0); |
1834 | } |
1835 | |
1836 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_add_eq(__isl_take isl_basic_setisl_basic_map *bset, |
1837 | isl_int *eq) |
1838 | { |
1839 | return bset_from_bmap(isl_basic_map_add_eq(bset_to_bmap(bset), eq)); |
1840 | } |
1841 | |
1842 | __isl_give isl_basic_map *isl_basic_map_add_ineq(__isl_take isl_basic_map *bmap, |
1843 | isl_int *ineq) |
1844 | { |
1845 | isl_size total; |
1846 | int k; |
1847 | |
1848 | bmap = isl_basic_map_cow(bmap); |
1849 | bmap = isl_basic_map_extend_constraints(bmap, 0, 1); |
1850 | total = isl_basic_map_dim(bmap, isl_dim_all); |
1851 | if (total < 0) |
1852 | return isl_basic_map_free(bmap); |
1853 | k = isl_basic_map_alloc_inequality(bmap); |
1854 | if (k < 0) |
1855 | goto error; |
1856 | isl_seq_cpy(bmap->ineq[k], ineq, 1 + total); |
1857 | return bmap; |
1858 | error: |
1859 | isl_basic_map_free(bmap); |
1860 | return NULL((void*)0); |
1861 | } |
1862 | |
1863 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_add_ineq(__isl_take isl_basic_setisl_basic_map *bset, |
1864 | isl_int *ineq) |
1865 | { |
1866 | return bset_from_bmap(isl_basic_map_add_ineq(bset_to_bmap(bset), ineq)); |
1867 | } |
1868 | |
1869 | int isl_basic_map_alloc_div(__isl_keep isl_basic_map *bmap) |
1870 | { |
1871 | isl_size total; |
1872 | |
1873 | total = isl_basic_map_dim(bmap, isl_dim_all); |
1874 | if (total < 0) |
1875 | return -1; |
1876 | isl_assert(bmap->ctx, bmap->n_div < bmap->extra, return -1)do { if (bmap->n_div < bmap->extra) break; do { isl_handle_error (bmap->ctx, isl_error_unknown, "Assertion \"" "bmap->n_div < bmap->extra" "\" failed", "polly/lib/External/isl/isl_map.c", 1876); return -1; } while (0); } while (0); |
1877 | isl_seq_clr(bmap->div[bmap->n_div] + 1 + 1 + total, |
1878 | bmap->extra - bmap->n_div); |
1879 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NORMALIZED_DIVS)(((bmap)->flags) &= ~((1 << 6))); |
1880 | return bmap->n_div++; |
1881 | } |
1882 | |
1883 | int isl_basic_set_alloc_div(__isl_keep isl_basic_setisl_basic_map *bset) |
1884 | { |
1885 | return isl_basic_map_alloc_div(bset_to_bmap(bset)); |
1886 | } |
1887 | |
1888 | #undef TYPEisl_map |
1889 | #define TYPEisl_map isl_basic_map |
1890 | #include "check_type_range_templ.c" |
1891 | |
1892 | /* Check that there are "n" dimensions of type "type" starting at "first" |
1893 | * in "bset". |
1894 | */ |
1895 | isl_stat isl_basic_set_check_range(__isl_keep isl_basic_setisl_basic_map *bset, |
1896 | enum isl_dim_type type, unsigned first, unsigned n) |
1897 | { |
1898 | return isl_basic_map_check_range(bset_to_bmap(bset), |
1899 | type, first, n); |
1900 | } |
1901 | |
1902 | /* Insert an extra integer division, prescribed by "div", to "bmap" |
1903 | * at (integer division) position "pos". |
1904 | * |
1905 | * The integer division is first added at the end and then moved |
1906 | * into the right position. |
1907 | */ |
1908 | __isl_give isl_basic_map *isl_basic_map_insert_div( |
1909 | __isl_take isl_basic_map *bmap, int pos, __isl_keep isl_vec *div) |
1910 | { |
1911 | int i, k; |
1912 | isl_size total; |
1913 | |
1914 | bmap = isl_basic_map_cow(bmap); |
1915 | total = isl_basic_map_dim(bmap, isl_dim_all); |
1916 | if (total < 0 || !div) |
1917 | return isl_basic_map_free(bmap); |
1918 | |
1919 | if (div->size != 1 + 1 + total) |
1920 | isl_die(isl_basic_map_get_ctx(bmap), isl_error_invalid,do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "unexpected size", "polly/lib/External/isl/isl_map.c", 1921 ); return isl_basic_map_free(bmap); } while (0) |
1921 | "unexpected size", return isl_basic_map_free(bmap))do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "unexpected size", "polly/lib/External/isl/isl_map.c", 1921 ); return isl_basic_map_free(bmap); } while (0); |
1922 | if (isl_basic_map_check_range(bmap, isl_dim_div, pos, 0) < 0) |
1923 | return isl_basic_map_free(bmap); |
1924 | |
1925 | bmap = isl_basic_map_extend(bmap, 1, 0, 2); |
1926 | k = isl_basic_map_alloc_div(bmap); |
1927 | if (k < 0) |
1928 | return isl_basic_map_free(bmap); |
1929 | isl_seq_cpy(bmap->div[k], div->el, div->size); |
1930 | isl_int_set_si(bmap->div[k][div->size], 0)isl_sioimath_set_si((bmap->div[k][div->size]), 0); |
1931 | |
1932 | for (i = k; i > pos; --i) |
1933 | bmap = isl_basic_map_swap_div(bmap, i, i - 1); |
1934 | |
1935 | return bmap; |
1936 | } |
1937 | |
1938 | isl_stat isl_basic_map_free_div(__isl_keep isl_basic_map *bmap, unsigned n) |
1939 | { |
1940 | if (!bmap) |
1941 | return isl_stat_error; |
1942 | isl_assert(bmap->ctx, n <= bmap->n_div, return isl_stat_error)do { if (n <= bmap->n_div) break; do { isl_handle_error (bmap->ctx, isl_error_unknown, "Assertion \"" "n <= bmap->n_div" "\" failed", "polly/lib/External/isl/isl_map.c", 1942); return isl_stat_error; } while (0); } while (0); |
1943 | bmap->n_div -= n; |
1944 | return isl_stat_ok; |
1945 | } |
1946 | |
1947 | static __isl_give isl_basic_map *add_constraints( |
1948 | __isl_take isl_basic_map *bmap1, __isl_take isl_basic_map *bmap2, |
1949 | unsigned i_pos, unsigned o_pos) |
1950 | { |
1951 | isl_size total, n_param, n_in, n_out, n_div; |
1952 | unsigned o_in, o_out; |
1953 | isl_ctx *ctx; |
1954 | isl_space *space; |
1955 | struct isl_dim_map *dim_map; |
1956 | |
1957 | space = isl_basic_map_peek_space(bmap2); |
1958 | if (!bmap1 || !space) |
1959 | goto error; |
1960 | |
1961 | total = isl_basic_map_dim(bmap1, isl_dim_all); |
1962 | n_param = isl_basic_map_dim(bmap2, isl_dim_param); |
1963 | n_in = isl_basic_map_dim(bmap2, isl_dim_in); |
1964 | o_in = isl_basic_map_offset(bmap1, isl_dim_in) - 1 + i_pos; |
1965 | n_out = isl_basic_map_dim(bmap2, isl_dim_out); |
1966 | o_out = isl_basic_map_offset(bmap1, isl_dim_out) - 1 + o_pos; |
1967 | n_div = isl_basic_map_dim(bmap2, isl_dim_div); |
1968 | if (total < 0 || n_param < 0 || n_in < 0 || n_out < 0 || n_div < 0) |
1969 | goto error; |
1970 | ctx = isl_basic_map_get_ctx(bmap1); |
1971 | dim_map = isl_dim_map_alloc(ctx, total + n_div); |
1972 | isl_dim_map_dim_range(dim_map, space, isl_dim_param, 0, n_param, 0); |
1973 | isl_dim_map_dim_range(dim_map, space, isl_dim_in, 0, n_in, o_in); |
1974 | isl_dim_map_dim_range(dim_map, space, isl_dim_out, 0, n_out, o_out); |
1975 | isl_dim_map_div(dim_map, bmap2, total); |
1976 | |
1977 | return isl_basic_map_add_constraints_dim_map(bmap1, bmap2, dim_map); |
1978 | error: |
1979 | isl_basic_map_free(bmap1); |
1980 | isl_basic_map_free(bmap2); |
1981 | return NULL((void*)0); |
1982 | } |
1983 | |
1984 | __isl_give isl_basic_map *isl_basic_map_extend(__isl_take isl_basic_map *base, |
1985 | unsigned extra, unsigned n_eq, unsigned n_ineq) |
1986 | { |
1987 | isl_space *space; |
1988 | struct isl_basic_map *ext; |
1989 | unsigned flags; |
1990 | int dims_ok; |
1991 | |
1992 | if (!base) |
1993 | goto error; |
1994 | |
1995 | dims_ok = base->extra >= base->n_div + extra; |
1996 | |
1997 | if (dims_ok && room_for_con(base, n_eq + n_ineq) && |
1998 | room_for_ineq(base, n_ineq)) |
1999 | return base; |
2000 | |
2001 | extra += base->extra; |
2002 | n_eq += base->n_eq; |
2003 | n_ineq += base->n_ineq; |
2004 | |
2005 | space = isl_basic_map_get_space(base); |
2006 | ext = isl_basic_map_alloc_space(space, extra, n_eq, n_ineq); |
2007 | if (!ext) |
2008 | goto error; |
2009 | |
2010 | if (dims_ok) |
2011 | ext->sample = isl_vec_copy(base->sample); |
2012 | flags = base->flags; |
2013 | ext = add_constraints(ext, base, 0, 0); |
2014 | if (ext) { |
2015 | ext->flags = flags; |
2016 | ISL_F_CLR(ext, ISL_BASIC_SET_FINAL)(((ext)->flags) &= ~((1 << 0))); |
2017 | } |
2018 | |
2019 | return ext; |
2020 | |
2021 | error: |
2022 | isl_basic_map_free(base); |
2023 | return NULL((void*)0); |
2024 | } |
2025 | |
2026 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_extend(__isl_take isl_basic_setisl_basic_map *base, |
2027 | unsigned extra, unsigned n_eq, unsigned n_ineq) |
2028 | { |
2029 | return bset_from_bmap(isl_basic_map_extend(bset_to_bmap(base), |
2030 | extra, n_eq, n_ineq)); |
2031 | } |
2032 | |
2033 | __isl_give isl_basic_map *isl_basic_map_extend_constraints( |
2034 | __isl_take isl_basic_map *base, unsigned n_eq, unsigned n_ineq) |
2035 | { |
2036 | return isl_basic_map_extend(base, 0, n_eq, n_ineq); |
2037 | } |
2038 | |
2039 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_extend_constraints( |
2040 | __isl_take isl_basic_setisl_basic_map *base, unsigned n_eq, unsigned n_ineq) |
2041 | { |
2042 | isl_basic_map *bmap = bset_to_bmap(base); |
2043 | bmap = isl_basic_map_extend_constraints(bmap, n_eq, n_ineq); |
2044 | return bset_from_bmap(bmap); |
2045 | } |
2046 | |
2047 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_cow(__isl_take isl_basic_setisl_basic_map *bset) |
2048 | { |
2049 | return bset_from_bmap(isl_basic_map_cow(bset_to_bmap(bset))); |
2050 | } |
2051 | |
2052 | __isl_give isl_basic_map *isl_basic_map_cow(__isl_take isl_basic_map *bmap) |
2053 | { |
2054 | if (!bmap) |
2055 | return NULL((void*)0); |
2056 | |
2057 | if (bmap->ref > 1) { |
2058 | bmap->ref--; |
2059 | bmap = isl_basic_map_dup(bmap); |
2060 | } |
2061 | if (bmap) { |
2062 | ISL_F_CLR(bmap, ISL_BASIC_SET_FINAL)(((bmap)->flags) &= ~((1 << 0))); |
2063 | ISL_F_CLR(bmap, ISL_BASIC_MAP_REDUCED_COEFFICIENTS)(((bmap)->flags) &= ~((1 << 8))); |
2064 | } |
2065 | return bmap; |
2066 | } |
2067 | |
2068 | /* Clear all cached information in "map", either because it is about |
2069 | * to be modified or because it is being freed. |
2070 | * Always return the same pointer that is passed in. |
2071 | * This is needed for the use in isl_map_free. |
2072 | */ |
2073 | static __isl_give isl_map *clear_caches(__isl_take isl_map *map) |
2074 | { |
2075 | isl_basic_map_free(map->cached_simple_hull[0]); |
2076 | isl_basic_map_free(map->cached_simple_hull[1]); |
2077 | map->cached_simple_hull[0] = NULL((void*)0); |
2078 | map->cached_simple_hull[1] = NULL((void*)0); |
2079 | return map; |
2080 | } |
2081 | |
2082 | __isl_give isl_setisl_map *isl_set_cow(__isl_take isl_setisl_map *set) |
2083 | { |
2084 | return isl_map_cow(set); |
2085 | } |
2086 | |
2087 | /* Return an isl_map that is equal to "map" and that has only |
2088 | * a single reference. |
2089 | * |
2090 | * If the original input already has only one reference, then |
2091 | * simply return it, but clear all cached information, since |
2092 | * it may be rendered invalid by the operations that will be |
2093 | * performed on the result. |
2094 | * |
2095 | * Otherwise, create a duplicate (without any cached information). |
2096 | */ |
2097 | __isl_give isl_map *isl_map_cow(__isl_take isl_map *map) |
2098 | { |
2099 | if (!map) |
2100 | return NULL((void*)0); |
2101 | |
2102 | if (map->ref == 1) |
2103 | return clear_caches(map); |
2104 | map->ref--; |
2105 | return isl_map_dup(map); |
2106 | } |
2107 | |
2108 | static void swap_vars(struct isl_blk blk, isl_int *a, |
2109 | unsigned a_len, unsigned b_len) |
2110 | { |
2111 | isl_seq_cpy(blk.data, a+a_len, b_len); |
2112 | isl_seq_cpy(blk.data+b_len, a, a_len); |
2113 | isl_seq_cpy(a, blk.data, b_len+a_len); |
2114 | } |
2115 | |
2116 | static __isl_give isl_basic_map *isl_basic_map_swap_vars( |
2117 | __isl_take isl_basic_map *bmap, unsigned pos, unsigned n1, unsigned n2) |
2118 | { |
2119 | int i; |
2120 | struct isl_blk blk; |
2121 | |
2122 | if (isl_basic_map_check_range(bmap, isl_dim_all, pos - 1, n1 + n2) < 0) |
2123 | goto error; |
2124 | |
2125 | if (n1 == 0 || n2 == 0) |
2126 | return bmap; |
2127 | |
2128 | bmap = isl_basic_map_cow(bmap); |
2129 | if (!bmap) |
2130 | return NULL((void*)0); |
2131 | |
2132 | blk = isl_blk_alloc(bmap->ctx, n1 + n2); |
2133 | if (isl_blk_is_error(blk)) |
2134 | goto error; |
2135 | |
2136 | for (i = 0; i < bmap->n_eq; ++i) |
2137 | swap_vars(blk, |
2138 | bmap->eq[i] + pos, n1, n2); |
2139 | |
2140 | for (i = 0; i < bmap->n_ineq; ++i) |
2141 | swap_vars(blk, |
2142 | bmap->ineq[i] + pos, n1, n2); |
2143 | |
2144 | for (i = 0; i < bmap->n_div; ++i) |
2145 | swap_vars(blk, |
2146 | bmap->div[i]+1 + pos, n1, n2); |
2147 | |
2148 | isl_blk_free(bmap->ctx, blk); |
2149 | |
2150 | ISL_F_CLR(bmap, ISL_BASIC_SET_SORTED)(((bmap)->flags) &= ~((1 << 5))); |
2151 | bmap = isl_basic_map_gauss(bmap, NULL((void*)0)); |
2152 | return isl_basic_map_finalize(bmap); |
2153 | error: |
2154 | isl_basic_map_free(bmap); |
2155 | return NULL((void*)0); |
2156 | } |
2157 | |
2158 | /* The given basic map has turned out to be empty. |
2159 | * Explicitly mark it as such and change the representation |
2160 | * to a canonical representation of the empty basic map. |
2161 | * Since the basic map has conflicting constraints, |
2162 | * it must have at least one constraint, except perhaps |
2163 | * if it was already explicitly marked as being empty. |
2164 | * Do nothing in the latter case, i.e., if it has been marked empty and |
2165 | * has no constraints. |
2166 | */ |
2167 | __isl_give isl_basic_map *isl_basic_map_set_to_empty( |
2168 | __isl_take isl_basic_map *bmap) |
2169 | { |
2170 | int i = 0; |
2171 | isl_bool empty; |
2172 | isl_size n; |
2173 | isl_size total; |
2174 | |
2175 | n = isl_basic_map_n_constraint(bmap); |
2176 | empty = isl_basic_map_plain_is_empty(bmap); |
2177 | if (n < 0 || empty < 0) |
2178 | return isl_basic_map_free(bmap); |
2179 | if (n == 0 && empty) |
2180 | return bmap; |
2181 | total = isl_basic_map_dim(bmap, isl_dim_all); |
2182 | if (total < 0) |
2183 | return isl_basic_map_free(bmap); |
2184 | if (isl_basic_map_free_div(bmap, bmap->n_div) < 0) |
2185 | return isl_basic_map_free(bmap); |
2186 | bmap = isl_basic_map_free_inequality(bmap, bmap->n_ineq); |
2187 | if (!bmap) |
2188 | return NULL((void*)0); |
2189 | if (bmap->n_eq > 0) { |
2190 | bmap = isl_basic_map_free_equality(bmap, bmap->n_eq - 1); |
2191 | if (!bmap) |
2192 | return NULL((void*)0); |
2193 | } else { |
2194 | i = isl_basic_map_alloc_equality(bmap); |
2195 | if (i < 0) |
2196 | goto error; |
2197 | } |
2198 | isl_int_set_si(bmap->eq[i][0], 1)isl_sioimath_set_si((bmap->eq[i][0]), 1); |
2199 | isl_seq_clr(bmap->eq[i]+1, total); |
2200 | ISL_F_SET(bmap, ISL_BASIC_MAP_EMPTY)(((bmap)->flags) |= ((1 << 1))); |
2201 | isl_vec_free(bmap->sample); |
2202 | bmap->sample = NULL((void*)0); |
2203 | return isl_basic_map_finalize(bmap); |
2204 | error: |
2205 | isl_basic_map_free(bmap); |
2206 | return NULL((void*)0); |
2207 | } |
2208 | |
2209 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_set_to_empty( |
2210 | __isl_take isl_basic_setisl_basic_map *bset) |
2211 | { |
2212 | return bset_from_bmap(isl_basic_map_set_to_empty(bset_to_bmap(bset))); |
2213 | } |
2214 | |
2215 | __isl_give isl_basic_map *isl_basic_map_set_rational( |
2216 | __isl_take isl_basic_map *bmap) |
2217 | { |
2218 | if (!bmap) |
2219 | return NULL((void*)0); |
2220 | |
2221 | if (ISL_F_ISSET(bmap, ISL_BASIC_MAP_RATIONAL)(!!(((bmap)->flags) & ((1 << 4))))) |
2222 | return bmap; |
2223 | |
2224 | bmap = isl_basic_map_cow(bmap); |
2225 | if (!bmap) |
2226 | return NULL((void*)0); |
2227 | |
2228 | ISL_F_SET(bmap, ISL_BASIC_MAP_RATIONAL)(((bmap)->flags) |= ((1 << 4))); |
2229 | |
2230 | return isl_basic_map_finalize(bmap); |
2231 | } |
2232 | |
2233 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_set_rational( |
2234 | __isl_take isl_basic_setisl_basic_map *bset) |
2235 | { |
2236 | return isl_basic_map_set_rational(bset); |
2237 | } |
2238 | |
2239 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_set_integral( |
2240 | __isl_take isl_basic_setisl_basic_map *bset) |
2241 | { |
2242 | if (!bset) |
2243 | return NULL((void*)0); |
2244 | |
2245 | if (!ISL_F_ISSET(bset, ISL_BASIC_MAP_RATIONAL)(!!(((bset)->flags) & ((1 << 4))))) |
2246 | return bset; |
2247 | |
2248 | bset = isl_basic_set_cow(bset); |
2249 | if (!bset) |
2250 | return NULL((void*)0); |
2251 | |
2252 | ISL_F_CLR(bset, ISL_BASIC_MAP_RATIONAL)(((bset)->flags) &= ~((1 << 4))); |
2253 | |
2254 | return isl_basic_set_finalize(bset); |
2255 | } |
2256 | |
2257 | __isl_give isl_map *isl_map_set_rational(__isl_take isl_map *map) |
2258 | { |
2259 | int i; |
2260 | |
2261 | map = isl_map_cow(map); |
2262 | if (!map) |
2263 | return NULL((void*)0); |
2264 | for (i = 0; i < map->n; ++i) { |
2265 | map->p[i] = isl_basic_map_set_rational(map->p[i]); |
2266 | if (!map->p[i]) |
2267 | goto error; |
2268 | } |
2269 | return map; |
2270 | error: |
2271 | isl_map_free(map); |
2272 | return NULL((void*)0); |
2273 | } |
2274 | |
2275 | __isl_give isl_setisl_map *isl_set_set_rational(__isl_take isl_setisl_map *set) |
2276 | { |
2277 | return isl_map_set_rational(set); |
2278 | } |
2279 | |
2280 | /* Swap divs "a" and "b" in "bmap" (without modifying any of the constraints |
2281 | * of "bmap"). |
2282 | */ |
2283 | static void swap_div(__isl_keep isl_basic_map *bmap, int a, int b) |
2284 | { |
2285 | isl_int *t = bmap->div[a]; |
2286 | bmap->div[a] = bmap->div[b]; |
2287 | bmap->div[b] = t; |
2288 | } |
2289 | |
2290 | /* Swap divs "a" and "b" in "bmap" and adjust the constraints and |
2291 | * div definitions accordingly. |
2292 | */ |
2293 | __isl_give isl_basic_map *isl_basic_map_swap_div(__isl_take isl_basic_map *bmap, |
2294 | int a, int b) |
2295 | { |
2296 | int i; |
2297 | isl_size off; |
2298 | |
2299 | off = isl_basic_map_var_offset(bmap, isl_dim_div); |
2300 | if (off < 0) |
2301 | return isl_basic_map_free(bmap); |
2302 | |
2303 | swap_div(bmap, a, b); |
2304 | |
2305 | for (i = 0; i < bmap->n_eq; ++i) |
2306 | isl_int_swap(bmap->eq[i][1+off+a], bmap->eq[i][1+off+b])isl_sioimath_swap((bmap->eq[i][1+off+a]), (bmap->eq[i][ 1+off+b])); |
2307 | |
2308 | for (i = 0; i < bmap->n_ineq; ++i) |
2309 | isl_int_swap(bmap->ineq[i][1+off+a], bmap->ineq[i][1+off+b])isl_sioimath_swap((bmap->ineq[i][1+off+a]), (bmap->ineq [i][1+off+b])); |
2310 | |
2311 | for (i = 0; i < bmap->n_div; ++i) |
2312 | isl_int_swap(bmap->div[i][1+1+off+a], bmap->div[i][1+1+off+b])isl_sioimath_swap((bmap->div[i][1+1+off+a]), (bmap->div [i][1+1+off+b])); |
2313 | ISL_F_CLR(bmap, ISL_BASIC_MAP_SORTED)(((bmap)->flags) &= ~((1 << 5))); |
2314 | |
2315 | return bmap; |
2316 | } |
2317 | |
2318 | static void constraint_drop_vars(isl_int *c, unsigned n, unsigned rem) |
2319 | { |
2320 | isl_seq_cpy(c, c + n, rem); |
2321 | isl_seq_clr(c + rem, n); |
2322 | } |
2323 | |
2324 | /* Drop n dimensions starting at first. |
2325 | * |
2326 | * In principle, this frees up some extra variables as the number |
2327 | * of columns remains constant, but we would have to extend |
2328 | * the div array too as the number of rows in this array is assumed |
2329 | * to be equal to extra. |
2330 | */ |
2331 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_drop_dims( |
2332 | __isl_take isl_basic_setisl_basic_map *bset, unsigned first, unsigned n) |
2333 | { |
2334 | return isl_basic_map_drop(bset_to_bmap(bset), isl_dim_set, first, n); |
2335 | } |
2336 | |
2337 | /* Move "n" divs starting at "first" to the end of the list of divs. |
2338 | */ |
2339 | static __isl_give isl_basic_map *move_divs_last(__isl_take isl_basic_map *bmap, |
2340 | unsigned first, unsigned n) |
2341 | { |
2342 | isl_int **div; |
2343 | int i; |
2344 | |
2345 | if (first + n == bmap->n_div) |
2346 | return bmap; |
2347 | |
2348 | div = isl_alloc_array(bmap->ctx, isl_int *, n)((isl_int * *)isl_malloc_or_die(bmap->ctx, (n)*sizeof(isl_int *))); |
2349 | if (!div) |
2350 | goto error; |
2351 | for (i = 0; i < n; ++i) |
2352 | div[i] = bmap->div[first + i]; |
2353 | for (i = 0; i < bmap->n_div - first - n; ++i) |
2354 | bmap->div[first + i] = bmap->div[first + n + i]; |
2355 | for (i = 0; i < n; ++i) |
2356 | bmap->div[bmap->n_div - n + i] = div[i]; |
2357 | free(div); |
2358 | return bmap; |
2359 | error: |
2360 | isl_basic_map_free(bmap); |
2361 | return NULL((void*)0); |
2362 | } |
2363 | |
2364 | #undef TYPEisl_map |
2365 | #define TYPEisl_map isl_map |
2366 | static |
2367 | #include "check_type_range_templ.c" |
2368 | |
2369 | /* Check that there are "n" dimensions of type "type" starting at "first" |
2370 | * in "set". |
2371 | */ |
2372 | isl_stat isl_set_check_range(__isl_keep isl_setisl_map *set, |
2373 | enum isl_dim_type type, unsigned first, unsigned n) |
2374 | { |
2375 | return isl_map_check_range(set_to_map(set), type, first, n); |
2376 | } |
2377 | |
2378 | /* Drop "n" dimensions of type "type" starting at "first". |
2379 | * Perform the core computation, without cowing or |
2380 | * simplifying and finalizing the result. |
2381 | * |
2382 | * In principle, this frees up some extra variables as the number |
2383 | * of columns remains constant, but we would have to extend |
2384 | * the div array too as the number of rows in this array is assumed |
2385 | * to be equal to extra. |
2386 | */ |
2387 | __isl_give isl_basic_map *isl_basic_map_drop_core( |
2388 | __isl_take isl_basic_map *bmap, enum isl_dim_type type, |
2389 | unsigned first, unsigned n) |
2390 | { |
2391 | int i; |
2392 | unsigned offset; |
2393 | unsigned left; |
2394 | isl_size total; |
2395 | |
2396 | if (isl_basic_map_check_range(bmap, type, first, n) < 0) |
2397 | return isl_basic_map_free(bmap); |
2398 | |
2399 | total = isl_basic_map_dim(bmap, isl_dim_all); |
2400 | if (total < 0) |
2401 | return isl_basic_map_free(bmap); |
2402 | |
2403 | offset = isl_basic_map_offset(bmap, type) + first; |
2404 | left = total - (offset - 1) - n; |
2405 | for (i = 0; i < bmap->n_eq; ++i) |
2406 | constraint_drop_vars(bmap->eq[i]+offset, n, left); |
2407 | |
2408 | for (i = 0; i < bmap->n_ineq; ++i) |
2409 | constraint_drop_vars(bmap->ineq[i]+offset, n, left); |
2410 | |
2411 | for (i = 0; i < bmap->n_div; ++i) |
2412 | constraint_drop_vars(bmap->div[i]+1+offset, n, left); |
2413 | |
2414 | if (type == isl_dim_div) { |
2415 | bmap = move_divs_last(bmap, first, n); |
2416 | if (!bmap) |
2417 | return NULL((void*)0); |
2418 | if (isl_basic_map_free_div(bmap, n) < 0) |
2419 | return isl_basic_map_free(bmap); |
2420 | } else |
2421 | bmap->dim = isl_space_drop_dims(bmap->dim, type, first, n); |
2422 | if (!bmap->dim) |
2423 | return isl_basic_map_free(bmap); |
2424 | |
2425 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NO_REDUNDANT)(((bmap)->flags) &= ~((1 << 3))); |
