2 * Copyright 2008-2009 Katholieke Universiteit Leuven
3 * Copyright 2010 INRIA Saclay
5 * Use of this software is governed by the GNU LGPLv2.1 license
7 * Written by Sven Verdoolaege, K.U.Leuven, Departement
8 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
9 * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
10 * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
16 #include <isl_ctx_private.h>
17 #include <isl_map_private.h>
20 #include <isl_stream_private.h>
22 #include "isl_polynomial_private.h"
23 #include <isl/union_map.h>
24 #include <isl_mat_private.h>
25 #include <isl_aff_private.h>
31 struct variable *next;
40 static struct vars *vars_new(struct isl_ctx *ctx)
43 v = isl_alloc_type(ctx, struct vars);
52 static void variable_free(struct variable *var)
55 struct variable *next = var->next;
62 static void vars_free(struct vars *v)
70 static void vars_drop(struct vars *v, int n)
81 struct variable *next = var->next;
89 static struct variable *variable_new(struct vars *v, const char *name, int len,
93 var = isl_calloc_type(v->ctx, struct variable);
96 var->name = strdup(name);
97 var->name[len] = '\0';
106 static int vars_pos(struct vars *v, const char *s, int len)
113 for (q = v->v; q; q = q->next) {
114 if (strncmp(q->name, s, len) == 0 && q->name[len] == '\0')
121 v->v = variable_new(v, s, len, v->n);
129 static int vars_add_anon(struct vars *v)
131 v->v = variable_new(v, "", 0, v->n);
140 static __isl_give isl_map *set_name(__isl_take isl_map *map,
141 enum isl_dim_type type, unsigned pos, char *name)
150 prime = strchr(name, '\'');
153 map = isl_map_set_dim_name(map, type, pos, name);
160 /* Obtain next token, with some preprocessing.
161 * In particular, evaluate expressions of the form x^y,
162 * with x and y values.
164 static struct isl_token *next_token(struct isl_stream *s)
166 struct isl_token *tok, *tok2;
168 tok = isl_stream_next_token(s);
169 if (!tok || tok->type != ISL_TOKEN_VALUE)
171 if (!isl_stream_eat_if_available(s, '^'))
173 tok2 = isl_stream_next_token(s);
174 if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
175 isl_stream_error(s, tok2, "expecting constant value");
179 isl_int_pow_ui(tok->u.v, tok->u.v, isl_int_get_ui(tok2->u.v));
181 isl_token_free(tok2);
185 isl_token_free(tok2);
189 static int accept_cst_factor(struct isl_stream *s, isl_int *f)
191 struct isl_token *tok;
194 if (!tok || tok->type != ISL_TOKEN_VALUE) {
195 isl_stream_error(s, tok, "expecting constant value");
199 isl_int_mul(*f, *f, tok->u.v);
203 if (isl_stream_eat_if_available(s, '*'))
204 return accept_cst_factor(s, f);
212 /* Given an affine expression aff, return an affine expression
213 * for aff % d, with d the next token on the stream, which is
214 * assumed to be a constant.
216 * We introduce an integer division q = [aff/d] and the result
217 * is set to aff - d q.
219 static __isl_give isl_pw_aff *affine_mod(struct isl_stream *s,
220 struct vars *v, __isl_take isl_pw_aff *aff)
222 struct isl_token *tok;
226 if (!tok || tok->type != ISL_TOKEN_VALUE) {
227 isl_stream_error(s, tok, "expecting constant value");
231 q = isl_pw_aff_copy(aff);
232 q = isl_pw_aff_scale_down(q, tok->u.v);
233 q = isl_pw_aff_floor(q);
234 q = isl_pw_aff_scale(q, tok->u.v);
236 aff = isl_pw_aff_sub(aff, q);
241 isl_pw_aff_free(aff);
246 static __isl_give isl_pw_aff *accept_affine(struct isl_stream *s,
247 __isl_take isl_space *dim, struct vars *v);
248 static __isl_give isl_pw_aff_list *accept_affine_list(struct isl_stream *s,
249 __isl_take isl_space *dim, struct vars *v);
251 static __isl_give isl_pw_aff *accept_minmax(struct isl_stream *s,
252 __isl_take isl_space *dim, struct vars *v)
254 struct isl_token *tok;
255 isl_pw_aff_list *list = NULL;
258 tok = isl_stream_next_token(s);
261 min = tok->type == ISL_TOKEN_MIN;
264 if (isl_stream_eat(s, '('))
267 list = accept_affine_list(s, isl_space_copy(dim), v);
271 if (isl_stream_eat(s, ')'))
275 return min ? isl_pw_aff_list_min(list) : isl_pw_aff_list_max(list);
278 isl_pw_aff_list_free(list);
282 static __isl_give isl_pw_aff *accept_div(struct isl_stream *s,
283 __isl_take isl_space *dim, struct vars *v)
285 struct isl_token *tok;
289 isl_pw_aff *pwaff = NULL;
291 if (isl_stream_eat_if_available(s, ISL_TOKEN_FLOORD))
293 else if (isl_stream_eat_if_available(s, ISL_TOKEN_CEILD))
296 if (isl_stream_eat(s, '('))
299 if (isl_stream_eat(s, '['))
301 if (isl_stream_eat_if_available(s, '('))
305 pwaff = accept_affine(s, isl_space_copy(dim), v);
308 if (isl_stream_eat(s, ','))
311 if (seen_paren && isl_stream_eat(s, ')'))
313 if (isl_stream_eat(s, '/'))
320 if (tok->type != ISL_TOKEN_VALUE) {
321 isl_stream_error(s, tok, "expected denominator");
322 isl_stream_push_token(s, tok);
325 isl_pw_aff_scale_down(pwaff, tok->u.v);
329 pwaff = isl_pw_aff_ceil(pwaff);
331 pwaff = isl_pw_aff_floor(pwaff);
334 if (isl_stream_eat(s, ')'))
337 if (isl_stream_eat(s, ']'))
345 isl_pw_aff_free(pwaff);
349 static __isl_give isl_pw_aff *accept_affine_factor(struct isl_stream *s,
350 __isl_take isl_space *dim, struct vars *v)
352 struct isl_token *tok = NULL;
353 isl_pw_aff *res = NULL;
357 isl_stream_error(s, NULL, "unexpected EOF");
361 if (tok->type == ISL_TOKEN_AFF) {
362 res = isl_pw_aff_copy(tok->u.pwaff);
364 } else if (tok->type == ISL_TOKEN_IDENT) {
366 int pos = vars_pos(v, tok->u.s, -1);
372 isl_stream_error(s, tok, "unknown identifier");
376 aff = isl_aff_zero_on_domain(isl_local_space_from_space(isl_space_copy(dim)));
379 isl_int_set_si(aff->v->el[2 + pos], 1);
380 res = isl_pw_aff_from_aff(aff);
382 } else if (tok->type == ISL_TOKEN_VALUE) {
383 if (isl_stream_eat_if_available(s, '*')) {
384 res = accept_affine_factor(s, isl_space_copy(dim), v);
385 res = isl_pw_aff_scale(res, tok->u.v);
389 ls = isl_local_space_from_space(isl_space_copy(dim));
390 aff = isl_aff_zero_on_domain(ls);
391 aff = isl_aff_add_constant(aff, tok->u.v);
392 res = isl_pw_aff_from_aff(aff);
395 } else if (tok->type == '(') {
398 res = accept_affine(s, isl_space_copy(dim), v);
401 if (isl_stream_eat(s, ')'))
403 } else if (tok->type == '[' ||
404 tok->type == ISL_TOKEN_FLOORD ||
405 tok->type == ISL_TOKEN_CEILD) {
406 isl_stream_push_token(s, tok);
