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;
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 return isl_pw_aff_cond(isl_map_wrap(cond), pwaff1, pwaff2);
601 isl_pw_aff_free(pwaff1);
602 isl_pw_aff_free(pwaff2);
606 /* Accept an affine expression that may involve ternary operators.
607 * We first read an affine expression.
608 * If it is not followed by a comparison operator, we simply return it.
609 * Otherwise, we assume the affine epxression is part of the first
610 * argument of a ternary operator and try to parse that.
612 static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
613 __isl_take isl_space *dim, struct vars *v)
618 struct isl_token *tok;
619 int line = -1, col = -1;
622 tok = isl_stream_next_token(s);
626 isl_stream_push_token(s, tok);
629 pwaff = accept_affine(s, dim, v);
633 tok = isl_stream_next_token(s);
635 return isl_pw_aff_free(pwaff);
637 is_comp = is_comparator(tok);
638 isl_stream_push_token(s, tok);
642 tok = isl_token_new(s->ctx, line, col, 0);
644 return isl_pw_aff_free(pwaff);
645 tok->type = ISL_TOKEN_AFF;
646 tok->u.pwaff = pwaff;
648 space = isl_pw_aff_get_domain_space(pwaff);
649 cond = isl_map_universe(isl_space_unwrap(space));
651 isl_stream_push_token(s, tok);
653 cond = read_disjuncts(s, v, cond);
655 return accept_ternary(s, cond, v);
658 static __isl_give isl_map *read_var_def(struct isl_stream *s,
659 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v)
665 if (type == isl_dim_param)
666 pos = isl_map_dim(map, isl_dim_param);
668 pos = isl_map_dim(map, isl_dim_in);
669 if (type == isl_dim_out)
670 pos += isl_map_dim(map, isl_dim_out);
675 def = accept_extended_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
676 def_map = isl_map_from_pw_aff(def);
677 def_map = isl_map_equate(def_map, type, pos, isl_dim_out, 0);
678 def_map = isl_set_unwrap(isl_map_domain(def_map));
680 map = isl_map_intersect(map, def_map);
685 static __isl_give isl_map *read_var_list(struct isl_stream *s,
686 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v)
689 struct isl_token *tok;
691 if (isl_stream_next_token_is(s, ']'))
692 return isl_map_add_dims(map, type, 0);
694 while ((tok = next_token(s)) != NULL) {
697 if (tok->type == ISL_TOKEN_IDENT) {
699 int p = vars_pos(v, tok->u.s, -1);
706 map = isl_map_add_dims(map, type, 1);
707 map = set_name(map, type, i, v->v->name);
709 if (isl_stream_eat_if_available(s, '='))
710 map = read_var_def(s, map, type, v);
712 if (type == isl_dim_param) {
713 isl_stream_error(s, tok,
714 "expecting unique identifier");
717 isl_stream_push_token(s, tok);
719 if (vars_add_anon(v) < 0)
721 map = isl_map_add_dims(map, type, 1);
722 map = read_var_def(s, map, type, v);
725 tok = isl_stream_next_token(s);
726 if (tok && tok->type == ']' &&
727 isl_stream_next_token_is(s, '[')) {
729 tok = isl_stream_next_token(s);
730 } else if (!tok || tok->type != ',')
737 isl_stream_push_token(s, tok);
746 static __isl_give isl_pw_aff_list *accept_affine_list(struct isl_stream *s,
747 __isl_take isl_space *dim, struct vars *v)
750 isl_pw_aff_list *list;
751 struct isl_token *tok = NULL;
753 pwaff = accept_affine(s, isl_space_copy(dim), v);
754 list = isl_pw_aff_list_from_pw_aff(pwaff);
759 tok = isl_stream_next_token(s);
761 isl_stream_error(s, NULL, "unexpected EOF");
764 if (tok->type != ',') {
765 isl_stream_push_token(s, tok);
770 pwaff = accept_affine(s, isl_space_copy(dim), v);
771 list = isl_pw_aff_list_concat(list,
772 isl_pw_aff_list_from_pw_aff(pwaff));
781 isl_pw_aff_list_free(list);
785 static __isl_give isl_map *read_defined_var_list(struct isl_stream *s,
786 struct vars *v, __isl_take isl_map *map)
788 struct isl_token *tok;
790 while ((tok = isl_stream_next_token(s)) != NULL) {
794 if (tok->type != ISL_TOKEN_IDENT)
797 p = vars_pos(v, tok->u.s, -1);
801 isl_stream_error(s, tok, "expecting unique identifier");
805 map = isl_map_add_dims(map, isl_dim_out, 1);
808 tok = isl_stream_next_token(s);
809 if (tok && tok->type == '=') {
811 map = read_var_def(s, map, isl_dim_out, v);
812 tok = isl_stream_next_token(s);
815 if (!tok || tok->type != ',')
821 isl_stream_push_token(s, tok);
830 static int next_is_tuple(struct isl_stream *s)
832 struct isl_token *tok;
835 tok = isl_stream_next_token(s);
838 if (tok->type == '[') {
839 isl_stream_push_token(s, tok);
842 if (tok->type != ISL_TOKEN_IDENT && !tok->is_keyword) {
843 isl_stream_push_token(s, tok);
847 is_tuple = isl_stream_next_token_is(s, '[');
849 isl_stream_push_token(s, tok);
854 static __isl_give isl_map *read_tuple(struct isl_stream *s,
855 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v);
857 static __isl_give isl_set *read_nested_tuple(struct isl_stream *s,
858 __isl_take isl_map *map, struct vars *v)
860 map = read_tuple(s, map, isl_dim_in, v);
861 if (isl_stream_eat(s, ISL_TOKEN_TO))
863 map = read_tuple(s, map, isl_dim_out, v);
864 return isl_map_wrap(map);
870 static __isl_give isl_map *read_tuple(struct isl_stream *s,
871 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v)
873 struct isl_token *tok;
876 tok = isl_stream_next_token(s);
877 if (tok && (tok->type == ISL_TOKEN_IDENT || tok->is_keyword)) {
878 name = strdup(tok->u.s);
882 tok = isl_stream_next_token(s);
884 if (!tok || tok->type != '[') {
885 isl_stream_error(s, tok, "expecting '['");
889 if (type != isl_dim_param && next_is_tuple(s)) {
890 isl_space *dim = isl_map_get_space(map);
891 int nparam = isl_space_dim(dim, isl_dim_param);