2426 | ISL_F_CLR(bmap, ISL_BASIC_MAP_SORTED)(((bmap)->flags) &= ~((1 << 5))); |
2427 | return bmap; |
2428 | } |
2429 | |
2430 | /* Drop "n" dimensions of type "type" starting at "first". |
2431 | * |
2432 | * In principle, this frees up some extra variables as the number |
2433 | * of columns remains constant, but we would have to extend |
2434 | * the div array too as the number of rows in this array is assumed |
2435 | * to be equal to extra. |
2436 | */ |
2437 | __isl_give isl_basic_map *isl_basic_map_drop(__isl_take isl_basic_map *bmap, |
2438 | enum isl_dim_type type, unsigned first, unsigned n) |
2439 | { |
2440 | if (!bmap) |
2441 | return NULL((void*)0); |
2442 | if (n == 0 && !isl_space_is_named_or_nested(bmap->dim, type)) |
2443 | return bmap; |
2444 | |
2445 | bmap = isl_basic_map_cow(bmap); |
2446 | if (!bmap) |
2447 | return NULL((void*)0); |
2448 | |
2449 | bmap = isl_basic_map_drop_core(bmap, type, first, n); |
2450 | |
2451 | bmap = isl_basic_map_simplify(bmap); |
2452 | return isl_basic_map_finalize(bmap); |
2453 | } |
2454 | |
2455 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_drop(__isl_take isl_basic_setisl_basic_map *bset, |
2456 | enum isl_dim_type type, unsigned first, unsigned n) |
2457 | { |
2458 | return bset_from_bmap(isl_basic_map_drop(bset_to_bmap(bset), |
2459 | type, first, n)); |
2460 | } |
2461 | |
2462 | /* No longer consider "map" to be normalized. |
2463 | */ |
2464 | static __isl_give isl_map *isl_map_unmark_normalized(__isl_take isl_map *map) |
2465 | { |
2466 | if (!map) |
2467 | return NULL((void*)0); |
2468 | ISL_F_CLR(map, ISL_MAP_NORMALIZED)(((map)->flags) &= ~((1 << 1))); |
2469 | return map; |
2470 | } |
2471 | |
2472 | __isl_give isl_map *isl_map_drop(__isl_take isl_map *map, |
2473 | enum isl_dim_type type, unsigned first, unsigned n) |
2474 | { |
2475 | int i; |
2476 | isl_space *space; |
2477 | |
2478 | if (isl_map_check_range(map, type, first, n) < 0) |
2479 | return isl_map_free(map); |
2480 | |
2481 | if (n == 0 && !isl_space_is_named_or_nested(map->dim, type)) |
2482 | return map; |
2483 | map = isl_map_cow(map); |
2484 | if (!map) |
2485 | goto error; |
2486 | |
2487 | for (i = 0; i < map->n; ++i) { |
2488 | map->p[i] = isl_basic_map_drop(map->p[i], type, first, n); |
2489 | if (!map->p[i]) |
2490 | goto error; |
2491 | } |
2492 | map = isl_map_unmark_normalized(map); |
2493 | |
2494 | space = isl_map_take_space(map); |
2495 | space = isl_space_drop_dims(space, type, first, n); |
2496 | map = isl_map_restore_space(map, space); |
2497 | |
2498 | return map; |
2499 | error: |
2500 | isl_map_free(map); |
2501 | return NULL((void*)0); |
2502 | } |
2503 | |
2504 | __isl_give isl_setisl_map *isl_set_drop(__isl_take isl_setisl_map *set, |
2505 | enum isl_dim_type type, unsigned first, unsigned n) |
2506 | { |
2507 | return set_from_map(isl_map_drop(set_to_map(set), type, first, n)); |
2508 | } |
2509 | |
2510 | /* Drop the integer division at position "div", which is assumed |
2511 | * not to appear in any of the constraints or |
2512 | * in any of the other integer divisions. |
2513 | * |
2514 | * Since the integer division is redundant, there is no need to cow. |
2515 | */ |
2516 | __isl_give isl_basic_map *isl_basic_map_drop_div( |
2517 | __isl_take isl_basic_map *bmap, unsigned div) |
2518 | { |
2519 | return isl_basic_map_drop_core(bmap, isl_dim_div, div, 1); |
2520 | } |
2521 | |
2522 | /* Eliminate the specified n dimensions starting at first from the |
2523 | * constraints, without removing the dimensions from the space. |
2524 | * If the set is rational, the dimensions are eliminated using Fourier-Motzkin. |
2525 | */ |
2526 | __isl_give isl_map *isl_map_eliminate(__isl_take isl_map *map, |
2527 | enum isl_dim_type type, unsigned first, unsigned n) |
2528 | { |
2529 | int i; |
2530 | |
2531 | if (n == 0) |
2532 | return map; |
2533 | |
2534 | if (isl_map_check_range(map, type, first, n) < 0) |
2535 | return isl_map_free(map); |
2536 | |
2537 | map = isl_map_cow(map); |
2538 | if (!map) |
2539 | return NULL((void*)0); |
2540 | |
2541 | for (i = 0; i < map->n; ++i) { |
2542 | map->p[i] = isl_basic_map_eliminate(map->p[i], type, first, n); |
2543 | if (!map->p[i]) |
2544 | goto error; |
2545 | } |
2546 | return map; |
2547 | error: |
2548 | isl_map_free(map); |
2549 | return NULL((void*)0); |
2550 | } |
2551 | |
2552 | /* Eliminate the specified n dimensions starting at first from the |
2553 | * constraints, without removing the dimensions from the space. |
2554 | * If the set is rational, the dimensions are eliminated using Fourier-Motzkin. |
2555 | */ |
2556 | __isl_give isl_setisl_map *isl_set_eliminate(__isl_take isl_setisl_map *set, |
2557 | enum isl_dim_type type, unsigned first, unsigned n) |
2558 | { |
2559 | return set_from_map(isl_map_eliminate(set_to_map(set), type, first, n)); |
2560 | } |
2561 | |
2562 | /* Eliminate the specified n dimensions starting at first from the |
2563 | * constraints, without removing the dimensions from the space. |
2564 | * If the set is rational, the dimensions are eliminated using Fourier-Motzkin. |
2565 | */ |
2566 | __isl_give isl_setisl_map *isl_set_eliminate_dims(__isl_take isl_setisl_map *set, |
2567 | unsigned first, unsigned n) |
2568 | { |
2569 | return isl_set_eliminate(set, isl_dim_set, first, n); |
2570 | } |
2571 | |
2572 | __isl_give isl_basic_map *isl_basic_map_remove_divs( |
2573 | __isl_take isl_basic_map *bmap) |
2574 | { |
2575 | isl_size v_div; |
2576 | |
2577 | v_div = isl_basic_map_var_offset(bmap, isl_dim_div); |
2578 | if (v_div < 0) |
2579 | return isl_basic_map_free(bmap); |
2580 | bmap = isl_basic_map_eliminate_vars(bmap, v_div, bmap->n_div); |
2581 | if (!bmap) |
2582 | return NULL((void*)0); |
2583 | bmap->n_div = 0; |
2584 | return isl_basic_map_finalize(bmap); |
2585 | } |
2586 | |
2587 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_remove_divs( |
2588 | __isl_take isl_basic_setisl_basic_map *bset) |
2589 | { |
2590 | return bset_from_bmap(isl_basic_map_remove_divs(bset_to_bmap(bset))); |
2591 | } |
2592 | |
2593 | __isl_give isl_map *isl_map_remove_divs(__isl_take isl_map *map) |
2594 | { |
2595 | int i; |
2596 | |
2597 | if (!map) |
2598 | return NULL((void*)0); |
2599 | if (map->n == 0) |
2600 | return map; |
2601 | |
2602 | map = isl_map_cow(map); |
2603 | if (!map) |
2604 | return NULL((void*)0); |
2605 | |
2606 | for (i = 0; i < map->n; ++i) { |
2607 | map->p[i] = isl_basic_map_remove_divs(map->p[i]); |
2608 | if (!map->p[i]) |
2609 | goto error; |
2610 | } |
2611 | return map; |
2612 | error: |
2613 | isl_map_free(map); |
2614 | return NULL((void*)0); |
2615 | } |
2616 | |
2617 | __isl_give isl_setisl_map *isl_set_remove_divs(__isl_take isl_setisl_map *set) |
2618 | { |
2619 | return isl_map_remove_divs(set); |
2620 | } |
2621 | |
2622 | __isl_give isl_basic_map *isl_basic_map_remove_dims( |
2623 | __isl_take isl_basic_map *bmap, enum isl_dim_type type, |
2624 | unsigned first, unsigned n) |
2625 | { |
2626 | if (isl_basic_map_check_range(bmap, type, first, n) < 0) |
2627 | return isl_basic_map_free(bmap); |
2628 | if (n == 0 && !isl_space_is_named_or_nested(bmap->dim, type)) |
2629 | return bmap; |
2630 | bmap = isl_basic_map_eliminate_vars(bmap, |
2631 | isl_basic_map_offset(bmap, type) - 1 + first, n); |
2632 | if (!bmap) |
2633 | return bmap; |
2634 | if (ISL_F_ISSET(bmap, ISL_BASIC_MAP_EMPTY)(!!(((bmap)->flags) & ((1 << 1)))) && type == isl_dim_div) |
2635 | return bmap; |
2636 | bmap = isl_basic_map_drop(bmap, type, first, n); |
2637 | return bmap; |
2638 | } |
2639 | |
2640 | /* Return true if the definition of the given div (recursively) involves |
2641 | * any of the given variables. |
2642 | */ |
2643 | static isl_bool div_involves_vars(__isl_keep isl_basic_map *bmap, int div, |
2644 | unsigned first, unsigned n) |
2645 | { |
2646 | int i; |
2647 | unsigned div_offset = isl_basic_map_offset(bmap, isl_dim_div); |
2648 | |
2649 | if (isl_int_is_zero(bmap->div[div][0])(isl_sioimath_sgn(*(bmap->div[div][0])) == 0)) |
2650 | return isl_bool_false; |
2651 | if (isl_seq_first_non_zero(bmap->div[div] + 1 + first, n) >= 0) |
2652 | return isl_bool_true; |
2653 | |
2654 | for (i = bmap->n_div - 1; i >= 0; --i) { |
2655 | isl_bool involves; |
2656 | |
2657 | if (isl_int_is_zero(bmap->div[div][1 + div_offset + i])(isl_sioimath_sgn(*(bmap->div[div][1 + div_offset + i])) == 0)) |
2658 | continue; |
2659 | involves = div_involves_vars(bmap, i, first, n); |
2660 | if (involves < 0 || involves) |
2661 | return involves; |
2662 | } |
2663 | |
2664 | return isl_bool_false; |
2665 | } |
2666 | |
2667 | /* Try and add a lower and/or upper bound on "div" to "bmap" |
2668 | * based on inequality "i". |
2669 | * "total" is the total number of variables (excluding the divs). |
2670 | * "v" is a temporary object that can be used during the calculations. |
2671 | * If "lb" is set, then a lower bound should be constructed. |
2672 | * If "ub" is set, then an upper bound should be constructed. |
2673 | * |
2674 | * The calling function has already checked that the inequality does not |
2675 | * reference "div", but we still need to check that the inequality is |
2676 | * of the right form. We'll consider the case where we want to construct |
2677 | * a lower bound. The construction of upper bounds is similar. |
2678 | * |
2679 | * Let "div" be of the form |
2680 | * |
2681 | * q = floor((a + f(x))/d) |
2682 | * |
2683 | * We essentially check if constraint "i" is of the form |
2684 | * |
2685 | * b + f(x) >= 0 |
2686 | * |
2687 | * so that we can use it to derive a lower bound on "div". |
2688 | * However, we allow a slightly more general form |
2689 | * |
2690 | * b + g(x) >= 0 |
2691 | * |
2692 | * with the condition that the coefficients of g(x) - f(x) are all |
2693 | * divisible by d. |
2694 | * Rewriting this constraint as |
2695 | * |
2696 | * 0 >= -b - g(x) |
2697 | * |
2698 | * adding a + f(x) to both sides and dividing by d, we obtain |
2699 | * |
2700 | * (a + f(x))/d >= (a-b)/d + (f(x)-g(x))/d |
2701 | * |
2702 | * Taking the floor on both sides, we obtain |
2703 | * |
2704 | * q >= floor((a-b)/d) + (f(x)-g(x))/d |
2705 | * |
2706 | * or |
2707 | * |
2708 | * (g(x)-f(x))/d + ceil((b-a)/d) + q >= 0 |
2709 | * |
2710 | * In the case of an upper bound, we construct the constraint |
2711 | * |
2712 | * (g(x)+f(x))/d + floor((b+a)/d) - q >= 0 |
2713 | * |
2714 | */ |
2715 | static __isl_give isl_basic_map *insert_bounds_on_div_from_ineq( |
2716 | __isl_take isl_basic_map *bmap, int div, int i, |
2717 | unsigned total, isl_int v, int lb, int ub) |
2718 | { |
2719 | int j; |
2720 | |
2721 | for (j = 0; (lb || ub) && j < total + bmap->n_div; ++j) { |
2722 | if (lb) { |
2723 | isl_int_sub(v, bmap->ineq[i][1 + j],isl_sioimath_sub((v), *(bmap->ineq[i][1 + j]), *(bmap-> div[div][1 + 1 + j])) |
2724 | bmap->div[div][1 + 1 + j])isl_sioimath_sub((v), *(bmap->ineq[i][1 + j]), *(bmap-> div[div][1 + 1 + j])); |
2725 | lb = isl_int_is_divisible_by(v, bmap->div[div][0])isl_sioimath_is_divisible_by(*(v), *(bmap->div[div][0])); |
2726 | } |
2727 | if (ub) { |
2728 | isl_int_add(v, bmap->ineq[i][1 + j],isl_sioimath_add((v), *(bmap->ineq[i][1 + j]), *(bmap-> div[div][1 + 1 + j])) |
2729 | bmap->div[div][1 + 1 + j])isl_sioimath_add((v), *(bmap->ineq[i][1 + j]), *(bmap-> div[div][1 + 1 + j])); |
2730 | ub = isl_int_is_divisible_by(v, bmap->div[div][0])isl_sioimath_is_divisible_by(*(v), *(bmap->div[div][0])); |
2731 | } |
2732 | } |
2733 | if (!lb && !ub) |
2734 | return bmap; |
2735 | |
2736 | bmap = isl_basic_map_cow(bmap); |
2737 | bmap = isl_basic_map_extend_constraints(bmap, 0, lb + ub); |
2738 | if (lb) { |
2739 | int k = isl_basic_map_alloc_inequality(bmap); |
2740 | if (k < 0) |
2741 | goto error; |
2742 | for (j = 0; j < 1 + total + bmap->n_div; ++j) { |
2743 | isl_int_sub(bmap->ineq[k][j], bmap->ineq[i][j],isl_sioimath_sub((bmap->ineq[k][j]), *(bmap->ineq[i][j] ), *(bmap->div[div][1 + j])) |
2744 | bmap->div[div][1 + j])isl_sioimath_sub((bmap->ineq[k][j]), *(bmap->ineq[i][j] ), *(bmap->div[div][1 + j])); |
2745 | isl_int_cdiv_q(bmap->ineq[k][j],isl_sioimath_cdiv_q((bmap->ineq[k][j]), *(bmap->ineq[k] [j]), *(bmap->div[div][0])) |
2746 | bmap->ineq[k][j], bmap->div[div][0])isl_sioimath_cdiv_q((bmap->ineq[k][j]), *(bmap->ineq[k] [j]), *(bmap->div[div][0])); |
2747 | } |
2748 | isl_int_set_si(bmap->ineq[k][1 + total + div], 1)isl_sioimath_set_si((bmap->ineq[k][1 + total + div]), 1); |
2749 | } |
2750 | if (ub) { |
2751 | int k = isl_basic_map_alloc_inequality(bmap); |
2752 | if (k < 0) |
2753 | goto error; |
2754 | for (j = 0; j < 1 + total + bmap->n_div; ++j) { |
2755 | isl_int_add(bmap->ineq[k][j], bmap->ineq[i][j],isl_sioimath_add((bmap->ineq[k][j]), *(bmap->ineq[i][j] ), *(bmap->div[div][1 + j])) |
2756 | bmap->div[div][1 + j])isl_sioimath_add((bmap->ineq[k][j]), *(bmap->ineq[i][j] ), *(bmap->div[div][1 + j])); |
2757 | isl_int_fdiv_q(bmap->ineq[k][j],isl_sioimath_fdiv_q((bmap->ineq[k][j]), *(bmap->ineq[k] [j]), *(bmap->div[div][0])) |
2758 | bmap->ineq[k][j], bmap->div[div][0])isl_sioimath_fdiv_q((bmap->ineq[k][j]), *(bmap->ineq[k] [j]), *(bmap->div[div][0])); |
2759 | } |
2760 | isl_int_set_si(bmap->ineq[k][1 + total + div], -1)isl_sioimath_set_si((bmap->ineq[k][1 + total + div]), -1); |
2761 | } |
2762 | |
2763 | return bmap; |
2764 | error: |
2765 | isl_basic_map_free(bmap); |
2766 | return NULL((void*)0); |
2767 | } |
2768 | |
2769 | /* This function is called right before "div" is eliminated from "bmap" |
2770 | * using Fourier-Motzkin. |
2771 | * Look through the constraints of "bmap" for constraints on the argument |
2772 | * of the integer division and use them to construct constraints on the |
2773 | * integer division itself. These constraints can then be combined |
2774 | * during the Fourier-Motzkin elimination. |
2775 | * Note that it is only useful to introduce lower bounds on "div" |
2776 | * if "bmap" already contains upper bounds on "div" as the newly |
2777 | * introduce lower bounds can then be combined with the pre-existing |
2778 | * upper bounds. Similarly for upper bounds. |
2779 | * We therefore first check if "bmap" contains any lower and/or upper bounds |
2780 | * on "div". |
2781 | * |
2782 | * It is interesting to note that the introduction of these constraints |
2783 | * can indeed lead to more accurate results, even when compared to |
2784 | * deriving constraints on the argument of "div" from constraints on "div". |
2785 | * Consider, for example, the set |
2786 | * |
2787 | * { [i,j,k] : 3 + i + 2j >= 0 and 2 * [(i+2j)/4] <= k } |
2788 | * |
2789 | * The second constraint can be rewritten as |
2790 | * |
2791 | * 2 * [(-i-2j+3)/4] + k >= 0 |
2792 | * |
2793 | * from which we can derive |
2794 | * |
2795 | * -i - 2j + 3 >= -2k |
2796 | * |
2797 | * or |
2798 | * |
2799 | * i + 2j <= 3 + 2k |
2800 | * |
2801 | * Combined with the first constraint, we obtain |
2802 | * |
2803 | * -3 <= 3 + 2k or k >= -3 |
2804 | * |
2805 | * If, on the other hand we derive a constraint on [(i+2j)/4] from |
2806 | * the first constraint, we obtain |
2807 | * |
2808 | * [(i + 2j)/4] >= [-3/4] = -1 |
2809 | * |
2810 | * Combining this constraint with the second constraint, we obtain |
2811 | * |
2812 | * k >= -2 |
2813 | */ |
2814 | static __isl_give isl_basic_map *insert_bounds_on_div( |
2815 | __isl_take isl_basic_map *bmap, int div) |
2816 | { |
2817 | int i; |
2818 | int check_lb, check_ub; |
2819 | isl_int v; |
2820 | isl_size v_div; |
2821 | |
2822 | if (!bmap) |
2823 | return NULL((void*)0); |
2824 | |
2825 | if (isl_int_is_zero(bmap->div[div][0])(isl_sioimath_sgn(*(bmap->div[div][0])) == 0)) |
2826 | return bmap; |
2827 | |
2828 | v_div = isl_basic_map_var_offset(bmap, isl_dim_div); |
2829 | if (v_div < 0) |
2830 | return isl_basic_map_free(bmap); |
2831 | |
2832 | check_lb = 0; |
2833 | check_ub = 0; |
2834 | for (i = 0; (!check_lb || !check_ub) && i < bmap->n_ineq; ++i) { |
2835 | int s = isl_int_sgn(bmap->ineq[i][1 + v_div + div])isl_sioimath_sgn(*(bmap->ineq[i][1 + v_div + div])); |
2836 | if (s > 0) |
2837 | check_ub = 1; |
2838 | if (s < 0) |
2839 | check_lb = 1; |
2840 | } |
2841 | |
2842 | if (!check_lb && !check_ub) |
2843 | return bmap; |
2844 | |
2845 | isl_int_init(v)isl_sioimath_init((v)); |
2846 | |
2847 | for (i = 0; bmap && i < bmap->n_ineq; ++i) { |
2848 | if (!isl_int_is_zero(bmap->ineq[i][1 + v_div + div])(isl_sioimath_sgn(*(bmap->ineq[i][1 + v_div + div])) == 0)) |
2849 | continue; |
2850 | |
2851 | bmap = insert_bounds_on_div_from_ineq(bmap, div, i, v_div, v, |
2852 | check_lb, check_ub); |
2853 | } |
2854 | |
2855 | isl_int_clear(v)isl_sioimath_clear((v)); |
2856 | |
2857 | return bmap; |
2858 | } |
2859 | |
2860 | /* Remove all divs (recursively) involving any of the given dimensions |
2861 | * in their definitions. |
2862 | */ |
2863 | __isl_give isl_basic_map *isl_basic_map_remove_divs_involving_dims( |
2864 | __isl_take isl_basic_map *bmap, |
2865 | enum isl_dim_type type, unsigned first, unsigned n) |
2866 | { |
2867 | int i; |
2868 | |
2869 | if (isl_basic_map_check_range(bmap, type, first, n) < 0) |
2870 | return isl_basic_map_free(bmap); |
2871 | first += isl_basic_map_offset(bmap, type); |
2872 | |
2873 | for (i = bmap->n_div - 1; i >= 0; --i) { |
2874 | isl_bool involves; |
2875 | |
2876 | involves = div_involves_vars(bmap, i, first, n); |
2877 | if (involves < 0) |
2878 | return isl_basic_map_free(bmap); |
2879 | if (!involves) |
2880 | continue; |
2881 | bmap = insert_bounds_on_div(bmap, i); |
2882 | bmap = isl_basic_map_remove_dims(bmap, isl_dim_div, i, 1); |
2883 | if (!bmap) |
2884 | return NULL((void*)0); |
2885 | i = bmap->n_div; |
2886 | } |
2887 | |
2888 | return bmap; |
2889 | } |
2890 | |
2891 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_remove_divs_involving_dims( |
2892 | __isl_take isl_basic_setisl_basic_map *bset, |
2893 | enum isl_dim_type type, unsigned first, unsigned n) |
2894 | { |
2895 | return isl_basic_map_remove_divs_involving_dims(bset, type, first, n); |
2896 | } |
2897 | |
2898 | __isl_give isl_map *isl_map_remove_divs_involving_dims(__isl_take isl_map *map, |
2899 | enum isl_dim_type type, unsigned first, unsigned n) |
2900 | { |
2901 | int i; |
2902 | |
2903 | if (!map) |
2904 | return NULL((void*)0); |
2905 | if (map->n == 0) |
2906 | return map; |
2907 | |
2908 | map = isl_map_cow(map); |
2909 | if (!map) |
2910 | return NULL((void*)0); |
2911 | |
2912 | for (i = 0; i < map->n; ++i) { |
2913 | map->p[i] = isl_basic_map_remove_divs_involving_dims(map->p[i], |
2914 | type, first, n); |
2915 | if (!map->p[i]) |
2916 | goto error; |
2917 | } |
2918 | return map; |
2919 | error: |
2920 | isl_map_free(map); |
2921 | return NULL((void*)0); |
2922 | } |
2923 | |
2924 | __isl_give isl_setisl_map *isl_set_remove_divs_involving_dims(__isl_take isl_setisl_map *set, |
2925 | enum isl_dim_type type, unsigned first, unsigned n) |
2926 | { |
2927 | return set_from_map(isl_map_remove_divs_involving_dims(set_to_map(set), |
2928 | type, first, n)); |
2929 | } |
2930 | |
2931 | /* Does the description of "bmap" depend on the specified dimensions? |
2932 | * We also check whether the dimensions appear in any of the div definitions. |
2933 | * In principle there is no need for this check. If the dimensions appear |
2934 | * in a div definition, they also appear in the defining constraints of that |
2935 | * div. |
2936 | */ |
2937 | isl_bool isl_basic_map_involves_dims(__isl_keep isl_basic_map *bmap, |
2938 | enum isl_dim_type type, unsigned first, unsigned n) |
2939 | { |
2940 | int i; |
2941 | |
2942 | if (isl_basic_map_check_range(bmap, type, first, n) < 0) |
2943 | return isl_bool_error; |
2944 | |
2945 | first += isl_basic_map_offset(bmap, type); |
2946 | for (i = 0; i < bmap->n_eq; ++i) |
2947 | if (isl_seq_first_non_zero(bmap->eq[i] + first, n) >= 0) |
2948 | return isl_bool_true; |
2949 | for (i = 0; i < bmap->n_ineq; ++i) |
2950 | if (isl_seq_first_non_zero(bmap->ineq[i] + first, n) >= 0) |
2951 | return isl_bool_true; |
2952 | for (i = 0; i < bmap->n_div; ++i) { |
2953 | if (isl_int_is_zero(bmap->div[i][0])(isl_sioimath_sgn(*(bmap->div[i][0])) == 0)) |
2954 | continue; |
2955 | if (isl_seq_first_non_zero(bmap->div[i] + 1 + first, n) >= 0) |
2956 | return isl_bool_true; |
2957 | } |
2958 | |
2959 | return isl_bool_false; |
2960 | } |
2961 | |
2962 | isl_bool isl_map_involves_dims(__isl_keep isl_map *map, |
2963 | enum isl_dim_type type, unsigned first, unsigned n) |
2964 | { |
2965 | int i; |
2966 | |
2967 | if (isl_map_check_range(map, type, first, n) < 0) |
2968 | return isl_bool_error; |
2969 | |
2970 | for (i = 0; i < map->n; ++i) { |
2971 | isl_bool involves = isl_basic_map_involves_dims(map->p[i], |
2972 | type, first, n); |
2973 | if (involves < 0 || involves) |
2974 | return involves; |
2975 | } |
2976 | |
2977 | return isl_bool_false; |
2978 | } |
2979 | |
2980 | isl_bool isl_basic_set_involves_dims(__isl_keep isl_basic_setisl_basic_map *bset, |
2981 | enum isl_dim_type type, unsigned first, unsigned n) |
2982 | { |
2983 | return isl_basic_map_involves_dims(bset, type, first, n); |
2984 | } |
2985 | |
2986 | isl_bool isl_set_involves_dims(__isl_keep isl_setisl_map *set, |
2987 | enum isl_dim_type type, unsigned first, unsigned n) |
2988 | { |
2989 | return isl_map_involves_dims(set, type, first, n); |
2990 | } |
2991 | |
2992 | /* Does "bset" involve any local variables, i.e., integer divisions? |
2993 | */ |
2994 | static isl_bool isl_basic_set_involves_locals(__isl_keep isl_basic_setisl_basic_map *bset) |
2995 | { |
2996 | isl_size n; |
2997 | |
2998 | n = isl_basic_set_dim(bset, isl_dim_div); |
2999 | if (n < 0) |
3000 | return isl_bool_error; |
3001 | return isl_bool_ok(n > 0); |
3002 | } |
3003 | |
3004 | /* isl_set_every_basic_set callback that checks whether "bset" |
3005 | * is free of local variables. |
3006 | */ |
3007 | static isl_bool basic_set_no_locals(__isl_keep isl_basic_setisl_basic_map *bset, void *user) |
3008 | { |
3009 | return isl_bool_not(isl_basic_set_involves_locals(bset)); |
3010 | } |
3011 | |
3012 | /* Does "set" involve any local variables, i.e., integer divisions? |
3013 | */ |
3014 | isl_bool isl_set_involves_locals(__isl_keep isl_setisl_map *set) |
3015 | { |
