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remove_all_equalities: also remove parameter equalities after main compression
[barvinok.git] / iscc.c
blob751330ae13dc86f851b75fb9c3c51be5cb5c7de6
1 #include <assert.h>
2 #include <ctype.h>
3 #include <stdio.h>
4 #include <string.h>
5 #include <unistd.h>
6 #include <isl/ctx.h>
7 #include <isl/val.h>
8 #include <isl/space.h>
9 #include <isl/aff.h>
10 #include <isl/obj.h>
11 #include <isl/stream.h>
12 #include <isl/set.h>
13 #include <isl/map.h>
14 #include <isl/union_set.h>
15 #include <isl/union_map.h>
16 #include <isl/vertices.h>
17 #include <isl/flow.h>
18 #include <isl/schedule.h>
19 #include <isl/ast_build.h>
20 #include <isl/printer.h>
21 #include <isl_obj_list.h>
22 #include <isl_obj_str.h>
23 #include <barvinok/isl.h>
24 #include <barvinok/options.h>
25 #include "lattice_width.h"
26
27 #include "config.h"
28
29 #ifdef HAVE_SIGACTION
30 #include <signal.h>
31
32 static isl_ctx *main_ctx;
33
34 static void handler(int signum)
35 {
36 if (isl_ctx_aborted(main_ctx))
37 exit(EXIT_FAILURE);
38 isl_ctx_abort(main_ctx);
39 }
40
41 static struct sigaction sa_old;
42
43 static void install_signal_handler(isl_ctx *ctx)
44 {
45 struct sigaction sa;
46
47 main_ctx = ctx;
48
49 memset(&sa, 0, sizeof(struct sigaction));
50 sa.sa_handler = &handler;
51 sa.sa_flags = SA_RESTART;
52 sigaction(SIGINT, &sa, &sa_old);
53 }
54
55 static void remove_signal_handler(isl_ctx *ctx)
56 {
57 sigaction(SIGINT, &sa_old, NULL);
58 }
59
60 #else
61
62 static void install_signal_handler(isl_ctx *ctx)
63 {
64 }
65
66 static void remove_signal_handler(isl_ctx *ctx)
67 {
68 }
69
70 #endif
71
72 #ifdef HAVE_PET
73 #include <pet.h>
74 #else
75 struct pet_options;
76 int pet_options_set_autodetect(isl_ctx *ctx, int val)
77 {
78 return -1;
79 }
80 int pet_options_set_encapsulate_dynamic_control(isl_ctx *ctx, int val)
81 {
82 return -1;
83 }
84 #endif
85
86 static int iscc_bool_false = 0;
87 static int iscc_bool_true = 1;
88 static int iscc_bool_error = -1;
89
90 enum iscc_op { ISCC_READ, ISCC_WRITE, ISCC_SOURCE, ISCC_VERTICES,
91 ISCC_LAST, ISCC_ANY, ISCC_BEFORE, ISCC_UNDER,
92 ISCC_SCHEDULE,
93 ISCC_MINIMIZING, ISCC_RESPECTING,
94 ISCC_CODEGEN, ISCC_USING,
95 ISCC_TYPEOF, ISCC_PRINT, ISCC_ASSERT,
96 ISCC_N_OP };
97 static const char *op_name[ISCC_N_OP] = {
98 [ISCC_ASSERT] = "assert",
99 [ISCC_READ] = "read",
100 [ISCC_WRITE] = "write",
101 [ISCC_PRINT] = "print",
102 [ISCC_SOURCE] = "source",
103 [ISCC_VERTICES] = "vertices",
104 [ISCC_LAST] = "last",
105 [ISCC_ANY] = "any",
106 [ISCC_BEFORE] = "before",
107 [ISCC_UNDER] = "under",
108 [ISCC_SCHEDULE] = "schedule",
109 [ISCC_MINIMIZING] = "minimizing",
110 [ISCC_RESPECTING] = "respecting",
111 [ISCC_CODEGEN] = "codegen",
112 [ISCC_USING] = "using",
113 [ISCC_TYPEOF] = "typeof"
114 };
115 static enum isl_token_type iscc_op[ISCC_N_OP];
116
117 struct isl_arg_choice iscc_format[] = {
118 {"isl", ISL_FORMAT_ISL},
119 {"omega", ISL_FORMAT_OMEGA},
120 {"polylib", ISL_FORMAT_POLYLIB},
121 {"ext-polylib", ISL_FORMAT_EXT_POLYLIB},
122 {"latex", ISL_FORMAT_LATEX},
123 {"C", ISL_FORMAT_C},
124 {0}
125 };
126
127 struct iscc_options {
128 struct barvinok_options *barvinok;
129 struct pet_options *pet;
130 unsigned format;
131 int io;
132 };
133
134 ISL_ARGS_START(struct iscc_options, iscc_options_args)
135 ISL_ARG_CHILD(struct iscc_options, barvinok, "barvinok", &barvinok_options_args,
136 "barvinok options")
137 #ifdef HAVE_PET
138 ISL_ARG_CHILD(struct iscc_options, pet, "pet", &pet_options_args, "pet options")
139 #endif
140 ISL_ARG_CHOICE(struct iscc_options, format, 0, "format", \
141 iscc_format, ISL_FORMAT_ISL, "output format")
142 ISL_ARG_BOOL(struct iscc_options, io, 0, "io", 1,
143 "allow read and write operations")
144 ISL_ARGS_END
145
146 ISL_ARG_DEF(iscc_options, struct iscc_options, iscc_options_args)
147 ISL_ARG_CTX_DEF(iscc_options, struct iscc_options, iscc_options_args)
148
149 static void *isl_obj_bool_copy(void *v)
150 {
151 return v;
152 }
153
154 static void isl_obj_bool_free(void *v)
155 {
156 }
157
158 static __isl_give isl_printer *isl_obj_bool_print(__isl_take isl_printer *p,
159 void *v)
160 {
161 if (v == &iscc_bool_true)
162 return isl_printer_print_str(p, "True");
163 else if (v == &iscc_bool_false)
164 return isl_printer_print_str(p, "False");
165 else
166 return isl_printer_print_str(p, "Error");
167 }
168
169 static void *isl_obj_bool_add(void *v1, void *v2)
170 {
171 return v1;
172 }
173
174 struct isl_obj_vtable isl_obj_bool_vtable = {
175 isl_obj_bool_copy,
176 isl_obj_bool_add,
177 isl_obj_bool_print,
178 isl_obj_bool_free
179 };
180 #define isl_obj_bool (&isl_obj_bool_vtable)
181
182 int *iscc_bool_from_int(int res)
183 {
184 return res < 0 ? &iscc_bool_error :
185 res ? &iscc_bool_true : &iscc_bool_false;
186 }
187
188 /* Conjunction of "b1" and "b2".
189 * The result is returned as an integer because it is post-processed by
190 * iscc_bool_from_int.
191 */
192 static int isl_bool_and(isl_bool *b1, __isl_take isl_bool *b2)
193 {
194 if (b1 == &iscc_bool_error || b2 == &iscc_bool_error)
195 return -1;
196 return b1 == &iscc_bool_true && b2 == &iscc_bool_true;
197 }
198
199 /* Disjunction of "b1" and "b2".
200 * The result is returned as an integer because it is post-processed by
201 * iscc_bool_from_int.
202 */
203 static int isl_bool_or(isl_bool *b1, __isl_take isl_bool *b2)
204 {
205 if (b1 == &iscc_bool_error || b2 == &iscc_bool_error)
206 return -1;
207 return b1 == &iscc_bool_true || b2 == &iscc_bool_true;
208 }
209
210 static int isl_union_map_is_superset(__isl_take isl_union_map *map1,
211 __isl_take isl_union_map *map2)
212 {
213 return isl_union_map_is_subset(map2, map1);
214 }
215 static int isl_union_set_is_superset(__isl_take isl_union_set *set1,
216 __isl_take isl_union_set *set2)
217 {
218 return isl_union_set_is_subset(set2, set1);
219 }
220
221 static int isl_union_map_is_strict_superset(__isl_take isl_union_map *map1,
222 __isl_take isl_union_map *map2)
223 {
224 return isl_union_map_is_strict_subset(map2, map1);
225 }
226 static int isl_union_set_is_strict_superset(__isl_take isl_union_set *set1,
227 __isl_take isl_union_set *set2)
228 {
229 return isl_union_set_is_strict_subset(set2, set1);
230 }
231
232 extern struct isl_obj_vtable isl_obj_list_vtable;
233 #define isl_obj_list (&isl_obj_list_vtable)
234
235 typedef void *(*isc_bin_op_fn)(void *lhs, void *rhs);
236 typedef int (*isc_bin_test_fn)(void *lhs, void *rhs);
237 struct isc_bin_op {
238 enum isl_token_type op;
239 isl_obj_type lhs;
240 isl_obj_type rhs;
241 isl_obj_type res;
242 union {
243 isc_bin_op_fn fn;
244 isc_bin_test_fn test;
245 } o;
246 };
247 struct isc_named_bin_op {
248 char *name;
249 struct isc_bin_op op;
250 };
251 /* Compound binary operator.
252 * "full" is only used to generate a unique token number for op.op
253 * in register_named_ops.
254 * "op1" is the first part of the compound operator.
255 * "op2" is the second part of the compound operator.
256 */
257 struct iscc_compound_bin_op {
258 char *full;
259 enum isl_token_type op1;
260 enum isl_token_type op2;
261 struct isc_bin_op op;
262 };
263
264 struct iscc_at {
265 isl_union_pw_qpolynomial *upwqp;
266 isl_union_pw_qpolynomial *res;
267 };
268
269 static isl_stat eval_at(__isl_take isl_point *pnt, void *user)
270 {
271 struct iscc_at *at = (struct iscc_at *) user;
272 isl_val *v;
273 isl_qpolynomial *qp;
274 isl_set *set;
275
276 set = isl_set_from_point(isl_point_copy(pnt));
277 v = isl_union_pw_qpolynomial_eval(
278 isl_union_pw_qpolynomial_copy(at->upwqp), pnt);
279 qp = isl_qpolynomial_val_on_domain(isl_set_get_space(set), v);
280
281 at->res = isl_union_pw_qpolynomial_add(at->res,
282 isl_union_pw_qpolynomial_from_pw_qpolynomial(
283 isl_pw_qpolynomial_alloc(set, qp)));
284
285 return isl_stat_ok;
286 }
287
288 __isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_at(
289 __isl_take isl_union_pw_qpolynomial *upwqp,
290 __isl_take isl_union_set *uset)
291 {
292 struct iscc_at at;
293
294 at.upwqp = upwqp;
295 at.res = isl_union_pw_qpolynomial_zero(isl_union_set_get_space(uset));
296
297 isl_union_set_foreach_point(uset, eval_at, &at);
298
299 isl_union_pw_qpolynomial_free(upwqp);
300 isl_union_set_free(uset);
301
302 return at.res;
303 }
304
305 struct iscc_fold_at {
306 isl_union_pw_qpolynomial_fold *upwf;
307 isl_union_pw_qpolynomial *res;
308 };
309
310 static isl_stat eval_fold_at(__isl_take isl_point *pnt, void *user)
311 {
312 struct iscc_fold_at *at = (struct iscc_fold_at *) user;
313 isl_val *v;
314 isl_qpolynomial *qp;
315 isl_set *set;
316
317 set = isl_set_from_point(isl_point_copy(pnt));
318 v = isl_union_pw_qpolynomial_fold_eval(
319 isl_union_pw_qpolynomial_fold_copy(at->upwf), pnt);
320 qp = isl_qpolynomial_val_on_domain(isl_set_get_space(set), v);
321
322 at->res = isl_union_pw_qpolynomial_add(at->res,
323 isl_union_pw_qpolynomial_from_pw_qpolynomial(
324 isl_pw_qpolynomial_alloc(set, qp)));
325
326 return isl_stat_ok;
327 }
328
329 __isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_fold_at(
330 __isl_take isl_union_pw_qpolynomial_fold *upwf,
331 __isl_take isl_union_set *uset)
332 {
333 struct iscc_fold_at at;
334
335 at.upwf = upwf;
336 at.res = isl_union_pw_qpolynomial_zero(isl_union_set_get_space(uset));
337
338 isl_union_set_foreach_point(uset, eval_fold_at, &at);
339
340 isl_union_pw_qpolynomial_fold_free(upwf);
341 isl_union_set_free(uset);
342
343 return at.res;
344 }
345
346 static __isl_give isl_union_pw_qpolynomial_fold *union_pw_qpolynomial_add_union_pw_qpolynomial_fold(
347 __isl_take isl_union_pw_qpolynomial *upwqp,
348 __isl_take isl_union_pw_qpolynomial_fold *upwf)
349 {
350 return isl_union_pw_qpolynomial_fold_add_union_pw_qpolynomial(upwf,
351 upwqp);
352 }
353
354 static __isl_give struct isl_list *union_map_apply_union_pw_qpolynomial_fold(
355 __isl_take isl_union_map *umap,
356 __isl_take isl_union_pw_qpolynomial_fold *upwf)
357 {
358 isl_ctx *ctx;
359 struct isl_list *list;
360 int tight;
361
362 ctx = isl_union_map_get_ctx(umap);
363 list = isl_list_alloc(ctx, 2);
364 if (!list)
365 goto error2;
366
367 list->obj[0].type = isl_obj_union_pw_qpolynomial_fold;
368 list->obj[0].v = isl_union_map_apply_union_pw_qpolynomial_fold(umap,
369 upwf, &tight);
370 list->obj[1].type = isl_obj_bool;
371 list->obj[1].v = tight ? &iscc_bool_true : &iscc_bool_false;
372 if (tight < 0 || !list->obj[0].v)
373 goto error;
374
375 return list;
376 error2:
377 isl_union_map_free(umap);
378 isl_union_pw_qpolynomial_fold_free(upwf);
379 error:
380 isl_list_free(list);
381 return NULL;
382 }
383
384 static __isl_give struct isl_list *union_set_apply_union_pw_qpolynomial_fold(
385 __isl_take isl_union_set *uset,
386 __isl_take isl_union_pw_qpolynomial_fold *upwf)
387 {
388 isl_ctx *ctx;
389 struct isl_list *list;
390 int tight;
391
392 ctx = isl_union_set_get_ctx(uset);
393 list = isl_list_alloc(ctx, 2);
394 if (!list)
395 goto error2;
396
397 list->obj[0].type = isl_obj_union_pw_qpolynomial_fold;
398 list->obj[0].v = isl_union_set_apply_union_pw_qpolynomial_fold(uset,
399 upwf, &tight);
400 list->obj[1].type = isl_obj_bool;
401 list->obj[1].v = tight ? &iscc_bool_true : &iscc_bool_false;
402 if (tight < 0 || !list->obj[0].v)
403 goto error;
404
405 return list;
406 error2:
407 isl_union_set_free(uset);
408 isl_union_pw_qpolynomial_fold_free(upwf);
409 error:
410 isl_list_free(list);
411 return NULL;
412 }
413
414 static __isl_give isl_union_pw_qpolynomial *isl_val_mul_union_pw_qpolynomial(
415 __isl_take isl_val *v, __isl_take isl_union_pw_qpolynomial *upwqp)
416 {
417 return isl_union_pw_qpolynomial_scale_val(upwqp, v);
418 }
419
420 static __isl_give isl_union_pw_qpolynomial_fold *
421 int_val_mul_union_pw_qpolynomial_fold(__isl_take isl_val *v,
422 __isl_take isl_union_pw_qpolynomial_fold *upwf)
423 {
424 return isl_union_pw_qpolynomial_fold_scale_val(upwf, v);
425 }
426
427 /* Are the two strings "str1" and "str2" equal to each other?