408 res = accept_div(s, isl_space_copy(dim), v);
409 } else if (tok->type == ISL_TOKEN_MIN || tok->type == ISL_TOKEN_MAX) {
410 isl_stream_push_token(s, tok);
412 res = accept_minmax(s, isl_space_copy(dim), v);
414 isl_stream_error(s, tok, "expecting factor");
417 if (isl_stream_eat_if_available(s, '%') ||
418 isl_stream_eat_if_available(s, ISL_TOKEN_MOD)) {
420 return affine_mod(s, v, res);
422 if (isl_stream_eat_if_available(s, '*')) {
425 isl_int_set_si(f, 1);
426 if (accept_cst_factor(s, &f) < 0) {
430 res = isl_pw_aff_scale(res, f);
439 isl_pw_aff_free(res);
444 static __isl_give isl_pw_aff *add_cst(__isl_take isl_pw_aff *pwaff, isl_int v)
449 space = isl_pw_aff_get_domain_space(pwaff);
450 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
451 aff = isl_aff_add_constant(aff, v);
453 return isl_pw_aff_add(pwaff, isl_pw_aff_from_aff(aff));
456 static __isl_give isl_pw_aff *accept_affine(struct isl_stream *s,
457 __isl_take isl_space *dim, struct vars *v)
459 struct isl_token *tok = NULL;
464 ls = isl_local_space_from_space(isl_space_copy(dim));
465 res = isl_pw_aff_from_aff(isl_aff_zero_on_domain(ls));
472 isl_stream_error(s, NULL, "unexpected EOF");
475 if (tok->type == '-') {
480 if (tok->type == '(' || tok->type == '[' ||
481 tok->type == ISL_TOKEN_MIN || tok->type == ISL_TOKEN_MAX ||
482 tok->type == ISL_TOKEN_FLOORD ||
483 tok->type == ISL_TOKEN_CEILD ||
484 tok->type == ISL_TOKEN_IDENT ||
485 tok->type == ISL_TOKEN_AFF) {
487 isl_stream_push_token(s, tok);
489 term = accept_affine_factor(s, isl_space_copy(dim), v);
491 res = isl_pw_aff_sub(res, term);
493 res = isl_pw_aff_add(res, term);
497 } else if (tok->type == ISL_TOKEN_VALUE) {
499 isl_int_neg(tok->u.v, tok->u.v);
500 if (isl_stream_eat_if_available(s, '*') ||
501 isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
503 term = accept_affine_factor(s,
504 isl_space_copy(dim), v);
505 term = isl_pw_aff_scale(term, tok->u.v);
506 res = isl_pw_aff_add(res, term);
510 res = add_cst(res, tok->u.v);
514 isl_stream_error(s, tok, "unexpected isl_token");
515 isl_stream_push_token(s, tok);
516 isl_pw_aff_free(res);
523 if (tok && tok->type == '-') {
526 } else if (tok && tok->type == '+') {
529 } else if (tok && tok->type == ISL_TOKEN_VALUE &&
530 isl_int_is_neg(tok->u.v)) {
531 isl_stream_push_token(s, tok);
534 isl_stream_push_token(s, tok);
544 isl_pw_aff_free(res);
548 static int is_comparator(struct isl_token *tok)
566 static struct isl_map *read_disjuncts(struct isl_stream *s,
567 struct vars *v, __isl_take isl_map *map);
568 static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
569 __isl_take isl_space *dim, struct vars *v);
571 /* Accept a ternary operator, given the first argument.
573 static __isl_give isl_pw_aff *accept_ternary(struct isl_stream *s,
574 __isl_take isl_map *cond, struct vars *v)
577 isl_pw_aff *pwaff1 = NULL, *pwaff2 = NULL, *pa_cond;
582 if (isl_stream_eat(s, '?'))
585 dim = isl_space_wrap(isl_map_get_space(cond));
586 pwaff1 = accept_extended_affine(s, dim, v);
590 if (isl_stream_eat(s, ':'))
593 dim = isl_pw_aff_get_domain_space(pwaff1);
594 pwaff2 = accept_extended_affine(s, dim, v);
598 pa_cond = isl_set_indicator_function(isl_map_wrap(cond));
599 return isl_pw_aff_cond(pa_cond, pwaff1, pwaff2);
602 isl_pw_aff_free(pwaff1);
603 isl_pw_aff_free(pwaff2);
607 /* Accept an affine expression that may involve ternary operators.
608 * We first read an affine expression.
609 * If it is not followed by a comparison operator, we simply return it.
610 * Otherwise, we assume the affine epxression is part of the first
611 * argument of a ternary operator and try to parse that.
613 static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
614 __isl_take isl_space *dim, struct vars *v)
619 struct isl_token *tok;
620 int line = -1, col = -1;
623 tok = isl_stream_next_token(s);
627 isl_stream_push_token(s, tok);
630 pwaff = accept_affine(s, dim, v);
634 tok = isl_stream_next_token(s);
636 return isl_pw_aff_free(pwaff);
638 is_comp = is_comparator(tok);
639 isl_stream_push_token(s, tok);
643 tok = isl_token_new(s->ctx, line, col, 0);
645 return isl_pw_aff_free(pwaff);
646 tok->type = ISL_TOKEN_AFF;
647 tok->u.pwaff = pwaff;
649 space = isl_pw_aff_get_domain_space(pwaff);
650 cond = isl_map_universe(isl_space_unwrap(space));
652 isl_stream_push_token(s, tok);
654 cond = read_disjuncts(s, v, cond);
656 return accept_ternary(s, cond, v);
659 static __isl_give isl_map *read_var_def(struct isl_stream *s,
660 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v)
666 if (type == isl_dim_param)
667 pos = isl_map_dim(map, isl_dim_param);
669 pos = isl_map_dim(map, isl_dim_in);
670 if (type == isl_dim_out)
671 pos += isl_map_dim(map, isl_dim_out);
676 def = accept_extended_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
677 def_map = isl_map_from_pw_aff(def);
678 def_map = isl_map_equate(def_map, type, pos, isl_dim_out, 0);
679 def_map = isl_set_unwrap(isl_map_domain(def_map));
681 map = isl_map_intersect(map, def_map);
686 static __isl_give isl_map *read_var_list(struct isl_stream *s,
687 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v)
690 struct isl_token *tok;
692 if (isl_stream_next_token_is(s, ']'))
693 return isl_map_add_dims(map, type, 0);
695 while ((tok = next_token(s)) != NULL) {
698 if (tok->type == ISL_TOKEN_IDENT) {
700 int p = vars_pos(v, tok->u.s, -1);
707 map = isl_map_add_dims(map, type, 1);
708 map = set_name(map, type, i, v->v->name);
710 if (isl_stream_eat_if_available(s, '='))
711 map = read_var_def(s, map, type, v);
713 if (type == isl_dim_param) {
714 isl_stream_error(s, tok,
715 "expecting unique identifier");
718 isl_stream_push_token(s, tok);
720 if (vars_add_anon(v) < 0)
722 map = isl_map_add_dims(map, type, 1);
723 map = read_var_def(s, map, type, v);
726 tok = isl_stream_next_token(s);
727 if (tok && tok->type == ']' &&
728 isl_stream_next_token_is(s, '[')) {
730 tok = isl_stream_next_token(s);
731 } else if (!tok || tok->type != ',')
738 isl_stream_push_token(s, tok);
747 static __isl_give isl_pw_aff_list *accept_affine_list(struct isl_stream *s,
748 __isl_take isl_space *dim, struct vars *v)
751 isl_pw_aff_list *list;
752 struct isl_token *tok = NULL;
