2 * Copyright 2008-2009 Katholieke Universiteit Leuven
3 * Copyright 2010 INRIA Saclay
4 * Copyright 2012 Ecole Normale Superieure
6 * Use of this software is governed by the MIT license
8 * Written by Sven Verdoolaege, K.U.Leuven, Departement
9 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
10 * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
11 * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
12 * and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
18 #include <isl_ctx_private.h>
19 #include <isl_map_private.h>
22 #include <isl_stream_private.h>
24 #include "isl_polynomial_private.h"
25 #include <isl/union_map.h>
26 #include <isl_mat_private.h>
27 #include <isl_aff_private.h>
33 struct variable *next;
42 static struct vars *vars_new(struct isl_ctx *ctx)
45 v = isl_alloc_type(ctx, struct vars);
54 static void variable_free(struct variable *var)
57 struct variable *next = var->next;
64 static void vars_free(struct vars *v)
72 static void vars_drop(struct vars *v, int n)
83 struct variable *next = var->next;
91 static struct variable *variable_new(struct vars *v, const char *name, int len,
95 var = isl_calloc_type(v->ctx, struct variable);
98 var->name = strdup(name);
99 var->name[len] = '\0';
108 static int vars_pos(struct vars *v, const char *s, int len)
115 for (q = v->v; q; q = q->next) {
116 if (strncmp(q->name, s, len) == 0 && q->name[len] == '\0')
123 v->v = variable_new(v, s, len, v->n);
131 static int vars_add_anon(struct vars *v)
133 v->v = variable_new(v, "", 0, v->n);
142 /* Obtain next token, with some preprocessing.
143 * In particular, evaluate expressions of the form x^y,
144 * with x and y values.
146 static struct isl_token *next_token(struct isl_stream *s)
148 struct isl_token *tok, *tok2;
150 tok = isl_stream_next_token(s);
151 if (!tok || tok->type != ISL_TOKEN_VALUE)
153 if (!isl_stream_eat_if_available(s, '^'))
155 tok2 = isl_stream_next_token(s);
156 if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
157 isl_stream_error(s, tok2, "expecting constant value");
161 isl_int_pow_ui(tok->u.v, tok->u.v, isl_int_get_ui(tok2->u.v));
163 isl_token_free(tok2);
167 isl_token_free(tok2);
171 static int accept_cst_factor(struct isl_stream *s, isl_int *f)
173 struct isl_token *tok;
176 if (!tok || tok->type != ISL_TOKEN_VALUE) {
177 isl_stream_error(s, tok, "expecting constant value");
181 isl_int_mul(*f, *f, tok->u.v);
185 if (isl_stream_eat_if_available(s, '*'))
186 return accept_cst_factor(s, f);
194 /* Given an affine expression aff, return an affine expression
195 * for aff % d, with d the next token on the stream, which is
196 * assumed to be a constant.
198 * We introduce an integer division q = [aff/d] and the result
199 * is set to aff - d q.