892 int n_in = isl_space_dim(dim, isl_dim_in);
894 if (type == isl_dim_out) {
895 dim = isl_space_move_dims(dim, isl_dim_param, nparam,
896 isl_dim_in, 0, n_in);
897 dim = isl_space_params(dim);
899 nested = read_nested_tuple(s, isl_map_universe(dim), v);
900 if (type == isl_dim_in) {
901 nested = isl_map_reverse(nested);
902 map = isl_map_intersect(nested, map);
905 dim = isl_set_get_space(nested);
906 dim = isl_space_drop_dims(dim, isl_dim_param, nparam, n_in);
907 dim = isl_space_join(isl_map_get_space(map), dim);
908 set = isl_map_domain(map);
909 nested = isl_map_reset_space(nested, dim);
910 map = isl_map_intersect_domain(nested, set);
913 map = read_var_list(s, map, type, v);
914 tok = isl_stream_next_token(s);
915 if (!tok || tok->type != ']') {
916 isl_stream_error(s, tok, "expecting ']'");
922 map = isl_map_set_tuple_name(map, type, name);
934 static __isl_give isl_set *construct_constraints(
935 __isl_take isl_set *set, enum isl_token_type type,
936 __isl_keep isl_pw_aff_list *left, __isl_keep isl_pw_aff_list *right)
940 if (type == ISL_TOKEN_LE)
941 cond = isl_pw_aff_list_le_set(isl_pw_aff_list_copy(left),
942 isl_pw_aff_list_copy(right));
943 else if (type == ISL_TOKEN_GE)
944 cond = isl_pw_aff_list_ge_set(isl_pw_aff_list_copy(left),
945 isl_pw_aff_list_copy(right));
946 else if (type == ISL_TOKEN_LT)
947 cond = isl_pw_aff_list_lt_set(isl_pw_aff_list_copy(left),
948 isl_pw_aff_list_copy(right));
949 else if (type == ISL_TOKEN_GT)
950 cond = isl_pw_aff_list_gt_set(isl_pw_aff_list_copy(left),
951 isl_pw_aff_list_copy(right));
952 else if (type == ISL_TOKEN_NE)
953 cond = isl_pw_aff_list_ne_set(isl_pw_aff_list_copy(left),
954 isl_pw_aff_list_copy(right));
956 cond = isl_pw_aff_list_eq_set(isl_pw_aff_list_copy(left),
957 isl_pw_aff_list_copy(right));
959 return isl_set_intersect(set, cond);
962 static __isl_give isl_map *add_constraint(struct isl_stream *s,
963 struct vars *v, __isl_take isl_map *map)
965 struct isl_token *tok = NULL;
966 isl_pw_aff_list *list1 = NULL, *list2 = NULL;
969 set = isl_map_wrap(map);
970 list1 = accept_affine_list(s, isl_set_get_space(set), v);
973 tok = isl_stream_next_token(s);
974 if (!is_comparator(tok)) {
975 isl_stream_error(s, tok, "missing operator");
977 isl_stream_push_token(s, tok);
982 list2 = accept_affine_list(s, isl_set_get_space(set), v);
986 set = construct_constraints(set, tok->type, list1, list2);
988 isl_pw_aff_list_free(list1);
991 tok = isl_stream_next_token(s);
992 if (!is_comparator(tok)) {
994 isl_stream_push_token(s, tok);
998 isl_pw_aff_list_free(list1);
1000 return isl_set_unwrap(set);
1003 isl_token_free(tok);
1004 isl_pw_aff_list_free(list1);
1005 isl_pw_aff_list_free(list2);
1010 static __isl_give isl_map *read_exists(struct isl_stream *s,
1011 struct vars *v, __isl_take isl_map *map)
1014 int seen_paren = isl_stream_eat_if_available(s, '(');
1016 map = isl_map_from_domain(isl_map_wrap(map));
1017 map = read_defined_var_list(s, v, map);
1019 if (isl_stream_eat(s, ':'))
1022 map = read_disjuncts(s, v, map);
1023 map = isl_set_unwrap(isl_map_domain(map));
1025 vars_drop(v, v->n - n);
1026 if (seen_paren && isl_stream_eat(s, ')'))
1035 /* Parse an expression between parentheses and push the result
1036 * back on the stream.
1038 * The parsed expression may be either an affine expression
1039 * or a condition. The first type is pushed onto the stream
1040 * as an isl_pw_aff, while the second is pushed as an isl_map.
1042 * If the initial token indicates the start of a condition,
1043 * we parse it as such.
1044 * Otherwise, we first parse an affine expression and push
1045 * that onto the stream. If the affine expression covers the
1046 * entire expression between parentheses, we return.
1047 * Otherwise, we assume that the affine expression is the
1048 * start of a condition and continue parsing.
1050 static int resolve_paren_expr(struct isl_stream *s,
1051 struct vars *v, __isl_take isl_map *map)
1053 struct isl_token *tok, *tok2;
1057 tok = isl_stream_next_token(s);
1058 if (!tok || tok->type != '(')
1061 if (isl_stream_next_token_is(s, '('))
1062 if (resolve_paren_expr(s, v, isl_map_copy(map)))
1065 if (isl_stream_next_token_is(s, ISL_TOKEN_EXISTS) ||
1066 isl_stream_next_token_is(s, ISL_TOKEN_TRUE) ||
1067 isl_stream_next_token_is(s, ISL_TOKEN_FALSE) ||
1068 isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1069 map = read_disjuncts(s, v, map);
1070 if (isl_stream_eat(s, ')'))
1072 tok->type = ISL_TOKEN_MAP;
1074 isl_stream_push_token(s, tok);
1078 tok2 = isl_stream_next_token(s);
1083 isl_stream_push_token(s, tok2);
1085 pwaff = accept_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
1089 tok2 = isl_token_new(s->ctx, line, col, 0);
1092 tok2->type = ISL_TOKEN_AFF;
1093 tok2->u.pwaff = pwaff;
1095 if (isl_stream_eat_if_available(s, ')')) {
1096 isl_stream_push_token(s, tok2);
1097 isl_token_free(tok);
1102 isl_stream_push_token(s, tok2);
1104 map = read_disjuncts(s, v, map);
1105 if (isl_stream_eat(s, ')'))
1108 tok->type = ISL_TOKEN_MAP;
1110 isl_stream_push_token(s, tok);
1114 isl_pw_aff_free(pwaff);
1116 isl_token_free(tok);
1121 static __isl_give isl_map *read_conjunct(struct isl_stream *s,
1122 struct vars *v, __isl_take isl_map *map)
1124 if (isl_stream_next_token_is(s, '('))
1125 if (resolve_paren_expr(s, v, isl_map_copy(map)))
1128 if (isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1129 struct isl_token *tok;
1130 tok = isl_stream_next_token(s);