754 pwaff = accept_affine(s, isl_space_copy(dim), v);
755 list = isl_pw_aff_list_from_pw_aff(pwaff);
760 tok = isl_stream_next_token(s);
762 isl_stream_error(s, NULL, "unexpected EOF");
765 if (tok->type != ',') {
766 isl_stream_push_token(s, tok);
771 pwaff = accept_affine(s, isl_space_copy(dim), v);
772 list = isl_pw_aff_list_concat(list,
773 isl_pw_aff_list_from_pw_aff(pwaff));
782 isl_pw_aff_list_free(list);
786 static __isl_give isl_map *read_defined_var_list(struct isl_stream *s,
787 struct vars *v, __isl_take isl_map *map)
789 struct isl_token *tok;
791 while ((tok = isl_stream_next_token(s)) != NULL) {
795 if (tok->type != ISL_TOKEN_IDENT)
798 p = vars_pos(v, tok->u.s, -1);
802 isl_stream_error(s, tok, "expecting unique identifier");
806 map = isl_map_add_dims(map, isl_dim_out, 1);
809 tok = isl_stream_next_token(s);
810 if (tok && tok->type == '=') {
812 map = read_var_def(s, map, isl_dim_out, v);
813 tok = isl_stream_next_token(s);
816 if (!tok || tok->type != ',')
822 isl_stream_push_token(s, tok);
831 static int next_is_tuple(struct isl_stream *s)
833 struct isl_token *tok;
836 tok = isl_stream_next_token(s);
839 if (tok->type == '[') {
840 isl_stream_push_token(s, tok);
843 if (tok->type != ISL_TOKEN_IDENT && !tok->is_keyword) {
844 isl_stream_push_token(s, tok);
848 is_tuple = isl_stream_next_token_is(s, '[');
850 isl_stream_push_token(s, tok);
855 static __isl_give isl_map *read_tuple(struct isl_stream *s,
856 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v);
858 static __isl_give isl_set *read_nested_tuple(struct isl_stream *s,
859 __isl_take isl_map *map, struct vars *v)
861 map = read_tuple(s, map, isl_dim_in, v);
862 if (isl_stream_eat(s, ISL_TOKEN_TO))
864 map = read_tuple(s, map, isl_dim_out, v);
865 return isl_map_wrap(map);
871 static __isl_give isl_map *read_tuple(struct isl_stream *s,
872 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v)
874 struct isl_token *tok;
877 tok = isl_stream_next_token(s);
878 if (tok && (tok->type == ISL_TOKEN_IDENT || tok->is_keyword)) {
879 name = strdup(tok->u.s);
883 tok = isl_stream_next_token(s);
885 if (!tok || tok->type != '[') {
886 isl_stream_error(s, tok, "expecting '['");
890 if (type != isl_dim_param && next_is_tuple(s)) {
891 isl_space *dim = isl_map_get_space(map);
892 int nparam = isl_space_dim(dim, isl_dim_param);
893 int n_in = isl_space_dim(dim, isl_dim_in);
895 if (type == isl_dim_out) {
896 dim = isl_space_move_dims(dim, isl_dim_param, nparam,
897 isl_dim_in, 0, n_in);
898 dim = isl_space_params(dim);
900 nested = read_nested_tuple(s, isl_map_universe(dim), v);
901 if (type == isl_dim_in) {
902 nested = isl_map_reverse(nested);
903 map = isl_map_intersect_params(nested, map);
906 dim = isl_set_get_space(nested);
907 dim = isl_space_drop_dims(dim, isl_dim_param, nparam, n_in);
908 dim = isl_space_join(isl_map_get_space(map), dim);
909 set = isl_map_domain(map);
910 nested = isl_map_reset_space(nested, dim);
911 map = isl_map_intersect_domain(nested, set);
914 map = read_var_list(s, map, type, v);
915 tok = isl_stream_next_token(s);
916 if (!tok || tok->type != ']') {
917 isl_stream_error(s, tok, "expecting ']'");
923 map = isl_map_set_tuple_name(map, type, name);
935 static __isl_give isl_set *construct_constraints(
936 __isl_take isl_set *set, enum isl_token_type type,
937 __isl_keep isl_pw_aff_list *left, __isl_keep isl_pw_aff_list *right)
941 if (type == ISL_TOKEN_LE)
942 cond = isl_pw_aff_list_le_set(isl_pw_aff_list_copy(left),
943 isl_pw_aff_list_copy(right));
944 else if (type == ISL_TOKEN_GE)
945 cond = isl_pw_aff_list_ge_set(isl_pw_aff_list_copy(left),
946 isl_pw_aff_list_copy(right));
947 else if (type == ISL_TOKEN_LT)
948 cond = isl_pw_aff_list_lt_set(isl_pw_aff_list_copy(left),
949 isl_pw_aff_list_copy(right));
950 else if (type == ISL_TOKEN_GT)
951 cond = isl_pw_aff_list_gt_set(isl_pw_aff_list_copy(left),
952 isl_pw_aff_list_copy(right));
953 else if (type == ISL_TOKEN_NE)
954 cond = isl_pw_aff_list_ne_set(isl_pw_aff_list_copy(left),
955 isl_pw_aff_list_copy(right));
957 cond = isl_pw_aff_list_eq_set(isl_pw_aff_list_copy(left),
958 isl_pw_aff_list_copy(right));
960 return isl_set_intersect(set, cond);
963 static __isl_give isl_map *add_constraint(struct isl_stream *s,
964 struct vars *v, __isl_take isl_map *map)
966 struct isl_token *tok = NULL;
967 isl_pw_aff_list *list1 = NULL, *list2 = NULL;
970 set = isl_map_wrap(map);
971 list1 = accept_affine_list(s, isl_set_get_space(set), v);
974 tok = isl_stream_next_token(s);
975 if (!is_comparator(tok)) {
976 isl_stream_error(s, tok, "missing operator");
978 isl_stream_push_token(s, tok);
983 list2 = accept_affine_list(s, isl_set_get_space(set), v);
987 set = construct_constraints(set, tok->type, list1, list2);
989 isl_pw_aff_list_free(list1);
992 tok = isl_stream_next_token(s);
993 if (!is_comparator(tok)) {
995 isl_stream_push_token(s, tok);
999 isl_pw_aff_list_free(list1);
1001 return isl_set_unwrap(set);
1004 isl_token_free(tok);
1005 isl_pw_aff_list_free(list1);
1006 isl_pw_aff_list_free(list2);
1011 static __isl_give isl_map *read_exists(struct isl_stream *s,
1012 struct vars *v, __isl_take isl_map *map)
1015 int seen_paren = isl_stream_eat_if_available(s, '(');
1017 map = isl_map_from_domain(isl_map_wrap(map));
1018 map = read_defined_var_list(s, v, map);
1020 if (isl_stream_eat(s, ':'))
1023 map = read_disjuncts(s, v, map);
1024 map = isl_set_unwrap(isl_map_domain(map));
1026 vars_drop(v, v->n - n);
1027 if (seen_paren && isl_stream_eat(s, ')'))
1036 /* Parse an expression between parentheses and push the result
1037 * back on the stream.
1039 * The parsed expression may be either an affine expression
1040 * or a condition. The first type is pushed onto the stream
1041 * as an isl_pw_aff, while the second is pushed as an isl_map.
1043 * If the initial token indicates the start of a condition,
1044 * we parse it as such.
1045 * Otherwise, we first parse an affine expression and push
1046 * that onto the stream. If the affine expression covers the
1047 * entire expression between parentheses, we return.
1048 * Otherwise, we assume that the affine expression is the
1049 * start of a condition and continue parsing.