428 */
429 static int str_eq(__isl_keep isl_str *str1, __isl_keep isl_str *str2)
430 {
431 if (!str1 || !str2)
432 return -1;
433
434 return !strcmp(str1->s, str2->s);
435 }
436
437 struct isc_bin_op bin_ops[] = {
438 { '+', isl_obj_bool, isl_obj_bool, isl_obj_bool,
439 (isc_bin_op_fn) &isl_bool_or },
440 { '*', isl_obj_bool, isl_obj_bool, isl_obj_bool,
441 (isc_bin_op_fn) &isl_bool_and },
442 { '+', isl_obj_val, isl_obj_val, isl_obj_val,
443 (isc_bin_op_fn) &isl_val_add },
444 { '-', isl_obj_val, isl_obj_val, isl_obj_val,
445 (isc_bin_op_fn) &isl_val_sub },
446 { '*', isl_obj_val, isl_obj_val, isl_obj_val,
447 (isc_bin_op_fn) &isl_val_mul },
448 { '+', isl_obj_pw_multi_aff, isl_obj_pw_multi_aff,
449 isl_obj_pw_multi_aff,
450 (isc_bin_op_fn) &isl_pw_multi_aff_add },
451 { '+', isl_obj_union_set, isl_obj_union_set,
452 isl_obj_union_set,
453 (isc_bin_op_fn) &isl_union_set_union },
454 { '+', isl_obj_union_map, isl_obj_union_map,
455 isl_obj_union_map,
456 (isc_bin_op_fn) &isl_union_map_union },
457 { '-', isl_obj_union_set, isl_obj_union_set,
458 isl_obj_union_set,
459 (isc_bin_op_fn) &isl_union_set_subtract },
460 { '-', isl_obj_union_map, isl_obj_union_map,
461 isl_obj_union_map,
462 (isc_bin_op_fn) &isl_union_map_subtract },
463 { '-', isl_obj_union_map, isl_obj_union_set,
464 isl_obj_union_map,
465 (isc_bin_op_fn) &isl_union_map_subtract_domain },
466 { '*', isl_obj_union_set, isl_obj_union_set,
467 isl_obj_union_set,
468 (isc_bin_op_fn) &isl_union_set_intersect },
469 { '*', isl_obj_union_map, isl_obj_union_map,
470 isl_obj_union_map,
471 (isc_bin_op_fn) &isl_union_map_intersect },
472 { '*', isl_obj_union_map, isl_obj_union_set,
473 isl_obj_union_map,
474 (isc_bin_op_fn) &isl_union_map_intersect_domain },
475 { '.', isl_obj_union_map, isl_obj_union_map,
476 isl_obj_union_map,
477 (isc_bin_op_fn) &isl_union_map_apply_range },
478 { '.', isl_obj_union_map, isl_obj_union_pw_qpolynomial,
479 isl_obj_union_pw_qpolynomial,
480 (isc_bin_op_fn) &isl_union_map_apply_union_pw_qpolynomial },
481 { '.', isl_obj_union_map, isl_obj_union_pw_qpolynomial_fold,
482 isl_obj_list,
483 (isc_bin_op_fn) &union_map_apply_union_pw_qpolynomial_fold },
484 { ISL_TOKEN_TO, isl_obj_union_set, isl_obj_union_set,
485 isl_obj_union_map,
486 (isc_bin_op_fn) &isl_union_map_from_domain_and_range },
487 { '=', isl_obj_union_set, isl_obj_union_set, isl_obj_bool,
488 { .test = (isc_bin_test_fn) &isl_union_set_is_equal } },
489 { '=', isl_obj_union_map, isl_obj_union_map, isl_obj_bool,
490 { .test = (isc_bin_test_fn) &isl_union_map_is_equal } },
491 { ISL_TOKEN_LE, isl_obj_union_set, isl_obj_union_set,
492 isl_obj_bool,
493 { .test = (isc_bin_test_fn) &isl_union_set_is_subset } },
494 { ISL_TOKEN_LE, isl_obj_union_map, isl_obj_union_map,
495 isl_obj_bool,
496 { .test = (isc_bin_test_fn) &isl_union_map_is_subset } },
497 { ISL_TOKEN_LT, isl_obj_union_set, isl_obj_union_set,
498 isl_obj_bool,
499 { .test = (isc_bin_test_fn) &isl_union_set_is_strict_subset } },
500 { ISL_TOKEN_LT, isl_obj_union_map, isl_obj_union_map,
501 isl_obj_bool,
502 { .test = (isc_bin_test_fn) &isl_union_map_is_strict_subset } },
503 { ISL_TOKEN_GE, isl_obj_union_set, isl_obj_union_set,
504 isl_obj_bool,
505 { .test = (isc_bin_test_fn) &isl_union_set_is_superset } },
506 { ISL_TOKEN_GE, isl_obj_union_map, isl_obj_union_map,
507 isl_obj_bool,
508 { .test = (isc_bin_test_fn) &isl_union_map_is_superset } },
509 { ISL_TOKEN_GT, isl_obj_union_set, isl_obj_union_set,
510 isl_obj_bool,
511 { .test =
512 (isc_bin_test_fn) &isl_union_set_is_strict_superset } },
513 { ISL_TOKEN_GT, isl_obj_union_map, isl_obj_union_map,
514 isl_obj_bool,
515 { .test =
516 (isc_bin_test_fn) &isl_union_map_is_strict_superset } },
517 { ISL_TOKEN_LEX_LE, isl_obj_union_set, isl_obj_union_set,
518 isl_obj_union_map,
519 (isc_bin_op_fn) &isl_union_set_lex_le_union_set },
520 { ISL_TOKEN_LEX_LT, isl_obj_union_set, isl_obj_union_set,
521 isl_obj_union_map,
522 (isc_bin_op_fn) &isl_union_set_lex_lt_union_set },
523 { ISL_TOKEN_LEX_GE, isl_obj_union_set, isl_obj_union_set,
524 isl_obj_union_map,
525 (isc_bin_op_fn) &isl_union_set_lex_ge_union_set },
526 { ISL_TOKEN_LEX_GT, isl_obj_union_set, isl_obj_union_set,
527 isl_obj_union_map,
528 (isc_bin_op_fn) &isl_union_set_lex_gt_union_set },
529 { ISL_TOKEN_LEX_LE, isl_obj_union_map, isl_obj_union_map,
530 isl_obj_union_map,
531 (isc_bin_op_fn) &isl_union_map_lex_le_union_map },
532 { ISL_TOKEN_LEX_LT, isl_obj_union_map, isl_obj_union_map,
533 isl_obj_union_map,
534 (isc_bin_op_fn) &isl_union_map_lex_lt_union_map },
535 { ISL_TOKEN_LEX_GE, isl_obj_union_map, isl_obj_union_map,
536 isl_obj_union_map,
537 (isc_bin_op_fn) &isl_union_map_lex_ge_union_map },
538 { ISL_TOKEN_LEX_GT, isl_obj_union_map, isl_obj_union_map,
539 isl_obj_union_map,
540 (isc_bin_op_fn) &isl_union_map_lex_gt_union_map },
541 { '.', isl_obj_union_pw_qpolynomial_fold,
542 isl_obj_union_pw_qpolynomial_fold,
543 isl_obj_union_pw_qpolynomial_fold,
544 (isc_bin_op_fn) &isl_union_pw_qpolynomial_fold_fold },
545 { '+', isl_obj_union_pw_qpolynomial, isl_obj_union_pw_qpolynomial,
546 isl_obj_union_pw_qpolynomial,
547 (isc_bin_op_fn) &isl_union_pw_qpolynomial_add },
548 { '+', isl_obj_union_pw_qpolynomial,
549 isl_obj_union_pw_qpolynomial_fold,
550 isl_obj_union_pw_qpolynomial_fold,
551 (isc_bin_op_fn) &union_pw_qpolynomial_add_union_pw_qpolynomial_fold },
552 { '+', isl_obj_union_pw_qpolynomial_fold,
553 isl_obj_union_pw_qpolynomial,
554 isl_obj_union_pw_qpolynomial_fold,
555 (isc_bin_op_fn) &isl_union_pw_qpolynomial_fold_add_union_pw_qpolynomial },
556 { '-', isl_obj_union_pw_qpolynomial, isl_obj_union_pw_qpolynomial,
557 isl_obj_union_pw_qpolynomial,
558 (isc_bin_op_fn) &isl_union_pw_qpolynomial_sub },
559 { '*', isl_obj_val, isl_obj_union_pw_qpolynomial,
560 isl_obj_union_pw_qpolynomial,
561 (isc_bin_op_fn) &isl_val_mul_union_pw_qpolynomial },
562 { '*', isl_obj_union_pw_qpolynomial, isl_obj_val,
563 isl_obj_union_pw_qpolynomial,
564 (isc_bin_op_fn) &isl_union_pw_qpolynomial_scale_val },
565 { '*', isl_obj_val, isl_obj_union_pw_qpolynomial_fold,
566 isl_obj_union_pw_qpolynomial_fold,
567 (isc_bin_op_fn) &int_val_mul_union_pw_qpolynomial_fold },
568 { '*', isl_obj_union_pw_qpolynomial_fold, isl_obj_val,
569 isl_obj_union_pw_qpolynomial_fold,
570 (isc_bin_op_fn) &isl_union_pw_qpolynomial_fold_scale_val },
571 { '*', isl_obj_union_pw_qpolynomial, isl_obj_union_pw_qpolynomial,
572 isl_obj_union_pw_qpolynomial,
573 (isc_bin_op_fn) &isl_union_pw_qpolynomial_mul },
574 { '*', isl_obj_union_pw_qpolynomial, isl_obj_union_set,
575 isl_obj_union_pw_qpolynomial,
576 (isc_bin_op_fn) &isl_union_pw_qpolynomial_intersect_domain },
577 { '*', isl_obj_union_pw_qpolynomial_fold, isl_obj_union_set,
578 isl_obj_union_pw_qpolynomial_fold,
579 (isc_bin_op_fn) &isl_union_pw_qpolynomial_fold_intersect_domain },
580 { '@', isl_obj_union_pw_qpolynomial, isl_obj_union_set,
581 isl_obj_union_pw_qpolynomial,
582 (isc_bin_op_fn) &isl_union_pw_qpolynomial_at },
583 { '@', isl_obj_union_pw_qpolynomial_fold, isl_obj_union_set,
584 isl_obj_union_pw_qpolynomial,
585 (isc_bin_op_fn) &isl_union_pw_qpolynomial_fold_at },
586 { '%', isl_obj_union_set, isl_obj_union_set,
587 isl_obj_union_set,
588 (isc_bin_op_fn) &isl_union_set_gist },
589 { '%', isl_obj_union_map, isl_obj_union_map,
590 isl_obj_union_map,
591 (isc_bin_op_fn) &isl_union_map_gist },
592 { '%', isl_obj_union_map, isl_obj_union_set,
593 isl_obj_union_map,
594 (isc_bin_op_fn) &isl_union_map_gist_domain },
595 { '%', isl_obj_union_pw_qpolynomial, isl_obj_union_set,
596 isl_obj_union_pw_qpolynomial,
597 (isc_bin_op_fn) &isl_union_pw_qpolynomial_gist },
598 { '%', isl_obj_union_pw_qpolynomial_fold, isl_obj_union_set,
599 isl_obj_union_pw_qpolynomial_fold,
600 (isc_bin_op_fn) &isl_union_pw_qpolynomial_fold_gist },
601 { ISL_TOKEN_EQ_EQ, isl_obj_union_pw_qpolynomial,
602 isl_obj_union_pw_qpolynomial, isl_obj_bool,
603 { .test = (isc_bin_test_fn)
604 &isl_union_pw_qpolynomial_plain_is_equal } },
605 { ISL_TOKEN_EQ_EQ, isl_obj_union_pw_qpolynomial_fold,
606 isl_obj_union_pw_qpolynomial_fold, isl_obj_bool,
607 { .test = (isc_bin_test_fn)
608 &isl_union_pw_qpolynomial_fold_plain_is_equal } },
609 { '+', isl_obj_str, isl_obj_str, isl_obj_str,
610 (isc_bin_op_fn) &isl_str_concat },
611 { '=', isl_obj_str, isl_obj_str, isl_obj_bool,
612 { .test = (isc_bin_test_fn) &str_eq } },
613 0
614 };
615
616 struct iscc_compound_bin_op compound_bin_ops[] = {
617 { "->*", ISL_TOKEN_TO, '*',
618 { -1, isl_obj_union_map, isl_obj_union_set,
619 isl_obj_union_map,
620 (isc_bin_op_fn) &isl_union_map_intersect_range } },
621 { "->-", ISL_TOKEN_TO, '-',
622 { -1, isl_obj_union_map, isl_obj_union_set,
623 isl_obj_union_map,
624 (isc_bin_op_fn) &isl_union_map_subtract_range } },
625 0
626 };
627