1134 map = isl_map_copy(tok->u.map);
1135 isl_token_free(tok);
1139 if (isl_stream_eat_if_available(s, ISL_TOKEN_EXISTS))
1140 return read_exists(s, v, map);
1142 if (isl_stream_eat_if_available(s, ISL_TOKEN_TRUE))
1145 if (isl_stream_eat_if_available(s, ISL_TOKEN_FALSE)) {
1146 isl_space *dim = isl_map_get_space(map);
1148 return isl_map_empty(dim);
1151 return add_constraint(s, v, map);
1157 static __isl_give isl_map *read_conjuncts(struct isl_stream *s,
1158 struct vars *v, __isl_take isl_map *map)
1163 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1164 res = read_conjunct(s, v, isl_map_copy(map));
1166 res = isl_map_subtract(isl_map_copy(map), res);
1168 while (isl_stream_eat_if_available(s, ISL_TOKEN_AND)) {
1171 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1172 res_i = read_conjunct(s, v, isl_map_copy(map));
1174 res = isl_map_subtract(res, res_i);
1176 res = isl_map_intersect(res, res_i);
1183 static struct isl_map *read_disjuncts(struct isl_stream *s,
1184 struct vars *v, __isl_take isl_map *map)
1188 if (isl_stream_next_token_is(s, '}')) {
1189 isl_space *dim = isl_map_get_space(map);
1191 return isl_map_universe(dim);
1194 res = read_conjuncts(s, v, isl_map_copy(map));
1195 while (isl_stream_eat_if_available(s, ISL_TOKEN_OR)) {
1198 res_i = read_conjuncts(s, v, isl_map_copy(map));
1199 res = isl_map_union(res, res_i);
1206 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map *bmap, int pos)
1208 if (pos < isl_basic_map_dim(bmap, isl_dim_out))
1209 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1210 isl_basic_map_dim(bmap, isl_dim_in) + pos;
1211 pos -= isl_basic_map_dim(bmap, isl_dim_out);
1213 if (pos < isl_basic_map_dim(bmap, isl_dim_in))
1214 return 1 + isl_basic_map_dim(bmap, isl_dim_param) + pos;
1215 pos -= isl_basic_map_dim(bmap, isl_dim_in);
1217 if (pos < isl_basic_map_dim(bmap, isl_dim_div))
1218 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1219 isl_basic_map_dim(bmap, isl_dim_in) +
1220 isl_basic_map_dim(bmap, isl_dim_out) + pos;
1221 pos -= isl_basic_map_dim(bmap, isl_dim_div);
1223 if (pos < isl_basic_map_dim(bmap, isl_dim_param))
1229 static __isl_give isl_basic_map *basic_map_read_polylib_constraint(
1230 struct isl_stream *s, __isl_take isl_basic_map *bmap)
1233 struct isl_token *tok;
1243 nparam = isl_basic_map_dim(bmap, isl_dim_param);
1244 dim = isl_basic_map_dim(bmap, isl_dim_out);
1246 tok = isl_stream_next_token(s);
1247 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1248 isl_stream_error(s, tok, "expecting coefficient");
1250 isl_stream_push_token(s, tok);
1253 if (!tok->on_new_line) {
1254 isl_stream_error(s, tok, "coefficient should appear on new line");
1255 isl_stream_push_token(s, tok);
1259 type = isl_int_get_si(tok->u.v);
1260 isl_token_free(tok);
1262 isl_assert(s->ctx, type == 0 || type == 1, goto error);
1264 k = isl_basic_map_alloc_equality(bmap);
1267 k = isl_basic_map_alloc_inequality(bmap);
1273 for (j = 0; j < 1 + isl_basic_map_total_dim(bmap); ++j) {
1275 tok = isl_stream_next_token(s);
1276 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1277 isl_stream_error(s, tok, "expecting coefficient");
1279 isl_stream_push_token(s, tok);
1282 if (tok->on_new_line) {
1283 isl_stream_error(s, tok,
1284 "coefficient should not appear on new line");
1285 isl_stream_push_token(s, tok);
1288 pos = polylib_pos_to_isl_pos(bmap, j);
1289 isl_int_set(c[pos], tok->u.v);
1290 isl_token_free(tok);
1295 isl_basic_map_free(bmap);
1299 static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s)
1302 struct isl_token *tok;
1303 struct isl_token *tok2;
1306 unsigned in = 0, out, local = 0;
1307 struct isl_basic_map *bmap = NULL;
1310 tok = isl_stream_next_token(s);
1312 isl_stream_error(s, NULL, "unexpected EOF");
1315 tok2 = isl_stream_next_token(s);
1317 isl_token_free(tok);
1318 isl_stream_error(s, NULL, "unexpected EOF");
1321 if (tok->type != ISL_TOKEN_VALUE || tok2->type != ISL_TOKEN_VALUE) {
1322 isl_stream_push_token(s, tok2);
1323 isl_stream_push_token(s, tok);
1324 isl_stream_error(s, NULL,
1325 "expecting constraint matrix dimensions");
1328 n_row = isl_int_get_si(tok->u.v);
1329 n_col = isl_int_get_si(tok2->u.v);
1330 on_new_line = tok2->on_new_line;
1331 isl_token_free(tok2);
1332 isl_token_free(tok);
1333 isl_assert(s->ctx, !on_new_line, return NULL);
1334 isl_assert(s->ctx, n_row >= 0, return NULL);
1335 isl_assert(s->ctx, n_col >= 2 + nparam, return NULL);
1336 tok = isl_stream_next_token_on_same_line(s);
1338 if (tok->type != ISL_TOKEN_VALUE) {
1339 isl_stream_error(s, tok,
1340 "expecting number of output dimensions");
1341 isl_stream_push_token(s, tok);
1344 out = isl_int_get_si(tok->u.v);
1345 isl_token_free(tok);
1347 tok = isl_stream_next_token_on_same_line(s);
1348 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1349 isl_stream_error(s, tok,
1350 "expecting number of input dimensions");
1352 isl_stream_push_token(s, tok);
1355 in = isl_int_get_si(tok->u.v);
1356 isl_token_free(tok);
1358 tok = isl_stream_next_token_on_same_line(s);
1359 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1360 isl_stream_error(s, tok,
1361 "expecting number of existentials");
1363 isl_stream_push_token(s, tok);
1366 local = isl_int_get_si(tok->u.v);
1367 isl_token_free(tok);
1369 tok = isl_stream_next_token_on_same_line(s);
1370 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1371 isl_stream_error(s, tok,
1372 "expecting number of parameters");
1374 isl_stream_push_token(s, tok);