201 static __isl_give isl_pw_aff *affine_mod(struct isl_stream *s,
202 struct vars *v, __isl_take isl_pw_aff *aff)
204 struct isl_token *tok;
208 if (!tok || tok->type != ISL_TOKEN_VALUE) {
209 isl_stream_error(s, tok, "expecting constant value");
213 q = isl_pw_aff_copy(aff);
214 q = isl_pw_aff_scale_down(q, tok->u.v);
215 q = isl_pw_aff_floor(q);
216 q = isl_pw_aff_scale(q, tok->u.v);
218 aff = isl_pw_aff_sub(aff, q);
223 isl_pw_aff_free(aff);
228 static __isl_give isl_pw_aff *accept_affine(struct isl_stream *s,
229 __isl_take isl_space *dim, struct vars *v);
230 static __isl_give isl_pw_aff_list *accept_affine_list(struct isl_stream *s,
231 __isl_take isl_space *dim, struct vars *v);
233 static __isl_give isl_pw_aff *accept_minmax(struct isl_stream *s,
234 __isl_take isl_space *dim, struct vars *v)
236 struct isl_token *tok;
237 isl_pw_aff_list *list = NULL;
240 tok = isl_stream_next_token(s);
243 min = tok->type == ISL_TOKEN_MIN;
246 if (isl_stream_eat(s, '('))
249 list = accept_affine_list(s, isl_space_copy(dim), v);
253 if (isl_stream_eat(s, ')'))
257 return min ? isl_pw_aff_list_min(list) : isl_pw_aff_list_max(list);
260 isl_pw_aff_list_free(list);
264 static __isl_give isl_pw_aff *accept_div(struct isl_stream *s,
265 __isl_take isl_space *dim, struct vars *v)
267 struct isl_token *tok;
270 isl_pw_aff *pwaff = NULL;
272 if (isl_stream_eat_if_available(s, ISL_TOKEN_FLOORD))
274 else if (isl_stream_eat_if_available(s, ISL_TOKEN_CEILD))
277 if (isl_stream_eat(s, '('))
280 if (isl_stream_eat(s, '['))
284 pwaff = accept_affine(s, isl_space_copy(dim), v);
287 if (isl_stream_eat(s, ','))
293 if (tok->type != ISL_TOKEN_VALUE) {
294 isl_stream_error(s, tok, "expected denominator");
295 isl_stream_push_token(s, tok);
298 isl_pw_aff_scale_down(pwaff, tok->u.v);
303 pwaff = isl_pw_aff_ceil(pwaff);
305 pwaff = isl_pw_aff_floor(pwaff);
308 if (isl_stream_eat(s, ')'))
311 if (isl_stream_eat(s, ']'))
319 isl_pw_aff_free(pwaff);
323 static __isl_give isl_pw_aff *accept_affine_factor(struct isl_stream *s,
324 __isl_take isl_space *dim, struct vars *v)
326 struct isl_token *tok = NULL;
327 isl_pw_aff *res = NULL;
331 isl_stream_error(s, NULL, "unexpected EOF");
335 if (tok->type == ISL_TOKEN_AFF) {
336 res = isl_pw_aff_copy(tok->u.pwaff);
338 } else if (tok->type == ISL_TOKEN_IDENT) {
340 int pos = vars_pos(v, tok->u.s, -1);
346 isl_stream_error(s, tok, "unknown identifier");
350 aff = isl_aff_zero_on_domain(isl_local_space_from_space(isl_space_copy(dim)));
353 isl_int_set_si(aff->v->el[2 + pos], 1);
354 res = isl_pw_aff_from_aff(aff);
356 } else if (tok->type == ISL_TOKEN_VALUE) {
357 if (isl_stream_eat_if_available(s, '*')) {
358 res = accept_affine_factor(s, isl_space_copy(dim), v);
359 res = isl_pw_aff_scale(res, tok->u.v);
363 ls = isl_local_space_from_space(isl_space_copy(dim));
364 aff = isl_aff_zero_on_domain(ls);
365 aff = isl_aff_add_constant(aff, tok->u.v);
366 res = isl_pw_aff_from_aff(aff);
369 } else if (tok->type == '(') {
372 res = accept_affine(s, isl_space_copy(dim), v);
375 if (isl_stream_eat(s, ')'))
377 } else if (tok->type == '[' ||
378 tok->type == ISL_TOKEN_FLOORD ||