1051 static int resolve_paren_expr(struct isl_stream *s,
1052 struct vars *v, __isl_take isl_map *map)
1054 struct isl_token *tok, *tok2;
1058 tok = isl_stream_next_token(s);
1059 if (!tok || tok->type != '(')
1062 if (isl_stream_next_token_is(s, '('))
1063 if (resolve_paren_expr(s, v, isl_map_copy(map)))
1066 if (isl_stream_next_token_is(s, ISL_TOKEN_EXISTS) ||
1067 isl_stream_next_token_is(s, ISL_TOKEN_TRUE) ||
1068 isl_stream_next_token_is(s, ISL_TOKEN_FALSE) ||
1069 isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1070 map = read_disjuncts(s, v, map);
1071 if (isl_stream_eat(s, ')'))
1073 tok->type = ISL_TOKEN_MAP;
1075 isl_stream_push_token(s, tok);
1079 tok2 = isl_stream_next_token(s);
1084 isl_stream_push_token(s, tok2);
1086 pwaff = accept_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
1090 tok2 = isl_token_new(s->ctx, line, col, 0);
1093 tok2->type = ISL_TOKEN_AFF;
1094 tok2->u.pwaff = pwaff;
1096 if (isl_stream_eat_if_available(s, ')')) {
1097 isl_stream_push_token(s, tok2);
1098 isl_token_free(tok);
1103 isl_stream_push_token(s, tok2);
1105 map = read_disjuncts(s, v, map);
1106 if (isl_stream_eat(s, ')'))
1109 tok->type = ISL_TOKEN_MAP;
1111 isl_stream_push_token(s, tok);
1115 isl_pw_aff_free(pwaff);
1117 isl_token_free(tok);
1122 static __isl_give isl_map *read_conjunct(struct isl_stream *s,
1123 struct vars *v, __isl_take isl_map *map)
1125 if (isl_stream_next_token_is(s, '('))
1126 if (resolve_paren_expr(s, v, isl_map_copy(map)))
1129 if (isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1130 struct isl_token *tok;
1131 tok = isl_stream_next_token(s);
1135 map = isl_map_copy(tok->u.map);
1136 isl_token_free(tok);
1140 if (isl_stream_eat_if_available(s, ISL_TOKEN_EXISTS))
1141 return read_exists(s, v, map);
1143 if (isl_stream_eat_if_available(s, ISL_TOKEN_TRUE))
1146 if (isl_stream_eat_if_available(s, ISL_TOKEN_FALSE)) {
1147 isl_space *dim = isl_map_get_space(map);
1149 return isl_map_empty(dim);
1152 return add_constraint(s, v, map);
1158 static __isl_give isl_map *read_conjuncts(struct isl_stream *s,
1159 struct vars *v, __isl_take isl_map *map)
1164 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1165 res = read_conjunct(s, v, isl_map_copy(map));
1167 res = isl_map_subtract(isl_map_copy(map), res);
1169 while (isl_stream_eat_if_available(s, ISL_TOKEN_AND)) {
1172 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1173 res_i = read_conjunct(s, v, isl_map_copy(map));
1175 res = isl_map_subtract(res, res_i);
1177 res = isl_map_intersect(res, res_i);
1184 static struct isl_map *read_disjuncts(struct isl_stream *s,
1185 struct vars *v, __isl_take isl_map *map)
1189 if (isl_stream_next_token_is(s, '}')) {
1190 isl_space *dim = isl_map_get_space(map);
1192 return isl_map_universe(dim);
1195 res = read_conjuncts(s, v, isl_map_copy(map));
1196 while (isl_stream_eat_if_available(s, ISL_TOKEN_OR)) {
1199 res_i = read_conjuncts(s, v, isl_map_copy(map));
1200 res = isl_map_union(res, res_i);
1207 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map *bmap, int pos)
1209 if (pos < isl_basic_map_dim(bmap, isl_dim_out))
1210 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1211 isl_basic_map_dim(bmap, isl_dim_in) + pos;
1212 pos -= isl_basic_map_dim(bmap, isl_dim_out);
1214 if (pos < isl_basic_map_dim(bmap, isl_dim_in))
1215 return 1 + isl_basic_map_dim(bmap, isl_dim_param) + pos;
1216 pos -= isl_basic_map_dim(bmap, isl_dim_in);
1218 if (pos < isl_basic_map_dim(bmap, isl_dim_div))
1219 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1220 isl_basic_map_dim(bmap, isl_dim_in) +
1221 isl_basic_map_dim(bmap, isl_dim_out) + pos;
1222 pos -= isl_basic_map_dim(bmap, isl_dim_div);
1224 if (pos < isl_basic_map_dim(bmap, isl_dim_param))
1230 static __isl_give isl_basic_map *basic_map_read_polylib_constraint(
1231 struct isl_stream *s, __isl_take isl_basic_map *bmap)
1234 struct isl_token *tok;
1244 nparam = isl_basic_map_dim(bmap, isl_dim_param);
1245 dim = isl_basic_map_dim(bmap, isl_dim_out);
1247 tok = isl_stream_next_token(s);
1248 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1249 isl_stream_error(s, tok, "expecting coefficient");
1251 isl_stream_push_token(s, tok);
1254 if (!tok->on_new_line) {
1255 isl_stream_error(s, tok, "coefficient should appear on new line");
1256 isl_stream_push_token(s, tok);
1260 type = isl_int_get_si(tok->u.v);
1261 isl_token_free(tok);
1263 isl_assert(s->ctx, type == 0 || type == 1, goto error);
1265 k = isl_basic_map_alloc_equality(bmap);
1268 k = isl_basic_map_alloc_inequality(bmap);
1274 for (j = 0; j < 1 + isl_basic_map_total_dim(bmap); ++j) {
1276 tok = isl_stream_next_token(s);
1277 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1278 isl_stream_error(s, tok, "expecting coefficient");
1280 isl_stream_push_token(s, tok);
1283 if (tok->on_new_line) {
1284 isl_stream_error(s, tok,
1285 "coefficient should not appear on new line");
1286 isl_stream_push_token(s, tok);
1289 pos = polylib_pos_to_isl_pos(bmap, j);
1290 isl_int_set(c[pos], tok->u.v);
1291 isl_token_free(tok);
1296 isl_basic_map_free(bmap);
1300 static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s)
1303 struct isl_token *tok;
1304 struct isl_token *tok2;
1307 unsigned in = 0, out, local = 0;
1308 struct isl_basic_map *bmap = NULL;
1311 tok = isl_stream_next_token(s);
1313 isl_stream_error(s, NULL, "unexpected EOF");
1316 tok2 = isl_stream_next_token(s);
1318 isl_token_free(tok);
1319 isl_stream_error(s, NULL, "unexpected EOF");
1322 if (tok->type != ISL_TOKEN_VALUE || tok2->type != ISL_TOKEN_VALUE) {
1323 isl_stream_push_token(s, tok2);
1324 isl_stream_push_token(s, tok);
1325 isl_stream_error(s, NULL,
1326 "expecting constraint matrix dimensions");
1329 n_row = isl_int_get_si(tok->u.v);
1330 n_col = isl_int_get_si(tok2->u.v);
1331 on_new_line = tok2->on_new_line;
1332 isl_token_free(tok2);
1333 isl_token_free(tok);
1334 isl_assert(s->ctx, !on_new_line, return NULL);
1335 isl_assert(s->ctx, n_row >= 0, return NULL);
1336 isl_assert(s->ctx, n_col >= 2 + nparam, return NULL);
1337 tok = isl_stream_next_token_on_same_line(s);
1339 if (tok->type != ISL_TOKEN_VALUE) {
1340 isl_stream_error(s, tok,
1341 "expecting number of output dimensions");
1342 isl_stream_push_token(s, tok);
1345 out = isl_int_get_si(tok->u.v);
1346 isl_token_free(tok);
1348 tok = isl_stream_next_token_on_same_line(s);
1349 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1350 isl_stream_error(s, tok,
1351 "expecting number of input dimensions");
1353 isl_stream_push_token(s, tok);
1356 in = isl_int_get_si(tok->u.v);
1357 isl_token_free(tok);
1359 tok = isl_stream_next_token_on_same_line(s);
1360 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1361 isl_stream_error(s, tok,
1362 "expecting number of existentials");
1364 isl_stream_push_token(s, tok);
1367 local = isl_int_get_si(tok->u.v);
1368 isl_token_free(tok);
1370 tok = isl_stream_next_token_on_same_line(s);
1371 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1372 isl_stream_error(s, tok,