1377 nparam = isl_int_get_si(tok->u.v);
1378 isl_token_free(tok);
1379 if (n_col != 1 + out + in + local + nparam + 1) {
1380 isl_stream_error(s, NULL,
1381 "dimensions don't match");
1385 out = n_col - 2 - nparam;
1386 bmap = isl_basic_map_alloc(s->ctx, nparam, in, out, local, n_row, n_row);
1390 for (i = 0; i < local; ++i) {
1391 int k = isl_basic_map_alloc_div(bmap);
1394 isl_seq_clr(bmap->div[k], 1 + 1 + nparam + in + out + local);
1397 for (i = 0; i < n_row; ++i)
1398 bmap = basic_map_read_polylib_constraint(s, bmap);
1400 tok = isl_stream_next_token_on_same_line(s);
1402 isl_stream_error(s, tok, "unexpected extra token on line");
1403 isl_stream_push_token(s, tok);
1407 bmap = isl_basic_map_simplify(bmap);
1408 bmap = isl_basic_map_finalize(bmap);
1411 isl_basic_map_free(bmap);
1415 static struct isl_map *map_read_polylib(struct isl_stream *s)
1417 struct isl_token *tok;
1418 struct isl_token *tok2;
1420 struct isl_map *map;
1422 tok = isl_stream_next_token(s);
1424 isl_stream_error(s, NULL, "unexpected EOF");
1427 tok2 = isl_stream_next_token_on_same_line(s);
1428 if (tok2 && tok2->type == ISL_TOKEN_VALUE) {
1429 isl_stream_push_token(s, tok2);
1430 isl_stream_push_token(s, tok);
1431 return isl_map_from_basic_map(basic_map_read_polylib(s));
1434 isl_stream_error(s, tok2, "unexpected token");
1435 isl_stream_push_token(s, tok2);
1436 isl_stream_push_token(s, tok);
1439 n = isl_int_get_si(tok->u.v);
1440 isl_token_free(tok);
1442 isl_assert(s->ctx, n >= 1, return NULL);
1444 map = isl_map_from_basic_map(basic_map_read_polylib(s));
1446 for (i = 1; map && i < n; ++i)
1447 map = isl_map_union(map,
1448 isl_map_from_basic_map(basic_map_read_polylib(s)));
1453 static int optional_power(struct isl_stream *s)
1456 struct isl_token *tok;
1458 tok = isl_stream_next_token(s);
1461 if (tok->type != '^') {
1462 isl_stream_push_token(s, tok);
1465 isl_token_free(tok);
1466 tok = isl_stream_next_token(s);
1467 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1468 isl_stream_error(s, tok, "expecting exponent");
1470 isl_stream_push_token(s, tok);
1473 pow = isl_int_get_si(tok->u.v);
1474 isl_token_free(tok);
1478 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1479 __isl_keep isl_map *map, struct vars *v);
1481 static __isl_give isl_pw_qpolynomial *read_factor(struct isl_stream *s,
1482 __isl_keep isl_map *map, struct vars *v)
1484 isl_pw_qpolynomial *pwqp;
1485 struct isl_token *tok;
1487 tok = next_token(s);
1489 isl_stream_error(s, NULL, "unexpected EOF");
1492 if (tok->type == '(') {
1495 isl_token_free(tok);
1496 pwqp = read_term(s, map, v);
1499 if (isl_stream_eat(s, ')'))
1501 pow = optional_power(s);
1502 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1503 } else if (tok->type == ISL_TOKEN_VALUE) {
1504 struct isl_token *tok2;
1505 tok2 = isl_stream_next_token(s);
1506 isl_qpolynomial *qp;
1507 if (tok2 && tok2->type == '/') {
1508 isl_token_free(tok2);
1509 tok2 = next_token(s);
1510 if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
1511 isl_stream_error(s, tok2, "expected denominator");
1512 isl_token_free(tok);
1513 isl_token_free(tok2);
1516 qp = isl_qpolynomial_rat_cst_on_domain(isl_map_get_space(map),
1517 tok->u.v, tok2->u.v);
1518 isl_token_free(tok2);
1520 isl_stream_push_token(s, tok2);
1521 qp = isl_qpolynomial_cst_on_domain(isl_map_get_space(map),
1524 isl_token_free(tok);
1525 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1526 } else if (tok->type == ISL_TOKEN_INFTY) {
1527 isl_qpolynomial *qp;
1528 isl_token_free(tok);
1529 qp = isl_qpolynomial_infty_on_domain(isl_map_get_space(map));
1530 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1531 } else if (tok->type == ISL_TOKEN_NAN) {
1532 isl_qpolynomial *qp;
1533 isl_token_free(tok);
1534 qp = isl_qpolynomial_nan_on_domain(isl_map_get_space(map));
1535 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1536 } else if (tok->type == ISL_TOKEN_IDENT) {
1538 int pos = vars_pos(v, tok->u.s, -1);
1540 isl_qpolynomial *qp;
1542 isl_token_free(tok);
1546 vars_drop(v, v->n - n);
1547 isl_stream_error(s, tok, "unknown identifier");
1548 isl_token_free(tok);
1551 isl_token_free(tok);
1552 pow = optional_power(s);
1553 qp = isl_qpolynomial_var_pow_on_domain(isl_map_get_space(map), pos, pow);
1554 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1555 } else if (tok->type == '[') {
1559 isl_stream_push_token(s, tok);
1560 pwaff = accept_affine(s, isl_map_get_space(map), v);
1561 pow = optional_power(s);
1562 pwqp = isl_pw_qpolynomial_from_pw_aff(pwaff);
1563 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1564 } else if (tok->type == '-') {
1565 isl_token_free(tok);
1566 pwqp = read_factor(s, map, v);
1567 pwqp = isl_pw_qpolynomial_neg(pwqp);
1569 isl_stream_error(s, tok, "unexpected isl_token");
1570 isl_stream_push_token(s, tok);
1574 if (isl_stream_eat_if_available(s, '*') ||
1575 isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
1576 isl_pw_qpolynomial *pwqp2;
1578 pwqp2 = read_factor(s, map, v);
1579 pwqp = isl_pw_qpolynomial_mul(pwqp, pwqp2);
1584 isl_pw_qpolynomial_free(pwqp);
1588 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1589 __isl_keep isl_map *map, struct vars *v)
1591 struct isl_token *tok;
1592 isl_pw_qpolynomial *pwqp;
1594 pwqp = read_factor(s, map, v);
1597 tok = next_token(s);
1601 if (tok->type == '+') {
1602 isl_pw_qpolynomial *pwqp2;
1604 isl_token_free(tok);
1605 pwqp2 = read_factor(s, map, v);