3016 | isl_bool no_locals; |
3017 | |
3018 | no_locals = isl_set_every_basic_set(set, &basic_set_no_locals, NULL((void*)0)); |
3019 | return isl_bool_not(no_locals); |
3020 | } |
3021 | |
3022 | /* Drop all constraints in bmap that involve any of the dimensions |
3023 | * first to first+n-1. |
3024 | * This function only performs the actual removal of constraints. |
3025 | * |
3026 | * This function should not call finalize since it is used by |
3027 | * remove_redundant_divs, which in turn is called by isl_basic_map_finalize. |
3028 | */ |
3029 | __isl_give isl_basic_map *isl_basic_map_drop_constraints_involving( |
3030 | __isl_take isl_basic_map *bmap, unsigned first, unsigned n) |
3031 | { |
3032 | int i; |
3033 | |
3034 | if (n == 0) |
3035 | return bmap; |
3036 | |
3037 | bmap = isl_basic_map_cow(bmap); |
3038 | |
3039 | if (!bmap) |
3040 | return NULL((void*)0); |
3041 | |
3042 | for (i = bmap->n_eq - 1; i >= 0; --i) { |
3043 | if (isl_seq_first_non_zero(bmap->eq[i] + 1 + first, n) == -1) |
3044 | continue; |
3045 | if (isl_basic_map_drop_equality(bmap, i) < 0) |
3046 | return isl_basic_map_free(bmap); |
3047 | } |
3048 | |
3049 | for (i = bmap->n_ineq - 1; i >= 0; --i) { |
3050 | if (isl_seq_first_non_zero(bmap->ineq[i] + 1 + first, n) == -1) |
3051 | continue; |
3052 | if (isl_basic_map_drop_inequality(bmap, i) < 0) |
3053 | return isl_basic_map_free(bmap); |
3054 | } |
3055 | |
3056 | return bmap; |
3057 | } |
3058 | |
3059 | /* Drop all constraints in bset that involve any of the dimensions |
3060 | * first to first+n-1. |
3061 | * This function only performs the actual removal of constraints. |
3062 | */ |
3063 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_drop_constraints_involving( |
3064 | __isl_take isl_basic_setisl_basic_map *bset, unsigned first, unsigned n) |
3065 | { |
3066 | return isl_basic_map_drop_constraints_involving(bset, first, n); |
3067 | } |
3068 | |
3069 | /* Drop all constraints in bmap that do not involve any of the dimensions |
3070 | * first to first + n - 1 of the given type. |
3071 | */ |
3072 | __isl_give isl_basic_map *isl_basic_map_drop_constraints_not_involving_dims( |
3073 | __isl_take isl_basic_map *bmap, |
3074 | enum isl_dim_type type, unsigned first, unsigned n) |
3075 | { |
3076 | int i; |
3077 | |
3078 | if (n == 0) { |
3079 | isl_space *space = isl_basic_map_get_space(bmap); |
3080 | isl_basic_map_free(bmap); |
3081 | return isl_basic_map_universe(space); |
3082 | } |
3083 | bmap = isl_basic_map_cow(bmap); |
3084 | if (!bmap) |
3085 | return NULL((void*)0); |
3086 | |
3087 | if (isl_basic_map_check_range(bmap, type, first, n) < 0) |
3088 | return isl_basic_map_free(bmap); |
3089 | |
3090 | first += isl_basic_map_offset(bmap, type) - 1; |
3091 | |
3092 | for (i = bmap->n_eq - 1; i >= 0; --i) { |
3093 | if (isl_seq_first_non_zero(bmap->eq[i] + 1 + first, n) != -1) |
3094 | continue; |
3095 | if (isl_basic_map_drop_equality(bmap, i) < 0) |
3096 | return isl_basic_map_free(bmap); |
3097 | } |
3098 | |
3099 | for (i = bmap->n_ineq - 1; i >= 0; --i) { |
3100 | if (isl_seq_first_non_zero(bmap->ineq[i] + 1 + first, n) != -1) |
3101 | continue; |
3102 | if (isl_basic_map_drop_inequality(bmap, i) < 0) |
3103 | return isl_basic_map_free(bmap); |
3104 | } |
3105 | |
3106 | bmap = isl_basic_map_add_known_div_constraints(bmap); |
3107 | return bmap; |
3108 | } |
3109 | |
3110 | /* Drop all constraints in bset that do not involve any of the dimensions |
3111 | * first to first + n - 1 of the given type. |
3112 | */ |
3113 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_drop_constraints_not_involving_dims( |
3114 | __isl_take isl_basic_setisl_basic_map *bset, |
3115 | enum isl_dim_type type, unsigned first, unsigned n) |
3116 | { |
3117 | return isl_basic_map_drop_constraints_not_involving_dims(bset, |
3118 | type, first, n); |
3119 | } |
3120 | |
3121 | /* Drop all constraints in bmap that involve any of the dimensions |
3122 | * first to first + n - 1 of the given type. |
3123 | */ |
3124 | __isl_give isl_basic_map *isl_basic_map_drop_constraints_involving_dims( |
3125 | __isl_take isl_basic_map *bmap, |
3126 | enum isl_dim_type type, unsigned first, unsigned n) |
3127 | { |
3128 | if (!bmap) |
3129 | return NULL((void*)0); |
3130 | if (n == 0) |
3131 | return bmap; |
3132 | |
3133 | if (isl_basic_map_check_range(bmap, type, first, n) < 0) |
3134 | return isl_basic_map_free(bmap); |
3135 | |
3136 | bmap = isl_basic_map_remove_divs_involving_dims(bmap, type, first, n); |
3137 | first += isl_basic_map_offset(bmap, type) - 1; |
3138 | bmap = isl_basic_map_drop_constraints_involving(bmap, first, n); |
3139 | bmap = isl_basic_map_add_known_div_constraints(bmap); |
3140 | return bmap; |
3141 | } |
3142 | |
3143 | /* Drop all constraints in bset that involve any of the dimensions |
3144 | * first to first + n - 1 of the given type. |
3145 | */ |
3146 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_drop_constraints_involving_dims( |
3147 | __isl_take isl_basic_setisl_basic_map *bset, |
3148 | enum isl_dim_type type, unsigned first, unsigned n) |
3149 | { |
3150 | return isl_basic_map_drop_constraints_involving_dims(bset, |
3151 | type, first, n); |
3152 | } |
3153 | |
3154 | /* Drop constraints from "map" by applying "drop" to each basic map. |
3155 | */ |
3156 | static __isl_give isl_map *drop_constraints(__isl_take isl_map *map, |
3157 | enum isl_dim_type type, unsigned first, unsigned n, |
3158 | __isl_give isl_basic_map *(*drop)(__isl_take isl_basic_map *bmap, |
3159 | enum isl_dim_type type, unsigned first, unsigned n)) |
3160 | { |
3161 | int i; |
3162 | |
3163 | if (isl_map_check_range(map, type, first, n) < 0) |
3164 | return isl_map_free(map); |
3165 | |
3166 | map = isl_map_cow(map); |
3167 | if (!map) |
3168 | return NULL((void*)0); |
3169 | |
3170 | for (i = 0; i < map->n; ++i) { |
3171 | map->p[i] = drop(map->p[i], type, first, n); |
3172 | if (!map->p[i]) |
3173 | return isl_map_free(map); |
3174 | } |
3175 | |
3176 | if (map->n > 1) |
3177 | ISL_F_CLR(map, ISL_MAP_DISJOINT)(((map)->flags) &= ~((1 << 0))); |
3178 | |
3179 | return map; |
3180 | } |
3181 | |
3182 | /* Drop all constraints in map that involve any of the dimensions |
3183 | * first to first + n - 1 of the given type. |
3184 | */ |
3185 | __isl_give isl_map *isl_map_drop_constraints_involving_dims( |
3186 | __isl_take isl_map *map, |
3187 | enum isl_dim_type type, unsigned first, unsigned n) |
3188 | { |
3189 | if (n == 0) |
3190 | return map; |
3191 | return drop_constraints(map, type, first, n, |
3192 | &isl_basic_map_drop_constraints_involving_dims); |
3193 | } |
3194 | |
3195 | /* Drop all constraints in "map" that do not involve any of the dimensions |
3196 | * first to first + n - 1 of the given type. |
3197 | */ |
3198 | __isl_give isl_map *isl_map_drop_constraints_not_involving_dims( |
3199 | __isl_take isl_map *map, |
3200 | enum isl_dim_type type, unsigned first, unsigned n) |
3201 | { |
3202 | if (n == 0) { |
3203 | isl_space *space = isl_map_get_space(map); |
3204 | isl_map_free(map); |
3205 | return isl_map_universe(space); |
3206 | } |
3207 | return drop_constraints(map, type, first, n, |
3208 | &isl_basic_map_drop_constraints_not_involving_dims); |
3209 | } |
3210 | |
3211 | /* Drop all constraints in set that involve any of the dimensions |
3212 | * first to first + n - 1 of the given type. |
3213 | */ |
3214 | __isl_give isl_setisl_map *isl_set_drop_constraints_involving_dims( |
3215 | __isl_take isl_setisl_map *set, |
3216 | enum isl_dim_type type, unsigned first, unsigned n) |
3217 | { |
3218 | return isl_map_drop_constraints_involving_dims(set, type, first, n); |
3219 | } |
3220 | |
3221 | /* Drop all constraints in "set" that do not involve any of the dimensions |
3222 | * first to first + n - 1 of the given type. |
3223 | */ |
3224 | __isl_give isl_setisl_map *isl_set_drop_constraints_not_involving_dims( |
3225 | __isl_take isl_setisl_map *set, |
3226 | enum isl_dim_type type, unsigned first, unsigned n) |
3227 | { |
3228 | return isl_map_drop_constraints_not_involving_dims(set, type, first, n); |
3229 | } |
3230 | |
3231 | /* Does local variable "div" of "bmap" have a complete explicit representation? |
3232 | * Having a complete explicit representation requires not only |
3233 | * an explicit representation, but also that all local variables |
3234 | * that appear in this explicit representation in turn have |
3235 | * a complete explicit representation. |
3236 | */ |
3237 | isl_bool isl_basic_map_div_is_known(__isl_keep isl_basic_map *bmap, int div) |
3238 | { |
3239 | int i; |
3240 | unsigned div_offset = isl_basic_map_offset(bmap, isl_dim_div); |
3241 | isl_bool marked; |
3242 | |
3243 | marked = isl_basic_map_div_is_marked_unknown(bmap, div); |
3244 | if (marked < 0 || marked) |
3245 | return isl_bool_not(marked); |
3246 | |
3247 | for (i = bmap->n_div - 1; i >= 0; --i) { |
3248 | isl_bool known; |
3249 | |
3250 | if (isl_int_is_zero(bmap->div[div][1 + div_offset + i])(isl_sioimath_sgn(*(bmap->div[div][1 + div_offset + i])) == 0)) |
3251 | continue; |
3252 | known = isl_basic_map_div_is_known(bmap, i); |
3253 | if (known < 0 || !known) |
3254 | return known; |
3255 | } |
3256 | |
3257 | return isl_bool_true; |
3258 | } |
3259 | |
3260 | /* Remove all divs that are unknown or defined in terms of unknown divs. |
3261 | */ |
3262 | __isl_give isl_basic_map *isl_basic_map_remove_unknown_divs( |
3263 | __isl_take isl_basic_map *bmap) |
3264 | { |
3265 | int i; |
3266 | |
3267 | if (!bmap) |
3268 | return NULL((void*)0); |
3269 | |
3270 | for (i = bmap->n_div - 1; i >= 0; --i) { |
3271 | if (isl_basic_map_div_is_known(bmap, i)) |
3272 | continue; |
3273 | bmap = isl_basic_map_remove_dims(bmap, isl_dim_div, i, 1); |
3274 | if (!bmap) |
3275 | return NULL((void*)0); |
3276 | i = bmap->n_div; |
3277 | } |
3278 | |
3279 | return bmap; |
3280 | } |
3281 | |
3282 | /* Remove all divs that are unknown or defined in terms of unknown divs. |
3283 | */ |
3284 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_remove_unknown_divs( |
3285 | __isl_take isl_basic_setisl_basic_map *bset) |
3286 | { |
3287 | return isl_basic_map_remove_unknown_divs(bset); |
3288 | } |
3289 | |
3290 | __isl_give isl_map *isl_map_remove_unknown_divs(__isl_take isl_map *map) |
3291 | { |
3292 | int i; |
3293 | |
3294 | if (!map) |
3295 | return NULL((void*)0); |
3296 | if (map->n == 0) |
3297 | return map; |
3298 | |
3299 | map = isl_map_cow(map); |
3300 | if (!map) |
3301 | return NULL((void*)0); |
3302 | |
3303 | for (i = 0; i < map->n; ++i) { |
3304 | map->p[i] = isl_basic_map_remove_unknown_divs(map->p[i]); |
3305 | if (!map->p[i]) |
3306 | goto error; |
3307 | } |
3308 | return map; |
3309 | error: |
3310 | isl_map_free(map); |
3311 | return NULL((void*)0); |
3312 | } |
3313 | |
3314 | __isl_give isl_setisl_map *isl_set_remove_unknown_divs(__isl_take isl_setisl_map *set) |
3315 | { |
3316 | return set_from_map(isl_map_remove_unknown_divs(set_to_map(set))); |
3317 | } |
3318 | |
3319 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_remove_dims( |
3320 | __isl_take isl_basic_setisl_basic_map *bset, |
3321 | enum isl_dim_type type, unsigned first, unsigned n) |
3322 | { |
3323 | isl_basic_map *bmap = bset_to_bmap(bset); |
3324 | bmap = isl_basic_map_remove_dims(bmap, type, first, n); |
3325 | return bset_from_bmap(bmap); |
3326 | } |
3327 | |
3328 | __isl_give isl_map *isl_map_remove_dims(__isl_take isl_map *map, |
3329 | enum isl_dim_type type, unsigned first, unsigned n) |
3330 | { |
3331 | int i; |
3332 | |
3333 | if (n == 0) |
3334 | return map; |
3335 | |
3336 | map = isl_map_cow(map); |
3337 | if (isl_map_check_range(map, type, first, n) < 0) |
3338 | return isl_map_free(map); |
3339 | |
3340 | for (i = 0; i < map->n; ++i) { |
3341 | map->p[i] = isl_basic_map_eliminate_vars(map->p[i], |
3342 | isl_basic_map_offset(map->p[i], type) - 1 + first, n); |
3343 | if (!map->p[i]) |
3344 | goto error; |
3345 | } |
3346 | map = isl_map_drop(map, type, first, n); |
3347 | return map; |
3348 | error: |
3349 | isl_map_free(map); |
3350 | return NULL((void*)0); |
3351 | } |
3352 | |
3353 | __isl_give isl_setisl_map *isl_set_remove_dims(__isl_take isl_setisl_map *bset, |
3354 | enum isl_dim_type type, unsigned first, unsigned n) |
3355 | { |
3356 | return set_from_map(isl_map_remove_dims(set_to_map(bset), |
3357 | type, first, n)); |
3358 | } |
3359 | |
3360 | /* Project out n inputs starting at first using Fourier-Motzkin */ |
3361 | __isl_give isl_map *isl_map_remove_inputs(__isl_take isl_map *map, |
3362 | unsigned first, unsigned n) |
3363 | { |
3364 | return isl_map_remove_dims(map, isl_dim_in, first, n); |
3365 | } |
3366 | |
3367 | void isl_basic_set_print_internal(__isl_keep isl_basic_setisl_basic_map *bset, |
3368 | FILE *out, int indent) |
3369 | { |
3370 | isl_printer *p; |
3371 | |
3372 | if (!bset) { |
3373 | fprintf(out, "null basic set\n")__fprintf_chk (out, 2 - 1, "null basic set\n"); |
3374 | return; |
3375 | } |
3376 | |
3377 | fprintf(out, "%*s", indent, "")__fprintf_chk (out, 2 - 1, "%*s", indent, ""); |
3378 | fprintf(out, "ref: %d, nparam: %d, dim: %d, extra: %d, flags: %x\n",__fprintf_chk (out, 2 - 1, "ref: %d, nparam: %d, dim: %d, extra: %d, flags: %x\n" , bset->ref, bset->dim->nparam, bset->dim->n_out , bset->extra, bset->flags) |
3379 | bset->ref, bset->dim->nparam, bset->dim->n_out,__fprintf_chk (out, 2 - 1, "ref: %d, nparam: %d, dim: %d, extra: %d, flags: %x\n" , bset->ref, bset->dim->nparam, bset->dim->n_out , bset->extra, bset->flags) |
3380 | bset->extra, bset->flags)__fprintf_chk (out, 2 - 1, "ref: %d, nparam: %d, dim: %d, extra: %d, flags: %x\n" , bset->ref, bset->dim->nparam, bset->dim->n_out , bset->extra, bset->flags); |
3381 | |
3382 | p = isl_printer_to_file(isl_basic_set_get_ctx(bset), out); |
3383 | p = isl_printer_set_dump(p, 1); |
3384 | p = isl_printer_set_indent(p, indent); |
3385 | p = isl_printer_start_line(p); |
3386 | p = isl_printer_print_basic_set(p, bset); |
3387 | p = isl_printer_end_line(p); |
3388 | isl_printer_free(p); |
3389 | } |
3390 | |
3391 | void isl_basic_map_print_internal(__isl_keep isl_basic_map *bmap, |
3392 | FILE *out, int indent) |
3393 | { |
3394 | isl_printer *p; |
3395 | |
3396 | if (!bmap) { |
3397 | fprintf(out, "null basic map\n")__fprintf_chk (out, 2 - 1, "null basic map\n"); |
3398 | return; |
3399 | } |
3400 | |
3401 | fprintf(out, "%*s", indent, "")__fprintf_chk (out, 2 - 1, "%*s", indent, ""); |
3402 | fprintf(out, "ref: %d, nparam: %d, in: %d, out: %d, extra: %d, "__fprintf_chk (out, 2 - 1, "ref: %d, nparam: %d, in: %d, out: %d, extra: %d, " "flags: %x, n_name: %d\n", bmap->ref, bmap->dim->nparam , bmap->dim->n_in, bmap->dim->n_out, bmap->extra , bmap->flags, bmap->dim->n_id) |
3403 | "flags: %x, n_name: %d\n",__fprintf_chk (out, 2 - 1, "ref: %d, nparam: %d, in: %d, out: %d, extra: %d, " "flags: %x, n_name: %d\n", bmap->ref, bmap->dim->nparam , bmap->dim->n_in, bmap->dim->n_out, bmap->extra , bmap->flags, bmap->dim->n_id) |
3404 | bmap->ref,__fprintf_chk (out, 2 - 1, "ref: %d, nparam: %d, in: %d, out: %d, extra: %d, " "flags: %x, n_name: %d\n", bmap->ref, bmap->dim->nparam , bmap->dim->n_in, bmap->dim->n_out, bmap->extra , bmap->flags, bmap->dim->n_id) |
3405 | bmap->dim->nparam, bmap->dim->n_in, bmap->dim->n_out,__fprintf_chk (out, 2 - 1, "ref: %d, nparam: %d, in: %d, out: %d, extra: %d, " "flags: %x, n_name: %d\n", bmap->ref, bmap->dim->nparam , bmap->dim->n_in, bmap->dim->n_out, bmap->extra , bmap->flags, bmap->dim->n_id) |
3406 | bmap->extra, bmap->flags, bmap->dim->n_id)__fprintf_chk (out, 2 - 1, "ref: %d, nparam: %d, in: %d, out: %d, extra: %d, " "flags: %x, n_name: %d\n", bmap->ref, bmap->dim->nparam , bmap->dim->n_in, bmap->dim->n_out, bmap->extra , bmap->flags, bmap->dim->n_id); |
3407 | |
3408 | p = isl_printer_to_file(isl_basic_map_get_ctx(bmap), out); |
3409 | p = isl_printer_set_dump(p, 1); |
3410 | p = isl_printer_set_indent(p, indent); |
3411 | p = isl_printer_start_line(p); |
3412 | p = isl_printer_print_basic_map(p, bmap); |
3413 | p = isl_printer_end_line(p); |
3414 | isl_printer_free(p); |
3415 | } |
3416 | |
3417 | __isl_give isl_basic_map *isl_inequality_negate(__isl_take isl_basic_map *bmap, |
3418 | unsigned pos) |
3419 | { |
3420 | isl_size total; |
3421 | |
3422 | total = isl_basic_map_dim(bmap, isl_dim_all); |
3423 | if (total < 0) |
3424 | return isl_basic_map_free(bmap); |
3425 | if (pos >= bmap->n_ineq) |
3426 | isl_die(isl_basic_map_get_ctx(bmap), isl_error_invalid,do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid position", "polly/lib/External/isl/isl_map.c", 3427 ); return isl_basic_map_free(bmap); } while (0) |
3427 | "invalid position", return isl_basic_map_free(bmap))do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "invalid position", "polly/lib/External/isl/isl_map.c", 3427 ); return isl_basic_map_free(bmap); } while (0); |
3428 | isl_seq_neg(bmap->ineq[pos], bmap->ineq[pos], 1 + total); |
3429 | isl_int_sub_ui(bmap->ineq[pos][0], bmap->ineq[pos][0], 1)isl_sioimath_sub_ui((bmap->ineq[pos][0]), *(bmap->ineq[ pos][0]), 1); |
3430 | ISL_F_CLR(bmap, ISL_BASIC_MAP_NO_REDUNDANT)(((bmap)->flags) &= ~((1 << 3))); |
3431 | ISL_F_CLR(bmap, ISL_BASIC_MAP_SORTED)(((bmap)->flags) &= ~((1 << 5))); |
3432 | return bmap; |
3433 | } |
3434 | |
3435 | __isl_give isl_setisl_map *isl_set_alloc_space(__isl_take isl_space *space, int n, |
3436 | unsigned flags) |
3437 | { |
3438 | if (isl_space_check_is_set(space) < 0) |
3439 | goto error; |
3440 | return isl_map_alloc_space(space, n, flags); |
3441 | error: |
3442 | isl_space_free(space); |
3443 | return NULL((void*)0); |
3444 | } |
3445 | |
3446 | /* Make sure "map" has room for at least "n" more basic maps. |
3447 | */ |
3448 | __isl_give isl_map *isl_map_grow(__isl_take isl_map *map, int n) |
3449 | { |
3450 | int i; |
3451 | struct isl_map *grown = NULL((void*)0); |
3452 | |
3453 | if (!map) |
3454 | return NULL((void*)0); |
3455 | isl_assert(map->ctx, n >= 0, goto error)do { if (n >= 0) break; do { isl_handle_error(map->ctx, isl_error_unknown, "Assertion \"" "n >= 0" "\" failed", "polly/lib/External/isl/isl_map.c" , 3455); goto error; } while (0); } while (0); |
3456 | if (map->n + n <= map->size) |
3457 | return map; |
3458 | grown = isl_map_alloc_space(isl_map_get_space(map), map->n + n, map->flags); |
3459 | if (!grown) |
3460 | goto error; |
3461 | for (i = 0; i < map->n; ++i) { |
3462 | grown->p[i] = isl_basic_map_copy(map->p[i]); |
3463 | if (!grown->p[i]) |
3464 | goto error; |
3465 | grown->n++; |
3466 | } |
3467 | isl_map_free(map); |
3468 | return grown; |
3469 | error: |
3470 | isl_map_free(grown); |
3471 | isl_map_free(map); |
3472 | return NULL((void*)0); |
3473 | } |
3474 | |
3475 | /* Make sure "set" has room for at least "n" more basic sets. |
3476 | */ |
3477 | __isl_give isl_setisl_map *isl_set_grow(__isl_take isl_setisl_map *set, int n) |
3478 | { |
3479 | return set_from_map(isl_map_grow(set_to_map(set), n)); |
3480 | } |
3481 | |
3482 | __isl_give isl_setisl_map *isl_set_from_basic_set(__isl_take isl_basic_setisl_basic_map *bset) |
3483 | { |
3484 | return isl_map_from_basic_map(bset); |
3485 | } |
3486 | |
3487 | /* This function performs the same operation as isl_set_from_basic_set, |
3488 | * but is considered as a function on an isl_basic_set when exported. |
3489 | */ |
3490 | __isl_give isl_setisl_map *isl_basic_set_to_set(__isl_take isl_basic_setisl_basic_map *bset) |
3491 | { |
3492 | return isl_set_from_basic_set(bset); |
3493 | } |
3494 | |
3495 | __isl_give isl_map *isl_map_from_basic_map(__isl_take isl_basic_map *bmap) |
3496 | { |
3497 | struct isl_map *map; |
3498 | |
3499 | if (!bmap) |
3500 | return NULL((void*)0); |
3501 | |
3502 | map = isl_map_alloc_space(isl_space_copy(bmap->dim), 1, ISL_MAP_DISJOINT(1 << 0)); |
3503 | return isl_map_add_basic_map(map, bmap); |
3504 | } |
3505 | |
3506 | __isl_give isl_setisl_map *isl_set_add_basic_set(__isl_take isl_setisl_map *set, |
3507 | __isl_take isl_basic_setisl_basic_map *bset) |
3508 | { |
3509 | return set_from_map(isl_map_add_basic_map(set_to_map(set), |
3510 | bset_to_bmap(bset))); |
3511 | } |
3512 | |
3513 | __isl_null isl_setisl_map *isl_set_free(__isl_take isl_setisl_map *set) |
3514 | { |
3515 | return isl_map_free(set); |
3516 | } |
3517 | |
3518 | void isl_set_print_internal(__isl_keep isl_setisl_map *set, FILE *out, int indent) |
3519 | { |
3520 | int i; |
3521 | |
3522 | if (!set) { |
3523 | fprintf(out, "null set\n")__fprintf_chk (out, 2 - 1, "null set\n"); |
3524 | return; |
3525 | } |
3526 | |
3527 | fprintf(out, "%*s", indent, "")__fprintf_chk (out, 2 - 1, "%*s", indent, ""); |
3528 | fprintf(out, "ref: %d, n: %d, nparam: %d, dim: %d, flags: %x\n",__fprintf_chk (out, 2 - 1, "ref: %d, n: %d, nparam: %d, dim: %d, flags: %x\n" , set->ref, set->n, set->dim->nparam, set->dim ->n_out, set->flags) |
3529 | set->ref, set->n, set->dim->nparam, set->dim->n_out,__fprintf_chk (out, 2 - 1, "ref: %d, n: %d, nparam: %d, dim: %d, flags: %x\n" , set->ref, set->n, set->dim->nparam, set->dim ->n_out, set->flags) |
3530 | set->flags)__fprintf_chk (out, 2 - 1, "ref: %d, n: %d, nparam: %d, dim: %d, flags: %x\n" , set->ref, set->n, set->dim->nparam, set->dim ->n_out, set->flags); |
3531 | for (i = 0; i < set->n; ++i) { |
3532 | fprintf(out, "%*s", indent, "")__fprintf_chk (out, 2 - 1, "%*s", indent, ""); |
3533 | fprintf(out, "basic set %d:\n", i)__fprintf_chk (out, 2 - 1, "basic set %d:\n", i); |
3534 | isl_basic_set_print_internal(set->p[i], out, indent+4); |
3535 | } |
3536 | } |
3537 | |
3538 | void isl_map_print_internal(__isl_keep isl_map *map, FILE *out, int indent) |
3539 | { |
3540 | int i; |
3541 | |
3542 | if (!map) { |
3543 | fprintf(out, "null map\n")__fprintf_chk (out, 2 - 1, "null map\n"); |
3544 | return; |
3545 | } |
3546 | |
3547 | fprintf(out, "%*s", indent, "")__fprintf_chk (out, 2 - 1, "%*s", indent, ""); |
3548 | fprintf(out, "ref: %d, n: %d, nparam: %d, in: %d, out: %d, "__fprintf_chk (out, 2 - 1, "ref: %d, n: %d, nparam: %d, in: %d, out: %d, " "flags: %x, n_name: %d\n", map->ref, map->n, map->dim ->nparam, map->dim->n_in, map->dim->n_out, map ->flags, map->dim->n_id) |