379 tok->type == ISL_TOKEN_CEILD) {
380 isl_stream_push_token(s, tok);
382 res = accept_div(s, isl_space_copy(dim), v);
383 } else if (tok->type == ISL_TOKEN_MIN || tok->type == ISL_TOKEN_MAX) {
384 isl_stream_push_token(s, tok);
386 res = accept_minmax(s, isl_space_copy(dim), v);
388 isl_stream_error(s, tok, "expecting factor");
391 if (isl_stream_eat_if_available(s, '%') ||
392 isl_stream_eat_if_available(s, ISL_TOKEN_MOD)) {
394 return affine_mod(s, v, res);
396 if (isl_stream_eat_if_available(s, '*')) {
399 isl_int_set_si(f, 1);
400 if (accept_cst_factor(s, &f) < 0) {
404 res = isl_pw_aff_scale(res, f);
407 if (isl_stream_eat_if_available(s, '/')) {
410 isl_int_set_si(f, 1);
411 if (accept_cst_factor(s, &f) < 0) {
415 res = isl_pw_aff_scale_down(res, f);
424 isl_pw_aff_free(res);
429 static __isl_give isl_pw_aff *add_cst(__isl_take isl_pw_aff *pwaff, isl_int v)
434 space = isl_pw_aff_get_domain_space(pwaff);
435 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
436 aff = isl_aff_add_constant(aff, v);
438 return isl_pw_aff_add(pwaff, isl_pw_aff_from_aff(aff));
441 static __isl_give isl_pw_aff *accept_affine(struct isl_stream *s,
442 __isl_take isl_space *dim, struct vars *v)
444 struct isl_token *tok = NULL;
449 ls = isl_local_space_from_space(isl_space_copy(dim));
450 res = isl_pw_aff_from_aff(isl_aff_zero_on_domain(ls));
457 isl_stream_error(s, NULL, "unexpected EOF");
460 if (tok->type == '-') {
465 if (tok->type == '(' || tok->type == '[' ||
466 tok->type == ISL_TOKEN_MIN || tok->type == ISL_TOKEN_MAX ||
467 tok->type == ISL_TOKEN_FLOORD ||
468 tok->type == ISL_TOKEN_CEILD ||
469 tok->type == ISL_TOKEN_IDENT ||
470 tok->type == ISL_TOKEN_AFF) {
472 isl_stream_push_token(s, tok);
474 term = accept_affine_factor(s, isl_space_copy(dim), v);
476 res = isl_pw_aff_sub(res, term);
478 res = isl_pw_aff_add(res, term);
482 } else if (tok->type == ISL_TOKEN_VALUE) {
484 isl_int_neg(tok->u.v, tok->u.v);
485 if (isl_stream_eat_if_available(s, '*') ||
486 isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
488 term = accept_affine_factor(s,
489 isl_space_copy(dim), v);
490 term = isl_pw_aff_scale(term, tok->u.v);
491 res = isl_pw_aff_add(res, term);
495 res = add_cst(res, tok->u.v);
499 isl_stream_error(s, tok, "unexpected isl_token");
500 isl_stream_push_token(s, tok);
501 isl_pw_aff_free(res);
508 if (tok && tok->type == '-') {
511 } else if (tok && tok->type == '+') {
514 } else if (tok && tok->type == ISL_TOKEN_VALUE &&
515 isl_int_is_neg(tok->u.v)) {
516 isl_stream_push_token(s, tok);
519 isl_stream_push_token(s, tok);
529 isl_pw_aff_free(res);
533 static int is_comparator(struct isl_token *tok)
551 static struct isl_map *read_disjuncts(struct isl_stream *s,
552 struct vars *v, __isl_take isl_map *map);
553 static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
554 __isl_take isl_space *dim, struct vars *v);
556 /* Accept a ternary operator, given the first argument.
558 static __isl_give isl_pw_aff *accept_ternary(struct isl_stream *s,
559 __isl_take isl_map *cond, struct vars *v)
562 isl_pw_aff *pwaff1 = NULL, *pwaff2 = NULL, *pa_cond;
567 if (isl_stream_eat(s, '?'))