628 static __isl_give isl_union_map *map_after_map(__isl_take isl_union_map *umap1,
629 __isl_take isl_union_map *umap2)
630 {
631 return isl_union_map_apply_range(umap2, umap1);
632 }
633
634 static __isl_give isl_union_pw_qpolynomial *qpolynomial_after_map(
635 __isl_take isl_union_pw_qpolynomial *upwqp,
636 __isl_take isl_union_map *umap)
637 {
638 return isl_union_map_apply_union_pw_qpolynomial(umap, upwqp);
639 }
640
641 static __isl_give struct isl_list *qpolynomial_fold_after_map(
642 __isl_take isl_union_pw_qpolynomial_fold *upwf,
643 __isl_take isl_union_map *umap)
644 {
645 return union_map_apply_union_pw_qpolynomial_fold(umap, upwf);
646 }
647
648 struct isc_named_bin_op named_bin_ops[] = {
649 { "after", { -1, isl_obj_union_map, isl_obj_union_map,
650 isl_obj_union_map,
651 (isc_bin_op_fn) &map_after_map } },
652 { "after", { -1, isl_obj_union_pw_qpolynomial,
653 isl_obj_union_map, isl_obj_union_pw_qpolynomial,
654 (isc_bin_op_fn) &qpolynomial_after_map } },
655 { "after", { -1, isl_obj_union_pw_qpolynomial_fold,
656 isl_obj_union_map, isl_obj_list,
657 (isc_bin_op_fn) &qpolynomial_fold_after_map } },
658 { "before", { -1, isl_obj_union_map, isl_obj_union_map,
659 isl_obj_union_map,
660 (isc_bin_op_fn) &isl_union_map_apply_range } },
661 { "before", { -1, isl_obj_union_map,
662 isl_obj_union_pw_qpolynomial, isl_obj_union_pw_qpolynomial,
663 (isc_bin_op_fn) &isl_union_map_apply_union_pw_qpolynomial } },
664 { "before", { -1, isl_obj_union_map,
665 isl_obj_union_pw_qpolynomial_fold, isl_obj_list,
666 (isc_bin_op_fn) &union_map_apply_union_pw_qpolynomial_fold } },
667 { "cross", { -1, isl_obj_union_set, isl_obj_union_set,
668 isl_obj_union_set,
669 (isc_bin_op_fn) &isl_union_set_product } },
670 { "cross", { -1, isl_obj_union_map, isl_obj_union_map,
671 isl_obj_union_map,
672 (isc_bin_op_fn) &isl_union_map_product } },
673 { "cross_range", { -1, isl_obj_union_map,
674 isl_obj_union_map, isl_obj_union_map,
675 (isc_bin_op_fn) &isl_union_map_range_product } },
676 NULL
677 };
678
679 __isl_give isl_set *union_set_sample(__isl_take isl_union_set *uset)
680 {
681 return isl_set_from_basic_set(isl_union_set_sample(uset));
682 }
683
684 __isl_give isl_map *union_map_sample(__isl_take isl_union_map *umap)
685 {
686 return isl_map_from_basic_map(isl_union_map_sample(umap));
687 }
688
689 static __isl_give struct isl_list *union_map_power(
690 __isl_take isl_union_map *umap)
691 {
692 isl_ctx *ctx;
693 struct isl_list *list;
694 int exact;
695
696 ctx = isl_union_map_get_ctx(umap);
697 list = isl_list_alloc(ctx, 2);
698 if (!list)
699 goto error2;
700
701 list->obj[0].type = isl_obj_union_map;
702 list->obj[0].v = isl_union_map_power(umap, &exact);
703 list->obj[1].type = isl_obj_bool;
704 list->obj[1].v = exact ? &iscc_bool_true : &iscc_bool_false;
705 if (exact < 0 || !list->obj[0].v)
706 goto error;
707
708 return list;
709 error2:
710 isl_union_map_free(umap);
711 error:
712 isl_list_free(list);
713 return NULL;
714 }
715
716 /* Compute a lower or upper bound on "upwqp" depending on "type" and
717 * return a list containing two elements, the bound and a boolean
718 * indicating whether the result is tight.
719 */
720 static __isl_give struct isl_list *union_pw_qpolynomial_bound(
721 __isl_take isl_union_pw_qpolynomial *upwqp, enum isl_fold type)
722 {
723 isl_ctx *ctx;
724 struct isl_list *list;
725 int tight;
726
727 ctx = isl_union_pw_qpolynomial_get_ctx(upwqp);
728 list = isl_list_alloc(ctx, 2);
729 if (!list)
730 goto error2;
731
732 list->obj[0].type = isl_obj_union_pw_qpolynomial_fold;
733 list->obj[0].v = isl_union_pw_qpolynomial_bound(upwqp, type, &tight);
734 list->obj[1].type = isl_obj_bool;
735 list->obj[1].v = tight ? &iscc_bool_true : &iscc_bool_false;
736 if (tight < 0 || !list->obj[0].v)
737 goto error;
738
739 return list;
740 error2:
741 isl_union_pw_qpolynomial_free(upwqp);
742 error:
743 isl_list_free(list);
744 return NULL;
745 }
746
747 /* Compute a lower bound on "upwqp" and return a list containing
748 * two elements, the bound and a booleanindicating whether
749 * the result is tight.
750 */
751 static __isl_give struct isl_list *union_pw_qpolynomial_lower_bound(
752 __isl_take isl_union_pw_qpolynomial *upwqp)
753 {
754 return union_pw_qpolynomial_bound(upwqp, isl_fold_min);
755 }
756
757 /* Compute a upper bound on "upwqp" and return a list containing
758 * two elements, the bound and a booleanindicating whether
759 * the result is tight.
760 */
761 static __isl_give struct isl_list *union_pw_qpolynomial_upper_bound(
762 __isl_take isl_union_pw_qpolynomial *upwqp)
763 {
764 return union_pw_qpolynomial_bound(upwqp, isl_fold_max);
765 }
766
767 #ifdef HAVE_PET
768 /* Collect all statement instances, except those of kill statements.
769 */
770 static __isl_give isl_union_set *collect_non_kill_instances(
771 struct pet_scop *scop)
772 {
773 int i;
774 isl_set *domain_i;
775 isl_union_set *domain;
776
777 if (!scop)
778 return NULL;
779
780 domain = isl_union_set_empty(isl_set_get_space(scop->context));
781
782 for (i = 0; i < scop->n_stmt; ++i) {
783 struct pet_stmt *stmt = scop->stmts[i];
784
785 if (pet_stmt_is_kill(stmt))
786 continue;
787 domain_i = isl_set_copy(stmt->domain);
788 if (scop->stmts[i]->n_arg > 0)
789 domain_i = isl_map_domain(isl_set_unwrap(domain_i));
790 domain = isl_union_set_add_set(domain, domain_i);
791 }
792
793 return domain;
794 }
795
796 static __isl_give isl_list *parse(__isl_take isl_str *str)
797 {
798 isl_ctx *ctx;
799 struct isl_list *list;
800 struct pet_scop *scop;
801 isl_schedule *sched;
802 isl_union_map *may_reads, *must_writes, *may_writes;
803 isl_union_set *domain;
804 struct iscc_options *options;
805
806 if (!str)
807 return NULL;
808 ctx = str->ctx;
809
810 options = isl_ctx_peek_iscc_options(ctx);
811 if (!options || !options->io) {
812 isl_str_free(str);
813 isl_die(ctx, isl_error_invalid,
814 "parse_file operation not allowed", return NULL);
815 }
816
817 list = isl_list_alloc(ctx, 5);
818 if (!list)
819 goto error;
820
821 scop = pet_scop_extract_from_C_source(ctx, str->s, NULL);
822 domain = collect_non_kill_instances(scop);
823 sched = pet_scop_get_schedule(scop);
824 sched = isl_schedule_intersect_domain(sched,
825 isl_union_set_copy(domain));
826 may_reads = pet_scop_get_may_reads(scop);
827 may_writes = pet_scop_get_may_writes(scop);
828 must_writes = pet_scop_get_must_writes(scop);
829 pet_scop_free(scop);
830
831 list->obj[0].type = isl_obj_union_set;
832 list->obj[0].v = domain;
833 list->obj[1].type = isl_obj_union_map;
834 list->obj[1].v = must_writes;
835 list->obj[2].type = isl_obj_union_map;
836 list->obj[2].v = may_writes;
837 list->obj[3].type = isl_obj_union_map;
838 list->obj[3].v = may_reads;
839 list->obj[4].type = isl_obj_schedule;
840 list->obj[4].v = sched;
841
842 if (!list->obj[0].v || !list->obj[1].v ||
843 !list->obj[2].v || !list->obj[3].v || !list->obj[4].v)
844 goto error;
845
846 isl_str_free(str);
847 return list;
848 error:
849 isl_list_free(list);
850 isl_str_free(str);
851 return NULL;
852 }
853 #endif
854
855 static isl_stat add_point(__isl_take isl_point *pnt, void *user)
856 {
857 isl_union_set **scan = (isl_union_set **) user;
858
859 *scan = isl_union_set_add_set(*scan, isl_set_from_point(pnt));
860
861 return isl_stat_ok;
862 }
863
864 static __isl_give isl_union_set *union_set_scan(__isl_take isl_union_set *uset)
865 {
866 isl_union_set *scan;
867
868 scan = isl_union_set_empty(isl_union_set_get_space(uset));
869
870 if (isl_union_set_foreach_point(uset, add_point, &scan) < 0) {
871 isl_union_set_free(scan);
872 return uset;
873 }
874
875 isl_union_set_free(uset);
876 return scan;
877 }
878
879 static __isl_give isl_union_map *union_map_scan(__isl_take isl_union_map *umap)
880 {
881 return isl_union_set_unwrap(union_set_scan(isl_union_map_wrap(umap)));
882 }
883
884 static __isl_give isl_union_pw_qpolynomial *union_pw_qpolynomial_poly(
885 __isl_take isl_union_pw_qpolynomial *upwqp)
886 {
887 return isl_union_pw_qpolynomial_to_polynomial(upwqp, 0);
888 }
889
890 static __isl_give isl_union_pw_qpolynomial *union_pw_qpolynomial_lpoly(
891 __isl_take isl_union_pw_qpolynomial *upwqp)
892 {
893 return isl_union_pw_qpolynomial_to_polynomial(upwqp, -1);
894 }
895
896 static __isl_give isl_union_pw_qpolynomial *union_pw_qpolynomial_upoly(
897 __isl_take isl_union_pw_qpolynomial *upwqp)
898 {
899 return isl_union_pw_qpolynomial_to_polynomial(upwqp, 1);
900 }
901
902 /* Return the domain of "schedule".
903 */
904 static __isl_give isl_union_set *schedule_domain(
905 __isl_take isl_schedule *schedule)
906 {
907 isl_union_set *domain;
908
909 domain = isl_schedule_get_domain(schedule);
910 isl_schedule_free(schedule);
911
912 return domain;
913 }
914
915 /* Convert "schedule" to a union map representation.