3549 | "flags: %x, n_name: %d\n",__fprintf_chk (out, 2 - 1, "ref: %d, n: %d, nparam: %d, in: %d, out: %d, " "flags: %x, n_name: %d\n", map->ref, map->n, map->dim ->nparam, map->dim->n_in, map->dim->n_out, map ->flags, map->dim->n_id) |
3550 | map->ref, map->n, map->dim->nparam, map->dim->n_in,__fprintf_chk (out, 2 - 1, "ref: %d, n: %d, nparam: %d, in: %d, out: %d, " "flags: %x, n_name: %d\n", map->ref, map->n, map->dim ->nparam, map->dim->n_in, map->dim->n_out, map ->flags, map->dim->n_id) |
3551 | map->dim->n_out, map->flags, map->dim->n_id)__fprintf_chk (out, 2 - 1, "ref: %d, n: %d, nparam: %d, in: %d, out: %d, " "flags: %x, n_name: %d\n", map->ref, map->n, map->dim ->nparam, map->dim->n_in, map->dim->n_out, map ->flags, map->dim->n_id); |
3552 | for (i = 0; i < map->n; ++i) { |
3553 | fprintf(out, "%*s", indent, "")__fprintf_chk (out, 2 - 1, "%*s", indent, ""); |
3554 | fprintf(out, "basic map %d:\n", i)__fprintf_chk (out, 2 - 1, "basic map %d:\n", i); |
3555 | isl_basic_map_print_internal(map->p[i], out, indent+4); |
3556 | } |
3557 | } |
3558 | |
3559 | /* Check that the space of "bset" is the same as that of the domain of "bmap". |
3560 | */ |
3561 | static isl_stat isl_basic_map_check_compatible_domain( |
3562 | __isl_keep isl_basic_map *bmap, __isl_keep isl_basic_setisl_basic_map *bset) |
3563 | { |
3564 | isl_bool ok; |
3565 | |
3566 | ok = isl_basic_map_compatible_domain(bmap, bset); |
3567 | if (ok < 0) |
3568 | return isl_stat_error; |
3569 | if (!ok) |
3570 | isl_die(isl_basic_set_get_ctx(bset), isl_error_invalid,do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "incompatible spaces", "polly/lib/External/isl/isl_map.c", 3571 ); return isl_stat_error; } while (0) |
3571 | "incompatible spaces", return isl_stat_error)do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "incompatible spaces", "polly/lib/External/isl/isl_map.c", 3571 ); return isl_stat_error; } while (0); |
3572 | |
3573 | return isl_stat_ok; |
3574 | } |
3575 | |
3576 | __isl_give isl_basic_map *isl_basic_map_intersect_domain( |
3577 | __isl_take isl_basic_map *bmap, __isl_take isl_basic_setisl_basic_map *bset) |
3578 | { |
3579 | struct isl_basic_map *bmap_domain; |
3580 | isl_size dim; |
3581 | |
3582 | if (isl_basic_map_check_equal_params(bmap, bset_to_bmap(bset)) < 0) |
3583 | goto error; |
3584 | |
3585 | dim = isl_basic_set_dim(bset, isl_dim_set); |
3586 | if (dim < 0) |
3587 | goto error; |
3588 | if (dim != 0 && |
3589 | isl_basic_map_check_compatible_domain(bmap, bset) < 0) |
3590 | goto error; |
3591 | |
3592 | bmap = isl_basic_map_cow(bmap); |
3593 | if (!bmap) |
3594 | goto error; |
3595 | bmap = isl_basic_map_extend(bmap, |
3596 | bset->n_div, bset->n_eq, bset->n_ineq); |
3597 | bmap_domain = isl_basic_map_from_domain(bset); |
3598 | bmap = add_constraints(bmap, bmap_domain, 0, 0); |
3599 | |
3600 | bmap = isl_basic_map_simplify(bmap); |
3601 | return isl_basic_map_finalize(bmap); |
3602 | error: |
3603 | isl_basic_map_free(bmap); |
3604 | isl_basic_set_free(bset); |
3605 | return NULL((void*)0); |
3606 | } |
3607 | |
3608 | /* Check that the space of "bset" is the same as that of the range of "bmap". |
3609 | */ |
3610 | static isl_stat isl_basic_map_check_compatible_range( |
3611 | __isl_keep isl_basic_map *bmap, __isl_keep isl_basic_setisl_basic_map *bset) |
3612 | { |
3613 | isl_bool ok; |
3614 | |
3615 | ok = isl_basic_map_compatible_range(bmap, bset); |
3616 | if (ok < 0) |
3617 | return isl_stat_error; |
3618 | if (!ok) |
3619 | isl_die(isl_basic_set_get_ctx(bset), isl_error_invalid,do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "incompatible spaces", "polly/lib/External/isl/isl_map.c", 3620 ); return isl_stat_error; } while (0) |
3620 | "incompatible spaces", return isl_stat_error)do { isl_handle_error(isl_basic_set_get_ctx(bset), isl_error_invalid , "incompatible spaces", "polly/lib/External/isl/isl_map.c", 3620 ); return isl_stat_error; } while (0); |
3621 | |
3622 | return isl_stat_ok; |
3623 | } |
3624 | |
3625 | __isl_give isl_basic_map *isl_basic_map_intersect_range( |
3626 | __isl_take isl_basic_map *bmap, __isl_take isl_basic_setisl_basic_map *bset) |
3627 | { |
3628 | struct isl_basic_map *bmap_range; |
3629 | isl_size dim; |
3630 | |
3631 | if (isl_basic_map_check_equal_params(bmap, bset_to_bmap(bset)) < 0) |
3632 | goto error; |
3633 | |
3634 | dim = isl_basic_set_dim(bset, isl_dim_set); |
3635 | if (dim < 0) |
3636 | goto error; |
3637 | if (dim != 0 && isl_basic_map_check_compatible_range(bmap, bset) < 0) |
3638 | goto error; |
3639 | |
3640 | if (isl_basic_set_plain_is_universe(bset)) { |
3641 | isl_basic_set_free(bset); |
3642 | return bmap; |
3643 | } |
3644 | |
3645 | bmap = isl_basic_map_cow(bmap); |
3646 | if (!bmap) |
3647 | goto error; |
3648 | bmap = isl_basic_map_extend(bmap, |
3649 | bset->n_div, bset->n_eq, bset->n_ineq); |
3650 | bmap_range = bset_to_bmap(bset); |
3651 | bmap = add_constraints(bmap, bmap_range, 0, 0); |
3652 | |
3653 | bmap = isl_basic_map_simplify(bmap); |
3654 | return isl_basic_map_finalize(bmap); |
3655 | error: |
3656 | isl_basic_map_free(bmap); |
3657 | isl_basic_set_free(bset); |
3658 | return NULL((void*)0); |
3659 | } |
3660 | |
3661 | isl_bool isl_basic_map_contains(__isl_keep isl_basic_map *bmap, |
3662 | __isl_keep isl_vec *vec) |
3663 | { |
3664 | int i; |
3665 | isl_size total; |
3666 | isl_int s; |
3667 | |
3668 | total = isl_basic_map_dim(bmap, isl_dim_all); |
3669 | if (total < 0 || !vec) |
3670 | return isl_bool_error; |
3671 | |
3672 | if (1 + total != vec->size) |
3673 | return isl_bool_false; |
3674 | |
3675 | isl_int_init(s)isl_sioimath_init((s)); |
3676 | |
3677 | for (i = 0; i < bmap->n_eq; ++i) { |
3678 | isl_seq_inner_product(vec->el, bmap->eq[i], 1 + total, &s); |
3679 | if (!isl_int_is_zero(s)(isl_sioimath_sgn(*(s)) == 0)) { |
3680 | isl_int_clear(s)isl_sioimath_clear((s)); |
3681 | return isl_bool_false; |
3682 | } |
3683 | } |
3684 | |
3685 | for (i = 0; i < bmap->n_ineq; ++i) { |
3686 | isl_seq_inner_product(vec->el, bmap->ineq[i], 1 + total, &s); |
3687 | if (isl_int_is_neg(s)(isl_sioimath_sgn(*(s)) < 0)) { |
3688 | isl_int_clear(s)isl_sioimath_clear((s)); |
3689 | return isl_bool_false; |
3690 | } |
3691 | } |
3692 | |
3693 | isl_int_clear(s)isl_sioimath_clear((s)); |
3694 | |
3695 | return isl_bool_true; |
3696 | } |
3697 | |
3698 | isl_bool isl_basic_set_contains(__isl_keep isl_basic_setisl_basic_map *bset, |
3699 | __isl_keep isl_vec *vec) |
3700 | { |
3701 | return isl_basic_map_contains(bset_to_bmap(bset), vec); |
3702 | } |
3703 | |
3704 | __isl_give isl_basic_map *isl_basic_map_intersect( |
3705 | __isl_take isl_basic_map *bmap1, __isl_take isl_basic_map *bmap2) |
3706 | { |
3707 | struct isl_vec *sample = NULL((void*)0); |
3708 | isl_space *space1, *space2; |
3709 | isl_size dim1, dim2, nparam1, nparam2; |
3710 | |
3711 | if (isl_basic_map_check_equal_params(bmap1, bmap2) < 0) |
3712 | goto error; |
3713 | space1 = isl_basic_map_peek_space(bmap1); |
3714 | space2 = isl_basic_map_peek_space(bmap2); |
3715 | dim1 = isl_space_dim(space1, isl_dim_all); |
3716 | dim2 = isl_space_dim(space2, isl_dim_all); |
3717 | nparam1 = isl_space_dim(space1, isl_dim_param); |
3718 | nparam2 = isl_space_dim(space2, isl_dim_param); |
3719 | if (dim1 < 0 || dim2 < 0 || nparam1 < 0 || nparam2 < 0) |
3720 | goto error; |
3721 | if (dim1 == nparam1 && dim2 != nparam2) |
3722 | return isl_basic_map_intersect(bmap2, bmap1); |
3723 | |
3724 | if (dim2 != nparam2 && |
3725 | isl_basic_map_check_equal_space(bmap1, bmap2) < 0) |
3726 | goto error; |
3727 | |
3728 | if (isl_basic_map_plain_is_empty(bmap1)) { |
3729 | isl_basic_map_free(bmap2); |
3730 | return bmap1; |
3731 | } |
3732 | if (isl_basic_map_plain_is_empty(bmap2)) { |
3733 | isl_basic_map_free(bmap1); |
3734 | return bmap2; |
3735 | } |
3736 | |
3737 | if (bmap1->sample && |
3738 | isl_basic_map_contains(bmap1, bmap1->sample) > 0 && |
3739 | isl_basic_map_contains(bmap2, bmap1->sample) > 0) |
3740 | sample = isl_vec_copy(bmap1->sample); |
3741 | else if (bmap2->sample && |
3742 | isl_basic_map_contains(bmap1, bmap2->sample) > 0 && |
3743 | isl_basic_map_contains(bmap2, bmap2->sample) > 0) |
3744 | sample = isl_vec_copy(bmap2->sample); |
3745 | |
3746 | bmap1 = isl_basic_map_cow(bmap1); |
3747 | if (!bmap1) |
3748 | goto error; |
3749 | bmap1 = isl_basic_map_extend(bmap1, |
3750 | bmap2->n_div, bmap2->n_eq, bmap2->n_ineq); |
3751 | bmap1 = add_constraints(bmap1, bmap2, 0, 0); |
3752 | |
3753 | if (!bmap1) |
3754 | isl_vec_free(sample); |
3755 | else if (sample) { |
3756 | isl_vec_free(bmap1->sample); |
3757 | bmap1->sample = sample; |
3758 | } |
3759 | |
3760 | bmap1 = isl_basic_map_simplify(bmap1); |
3761 | return isl_basic_map_finalize(bmap1); |
3762 | error: |
3763 | if (sample) |
3764 | isl_vec_free(sample); |
3765 | isl_basic_map_free(bmap1); |
3766 | isl_basic_map_free(bmap2); |
3767 | return NULL((void*)0); |
3768 | } |
3769 | |
3770 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_intersect( |
3771 | __isl_take isl_basic_setisl_basic_map *bset1, __isl_take isl_basic_setisl_basic_map *bset2) |
3772 | { |
3773 | return bset_from_bmap(isl_basic_map_intersect(bset_to_bmap(bset1), |
3774 | bset_to_bmap(bset2))); |
3775 | } |
3776 | |
3777 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_intersect_params( |
3778 | __isl_take isl_basic_setisl_basic_map *bset1, __isl_take isl_basic_setisl_basic_map *bset2) |
3779 | { |
3780 | return isl_basic_set_intersect(bset1, bset2); |
3781 | } |
3782 | |
3783 | /* Does "map" consist of a single disjunct, without any local variables? |
3784 | */ |
3785 | static isl_bool is_convex_no_locals(__isl_keep isl_map *map) |
3786 | { |
3787 | isl_size n_div; |
3788 | |
3789 | if (!map) |
3790 | return isl_bool_error; |
3791 | if (map->n != 1) |
3792 | return isl_bool_false; |
3793 | n_div = isl_basic_map_dim(map->p[0], isl_dim_div); |
3794 | if (n_div < 0) |
3795 | return isl_bool_error; |
3796 | if (n_div != 0) |
3797 | return isl_bool_false; |
3798 | return isl_bool_true; |
3799 | } |
3800 | |
3801 | /* Check that "map" consists of a single disjunct, without any local variables. |
3802 | */ |
3803 | static isl_stat check_convex_no_locals(__isl_keep isl_map *map) |
3804 | { |
3805 | isl_bool ok; |
3806 | |
3807 | ok = is_convex_no_locals(map); |
3808 | if (ok < 0) |
3809 | return isl_stat_error; |
3810 | if (ok) |
3811 | return isl_stat_ok; |
3812 | |
3813 | isl_die(isl_map_get_ctx(map), isl_error_internal,do { isl_handle_error(isl_map_get_ctx(map), isl_error_internal , "unexpectedly not convex or involving local variables", "polly/lib/External/isl/isl_map.c" , 3815); return isl_stat_error; } while (0) |
3814 | "unexpectedly not convex or involving local variables",do { isl_handle_error(isl_map_get_ctx(map), isl_error_internal , "unexpectedly not convex or involving local variables", "polly/lib/External/isl/isl_map.c" , 3815); return isl_stat_error; } while (0) |
3815 | return isl_stat_error)do { isl_handle_error(isl_map_get_ctx(map), isl_error_internal , "unexpectedly not convex or involving local variables", "polly/lib/External/isl/isl_map.c" , 3815); return isl_stat_error; } while (0); |
3816 | } |
3817 | |
3818 | /* Special case of isl_map_intersect, where both map1 and map2 |
3819 | * are convex, without any divs and such that either map1 or map2 |
3820 | * contains a single constraint. This constraint is then simply |
3821 | * added to the other map. |
3822 | */ |
3823 | static __isl_give isl_map *map_intersect_add_constraint( |
3824 | __isl_take isl_map *map1, __isl_take isl_map *map2) |
3825 | { |
3826 | if (check_convex_no_locals(map1) < 0 || |
3827 | check_convex_no_locals(map2) < 0) |
3828 | goto error; |
3829 | |
3830 | if (map2->p[0]->n_eq + map2->p[0]->n_ineq != 1) |
3831 | return isl_map_intersect(map2, map1); |
3832 | |
3833 | map1 = isl_map_cow(map1); |
3834 | if (!map1) |
3835 | goto error; |
3836 | if (isl_map_plain_is_empty(map1)) { |
3837 | isl_map_free(map2); |
3838 | return map1; |
3839 | } |
3840 | if (map2->p[0]->n_eq == 1) |
3841 | map1->p[0] = isl_basic_map_add_eq(map1->p[0], map2->p[0]->eq[0]); |
3842 | else |
3843 | map1->p[0] = isl_basic_map_add_ineq(map1->p[0], |
3844 | map2->p[0]->ineq[0]); |
3845 | |
3846 | map1->p[0] = isl_basic_map_simplify(map1->p[0]); |
3847 | map1->p[0] = isl_basic_map_finalize(map1->p[0]); |
3848 | if (!map1->p[0]) |
3849 | goto error; |
3850 | |
3851 | if (isl_basic_map_plain_is_empty(map1->p[0])) { |
3852 | isl_basic_map_free(map1->p[0]); |
3853 | map1->n = 0; |
3854 | } |
3855 | |
3856 | isl_map_free(map2); |
3857 | |
3858 | map1 = isl_map_unmark_normalized(map1); |
3859 | return map1; |
3860 | error: |
3861 | isl_map_free(map1); |
3862 | isl_map_free(map2); |
3863 | return NULL((void*)0); |
3864 | } |
3865 | |
3866 | /* map2 may be either a parameter domain or a map living in the same |
3867 | * space as map1. |
3868 | */ |
3869 | static __isl_give isl_map *map_intersect_internal(__isl_take isl_map *map1, |
3870 | __isl_take isl_map *map2) |
3871 | { |
3872 | unsigned flags = 0; |
3873 | isl_bool equal; |
3874 | isl_map *result; |
3875 | int i, j; |
3876 | isl_size dim2, nparam2; |
3877 | |
3878 | if (!map1 || !map2) |
3879 | goto error; |
3880 | |
3881 | if ((isl_map_plain_is_empty(map1) || |
3882 | isl_map_plain_is_universe(map2)) && |
3883 | isl_space_is_equal(map1->dim, map2->dim)) { |
3884 | isl_map_free(map2); |
3885 | return map1; |
3886 | } |
3887 | if ((isl_map_plain_is_empty(map2) || |
3888 | isl_map_plain_is_universe(map1)) && |
3889 | isl_space_is_equal(map1->dim, map2->dim)) { |
3890 | isl_map_free(map1); |
3891 | return map2; |
3892 | } |
3893 | |
3894 | if (is_convex_no_locals(map1) == isl_bool_true && |
3895 | is_convex_no_locals(map2) == isl_bool_true && |
3896 | isl_space_is_equal(map1->dim, map2->dim) && |
3897 | (map1->p[0]->n_eq + map1->p[0]->n_ineq == 1 || |
3898 | map2->p[0]->n_eq + map2->p[0]->n_ineq == 1)) |
3899 | return map_intersect_add_constraint(map1, map2); |
3900 | |
3901 | equal = isl_map_plain_is_equal(map1, map2); |
3902 | if (equal < 0) |
3903 | goto error; |
3904 | if (equal) { |
3905 | isl_map_free(map2); |
3906 | return map1; |
3907 | } |
3908 | |
3909 | dim2 = isl_map_dim(map2, isl_dim_all); |
3910 | nparam2 = isl_map_dim(map2, isl_dim_param); |
3911 | if (dim2 < 0 || nparam2 < 0) |
3912 | goto error; |
3913 | if (dim2 != nparam2) |
3914 | isl_assert(map1->ctx,do { if (isl_space_is_equal(map1->dim, map2->dim)) break ; do { isl_handle_error(map1->ctx, isl_error_unknown, "Assertion \"" "isl_space_is_equal(map1->dim, map2->dim)" "\" failed" , "polly/lib/External/isl/isl_map.c", 3915); goto error; } while (0); } while (0) |
3915 | isl_space_is_equal(map1->dim, map2->dim), goto error)do { if (isl_space_is_equal(map1->dim, map2->dim)) break ; do { isl_handle_error(map1->ctx, isl_error_unknown, "Assertion \"" "isl_space_is_equal(map1->dim, map2->dim)" "\" failed" , "polly/lib/External/isl/isl_map.c", 3915); goto error; } while (0); } while (0); |
3916 | |
3917 | if (ISL_F_ISSET(map1, ISL_MAP_DISJOINT)(!!(((map1)->flags) & ((1 << 0)))) && |
3918 | ISL_F_ISSET(map2, ISL_MAP_DISJOINT)(!!(((map2)->flags) & ((1 << 0))))) |
3919 | ISL_FL_SET(flags, ISL_MAP_DISJOINT)((flags) |= ((1 << 0))); |
3920 | |
3921 | result = isl_map_alloc_space(isl_space_copy(map1->dim), |
3922 | map1->n * map2->n, flags); |
3923 | if (!result) |
3924 | goto error; |
3925 | for (i = 0; i < map1->n; ++i) |
3926 | for (j = 0; j < map2->n; ++j) { |
3927 | struct isl_basic_map *part; |
3928 | part = isl_basic_map_intersect( |
3929 | isl_basic_map_copy(map1->p[i]), |
3930 | isl_basic_map_copy(map2->p[j])); |
3931 | if (isl_basic_map_is_empty(part) < 0) |
3932 | part = isl_basic_map_free(part); |
3933 | result = isl_map_add_basic_map(result, part); |
3934 | if (!result) |
3935 | goto error; |
3936 | } |
3937 | isl_map_free(map1); |
3938 | isl_map_free(map2); |
3939 | return result; |
3940 | error: |
3941 | isl_map_free(map1); |
3942 | isl_map_free(map2); |
3943 | return NULL((void*)0); |
3944 | } |
3945 | |
3946 | static __isl_give isl_map *map_intersect(__isl_take isl_map *map1, |
3947 | __isl_take isl_map *map2) |
3948 | { |
3949 | if (isl_map_check_equal_space(map1, map2) < 0) |
3950 | goto error; |
3951 | return map_intersect_internal(map1, map2); |
3952 | error: |
3953 | isl_map_free(map1); |
3954 | isl_map_free(map2); |
3955 | return NULL((void*)0); |
3956 | } |
3957 | |
3958 | __isl_give isl_map *isl_map_intersect(__isl_take isl_map *map1, |
3959 | __isl_take isl_map *map2) |
3960 | { |
3961 | isl_map_align_params_bin(&map1, &map2); |
3962 | return map_intersect(map1, map2); |
3963 | } |
3964 | |
3965 | __isl_give isl_setisl_map *isl_set_intersect(__isl_take isl_setisl_map *set1, |
3966 | __isl_take isl_setisl_map *set2) |
3967 | { |
3968 | return set_from_map(isl_map_intersect(set_to_map(set1), |
3969 | set_to_map(set2))); |
3970 | } |
3971 | |
3972 | /* map_intersect_internal accepts intersections |
3973 | * with parameter domains, so we can just call that function. |
3974 | */ |
3975 | __isl_give isl_map *isl_map_intersect_params(__isl_take isl_map *map, |
3976 | __isl_take isl_setisl_map *params) |
3977 | { |
3978 | isl_map_align_params_set(&map, ¶ms); |
3979 | return map_intersect_internal(map, params); |
3980 | } |
3981 | |
3982 | __isl_give isl_setisl_map *isl_set_intersect_params(__isl_take isl_setisl_map *set, |
3983 | __isl_take isl_setisl_map *params) |
3984 | { |
3985 | return isl_map_intersect_params(set, params); |
3986 | } |
3987 | |
3988 | __isl_give isl_basic_map *isl_basic_map_reverse(__isl_take isl_basic_map *bmap) |
3989 | { |
3990 | isl_space *space; |
3991 | unsigned pos; |
3992 | isl_size n1, n2; |
3993 | |
3994 | if (!bmap) |
3995 | return NULL((void*)0); |
3996 | bmap = isl_basic_map_cow(bmap); |
3997 | if (!bmap) |
3998 | return NULL((void*)0); |
3999 | space = isl_space_reverse(isl_space_copy(bmap->dim)); |
4000 | pos = isl_basic_map_offset(bmap, isl_dim_in); |
4001 | n1 = isl_basic_map_dim(bmap, isl_dim_in); |
4002 | n2 = isl_basic_map_dim(bmap, isl_dim_out); |
4003 | if (n1 < 0 || n2 < 0) |
4004 | bmap = isl_basic_map_free(bmap); |
4005 | bmap = isl_basic_map_swap_vars(bmap, pos, n1, n2); |
4006 | return isl_basic_map_reset_space(bmap, space); |
4007 | } |
4008 | |
4009 | /* Given a basic map A -> (B -> C), return the corresponding basic map |
4010 | * A -> (C -> B). |
4011 | */ |
4012 | static __isl_give isl_basic_map *isl_basic_map_range_reverse( |
4013 | __isl_take isl_basic_map *bmap) |
4014 | { |
4015 | isl_space *space; |
4016 | isl_size offset, n1, n2; |
4017 | |
4018 | space = isl_basic_map_peek_space(bmap); |
4019 | if (isl_space_check_range_is_wrapping(space) < 0) |
4020 | return isl_basic_map_free(bmap); |
4021 | offset = isl_basic_map_var_offset(bmap, isl_dim_out); |
4022 | n1 = isl_space_wrapped_dim(space, isl_dim_out, isl_dim_in); |
4023 | n2 = isl_space_wrapped_dim(space, isl_dim_out, isl_dim_out); |
4024 | if (offset < 0 || n1 < 0 || n2 < 0) |
4025 | return isl_basic_map_free(bmap); |
4026 | |
4027 | bmap = isl_basic_map_swap_vars(bmap, 1 + offset, n1, n2); |
4028 | |
4029 | space = isl_basic_map_take_space(bmap); |
4030 | space = isl_space_range_reverse(space); |
4031 | bmap = isl_basic_map_restore_space(bmap, space); |
4032 | |
4033 | return bmap; |
4034 | } |
4035 | |
4036 | static __isl_give isl_basic_map *basic_map_space_reset( |
4037 | __isl_take isl_basic_map *bmap, enum isl_dim_type type) |
4038 | { |
4039 | isl_space *space; |
4040 | |
4041 | if (!bmap) |
4042 | return NULL((void*)0); |
4043 | if (!isl_space_is_named_or_nested(bmap->dim, type)) |
4044 | return bmap; |
4045 | |
4046 | space = isl_basic_map_get_space(bmap); |
4047 | space = isl_space_reset(space, type); |
4048 | bmap = isl_basic_map_reset_space(bmap, space); |
4049 | return bmap; |
4050 | } |
4051 | |
4052 | __isl_give isl_basic_map *isl_basic_map_insert_dims( |
4053 | __isl_take isl_basic_map *bmap, enum isl_dim_type type, |
4054 | unsigned pos, unsigned n) |
4055 | { |
4056 | isl_bool rational, is_empty; |
4057 | isl_space *res_space; |
4058 | struct isl_basic_map *res; |
4059 | struct isl_dim_map *dim_map; |
4060 | isl_size total; |
4061 | unsigned off; |
4062 | enum isl_dim_type t; |
4063 | |
4064 | if (n == 0) |
4065 | return basic_map_space_reset(bmap, type); |
4066 | |
4067 | is_empty = isl_basic_map_plain_is_empty(bmap); |
4068 | total = isl_basic_map_dim(bmap, isl_dim_all); |
4069 | if (is_empty < 0 || total < 0) |
4070 | return isl_basic_map_free(bmap); |
4071 | res_space = isl_space_insert_dims(isl_basic_map_get_space(bmap), |
4072 | type, pos, n); |
4073 | if (!res_space) |
4074 | return isl_basic_map_free(bmap); |
4075 | if (is_empty) { |
4076 | isl_basic_map_free(bmap); |
4077 | return isl_basic_map_empty(res_space); |
4078 | } |
4079 | |
4080 | dim_map = isl_dim_map_alloc(bmap->ctx, total + n); |
4081 | off = 0; |
4082 | for (t = isl_dim_param; t <= isl_dim_out; ++t) { |
4083 | isl_size dim; |
4084 | |
4085 | if (t != type) { |
4086 | isl_dim_map_dim(dim_map, bmap->dim, t, off); |
4087 | } else { |
4088 | isl_size size = isl_basic_map_dim(bmap, t); |
4089 | if (size < 0) |
4090 | dim_map = isl_dim_map_free(dim_map); |
4091 | isl_dim_map_dim_range(dim_map, bmap->dim, t, |
4092 | 0, pos, off); |
4093 | isl_dim_map_dim_range(dim_map, bmap->dim, t, |
4094 | pos, size - pos, off + pos + n); |
4095 | } |
4096 | dim = isl_space_dim(res_space, t); |
4097 | if (dim < 0) |
4098 | dim_map = isl_dim_map_free(dim_map); |
4099 | off += dim; |
4100 | } |
4101 | isl_dim_map_div(dim_map, bmap, off); |
4102 | |
4103 | res = isl_basic_map_alloc_space(res_space, |
4104 | bmap->n_div, bmap->n_eq, bmap->n_ineq); |
4105 | rational = isl_basic_map_is_rational(bmap); |
4106 | if (rational < 0) |
4107 | res = isl_basic_map_free(res); |
4108 | if (rational) |
4109 | res = isl_basic_map_set_rational(res); |
4110 | res = isl_basic_map_add_constraints_dim_map(res, bmap, dim_map); |
4111 | return isl_basic_map_finalize(res); |
4112 | } |
4113 | |
4114 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_insert_dims( |
4115 | __isl_take isl_basic_setisl_basic_map *bset, |
4116 | enum isl_dim_type type, unsigned pos, unsigned n) |
4117 | { |
4118 | return isl_basic_map_insert_dims(bset, type, pos, n); |