1373 "expecting number of parameters");
1375 isl_stream_push_token(s, tok);
1378 nparam = isl_int_get_si(tok->u.v);
1379 isl_token_free(tok);
1380 if (n_col != 1 + out + in + local + nparam + 1) {
1381 isl_stream_error(s, NULL,
1382 "dimensions don't match");
1386 out = n_col - 2 - nparam;
1387 bmap = isl_basic_map_alloc(s->ctx, nparam, in, out, local, n_row, n_row);
1391 for (i = 0; i < local; ++i) {
1392 int k = isl_basic_map_alloc_div(bmap);
1395 isl_seq_clr(bmap->div[k], 1 + 1 + nparam + in + out + local);
1398 for (i = 0; i < n_row; ++i)
1399 bmap = basic_map_read_polylib_constraint(s, bmap);
1401 tok = isl_stream_next_token_on_same_line(s);
1403 isl_stream_error(s, tok, "unexpected extra token on line");
1404 isl_stream_push_token(s, tok);
1408 bmap = isl_basic_map_simplify(bmap);
1409 bmap = isl_basic_map_finalize(bmap);
1412 isl_basic_map_free(bmap);
1416 static struct isl_map *map_read_polylib(struct isl_stream *s)
1418 struct isl_token *tok;
1419 struct isl_token *tok2;
1421 struct isl_map *map;
1423 tok = isl_stream_next_token(s);
1425 isl_stream_error(s, NULL, "unexpected EOF");
1428 tok2 = isl_stream_next_token_on_same_line(s);
1429 if (tok2 && tok2->type == ISL_TOKEN_VALUE) {
1430 isl_stream_push_token(s, tok2);
1431 isl_stream_push_token(s, tok);
1432 return isl_map_from_basic_map(basic_map_read_polylib(s));
1435 isl_stream_error(s, tok2, "unexpected token");
1436 isl_stream_push_token(s, tok2);
1437 isl_stream_push_token(s, tok);
1440 n = isl_int_get_si(tok->u.v);
1441 isl_token_free(tok);
1443 isl_assert(s->ctx, n >= 1, return NULL);
1445 map = isl_map_from_basic_map(basic_map_read_polylib(s));
1447 for (i = 1; map && i < n; ++i)
1448 map = isl_map_union(map,
1449 isl_map_from_basic_map(basic_map_read_polylib(s)));
1454 static int optional_power(struct isl_stream *s)
1457 struct isl_token *tok;
1459 tok = isl_stream_next_token(s);
1462 if (tok->type != '^') {
1463 isl_stream_push_token(s, tok);
1466 isl_token_free(tok);
1467 tok = isl_stream_next_token(s);
1468 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1469 isl_stream_error(s, tok, "expecting exponent");
1471 isl_stream_push_token(s, tok);
1474 pow = isl_int_get_si(tok->u.v);
1475 isl_token_free(tok);
1479 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1480 __isl_keep isl_map *map, struct vars *v);
1482 static __isl_give isl_pw_qpolynomial *read_factor(struct isl_stream *s,
1483 __isl_keep isl_map *map, struct vars *v)
1485 isl_pw_qpolynomial *pwqp;
1486 struct isl_token *tok;
1488 tok = next_token(s);
1490 isl_stream_error(s, NULL, "unexpected EOF");
1493 if (tok->type == '(') {
1496 isl_token_free(tok);
1497 pwqp = read_term(s, map, v);
1500 if (isl_stream_eat(s, ')'))
1502 pow = optional_power(s);
1503 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1504 } else if (tok->type == ISL_TOKEN_VALUE) {
1505 struct isl_token *tok2;
1506 tok2 = isl_stream_next_token(s);
1507 isl_qpolynomial *qp;
1508 if (tok2 && tok2->type == '/') {
1509 isl_token_free(tok2);
1510 tok2 = next_token(s);
1511 if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
1512 isl_stream_error(s, tok2, "expected denominator");
1513 isl_token_free(tok);
1514 isl_token_free(tok2);
1517 qp = isl_qpolynomial_rat_cst_on_domain(isl_map_get_space(map),
1518 tok->u.v, tok2->u.v);
1519 isl_token_free(tok2);
1521 isl_stream_push_token(s, tok2);
1522 qp = isl_qpolynomial_cst_on_domain(isl_map_get_space(map),
1525 isl_token_free(tok);
1526 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1527 } else if (tok->type == ISL_TOKEN_INFTY) {
1528 isl_qpolynomial *qp;
1529 isl_token_free(tok);
1530 qp = isl_qpolynomial_infty_on_domain(isl_map_get_space(map));
1531 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1532 } else if (tok->type == ISL_TOKEN_NAN) {
1533 isl_qpolynomial *qp;
1534 isl_token_free(tok);
1535 qp = isl_qpolynomial_nan_on_domain(isl_map_get_space(map));
1536 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1537 } else if (tok->type == ISL_TOKEN_IDENT) {
1539 int pos = vars_pos(v, tok->u.s, -1);
1541 isl_qpolynomial *qp;
1543 isl_token_free(tok);
1547 vars_drop(v, v->n - n);
1548 isl_stream_error(s, tok, "unknown identifier");
1549 isl_token_free(tok);
1552 isl_token_free(tok);
1553 pow = optional_power(s);
1554 qp = isl_qpolynomial_var_pow_on_domain(isl_map_get_space(map), pos, pow);
1555 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1556 } else if (tok->type == '[') {
1560 isl_stream_push_token(s, tok);
1561 pwaff = accept_div(s, isl_map_get_space(map), v);
1562 pow = optional_power(s);
1563 pwqp = isl_pw_qpolynomial_from_pw_aff(pwaff);
1564 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1565 } else if (tok->type == '-') {
1566 isl_token_free(tok);
1567 pwqp = read_factor(s, map, v);
1568 pwqp = isl_pw_qpolynomial_neg(pwqp);
1570 isl_stream_error(s, tok, "unexpected isl_token");
1571 isl_stream_push_token(s, tok);
1575 if (isl_stream_eat_if_available(s, '*') ||
1576 isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
1577 isl_pw_qpolynomial *pwqp2;
1579 pwqp2 = read_factor(s, map, v);
1580 pwqp = isl_pw_qpolynomial_mul(pwqp, pwqp2);
1585 isl_pw_qpolynomial_free(pwqp);
1589 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1590 __isl_keep isl_map *map, struct vars *v)
1592 struct isl_token *tok;
1593 isl_pw_qpolynomial *pwqp;
1595 pwqp = read_factor(s, map, v);
1598 tok = next_token(s);
1602 if (tok->type == '+') {
1603 isl_pw_qpolynomial *pwqp2;
1605 isl_token_free(tok);
1606 pwqp2 = read_factor(s, map, v);
1607 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1608 } else if (tok->type == '-') {
1609 isl_pw_qpolynomial *pwqp2;
1611 isl_token_free(tok);
1612 pwqp2 = read_factor(s, map, v);
1613 pwqp = isl_pw_qpolynomial_sub(pwqp, pwqp2);
1614 } else if (tok->type == ISL_TOKEN_VALUE &&
1615 isl_int_is_neg(tok->u.v)) {
1616 isl_pw_qpolynomial *pwqp2;
1618 isl_stream_push_token(s, tok);
1619 pwqp2 = read_factor(s, map, v);
1620 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1622 isl_stream_push_token(s, tok);
1630 static __isl_give isl_map *read_optional_disjuncts(struct isl_stream *s,
1631 __isl_take isl_map *map, struct vars *v)
1633 struct isl_token *tok;
1635 tok = isl_stream_next_token(s);
1637 isl_stream_error(s, NULL, "unexpected EOF");
1640 if (tok->type == ':' ||
1641 (tok->type == ISL_TOKEN_OR && !strcmp(tok->u.s, "|"))) {
1642 isl_token_free(tok);
1643 map = read_disjuncts(s, v, map);
1645 isl_stream_push_token(s, tok);
1653 static struct isl_obj obj_read_poly(struct isl_stream *s,
1654 __isl_take isl_map *map, struct vars *v, int n)
1656 struct isl_obj obj = { isl_obj_pw_qpolynomial, NULL };
1657 isl_pw_qpolynomial *pwqp;
1658 struct isl_set *set;
1660 pwqp = read_term(s, map, v);
1661 map = read_optional_disjuncts(s, map, v);
1662 set = isl_map_range(map);
1664 pwqp = isl_pw_qpolynomial_intersect_domain(pwqp, set);
1666 vars_drop(v, v->n - n);
1672 static struct isl_obj obj_read_poly_or_fold(struct isl_stream *s,
1673 __isl_take isl_set *set, struct vars *v, int n)