916 */
917 static __isl_give isl_union_map *schedule_map(__isl_take isl_schedule *schedule)
918 {
919 isl_union_map *map;
920
921 map = isl_schedule_get_map(schedule);
922 isl_schedule_free(schedule);
923
924 return map;
925 }
926
927 typedef void *(*isc_un_op_fn)(void *arg);
928 struct isc_un_op {
929 enum isl_token_type op;
930 isl_obj_type arg;
931 isl_obj_type res;
932 isc_un_op_fn fn;
933 };
934 struct isc_named_un_op {
935 char *name;
936 struct isc_un_op op;
937 };
938 struct isc_named_un_op named_un_ops[] = {
939 {"aff", { -1, isl_obj_union_map, isl_obj_union_map,
940 (isc_un_op_fn) &isl_union_map_affine_hull } },
941 {"aff", { -1, isl_obj_union_set, isl_obj_union_set,
942 (isc_un_op_fn) &isl_union_set_affine_hull } },
943 {"card", { -1, isl_obj_union_set,
944 isl_obj_union_pw_qpolynomial,
945 (isc_un_op_fn) &isl_union_set_card } },
946 {"card", { -1, isl_obj_union_map,
947 isl_obj_union_pw_qpolynomial,
948 (isc_un_op_fn) &isl_union_map_card } },
949 {"coalesce", { -1, isl_obj_union_set, isl_obj_union_set,
950 (isc_un_op_fn) &isl_union_set_coalesce } },
951 {"coalesce", { -1, isl_obj_union_map, isl_obj_union_map,
952 (isc_un_op_fn) &isl_union_map_coalesce } },
953 {"coalesce", { -1, isl_obj_union_pw_qpolynomial,
954 isl_obj_union_pw_qpolynomial,
955 (isc_un_op_fn) &isl_union_pw_qpolynomial_coalesce } },
956 {"coalesce", { -1, isl_obj_union_pw_qpolynomial_fold,
957 isl_obj_union_pw_qpolynomial_fold,
958 (isc_un_op_fn) &isl_union_pw_qpolynomial_fold_coalesce } },
959 {"coefficients", { -1, isl_obj_union_set,
960 isl_obj_union_set,
961 (isc_un_op_fn) &isl_union_set_coefficients } },
962 {"solutions", { -1, isl_obj_union_set, isl_obj_union_set,
963 (isc_un_op_fn) &isl_union_set_solutions } },
964 {"deltas", { -1, isl_obj_union_map, isl_obj_union_set,
965 (isc_un_op_fn) &isl_union_map_deltas } },
966 {"deltas_map", { -1, isl_obj_union_map, isl_obj_union_map,
967 (isc_un_op_fn) &isl_union_map_deltas_map } },
968 {"dom", { -1, isl_obj_schedule, isl_obj_union_set,
969 (isc_un_op_fn) &schedule_domain } },
970 {"dom", { -1, isl_obj_union_map, isl_obj_union_set,
971 (isc_un_op_fn) &isl_union_map_domain } },
972 {"dom", { -1, isl_obj_union_pw_qpolynomial, isl_obj_union_set,
973 (isc_un_op_fn) &isl_union_pw_qpolynomial_domain } },
974 {"dom", { -1, isl_obj_union_pw_qpolynomial_fold,
975 isl_obj_union_set,
976 (isc_un_op_fn) &isl_union_pw_qpolynomial_fold_domain } },
977 {"domain", { -1, isl_obj_schedule, isl_obj_union_set,
978 (isc_un_op_fn) &schedule_domain } },
979 {"domain", { -1, isl_obj_union_map, isl_obj_union_set,
980 (isc_un_op_fn) &isl_union_map_domain } },
981 {"domain", { -1, isl_obj_union_pw_qpolynomial,
982 isl_obj_union_set,
983 (isc_un_op_fn) &isl_union_pw_qpolynomial_domain } },
984 {"domain", { -1, isl_obj_union_pw_qpolynomial_fold,
985 isl_obj_union_set,
986 (isc_un_op_fn) &isl_union_pw_qpolynomial_fold_domain } },
987 {"domain_map", { -1, isl_obj_union_map, isl_obj_union_map,
988 (isc_un_op_fn) &isl_union_map_domain_map } },
989 {"ran", { -1, isl_obj_union_map, isl_obj_union_set,
990 (isc_un_op_fn) &isl_union_map_range } },
991 {"range", { -1, isl_obj_union_map, isl_obj_union_set,
992 (isc_un_op_fn) &isl_union_map_range } },
993 {"range_map", { -1, isl_obj_union_map, isl_obj_union_map,
994 (isc_un_op_fn) &isl_union_map_range_map } },
995 {"identity", { -1, isl_obj_union_set, isl_obj_union_map,
996 (isc_un_op_fn) &isl_union_set_identity } },
997 {"lattice_width", { -1, isl_obj_union_set,
998 isl_obj_union_pw_qpolynomial,
999 (isc_un_op_fn) &isl_union_set_lattice_width } },
1000 {"lb", { -1, isl_obj_union_pw_qpolynomial, isl_obj_list,
1001 (isc_un_op_fn) &union_pw_qpolynomial_lower_bound } },
1002 {"lexmin", { -1, isl_obj_union_map, isl_obj_union_map,
1003 (isc_un_op_fn) &isl_union_map_lexmin } },
1004 {"lexmax", { -1, isl_obj_union_map, isl_obj_union_map,
1005 (isc_un_op_fn) &isl_union_map_lexmax } },
1006 {"lexmin", { -1, isl_obj_union_set, isl_obj_union_set,
1007 (isc_un_op_fn) &isl_union_set_lexmin } },
1008 {"lexmax", { -1, isl_obj_union_set, isl_obj_union_set,
1009 (isc_un_op_fn) &isl_union_set_lexmax } },
1010 {"lift", { -1, isl_obj_union_set, isl_obj_union_set,
1011 (isc_un_op_fn) &isl_union_set_lift } },
1012 {"map", { -1, isl_obj_schedule, isl_obj_union_map,
1013 (isc_un_op_fn) &schedule_map } },
1014 {"params", { -1, isl_obj_union_map, isl_obj_set,
1015 (isc_un_op_fn) &isl_union_map_params } },
1016 {"params", { -1, isl_obj_union_set, isl_obj_set,
1017 (isc_un_op_fn) &isl_union_set_params } },
1018 {"poly", { -1, isl_obj_union_map, isl_obj_union_map,
1019 (isc_un_op_fn) &isl_union_map_polyhedral_hull } },
1020 {"poly", { -1, isl_obj_union_set, isl_obj_union_set,
1021 (isc_un_op_fn) &isl_union_set_polyhedral_hull } },
1022 {"poly", { -1, isl_obj_union_pw_qpolynomial,
1023 isl_obj_union_pw_qpolynomial,
1024 (isc_un_op_fn) &union_pw_qpolynomial_poly } },
1025 {"lpoly", { -1, isl_obj_union_pw_qpolynomial,
1026 isl_obj_union_pw_qpolynomial,
1027 (isc_un_op_fn) &union_pw_qpolynomial_lpoly } },
1028 {"upoly", { -1, isl_obj_union_pw_qpolynomial,
1029 isl_obj_union_pw_qpolynomial,
1030 (isc_un_op_fn) &union_pw_qpolynomial_upoly } },
1031 #ifdef HAVE_PET
1032 {"parse_file", { -1, isl_obj_str, isl_obj_list,
1033 (isc_un_op_fn) &parse } },
1034 #endif
1035 {"pow", { -1, isl_obj_union_map, isl_obj_list,
1036 (isc_un_op_fn) &union_map_power } },
1037 {"sample", { -1, isl_obj_union_set, isl_obj_set,
1038 (isc_un_op_fn) &union_set_sample } },
1039 {"sample", { -1, isl_obj_union_map, isl_obj_map,
1040 (isc_un_op_fn) &union_map_sample } },
1041 {"scan", { -1, isl_obj_union_set, isl_obj_union_set,
1042 (isc_un_op_fn) &union_set_scan } },
1043 {"scan", { -1, isl_obj_union_map, isl_obj_union_map,
1044 (isc_un_op_fn) &union_map_scan } },
1045 {"sum", { -1, isl_obj_union_pw_qpolynomial,
1046 isl_obj_union_pw_qpolynomial,
1047 (isc_un_op_fn) &isl_union_pw_qpolynomial_sum } },
1048 {"ub", { -1, isl_obj_union_pw_qpolynomial, isl_obj_list,
1049 (isc_un_op_fn) &union_pw_qpolynomial_upper_bound } },
1050 {"unwrap", { -1, isl_obj_union_set, isl_obj_union_map,
1051 (isc_un_op_fn) &isl_union_set_unwrap } },
1052 {"wrap", { -1, isl_obj_union_map, isl_obj_union_set,
1053 (isc_un_op_fn) &isl_union_map_wrap } },
1054 {"zip", { -1, isl_obj_union_map, isl_obj_union_map,
1055 (isc_un_op_fn) &isl_union_map_zip } },
1056 NULL
1057 };
1058
1059 struct isl_named_obj {
1060 char *name;
1061 struct isl_obj obj;
1062 };
1063
1064 static void free_obj(struct isl_obj obj)
1065 {
1066 obj.type->free(obj.v);
1067 }
1068
1069 static int same_name(const void *entry, const void *val)
1070 {
1071 const struct isl_named_obj *named = (const struct isl_named_obj *)entry;
1072
1073 return !strcmp(named->name, val);
1074 }
1075
1076 static int do_assign(struct isl_ctx *ctx, struct isl_hash_table *table,
1077 char *name, struct isl_obj obj)
1078 {
1079 struct isl_hash_table_entry *entry;
1080 uint32_t name_hash;
1081 struct isl_named_obj *named;
1082
1083 name_hash = isl_hash_string(isl_hash_init(), name);
1084 entry = isl_hash_table_find(ctx, table, name_hash, same_name, name, 1);
1085 if (!entry)
1086 goto error;
1087 if (entry->data) {
1088 named = entry->data;
1089 free_obj(named->obj);
1090 free(name);
1091 } else {
1092 named = isl_alloc_type(ctx, struct isl_named_obj);
1093 if (!named)
1094 goto error;
1095 named->name = name;
1096 entry->data = named;
1097 }
1098 named->obj = obj;
1099
1100 return 0;
1101 error:
1102 free_obj(obj);
1103 free(name);
1104 return -1;
1105 }
1106
1107 static struct isl_obj stored_obj(struct isl_ctx *ctx,
1108 struct isl_hash_table *table, char *name)
1109 {
1110 struct isl_obj obj = { isl_obj_none, NULL };
1111 struct isl_hash_table_entry *entry;
1112 uint32_t name_hash;
1113
1114 name_hash = isl_hash_string(isl_hash_init(), name);
1115 entry = isl_hash_table_find(ctx, table, name_hash, same_name, name, 0);
1116 if (!entry) {
1117 } else if (entry != isl_hash_table_entry_none) {
1118 struct isl_named_obj *named;
1119 named = entry->data;
1120 obj = named->obj;
1121 } else if (isdigit(name[0]))
1122 fprintf(stderr, "unknown identifier '$%s'\n", name);
1123 else
1124 fprintf(stderr, "unknown identifier '%s'\n", name);
1125
1126 free(name);
1127 obj.v = obj.type->copy(obj.v);
1128 return obj;
1129 }
1130
1131 static int is_subtype(struct isl_obj obj, isl_obj_type super)
1132 {
1133 if (obj.type == super)
1134 return 1;
1135 if (obj.type == isl_obj_map && super == isl_obj_union_map)
1136 return 1;
1137 if (obj.type == isl_obj_set && super == isl_obj_union_set)
1138 return 1;
1139 if (obj.type == isl_obj_schedule && super == isl_obj_union_map)
1140 return 1;
1141 if (obj.type == isl_obj_pw_multi_aff && super == isl_obj_union_set) {
1142 isl_space *space = isl_pw_multi_aff_get_space(obj.v);
1143 int is_set = isl_space_is_set(space);
1144 isl_space_free(space);
1145 return is_set;
1146 }
1147 if (obj.type == isl_obj_pw_qpolynomial &&
1148 super == isl_obj_union_pw_qpolynomial)
1149 return 1;
1150 if (obj.type == isl_obj_pw_qpolynomial_fold &&
1151 super == isl_obj_union_pw_qpolynomial_fold)
1152 return 1;
1153 if (obj.type == isl_obj_union_set && isl_union_set_is_empty(obj.v))
1154 return 1;
1155 if (obj.type == isl_obj_list) {
1156 struct isl_list *list = obj.v;
1157 if (list->n == 2 && list->obj[1].type == isl_obj_bool)
1158 return is_subtype(list->obj[0], super);
1159 }
1160 if (super == isl_obj_str)
1161 return 1;
1162 return 0;
1163 }
1164
1165 static struct isl_obj obj_at(struct isl_obj obj, int i)
1166 {
1167 struct isl_list *list = obj.v;
1168
1169 obj = list->obj[i];
1170 obj.v = obj.type->copy(obj.v);
1171
1172 isl_list_free(list);
1173
1174 return obj;
1175 }
1176
1177 static struct isl_obj convert(isl_ctx *ctx, struct isl_obj obj,
1178 isl_obj_type type)
1179 {
1180 if (obj.type == type)
1181 return obj;
1182 if (obj.type == isl_obj_pw_multi_aff && type == isl_obj_union_set) {
1183 isl_set *set = isl_set_from_pw_multi_aff(obj.v);
1184 obj.type = isl_obj_union_set;
1185 obj.v = isl_union_set_from_set(set);
1186 return obj;
1187 }
1188 if (obj.type == isl_obj_map && type == isl_obj_union_map) {
1189 obj.type = isl_obj_union_map;
1190 obj.v = isl_union_map_from_map(obj.v);
1191 return obj;
1192 }
1193 if (obj.type == isl_obj_schedule && type == isl_obj_union_map) {
1194 obj.type = isl_obj_union_map;
1195 obj.v = schedule_map(obj.v);
1196 return obj;
1197 }
1198 if (obj.type == isl_obj_set && type == isl_obj_union_set) {
1199 obj.type = isl_obj_union_set;
1200 obj.v = isl_union_set_from_set(obj.v);
1201 return obj;
1202 }
1203 if (obj.type == isl_obj_pw_qpolynomial &&
1204 type == isl_obj_union_pw_qpolynomial) {
1205 obj.type = isl_obj_union_pw_qpolynomial;
1206 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
1207 return obj;
1208 }
1209 if (obj.type == isl_obj_pw_qpolynomial_fold &&
1210 type == isl_obj_union_pw_qpolynomial_fold) {
1211 obj.type = isl_obj_union_pw_qpolynomial_fold;
1212 obj.v = isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj.v);
1213 return obj;
1214 }
1215 if (obj.type == isl_obj_union_set && isl_union_set_is_empty(obj.v)) {
1216 if (type == isl_obj_union_map) {
1217 obj.type = isl_obj_union_map;
1218 return obj;
1219 }