4119 | } |
4120 | |
4121 | __isl_give isl_basic_map *isl_basic_map_add_dims(__isl_take isl_basic_map *bmap, |
4122 | enum isl_dim_type type, unsigned n) |
4123 | { |
4124 | isl_size dim; |
4125 | |
4126 | dim = isl_basic_map_dim(bmap, type); |
4127 | if (dim < 0) |
4128 | return isl_basic_map_free(bmap); |
4129 | return isl_basic_map_insert_dims(bmap, type, dim, n); |
4130 | } |
4131 | |
4132 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_add_dims(__isl_take isl_basic_setisl_basic_map *bset, |
4133 | enum isl_dim_type type, unsigned n) |
4134 | { |
4135 | if (!bset) |
4136 | return NULL((void*)0); |
4137 | isl_assert(bset->ctx, type != isl_dim_in, goto error)do { if (type != isl_dim_in) break; do { isl_handle_error(bset ->ctx, isl_error_unknown, "Assertion \"" "type != isl_dim_in" "\" failed", "polly/lib/External/isl/isl_map.c", 4137); goto error; } while (0); } while (0); |
4138 | return isl_basic_map_add_dims(bset, type, n); |
4139 | error: |
4140 | isl_basic_set_free(bset); |
4141 | return NULL((void*)0); |
4142 | } |
4143 | |
4144 | static __isl_give isl_map *map_space_reset(__isl_take isl_map *map, |
4145 | enum isl_dim_type type) |
4146 | { |
4147 | isl_space *space; |
4148 | |
4149 | if (!map || !isl_space_is_named_or_nested(map->dim, type)) |
4150 | return map; |
4151 | |
4152 | space = isl_map_get_space(map); |
4153 | space = isl_space_reset(space, type); |
4154 | map = isl_map_reset_space(map, space); |
4155 | return map; |
4156 | } |
4157 | |
4158 | __isl_give isl_map *isl_map_insert_dims(__isl_take isl_map *map, |
4159 | enum isl_dim_type type, unsigned pos, unsigned n) |
4160 | { |
4161 | int i; |
4162 | isl_space *space; |
4163 | |
4164 | if (n == 0) |
4165 | return map_space_reset(map, type); |
4166 | |
4167 | map = isl_map_cow(map); |
4168 | if (!map) |
4169 | return NULL((void*)0); |
4170 | |
4171 | for (i = 0; i < map->n; ++i) { |
4172 | map->p[i] = isl_basic_map_insert_dims(map->p[i], type, pos, n); |
4173 | if (!map->p[i]) |
4174 | goto error; |
4175 | } |
4176 | |
4177 | space = isl_map_take_space(map); |
4178 | space = isl_space_insert_dims(space, type, pos, n); |
4179 | map = isl_map_restore_space(map, space); |
4180 | |
4181 | return map; |
4182 | error: |
4183 | isl_map_free(map); |
4184 | return NULL((void*)0); |
4185 | } |
4186 | |
4187 | __isl_give isl_setisl_map *isl_set_insert_dims(__isl_take isl_setisl_map *set, |
4188 | enum isl_dim_type type, unsigned pos, unsigned n) |
4189 | { |
4190 | return isl_map_insert_dims(set, type, pos, n); |
4191 | } |
4192 | |
4193 | __isl_give isl_map *isl_map_add_dims(__isl_take isl_map *map, |
4194 | enum isl_dim_type type, unsigned n) |
4195 | { |
4196 | isl_size dim; |
4197 | |
4198 | dim = isl_map_dim(map, type); |
4199 | if (dim < 0) |
4200 | return isl_map_free(map); |
4201 | return isl_map_insert_dims(map, type, dim, n); |
4202 | } |
4203 | |
4204 | __isl_give isl_setisl_map *isl_set_add_dims(__isl_take isl_setisl_map *set, |
4205 | enum isl_dim_type type, unsigned n) |
4206 | { |
4207 | if (!set) |
4208 | return NULL((void*)0); |
4209 | isl_assert(set->ctx, type != isl_dim_in, goto error)do { if (type != isl_dim_in) break; do { isl_handle_error(set ->ctx, isl_error_unknown, "Assertion \"" "type != isl_dim_in" "\" failed", "polly/lib/External/isl/isl_map.c", 4209); goto error; } while (0); } while (0); |
4210 | return set_from_map(isl_map_add_dims(set_to_map(set), type, n)); |
4211 | error: |
4212 | isl_set_free(set); |
4213 | return NULL((void*)0); |
4214 | } |
4215 | |
4216 | __isl_give isl_basic_map *isl_basic_map_move_dims( |
4217 | __isl_take isl_basic_map *bmap, |
4218 | enum isl_dim_type dst_type, unsigned dst_pos, |
4219 | enum isl_dim_type src_type, unsigned src_pos, unsigned n) |
4220 | { |
4221 | isl_space *space; |
4222 | struct isl_dim_map *dim_map; |
4223 | struct isl_basic_map *res; |
4224 | enum isl_dim_type t; |
4225 | isl_size total; |
4226 | unsigned off; |
4227 | |
4228 | if (!bmap) |
4229 | return NULL((void*)0); |
4230 | if (n == 0) { |
4231 | bmap = isl_basic_map_reset(bmap, src_type); |
4232 | bmap = isl_basic_map_reset(bmap, dst_type); |
4233 | return bmap; |
4234 | } |
4235 | |
4236 | if (isl_basic_map_check_range(bmap, src_type, src_pos, n) < 0) |
4237 | return isl_basic_map_free(bmap); |
4238 | |
4239 | if (dst_type == src_type && dst_pos == src_pos) |
4240 | return bmap; |
4241 | |
4242 | isl_assert(bmap->ctx, dst_type != src_type, goto error)do { if (dst_type != src_type) break; do { isl_handle_error(bmap ->ctx, isl_error_unknown, "Assertion \"" "dst_type != src_type" "\" failed", "polly/lib/External/isl/isl_map.c", 4242); goto error; } while (0); } while (0); |
4243 | |
4244 | if (pos(bmap->dim, dst_type) + dst_pos == |
4245 | pos(bmap->dim, src_type) + src_pos + |
4246 | ((src_type < dst_type) ? n : 0)) { |
4247 | space = isl_basic_map_take_space(bmap); |
4248 | space = isl_space_move_dims(space, dst_type, dst_pos, |
4249 | src_type, src_pos, n); |
4250 | bmap = isl_basic_map_restore_space(bmap, space); |
4251 | bmap = isl_basic_map_finalize(bmap); |
4252 | |
4253 | return bmap; |
4254 | } |
4255 | |
4256 | total = isl_basic_map_dim(bmap, isl_dim_all); |
4257 | if (total < 0) |
4258 | return isl_basic_map_free(bmap); |
4259 | dim_map = isl_dim_map_alloc(bmap->ctx, total); |
4260 | |
4261 | off = 0; |
4262 | space = isl_basic_map_peek_space(bmap); |
4263 | for (t = isl_dim_param; t <= isl_dim_out; ++t) { |
4264 | isl_size size = isl_space_dim(space, t); |
4265 | if (size < 0) |
4266 | dim_map = isl_dim_map_free(dim_map); |
4267 | if (t == dst_type) { |
4268 | isl_dim_map_dim_range(dim_map, space, t, |
4269 | 0, dst_pos, off); |
4270 | off += dst_pos; |
4271 | isl_dim_map_dim_range(dim_map, space, src_type, |
4272 | src_pos, n, off); |
4273 | off += n; |
4274 | isl_dim_map_dim_range(dim_map, space, t, |
4275 | dst_pos, size - dst_pos, off); |
4276 | off += size - dst_pos; |
4277 | } else if (t == src_type) { |
4278 | isl_dim_map_dim_range(dim_map, space, t, |
4279 | 0, src_pos, off); |
4280 | off += src_pos; |
4281 | isl_dim_map_dim_range(dim_map, space, t, |
4282 | src_pos + n, size - src_pos - n, off); |
4283 | off += size - src_pos - n; |
4284 | } else { |
4285 | isl_dim_map_dim(dim_map, space, t, off); |
4286 | off += size; |
4287 | } |
4288 | } |
4289 | isl_dim_map_div(dim_map, bmap, off); |
4290 | |
4291 | res = isl_basic_map_alloc_space(isl_basic_map_get_space(bmap), |
4292 | bmap->n_div, bmap->n_eq, bmap->n_ineq); |
4293 | bmap = isl_basic_map_add_constraints_dim_map(res, bmap, dim_map); |
4294 | space = isl_basic_map_take_space(bmap); |
4295 | space = isl_space_move_dims(space, dst_type, dst_pos, |
4296 | src_type, src_pos, n); |
4297 | bmap = isl_basic_map_restore_space(bmap, space); |
4298 | if (!bmap) |
4299 | goto error; |
4300 | |
4301 | ISL_F_CLR(bmap, ISL_BASIC_MAP_SORTED)(((bmap)->flags) &= ~((1 << 5))); |
4302 | bmap = isl_basic_map_gauss(bmap, NULL((void*)0)); |
4303 | bmap = isl_basic_map_finalize(bmap); |
4304 | |
4305 | return bmap; |
4306 | error: |
4307 | isl_basic_map_free(bmap); |
4308 | return NULL((void*)0); |
4309 | } |
4310 | |
4311 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_move_dims(__isl_take isl_basic_setisl_basic_map *bset, |
4312 | enum isl_dim_type dst_type, unsigned dst_pos, |
4313 | enum isl_dim_type src_type, unsigned src_pos, unsigned n) |
4314 | { |
4315 | isl_basic_map *bmap = bset_to_bmap(bset); |
4316 | bmap = isl_basic_map_move_dims(bmap, dst_type, dst_pos, |
4317 | src_type, src_pos, n); |
4318 | return bset_from_bmap(bmap); |
4319 | } |
4320 | |
4321 | __isl_give isl_setisl_map *isl_set_move_dims(__isl_take isl_setisl_map *set, |
4322 | enum isl_dim_type dst_type, unsigned dst_pos, |
4323 | enum isl_dim_type src_type, unsigned src_pos, unsigned n) |
4324 | { |
4325 | if (!set) |
4326 | return NULL((void*)0); |
4327 | isl_assert(set->ctx, dst_type != isl_dim_in, goto error)do { if (dst_type != isl_dim_in) break; do { isl_handle_error (set->ctx, isl_error_unknown, "Assertion \"" "dst_type != isl_dim_in" "\" failed", "polly/lib/External/isl/isl_map.c", 4327); goto error; } while (0); } while (0); |
4328 | return set_from_map(isl_map_move_dims(set_to_map(set), |
4329 | dst_type, dst_pos, src_type, src_pos, n)); |
4330 | error: |
4331 | isl_set_free(set); |
4332 | return NULL((void*)0); |
4333 | } |
4334 | |
4335 | __isl_give isl_map *isl_map_move_dims(__isl_take isl_map *map, |
4336 | enum isl_dim_type dst_type, unsigned dst_pos, |
4337 | enum isl_dim_type src_type, unsigned src_pos, unsigned n) |
4338 | { |
4339 | int i; |
4340 | isl_space *space; |
4341 | |
4342 | if (n == 0) { |
4343 | map = isl_map_reset(map, src_type); |
4344 | map = isl_map_reset(map, dst_type); |
4345 | return map; |
4346 | } |
4347 | |
4348 | if (isl_map_check_range(map, src_type, src_pos, n)) |
4349 | return isl_map_free(map); |
4350 | |
4351 | if (dst_type == src_type && dst_pos == src_pos) |
4352 | return map; |
4353 | |
4354 | isl_assert(map->ctx, dst_type != src_type, goto error)do { if (dst_type != src_type) break; do { isl_handle_error(map ->ctx, isl_error_unknown, "Assertion \"" "dst_type != src_type" "\" failed", "polly/lib/External/isl/isl_map.c", 4354); goto error; } while (0); } while (0); |
4355 | |
4356 | map = isl_map_cow(map); |
4357 | if (!map) |
4358 | return NULL((void*)0); |
4359 | |
4360 | for (i = 0; i < map->n; ++i) { |
4361 | map->p[i] = isl_basic_map_move_dims(map->p[i], |
4362 | dst_type, dst_pos, |
4363 | src_type, src_pos, n); |
4364 | if (!map->p[i]) |
4365 | goto error; |
4366 | } |
4367 | |
4368 | space = isl_map_take_space(map); |
4369 | space = isl_space_move_dims(space, dst_type, dst_pos, |
4370 | src_type, src_pos, n); |
4371 | map = isl_map_restore_space(map, space); |
4372 | |
4373 | return map; |
4374 | error: |
4375 | isl_map_free(map); |
4376 | return NULL((void*)0); |
4377 | } |
4378 | |
4379 | /* Move the specified dimensions to the last columns right before |
4380 | * the divs. Don't change the dimension specification of bmap. |
4381 | * That's the responsibility of the caller. |
4382 | */ |
4383 | static __isl_give isl_basic_map *move_last(__isl_take isl_basic_map *bmap, |
4384 | enum isl_dim_type type, unsigned first, unsigned n) |
4385 | { |
4386 | isl_space *space; |
4387 | struct isl_dim_map *dim_map; |
4388 | struct isl_basic_map *res; |
4389 | enum isl_dim_type t; |
4390 | isl_size total; |
4391 | unsigned off; |
4392 | |
4393 | if (!bmap) |
4394 | return NULL((void*)0); |
4395 | if (isl_basic_map_offset(bmap, type) + first + n == |
4396 | isl_basic_map_offset(bmap, isl_dim_div)) |
4397 | return bmap; |
4398 | |
4399 | total = isl_basic_map_dim(bmap, isl_dim_all); |
4400 | if (total < 0) |
4401 | return isl_basic_map_free(bmap); |
4402 | dim_map = isl_dim_map_alloc(bmap->ctx, total); |
4403 | |
4404 | off = 0; |
4405 | space = isl_basic_map_peek_space(bmap); |
4406 | for (t = isl_dim_param; t <= isl_dim_out; ++t) { |
4407 | isl_size size = isl_space_dim(space, t); |
4408 | if (size < 0) |
4409 | dim_map = isl_dim_map_free(dim_map); |
4410 | if (t == type) { |
4411 | isl_dim_map_dim_range(dim_map, space, t, |
4412 | 0, first, off); |
4413 | off += first; |
4414 | isl_dim_map_dim_range(dim_map, space, t, |
4415 | first, n, total - bmap->n_div - n); |
4416 | isl_dim_map_dim_range(dim_map, space, t, |
4417 | first + n, size - (first + n), off); |
4418 | off += size - (first + n); |
4419 | } else { |
4420 | isl_dim_map_dim(dim_map, space, t, off); |
4421 | off += size; |
4422 | } |
4423 | } |
4424 | isl_dim_map_div(dim_map, bmap, off + n); |
4425 | |
4426 | res = isl_basic_map_alloc_space(isl_basic_map_get_space(bmap), |
4427 | bmap->n_div, bmap->n_eq, bmap->n_ineq); |
4428 | res = isl_basic_map_add_constraints_dim_map(res, bmap, dim_map); |
4429 | return res; |
4430 | } |
4431 | |
4432 | /* Insert "n" rows in the divs of "bmap". |
4433 | * |
4434 | * The number of columns is not changed, which means that the last |
4435 | * dimensions of "bmap" are being reintepreted as the new divs. |
4436 | * The space of "bmap" is not adjusted, however, which means |
4437 | * that "bmap" is left in an inconsistent state. Removing "n" dimensions |
4438 | * from the space of "bmap" is the responsibility of the caller. |
4439 | */ |
4440 | static __isl_give isl_basic_map *insert_div_rows(__isl_take isl_basic_map *bmap, |
4441 | int n) |
4442 | { |
4443 | int i; |
4444 | size_t row_size; |
4445 | isl_int **new_div; |
4446 | isl_int *old; |
4447 | |
4448 | bmap = isl_basic_map_cow(bmap); |
4449 | if (!bmap) |
4450 | return NULL((void*)0); |
4451 | |
4452 | row_size = isl_basic_map_offset(bmap, isl_dim_div) + bmap->extra; |
4453 | old = bmap->block2.data; |
4454 | bmap->block2 = isl_blk_extend(bmap->ctx, bmap->block2, |
4455 | (bmap->extra + n) * (1 + row_size)); |
4456 | if (!bmap->block2.data) |
4457 | return isl_basic_map_free(bmap); |
4458 | new_div = isl_alloc_array(bmap->ctx, isl_int *, bmap->extra + n)((isl_int * *)isl_malloc_or_die(bmap->ctx, (bmap->extra + n)*sizeof(isl_int *))); |
4459 | if (!new_div) |
4460 | return isl_basic_map_free(bmap); |
4461 | for (i = 0; i < n; ++i) { |
4462 | new_div[i] = bmap->block2.data + |
4463 | (bmap->extra + i) * (1 + row_size); |
4464 | isl_seq_clr(new_div[i], 1 + row_size); |
4465 | } |
4466 | for (i = 0; i < bmap->extra; ++i) |
4467 | new_div[n + i] = bmap->block2.data + (bmap->div[i] - old); |
4468 | free(bmap->div); |
4469 | bmap->div = new_div; |
4470 | bmap->n_div += n; |
4471 | bmap->extra += n; |
4472 | |
4473 | return bmap; |
4474 | } |
4475 | |
4476 | /* Drop constraints from "bmap" that only involve the variables |
4477 | * of "type" in the range [first, first + n] that are not related |
4478 | * to any of the variables outside that interval. |
4479 | * These constraints cannot influence the values for the variables |
4480 | * outside the interval, except in case they cause "bmap" to be empty. |
4481 | * Only drop the constraints if "bmap" is known to be non-empty. |
4482 | */ |
4483 | static __isl_give isl_basic_map *drop_irrelevant_constraints( |
4484 | __isl_take isl_basic_map *bmap, enum isl_dim_type type, |
4485 | unsigned first, unsigned n) |
4486 | { |
4487 | int i; |
4488 | int *groups; |
4489 | isl_size dim, n_div; |
4490 | isl_bool non_empty; |
4491 | |
4492 | non_empty = isl_basic_map_plain_is_non_empty(bmap); |
4493 | if (non_empty < 0) |
4494 | return isl_basic_map_free(bmap); |
4495 | if (!non_empty) |
4496 | return bmap; |
4497 | |
4498 | dim = isl_basic_map_dim(bmap, isl_dim_all); |
4499 | n_div = isl_basic_map_dim(bmap, isl_dim_div); |
4500 | if (dim < 0 || n_div < 0) |
4501 | return isl_basic_map_free(bmap); |
4502 | groups = isl_calloc_array(isl_basic_map_get_ctx(bmap), int, dim)((int *)isl_calloc_or_die(isl_basic_map_get_ctx(bmap), dim, sizeof (int))); |
4503 | if (!groups) |
4504 | return isl_basic_map_free(bmap); |
4505 | first += isl_basic_map_offset(bmap, type) - 1; |
4506 | for (i = 0; i < first; ++i) |
4507 | groups[i] = -1; |
4508 | for (i = first + n; i < dim - n_div; ++i) |
4509 | groups[i] = -1; |
4510 | |
4511 | bmap = isl_basic_map_drop_unrelated_constraints(bmap, groups); |
4512 | |
4513 | return bmap; |
4514 | } |
4515 | |
4516 | /* Turn the n dimensions of type type, starting at first |
4517 | * into existentially quantified variables. |
4518 | * |
4519 | * If a subset of the projected out variables are unrelated |
4520 | * to any of the variables that remain, then the constraints |
4521 | * involving this subset are simply dropped first. |
4522 | */ |
4523 | __isl_give isl_basic_map *isl_basic_map_project_out( |
4524 | __isl_take isl_basic_map *bmap, |
4525 | enum isl_dim_type type, unsigned first, unsigned n) |
4526 | { |
4527 | isl_bool empty; |
4528 | isl_space *space; |
4529 | |
4530 | if (n == 0) |
4531 | return basic_map_space_reset(bmap, type); |
4532 | if (type == isl_dim_div) |
4533 | isl_die(isl_basic_map_get_ctx(bmap), isl_error_invalid,do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "cannot project out existentially quantified variables", "polly/lib/External/isl/isl_map.c" , 4535); return isl_basic_map_free(bmap); } while (0) |
4534 | "cannot project out existentially quantified variables",do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "cannot project out existentially quantified variables", "polly/lib/External/isl/isl_map.c" , 4535); return isl_basic_map_free(bmap); } while (0) |
4535 | return isl_basic_map_free(bmap))do { isl_handle_error(isl_basic_map_get_ctx(bmap), isl_error_invalid , "cannot project out existentially quantified variables", "polly/lib/External/isl/isl_map.c" , 4535); return isl_basic_map_free(bmap); } while (0); |
4536 | |
4537 | empty = isl_basic_map_plain_is_empty(bmap); |
4538 | if (empty < 0) |
4539 | return isl_basic_map_free(bmap); |
4540 | if (empty) |
4541 | bmap = isl_basic_map_set_to_empty(bmap); |
4542 | |
4543 | bmap = drop_irrelevant_constraints(bmap, type, first, n); |
4544 | if (!bmap) |
4545 | return NULL((void*)0); |
4546 | |
4547 | if (ISL_F_ISSET(bmap, ISL_BASIC_MAP_RATIONAL)(!!(((bmap)->flags) & ((1 << 4))))) |
4548 | return isl_basic_map_remove_dims(bmap, type, first, n); |
4549 | |
4550 | if (isl_basic_map_check_range(bmap, type, first, n) < 0) |
4551 | return isl_basic_map_free(bmap); |
4552 | |
4553 | bmap = move_last(bmap, type, first, n); |
4554 | bmap = isl_basic_map_cow(bmap); |
4555 | bmap = insert_div_rows(bmap, n); |
4556 | |
4557 | space = isl_basic_map_take_space(bmap); |
4558 | space = isl_space_drop_dims(space, type, first, n); |
4559 | bmap = isl_basic_map_restore_space(bmap, space); |
4560 | bmap = isl_basic_map_simplify(bmap); |
4561 | bmap = isl_basic_map_drop_redundant_divs(bmap); |
4562 | return isl_basic_map_finalize(bmap); |
4563 | } |
4564 | |
4565 | /* Turn the n dimensions of type type, starting at first |
4566 | * into existentially quantified variables. |
4567 | */ |
4568 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_project_out( |
4569 | __isl_take isl_basic_setisl_basic_map *bset, enum isl_dim_type type, |
4570 | unsigned first, unsigned n) |
4571 | { |
4572 | return bset_from_bmap(isl_basic_map_project_out(bset_to_bmap(bset), |
4573 | type, first, n)); |
4574 | } |
4575 | |
4576 | /* Turn the n dimensions of type type, starting at first |
4577 | * into existentially quantified variables. |
4578 | */ |
4579 | __isl_give isl_map *isl_map_project_out(__isl_take isl_map *map, |
4580 | enum isl_dim_type type, unsigned first, unsigned n) |
4581 | { |
4582 | int i; |
4583 | isl_space *space; |
4584 | |
4585 | if (n == 0) |
4586 | return map_space_reset(map, type); |
4587 | |
4588 | if (isl_map_check_range(map, type, first, n) < 0) |
4589 | return isl_map_free(map); |
4590 | |
4591 | map = isl_map_cow(map); |
4592 | if (!map) |
4593 | return NULL((void*)0); |
4594 | |
4595 | for (i = 0; i < map->n; ++i) { |
4596 | map->p[i] = isl_basic_map_project_out(map->p[i], type, first, n); |
4597 | if (!map->p[i]) |
4598 | goto error; |
4599 | } |
4600 | |
4601 | if (map->n > 1) |
4602 | ISL_F_CLR(map, ISL_MAP_DISJOINT)(((map)->flags) &= ~((1 << 0))); |
4603 | map = isl_map_unmark_normalized(map); |
4604 | |
4605 | space = isl_map_take_space(map); |
4606 | space = isl_space_drop_dims(space, type, first, n); |
4607 | map = isl_map_restore_space(map, space); |
4608 | |
4609 | return map; |
4610 | error: |
4611 | isl_map_free(map); |
4612 | return NULL((void*)0); |
4613 | } |
4614 | |
4615 | #undef TYPEisl_map |
4616 | #define TYPEisl_map isl_map |
4617 | #include "isl_project_out_all_params_templ.c" |
4618 | #include "isl_project_out_param_templ.c" |
4619 | |
4620 | /* Turn all the dimensions of type "type", except the "n" starting at "first" |
4621 | * into existentially quantified variables. |
4622 | */ |
4623 | __isl_give isl_map *isl_map_project_onto(__isl_take isl_map *map, |
4624 | enum isl_dim_type type, unsigned first, unsigned n) |
4625 | { |
4626 | isl_size dim; |
4627 | |
4628 | dim = isl_map_dim(map, type); |
4629 | if (isl_map_check_range(map, type, first, n) < 0 || dim < 0) |
4630 | return isl_map_free(map); |
4631 | map = isl_map_project_out(map, type, first + n, dim - (first + n)); |
4632 | map = isl_map_project_out(map, type, 0, first); |
4633 | return map; |
4634 | } |
4635 | |
4636 | /* Turn the n dimensions of type type, starting at first |
4637 | * into existentially quantified variables. |
4638 | */ |
4639 | __isl_give isl_setisl_map *isl_set_project_out(__isl_take isl_setisl_map *set, |
4640 | enum isl_dim_type type, unsigned first, unsigned n) |
4641 | { |
4642 | return set_from_map(isl_map_project_out(set_to_map(set), |
4643 | type, first, n)); |
4644 | } |
4645 | |
4646 | /* If "set" involves a parameter with identifier "id", |
4647 | * then turn it into an existentially quantified variable. |
4648 | */ |
4649 | __isl_give isl_setisl_map *isl_set_project_out_param_id(__isl_take isl_setisl_map *set, |
4650 | __isl_take isl_id *id) |
4651 | { |
4652 | return set_from_map(isl_map_project_out_param_id(set_to_map(set), id)); |
4653 | } |
4654 | |
4655 | /* If "set" involves any of the parameters with identifiers in "list", |
4656 | * then turn them into existentially quantified variables. |
4657 | */ |
4658 | __isl_give isl_setisl_map *isl_set_project_out_param_id_list(__isl_take isl_setisl_map *set, |
4659 | __isl_take isl_id_list *list) |
4660 | { |
4661 | isl_map *map; |
4662 | |
4663 | map = set_to_map(set); |
4664 | map = isl_map_project_out_param_id_list(map, list); |
4665 | return set_from_map(map); |
4666 | } |
4667 | |
4668 | /* Project out all parameters from "set" by existentially quantifying |
4669 | * over them. |
4670 | */ |
4671 | __isl_give isl_setisl_map *isl_set_project_out_all_params(__isl_take isl_setisl_map *set) |
4672 | { |
4673 | return set_from_map(isl_map_project_out_all_params(set_to_map(set))); |
4674 | } |
4675 | |
4676 | /* Return a map that projects the elements in "set" onto their |
4677 | * "n" set dimensions starting at "first". |
4678 | * "type" should be equal to isl_dim_set. |
4679 | */ |
4680 | __isl_give isl_map *isl_set_project_onto_map(__isl_take isl_setisl_map *set, |
4681 | enum isl_dim_type type, unsigned first, unsigned n) |
4682 | { |
4683 | int i; |
4684 | isl_map *map; |