1606 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1607 } else if (tok->type == '-') {
1608 isl_pw_qpolynomial *pwqp2;
1610 isl_token_free(tok);
1611 pwqp2 = read_factor(s, map, v);
1612 pwqp = isl_pw_qpolynomial_sub(pwqp, pwqp2);
1613 } else if (tok->type == ISL_TOKEN_VALUE &&
1614 isl_int_is_neg(tok->u.v)) {
1615 isl_pw_qpolynomial *pwqp2;
1617 isl_stream_push_token(s, tok);
1618 pwqp2 = read_factor(s, map, v);
1619 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1621 isl_stream_push_token(s, tok);
1629 static __isl_give isl_map *read_optional_disjuncts(struct isl_stream *s,
1630 __isl_take isl_map *map, struct vars *v)
1632 struct isl_token *tok;
1634 tok = isl_stream_next_token(s);
1636 isl_stream_error(s, NULL, "unexpected EOF");
1639 if (tok->type == ':' ||
1640 (tok->type == ISL_TOKEN_OR && !strcmp(tok->u.s, "|"))) {
1641 isl_token_free(tok);
1642 map = read_disjuncts(s, v, map);
1644 isl_stream_push_token(s, tok);
1652 static struct isl_obj obj_read_poly(struct isl_stream *s,
1653 __isl_take isl_map *map, struct vars *v, int n)
1655 struct isl_obj obj = { isl_obj_pw_qpolynomial, NULL };
1656 isl_pw_qpolynomial *pwqp;
1657 struct isl_set *set;
1659 pwqp = read_term(s, map, v);
1660 map = read_optional_disjuncts(s, map, v);
1661 set = isl_map_range(map);
1663 pwqp = isl_pw_qpolynomial_intersect_domain(pwqp, set);
1665 vars_drop(v, v->n - n);
1671 static struct isl_obj obj_read_poly_or_fold(struct isl_stream *s,
1672 __isl_take isl_set *set, struct vars *v, int n)
1674 struct isl_obj obj = { isl_obj_pw_qpolynomial_fold, NULL };
1675 isl_pw_qpolynomial *pwqp;
1676 isl_pw_qpolynomial_fold *pwf = NULL;
1678 if (!isl_stream_eat_if_available(s, ISL_TOKEN_MAX))
1679 return obj_read_poly(s, set, v, n);
1681 if (isl_stream_eat(s, '('))
1684 pwqp = read_term(s, set, v);
1685 pwf = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max, pwqp);
1687 while (isl_stream_eat_if_available(s, ',')) {
1688 isl_pw_qpolynomial_fold *pwf_i;
1689 pwqp = read_term(s, set, v);
1690 pwf_i = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max,
1692 pwf = isl_pw_qpolynomial_fold_fold(pwf, pwf_i);
1695 if (isl_stream_eat(s, ')'))
1698 set = read_optional_disjuncts(s, set, v);
1699 pwf = isl_pw_qpolynomial_fold_intersect_domain(pwf, set);
1701 vars_drop(v, v->n - n);
1707 isl_pw_qpolynomial_fold_free(pwf);
1708 obj.type = isl_obj_none;
1712 static int is_rational(struct isl_stream *s)
1714 struct isl_token *tok;
1716 tok = isl_stream_next_token(s);
1719 if (tok->type == ISL_TOKEN_RAT && isl_stream_next_token_is(s, ':')) {
1720 isl_token_free(tok);
1721 isl_stream_eat(s, ':');
1725 isl_stream_push_token(s, tok);
1730 static struct isl_obj obj_read_body(struct isl_stream *s,
1731 __isl_take isl_map *map, struct vars *v)
1733 struct isl_token *tok;
1734 struct isl_obj obj = { isl_obj_set, NULL };
1738 map = isl_map_set_rational(map);
1740 if (isl_stream_next_token_is(s, ':')) {
1741 obj.type = isl_obj_set;
1742 obj.v = read_optional_disjuncts(s, map, v);
1746 if (!next_is_tuple(s))
1747 return obj_read_poly_or_fold(s, map, v, n);
1749 map = read_tuple(s, map, isl_dim_in, v);
1752 tok = isl_stream_next_token(s);
1753 if (tok && tok->type == ISL_TOKEN_TO) {
1754 obj.type = isl_obj_map;
1755 isl_token_free(tok);
1756 if (!next_is_tuple(s)) {
1757 isl_set *set = isl_map_domain(map);
1758 return obj_read_poly_or_fold(s, set, v, n);
1760 map = read_tuple(s, map, isl_dim_out, v);
1764 map = isl_map_reverse(map);
1766 isl_stream_push_token(s, tok);
1769 map = read_optional_disjuncts(s, map, v);
1771 vars_drop(v, v->n - n);
1777 obj.type = isl_obj_none;
1781 static struct isl_obj to_union(isl_ctx *ctx, struct isl_obj obj)
1783 if (obj.type == isl_obj_map) {
1784 obj.v = isl_union_map_from_map(obj.v);
1785 obj.type = isl_obj_union_map;
1786 } else if (obj.type == isl_obj_set) {
1787 obj.v = isl_union_set_from_set(obj.v);
1788 obj.type = isl_obj_union_set;
1789 } else if (obj.type == isl_obj_pw_qpolynomial) {
1790 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
1791 obj.type = isl_obj_union_pw_qpolynomial;
1792 } else if (obj.type == isl_obj_pw_qpolynomial_fold) {
1793 obj.v = isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj.v);
1794 obj.type = isl_obj_union_pw_qpolynomial_fold;
1796 isl_assert(ctx, 0, goto error);
1799 obj.type->free(obj.v);
1800 obj.type = isl_obj_none;
1804 static struct isl_obj obj_add(struct isl_ctx *ctx,
1805 struct isl_obj obj1, struct isl_obj obj2)
1807 if (obj1.type == isl_obj_set && obj2.type == isl_obj_union_set)
1808 obj1 = to_union(ctx, obj1);
1809 if (obj1.type == isl_obj_union_set && obj2.type == isl_obj_set)
1810 obj2 = to_union(ctx, obj2);
1811 if (obj1.type == isl_obj_map && obj2.type == isl_obj_union_map)
1812 obj1 = to_union(ctx, obj1);
1813 if (obj1.type == isl_obj_union_map && obj2.type == isl_obj_map)
1814 obj2 = to_union(ctx, obj2);
1815 if (obj1.type == isl_obj_pw_qpolynomial &&
1816 obj2.type == isl_obj_union_pw_qpolynomial)
1817 obj1 = to_union(ctx, obj1);
1818 if (obj1.type == isl_obj_union_pw_qpolynomial &&
1819 obj2.type == isl_obj_pw_qpolynomial)
1820 obj2 = to_union(ctx, obj2);
1821 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
1822 obj2.type == isl_obj_union_pw_qpolynomial_fold)
1823 obj1 = to_union(ctx, obj1);
1824 if (obj1.type == isl_obj_union_pw_qpolynomial_fold &&
1825 obj2.type == isl_obj_pw_qpolynomial_fold)
1826 obj2 = to_union(ctx, obj2);
1827 isl_assert(ctx, obj1.type == obj2.type, goto error);