1675 struct isl_obj obj = { isl_obj_pw_qpolynomial_fold, NULL };
1676 isl_pw_qpolynomial *pwqp;
1677 isl_pw_qpolynomial_fold *pwf = NULL;
1679 if (!isl_stream_eat_if_available(s, ISL_TOKEN_MAX))
1680 return obj_read_poly(s, set, v, n);
1682 if (isl_stream_eat(s, '('))
1685 pwqp = read_term(s, set, v);
1686 pwf = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max, pwqp);
1688 while (isl_stream_eat_if_available(s, ',')) {
1689 isl_pw_qpolynomial_fold *pwf_i;
1690 pwqp = read_term(s, set, v);
1691 pwf_i = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max,
1693 pwf = isl_pw_qpolynomial_fold_fold(pwf, pwf_i);
1696 if (isl_stream_eat(s, ')'))
1699 set = read_optional_disjuncts(s, set, v);
1700 pwf = isl_pw_qpolynomial_fold_intersect_domain(pwf, set);
1702 vars_drop(v, v->n - n);
1708 isl_pw_qpolynomial_fold_free(pwf);
1709 obj.type = isl_obj_none;
1713 static int is_rational(struct isl_stream *s)
1715 struct isl_token *tok;
1717 tok = isl_stream_next_token(s);
1720 if (tok->type == ISL_TOKEN_RAT && isl_stream_next_token_is(s, ':')) {
1721 isl_token_free(tok);
1722 isl_stream_eat(s, ':');
1726 isl_stream_push_token(s, tok);
1731 static struct isl_obj obj_read_body(struct isl_stream *s,
1732 __isl_take isl_map *map, struct vars *v)
1734 struct isl_token *tok;
1735 struct isl_obj obj = { isl_obj_set, NULL };
1739 map = isl_map_set_rational(map);
1741 if (isl_stream_next_token_is(s, ':')) {
1742 obj.type = isl_obj_set;
1743 obj.v = read_optional_disjuncts(s, map, v);
1747 if (!next_is_tuple(s))
1748 return obj_read_poly_or_fold(s, map, v, n);
1750 map = read_tuple(s, map, isl_dim_in, v);
1753 tok = isl_stream_next_token(s);
1754 if (tok && tok->type == ISL_TOKEN_TO) {
1755 obj.type = isl_obj_map;
1756 isl_token_free(tok);
1757 if (!next_is_tuple(s)) {
1758 isl_set *set = isl_map_domain(map);
1759 return obj_read_poly_or_fold(s, set, v, n);
1761 map = read_tuple(s, map, isl_dim_out, v);
1765 map = isl_map_reverse(map);
1767 isl_stream_push_token(s, tok);
1770 map = read_optional_disjuncts(s, map, v);
1772 vars_drop(v, v->n - n);
1778 obj.type = isl_obj_none;
1782 static struct isl_obj to_union(isl_ctx *ctx, struct isl_obj obj)
1784 if (obj.type == isl_obj_map) {
1785 obj.v = isl_union_map_from_map(obj.v);
1786 obj.type = isl_obj_union_map;
1787 } else if (obj.type == isl_obj_set) {
1788 obj.v = isl_union_set_from_set(obj.v);
1789 obj.type = isl_obj_union_set;
1790 } else if (obj.type == isl_obj_pw_qpolynomial) {
1791 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
1792 obj.type = isl_obj_union_pw_qpolynomial;
1793 } else if (obj.type == isl_obj_pw_qpolynomial_fold) {
1794 obj.v = isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj.v);
1795 obj.type = isl_obj_union_pw_qpolynomial_fold;
1797 isl_assert(ctx, 0, goto error);
1800 obj.type->free(obj.v);
1801 obj.type = isl_obj_none;
1805 static struct isl_obj obj_add(struct isl_ctx *ctx,
1806 struct isl_obj obj1, struct isl_obj obj2)
1808 if (obj1.type == isl_obj_set && obj2.type == isl_obj_union_set)
1809 obj1 = to_union(ctx, obj1);
1810 if (obj1.type == isl_obj_union_set && obj2.type == isl_obj_set)
1811 obj2 = to_union(ctx, obj2);
1812 if (obj1.type == isl_obj_map && obj2.type == isl_obj_union_map)
1813 obj1 = to_union(ctx, obj1);
1814 if (obj1.type == isl_obj_union_map && obj2.type == isl_obj_map)
1815 obj2 = to_union(ctx, obj2);
1816 if (obj1.type == isl_obj_pw_qpolynomial &&
1817 obj2.type == isl_obj_union_pw_qpolynomial)
1818 obj1 = to_union(ctx, obj1);
1819 if (obj1.type == isl_obj_union_pw_qpolynomial &&
1820 obj2.type == isl_obj_pw_qpolynomial)
1821 obj2 = to_union(ctx, obj2);
1822 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
1823 obj2.type == isl_obj_union_pw_qpolynomial_fold)
1824 obj1 = to_union(ctx, obj1);
1825 if (obj1.type == isl_obj_union_pw_qpolynomial_fold &&
1826 obj2.type == isl_obj_pw_qpolynomial_fold)
1827 obj2 = to_union(ctx, obj2);
1828 isl_assert(ctx, obj1.type == obj2.type, goto error);
1829 if (obj1.type == isl_obj_map && !isl_map_has_equal_space(obj1.v, obj2.v)) {
1830 obj1 = to_union(ctx, obj1);
1831 obj2 = to_union(ctx, obj2);
1833 if (obj1.type == isl_obj_set && !isl_set_has_equal_space(obj1.v, obj2.v)) {
1834 obj1 = to_union(ctx, obj1);
1835 obj2 = to_union(ctx, obj2);
1837 if (obj1.type == isl_obj_pw_qpolynomial &&
1838 !isl_pw_qpolynomial_has_equal_space(obj1.v, obj2.v)) {
1839 obj1 = to_union(ctx, obj1);
1840 obj2 = to_union(ctx, obj2);
1842 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
1843 !isl_pw_qpolynomial_fold_has_equal_space(obj1.v, obj2.v)) {
1844 obj1 = to_union(ctx, obj1);
1845 obj2 = to_union(ctx, obj2);
1847 obj1.v = obj1.type->add(obj1.v, obj2.v);
1850 obj1.type->free(obj1.v);
1851 obj2.type->free(obj2.v);
1852 obj1.type = isl_obj_none;
1857 static struct isl_obj obj_read(struct isl_stream *s)
1859 isl_map *map = NULL;
1860 struct isl_token *tok;
1861 struct vars *v = NULL;
1862 struct isl_obj obj = { isl_obj_set, NULL };
1864 tok = next_token(s);
1866 isl_stream_error(s, NULL, "unexpected EOF");
1869 if (tok->type == ISL_TOKEN_VALUE) {
1870 struct isl_token *tok2;
1871 struct isl_map *map;
1873 tok2 = isl_stream_next_token(s);
1874 if (!tok2 || tok2->type != ISL_TOKEN_VALUE ||
1875 isl_int_is_neg(tok2->u.v)) {
1877 isl_stream_push_token(s, tok2);
1878 obj.type = isl_obj_int;
1879 obj.v = isl_int_obj_alloc(s->ctx, tok->u.v);
1880 isl_token_free(tok);
1883 isl_stream_push_token(s, tok2);
1884 isl_stream_push_token(s, tok);
1885 map = map_read_polylib(s);
1888 if (isl_map_may_be_set(map))
1889 obj.v = isl_map_range(map);
1891 obj.type = isl_obj_map;
1896 v = vars_new(s->ctx);
1898 isl_stream_push_token(s, tok);
1901 map = isl_map_universe(isl_space_params_alloc(s->ctx, 0));
1902 if (tok->type == '[') {
1903 isl_stream_push_token(s, tok);
1904 map = read_tuple(s, map, isl_dim_param, v);
1907 tok = isl_stream_next_token(s);
1908 if (!tok || tok->type != ISL_TOKEN_TO) {
1909 isl_stream_error(s, tok, "expecting '->'");
1911 isl_stream_push_token(s, tok);
1914 isl_token_free(tok);
1915 tok = isl_stream_next_token(s);
1917 if (!tok || tok->type != '{') {
1918 isl_stream_error(s, tok, "expecting '{'");
1920 isl_stream_push_token(s, tok);
1923 isl_token_free(tok);
1925 tok = isl_stream_next_token(s);
1928 else if (tok->type == ISL_TOKEN_IDENT && !strcmp(tok->u.s, "Sym")) {
1929 isl_token_free(tok);
1930 if (isl_stream_eat(s, '='))
1932 map = read_tuple(s, map, isl_dim_param, v);
1935 } else if (tok->type == '}') {
1936 obj.type = isl_obj_union_set;
1937 obj.v = isl_union_set_empty(isl_map_get_space(map));
1938 isl_token_free(tok);
1941 isl_stream_push_token(s, tok);
1946 o = obj_read_body(s, isl_map_copy(map), v);
1947 if (o.type == isl_obj_none || !o.v)
1952 obj = obj_add(s->ctx, obj, o);
1953 if (obj.type == isl_obj_none || !obj.v)
1956 tok = isl_stream_next_token(s);
1957 if (!tok || tok->type != ';')
1959 isl_token_free(tok);
1960 if (isl_stream_next_token_is(s, '}')) {
1961 tok = isl_stream_next_token(s);
1966 if (tok && tok->type == '}') {