1220 if (type == isl_obj_union_pw_qpolynomial) {
1221 isl_space *dim = isl_union_set_get_space(obj.v);
1222 isl_union_set_free(obj.v);
1223 obj.v = isl_union_pw_qpolynomial_zero(dim);
1224 obj.type = isl_obj_union_pw_qpolynomial;
1225 return obj;
1226 }
1227 if (type == isl_obj_union_pw_qpolynomial_fold) {
1228 isl_space *dim = isl_union_set_get_space(obj.v);
1229 isl_union_set_free(obj.v);
1230 obj.v = isl_union_pw_qpolynomial_fold_zero(dim,
1231 isl_fold_list);
1232 obj.type = isl_obj_union_pw_qpolynomial_fold;
1233 return obj;
1234 }
1235 }
1236 if (obj.type == isl_obj_list) {
1237 struct isl_list *list = obj.v;
1238 if (list->n == 2 && list->obj[1].type == isl_obj_bool)
1239 return convert(ctx, obj_at(obj, 0), type);
1240 }
1241 if (type == isl_obj_str) {
1242 isl_str *str;
1243 isl_printer *p;
1244 char *s;
1245
1246 p = isl_printer_to_str(ctx);
1247 if (!p)
1248 goto error;
1249 p = obj.type->print(p, obj.v);
1250 s = isl_printer_get_str(p);
1251 isl_printer_free(p);
1252
1253 str = isl_str_from_string(ctx, s);
1254 if (!str)
1255 goto error;
1256 free_obj(obj);
1257 obj.v = str;
1258 obj.type = isl_obj_str;
1259 return obj;
1260
1261 }
1262 error:
1263 free_obj(obj);
1264 obj.type = isl_obj_none;
1265 obj.v = NULL;
1266 return obj;
1267 }
1268
1269 static struct isc_bin_op *read_bin_op_if_available(struct isl_stream *s,
1270 struct isl_obj lhs)
1271 {
1272 int i;
1273 int read_tok2 = 0;
1274 struct isl_token *tok, *tok2;
1275
1276 tok = isl_stream_next_token(s);
1277 if (!tok)
1278 return NULL;
1279
1280 for (i = 0; ; ++i) {
1281 if (!bin_ops[i].op)
1282 break;
1283 if (bin_ops[i].op != isl_token_get_type(tok))
1284 continue;
1285 if (!is_subtype(lhs, bin_ops[i].lhs))
1286 continue;
1287
1288 isl_token_free(tok);
1289 return &bin_ops[i];
1290 }
1291
1292 for (i = 0; ; ++i) {
1293 if (!named_bin_ops[i].name)
1294 break;
1295 if (named_bin_ops[i].op.op != isl_token_get_type(tok))
1296 continue;
1297 if (!is_subtype(lhs, named_bin_ops[i].op.lhs))
1298 continue;
1299
1300 isl_token_free(tok);
1301 return &named_bin_ops[i].op;
1302 }
1303
1304 for (i = 0; ; ++i) {
1305 if (!compound_bin_ops[i].full)
1306 break;
1307 if (compound_bin_ops[i].op1 != isl_token_get_type(tok))
1308 continue;
1309 if (!read_tok2)
1310 tok2 = isl_stream_next_token(s);
1311 read_tok2 = 1;
1312 if (compound_bin_ops[i].op2 != isl_token_get_type(tok2))
1313 continue;
1314 if (!is_subtype(lhs, compound_bin_ops[i].op.lhs))
1315 continue;
1316
1317 isl_token_free(tok2);
1318 isl_token_free(tok);
1319 return &compound_bin_ops[i].op;
1320 }
1321
1322 if (read_tok2)
1323 isl_stream_push_token(s, tok2);
1324 isl_stream_push_token(s, tok);
1325
1326 return NULL;
1327 }
1328
1329 static struct isc_un_op *read_prefix_un_op_if_available(struct isl_stream *s)
1330 {
1331 int i;
1332 struct isl_token *tok;
1333
1334 tok = isl_stream_next_token(s);
1335 if (!tok)
1336 return NULL;
1337
1338 for (i = 0; ; ++i) {
1339 if (!named_un_ops[i].name)
1340 break;
1341 if (named_un_ops[i].op.op != isl_token_get_type(tok))
1342 continue;
1343
1344 isl_token_free(tok);
1345 return &named_un_ops[i].op;
1346 }
1347
1348 isl_stream_push_token(s, tok);
1349
1350 return NULL;
1351 }
1352
1353 static struct isc_un_op *find_matching_un_op(struct isc_un_op *like,
1354 struct isl_obj arg)
1355 {
1356 int i;
1357
1358 for (i = 0; ; ++i) {
1359 if (!named_un_ops[i].name)
1360 break;
1361 if (named_un_ops[i].op.op != like->op)
1362 continue;
1363 if (!is_subtype(arg, named_un_ops[i].op.arg))
1364 continue;
1365
1366 return &named_un_ops[i].op;
1367 }
1368
1369 return NULL;
1370 }
1371
1372 static int is_assign(struct isl_stream *s)
1373 {
1374 struct isl_token *tok;
1375 struct isl_token *tok2;
1376 int assign;
1377
1378 tok = isl_stream_next_token(s);
1379 if (!tok)
1380 return 0;
1381 if (isl_token_get_type(tok) != ISL_TOKEN_IDENT) {
1382 isl_stream_push_token(s, tok);
1383 return 0;
1384 }
1385
1386 tok2 = isl_stream_next_token(s);
1387 if (!tok2) {
1388 isl_stream_push_token(s, tok);
1389 return 0;
1390 }
1391 assign = isl_token_get_type(tok2) == ISL_TOKEN_DEF;
1392 isl_stream_push_token(s, tok2);
1393 isl_stream_push_token(s, tok);
1394
1395 return assign;
1396 }
1397
1398 static struct isl_obj read_obj(struct isl_stream *s,
1399 struct isl_hash_table *table);
1400 static struct isl_obj read_expr(struct isl_stream *s,
1401 struct isl_hash_table *table);
1402
1403 static struct isl_obj read_un_op_expr(struct isl_stream *s,
1404 struct isl_hash_table *table, struct isc_un_op *op)
1405 {
1406 isl_ctx *ctx;
1407 struct isl_obj obj = { isl_obj_none, NULL };
1408
1409 obj = read_obj(s, table);
1410 if (!obj.v)
1411 goto error;
1412
1413 op = find_matching_un_op(op, obj);
1414
1415 ctx = isl_stream_get_ctx(s);
1416 if (!op)
1417 isl_die(ctx, isl_error_invalid,
1418 "no such unary operator defined on given operand",
1419 goto error);
1420
1421 obj = convert(ctx, obj, op->arg);
1422 obj.v = op->fn(obj.v);
1423 obj.type = op->res;
1424
1425 return obj;
1426 error:
1427 free_obj(obj);
1428 obj.type = isl_obj_none;
1429 obj.v = NULL;
1430 return obj;
1431 }
1432
1433 static struct isl_obj transitive_closure(struct isl_ctx *ctx, struct isl_obj obj)
1434 {
1435 struct isl_list *list;
1436 int exact;
1437
1438 if (obj.type != isl_obj_union_map)
1439 obj = convert(ctx, obj, isl_obj_union_map);
1440 isl_assert(ctx, obj.type == isl_obj_union_map, goto error);
1441 list = isl_list_alloc(ctx, 2);
1442 if (!list)
1443 goto error;
1444
1445 list->obj[0].type = isl_obj_union_map;
1446 list->obj[0].v = isl_union_map_transitive_closure(obj.v, &exact);
1447 list->obj[1].type = isl_obj_bool;
1448 list->obj[1].v = exact ? &iscc_bool_true : &iscc_bool_false;
1449 obj.v = list;
1450 obj.type = isl_obj_list;
1451 if (exact < 0 || !list->obj[0].v)
1452 goto error;
1453
1454 return obj;
1455 error:
1456 free_obj(obj);
1457 obj.type = isl_obj_none;
1458 obj.v = NULL;
1459 return obj;
1460 }
1461
1462 static struct isl_obj obj_at_index(struct isl_stream *s, struct isl_obj obj)
1463 {
1464 struct isl_list *list = obj.v;
1465 struct isl_token *tok;
1466 isl_ctx *ctx;
1467 isl_val *v;
1468 int i;
1469
1470 tok = isl_stream_next_token(s);
1471 if (!tok || isl_token_get_type(tok) != ISL_TOKEN_VALUE) {
1472 isl_stream_error(s, tok, "expecting index");
1473 if (tok)
1474 isl_stream_push_token(s, tok);
1475 goto error;
1476 }
1477 ctx = isl_stream_get_ctx(s);
1478 v = isl_token_get_val(ctx, tok);
1479 i = isl_val_get_num_si(v);
1480 isl_val_free(v);
1481 isl_token_free(tok);
1482 isl_assert(ctx, i < list->n, goto error);
1483 if (isl_stream_eat(s, ']'))
1484 goto error;
1485
1486 return obj_at(obj, i);
1487 error:
1488 free_obj(obj);
1489 obj.type = isl_obj_none;
1490 obj.v = NULL;
1491 return obj;
1492 }
1493
1494 static struct isl_obj apply(struct isl_stream *s, __isl_take isl_union_map *umap,
1495 struct isl_hash_table *table)
1496 {
1497 isl_ctx *ctx;
1498 struct isl_obj obj;
1499
1500 obj = read_expr(s, table);
1501 ctx = isl_stream_get_ctx(s);
1502 isl_assert(ctx, is_subtype(obj, isl_obj_union_set) ||
1503 is_subtype(obj, isl_obj_union_map), goto error);
1504
1505 if (obj.type == isl_obj_list) {
1506 struct isl_list *list = obj.v;
1507 if (list->n == 2 && list->obj[1].type == isl_obj_bool)
1508 obj = obj_at(obj, 0);
1509 }
1510 if (obj.type == isl_obj_set)
1511 obj = convert(ctx, obj, isl_obj_union_set);
1512 else if (obj.type == isl_obj_map)
1513 obj = convert(ctx, obj, isl_obj_union_map);
1514 if (obj.type == isl_obj_union_set) {
1515 obj.v = isl_union_set_apply(obj.v, umap);
1516 } else
1517 obj.v = isl_union_map_apply_range(obj.v, umap);
1518 if (!obj.v)
1519 goto error2;
1520
1521 if (isl_stream_eat(s, ')'))
1522 goto error2;
1523
1524 return obj;
1525 error:
1526 isl_union_map_free(umap);
1527 error2:
1528 free_obj(obj);
1529 obj.type = isl_obj_none;
1530 obj.v = NULL;
1531 return obj;
1532 }
1533
1534 static struct isl_obj apply_fun_set(struct isl_obj obj,
1535 __isl_take isl_union_set *uset)
1536 {
1537 if (obj.type == isl_obj_union_pw_qpolynomial) {
1538 obj.v = isl_union_set_apply_union_pw_qpolynomial(uset, obj.v);
1539 } else {
1540 obj.type = isl_obj_list;
1541 obj.v = union_set_apply_union_pw_qpolynomial_fold(uset, obj.v);
1542 }
1543 return obj;
1544 }
1545
1546 static struct isl_obj apply_fun_map(struct isl_obj obj,
1547 __isl_take isl_union_map *umap)
1548 {
1549 if (obj.type == isl_obj_union_pw_qpolynomial) {
1550 obj.v = isl_union_map_apply_union_pw_qpolynomial(umap, obj.v);
1551 } else {
1552 obj.type = isl_obj_list;
1553 obj.v = union_map_apply_union_pw_qpolynomial_fold(umap, obj.v);
1554 }
1555 return obj;
1556 }
1557
1558 static struct isl_obj apply_fun(struct isl_stream *s,
1559 struct isl_obj obj, struct isl_hash_table *table)
1560 {
1561 struct isl_obj arg;
1562 isl_ctx *ctx;
1563
1564 arg = read_expr(s, table);
1565 ctx = isl_stream_get_ctx(s);
1566 if (!is_subtype(arg, isl_obj_union_map) &&
1567 !is_subtype(arg, isl_obj_union_set))
1568 isl_die(ctx, isl_error_invalid,
1569 "expecting set of map argument", goto error);
1570
1571 if (arg.type == isl_obj_list) {
1572 struct isl_list *list = arg.v;
1573 if (list->n == 2 && list->obj[1].type == isl_obj_bool)
1574 arg = obj_at(arg, 0);
1575 }
1576 if (arg.type == isl_obj_set)
1577 arg = convert(ctx, arg, isl_obj_union_set);
1578 else if (arg.type == isl_obj_map)
1579 arg = convert(ctx, arg, isl_obj_union_map);
1580 if (arg.type == isl_obj_union_set)
1581 obj = apply_fun_set(obj, arg.v);
1582 else
1583 obj = apply_fun_map(obj, arg.v);
1584 if (!obj.v)
1585 goto error2;
1586
1587 if (isl_stream_eat(s, ')'))
1588 goto error2;
1589
1590 return obj;
1591 error:
1592 free_obj(arg);
1593 error2:
1594 free_obj(obj);
1595 obj.type = isl_obj_none;
1596 obj.v = NULL;
1597 return obj;
1598 }
1599
1600 struct add_vertex_data {
1601 struct isl_list *list;
1602 int i;
1603 };
1604
1605 static isl_stat add_vertex(__isl_take isl_vertex *vertex, void *user)
1606 {
1607 struct add_vertex_data *data = (struct add_vertex_data *)user;
1608 isl_multi_aff *ma;
1609 isl_set *dom;
1610
1611 ma = isl_vertex_get_expr(vertex);
1612 dom = isl_set_from_basic_set(isl_vertex_get_domain(vertex));
1613
1614 data->list->obj[data->i].type = isl_obj_pw_multi_aff;
1615 data->list->obj[data->i].v = isl_pw_multi_aff_alloc(dom, ma);
1616 data->i++;
1617
1618 isl_vertex_free(vertex);
1619
1620 return isl_stat_ok;
1621 }
1622
1623 static isl_stat set_vertices(__isl_take isl_set *set, void *user)
1624 {
1625 isl_ctx *ctx;
1626 isl_basic_set *hull;
1627 isl_vertices *vertices = NULL;
1628 struct isl_list *list = NULL;
1629 isl_stat r;
1630 struct add_vertex_data *data = (struct add_vertex_data *)user;
1631
1632 set = isl_set_remove_divs(set);
1633 hull = isl_set_convex_hull(set);
1634 vertices = isl_basic_set_compute_vertices(hull);
1635 isl_basic_set_free(hull);
1636
1637 list = data->list;
1638
1639 ctx = isl_vertices_get_ctx(vertices);
1640 data->list = isl_list_alloc(ctx, isl_vertices_get_n_vertices(vertices));
1641 if (!data->list)
1642 goto error;
1643
1644 data->i = 0;
1645 r = isl_vertices_foreach_vertex(vertices, &add_vertex, user);
1646
1647 data->list = isl_list_concat(list, data->list);
1648
1649 isl_vertices_free(vertices);
1650
1651 return r;