1828 if (obj1.type == isl_obj_map && !isl_map_has_equal_space(obj1.v, obj2.v)) {
1829 obj1 = to_union(ctx, obj1);
1830 obj2 = to_union(ctx, obj2);
1832 if (obj1.type == isl_obj_set && !isl_set_has_equal_space(obj1.v, obj2.v)) {
1833 obj1 = to_union(ctx, obj1);
1834 obj2 = to_union(ctx, obj2);
1836 if (obj1.type == isl_obj_pw_qpolynomial &&
1837 !isl_pw_qpolynomial_has_equal_space(obj1.v, obj2.v)) {
1838 obj1 = to_union(ctx, obj1);
1839 obj2 = to_union(ctx, obj2);
1841 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
1842 !isl_pw_qpolynomial_fold_has_equal_space(obj1.v, obj2.v)) {
1843 obj1 = to_union(ctx, obj1);
1844 obj2 = to_union(ctx, obj2);
1846 obj1.v = obj1.type->add(obj1.v, obj2.v);
1849 obj1.type->free(obj1.v);
1850 obj2.type->free(obj2.v);
1851 obj1.type = isl_obj_none;
1856 static struct isl_obj obj_read(struct isl_stream *s)
1858 isl_map *map = NULL;
1859 struct isl_token *tok;
1860 struct vars *v = NULL;
1861 struct isl_obj obj = { isl_obj_set, NULL };
1863 tok = next_token(s);
1865 isl_stream_error(s, NULL, "unexpected EOF");
1868 if (tok->type == ISL_TOKEN_VALUE) {
1869 struct isl_token *tok2;
1870 struct isl_map *map;
1872 tok2 = isl_stream_next_token(s);
1873 if (!tok2 || tok2->type != ISL_TOKEN_VALUE ||
1874 isl_int_is_neg(tok2->u.v)) {
1876 isl_stream_push_token(s, tok2);
1877 obj.type = isl_obj_int;
1878 obj.v = isl_int_obj_alloc(s->ctx, tok->u.v);
1879 isl_token_free(tok);
1882 isl_stream_push_token(s, tok2);
1883 isl_stream_push_token(s, tok);
1884 map = map_read_polylib(s);
1887 if (isl_map_may_be_set(map))
1888 obj.v = isl_map_range(map);
1890 obj.type = isl_obj_map;
1895 v = vars_new(s->ctx);
1897 isl_stream_push_token(s, tok);
1900 map = isl_map_universe(isl_space_params_alloc(s->ctx, 0));
1901 if (tok->type == '[') {
1902 isl_stream_push_token(s, tok);
1903 map = read_tuple(s, map, isl_dim_param, v);
1906 tok = isl_stream_next_token(s);
1907 if (!tok || tok->type != ISL_TOKEN_TO) {
1908 isl_stream_error(s, tok, "expecting '->'");
1910 isl_stream_push_token(s, tok);
1913 isl_token_free(tok);
1914 tok = isl_stream_next_token(s);
1916 if (!tok || tok->type != '{') {
1917 isl_stream_error(s, tok, "expecting '{'");
1919 isl_stream_push_token(s, tok);
1922 isl_token_free(tok);
1924 tok = isl_stream_next_token(s);
1927 else if (tok->type == ISL_TOKEN_IDENT && !strcmp(tok->u.s, "Sym")) {
1928 isl_token_free(tok);
1929 if (isl_stream_eat(s, '='))
1931 map = read_tuple(s, map, isl_dim_param, v);
1934 } else if (tok->type == '}') {
1935 obj.type = isl_obj_union_set;
1936 obj.v = isl_union_set_empty(isl_map_get_space(map));
1937 isl_token_free(tok);
1940 isl_stream_push_token(s, tok);
1945 o = obj_read_body(s, isl_map_copy(map), v);
1946 if (o.type == isl_obj_none || !o.v)
1951 obj = obj_add(s->ctx, obj, o);
1952 if (obj.type == isl_obj_none || !obj.v)
1955 tok = isl_stream_next_token(s);
1956 if (!tok || tok->type != ';')
1958 isl_token_free(tok);
1959 if (isl_stream_next_token_is(s, '}')) {
1960 tok = isl_stream_next_token(s);
1965 if (tok && tok->type == '}') {
1966 isl_token_free(tok);
1968 isl_stream_error(s, tok, "unexpected isl_token");
1970 isl_token_free(tok);
1980 obj.type->free(obj.v);
1987 struct isl_obj isl_stream_read_obj(struct isl_stream *s)
1992 __isl_give isl_map *isl_stream_read_map(struct isl_stream *s)
1998 isl_assert(s->ctx, obj.type == isl_obj_map ||
1999 obj.type == isl_obj_set, goto error);
2003 obj.type->free(obj.v);
2007 __isl_give isl_set *isl_stream_read_set(struct isl_stream *s)
2013 if (obj.type == isl_obj_map && isl_map_may_be_set(obj.v)) {
2014 obj.v = isl_map_range(obj.v);
2015 obj.type = isl_obj_set;
2017 isl_assert(s->ctx, obj.type == isl_obj_set, goto error);
2022 obj.type->free(obj.v);
2026 __isl_give isl_union_map *isl_stream_read_union_map(struct isl_stream *s)
2031 if (obj.type == isl_obj_map) {
2032 obj.type = isl_obj_union_map;
2033 obj.v = isl_union_map_from_map(obj.v);
2035 if (obj.type == isl_obj_set) {
2036 obj.type = isl_obj_union_set;
2037 obj.v = isl_union_set_from_set(obj.v);
2040 isl_assert(s->ctx, obj.type == isl_obj_union_map ||
2041 obj.type == isl_obj_union_set, goto error);
2045 obj.type->free(obj.v);
2049 __isl_give isl_union_set *isl_stream_read_union_set(struct isl_stream *s)
2054 if (obj.type == isl_obj_set) {
2055 obj.type = isl_obj_union_set;
2056 obj.v = isl_union_set_from_set(obj.v);
2059 isl_assert(s->ctx, obj.type == isl_obj_union_set, goto error);
2063 obj.type->free(obj.v);
2067 static __isl_give isl_basic_map *basic_map_read(struct isl_stream *s)
2070 struct isl_map *map;
2071 struct isl_basic_map *bmap;
2078 isl_assert(map->ctx, map->n <= 1, goto error);
2081 bmap = isl_basic_map_empty_like_map(map);
2083 bmap = isl_basic_map_copy(map->p[0]);
2093 static __isl_give isl_basic_set *basic_set_read(struct isl_stream *s)
2095 isl_basic_map *bmap;
2096 bmap = basic_map_read(s);
2099 if (!isl_basic_map_may_be_set(bmap))
2100 isl_die(s->ctx, isl_error_invalid,
2101 "input is not a set", goto error);
2102 return isl_basic_map_range(bmap);
2104 isl_basic_map_free(bmap);
2108 __isl_give isl_basic_map *isl_basic_map_read_from_file(isl_ctx *ctx,
2111 struct isl_basic_map *bmap;
2112 struct isl_stream *s = isl_stream_new_file(ctx, input);
2115 bmap = basic_map_read(s);
2120 __isl_give isl_basic_set *isl_basic_set_read_from_file(isl_ctx *ctx,
2123 isl_basic_set *bset;
2124 struct isl_stream *s = isl_stream_new_file(ctx, input);
2127 bset = basic_set_read(s);