4685 | |
4686 | if (type != isl_dim_set) |
4687 | isl_die(isl_set_get_ctx(set), isl_error_invalid,do { isl_handle_error(isl_set_get_ctx(set), isl_error_invalid , "only set dimensions can be projected out", "polly/lib/External/isl/isl_map.c" , 4688); goto error; } while (0) |
4688 | "only set dimensions can be projected out", goto error)do { isl_handle_error(isl_set_get_ctx(set), isl_error_invalid , "only set dimensions can be projected out", "polly/lib/External/isl/isl_map.c" , 4688); goto error; } while (0); |
4689 | if (isl_set_check_range(set, type, first, n) < 0) |
4690 | return isl_set_free(set); |
4691 | |
4692 | map = isl_map_from_domain(set); |
4693 | map = isl_map_add_dims(map, isl_dim_out, n); |
4694 | for (i = 0; i < n; ++i) |
4695 | map = isl_map_equate(map, isl_dim_in, first + i, |
4696 | isl_dim_out, i); |
4697 | return map; |
4698 | error: |
4699 | isl_set_free(set); |
4700 | return NULL((void*)0); |
4701 | } |
4702 | |
4703 | static __isl_give isl_basic_map *add_divs(__isl_take isl_basic_map *bmap, |
4704 | unsigned n) |
4705 | { |
4706 | int i, j; |
4707 | isl_size total; |
4708 | |
4709 | total = isl_basic_map_dim(bmap, isl_dim_all); |
4710 | if (total < 0) |
4711 | return isl_basic_map_free(bmap); |
4712 | for (i = 0; i < n; ++i) { |
4713 | j = isl_basic_map_alloc_div(bmap); |
4714 | if (j < 0) |
4715 | goto error; |
4716 | isl_seq_clr(bmap->div[j], 1 + 1 + total); |
4717 | } |
4718 | return bmap; |
4719 | error: |
4720 | isl_basic_map_free(bmap); |
4721 | return NULL((void*)0); |
4722 | } |
4723 | |
4724 | /* Does "bmap2" apply to the range of "bmap1" (ignoring parameters)? |
4725 | */ |
4726 | isl_bool isl_basic_map_applies_range(__isl_keep isl_basic_map *bmap1, |
4727 | __isl_keep isl_basic_map *bmap2) |
4728 | { |
4729 | isl_space *space1, *space2; |
4730 | |
4731 | space1 = isl_basic_map_peek_space(bmap1); |
4732 | space2 = isl_basic_map_peek_space(bmap2); |
4733 | return isl_space_tuple_is_equal(space1, isl_dim_out, |
4734 | space2, isl_dim_in); |
4735 | } |
4736 | |
4737 | /* Check that "bmap2" applies to the range of "bmap1" (ignoring parameters). |
4738 | */ |
4739 | static isl_stat isl_basic_map_check_applies_range( |
4740 | __isl_keep isl_basic_map *bmap1, __isl_keep isl_basic_map *bmap2) |
4741 | { |
4742 | isl_bool equal; |
4743 | |
4744 | equal = isl_basic_map_applies_range(bmap1, bmap2); |
4745 | if (equal < 0) |
4746 | return isl_stat_error; |
4747 | if (!equal) |
4748 | isl_die(isl_basic_map_get_ctx(bmap1), isl_error_invalid,do { isl_handle_error(isl_basic_map_get_ctx(bmap1), isl_error_invalid , "spaces don't match", "polly/lib/External/isl/isl_map.c", 4749 ); return isl_stat_error; } while (0) |
4749 | "spaces don't match", return isl_stat_error)do { isl_handle_error(isl_basic_map_get_ctx(bmap1), isl_error_invalid , "spaces don't match", "polly/lib/External/isl/isl_map.c", 4749 ); return isl_stat_error; } while (0); |
4750 | return isl_stat_ok; |
4751 | } |
4752 | |
4753 | __isl_give isl_basic_map *isl_basic_map_apply_range( |
4754 | __isl_take isl_basic_map *bmap1, __isl_take isl_basic_map *bmap2) |
4755 | { |
4756 | isl_space *space_result = NULL((void*)0); |
4757 | struct isl_basic_map *bmap; |
4758 | isl_size n_in, n_out, n, nparam; |
4759 | unsigned total, pos; |
4760 | struct isl_dim_map *dim_map1, *dim_map2; |
4761 | |
4762 | if (isl_basic_map_check_equal_params(bmap1, bmap2) < 0) |
4763 | goto error; |
4764 | if (isl_basic_map_check_applies_range(bmap1, bmap2) < 0) |
4765 | goto error; |
4766 | |
4767 | n_in = isl_basic_map_dim(bmap1, isl_dim_in); |
4768 | n_out = isl_basic_map_dim(bmap2, isl_dim_out); |
4769 | n = isl_basic_map_dim(bmap1, isl_dim_out); |
4770 | nparam = isl_basic_map_dim(bmap1, isl_dim_param); |
4771 | if (n_in < 0 || n_out < 0 || n < 0 || nparam < 0) |
4772 | goto error; |
4773 | |
4774 | space_result = isl_space_join(isl_basic_map_get_space(bmap1), |
4775 | isl_basic_map_get_space(bmap2)); |
4776 | |
4777 | total = nparam + n_in + n_out + bmap1->n_div + bmap2->n_div + n; |
4778 | dim_map1 = isl_dim_map_alloc(bmap1->ctx, total); |
4779 | dim_map2 = isl_dim_map_alloc(bmap1->ctx, total); |
4780 | isl_dim_map_dim(dim_map1, bmap1->dim, isl_dim_param, pos = 0); |
4781 | isl_dim_map_dim(dim_map2, bmap2->dim, isl_dim_param, pos = 0); |
4782 | isl_dim_map_dim(dim_map1, bmap1->dim, isl_dim_in, pos += nparam); |
4783 | isl_dim_map_dim(dim_map2, bmap2->dim, isl_dim_out, pos += n_in); |
4784 | isl_dim_map_div(dim_map1, bmap1, pos += n_out); |
4785 | isl_dim_map_div(dim_map2, bmap2, pos += bmap1->n_div); |
4786 | isl_dim_map_dim(dim_map1, bmap1->dim, isl_dim_out, pos += bmap2->n_div); |
4787 | isl_dim_map_dim(dim_map2, bmap2->dim, isl_dim_in, pos); |
4788 | |
4789 | bmap = isl_basic_map_alloc_space(space_result, |
4790 | bmap1->n_div + bmap2->n_div + n, |
4791 | bmap1->n_eq + bmap2->n_eq, |
4792 | bmap1->n_ineq + bmap2->n_ineq); |
4793 | bmap = isl_basic_map_add_constraints_dim_map(bmap, bmap1, dim_map1); |
4794 | bmap = isl_basic_map_add_constraints_dim_map(bmap, bmap2, dim_map2); |
4795 | bmap = add_divs(bmap, n); |
4796 | bmap = isl_basic_map_simplify(bmap); |
4797 | bmap = isl_basic_map_drop_redundant_divs(bmap); |
4798 | return isl_basic_map_finalize(bmap); |
4799 | error: |
4800 | isl_basic_map_free(bmap1); |
4801 | isl_basic_map_free(bmap2); |
4802 | return NULL((void*)0); |
4803 | } |
4804 | |
4805 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_apply(__isl_take isl_basic_setisl_basic_map *bset, |
4806 | __isl_take isl_basic_map *bmap) |
4807 | { |
4808 | if (isl_basic_map_check_compatible_domain(bmap, bset) < 0) |
4809 | goto error; |
4810 | |
4811 | return bset_from_bmap(isl_basic_map_apply_range(bset_to_bmap(bset), |
4812 | bmap)); |
4813 | error: |
4814 | isl_basic_set_free(bset); |
4815 | isl_basic_map_free(bmap); |
4816 | return NULL((void*)0); |
4817 | } |
4818 | |
4819 | __isl_give isl_basic_map *isl_basic_map_apply_domain( |
4820 | __isl_take isl_basic_map *bmap1, __isl_take isl_basic_map *bmap2) |
4821 | { |
4822 | if (isl_basic_map_check_equal_params(bmap1, bmap2) < 0) |
4823 | goto error; |
4824 | if (!isl_space_tuple_is_equal(bmap1->dim, isl_dim_in, |
4825 | bmap2->dim, isl_dim_in)) |
4826 | isl_die(isl_basic_map_get_ctx(bmap1), isl_error_invalid,do { isl_handle_error(isl_basic_map_get_ctx(bmap1), isl_error_invalid , "spaces don't match", "polly/lib/External/isl/isl_map.c", 4827 ); goto error; } while (0) |
4827 | "spaces don't match", goto error)do { isl_handle_error(isl_basic_map_get_ctx(bmap1), isl_error_invalid , "spaces don't match", "polly/lib/External/isl/isl_map.c", 4827 ); goto error; } while (0); |
4828 | |
4829 | bmap1 = isl_basic_map_reverse(bmap1); |
4830 | bmap1 = isl_basic_map_apply_range(bmap1, bmap2); |
4831 | return isl_basic_map_reverse(bmap1); |
4832 | error: |
4833 | isl_basic_map_free(bmap1); |
4834 | isl_basic_map_free(bmap2); |
4835 | return NULL((void*)0); |
4836 | } |
4837 | |
4838 | /* Given two basic maps A -> f(A) and B -> g(B), construct a basic map |
4839 | * A \cap B -> f(A) + f(B) |
4840 | */ |
4841 | __isl_give isl_basic_map *isl_basic_map_sum(__isl_take isl_basic_map *bmap1, |
4842 | __isl_take isl_basic_map *bmap2) |
4843 | { |
4844 | isl_size n_in, n_out, nparam; |
4845 | unsigned total, pos; |
4846 | struct isl_basic_map *bmap = NULL((void*)0); |
4847 | struct isl_dim_map *dim_map1, *dim_map2; |
4848 | int i; |
4849 | |
4850 | if (isl_basic_map_check_equal_space(bmap1, bmap2) < 0) |
4851 | goto error; |
4852 | |
4853 | nparam = isl_basic_map_dim(bmap1, isl_dim_param); |
4854 | n_in = isl_basic_map_dim(bmap1, isl_dim_in); |
4855 | n_out = isl_basic_map_dim(bmap1, isl_dim_out); |
4856 | if (nparam < 0 || n_in < 0 || n_out < 0) |
4857 | goto error; |
4858 | |
4859 | total = nparam + n_in + n_out + bmap1->n_div + bmap2->n_div + 2 * n_out; |
4860 | dim_map1 = isl_dim_map_alloc(bmap1->ctx, total); |
4861 | dim_map2 = isl_dim_map_alloc(bmap2->ctx, total); |
4862 | isl_dim_map_dim(dim_map1, bmap1->dim, isl_dim_param, pos = 0); |
4863 | isl_dim_map_dim(dim_map2, bmap2->dim, isl_dim_param, pos); |
4864 | isl_dim_map_dim(dim_map1, bmap1->dim, isl_dim_in, pos += nparam); |
4865 | isl_dim_map_dim(dim_map2, bmap2->dim, isl_dim_in, pos); |
4866 | isl_dim_map_div(dim_map1, bmap1, pos += n_in + n_out); |
4867 | isl_dim_map_div(dim_map2, bmap2, pos += bmap1->n_div); |
4868 | isl_dim_map_dim(dim_map1, bmap1->dim, isl_dim_out, pos += bmap2->n_div); |
4869 | isl_dim_map_dim(dim_map2, bmap2->dim, isl_dim_out, pos += n_out); |
4870 | |
4871 | bmap = isl_basic_map_alloc_space(isl_space_copy(bmap1->dim), |
4872 | bmap1->n_div + bmap2->n_div + 2 * n_out, |
4873 | bmap1->n_eq + bmap2->n_eq + n_out, |
4874 | bmap1->n_ineq + bmap2->n_ineq); |
4875 | for (i = 0; i < n_out; ++i) { |
4876 | int j = isl_basic_map_alloc_equality(bmap); |
4877 | if (j < 0) |
4878 | goto error; |
4879 | isl_seq_clr(bmap->eq[j], 1+total); |
4880 | isl_int_set_si(bmap->eq[j][1+nparam+n_in+i], -1)isl_sioimath_set_si((bmap->eq[j][1+nparam+n_in+i]), -1); |
4881 | isl_int_set_si(bmap->eq[j][1+pos+i], 1)isl_sioimath_set_si((bmap->eq[j][1+pos+i]), 1); |
4882 | isl_int_set_si(bmap->eq[j][1+pos-n_out+i], 1)isl_sioimath_set_si((bmap->eq[j][1+pos-n_out+i]), 1); |
4883 | } |
4884 | bmap = isl_basic_map_add_constraints_dim_map(bmap, bmap1, dim_map1); |
4885 | bmap = isl_basic_map_add_constraints_dim_map(bmap, bmap2, dim_map2); |
4886 | bmap = add_divs(bmap, 2 * n_out); |
4887 | |
4888 | bmap = isl_basic_map_simplify(bmap); |
4889 | return isl_basic_map_finalize(bmap); |
4890 | error: |
4891 | isl_basic_map_free(bmap); |
4892 | isl_basic_map_free(bmap1); |
4893 | isl_basic_map_free(bmap2); |
4894 | return NULL((void*)0); |
4895 | } |
4896 | |
4897 | /* Given two maps A -> f(A) and B -> g(B), construct a map |
4898 | * A \cap B -> f(A) + f(B) |
4899 | */ |
4900 | __isl_give isl_map *isl_map_sum(__isl_take isl_map *map1, |
4901 | __isl_take isl_map *map2) |
4902 | { |
4903 | struct isl_map *result; |
4904 | int i, j; |
4905 | |
4906 | if (isl_map_check_equal_space(map1, map2) < 0) |
4907 | goto error; |
4908 | |
4909 | result = isl_map_alloc_space(isl_space_copy(map1->dim), |
4910 | map1->n * map2->n, 0); |
4911 | if (!result) |
4912 | goto error; |
4913 | for (i = 0; i < map1->n; ++i) |
4914 | for (j = 0; j < map2->n; ++j) { |
4915 | struct isl_basic_map *part; |
4916 | part = isl_basic_map_sum( |
4917 | isl_basic_map_copy(map1->p[i]), |
4918 | isl_basic_map_copy(map2->p[j])); |
4919 | if (isl_basic_map_is_empty(part)) |
4920 | isl_basic_map_free(part); |
4921 | else |
4922 | result = isl_map_add_basic_map(result, part); |
4923 | if (!result) |
4924 | goto error; |
4925 | } |
4926 | isl_map_free(map1); |
4927 | isl_map_free(map2); |
4928 | return result; |
4929 | error: |
4930 | isl_map_free(map1); |
4931 | isl_map_free(map2); |
4932 | return NULL((void*)0); |
4933 | } |
4934 | |
4935 | __isl_give isl_setisl_map *isl_set_sum(__isl_take isl_setisl_map *set1, |
4936 | __isl_take isl_setisl_map *set2) |
4937 | { |
4938 | return set_from_map(isl_map_sum(set_to_map(set1), set_to_map(set2))); |
4939 | } |
4940 | |
4941 | /* Given a basic map A -> f(A), construct A -> -f(A). |
4942 | */ |
4943 | __isl_give isl_basic_map *isl_basic_map_neg(__isl_take isl_basic_map *bmap) |
4944 | { |
4945 | int i, j; |
4946 | unsigned off; |
4947 | isl_size n; |
4948 | |
4949 | bmap = isl_basic_map_cow(bmap); |
4950 | n = isl_basic_map_dim(bmap, isl_dim_out); |
4951 | if (n < 0) |
4952 | return isl_basic_map_free(bmap); |
4953 | |
4954 | off = isl_basic_map_offset(bmap, isl_dim_out); |
4955 | for (i = 0; i < bmap->n_eq; ++i) |
4956 | for (j = 0; j < n; ++j) |
4957 | isl_int_neg(bmap->eq[i][off+j], bmap->eq[i][off+j])isl_sioimath_neg((bmap->eq[i][off+j]), *(bmap->eq[i][off +j])); |
4958 | for (i = 0; i < bmap->n_ineq; ++i) |
4959 | for (j = 0; j < n; ++j) |
4960 | isl_int_neg(bmap->ineq[i][off+j], bmap->ineq[i][off+j])isl_sioimath_neg((bmap->ineq[i][off+j]), *(bmap->ineq[i ][off+j])); |
4961 | for (i = 0; i < bmap->n_div; ++i) |
4962 | for (j = 0; j < n; ++j) |
4963 | isl_int_neg(bmap->div[i][1+off+j], bmap->div[i][1+off+j])isl_sioimath_neg((bmap->div[i][1+off+j]), *(bmap->div[i ][1+off+j])); |
4964 | bmap = isl_basic_map_gauss(bmap, NULL((void*)0)); |
4965 | return isl_basic_map_finalize(bmap); |
4966 | } |
4967 | |
4968 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_neg(__isl_take isl_basic_setisl_basic_map *bset) |
4969 | { |
4970 | return isl_basic_map_neg(bset); |
4971 | } |
4972 | |
4973 | /* Given a map A -> f(A), construct A -> -f(A). |
4974 | */ |
4975 | __isl_give isl_map *isl_map_neg(__isl_take isl_map *map) |
4976 | { |
4977 | int i; |
4978 | |
4979 | map = isl_map_cow(map); |
4980 | if (!map) |
4981 | return NULL((void*)0); |
4982 | |
4983 | for (i = 0; i < map->n; ++i) { |
4984 | map->p[i] = isl_basic_map_neg(map->p[i]); |
4985 | if (!map->p[i]) |
4986 | goto error; |
4987 | } |
4988 | |
4989 | return map; |
4990 | error: |
4991 | isl_map_free(map); |
4992 | return NULL((void*)0); |
4993 | } |
4994 | |
4995 | __isl_give isl_setisl_map *isl_set_neg(__isl_take isl_setisl_map *set) |
4996 | { |
4997 | return set_from_map(isl_map_neg(set_to_map(set))); |
4998 | } |
4999 | |
5000 | /* Given a basic map A -> f(A) and an integer d, construct a basic map |
5001 | * A -> floor(f(A)/d). |
5002 | */ |
5003 | __isl_give isl_basic_map *isl_basic_map_floordiv(__isl_take isl_basic_map *bmap, |
5004 | isl_int d) |
5005 | { |
5006 | isl_size n_in, n_out, nparam; |
5007 | unsigned total, pos; |
5008 | struct isl_basic_map *result = NULL((void*)0); |
5009 | struct isl_dim_map *dim_map; |
5010 | int i; |
5011 | |
5012 | nparam = isl_basic_map_dim(bmap, isl_dim_param); |
5013 | n_in = isl_basic_map_dim(bmap, isl_dim_in); |
5014 | n_out = isl_basic_map_dim(bmap, isl_dim_out); |
5015 | if (nparam < 0 || n_in < 0 || n_out < 0) |
5016 | return isl_basic_map_free(bmap); |
5017 | |
5018 | total = nparam + n_in + n_out + bmap->n_div + n_out; |
5019 | dim_map = isl_dim_map_alloc(bmap->ctx, total); |
5020 | isl_dim_map_dim(dim_map, bmap->dim, isl_dim_param, pos = 0); |
5021 | isl_dim_map_dim(dim_map, bmap->dim, isl_dim_in, pos += nparam); |
5022 | isl_dim_map_div(dim_map, bmap, pos += n_in + n_out); |
5023 | isl_dim_map_dim(dim_map, bmap->dim, isl_dim_out, pos += bmap->n_div); |
5024 | |
5025 | result = isl_basic_map_alloc_space(isl_space_copy(bmap->dim), |
5026 | bmap->n_div + n_out, |
5027 | bmap->n_eq, bmap->n_ineq + 2 * n_out); |
5028 | result = isl_basic_map_add_constraints_dim_map(result, bmap, dim_map); |
5029 | result = add_divs(result, n_out); |
5030 | for (i = 0; i < n_out; ++i) { |
5031 | int j; |
5032 | j = isl_basic_map_alloc_inequality(result); |
5033 | if (j < 0) |
5034 | goto error; |
5035 | isl_seq_clr(result->ineq[j], 1+total); |
5036 | isl_int_neg(result->ineq[j][1+nparam+n_in+i], d)isl_sioimath_neg((result->ineq[j][1+nparam+n_in+i]), *(d)); |
5037 | isl_int_set_si(result->ineq[j][1+pos+i], 1)isl_sioimath_set_si((result->ineq[j][1+pos+i]), 1); |
5038 | j = isl_basic_map_alloc_inequality(result); |
5039 | if (j < 0) |
5040 | goto error; |
5041 | isl_seq_clr(result->ineq[j], 1+total); |
5042 | isl_int_set(result->ineq[j][1+nparam+n_in+i], d)isl_sioimath_set((result->ineq[j][1+nparam+n_in+i]), *(d)); |
5043 | isl_int_set_si(result->ineq[j][1+pos+i], -1)isl_sioimath_set_si((result->ineq[j][1+pos+i]), -1); |
5044 | isl_int_sub_ui(result->ineq[j][0], d, 1)isl_sioimath_sub_ui((result->ineq[j][0]), *(d), 1); |
5045 | } |
5046 | |
5047 | result = isl_basic_map_simplify(result); |
5048 | return isl_basic_map_finalize(result); |
5049 | error: |
5050 | isl_basic_map_free(result); |
5051 | return NULL((void*)0); |
5052 | } |
5053 | |
5054 | /* Given a map A -> f(A) and an integer d, construct a map |
5055 | * A -> floor(f(A)/d). |
5056 | */ |
5057 | __isl_give isl_map *isl_map_floordiv(__isl_take isl_map *map, isl_int d) |
5058 | { |
5059 | int i; |
5060 | |
5061 | map = isl_map_cow(map); |
5062 | if (!map) |
5063 | return NULL((void*)0); |
5064 | |
5065 | ISL_F_CLR(map, ISL_MAP_DISJOINT)(((map)->flags) &= ~((1 << 0))); |
5066 | for (i = 0; i < map->n; ++i) { |
5067 | map->p[i] = isl_basic_map_floordiv(map->p[i], d); |
5068 | if (!map->p[i]) |
5069 | goto error; |
5070 | } |
5071 | map = isl_map_unmark_normalized(map); |
5072 | |
5073 | return map; |
5074 | error: |
5075 | isl_map_free(map); |
5076 | return NULL((void*)0); |
5077 | } |
5078 | |
5079 | /* Given a map A -> f(A) and an integer d, construct a map |
5080 | * A -> floor(f(A)/d). |
5081 | */ |
5082 | __isl_give isl_map *isl_map_floordiv_val(__isl_take isl_map *map, |
5083 | __isl_take isl_val *d) |
5084 | { |
5085 | if (!map || !d) |
5086 | goto error; |
5087 | if (!isl_val_is_int(d)) |
5088 | isl_die(isl_val_get_ctx(d), isl_error_invalid,do { isl_handle_error(isl_val_get_ctx(d), isl_error_invalid, "expecting integer denominator" , "polly/lib/External/isl/isl_map.c", 5089); goto error; } while (0) |
5089 | "expecting integer denominator", goto error)do { isl_handle_error(isl_val_get_ctx(d), isl_error_invalid, "expecting integer denominator" , "polly/lib/External/isl/isl_map.c", 5089); goto error; } while (0); |
5090 | map = isl_map_floordiv(map, d->n); |
5091 | isl_val_free(d); |
5092 | return map; |
5093 | error: |
5094 | isl_map_free(map); |
5095 | isl_val_free(d); |
5096 | return NULL((void*)0); |
5097 | } |
5098 | |
5099 | static __isl_give isl_basic_map *var_equal(__isl_take isl_basic_map *bmap, |
5100 | unsigned pos) |
5101 | { |
5102 | int i; |
5103 | isl_size nparam; |
5104 | isl_size n_in; |
5105 | isl_size total; |
5106 | |
5107 | total = isl_basic_map_dim(bmap, isl_dim_all); |
5108 | nparam = isl_basic_map_dim(bmap, isl_dim_param); |
5109 | n_in = isl_basic_map_dim(bmap, isl_dim_in); |
5110 | if (total < 0 || nparam < 0 || n_in < 0) |
5111 | return isl_basic_map_free(bmap); |
5112 | i = isl_basic_map_alloc_equality(bmap); |
5113 | if (i < 0) |
5114 | goto error; |
5115 | isl_seq_clr(bmap->eq[i], 1 + total); |
5116 | isl_int_set_si(bmap->eq[i][1+nparam+pos], -1)isl_sioimath_set_si((bmap->eq[i][1+nparam+pos]), -1); |
5117 | isl_int_set_si(bmap->eq[i][1+nparam+n_in+pos], 1)isl_sioimath_set_si((bmap->eq[i][1+nparam+n_in+pos]), 1); |
5118 | return isl_basic_map_finalize(bmap); |
5119 | error: |
5120 | isl_basic_map_free(bmap); |
5121 | return NULL((void*)0); |
5122 | } |
5123 | |
5124 | /* Add a constraint to "bmap" expressing i_pos < o_pos |
5125 | */ |
5126 | static __isl_give isl_basic_map *var_less(__isl_take isl_basic_map *bmap, |
5127 | unsigned pos) |
5128 | { |
5129 | int i; |
5130 | isl_size nparam; |
5131 | isl_size n_in; |
5132 | isl_size total; |
5133 | |
5134 | total = isl_basic_map_dim(bmap, isl_dim_all); |
5135 | nparam = isl_basic_map_dim(bmap, isl_dim_param); |
5136 | n_in = isl_basic_map_dim(bmap, isl_dim_in); |
5137 | if (total < 0 || nparam < 0 || n_in < 0) |
5138 | return isl_basic_map_free(bmap); |
5139 | i = isl_basic_map_alloc_inequality(bmap); |
5140 | if (i < 0) |
5141 | goto error; |
5142 | isl_seq_clr(bmap->ineq[i], 1 + total); |
5143 | isl_int_set_si(bmap->ineq[i][0], -1)isl_sioimath_set_si((bmap->ineq[i][0]), -1); |
5144 | isl_int_set_si(bmap->ineq[i][1+nparam+pos], -1)isl_sioimath_set_si((bmap->ineq[i][1+nparam+pos]), -1); |
5145 | isl_int_set_si(bmap->ineq[i][1+nparam+n_in+pos], 1)isl_sioimath_set_si((bmap->ineq[i][1+nparam+n_in+pos]), 1); |
5146 | return isl_basic_map_finalize(bmap); |
5147 | error: |
5148 | isl_basic_map_free(bmap); |
5149 | return NULL((void*)0); |
5150 | } |
5151 | |
5152 | /* Add a constraint to "bmap" expressing i_pos <= o_pos |
5153 | */ |
5154 | static __isl_give isl_basic_map *var_less_or_equal( |
5155 | __isl_take isl_basic_map *bmap, unsigned pos) |
5156 | { |
5157 | int i; |
5158 | isl_size nparam; |
5159 | isl_size n_in; |
5160 | isl_size total; |
5161 | |
5162 | total = isl_basic_map_dim(bmap, isl_dim_all); |
5163 | nparam = isl_basic_map_dim(bmap, isl_dim_param); |
5164 | n_in = isl_basic_map_dim(bmap, isl_dim_in); |
5165 | if (total < 0 || nparam < 0 || n_in < 0) |
5166 | return isl_basic_map_free(bmap); |
5167 | i = isl_basic_map_alloc_inequality(bmap); |
5168 | if (i < 0) |
5169 | goto error; |
5170 | isl_seq_clr(bmap->ineq[i], 1 + total); |
5171 | isl_int_set_si(bmap->ineq[i][1+nparam+pos], -1)isl_sioimath_set_si((bmap->ineq[i][1+nparam+pos]), -1); |
5172 | isl_int_set_si(bmap->ineq[i][1+nparam+n_in+pos], 1)isl_sioimath_set_si((bmap->ineq[i][1+nparam+n_in+pos]), 1); |
5173 | return isl_basic_map_finalize(bmap); |
5174 | error: |
5175 | isl_basic_map_free(bmap); |
5176 | return NULL((void*)0); |
5177 | } |
5178 | |
5179 | /* Add a constraint to "bmap" expressing i_pos > o_pos |
5180 | */ |
5181 | static __isl_give isl_basic_map *var_more(__isl_take isl_basic_map *bmap, |
5182 | unsigned pos) |
5183 | { |
5184 | int i; |
5185 | isl_size nparam; |
5186 | isl_size n_in; |
5187 | isl_size total; |
5188 | |
5189 | total = isl_basic_map_dim(bmap, isl_dim_all); |
5190 | nparam = isl_basic_map_dim(bmap, isl_dim_param); |
5191 | n_in = isl_basic_map_dim(bmap, isl_dim_in); |
5192 | if (total < 0 || nparam < 0 || n_in < 0) |
5193 | return isl_basic_map_free(bmap); |
5194 | i = isl_basic_map_alloc_inequality(bmap); |
5195 | if (i < 0) |
5196 | goto error; |
5197 | isl_seq_clr(bmap->ineq[i], 1 + total); |
5198 | isl_int_set_si(bmap->ineq[i][0], -1)isl_sioimath_set_si((bmap->ineq[i][0]), -1); |
5199 | isl_int_set_si(bmap->ineq[i][1+nparam+pos], 1)isl_sioimath_set_si((bmap->ineq[i][1+nparam+pos]), 1); |
5200 | isl_int_set_si(bmap->ineq[i][1+nparam+n_in+pos], -1)isl_sioimath_set_si((bmap->ineq[i][1+nparam+n_in+pos]), -1 ); |
5201 | return isl_basic_map_finalize(bmap); |
5202 | error: |
5203 | isl_basic_map_free(bmap); |
5204 | return NULL((void*)0); |
5205 | } |
5206 | |
5207 | /* Add a constraint to "bmap" expressing i_pos >= o_pos |
5208 | */ |
5209 | static __isl_give isl_basic_map *var_more_or_equal( |
5210 | __isl_take isl_basic_map *bmap, unsigned pos) |
5211 | { |
5212 | int i; |
5213 | isl_size nparam; |
5214 | isl_size n_in; |
5215 | isl_size total; |
5216 | |
5217 | total = isl_basic_map_dim(bmap, isl_dim_all); |
5218 | nparam = isl_basic_map_dim(bmap, isl_dim_param); |
5219 | n_in = isl_basic_map_dim(bmap, isl_dim_in); |