1652 error:
1653 data->list = list;
1654 isl_vertices_free(vertices);
1655 return isl_stat_error;
1656 }
1657
1658 static struct isl_obj vertices(struct isl_stream *s,
1659 struct isl_hash_table *table)
1660 {
1661 isl_ctx *ctx;
1662 struct isl_obj obj;
1663 struct isl_list *list = NULL;
1664 isl_union_set *uset = NULL;
1665 struct add_vertex_data data = { NULL };
1666
1667 obj = read_expr(s, table);
1668 ctx = isl_stream_get_ctx(s);
1669 obj = convert(ctx, obj, isl_obj_union_set);
1670 isl_assert(ctx, obj.type == isl_obj_union_set, goto error);
1671 uset = obj.v;
1672 obj.v = NULL;
1673
1674 list = isl_list_alloc(ctx, 0);
1675 if (!list)
1676 goto error;
1677
1678 data.list = list;
1679
1680 if (isl_union_set_foreach_set(uset, &set_vertices, &data) < 0)
1681 goto error;
1682
1683 isl_union_set_free(uset);
1684
1685 obj.type = isl_obj_list;
1686 obj.v = data.list;
1687
1688 return obj;
1689 error:
1690 isl_union_set_free(uset);
1691 isl_list_free(data.list);
1692 free_obj(obj);
1693 obj.type = isl_obj_none;
1694 obj.v = NULL;
1695 return obj;
1696 }
1697
1698 static struct isl_obj type_of(struct isl_stream *s,
1699 struct isl_hash_table *table)
1700 {
1701 struct isl_obj obj;
1702 const char *type = "unknown";
1703
1704 obj = read_expr(s, table);
1705
1706 if (obj.type == isl_obj_map ||
1707 obj.type == isl_obj_union_map)
1708 type = "map";
1709 if (obj.type == isl_obj_set ||
1710 obj.type == isl_obj_union_set)
1711 type = "set";
1712 if (obj.type == isl_obj_pw_multi_aff)
1713 type = "piecewise multi-quasiaffine expression";
1714 if (obj.type == isl_obj_pw_qpolynomial ||
1715 obj.type == isl_obj_union_pw_qpolynomial)
1716 type = "piecewise quasipolynomial";
1717 if (obj.type == isl_obj_pw_qpolynomial_fold ||
1718 obj.type == isl_obj_union_pw_qpolynomial_fold)
1719 type = "piecewise quasipolynomial fold";
1720 if (obj.type == isl_obj_list)
1721 type = "list";
1722 if (obj.type == isl_obj_bool)
1723 type = "boolean";
1724 if (obj.type == isl_obj_str)
1725 type = "string";
1726 if (obj.type == isl_obj_val)
1727 type = "value";
1728 if (obj.type == isl_obj_schedule)
1729 type = "schedule";
1730
1731 free_obj(obj);
1732 obj.type = isl_obj_str;
1733 obj.v = isl_str_from_string(isl_stream_get_ctx(s), strdup(type));
1734
1735 return obj;
1736 }
1737
1738 static __isl_give isl_union_set *read_set(struct isl_stream *s,
1739 struct isl_hash_table *table)
1740 {
1741 struct isl_obj obj;
1742 isl_ctx *ctx;
1743
1744 obj = read_obj(s, table);
1745 ctx = isl_stream_get_ctx(s);
1746 obj = convert(ctx, obj, isl_obj_union_set);
1747 isl_assert(ctx, obj.type == isl_obj_union_set, goto error);
1748 return obj.v;
1749 error:
1750 free_obj(obj);
1751 return NULL;
1752 }
1753
1754 static __isl_give isl_union_map *read_map(struct isl_stream *s,
1755 struct isl_hash_table *table)
1756 {
1757 struct isl_obj obj;
1758 isl_ctx *ctx;
1759
1760 obj = read_obj(s, table);
1761 ctx = isl_stream_get_ctx(s);
1762 obj = convert(ctx, obj, isl_obj_union_map);
1763 isl_assert(ctx, obj.type == isl_obj_union_map, goto error);
1764 return obj.v;
1765 error:
1766 free_obj(obj);
1767 return NULL;
1768 }
1769
1770 /* Read a schedule in the form of either a schedule (tree) or a union map
1771 * from "s" and store the schedule in "access".
1772 */
1773 static __isl_give isl_union_access_info *access_info_set_schedule(
1774 __isl_take isl_union_access_info *access, struct isl_stream *s,
1775 struct isl_hash_table *table)
1776 {
1777 struct isl_obj obj;
1778 isl_ctx *ctx;
1779
1780 obj = read_obj(s, table);
1781 if (obj.type == isl_obj_schedule)
1782 return isl_union_access_info_set_schedule(access, obj.v);
1783 ctx = isl_stream_get_ctx(s);
1784 obj = convert(ctx, obj, isl_obj_union_map);
1785
1786 return isl_union_access_info_set_schedule_map(access, obj.v);
1787 }
1788
1789 static struct isl_obj last_any(struct isl_stream *s,
1790 struct isl_hash_table *table, __isl_take isl_union_map *must_source,
1791 __isl_take isl_union_map *may_source)
1792 {
1793 struct isl_obj obj = { isl_obj_none, NULL };
1794 isl_union_access_info *access;
1795 isl_union_flow *flow;
1796 isl_union_map *sink = NULL;
1797 isl_union_map *may_dep;
1798
1799 if (isl_stream_eat(s, iscc_op[ISCC_BEFORE]))
1800 goto error;
1801
1802 sink = read_map(s, table);
1803 if (!sink)
1804 goto error;
1805
1806 if (isl_stream_eat(s, iscc_op[ISCC_UNDER]))
1807 goto error;
1808
1809 access = isl_union_access_info_from_sink(sink);
1810 access = isl_union_access_info_set_must_source(access, must_source);
1811 access = isl_union_access_info_set_may_source(access, may_source);
1812 access = access_info_set_schedule(access, s, table);
1813 flow = isl_union_access_info_compute_flow(access);
1814 may_dep = isl_union_flow_get_may_dependence(flow);
1815 isl_union_flow_free(flow);
1816
1817 if (!may_dep)
1818 return obj;
1819
1820 obj.type = isl_obj_union_map;
1821 obj.v = may_dep;
1822
1823 return obj;
1824 error:
1825 isl_union_map_free(may_source);
1826 isl_union_map_free(must_source);
1827 isl_union_map_free(sink);
1828 free_obj(obj);
1829 obj.type = isl_obj_none;
1830 obj.v = NULL;
1831 return obj;
1832 }
1833
1834 static struct isl_obj any(struct isl_stream *s, struct isl_hash_table *table)
1835 {
1836 struct isl_obj obj = { isl_obj_none, NULL };
1837 isl_union_access_info *access;
1838 isl_union_flow *flow;
1839 isl_union_map *may_source = NULL;
1840 isl_union_map *sink = NULL;
1841 isl_union_map *may_dep;
1842
1843 may_source = read_map(s, table);
1844 if (!may_source)
1845 goto error;
1846
1847 if (isl_stream_eat_if_available(s, iscc_op[ISCC_LAST])) {
1848 isl_union_map *must_source;
1849 must_source = read_map(s, table);
1850 if (!must_source)
1851 goto error;
1852 return last_any(s, table, must_source, may_source);
1853 }
1854
1855 if (isl_stream_eat(s, iscc_op[ISCC_BEFORE]))
1856 goto error;
1857
1858 sink = read_map(s, table);
1859 if (!sink)
1860 goto error;
1861
1862 if (isl_stream_eat(s, iscc_op[ISCC_UNDER]))
1863 goto error;
1864
1865 access = isl_union_access_info_from_sink(sink);
1866 access = isl_union_access_info_set_may_source(access, may_source);
1867 access = access_info_set_schedule(access, s, table);
1868 flow = isl_union_access_info_compute_flow(access);
1869 may_dep = isl_union_flow_get_may_dependence(flow);
1870 isl_union_flow_free(flow);
1871
1872 if (!may_dep)
1873 return obj;
1874
1875 obj.type = isl_obj_union_map;
1876 obj.v = may_dep;
1877
1878 return obj;
1879 error:
1880 isl_union_map_free(may_source);
1881 isl_union_map_free(sink);
1882 free_obj(obj);
1883 obj.type = isl_obj_none;
1884 obj.v = NULL;
1885 return obj;
1886 }
1887
1888 static struct isl_obj last(struct isl_stream *s, struct isl_hash_table *table)
1889 {
1890 struct isl_obj obj = { isl_obj_none, NULL };
1891 struct isl_list *list = NULL;
1892 isl_union_access_info *access;
1893 isl_union_flow *flow;
1894 isl_union_map *must_source = NULL;
1895 isl_union_map *sink = NULL;
1896 isl_union_map *must_dep;
1897 isl_union_map *must_no_source;
1898
1899 must_source = read_map(s, table);
1900 if (!must_source)
1901 goto error;
1902
1903 if (isl_stream_eat_if_available(s, iscc_op[ISCC_ANY])) {
1904 isl_union_map *may_source;
1905 may_source = read_map(s, table);
1906 if (!may_source)
1907 goto error;
1908 return last_any(s, table, must_source, may_source);
1909 }
1910
1911 list = isl_list_alloc(isl_stream_get_ctx(s), 2);
1912 if (!list)
1913 goto error;
1914
1915 if (isl_stream_eat(s, iscc_op[ISCC_BEFORE]))
1916 goto error;
1917
1918 sink = read_map(s, table);
1919 if (!sink)
1920 goto error;
1921
1922 if (isl_stream_eat(s, iscc_op[ISCC_UNDER]))
1923 goto error;
1924
1925 access = isl_union_access_info_from_sink(sink);
1926 access = isl_union_access_info_set_must_source(access, must_source);
1927 access = access_info_set_schedule(access, s, table);
1928 flow = isl_union_access_info_compute_flow(access);
1929 must_dep = isl_union_flow_get_must_dependence(flow);
1930 must_no_source = isl_union_flow_get_must_no_source(flow);
1931 isl_union_flow_free(flow);
1932
1933 list->obj[0].type = isl_obj_union_map;
1934 list->obj[0].v = must_dep;
1935 list->obj[1].type = isl_obj_union_map;
1936 list->obj[1].v = must_no_source;
1937
1938 if (!must_dep || !must_no_source) {
1939 isl_list_free(list);
1940 return obj;
1941 }
1942
1943 obj.v = list;
1944 obj.type = isl_obj_list;
1945
1946 return obj;
1947 error:
1948 isl_list_free(list);
1949 isl_union_map_free(must_source);
1950 isl_union_map_free(sink);
1951 free_obj(obj);
1952 obj.type = isl_obj_none;
1953 obj.v = NULL;
1954 return obj;
1955 }
1956
1957 static __isl_give isl_schedule *get_schedule(struct isl_stream *s,
1958 struct isl_hash_table *table)
1959 {
1960 isl_union_set *domain;
1961 isl_union_map *validity;
1962 isl_union_map *proximity;
1963
1964 domain = read_set(s, table);
1965 if (!domain)
1966 return NULL;
1967
1968 validity = isl_union_map_empty(isl_union_set_get_space(domain));
1969 proximity = isl_union_map_empty(isl_union_set_get_space(domain));
1970
1971 for (;;) {
1972 isl_union_map *umap;
1973 if (isl_stream_eat_if_available(s, iscc_op[ISCC_RESPECTING])) {
1974 umap = read_map(s, table);
1975 validity = isl_union_map_union(validity, umap);
1976 } else if (isl_stream_eat_if_available(s, iscc_op[ISCC_MINIMIZING])) {
1977 umap = read_map(s, table);
1978 proximity = isl_union_map_union(proximity, umap);
1979 } else
1980 break;
1981 }
1982
1983 return isl_union_set_compute_schedule(domain, validity, proximity);
1984 }
1985
1986 static struct isl_obj schedule(struct isl_stream *s,
1987 struct isl_hash_table *table)
1988 {
1989 struct isl_obj obj = { isl_obj_none, NULL };
1990 isl_schedule *schedule;
1991
1992 schedule = get_schedule(s, table);
1993
1994 obj.v = schedule;
1995 obj.type = isl_obj_schedule;
1996
1997 return obj;
1998 }
1999
2000 /* Read a schedule for code generation in the form of either
2001 * a schedule tree or a union map.
2002 */
2003 static struct isl_obj get_codegen_schedule(struct isl_stream *s,
2004 struct isl_hash_table *table)
2005 {
2006 struct isl_obj obj;
2007 isl_ctx *ctx;
2008
2009 obj = read_obj(s, table);
2010 ctx = isl_stream_get_ctx(s);
2011
2012 if (obj.type == isl_obj_schedule)
2013 return obj;
2014 if (is_subtype(obj, isl_obj_union_map))
2015 return convert(ctx, obj, isl_obj_union_map);
2016
2017 free_obj(obj);
2018 obj.v = NULL;
2019 obj.type = isl_obj_none;
2020 isl_die(ctx, isl_error_invalid, "expecting schedule or map",
2021 return obj);
2022 }
2023
2024 /* Generate an AST for the given schedule and options and return the AST.
2025 */
2026 static __isl_give isl_ast_node *get_ast_from_union_map(
2027 __isl_take isl_union_map *schedule, __isl_take isl_union_map *options)
2028 {
2029 isl_space *space;
2030 isl_set *context;
2031 isl_ast_build *build;
2032 isl_ast_node *tree;
2033
2034 space = isl_union_map_get_space(schedule);
2035 context = isl_set_universe(isl_space_params(space));
2036
2037 build = isl_ast_build_from_context(context);
2038 build = isl_ast_build_set_options(build, options);
2039 tree = isl_ast_build_ast_from_schedule(build, schedule);
2040 isl_ast_build_free(build);
2041
2042 return tree;
2043 }
2044
2045 /* Generate an AST for the given schedule and return the AST.