2132 struct isl_basic_map *isl_basic_map_read_from_str(struct isl_ctx *ctx,
2135 struct isl_basic_map *bmap;
2136 struct isl_stream *s = isl_stream_new_str(ctx, str);
2139 bmap = basic_map_read(s);
2144 struct isl_basic_set *isl_basic_set_read_from_str(struct isl_ctx *ctx,
2147 isl_basic_set *bset;
2148 struct isl_stream *s = isl_stream_new_str(ctx, str);
2151 bset = basic_set_read(s);
2156 __isl_give isl_map *isl_map_read_from_file(struct isl_ctx *ctx,
2159 struct isl_map *map;
2160 struct isl_stream *s = isl_stream_new_file(ctx, input);
2163 map = isl_stream_read_map(s);
2168 __isl_give isl_map *isl_map_read_from_str(struct isl_ctx *ctx,
2171 struct isl_map *map;
2172 struct isl_stream *s = isl_stream_new_str(ctx, str);
2175 map = isl_stream_read_map(s);
2180 __isl_give isl_set *isl_set_read_from_file(struct isl_ctx *ctx,
2184 struct isl_stream *s = isl_stream_new_file(ctx, input);
2187 set = isl_stream_read_set(s);
2192 struct isl_set *isl_set_read_from_str(struct isl_ctx *ctx,
2196 struct isl_stream *s = isl_stream_new_str(ctx, str);
2199 set = isl_stream_read_set(s);
2204 __isl_give isl_union_map *isl_union_map_read_from_file(isl_ctx *ctx,
2207 isl_union_map *umap;
2208 struct isl_stream *s = isl_stream_new_file(ctx, input);
2211 umap = isl_stream_read_union_map(s);
2216 __isl_give isl_union_map *isl_union_map_read_from_str(struct isl_ctx *ctx,
2219 isl_union_map *umap;
2220 struct isl_stream *s = isl_stream_new_str(ctx, str);
2223 umap = isl_stream_read_union_map(s);
2228 __isl_give isl_union_set *isl_union_set_read_from_file(isl_ctx *ctx,
2231 isl_union_set *uset;
2232 struct isl_stream *s = isl_stream_new_file(ctx, input);
2235 uset = isl_stream_read_union_set(s);
2240 __isl_give isl_union_set *isl_union_set_read_from_str(struct isl_ctx *ctx,
2243 isl_union_set *uset;
2244 struct isl_stream *s = isl_stream_new_str(ctx, str);
2247 uset = isl_stream_read_union_set(s);
2252 static __isl_give isl_vec *isl_vec_read_polylib(struct isl_stream *s)
2254 struct isl_vec *vec = NULL;
2255 struct isl_token *tok;
2259 tok = isl_stream_next_token(s);
2260 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2261 isl_stream_error(s, tok, "expecting vector length");
2265 size = isl_int_get_si(tok->u.v);
2266 isl_token_free(tok);
2268 vec = isl_vec_alloc(s->ctx, size);
2270 for (j = 0; j < size; ++j) {
2271 tok = isl_stream_next_token(s);
2272 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2273 isl_stream_error(s, tok, "expecting constant value");
2276 isl_int_set(vec->el[j], tok->u.v);
2277 isl_token_free(tok);
2282 isl_token_free(tok);
2287 static __isl_give isl_vec *vec_read(struct isl_stream *s)
2289 return isl_vec_read_polylib(s);
2292 __isl_give isl_vec *isl_vec_read_from_file(isl_ctx *ctx, FILE *input)
2295 struct isl_stream *s = isl_stream_new_file(ctx, input);
2303 __isl_give isl_pw_qpolynomial *isl_stream_read_pw_qpolynomial(
2304 struct isl_stream *s)
2310 isl_assert(s->ctx, obj.type == isl_obj_pw_qpolynomial,
2315 obj.type->free(obj.v);
2319 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_str(isl_ctx *ctx,
2322 isl_pw_qpolynomial *pwqp;
2323 struct isl_stream *s = isl_stream_new_str(ctx, str);
2326 pwqp = isl_stream_read_pw_qpolynomial(s);
2331 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_file(isl_ctx *ctx,
2334 isl_pw_qpolynomial *pwqp;
2335 struct isl_stream *s = isl_stream_new_file(ctx, input);
2338 pwqp = isl_stream_read_pw_qpolynomial(s);
2343 /* Read an affine expression from "s" with domain (space) "dom".
2344 * We call accept_affine to parse a possibly piecewise affine expression
2345 * and then check that the result is a single affine expression on
2346 * a universe domain.
2348 static __isl_give isl_aff *read_aff_with_dom(struct isl_stream *s,
2349 __isl_take isl_set *dom, struct vars *v)
2351 isl_aff *aff = NULL;
2352 isl_pw_aff *pwaff = NULL;
2354 if (!isl_set_plain_is_universe(dom))
2355 isl_die(s->ctx, isl_error_invalid,
2356 "expecting universe domain", goto error);
2358 if (!isl_set_is_params(dom) && isl_stream_eat(s, ISL_TOKEN_TO))
2361 if (isl_stream_eat(s, '['))
2364 pwaff = accept_affine(s, isl_set_get_space(dom), v);
2366 if (isl_stream_eat(s, ']'))
2368 if (isl_stream_eat(s, '}'))
2375 isl_die(s->ctx, isl_error_invalid,
2376 "expecting single affine expression", goto error);
2377 if (!isl_set_plain_is_universe(pwaff->p[0].set))
2378 isl_die(s->ctx, isl_error_invalid,
2379 "expecting universe domain", goto error);
2381 aff = isl_aff_copy(pwaff->p[0].aff);
2384 isl_pw_aff_free(pwaff);
2389 isl_pw_aff_free(pwaff);
2394 /* Is the next token an identifer not in "v"?
2396 static int next_is_fresh_ident(struct isl_stream *s, struct vars *v)
2400 struct isl_token *tok;
2402 tok = isl_stream_next_token(s);
2405 fresh = tok->type == ISL_TOKEN_IDENT && vars_pos(v, tok->u.s, -1) >= n;
2406 isl_stream_push_token(s, tok);
2408 vars_drop(v, v->n - n);
2413 /* First read the domain of the affine expression, which may be
2414 * a parameter space or a set.
2415 * The tricky part is that we don't know if the domain is a set or not,
2416 * so when we are trying to read the domain, we may actually be reading
2417 * the affine expression itself (defined on a parameter domains)
2418 * If the tuple we are reading is named, we assume it's the domain.
2419 * Also, if inside the tuple, the first thing we find is a nested tuple
2420 * or a new identifier, we again assume it's the domain.
2421 * Otherwise, we assume we are reading an affine expression.