5220 | if (total < 0 || nparam < 0 || n_in < 0) |
5221 | return isl_basic_map_free(bmap); |
5222 | i = isl_basic_map_alloc_inequality(bmap); |
5223 | if (i < 0) |
5224 | goto error; |
5225 | isl_seq_clr(bmap->ineq[i], 1 + total); |
5226 | isl_int_set_si(bmap->ineq[i][1+nparam+pos], 1)isl_sioimath_set_si((bmap->ineq[i][1+nparam+pos]), 1); |
5227 | isl_int_set_si(bmap->ineq[i][1+nparam+n_in+pos], -1)isl_sioimath_set_si((bmap->ineq[i][1+nparam+n_in+pos]), -1 ); |
5228 | return isl_basic_map_finalize(bmap); |
5229 | error: |
5230 | isl_basic_map_free(bmap); |
5231 | return NULL((void*)0); |
5232 | } |
5233 | |
5234 | __isl_give isl_basic_map *isl_basic_map_equal( |
5235 | __isl_take isl_space *space, unsigned n_equal) |
5236 | { |
5237 | int i; |
5238 | struct isl_basic_map *bmap; |
5239 | bmap = isl_basic_map_alloc_space(space, 0, n_equal, 0); |
5240 | if (!bmap) |
5241 | return NULL((void*)0); |
5242 | for (i = 0; i < n_equal && bmap; ++i) |
5243 | bmap = var_equal(bmap, i); |
5244 | return isl_basic_map_finalize(bmap); |
5245 | } |
5246 | |
5247 | /* Return a relation on of dimension "space" expressing i_[0..pos] << o_[0..pos] |
5248 | */ |
5249 | __isl_give isl_basic_map *isl_basic_map_less_at(__isl_take isl_space *space, |
5250 | unsigned pos) |
5251 | { |
5252 | int i; |
5253 | struct isl_basic_map *bmap; |
5254 | bmap = isl_basic_map_alloc_space(space, 0, pos, 1); |
5255 | if (!bmap) |
5256 | return NULL((void*)0); |
5257 | for (i = 0; i < pos && bmap; ++i) |
5258 | bmap = var_equal(bmap, i); |
5259 | if (bmap) |
5260 | bmap = var_less(bmap, pos); |
5261 | return isl_basic_map_finalize(bmap); |
5262 | } |
5263 | |
5264 | /* Return a relation on "space" expressing i_[0..pos] <<= o_[0..pos] |
5265 | */ |
5266 | __isl_give isl_basic_map *isl_basic_map_less_or_equal_at( |
5267 | __isl_take isl_space *space, unsigned pos) |
5268 | { |
5269 | int i; |
5270 | isl_basic_map *bmap; |
5271 | |
5272 | bmap = isl_basic_map_alloc_space(space, 0, pos, 1); |
5273 | for (i = 0; i < pos; ++i) |
5274 | bmap = var_equal(bmap, i); |
5275 | bmap = var_less_or_equal(bmap, pos); |
5276 | return isl_basic_map_finalize(bmap); |
5277 | } |
5278 | |
5279 | /* Return a relation on "space" expressing i_pos > o_pos |
5280 | */ |
5281 | __isl_give isl_basic_map *isl_basic_map_more_at(__isl_take isl_space *space, |
5282 | unsigned pos) |
5283 | { |
5284 | int i; |
5285 | struct isl_basic_map *bmap; |
5286 | bmap = isl_basic_map_alloc_space(space, 0, pos, 1); |
5287 | if (!bmap) |
5288 | return NULL((void*)0); |
5289 | for (i = 0; i < pos && bmap; ++i) |
5290 | bmap = var_equal(bmap, i); |
5291 | if (bmap) |
5292 | bmap = var_more(bmap, pos); |
5293 | return isl_basic_map_finalize(bmap); |
5294 | } |
5295 | |
5296 | /* Return a relation on "space" expressing i_[0..pos] >>= o_[0..pos] |
5297 | */ |
5298 | __isl_give isl_basic_map *isl_basic_map_more_or_equal_at( |
5299 | __isl_take isl_space *space, unsigned pos) |
5300 | { |
5301 | int i; |
5302 | isl_basic_map *bmap; |
5303 | |
5304 | bmap = isl_basic_map_alloc_space(space, 0, pos, 1); |
5305 | for (i = 0; i < pos; ++i) |
5306 | bmap = var_equal(bmap, i); |
5307 | bmap = var_more_or_equal(bmap, pos); |
5308 | return isl_basic_map_finalize(bmap); |
5309 | } |
5310 | |
5311 | static __isl_give isl_map *map_lex_lte_first(__isl_take isl_space *space, |
5312 | unsigned n, int equal) |
5313 | { |
5314 | struct isl_map *map; |
5315 | int i; |
5316 | |
5317 | if (n == 0 && equal) |
5318 | return isl_map_universe(space); |
5319 | |
5320 | map = isl_map_alloc_space(isl_space_copy(space), n, ISL_MAP_DISJOINT(1 << 0)); |
5321 | |
5322 | for (i = 0; i + 1 < n; ++i) |
5323 | map = isl_map_add_basic_map(map, |
5324 | isl_basic_map_less_at(isl_space_copy(space), i)); |
5325 | if (n > 0) { |
5326 | if (equal) |
5327 | map = isl_map_add_basic_map(map, |
5328 | isl_basic_map_less_or_equal_at(space, n - 1)); |
5329 | else |
5330 | map = isl_map_add_basic_map(map, |
5331 | isl_basic_map_less_at(space, n - 1)); |
5332 | } else |
5333 | isl_space_free(space); |
5334 | |
5335 | return map; |
5336 | } |
5337 | |
5338 | static __isl_give isl_map *map_lex_lte(__isl_take isl_space *space, int equal) |
5339 | { |
5340 | if (!space) |
5341 | return NULL((void*)0); |
5342 | return map_lex_lte_first(space, space->n_out, equal); |
5343 | } |
5344 | |
5345 | __isl_give isl_map *isl_map_lex_lt_first(__isl_take isl_space *space, |
5346 | unsigned n) |
5347 | { |
5348 | return map_lex_lte_first(space, n, 0); |
5349 | } |
5350 | |
5351 | __isl_give isl_map *isl_map_lex_le_first(__isl_take isl_space *space, |
5352 | unsigned n) |
5353 | { |
5354 | return map_lex_lte_first(space, n, 1); |
5355 | } |
5356 | |
5357 | __isl_give isl_map *isl_map_lex_lt(__isl_take isl_space *set_space) |
5358 | { |
5359 | return map_lex_lte(isl_space_map_from_set(set_space), 0); |
5360 | } |
5361 | |
5362 | __isl_give isl_map *isl_map_lex_le(__isl_take isl_space *set_space) |
5363 | { |
5364 | return map_lex_lte(isl_space_map_from_set(set_space), 1); |
5365 | } |
5366 | |
5367 | static __isl_give isl_map *map_lex_gte_first(__isl_take isl_space *space, |
5368 | unsigned n, int equal) |
5369 | { |
5370 | struct isl_map *map; |
5371 | int i; |
5372 | |
5373 | if (n == 0 && equal) |
5374 | return isl_map_universe(space); |
5375 | |
5376 | map = isl_map_alloc_space(isl_space_copy(space), n, ISL_MAP_DISJOINT(1 << 0)); |
5377 | |
5378 | for (i = 0; i + 1 < n; ++i) |
5379 | map = isl_map_add_basic_map(map, |
5380 | isl_basic_map_more_at(isl_space_copy(space), i)); |
5381 | if (n > 0) { |
5382 | if (equal) |
5383 | map = isl_map_add_basic_map(map, |
5384 | isl_basic_map_more_or_equal_at(space, n - 1)); |
5385 | else |
5386 | map = isl_map_add_basic_map(map, |
5387 | isl_basic_map_more_at(space, n - 1)); |
5388 | } else |
5389 | isl_space_free(space); |
5390 | |
5391 | return map; |
5392 | } |
5393 | |
5394 | static __isl_give isl_map *map_lex_gte(__isl_take isl_space *space, int equal) |
5395 | { |
5396 | if (!space) |
5397 | return NULL((void*)0); |
5398 | return map_lex_gte_first(space, space->n_out, equal); |
5399 | } |
5400 | |
5401 | __isl_give isl_map *isl_map_lex_gt_first(__isl_take isl_space *space, |
5402 | unsigned n) |
5403 | { |
5404 | return map_lex_gte_first(space, n, 0); |
5405 | } |
5406 | |
5407 | __isl_give isl_map *isl_map_lex_ge_first(__isl_take isl_space *space, |
5408 | unsigned n) |
5409 | { |
5410 | return map_lex_gte_first(space, n, 1); |
5411 | } |
5412 | |
5413 | __isl_give isl_map *isl_map_lex_gt(__isl_take isl_space *set_space) |
5414 | { |
5415 | return map_lex_gte(isl_space_map_from_set(set_space), 0); |
5416 | } |
5417 | |
5418 | __isl_give isl_map *isl_map_lex_ge(__isl_take isl_space *set_space) |
5419 | { |
5420 | return map_lex_gte(isl_space_map_from_set(set_space), 1); |
5421 | } |
5422 | |
5423 | __isl_give isl_map *isl_set_lex_le_set(__isl_take isl_setisl_map *set1, |
5424 | __isl_take isl_setisl_map *set2) |
5425 | { |
5426 | isl_map *map; |
5427 | map = isl_map_lex_le(isl_set_get_space(set1)); |
5428 | map = isl_map_intersect_domain(map, set1); |
5429 | map = isl_map_intersect_range(map, set2); |
5430 | return map; |
5431 | } |
5432 | |
5433 | __isl_give isl_map *isl_set_lex_lt_set(__isl_take isl_setisl_map *set1, |
5434 | __isl_take isl_setisl_map *set2) |
5435 | { |
5436 | isl_map *map; |
5437 | map = isl_map_lex_lt(isl_set_get_space(set1)); |
5438 | map = isl_map_intersect_domain(map, set1); |
5439 | map = isl_map_intersect_range(map, set2); |
5440 | return map; |
5441 | } |
5442 | |
5443 | __isl_give isl_map *isl_set_lex_ge_set(__isl_take isl_setisl_map *set1, |
5444 | __isl_take isl_setisl_map *set2) |
5445 | { |
5446 | isl_map *map; |
5447 | map = isl_map_lex_ge(isl_set_get_space(set1)); |
5448 | map = isl_map_intersect_domain(map, set1); |
5449 | map = isl_map_intersect_range(map, set2); |
5450 | return map; |
5451 | } |
5452 | |
5453 | __isl_give isl_map *isl_set_lex_gt_set(__isl_take isl_setisl_map *set1, |
5454 | __isl_take isl_setisl_map *set2) |
5455 | { |
5456 | isl_map *map; |
5457 | map = isl_map_lex_gt(isl_set_get_space(set1)); |
5458 | map = isl_map_intersect_domain(map, set1); |
5459 | map = isl_map_intersect_range(map, set2); |
5460 | return map; |
5461 | } |
5462 | |
5463 | __isl_give isl_map *isl_map_lex_le_map(__isl_take isl_map *map1, |
5464 | __isl_take isl_map *map2) |
5465 | { |
5466 | isl_map *map; |
5467 | map = isl_map_lex_le(isl_space_range(isl_map_get_space(map1))); |
5468 | map = isl_map_apply_domain(map, isl_map_reverse(map1)); |
5469 | map = isl_map_apply_range(map, isl_map_reverse(map2)); |
5470 | return map; |
5471 | } |
5472 | |
5473 | __isl_give isl_map *isl_map_lex_lt_map(__isl_take isl_map *map1, |
5474 | __isl_take isl_map *map2) |
5475 | { |
5476 | isl_map *map; |
5477 | map = isl_map_lex_lt(isl_space_range(isl_map_get_space(map1))); |
5478 | map = isl_map_apply_domain(map, isl_map_reverse(map1)); |
5479 | map = isl_map_apply_range(map, isl_map_reverse(map2)); |
5480 | return map; |
5481 | } |
5482 | |
5483 | __isl_give isl_map *isl_map_lex_ge_map(__isl_take isl_map *map1, |
5484 | __isl_take isl_map *map2) |
5485 | { |
5486 | isl_map *map; |
5487 | map = isl_map_lex_ge(isl_space_range(isl_map_get_space(map1))); |
5488 | map = isl_map_apply_domain(map, isl_map_reverse(map1)); |
5489 | map = isl_map_apply_range(map, isl_map_reverse(map2)); |
5490 | return map; |
5491 | } |
5492 | |
5493 | __isl_give isl_map *isl_map_lex_gt_map(__isl_take isl_map *map1, |
5494 | __isl_take isl_map *map2) |
5495 | { |
5496 | isl_map *map; |
5497 | map = isl_map_lex_gt(isl_space_range(isl_map_get_space(map1))); |
5498 | map = isl_map_apply_domain(map, isl_map_reverse(map1)); |
5499 | map = isl_map_apply_range(map, isl_map_reverse(map2)); |
5500 | return map; |
5501 | } |
5502 | |
5503 | /* For the div d = floor(f/m) at position "div", add the constraint |
5504 | * |
5505 | * f - m d >= 0 |
5506 | */ |
5507 | static __isl_give isl_basic_map *add_upper_div_constraint( |
5508 | __isl_take isl_basic_map *bmap, unsigned div) |
5509 | { |
5510 | int i; |
5511 | isl_size v_div = isl_basic_map_var_offset(bmap, isl_dim_div); |
5512 | isl_size n_div; |
5513 | unsigned pos; |
5514 | |
5515 | n_div = isl_basic_map_dim(bmap, isl_dim_div); |
5516 | if (v_div < 0 || n_div < 0) |
5517 | return isl_basic_map_free(bmap); |
5518 | pos = v_div + div; |
5519 | i = isl_basic_map_alloc_inequality(bmap); |
5520 | if (i < 0) |
5521 | return isl_basic_map_free(bmap); |
5522 | isl_seq_cpy(bmap->ineq[i], bmap->div[div] + 1, 1 + v_div + n_div); |
5523 | isl_int_neg(bmap->ineq[i][1 + pos], bmap->div[div][0])isl_sioimath_neg((bmap->ineq[i][1 + pos]), *(bmap->div[ div][0])); |
5524 | |
5525 | return bmap; |
5526 | } |
5527 | |
5528 | /* For the div d = floor(f/m) at position "div", add the constraint |
5529 | * |
5530 | * -(f-(m-1)) + m d >= 0 |
5531 | */ |
5532 | static __isl_give isl_basic_map *add_lower_div_constraint( |
5533 | __isl_take isl_basic_map *bmap, unsigned div) |
5534 | { |
5535 | int i; |
5536 | isl_size v_div = isl_basic_map_var_offset(bmap, isl_dim_div); |
5537 | isl_size n_div; |
5538 | unsigned pos; |
5539 | |
5540 | n_div = isl_basic_map_dim(bmap, isl_dim_div); |
5541 | if (v_div < 0 || n_div < 0) |
5542 | return isl_basic_map_free(bmap); |
5543 | pos = v_div + div; |
5544 | i = isl_basic_map_alloc_inequality(bmap); |
5545 | if (i < 0) |
5546 | return isl_basic_map_free(bmap); |
5547 | isl_seq_neg(bmap->ineq[i], bmap->div[div] + 1, 1 + v_div + n_div); |
5548 | isl_int_set(bmap->ineq[i][1 + pos], bmap->div[div][0])isl_sioimath_set((bmap->ineq[i][1 + pos]), *(bmap->div[ div][0])); |
5549 | isl_int_add(bmap->ineq[i][0], bmap->ineq[i][0], bmap->ineq[i][1 + pos])isl_sioimath_add((bmap->ineq[i][0]), *(bmap->ineq[i][0] ), *(bmap->ineq[i][1 + pos])); |
5550 | isl_int_sub_ui(bmap->ineq[i][0], bmap->ineq[i][0], 1)isl_sioimath_sub_ui((bmap->ineq[i][0]), *(bmap->ineq[i] [0]), 1); |
5551 | |
5552 | return bmap; |
5553 | } |
5554 | |
5555 | /* For the div d = floor(f/m) at position "pos", add the constraints |
5556 | * |
5557 | * f - m d >= 0 |
5558 | * -(f-(m-1)) + m d >= 0 |
5559 | * |
5560 | * Note that the second constraint is the negation of |
5561 | * |
5562 | * f - m d >= m |
5563 | */ |
5564 | __isl_give isl_basic_map *isl_basic_map_add_div_constraints( |
5565 | __isl_take isl_basic_map *bmap, unsigned pos) |
5566 | { |
5567 | bmap = add_upper_div_constraint(bmap, pos); |
5568 | bmap = add_lower_div_constraint(bmap, pos); |
5569 | return bmap; |
5570 | } |
5571 | |
5572 | /* For each known div d = floor(f/m), add the constraints |
5573 | * |
5574 | * f - m d >= 0 |
5575 | * -(f-(m-1)) + m d >= 0 |
5576 | * |
5577 | * Remove duplicate constraints in case of some these div constraints |
5578 | * already appear in "bmap". |
5579 | */ |
5580 | __isl_give isl_basic_map *isl_basic_map_add_known_div_constraints( |
5581 | __isl_take isl_basic_map *bmap) |
5582 | { |
5583 | isl_size n_div; |
5584 | |
5585 | n_div = isl_basic_map_dim(bmap, isl_dim_div); |
5586 | if (n_div < 0) |
5587 | return isl_basic_map_free(bmap); |
5588 | if (n_div == 0) |
5589 | return bmap; |
5590 | |
5591 | bmap = add_known_div_constraints(bmap); |
5592 | bmap = isl_basic_map_remove_duplicate_constraints(bmap, NULL((void*)0), 0); |
5593 | bmap = isl_basic_map_finalize(bmap); |
5594 | return bmap; |
5595 | } |
5596 | |
5597 | /* Add the div constraint of sign "sign" for div "div" of "bmap". |
5598 | * |
5599 | * In particular, if this div is of the form d = floor(f/m), |
5600 | * then add the constraint |
5601 | * |
5602 | * f - m d >= 0 |
5603 | * |
5604 | * if sign < 0 or the constraint |
5605 | * |
5606 | * -(f-(m-1)) + m d >= 0 |
5607 | * |
5608 | * if sign > 0. |
5609 | */ |
5610 | __isl_give isl_basic_map *isl_basic_map_add_div_constraint( |
5611 | __isl_take isl_basic_map *bmap, unsigned div, int sign) |
5612 | { |
5613 | if (sign < 0) |
5614 | return add_upper_div_constraint(bmap, div); |
5615 | else |
5616 | return add_lower_div_constraint(bmap, div); |
5617 | } |
5618 | |
5619 | __isl_give isl_basic_setisl_basic_map *isl_basic_map_underlying_set( |
5620 | __isl_take isl_basic_map *bmap) |
5621 | { |
5622 | isl_space *space; |
5623 | |
5624 | if (!bmap) |
5625 | goto error; |
5626 | if (bmap->dim->nparam == 0 && bmap->dim->n_in == 0 && |
5627 | bmap->n_div == 0 && |
5628 | !isl_space_is_named_or_nested(bmap->dim, isl_dim_in) && |
5629 | !isl_space_is_named_or_nested(bmap->dim, isl_dim_out)) |
5630 | return bset_from_bmap(bmap); |
5631 | bmap = isl_basic_map_cow(bmap); |
5632 | if (!bmap) |
5633 | return NULL((void*)0); |
5634 | space = isl_basic_map_take_space(bmap); |
5635 | space = isl_space_underlying(space, bmap->n_div); |
5636 | bmap = isl_basic_map_restore_space(bmap, space); |
5637 | if (!bmap) |
5638 | return NULL((void*)0); |
5639 | bmap->extra -= bmap->n_div; |
5640 | bmap->n_div = 0; |
5641 | bmap = isl_basic_map_finalize(bmap); |
5642 | return bset_from_bmap(bmap); |
5643 | error: |
5644 | isl_basic_map_free(bmap); |
5645 | return NULL((void*)0); |
5646 | } |
5647 | |
5648 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_underlying_set( |
5649 | __isl_take isl_basic_setisl_basic_map *bset) |
5650 | { |
5651 | return isl_basic_map_underlying_set(bset_to_bmap(bset)); |
5652 | } |
5653 | |
5654 | /* Replace each element in "list" by the result of applying |
5655 | * isl_basic_map_underlying_set to the element. |
5656 | */ |
5657 | __isl_give isl_basic_set_listisl_basic_map_list *isl_basic_map_list_underlying_set( |
5658 | __isl_take isl_basic_map_list *list) |
5659 | { |
5660 | int i; |
5661 | isl_size n; |
5662 | |
5663 | n = isl_basic_map_list_n_basic_map(list); |
5664 | if (n < 0) |
5665 | goto error; |
5666 | |
5667 | for (i = 0; i < n; ++i) { |
5668 | isl_basic_map *bmap; |
5669 | isl_basic_setisl_basic_map *bset; |
5670 | |
5671 | bmap = isl_basic_map_list_get_basic_map(list, i); |
5672 | bset = isl_basic_set_underlying_set(bmap); |
5673 | list = isl_basic_set_list_set_basic_set(list, i, bset); |
5674 | } |
5675 | |
5676 | return list; |
5677 | error: |
5678 | isl_basic_map_list_free(list); |
5679 | return NULL((void*)0); |
5680 | } |
5681 | |
5682 | __isl_give isl_basic_map *isl_basic_map_overlying_set( |
5683 | __isl_take isl_basic_setisl_basic_map *bset, __isl_take isl_basic_map *like) |
5684 | { |
5685 | struct isl_basic_map *bmap; |
5686 | struct isl_ctx *ctx; |
5687 | isl_size dim, bmap_total; |
5688 | unsigned total; |
5689 | int i; |
5690 | |
5691 | if (!bset || !like) |
5692 | goto error; |
5693 | ctx = bset->ctx; |
5694 | if (isl_basic_set_check_no_params(bset) < 0 || |
5695 | isl_basic_set_check_no_locals(bset) < 0) |
5696 | goto error; |
5697 | dim = isl_basic_set_dim(bset, isl_dim_set); |
5698 | bmap_total = isl_basic_map_dim(like, isl_dim_all); |
5699 | if (dim < 0 || bmap_total < 0) |
5700 | goto error; |
5701 | isl_assert(ctx, dim == bmap_total, goto error)do { if (dim == bmap_total) break; do { isl_handle_error(ctx, isl_error_unknown, "Assertion \"" "dim == bmap_total" "\" failed" , "polly/lib/External/isl/isl_map.c", 5701); goto error; } while (0); } while (0); |
5702 | if (like->n_div == 0) { |
5703 | isl_space *space = isl_basic_map_get_space(like); |
5704 | isl_basic_map_free(like); |
5705 | return isl_basic_map_reset_space(bset, space); |
5706 | } |
5707 | bset = isl_basic_set_cow(bset); |
5708 | if (!bset) |
5709 | goto error; |
5710 | total = dim + bset->extra; |
5711 | bmap = bset_to_bmap(bset); |
5712 | isl_space_free(isl_basic_map_take_space(bmap)); |
5713 | bmap = isl_basic_map_restore_space(bmap, isl_basic_map_get_space(like)); |
5714 | if (!bmap) |
5715 | goto error; |
5716 | bmap->n_div = like->n_div; |
5717 | bmap->extra += like->n_div; |
5718 | if (bmap->extra) { |
5719 | unsigned ltotal; |
5720 | isl_int **div; |
5721 | ltotal = total - bmap->extra + like->extra; |
5722 | if (ltotal > total) |
5723 | ltotal = total; |
5724 | bmap->block2 = isl_blk_extend(ctx, bmap->block2, |
5725 | bmap->extra * (1 + 1 + total)); |
5726 | if (isl_blk_is_error(bmap->block2)) |
5727 | goto error; |
5728 | div = isl_realloc_array(ctx, bmap->div, isl_int *, bmap->extra)((isl_int * *)isl_realloc_or_die(ctx, bmap->div, (bmap-> extra)*sizeof(isl_int *))); |
5729 | if (!div) |
5730 | goto error; |
5731 | bmap->div = div; |
5732 | for (i = 0; i < bmap->extra; ++i) |
5733 | bmap->div[i] = bmap->block2.data + i * (1 + 1 + total); |
5734 | for (i = 0; i < like->n_div; ++i) { |
5735 | isl_seq_cpy(bmap->div[i], like->div[i], 1 + 1 + ltotal); |
5736 | isl_seq_clr(bmap->div[i]+1+1+ltotal, total - ltotal); |
5737 | } |
5738 | bmap = isl_basic_map_add_known_div_constraints(bmap); |
5739 | } |
5740 | isl_basic_map_free(like); |
5741 | bmap = isl_basic_map_simplify(bmap); |
5742 | bmap = isl_basic_map_finalize(bmap); |
5743 | return bmap; |
5744 | error: |
5745 | isl_basic_map_free(like); |
5746 | isl_basic_set_free(bset); |
5747 | return NULL((void*)0); |
5748 | } |
5749 | |
5750 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_from_underlying_set( |
5751 | __isl_take isl_basic_setisl_basic_map *bset, __isl_take isl_basic_setisl_basic_map *like) |
5752 | { |
5753 | return bset_from_bmap(isl_basic_map_overlying_set(bset, |
5754 | bset_to_bmap(like))); |
5755 | } |
5756 | |
5757 | __isl_give isl_setisl_map *isl_map_underlying_set(__isl_take isl_map *map) |
5758 | { |
5759 | int i; |
5760 | |
5761 | map = isl_map_cow(map); |
5762 | if (!map) |
5763 | return NULL((void*)0); |
5764 | map->dim = isl_space_cow(map->dim); |
5765 | if (!map->dim) |
5766 | goto error; |
5767 | |
5768 | for (i = 1; i < map->n; ++i) |
5769 | isl_assert(map->ctx, map->p[0]->n_div == map->p[i]->n_div,do { if (map->p[0]->n_div == map->p[i]->n_div) break ; do { isl_handle_error(map->ctx, isl_error_unknown, "Assertion \"" "map->p[0]->n_div == map->p[i]->n_div" "\" failed" , "polly/lib/External/isl/isl_map.c", 5770); goto error; } while (0); } while (0) |
5770 | goto error)do { if (map->p[0]->n_div == map->p[i]->n_div) break ; do { isl_handle_error(map->ctx, isl_error_unknown, "Assertion \"" "map->p[0]->n_div == map->p[i]->n_div" "\" failed" , "polly/lib/External/isl/isl_map.c", 5770); goto error; } while (0); } while (0); |
5771 | for (i = 0; i < map->n; ++i) { |
5772 | map->p[i] = bset_to_bmap( |
5773 | isl_basic_map_underlying_set(map->p[i])); |
5774 | if (!map->p[i]) |
5775 | goto error; |
5776 | } |
5777 | if (map->n == 0) |
5778 | map->dim = isl_space_underlying(map->dim, 0); |
5779 | else { |
5780 | isl_space_free(map->dim); |
5781 | map->dim = isl_space_copy(map->p[0]->dim); |
5782 | } |
5783 | if (!map->dim) |
5784 | goto error; |
5785 | return set_from_map(map); |
5786 | error: |
5787 | isl_map_free(map); |
5788 | return NULL((void*)0); |
5789 | } |
5790 | |
5791 | /* Replace the space of "bmap" by "space". |
5792 | * |
5793 | * If the space of "bmap" is identical to "space" (including the identifiers |
5794 | * of the input and output dimensions), then simply return the original input. |
5795 | */ |
5796 | __isl_give isl_basic_map *isl_basic_map_reset_space( |
5797 | __isl_take isl_basic_map *bmap, __isl_take isl_space *space) |
5798 | { |
5799 | isl_bool equal; |
5800 | isl_space *bmap_space; |
5801 | |
5802 | bmap_space = isl_basic_map_peek_space(bmap); |
5803 | equal = isl_space_is_equal(bmap_space, space); |
5804 | if (equal >= 0 && equal) |
5805 | equal = isl_space_has_equal_ids(bmap_space, space); |
5806 | if (equal < 0) |
5807 | goto error; |
5808 | if (equal) { |
5809 | isl_space_free(space); |
5810 | return bmap; |
5811 | } |
5812 | isl_space_free(isl_basic_map_take_space(bmap)); |
5813 | bmap = isl_basic_map_restore_space(bmap, space); |
5814 | |
5815 | bmap = isl_basic_map_finalize(bmap); |
5816 | |
5817 | return bmap; |
5818 | error: |
5819 | isl_basic_map_free(bmap); |
5820 | isl_space_free(space); |
5821 | return NULL((void*)0); |
5822 | } |
5823 | |
5824 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_reset_space( |
5825 | __isl_take isl_basic_setisl_basic_map *bset, __isl_take isl_space *space) |
5826 | { |
5827 | return bset_from_bmap(isl_basic_map_reset_space(bset_to_bmap(bset), |
5828 | space)); |
5829 | } |
5830 | |
5831 | /* Check that the total dimensions of "map" and "space" are the same. |