2046 */
2047 static __isl_give isl_ast_node *get_ast_from_schedule(
2048 __isl_take isl_schedule *schedule)
2049 {
2050 isl_ast_build *build;
2051 isl_ast_node *tree;
2052
2053 build = isl_ast_build_alloc(isl_schedule_get_ctx(schedule));
2054 tree = isl_ast_build_node_from_schedule(build, schedule);
2055 isl_ast_build_free(build);
2056
2057 return tree;
2058 }
2059
2060 /* Print the AST "tree" on the printer "p".
2061 */
2062 static __isl_give isl_printer *print_ast(__isl_take isl_printer *p,
2063 __isl_take isl_ast_node *tree)
2064 {
2065 int format;
2066
2067 format = isl_printer_get_output_format(p);
2068 p = isl_printer_set_output_format(p, ISL_FORMAT_C);
2069 p = isl_printer_print_ast_node(p, tree);
2070 p = isl_printer_set_output_format(p, format);
2071
2072 isl_ast_node_free(tree);
2073
2074 return p;
2075 }
2076
2077 /* Perform the codegen operation.
2078 * In particular, read a schedule, check if the user has specified any options
2079 * and then generate an AST from the schedule (and options) and print it.
2080 * In case the schedule is specified as a schedule tree, the AST generation
2081 * options are embedded in the schedule, so they are not read in separately.
2082 */
2083 static __isl_give isl_printer *codegen(struct isl_stream *s,
2084 struct isl_hash_table *table, __isl_take isl_printer *p)
2085 {
2086 struct isl_obj obj;
2087 isl_ast_node *tree;
2088
2089 obj = get_codegen_schedule(s, table);
2090 if (!obj.v)
2091 return p;
2092
2093 if (obj.type == isl_obj_schedule) {
2094 isl_schedule *schedule = obj.v;
2095
2096 tree = get_ast_from_schedule(schedule);
2097 } else {
2098 isl_union_map *schedule = obj.v;
2099 isl_union_map *options;
2100
2101 if (isl_stream_eat_if_available(s, iscc_op[ISCC_USING]))
2102 options = read_map(s, table);
2103 else
2104 options = isl_union_map_empty(
2105 isl_union_map_get_space(schedule));
2106
2107 tree = get_ast_from_union_map(schedule, options);
2108 }
2109
2110 if (tree)
2111 p = print_ast(p, tree);
2112
2113 isl_stream_eat(s, ';');
2114
2115 return p;
2116 }
2117
2118 static struct isl_obj power(struct isl_stream *s, struct isl_obj obj)
2119 {
2120 struct isl_token *tok;
2121 isl_ctx *ctx;
2122 isl_val *v;
2123
2124 ctx = isl_stream_get_ctx(s);
2125 if (isl_stream_eat_if_available(s, '+'))
2126 return transitive_closure(ctx, obj);
2127
2128 isl_assert(ctx, is_subtype(obj, isl_obj_union_map), goto error);
2129 if (obj.type != isl_obj_union_map)
2130 obj = convert(ctx, obj, isl_obj_union_map);
2131
2132 tok = isl_stream_next_token(s);
2133 if (!tok || isl_token_get_type(tok) != ISL_TOKEN_VALUE) {
2134 isl_stream_error(s, tok, "expecting integer exponent");
2135 if (tok)
2136 isl_stream_push_token(s, tok);
2137 goto error;
2138 }
2139
2140 v = isl_token_get_val(ctx, tok);
2141 if (isl_val_is_zero(v)) {
2142 isl_stream_error(s, tok, "expecting non-zero exponent");
2143 isl_val_free(v);
2144 if (tok)
2145 isl_stream_push_token(s, tok);
2146 goto error;
2147 }
2148
2149 obj.v = isl_union_map_fixed_power_val(obj.v, v);
2150 isl_token_free(tok);
2151 if (!obj.v)
2152 goto error;
2153
2154 return obj;
2155 error:
2156 free_obj(obj);
2157 obj.type = isl_obj_none;
2158 obj.v = NULL;
2159 return obj;
2160 }
2161
2162 static struct isl_obj check_assert(struct isl_stream *s,
2163 struct isl_hash_table *table)
2164 {
2165 struct isl_obj obj;
2166 isl_ctx *ctx;
2167
2168 obj = read_expr(s, table);
2169 ctx = isl_stream_get_ctx(s);
2170 if (obj.type != isl_obj_bool)
2171 isl_die(ctx, isl_error_invalid,
2172 "expecting boolean expression", goto error);
2173 if (obj.v != &iscc_bool_true)
2174 isl_die(ctx, isl_error_unknown,
2175 "assertion failed", abort());
2176 error:
2177 free_obj(obj);
2178 obj.type = isl_obj_none;
2179 obj.v = NULL;
2180 return obj;
2181 }
2182
2183 static struct isl_obj read_from_file(struct isl_stream *s)
2184 {
2185 isl_ctx *ctx;
2186 struct isl_obj obj;
2187 struct isl_token *tok;
2188 struct isl_stream *s_file;
2189 struct iscc_options *options;
2190 char *name;
2191 FILE *file;
2192
2193 tok = isl_stream_next_token(s);
2194 if (!tok || isl_token_get_type(tok) != ISL_TOKEN_STRING) {
2195 isl_stream_error(s, tok, "expecting filename");
2196 isl_token_free(tok);
2197 goto error;
2198 }
2199
2200 ctx = isl_stream_get_ctx(s);
2201 options = isl_ctx_peek_iscc_options(ctx);
2202 if (!options || !options->io) {
2203 isl_token_free(tok);
2204 isl_die(ctx, isl_error_invalid,
2205 "read operation not allowed", goto error);
2206 }
2207
2208 name = isl_token_get_str(ctx, tok);
2209 isl_token_free(tok);
2210 file = fopen(name, "r");
2211 free(name);
2212 isl_assert(ctx, file, goto error);
2213
2214 s_file = isl_stream_new_file(ctx, file);
2215 if (!s_file) {
2216 fclose(file);
2217 goto error;
2218 }
2219
2220 obj = isl_stream_read_obj(s_file);
2221
2222 isl_stream_free(s_file);
2223 fclose(file);
2224
2225 return obj;
2226 error:
2227 obj.type = isl_obj_none;
2228 obj.v = NULL;
2229 return obj;
2230 }
2231
2232 static struct isl_obj write_to_file(struct isl_stream *s,
2233 struct isl_hash_table *table)
2234 {
2235 struct isl_obj obj = { isl_obj_none, NULL };
2236 struct isl_token *tok;
2237 struct iscc_options *options;
2238 char *name;
2239 FILE *file;
2240 isl_ctx *ctx;
2241 isl_printer *p;
2242
2243 tok = isl_stream_next_token(s);
2244 if (!tok || isl_token_get_type(tok) != ISL_TOKEN_STRING) {
2245 isl_stream_error(s, tok, "expecting filename");
2246 isl_token_free(tok);
2247 goto error;
2248 }
2249
2250 obj = read_expr(s, table);
2251
2252 ctx = isl_stream_get_ctx(s);
2253 options = isl_ctx_peek_iscc_options(ctx);
2254 if (!options || !options->io) {
2255 isl_token_free(tok);
2256 isl_die(ctx, isl_error_invalid,
2257 "write operation not allowed", goto error);
2258 }
2259
2260 name = isl_token_get_str(ctx, tok);
2261 isl_token_free(tok);
2262 file = fopen(name, "w");
2263 free(name);
2264 if (!file)
2265 isl_die(ctx, isl_error_unknown,
2266 "could not open file for writing", goto error);
2267
2268 p = isl_printer_to_file(ctx, file);
2269 p = isl_printer_set_output_format(p, options->format);
2270 p = obj.type->print(p, obj.v);
2271 p = isl_printer_end_line(p);
2272 isl_printer_free(p);
2273
2274 fclose(file);
2275 error:
2276 free_obj(obj);
2277 obj.type = isl_obj_none;
2278 obj.v = NULL;
2279 return obj;
2280 }
2281
2282 static struct isl_obj read_string_if_available(struct isl_stream *s)
2283 {
2284 struct isl_token *tok;
2285 struct isl_obj obj = { isl_obj_none, NULL };
2286
2287 tok = isl_stream_next_token(s);
2288 if (!tok)
2289 return obj;
2290 if (isl_token_get_type(tok) == ISL_TOKEN_STRING) {
2291 isl_str *str;
2292 str = isl_str_alloc(isl_stream_get_ctx(s));
2293 if (!str)
2294 goto error;
2295 str->s = isl_token_get_str(isl_stream_get_ctx(s), tok);
2296 isl_token_free(tok);
2297 obj.v = str;
2298 obj.type = isl_obj_str;
2299 } else
2300 isl_stream_push_token(s, tok);
2301 return obj;
2302 error:
2303 isl_token_free(tok);
2304 return obj;
2305 }
2306
2307 static struct isl_obj read_bool_if_available(struct isl_stream *s)
2308 {
2309 struct isl_token *tok;
2310 struct isl_obj obj = { isl_obj_none, NULL };
2311 int type;
2312
2313 tok = isl_stream_next_token(s);
2314 if (!tok)
2315 return obj;
2316 type = isl_token_get_type(tok);
2317 if (type == ISL_TOKEN_FALSE || type == ISL_TOKEN_TRUE) {
2318 int is_true = type == ISL_TOKEN_TRUE;
2319 isl_token_free(tok);
2320 obj.v = is_true ? &iscc_bool_true : &iscc_bool_false;
2321 obj.type = isl_obj_bool;
2322 } else
2323 isl_stream_push_token(s, tok);
2324 return obj;
2325 }
2326
2327 static __isl_give char *read_ident(struct isl_stream *s)
2328 {
2329 char *name;
2330 isl_val *v;
2331 struct isl_token *tok, *tok2;
2332
2333 name = isl_stream_read_ident_if_available(s);
2334 if (name)
2335 return name;
2336
2337 tok = isl_stream_next_token(s);
2338 if (!tok)
2339 return NULL;
2340 if (isl_token_get_type(tok) != '$') {
2341 isl_stream_push_token(s, tok);
2342 return NULL;
2343 }
2344 tok2 = isl_stream_next_token(s);
2345 if (!tok2 || isl_token_get_type(tok2) != ISL_TOKEN_VALUE) {
2346 if (tok2)
2347 isl_stream_push_token(s, tok2);
2348 isl_stream_push_token(s, tok);
2349 return NULL;
2350 }
2351
2352 v = isl_token_get_val(isl_stream_get_ctx(s), tok2);
2353 name = isl_val_to_str(v);
2354 isl_val_free(v);
2355 isl_token_free(tok);
2356 isl_token_free(tok2);
2357
2358 return name;
2359 }
2360
2361 static struct isl_obj read_list(struct isl_stream *s,
2362 struct isl_hash_table *table, struct isl_obj obj)
2363 {
2364 struct isl_list *list;
2365
2366 list = isl_list_alloc(isl_stream_get_ctx(s), 2);
2367 if (!list)
2368 goto error;
2369 list->obj[0] = obj;
2370 list->obj[1] = read_obj(s, table);
2371 obj.v = list;
2372 obj.type = isl_obj_list;
2373
2374 if (!list->obj[1].v)
2375 goto error;
2376
2377 while (isl_stream_eat_if_available(s, ',')) {
2378 obj.v = list = isl_list_add_obj(list, read_obj(s, table));
2379 if (!obj.v)
2380 goto error;
2381 }
2382
2383 return obj;
2384 error:
2385 free_obj(obj);
2386 obj.type = isl_obj_none;
2387 obj.v = NULL;
2388 return obj;
2389 }
2390
2391 static struct isl_obj read_obj(struct isl_stream *s,
2392 struct isl_hash_table *table)
2393 {
2394 isl_ctx *ctx;
2395 struct isl_obj obj = { isl_obj_none, NULL };
2396 char *name = NULL;
2397 struct isc_un_op *op = NULL;
2398
2399 obj = read_string_if_available(s);
2400 if (obj.v)
2401 return obj;
2402 obj = read_bool_if_available(s);
2403 if (obj.v)
2404 return obj;
2405 ctx = isl_stream_get_ctx(s);
2406 if (isl_stream_eat_if_available(s, '(')) {
2407 if (isl_stream_next_token_is(s, ')')) {
2408 obj.type = isl_obj_list;
2409 obj.v = isl_list_alloc(ctx, 0);
2410 } else {
2411 obj = read_expr(s, table);
2412 if (obj.v && isl_stream_eat_if_available(s, ','))
2413 obj = read_list(s, table, obj);
2414 }
2415 if (!obj.v || isl_stream_eat(s, ')'))
2416 goto error;
2417 } else {
2418 op = read_prefix_un_op_if_available(s);
2419 if (op)
2420 return read_un_op_expr(s, table, op);
2421
2422 if (isl_stream_eat_if_available(s, iscc_op[ISCC_ASSERT]))
2423 return check_assert(s, table);
2424 if (isl_stream_eat_if_available(s, iscc_op[ISCC_READ]))
2425 return read_from_file(s);
2426 if (isl_stream_eat_if_available(s, iscc_op[ISCC_WRITE]))
2427 return write_to_file(s, table);
2428 if (isl_stream_eat_if_available(s, iscc_op[ISCC_VERTICES]))
2429 return vertices(s, table);
2430 if (isl_stream_eat_if_available(s, iscc_op[ISCC_ANY]))
2431 return any(s, table);
2432 if (isl_stream_eat_if_available(s, iscc_op[ISCC_LAST]))
2433 return last(s, table);
2434 if (isl_stream_eat_if_available(s, iscc_op[ISCC_SCHEDULE]))