2423 static __isl_give isl_set *read_aff_domain(struct isl_stream *s,
2424 __isl_take isl_set *dom, struct vars *v)
2426 struct isl_token *tok;
2428 tok = isl_stream_next_token(s);
2429 if (tok && (tok->type == ISL_TOKEN_IDENT || tok->is_keyword)) {
2430 isl_stream_push_token(s, tok);
2431 return read_tuple(s, dom, isl_dim_set, v);
2433 if (!tok || tok->type != '[') {
2434 isl_stream_error(s, tok, "expecting '['");
2437 if (next_is_tuple(s) || next_is_fresh_ident(s, v)) {
2438 isl_stream_push_token(s, tok);
2439 dom = read_tuple(s, dom, isl_dim_set, v);
2441 isl_stream_push_token(s, tok);
2446 isl_stream_push_token(s, tok);
2452 /* Read an affine expression from "s".
2453 * We first read the domain of the affine expression, which may be
2454 * a parameter space or a set, and then call read_aff_with_dom.
2456 __isl_give isl_aff *isl_stream_read_aff(struct isl_stream *s)
2459 isl_set *dom = NULL;
2461 v = vars_new(s->ctx);
2465 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2466 if (next_is_tuple(s)) {
2467 dom = read_tuple(s, dom, isl_dim_param, v);
2468 if (isl_stream_eat(s, ISL_TOKEN_TO))
2471 if (isl_stream_eat(s, '{'))
2474 dom = read_aff_domain(s, dom, v);
2475 return read_aff_with_dom(s, dom, v);
2482 /* Read a piecewise affine expression from "s" with domain (space) "dom".
2484 static __isl_give isl_pw_aff *read_pw_aff_with_dom(struct isl_stream *s,
2485 __isl_take isl_set *dom, struct vars *v)
2487 isl_pw_aff *pwaff = NULL;
2489 if (!isl_set_is_params(dom) && isl_stream_eat(s, ISL_TOKEN_TO))
2492 if (isl_stream_eat(s, '['))
2495 pwaff = accept_affine(s, isl_set_get_space(dom), v);
2497 if (isl_stream_eat(s, ']'))
2500 dom = read_optional_disjuncts(s, dom, v);
2501 pwaff = isl_pw_aff_intersect_domain(pwaff, dom);
2506 isl_pw_aff_free(pwaff);
2510 __isl_give isl_pw_aff *isl_stream_read_pw_aff(struct isl_stream *s)
2513 isl_set *dom = NULL;
2515 isl_pw_aff *pa = NULL;
2518 v = vars_new(s->ctx);
2522 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2523 if (next_is_tuple(s)) {
2524 dom = read_tuple(s, dom, isl_dim_param, v);
2525 if (isl_stream_eat(s, ISL_TOKEN_TO))
2528 if (isl_stream_eat(s, '{'))
2532 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2533 pa = read_pw_aff_with_dom(s, aff_dom, v);
2534 vars_drop(v, v->n - n);
2536 while (isl_stream_eat_if_available(s, ';')) {
2540 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2541 pa_i = read_pw_aff_with_dom(s, aff_dom, v);
2542 vars_drop(v, v->n - n);
2544 pa = isl_pw_aff_add(pa, pa_i);
2547 if (isl_stream_eat(s, '}'))
2556 isl_pw_aff_free(pa);
2560 __isl_give isl_aff *isl_aff_read_from_str(isl_ctx *ctx, const char *str)
2563 struct isl_stream *s = isl_stream_new_str(ctx, str);
2566 aff = isl_stream_read_aff(s);
2571 __isl_give isl_pw_aff *isl_pw_aff_read_from_str(isl_ctx *ctx, const char *str)
2574 struct isl_stream *s = isl_stream_new_str(ctx, str);
2577 pa = isl_stream_read_pw_aff(s);
2582 /* Read an isl_pw_multi_aff from "s".
2583 * We currently read a generic object and if it turns out to be a set or
2584 * a map, we convert that to an isl_pw_multi_aff.
2585 * It would be more efficient if we were to construct the isl_pw_multi_aff
2588 __isl_give isl_pw_multi_aff *isl_stream_read_pw_multi_aff(struct isl_stream *s)
2596 if (obj.type == isl_obj_map)
2597 return isl_pw_multi_aff_from_map(obj.v);
2598 if (obj.type == isl_obj_set)
2599 return isl_pw_multi_aff_from_set(obj.v);
2601 obj.type->free(obj.v);
2602 isl_die(s->ctx, isl_error_invalid, "unexpected object type",
2606 __isl_give isl_pw_multi_aff *isl_pw_multi_aff_read_from_str(isl_ctx *ctx,
2609 isl_pw_multi_aff *pma;
2610 struct isl_stream *s = isl_stream_new_str(ctx, str);
2613 pma = isl_stream_read_pw_multi_aff(s);
2618 /* Read a multi-affine expression from "s".
2619 * We call isl_stream_read_pw_multi_aff to parse a possibly piecewise
2620 * multi-affine expression and then check that the result is
2621 * a single multi-affine expression on a universe domain.
2623 __isl_give isl_multi_aff *isl_stream_read_multi_aff(struct isl_stream *s)
2625 isl_pw_multi_aff *pma;
2626 isl_multi_aff *maff;
2628 pma = isl_stream_read_pw_multi_aff(s);
2632 isl_die(s->ctx, isl_error_invalid,
2633 "expecting single list of affine expressions",
2634 return isl_pw_multi_aff_free(pma));
2635 if (!isl_set_plain_is_universe(pma->p[0].set))
2636 isl_die(s->ctx, isl_error_invalid, "expecting universe domain",
2637 return isl_pw_multi_aff_free(pma));
2638 maff = isl_multi_aff_copy(pma->p[0].maff);
2639 isl_pw_multi_aff_free(pma);
2643 __isl_give isl_multi_aff *isl_multi_aff_read_from_str(isl_ctx *ctx,
2646 isl_multi_aff *maff;
2647 struct isl_stream *s = isl_stream_new_str(ctx, str);
2650 maff = isl_stream_read_multi_aff(s);
2655 __isl_give isl_union_pw_qpolynomial *isl_stream_read_union_pw_qpolynomial(
2656 struct isl_stream *s)
2661 if (obj.type == isl_obj_pw_qpolynomial) {
2662 obj.type = isl_obj_union_pw_qpolynomial;
2663 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
2666 isl_assert(s->ctx, obj.type == isl_obj_union_pw_qpolynomial,
2671 obj.type->free(obj.v);
2675 __isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_read_from_str(
2676 isl_ctx *ctx, const char *str)
2678 isl_union_pw_qpolynomial *upwqp;
2679 struct isl_stream *s = isl_stream_new_str(ctx, str);
2682 upwqp = isl_stream_read_union_pw_qpolynomial(s);