1967 isl_token_free(tok);
1969 isl_stream_error(s, tok, "unexpected isl_token");
1971 isl_token_free(tok);
1981 obj.type->free(obj.v);
1988 struct isl_obj isl_stream_read_obj(struct isl_stream *s)
1993 __isl_give isl_map *isl_stream_read_map(struct isl_stream *s)
1999 isl_assert(s->ctx, obj.type == isl_obj_map ||
2000 obj.type == isl_obj_set, goto error);
2004 obj.type->free(obj.v);
2008 __isl_give isl_set *isl_stream_read_set(struct isl_stream *s)
2014 if (obj.type == isl_obj_map && isl_map_may_be_set(obj.v)) {
2015 obj.v = isl_map_range(obj.v);
2016 obj.type = isl_obj_set;
2018 isl_assert(s->ctx, obj.type == isl_obj_set, goto error);
2023 obj.type->free(obj.v);
2027 __isl_give isl_union_map *isl_stream_read_union_map(struct isl_stream *s)
2032 if (obj.type == isl_obj_map) {
2033 obj.type = isl_obj_union_map;
2034 obj.v = isl_union_map_from_map(obj.v);
2036 if (obj.type == isl_obj_set) {
2037 obj.type = isl_obj_union_set;
2038 obj.v = isl_union_set_from_set(obj.v);
2041 isl_assert(s->ctx, obj.type == isl_obj_union_map ||
2042 obj.type == isl_obj_union_set, goto error);
2046 obj.type->free(obj.v);
2050 __isl_give isl_union_set *isl_stream_read_union_set(struct isl_stream *s)
2055 if (obj.type == isl_obj_set) {
2056 obj.type = isl_obj_union_set;
2057 obj.v = isl_union_set_from_set(obj.v);
2060 isl_assert(s->ctx, obj.type == isl_obj_union_set, goto error);
2064 obj.type->free(obj.v);
2068 static __isl_give isl_basic_map *basic_map_read(struct isl_stream *s)
2071 struct isl_map *map;
2072 struct isl_basic_map *bmap;
2079 isl_assert(map->ctx, map->n <= 1, goto error);
2082 bmap = isl_basic_map_empty_like_map(map);
2084 bmap = isl_basic_map_copy(map->p[0]);
2094 static __isl_give isl_basic_set *basic_set_read(struct isl_stream *s)
2096 isl_basic_map *bmap;
2097 bmap = basic_map_read(s);
2100 if (!isl_basic_map_may_be_set(bmap))
2101 isl_die(s->ctx, isl_error_invalid,
2102 "input is not a set", goto error);
2103 return isl_basic_map_range(bmap);
2105 isl_basic_map_free(bmap);
2109 __isl_give isl_basic_map *isl_basic_map_read_from_file(isl_ctx *ctx,
2112 struct isl_basic_map *bmap;
2113 struct isl_stream *s = isl_stream_new_file(ctx, input);
2116 bmap = basic_map_read(s);
2121 __isl_give isl_basic_set *isl_basic_set_read_from_file(isl_ctx *ctx,
2124 isl_basic_set *bset;
2125 struct isl_stream *s = isl_stream_new_file(ctx, input);
2128 bset = basic_set_read(s);
2133 struct isl_basic_map *isl_basic_map_read_from_str(struct isl_ctx *ctx,
2136 struct isl_basic_map *bmap;
2137 struct isl_stream *s = isl_stream_new_str(ctx, str);
2140 bmap = basic_map_read(s);
2145 struct isl_basic_set *isl_basic_set_read_from_str(struct isl_ctx *ctx,
2148 isl_basic_set *bset;
2149 struct isl_stream *s = isl_stream_new_str(ctx, str);
2152 bset = basic_set_read(s);
2157 __isl_give isl_map *isl_map_read_from_file(struct isl_ctx *ctx,
2160 struct isl_map *map;
2161 struct isl_stream *s = isl_stream_new_file(ctx, input);
2164 map = isl_stream_read_map(s);
2169 __isl_give isl_map *isl_map_read_from_str(struct isl_ctx *ctx,
2172 struct isl_map *map;
2173 struct isl_stream *s = isl_stream_new_str(ctx, str);
2176 map = isl_stream_read_map(s);
2181 __isl_give isl_set *isl_set_read_from_file(struct isl_ctx *ctx,
2185 struct isl_stream *s = isl_stream_new_file(ctx, input);
2188 set = isl_stream_read_set(s);
2193 struct isl_set *isl_set_read_from_str(struct isl_ctx *ctx,
2197 struct isl_stream *s = isl_stream_new_str(ctx, str);
2200 set = isl_stream_read_set(s);
2205 __isl_give isl_union_map *isl_union_map_read_from_file(isl_ctx *ctx,
2208 isl_union_map *umap;
2209 struct isl_stream *s = isl_stream_new_file(ctx, input);
2212 umap = isl_stream_read_union_map(s);
2217 __isl_give isl_union_map *isl_union_map_read_from_str(struct isl_ctx *ctx,
2220 isl_union_map *umap;
2221 struct isl_stream *s = isl_stream_new_str(ctx, str);
2224 umap = isl_stream_read_union_map(s);
2229 __isl_give isl_union_set *isl_union_set_read_from_file(isl_ctx *ctx,
2232 isl_union_set *uset;
2233 struct isl_stream *s = isl_stream_new_file(ctx, input);
2236 uset = isl_stream_read_union_set(s);
2241 __isl_give isl_union_set *isl_union_set_read_from_str(struct isl_ctx *ctx,
2244 isl_union_set *uset;
2245 struct isl_stream *s = isl_stream_new_str(ctx, str);
2248 uset = isl_stream_read_union_set(s);
2253 static __isl_give isl_vec *isl_vec_read_polylib(struct isl_stream *s)
2255 struct isl_vec *vec = NULL;
2256 struct isl_token *tok;
2260 tok = isl_stream_next_token(s);
2261 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2262 isl_stream_error(s, tok, "expecting vector length");
2266 size = isl_int_get_si(tok->u.v);
2267 isl_token_free(tok);
2269 vec = isl_vec_alloc(s->ctx, size);
2271 for (j = 0; j < size; ++j) {
2272 tok = isl_stream_next_token(s);
2273 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2274 isl_stream_error(s, tok, "expecting constant value");
2277 isl_int_set(vec->el[j], tok->u.v);
2278 isl_token_free(tok);
2283 isl_token_free(tok);
2288 static __isl_give isl_vec *vec_read(struct isl_stream *s)
2290 return isl_vec_read_polylib(s);
2293 __isl_give isl_vec *isl_vec_read_from_file(isl_ctx *ctx, FILE *input)
2296 struct isl_stream *s = isl_stream_new_file(ctx, input);
2304 __isl_give isl_pw_qpolynomial *isl_stream_read_pw_qpolynomial(
2305 struct isl_stream *s)
2311 isl_assert(s->ctx, obj.type == isl_obj_pw_qpolynomial,
2316 obj.type->free(obj.v);
2320 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_str(isl_ctx *ctx,
2323 isl_pw_qpolynomial *pwqp;
2324 struct isl_stream *s = isl_stream_new_str(ctx, str);
2327 pwqp = isl_stream_read_pw_qpolynomial(s);
2332 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_file(isl_ctx *ctx,
2335 isl_pw_qpolynomial *pwqp;
2336 struct isl_stream *s = isl_stream_new_file(ctx, input);
2339 pwqp = isl_stream_read_pw_qpolynomial(s);
2344 /* Read an affine expression from "s" with domain (space) "dom".
2345 * We call accept_affine to parse a possibly piecewise affine expression
2346 * and then check that the result is a single affine expression on
2347 * a universe domain.
2349 static __isl_give isl_aff *read_aff_with_dom(struct isl_stream *s,
2350 __isl_take isl_set *dom, struct vars *v)
2352 isl_aff *aff = NULL;
2353 isl_pw_aff *pwaff = NULL;
2355 if (!isl_set_plain_is_universe(dom))
2356 isl_die(s->ctx, isl_error_invalid,
2357 "expecting universe domain", goto error);
2359 if (!isl_set_is_params(dom) && isl_stream_eat(s, ISL_TOKEN_TO))
2362 if (isl_stream_eat(s, '['))
2365 pwaff = accept_affine(s, isl_set_get_space(dom), v);
2367 if (isl_stream_eat(s, ']'))
2369 if (isl_stream_eat(s, '}'))
2376 isl_die(s->ctx, isl_error_invalid,
2377 "expecting single affine expression", goto error);
2378 if (!isl_set_plain_is_universe(pwaff->p[0].set))
2379 isl_die(s->ctx, isl_error_invalid,
2380 "expecting universe domain", goto error);
2382 aff = isl_aff_copy(pwaff->p[0].aff);
2385 isl_pw_aff_free(pwaff);
2390 isl_pw_aff_free(pwaff);
2395 /* Is the next token an identifer not in "v"?