2435 return schedule(s, table);
2436 if (isl_stream_eat_if_available(s, iscc_op[ISCC_TYPEOF]))
2437 return type_of(s, table);
2438
2439 name = read_ident(s);
2440 if (name)
2441 obj = stored_obj(ctx, table, name);
2442 else
2443 obj = isl_stream_read_obj(s);
2444 if (!obj.v)
2445 goto error;
2446 }
2447
2448 if (isl_stream_eat_if_available(s, '^'))
2449 obj = power(s, obj);
2450 else if (obj.type == isl_obj_list && isl_stream_eat_if_available(s, '['))
2451 obj = obj_at_index(s, obj);
2452 else if (is_subtype(obj, isl_obj_union_map) &&
2453 isl_stream_eat_if_available(s, '(')) {
2454 obj = convert(ctx, obj, isl_obj_union_map);
2455 obj = apply(s, obj.v, table);
2456 } else if (is_subtype(obj, isl_obj_union_pw_qpolynomial) &&
2457 isl_stream_eat_if_available(s, '(')) {
2458 obj = convert(ctx, obj, isl_obj_union_pw_qpolynomial);
2459 obj = apply_fun(s, obj, table);
2460 } else if (is_subtype(obj, isl_obj_union_pw_qpolynomial_fold) &&
2461 isl_stream_eat_if_available(s, '(')) {
2462 obj = convert(ctx, obj, isl_obj_union_pw_qpolynomial_fold);
2463 obj = apply_fun(s, obj, table);
2464 }
2465
2466 return obj;
2467 error:
2468 free_obj(obj);
2469 obj.type = isl_obj_none;
2470 obj.v = NULL;
2471 return obj;
2472 }
2473
2474 static struct isc_bin_op *find_matching_bin_op(struct isc_bin_op *like,
2475 struct isl_obj lhs, struct isl_obj rhs)
2476 {
2477 int i;
2478
2479 for (i = 0; ; ++i) {
2480 if (!bin_ops[i].op)
2481 break;
2482 if (bin_ops[i].op != like->op)
2483 continue;
2484 if (!is_subtype(lhs, bin_ops[i].lhs))
2485 continue;
2486 if (!is_subtype(rhs, bin_ops[i].rhs))
2487 continue;
2488
2489 return &bin_ops[i];
2490 }
2491
2492 for (i = 0; ; ++i) {
2493 if (!named_bin_ops[i].name)
2494 break;
2495 if (named_bin_ops[i].op.op != like->op)
2496 continue;
2497 if (!is_subtype(lhs, named_bin_ops[i].op.lhs))
2498 continue;
2499 if (!is_subtype(rhs, named_bin_ops[i].op.rhs))
2500 continue;
2501
2502 return &named_bin_ops[i].op;
2503 }
2504
2505 for (i = 0; ; ++i) {
2506 if (!compound_bin_ops[i].full)
2507 break;
2508 if (compound_bin_ops[i].op.op != like->op)
2509 continue;
2510 if (!is_subtype(lhs, compound_bin_ops[i].op.lhs))
2511 continue;
2512 if (!is_subtype(rhs, compound_bin_ops[i].op.rhs))
2513 continue;
2514
2515 return &compound_bin_ops[i].op;
2516 }
2517
2518 return NULL;
2519 }
2520
2521 static int next_is_neg_int(struct isl_stream *s)
2522 {
2523 struct isl_token *tok;
2524 int ret;
2525
2526 tok = isl_stream_next_token(s);
2527 if (tok && isl_token_get_type(tok) == ISL_TOKEN_VALUE) {
2528 isl_val *v;
2529 v = isl_token_get_val(isl_stream_get_ctx(s), tok);
2530 ret = isl_val_is_neg(v);
2531 isl_val_free(v);
2532 } else
2533 ret = 0;
2534 isl_stream_push_token(s, tok);
2535
2536 return ret;
2537 }
2538
2539 static struct isl_obj call_bin_op(isl_ctx *ctx, struct isc_bin_op *op,
2540 struct isl_obj lhs, struct isl_obj rhs)
2541 {
2542 struct isl_obj obj;
2543
2544 lhs = convert(ctx, lhs, op->lhs);
2545 rhs = convert(ctx, rhs, op->rhs);
2546 if (op->res != isl_obj_bool)
2547 obj.v = op->o.fn(lhs.v, rhs.v);
2548 else {
2549 int res = op->o.test(lhs.v, rhs.v);
2550 free_obj(lhs);
2551 free_obj(rhs);
2552 obj.v = iscc_bool_from_int(res);
2553 }
2554 obj.type = op->res;
2555
2556 return obj;
2557 }
2558
2559 static struct isl_obj read_expr(struct isl_stream *s,
2560 struct isl_hash_table *table)
2561 {
2562 isl_ctx *ctx;
2563 struct isl_obj obj = { isl_obj_none, NULL };
2564 struct isl_obj right_obj = { isl_obj_none, NULL };
2565
2566 obj = read_obj(s, table);
2567 ctx = isl_stream_get_ctx(s);
2568 for (; obj.v;) {
2569 struct isc_bin_op *op = NULL;
2570
2571 op = read_bin_op_if_available(s, obj);
2572 if (!op)
2573 break;
2574
2575 right_obj = read_obj(s, table);
2576
2577 op = find_matching_bin_op(op, obj, right_obj);
2578
2579 if (!op)
2580 isl_die(ctx, isl_error_invalid,
2581 "no such binary operator defined on given operands",
2582 goto error);
2583
2584 obj = call_bin_op(ctx, op, obj, right_obj);
2585 }
2586
2587 if (obj.type == isl_obj_val && next_is_neg_int(s)) {
2588 right_obj = read_obj(s, table);
2589 obj.v = isl_val_add(obj.v, right_obj.v);
2590 }
2591
2592 return obj;
2593 error:
2594 free_obj(right_obj);
2595 free_obj(obj);
2596 obj.type = isl_obj_none;
2597 obj.v = NULL;
2598 return obj;
2599 }
2600
2601 static __isl_give isl_printer *source_file(struct isl_stream *s,
2602 struct isl_hash_table *table, __isl_take isl_printer *p);
2603
2604 /* Print "obj" to the printer "p".
2605 * If the object is a schedule, then print it in block format.
2606 */
2607 static __isl_give isl_printer *print_obj(__isl_take isl_printer *p,
2608 struct isl_obj obj)
2609 {
2610 if (obj.type != isl_obj_schedule)
2611 return obj.type->print(p, obj.v);
2612
2613 p = isl_printer_set_yaml_style(p, ISL_YAML_STYLE_BLOCK);
2614 p = obj.type->print(p, obj.v);
2615 p = isl_printer_set_yaml_style(p, ISL_YAML_STYLE_FLOW);
2616
2617 return p;
2618 }
2619
2620 static __isl_give isl_printer *read_line(struct isl_stream *s,
2621 struct isl_hash_table *table, __isl_take isl_printer *p, int tty)
2622 {
2623 isl_ctx *ctx;
2624 struct isl_obj obj = { isl_obj_none, NULL };
2625 char *lhs = NULL;
2626 int assign = 0;
2627 int only_print = 0;
2628 char buf[30];
2629
2630 if (!p)
2631 return NULL;
2632 if (isl_stream_is_empty(s))
2633 return p;
2634
2635 if (isl_stream_eat_if_available(s, iscc_op[ISCC_SOURCE]))
2636 return source_file(s, table, p);
2637 if (isl_stream_eat_if_available(s, iscc_op[ISCC_CODEGEN]))
2638 return codegen(s, table, p);
2639
2640 assign = is_assign(s);
2641 if (assign) {
2642 lhs = isl_stream_read_ident_if_available(s);
2643 if (isl_stream_eat(s, ISL_TOKEN_DEF))
2644 goto error;
2645 } else if (isl_stream_eat_if_available(s, iscc_op[ISCC_PRINT]))
2646 only_print = 1;
2647 else if (!tty)
2648 only_print = 1;
2649
2650 obj = read_expr(s, table);
2651 ctx = isl_stream_get_ctx(s);
2652 if (isl_stream_eat(s, ';'))
2653 goto error;
2654
2655 if (only_print) {
2656 if (obj.type != isl_obj_none && obj.v != NULL) {
2657 p = print_obj(p, obj);
2658 p = isl_printer_end_line(p);
2659 }
2660 free_obj(obj);
2661 return p;
2662 }
2663 if (!assign && obj.type != isl_obj_none && obj.v != NULL) {
2664 static int count = 0;
2665 snprintf(buf, sizeof(buf), "$%d", count++);
2666 lhs = strdup(buf + 1);
2667
2668 p = isl_printer_print_str(p, buf);
2669 p = isl_printer_print_str(p, " := ");
2670 p = obj.type->print(p, obj.v);
2671 p = isl_printer_end_line(p);
2672 }
2673 if (lhs && do_assign(ctx, table, lhs, obj))
2674 return p;
2675
2676 return p;
2677 error:
2678 isl_stream_flush_tokens(s);
2679 isl_stream_skip_line(s);
2680 free(lhs);
2681 free_obj(obj);
2682 return p;
2683 }
2684
2685 static isl_stat free_cb(void **entry, void *user)
2686 {
2687 struct isl_named_obj *named = *entry;
2688
2689 free_obj(named->obj);
2690 free(named->name);
2691 free(named);
2692
2693 return isl_stat_ok;
2694 }
2695
2696 static void register_named_ops(struct isl_stream *s)
2697 {
2698 int i;
2699
2700 for (i = 0; i < ISCC_N_OP; ++i) {
2701 iscc_op[i] = isl_stream_register_keyword(s, op_name[i]);
2702 assert(iscc_op[i] != ISL_TOKEN_ERROR);
2703 }
2704
2705 for (i = 0; ; ++i) {
2706 if (!named_un_ops[i].name)
2707 break;
2708 named_un_ops[i].op.op = isl_stream_register_keyword(s,
2709 named_un_ops[i].name);
2710 assert(named_un_ops[i].op.op != ISL_TOKEN_ERROR);
2711 }
2712
2713 for (i = 0; ; ++i) {
2714 if (!named_bin_ops[i].name)
2715 break;
2716 named_bin_ops[i].op.op = isl_stream_register_keyword(s,
2717 named_bin_ops[i].name);
2718 assert(named_bin_ops[i].op.op != ISL_TOKEN_ERROR);
2719 }
2720
2721 for (i = 0; ; ++i) {
2722 if (!compound_bin_ops[i].full)
2723 break;
2724 compound_bin_ops[i].op.op = isl_stream_register_keyword(s,
2725 compound_bin_ops[i].full);
2726 assert(compound_bin_ops[i].op.op != ISL_TOKEN_ERROR);
2727 }
2728 }
2729
2730 static __isl_give isl_printer *source_file(struct isl_stream *s,
2731 struct isl_hash_table *table, __isl_take isl_printer *p)
2732 {
2733 isl_ctx *ctx;
2734 struct isl_token *tok;
2735 struct isl_stream *s_file;
2736 struct iscc_options *options;
2737 char *name;
2738 FILE *file;
2739
2740 tok = isl_stream_next_token(s);
2741 if (!tok || isl_token_get_type(tok) != ISL_TOKEN_STRING) {
2742 isl_stream_error(s, tok, "expecting filename");
2743 isl_token_free(tok);
2744 return p;
2745 }
2746
2747 isl_stream_eat(s, ';');
2748
2749 ctx = isl_stream_get_ctx(s);
2750 options = isl_ctx_peek_iscc_options(ctx);
2751 if (!options || !options->io) {
2752 isl_token_free(tok);
2753 isl_die(ctx, isl_error_invalid,
2754 "source operation not allowed", return p);
2755 }
2756
2757 name = isl_token_get_str(ctx, tok);
2758 isl_token_free(tok);
2759 file = fopen(name, "r");
2760 free(name);
2761 isl_assert(ctx, file, return p);
2762
2763 s_file = isl_stream_new_file(ctx, file);
2764 if (!s_file) {
2765 fclose(file);
2766 return p;
2767 }
2768
2769 register_named_ops(s_file);
2770
2771 while (!isl_stream_is_empty(s_file))
2772 p = read_line(s_file, table, p, 0);
2773
2774 isl_stream_free(s_file);
2775 fclose(file);
2776
2777 return p;
2778 }
2779
2780 int main(int argc, char **argv)
2781 {
2782 struct isl_ctx *ctx;
2783 struct isl_stream *s;
2784 struct isl_hash_table *table;
2785 struct iscc_options *options;
2786 isl_printer *p;
2787 int tty = isatty(0);
2788
2789 options = iscc_options_new_with_defaults();
2790 assert(options);
2791
2792 ctx = isl_ctx_alloc_with_options(&iscc_options_args, options);
2793 pet_options_set_autodetect(ctx, 1);
2794 pet_options_set_encapsulate_dynamic_control(ctx, 1);
2795 argc = isl_ctx_parse_options(ctx, argc, argv, ISL_ARG_ALL);
2796 s = isl_stream_new_file(ctx, stdin);
2797 assert(s);
2798 table = isl_hash_table_alloc(ctx, 10);
2799 assert(table);
2800 p = isl_printer_to_file(ctx, stdout);
2801 p = isl_printer_set_output_format(p, options->format);
2802 assert(p);
2803
2804 register_named_ops(s);
2805
2806 install_signal_handler(ctx);
2807
2808 while (p) {
2809 int empty;
2810
2811 empty = isl_stream_is_empty(s);
2812 if (empty && isl_ctx_last_error(ctx) != isl_error_abort)
2813 break;
2814 if (!empty)
2815 p = read_line(s, table, p, tty);
2816 if (isl_ctx_last_error(ctx) == isl_error_abort) {
2817 fprintf(stderr, "Interrupted\n");
2818 isl_ctx_resume(ctx);
2819 isl_ctx_reset_error(ctx);
2820 }
2821 }
2822
2823 remove_signal_handler(ctx);
2824
2825 isl_printer_free(p);
2826 isl_hash_table_foreach(ctx, table, free_cb, NULL);
2827 isl_hash_table_free(ctx, table);
2828 isl_stream_free(s);
2829 isl_ctx_free(ctx);
2830
2831 return 0;
2832 }
lattice point enumeration library