5832 | */ |
5833 | static isl_stat check_map_space_equal_total_dim(__isl_keep isl_map *map, |
5834 | __isl_keep isl_space *space) |
5835 | { |
5836 | isl_size dim1, dim2; |
5837 | |
5838 | dim1 = isl_map_dim(map, isl_dim_all); |
5839 | dim2 = isl_space_dim(space, isl_dim_all); |
5840 | if (dim1 < 0 || dim2 < 0) |
5841 | return isl_stat_error; |
5842 | if (dim1 == dim2) |
5843 | return isl_stat_ok; |
5844 | isl_die(isl_map_get_ctx(map), isl_error_invalid,do { isl_handle_error(isl_map_get_ctx(map), isl_error_invalid , "total dimensions do not match", "polly/lib/External/isl/isl_map.c" , 5845); return isl_stat_error; } while (0) |
5845 | "total dimensions do not match", return isl_stat_error)do { isl_handle_error(isl_map_get_ctx(map), isl_error_invalid , "total dimensions do not match", "polly/lib/External/isl/isl_map.c" , 5845); return isl_stat_error; } while (0); |
5846 | } |
5847 | |
5848 | __isl_give isl_map *isl_map_reset_space(__isl_take isl_map *map, |
5849 | __isl_take isl_space *space) |
5850 | { |
5851 | int i; |
5852 | |
5853 | map = isl_map_cow(map); |
5854 | if (!map || !space) |
5855 | goto error; |
5856 | |
5857 | for (i = 0; i < map->n; ++i) { |
5858 | map->p[i] = isl_basic_map_reset_space(map->p[i], |
5859 | isl_space_copy(space)); |
5860 | if (!map->p[i]) |
5861 | goto error; |
5862 | } |
5863 | isl_space_free(isl_map_take_space(map)); |
5864 | map = isl_map_restore_space(map, space); |
5865 | |
5866 | return map; |
5867 | error: |
5868 | isl_map_free(map); |
5869 | isl_space_free(space); |
5870 | return NULL((void*)0); |
5871 | } |
5872 | |
5873 | /* Replace the space of "map" by "space", without modifying |
5874 | * the dimension of "map". |
5875 | * |
5876 | * If the space of "map" is identical to "space" (including the identifiers |
5877 | * of the input and output dimensions), then simply return the original input. |
5878 | */ |
5879 | __isl_give isl_map *isl_map_reset_equal_dim_space(__isl_take isl_map *map, |
5880 | __isl_take isl_space *space) |
5881 | { |
5882 | isl_bool equal; |
5883 | isl_space *map_space; |
5884 | |
5885 | map_space = isl_map_peek_space(map); |
5886 | equal = isl_space_is_equal(map_space, space); |
5887 | if (equal >= 0 && equal) |
5888 | equal = isl_space_has_equal_ids(map_space, space); |
5889 | if (equal < 0) |
5890 | goto error; |
5891 | if (equal) { |
5892 | isl_space_free(space); |
5893 | return map; |
5894 | } |
5895 | if (check_map_space_equal_total_dim(map, space) < 0) |
5896 | goto error; |
5897 | return isl_map_reset_space(map, space); |
5898 | error: |
5899 | isl_map_free(map); |
5900 | isl_space_free(space); |
5901 | return NULL((void*)0); |
5902 | } |
5903 | |
5904 | __isl_give isl_setisl_map *isl_set_reset_space(__isl_take isl_setisl_map *set, |
5905 | __isl_take isl_space *space) |
5906 | { |
5907 | return set_from_map(isl_map_reset_space(set_to_map(set), space)); |
5908 | } |
5909 | |
5910 | /* Compute the parameter domain of the given basic set. |
5911 | */ |
5912 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_params(__isl_take isl_basic_setisl_basic_map *bset) |
5913 | { |
5914 | isl_bool is_params; |
5915 | isl_space *space; |
5916 | isl_size n; |
5917 | |
5918 | is_params = isl_basic_set_is_params(bset); |
5919 | if (is_params < 0) |
5920 | return isl_basic_set_free(bset); |
5921 | if (is_params) |
5922 | return bset; |
5923 | |
5924 | n = isl_basic_set_dim(bset, isl_dim_set); |
5925 | if (n < 0) |
5926 | return isl_basic_set_free(bset); |
5927 | bset = isl_basic_set_project_out(bset, isl_dim_set, 0, n); |
5928 | space = isl_basic_set_get_space(bset); |
5929 | space = isl_space_params(space); |
5930 | bset = isl_basic_set_reset_space(bset, space); |
5931 | return bset; |
5932 | } |
5933 | |
5934 | /* Construct a zero-dimensional basic set with the given parameter domain. |
5935 | */ |
5936 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_from_params( |
5937 | __isl_take isl_basic_setisl_basic_map *bset) |
5938 | { |
5939 | isl_space *space; |
5940 | space = isl_basic_set_get_space(bset); |
5941 | space = isl_space_set_from_params(space); |
5942 | bset = isl_basic_set_reset_space(bset, space); |
5943 | return bset; |
5944 | } |
5945 | |
5946 | /* Compute the parameter domain of the given set. |
5947 | */ |
5948 | __isl_give isl_setisl_map *isl_set_params(__isl_take isl_setisl_map *set) |
5949 | { |
5950 | return isl_map_params(set_to_map(set)); |
5951 | } |
5952 | |
5953 | /* Construct a zero-dimensional set with the given parameter domain. |
5954 | */ |
5955 | __isl_give isl_setisl_map *isl_set_from_params(__isl_take isl_setisl_map *set) |
5956 | { |
5957 | isl_space *space; |
5958 | space = isl_set_get_space(set); |
5959 | space = isl_space_set_from_params(space); |
5960 | set = isl_set_reset_space(set, space); |
5961 | return set; |
5962 | } |
5963 | |
5964 | /* Compute the parameter domain of the given map. |
5965 | */ |
5966 | __isl_give isl_setisl_map *isl_map_params(__isl_take isl_map *map) |
5967 | { |
5968 | isl_space *space; |
5969 | isl_size n_in, n_out; |
5970 | |
5971 | n_in = isl_map_dim(map, isl_dim_in); |
5972 | n_out = isl_map_dim(map, isl_dim_out); |
5973 | if (n_in < 0 || n_out < 0) |
5974 | return isl_map_free(map); |
5975 | map = isl_map_project_out(map, isl_dim_in, 0, n_in); |
5976 | map = isl_map_project_out(map, isl_dim_out, 0, n_out); |
5977 | space = isl_map_get_space(map); |
5978 | space = isl_space_params(space); |
5979 | map = isl_map_reset_space(map, space); |
5980 | return map; |
5981 | } |
5982 | |
5983 | __isl_give isl_basic_setisl_basic_map *isl_basic_map_domain(__isl_take isl_basic_map *bmap) |
5984 | { |
5985 | isl_space *space; |
5986 | isl_size n_out; |
5987 | |
5988 | n_out = isl_basic_map_dim(bmap, isl_dim_out); |
5989 | if (n_out < 0) |
5990 | return isl_basic_map_free(bmap); |
5991 | space = isl_space_domain(isl_basic_map_get_space(bmap)); |
5992 | |
5993 | bmap = isl_basic_map_project_out(bmap, isl_dim_out, 0, n_out); |
5994 | |
5995 | return isl_basic_map_reset_space(bmap, space); |
5996 | } |
5997 | |
5998 | isl_bool isl_basic_map_may_be_set(__isl_keep isl_basic_map *bmap) |
5999 | { |
6000 | if (!bmap) |
6001 | return isl_bool_error; |
6002 | return isl_space_may_be_set(bmap->dim); |
6003 | } |
6004 | |
6005 | /* Is this basic map actually a set? |
6006 | * Users should never call this function. Outside of isl, |
6007 | * the type should indicate whether something is a set or a map. |
6008 | */ |
6009 | isl_bool isl_basic_map_is_set(__isl_keep isl_basic_map *bmap) |
6010 | { |
6011 | if (!bmap) |
6012 | return isl_bool_error; |
6013 | return isl_space_is_set(bmap->dim); |
6014 | } |
6015 | |
6016 | __isl_give isl_basic_setisl_basic_map *isl_basic_map_range(__isl_take isl_basic_map *bmap) |
6017 | { |
6018 | isl_bool is_set; |
6019 | |
6020 | is_set = isl_basic_map_is_set(bmap); |
6021 | if (is_set < 0) |
6022 | goto error; |
6023 | if (is_set) |
6024 | return bmap; |
6025 | return isl_basic_map_domain(isl_basic_map_reverse(bmap)); |
6026 | error: |
6027 | isl_basic_map_free(bmap); |
6028 | return NULL((void*)0); |
6029 | } |
6030 | |
6031 | __isl_give isl_basic_map *isl_basic_map_domain_map( |
6032 | __isl_take isl_basic_map *bmap) |
6033 | { |
6034 | int i; |
6035 | isl_space *space; |
6036 | isl_basic_map *domain; |
6037 | isl_size nparam, n_in, n_out; |
6038 | |
6039 | nparam = isl_basic_map_dim(bmap, isl_dim_param); |
6040 | n_in = isl_basic_map_dim(bmap, isl_dim_in); |
6041 | n_out = isl_basic_map_dim(bmap, isl_dim_out); |
6042 | if (nparam < 0 || n_in < 0 || n_out < 0) |
6043 | return isl_basic_map_free(bmap); |
6044 | |
6045 | space = isl_basic_map_get_space(bmap); |
6046 | space = isl_space_from_range(isl_space_domain(space)); |
6047 | domain = isl_basic_map_universe(space); |
6048 | |
6049 | bmap = isl_basic_map_from_domain(isl_basic_map_wrap(bmap)); |
6050 | bmap = isl_basic_map_apply_range(bmap, domain); |
6051 | bmap = isl_basic_map_extend_constraints(bmap, n_in, 0); |
6052 | |
6053 | for (i = 0; i < n_in; ++i) |
6054 | bmap = isl_basic_map_equate(bmap, isl_dim_in, i, |
6055 | isl_dim_out, i); |
6056 | |
6057 | bmap = isl_basic_map_gauss(bmap, NULL((void*)0)); |
6058 | return isl_basic_map_finalize(bmap); |
6059 | } |
6060 | |
6061 | __isl_give isl_basic_map *isl_basic_map_range_map( |
6062 | __isl_take isl_basic_map *bmap) |
6063 | { |
6064 | int i; |
6065 | isl_space *space; |
6066 | isl_basic_map *range; |
6067 | isl_size nparam, n_in, n_out; |
6068 | |
6069 | nparam = isl_basic_map_dim(bmap, isl_dim_param); |
6070 | n_in = isl_basic_map_dim(bmap, isl_dim_in); |
6071 | n_out = isl_basic_map_dim(bmap, isl_dim_out); |
6072 | if (nparam < 0 || n_in < 0 || n_out < 0) |
6073 | return isl_basic_map_free(bmap); |
6074 | |
6075 | space = isl_basic_map_get_space(bmap); |
6076 | space = isl_space_from_range(isl_space_range(space)); |
6077 | range = isl_basic_map_universe(space); |
6078 | |
6079 | bmap = isl_basic_map_from_domain(isl_basic_map_wrap(bmap)); |
6080 | bmap = isl_basic_map_apply_range(bmap, range); |
6081 | bmap = isl_basic_map_extend_constraints(bmap, n_out, 0); |
6082 | |
6083 | for (i = 0; i < n_out; ++i) |
6084 | bmap = isl_basic_map_equate(bmap, isl_dim_in, n_in + i, |
6085 | isl_dim_out, i); |
6086 | |
6087 | bmap = isl_basic_map_gauss(bmap, NULL((void*)0)); |
6088 | return isl_basic_map_finalize(bmap); |
6089 | } |
6090 | |
6091 | int isl_map_may_be_set(__isl_keep isl_map *map) |
6092 | { |
6093 | if (!map) |
6094 | return -1; |
6095 | return isl_space_may_be_set(map->dim); |
6096 | } |
6097 | |
6098 | /* Is this map actually a set? |
6099 | * Users should never call this function. Outside of isl, |
6100 | * the type should indicate whether something is a set or a map. |
6101 | */ |
6102 | isl_bool isl_map_is_set(__isl_keep isl_map *map) |
6103 | { |
6104 | if (!map) |
6105 | return isl_bool_error; |
6106 | return isl_space_is_set(map->dim); |
6107 | } |
6108 | |
6109 | __isl_give isl_setisl_map *isl_map_range(__isl_take isl_map *map) |
6110 | { |
6111 | isl_space *space; |
6112 | isl_size n_in; |
6113 | |
6114 | n_in = isl_map_dim(map, isl_dim_in); |
6115 | if (n_in < 0) |
6116 | return set_from_map(isl_map_free(map)); |
6117 | space = isl_space_range(isl_map_get_space(map)); |
6118 | |
6119 | map = isl_map_project_out(map, isl_dim_in, 0, n_in); |
6120 | |
6121 | return set_from_map(isl_map_reset_space(map, space)); |
6122 | } |
6123 | |
6124 | /* Transform "map" by applying "fn_space" to its space and "fn_bmap" |
6125 | * to each of its basic maps. |
6126 | */ |
6127 | static __isl_give isl_map *isl_map_transform(__isl_take isl_map *map, |
6128 | __isl_give isl_space *(*fn_space)(__isl_take isl_space *space), |
6129 | __isl_give isl_basic_map *(*fn_bmap)(__isl_take isl_basic_map *bmap)) |
6130 | { |
6131 | int i; |
6132 | isl_space *space; |
6133 | |
6134 | map = isl_map_cow(map); |
6135 | if (!map) |
6136 | return NULL((void*)0); |
6137 | |
6138 | for (i = 0; i < map->n; ++i) { |
6139 | map->p[i] = fn_bmap(map->p[i]); |
6140 | if (!map->p[i]) |
6141 | return isl_map_free(map); |
6142 | } |
6143 | map = isl_map_unmark_normalized(map); |
6144 | |
6145 | space = isl_map_take_space(map); |
6146 | space = fn_space(space); |
6147 | map = isl_map_restore_space(map, space); |
6148 | |
6149 | return map; |
6150 | } |
6151 | |
6152 | __isl_give isl_map *isl_map_domain_map(__isl_take isl_map *map) |
6153 | { |
6154 | return isl_map_transform(map, &isl_space_domain_map, |
6155 | &isl_basic_map_domain_map); |
6156 | } |
6157 | |
6158 | __isl_give isl_map *isl_map_range_map(__isl_take isl_map *map) |
6159 | { |
6160 | return isl_map_transform(map, &isl_space_range_map, |
6161 | &isl_basic_map_range_map); |
6162 | } |
6163 | |
6164 | /* Given a wrapped map of the form A[B -> C], |
6165 | * return the map A[B -> C] -> B. |
6166 | */ |
6167 | __isl_give isl_map *isl_set_wrapped_domain_map(__isl_take isl_setisl_map *set) |
6168 | { |
6169 | isl_id *id; |
6170 | isl_map *map; |
6171 | |
6172 | if (!set) |
6173 | return NULL((void*)0); |
6174 | if (!isl_set_has_tuple_id(set)) |
6175 | return isl_map_domain_map(isl_set_unwrap(set)); |
6176 | |
6177 | id = isl_set_get_tuple_id(set); |
6178 | map = isl_map_domain_map(isl_set_unwrap(set)); |
6179 | map = isl_map_set_tuple_id(map, isl_dim_in, id); |
6180 | |
6181 | return map; |
6182 | } |
6183 | |
6184 | __isl_give isl_basic_map *isl_basic_map_from_domain( |
6185 | __isl_take isl_basic_setisl_basic_map *bset) |
6186 | { |
6187 | return isl_basic_map_reverse(isl_basic_map_from_range(bset)); |
6188 | } |
6189 | |
6190 | __isl_give isl_basic_map *isl_basic_map_from_range( |
6191 | __isl_take isl_basic_setisl_basic_map *bset) |
6192 | { |
6193 | isl_space *space; |
6194 | space = isl_basic_set_get_space(bset); |
6195 | space = isl_space_from_range(space); |
6196 | bset = isl_basic_set_reset_space(bset, space); |
6197 | return bset_to_bmap(bset); |
6198 | } |
6199 | |
6200 | /* Create a relation with the given set as range. |
6201 | * The domain of the created relation is a zero-dimensional |
6202 | * flat anonymous space. |
6203 | */ |
6204 | __isl_give isl_map *isl_map_from_range(__isl_take isl_setisl_map *set) |
6205 | { |
6206 | isl_space *space; |
6207 | space = isl_set_get_space(set); |
6208 | space = isl_space_from_range(space); |
6209 | set = isl_set_reset_space(set, space); |
6210 | return set_to_map(set); |
6211 | } |
6212 | |
6213 | /* Create a relation with the given set as domain. |
6214 | * The range of the created relation is a zero-dimensional |
6215 | * flat anonymous space. |
6216 | */ |
6217 | __isl_give isl_map *isl_map_from_domain(__isl_take isl_setisl_map *set) |
6218 | { |
6219 | return isl_map_reverse(isl_map_from_range(set)); |
6220 | } |
6221 | |
6222 | __isl_give isl_basic_map *isl_basic_map_from_domain_and_range( |
6223 | __isl_take isl_basic_setisl_basic_map *domain, __isl_take isl_basic_setisl_basic_map *range) |
6224 | { |
6225 | return isl_basic_map_apply_range(isl_basic_map_reverse(domain), range); |
6226 | } |
6227 | |
6228 | __isl_give isl_map *isl_map_from_domain_and_range(__isl_take isl_setisl_map *domain, |
6229 | __isl_take isl_setisl_map *range) |
6230 | { |
6231 | return isl_map_apply_range(isl_map_reverse(domain), range); |
6232 | } |
6233 | |
6234 | /* Return a newly allocated isl_map with given space and flags and |
6235 | * room for "n" basic maps. |
6236 | * Make sure that all cached information is cleared. |
6237 | */ |
6238 | __isl_give isl_map *isl_map_alloc_space(__isl_take isl_space *space, int n, |
6239 | unsigned flags) |
6240 | { |
6241 | struct isl_map *map; |
6242 | |
6243 | if (!space) |
6244 | return NULL((void*)0); |
6245 | if (n < 0) |
6246 | isl_die(space->ctx, isl_error_internal,do { isl_handle_error(space->ctx, isl_error_internal, "negative number of basic maps" , "polly/lib/External/isl/isl_map.c", 6247); goto error; } while (0) |
6247 | "negative number of basic maps", goto error)do { isl_handle_error(space->ctx, isl_error_internal, "negative number of basic maps" , "polly/lib/External/isl/isl_map.c", 6247); goto error; } while (0); |
6248 | map = isl_calloc(space->ctx, struct isl_map,((struct isl_map *)isl_calloc_or_die(space->ctx, 1, sizeof (struct isl_map) + (n - 1) * sizeof(struct isl_basic_map *))) |
6249 | sizeof(struct isl_map) +((struct isl_map *)isl_calloc_or_die(space->ctx, 1, sizeof (struct isl_map) + (n - 1) * sizeof(struct isl_basic_map *))) |
6250 | (n - 1) * sizeof(struct isl_basic_map *))((struct isl_map *)isl_calloc_or_die(space->ctx, 1, sizeof (struct isl_map) + (n - 1) * sizeof(struct isl_basic_map *))); |
6251 | if (!map) |
6252 | goto error; |
6253 | |
6254 | map->ctx = space->ctx; |
6255 | isl_ctx_ref(map->ctx); |
6256 | map->ref = 1; |
6257 | map->size = n; |
6258 | map->n = 0; |
6259 | map->dim = space; |
6260 | map->flags = flags; |
6261 | return map; |
6262 | error: |
6263 | isl_space_free(space); |
6264 | return NULL((void*)0); |
6265 | } |
6266 | |
6267 | __isl_give isl_basic_map *isl_basic_map_empty(__isl_take isl_space *space) |
6268 | { |
6269 | struct isl_basic_map *bmap; |
6270 | bmap = isl_basic_map_alloc_space(space, 0, 1, 0); |
6271 | bmap = isl_basic_map_set_to_empty(bmap); |
6272 | return bmap; |
6273 | } |
6274 | |
6275 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_empty(__isl_take isl_space *space) |
6276 | { |
6277 | struct isl_basic_setisl_basic_map *bset; |
6278 | bset = isl_basic_set_alloc_space(space, 0, 1, 0); |
6279 | bset = isl_basic_set_set_to_empty(bset); |
6280 | return bset; |
6281 | } |
6282 | |
6283 | __isl_give isl_basic_map *isl_basic_map_universe(__isl_take isl_space *space) |
6284 | { |
6285 | struct isl_basic_map *bmap; |
6286 | bmap = isl_basic_map_alloc_space(space, 0, 0, 0); |
6287 | bmap = isl_basic_map_finalize(bmap); |
6288 | return bmap; |
6289 | } |
6290 | |
6291 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_universe(__isl_take isl_space *space) |
6292 | { |
6293 | struct isl_basic_setisl_basic_map *bset; |
6294 | bset = isl_basic_set_alloc_space(space, 0, 0, 0); |
6295 | bset = isl_basic_set_finalize(bset); |
6296 | return bset; |
6297 | } |
6298 | |
6299 | __isl_give isl_basic_map *isl_basic_map_nat_universe( |
6300 | __isl_take isl_space *space) |
6301 | { |
6302 | int i; |
6303 | isl_size total = isl_space_dim(space, isl_dim_all); |
6304 | isl_basic_map *bmap; |
6305 | |
6306 | if (total < 0) |
6307 | space = isl_space_free(space); |
6308 | bmap = isl_basic_map_alloc_space(space, 0, 0, total); |
6309 | for (i = 0; i < total; ++i) { |
6310 | int k = isl_basic_map_alloc_inequality(bmap); |
6311 | if (k < 0) |
6312 | goto error; |
6313 | isl_seq_clr(bmap->ineq[k], 1 + total); |
6314 | isl_int_set_si(bmap->ineq[k][1 + i], 1)isl_sioimath_set_si((bmap->ineq[k][1 + i]), 1); |
6315 | } |
6316 | return bmap; |
6317 | error: |
6318 | isl_basic_map_free(bmap); |
6319 | return NULL((void*)0); |
6320 | } |
6321 | |
6322 | __isl_give isl_basic_setisl_basic_map *isl_basic_set_nat_universe( |
6323 | __isl_take isl_space *space) |
6324 | { |
6325 | return isl_basic_map_nat_universe(space); |
6326 | } |
6327 | |
6328 | __isl_give isl_map *isl_map_nat_universe(__isl_take isl_space *space) |
6329 | { |
6330 | return isl_map_from_basic_map(isl_basic_map_nat_universe(space)); |
6331 | } |
6332 | |
6333 | __isl_give isl_setisl_map *isl_set_nat_universe(__isl_take isl_space *space) |
6334 | { |
6335 | return isl_map_nat_universe(space); |
6336 | } |
6337 | |
6338 | __isl_give isl_map *isl_map_empty(__isl_take isl_space *space) |
6339 | { |
6340 | return isl_map_alloc_space(space, 0, ISL_MAP_DISJOINT(1 << 0)); |
6341 | } |
6342 | |
6343 | __isl_give isl_setisl_map *isl_set_empty(__isl_take isl_space *space) |
6344 | { |
6345 | return isl_set_alloc_space(space, 0, ISL_MAP_DISJOINT(1 << 0)); |
6346 | } |
6347 | |
6348 | __isl_give isl_map *isl_map_universe(__isl_take isl_space *space) |
6349 | { |
6350 | struct isl_map *map; |
6351 | if (!space) |
6352 | return NULL((void*)0); |
6353 | map = isl_map_alloc_space(isl_space_copy(space), 1, ISL_MAP_DISJOINT(1 << 0)); |
6354 | map = isl_map_add_basic_map(map, isl_basic_map_universe(space)); |
6355 | return map; |
6356 | } |
6357 | |
6358 | /* This function performs the same operation as isl_map_universe, |
6359 | * but is considered as a function on an isl_space when exported. |
6360 | */ |
6361 | __isl_give isl_map *isl_space_universe_map(__isl_take isl_space *space) |
6362 | { |
6363 | return isl_map_universe(space); |
6364 | } |
6365 | |
6366 | __isl_give isl_setisl_map *isl_set_universe(__isl_take isl_space *space) |
6367 | { |
6368 | struct isl_setisl_map *set; |
6369 | if (!space) |
6370 | return NULL((void*)0); |
6371 | set = isl_set_alloc_space(isl_space_copy(space), 1, ISL_MAP_DISJOINT(1 << 0)); |
6372 | set = isl_set_add_basic_set(set, isl_basic_set_universe(space)); |
6373 | return set; |
6374 | } |
6375 | |
6376 | /* This function performs the same operation as isl_set_universe, |
6377 | * but is considered as a function on an isl_space when exported. |
6378 | */ |
6379 | __isl_give isl_setisl_map *isl_space_universe_set(__isl_take isl_space *space) |
6380 | { |
6381 | return isl_set_universe(space); |
6382 | } |
6383 | |
6384 | __isl_give isl_map *isl_map_dup(__isl_keep isl_map *map) |
6385 | { |
6386 | int i; |
6387 | struct isl_map *dup; |
6388 | |
6389 | if (!map) |
6390 | return NULL((void*)0); |
6391 | dup = isl_map_alloc_space(isl_space_copy(map->dim), map->n, map->flags); |
6392 | for (i = 0; i < map->n; ++i) |
6393 | dup = isl_map_add_basic_map(dup, isl_basic_map_copy(map->p[i])); |
6394 | return dup; |
6395 | } |
6396 | |
6397 | __isl_give isl_map *isl_map_add_basic_map(__isl_take isl_map *map, |
6398 | __isl_take isl_basic_map *bmap) |
6399 | { |
6400 | if (!bmap || !map) |
6401 | goto error; |
6402 | if (isl_basic_map_plain_is_empty(bmap)) { |
6403 | isl_basic_map_free(bmap); |
6404 | return map; |
6405 | } |
6406 | if (isl_map_basic_map_check_equal_space(map, bmap) < 0) |
6407 | goto error; |
6408 | isl_assert(map->ctx, map->n < map->size, goto error)do { if (map->n < map->size) break; do { isl_handle_error (map->ctx, isl_error_unknown, "Assertion \"" "map->n < map->size" "\" failed", "polly/lib/External/isl/isl_map.c", 6408); goto error; } while (0); } while (0); |
6409 | map->p[map->n] = bmap; |
6410 | map->n++; |
6411 | map = isl_map_unmark_normalized(map); |
6412 | return map; |
6413 | error: |
6414 | if (map) |
6415 | isl_map_free(map); |
6416 | if (bmap) |
6417 | isl_basic_map_free(bmap); |
6418 | return NULL((void*)0); |
6419 | } |
6420 | |
6421 | __isl_null isl_map *isl_map_free(__isl_take isl_map *map) |
6422 | { |
6423 | int i; |
6424 | |
6425 | if (!map) |
6426 | return NULL((void*)0); |
6427 | |
6428 | if (--map->ref > 0) |
6429 | return NULL((void*)0); |
6430 | |
6431 | clear_caches(map); |
6432 | isl_ctx_deref(map->ctx); |
6433 | for (i = 0; i < map->n; ++i) |
6434 | isl_basic_map_free(map->p[i]); |
6435 | isl_space_free(map->dim); |
6436 | free(map); |
6437 | |
6438 | return NULL((void*)0); |
6439 | } |
6440 | |
6441 | static __isl_give isl_basic_map *isl_basic_map_fix_pos_si( |
6442 | __isl_take isl_basic_map *bmap, unsigned pos, int value) |
6443 | { |
6444 | int j; |
6445 | isl_size total; |
6446 |