2397 static int next_is_fresh_ident(struct isl_stream *s, struct vars *v)
2401 struct isl_token *tok;
2403 tok = isl_stream_next_token(s);
2406 fresh = tok->type == ISL_TOKEN_IDENT && vars_pos(v, tok->u.s, -1) >= n;
2407 isl_stream_push_token(s, tok);
2409 vars_drop(v, v->n - n);
2414 /* First read the domain of the affine expression, which may be
2415 * a parameter space or a set.
2416 * The tricky part is that we don't know if the domain is a set or not,
2417 * so when we are trying to read the domain, we may actually be reading
2418 * the affine expression itself (defined on a parameter domains)
2419 * If the tuple we are reading is named, we assume it's the domain.
2420 * Also, if inside the tuple, the first thing we find is a nested tuple
2421 * or a new identifier, we again assume it's the domain.
2422 * Otherwise, we assume we are reading an affine expression.
2424 static __isl_give isl_set *read_aff_domain(struct isl_stream *s,
2425 __isl_take isl_set *dom, struct vars *v)
2427 struct isl_token *tok;
2429 tok = isl_stream_next_token(s);
2430 if (tok && (tok->type == ISL_TOKEN_IDENT || tok->is_keyword)) {
2431 isl_stream_push_token(s, tok);
2432 return read_tuple(s, dom, isl_dim_set, v);
2434 if (!tok || tok->type != '[') {
2435 isl_stream_error(s, tok, "expecting '['");
2438 if (next_is_tuple(s) || next_is_fresh_ident(s, v)) {
2439 isl_stream_push_token(s, tok);
2440 dom = read_tuple(s, dom, isl_dim_set, v);
2442 isl_stream_push_token(s, tok);
2447 isl_stream_push_token(s, tok);
2453 /* Read an affine expression from "s".
2454 * We first read the domain of the affine expression, which may be
2455 * a parameter space or a set, and then call read_aff_with_dom.
2457 __isl_give isl_aff *isl_stream_read_aff(struct isl_stream *s)
2460 isl_set *dom = NULL;
2462 v = vars_new(s->ctx);
2466 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2467 if (next_is_tuple(s)) {
2468 dom = read_tuple(s, dom, isl_dim_param, v);
2469 if (isl_stream_eat(s, ISL_TOKEN_TO))
2472 if (isl_stream_eat(s, '{'))
2475 dom = read_aff_domain(s, dom, v);
2476 return read_aff_with_dom(s, dom, v);
2483 /* Read a piecewise affine expression from "s" with domain (space) "dom".
2485 static __isl_give isl_pw_aff *read_pw_aff_with_dom(struct isl_stream *s,
2486 __isl_take isl_set *dom, struct vars *v)
2488 isl_pw_aff *pwaff = NULL;
2490 if (!isl_set_is_params(dom) && isl_stream_eat(s, ISL_TOKEN_TO))
2493 if (isl_stream_eat(s, '['))
2496 pwaff = accept_affine(s, isl_set_get_space(dom), v);
2498 if (isl_stream_eat(s, ']'))
2501 dom = read_optional_disjuncts(s, dom, v);
2502 pwaff = isl_pw_aff_intersect_domain(pwaff, dom);
2507 isl_pw_aff_free(pwaff);
2511 __isl_give isl_pw_aff *isl_stream_read_pw_aff(struct isl_stream *s)
2514 isl_set *dom = NULL;
2516 isl_pw_aff *pa = NULL;
2519 v = vars_new(s->ctx);
2523 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2524 if (next_is_tuple(s)) {
2525 dom = read_tuple(s, dom, isl_dim_param, v);
2526 if (isl_stream_eat(s, ISL_TOKEN_TO))
2529 if (isl_stream_eat(s, '{'))
2533 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2534 pa = read_pw_aff_with_dom(s, aff_dom, v);
2535 vars_drop(v, v->n - n);
2537 while (isl_stream_eat_if_available(s, ';')) {
2541 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2542 pa_i = read_pw_aff_with_dom(s, aff_dom, v);
2543 vars_drop(v, v->n - n);
2545 pa = isl_pw_aff_union_add(pa, pa_i);
2548 if (isl_stream_eat(s, '}'))
2557 isl_pw_aff_free(pa);
2561 __isl_give isl_aff *isl_aff_read_from_str(isl_ctx *ctx, const char *str)
2564 struct isl_stream *s = isl_stream_new_str(ctx, str);
2567 aff = isl_stream_read_aff(s);
2572 __isl_give isl_pw_aff *isl_pw_aff_read_from_str(isl_ctx *ctx, const char *str)
2575 struct isl_stream *s = isl_stream_new_str(ctx, str);
2578 pa = isl_stream_read_pw_aff(s);
2583 /* Read an isl_pw_multi_aff from "s".
2584 * We currently read a generic object and if it turns out to be a set or
2585 * a map, we convert that to an isl_pw_multi_aff.
2586 * It would be more efficient if we were to construct the isl_pw_multi_aff
2589 __isl_give isl_pw_multi_aff *isl_stream_read_pw_multi_aff(struct isl_stream *s)
2597 if (obj.type == isl_obj_map)
2598 return isl_pw_multi_aff_from_map(obj.v);
2599 if (obj.type == isl_obj_set)
2600 return isl_pw_multi_aff_from_set(obj.v);
2602 obj.type->free(obj.v);
2603 isl_die(s->ctx, isl_error_invalid, "unexpected object type",
2607 __isl_give isl_pw_multi_aff *isl_pw_multi_aff_read_from_str(isl_ctx *ctx,
2610 isl_pw_multi_aff *pma;
2611 struct isl_stream *s = isl_stream_new_str(ctx, str);
2614 pma = isl_stream_read_pw_multi_aff(s);
2619 /* Read a multi-affine expression from "s".
2620 * We call isl_stream_read_pw_multi_aff to parse a possibly piecewise
2621 * multi-affine expression and then check that the result is
2622 * a single multi-affine expression on a universe domain.
2624 __isl_give isl_multi_aff *isl_stream_read_multi_aff(struct isl_stream *s)
2626 isl_pw_multi_aff *pma;
2627 isl_multi_aff *maff;
2629 pma = isl_stream_read_pw_multi_aff(s);
2633 isl_die(s->ctx, isl_error_invalid,
2634 "expecting single list of affine expressions",
2635 return isl_pw_multi_aff_free(pma));
2636 if (!isl_set_plain_is_universe(pma->p[0].set))
2637 isl_die(s->ctx, isl_error_invalid, "expecting universe domain",
2638 return isl_pw_multi_aff_free(pma));
2639 maff = isl_multi_aff_copy(pma->p[0].maff);
2640 isl_pw_multi_aff_free(pma);
2644 __isl_give isl_multi_aff *isl_multi_aff_read_from_str(isl_ctx *ctx,
2647 isl_multi_aff *maff;
2648 struct isl_stream *s = isl_stream_new_str(ctx, str);
2651 maff = isl_stream_read_multi_aff(s);
2656 __isl_give isl_union_pw_qpolynomial *isl_stream_read_union_pw_qpolynomial(
2657 struct isl_stream *s)
2662 if (obj.type == isl_obj_pw_qpolynomial) {
2663 obj.type = isl_obj_union_pw_qpolynomial;
2664 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
2667 isl_assert(s->ctx, obj.type == isl_obj_union_pw_qpolynomial,
2672 obj.type->free(obj.v);
2676 __isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_read_from_str(
2677 isl_ctx *ctx, const char *str)
2679 isl_union_pw_qpolynomial *upwqp;
2680 struct isl_stream *s = isl_stream_new_str(ctx, str);
2683 upwqp = isl_stream_read_union_pw_qpolynomial(s);