570 dim = isl_space_wrap(isl_map_get_space(cond));
571 pwaff1 = accept_extended_affine(s, dim, v);
575 if (isl_stream_eat(s, ':'))
578 dim = isl_pw_aff_get_domain_space(pwaff1);
579 pwaff2 = accept_extended_affine(s, dim, v);
583 pa_cond = isl_set_indicator_function(isl_map_wrap(cond));
584 return isl_pw_aff_cond(pa_cond, pwaff1, pwaff2);
587 isl_pw_aff_free(pwaff1);
588 isl_pw_aff_free(pwaff2);
592 /* Accept an affine expression that may involve ternary operators.
593 * We first read an affine expression.
594 * If it is not followed by a comparison operator, we simply return it.
595 * Otherwise, we assume the affine epxression is part of the first
596 * argument of a ternary operator and try to parse that.
598 static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
599 __isl_take isl_space *dim, struct vars *v)
604 struct isl_token *tok;
605 int line = -1, col = -1;
608 tok = isl_stream_next_token(s);
612 isl_stream_push_token(s, tok);
615 pwaff = accept_affine(s, dim, v);
619 tok = isl_stream_next_token(s);
621 return isl_pw_aff_free(pwaff);
623 is_comp = is_comparator(tok);
624 isl_stream_push_token(s, tok);
628 tok = isl_token_new(s->ctx, line, col, 0);
630 return isl_pw_aff_free(pwaff);
631 tok->type = ISL_TOKEN_AFF;
632 tok->u.pwaff = pwaff;
634 space = isl_pw_aff_get_domain_space(pwaff);
635 cond = isl_map_universe(isl_space_unwrap(space));
637 isl_stream_push_token(s, tok);
639 cond = read_disjuncts(s, v, cond);
641 return accept_ternary(s, cond, v);
644 static __isl_give isl_map *read_var_def(struct isl_stream *s,
645 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v)
651 if (type == isl_dim_param)
652 pos = isl_map_dim(map, isl_dim_param);
654 pos = isl_map_dim(map, isl_dim_in);
655 if (type == isl_dim_out)
656 pos += isl_map_dim(map, isl_dim_out);
661 def = accept_extended_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
662 def_map = isl_map_from_pw_aff(def);
663 def_map = isl_map_equate(def_map, type, pos, isl_dim_out, 0);
664 def_map = isl_set_unwrap(isl_map_domain(def_map));
666 map = isl_map_intersect(map, def_map);
671 static __isl_give isl_pw_aff_list *accept_affine_list(struct isl_stream *s,
672 __isl_take isl_space *dim, struct vars *v)
675 isl_pw_aff_list *list;
676 struct isl_token *tok = NULL;
678 pwaff = accept_affine(s, isl_space_copy(dim), v);
679 list = isl_pw_aff_list_from_pw_aff(pwaff);
684 tok = isl_stream_next_token(s);
686 isl_stream_error(s, NULL, "unexpected EOF");
689 if (tok->type != ',') {
690 isl_stream_push_token(s, tok);
695 pwaff = accept_affine(s, isl_space_copy(dim), v);
696 list = isl_pw_aff_list_concat(list,
697 isl_pw_aff_list_from_pw_aff(pwaff));
706 isl_pw_aff_list_free(list);
710 static __isl_give isl_map *read_defined_var_list(struct isl_stream *s,
711 struct vars *v, __isl_take isl_map *map)
713 struct isl_token *tok;
715 while ((tok = isl_stream_next_token(s)) != NULL) {
719 if (tok->type != ISL_TOKEN_IDENT)
722 p = vars_pos(v, tok->u.s, -1);
726 isl_stream_error(s, tok, "expecting unique identifier");
730 map = isl_map_add_dims(map, isl_dim_out, 1);
733 tok = isl_stream_next_token(s);
734 if (tok && tok->type == '=') {
736 map = read_var_def(s, map, isl_dim_out, v);
737 tok = isl_stream_next_token(s);
740 if (!tok || tok->type != ',')
746 isl_stream_push_token(s, tok);
755 static int next_is_tuple(struct isl_stream *s)
757 struct isl_token *tok;
760 tok = isl_stream_next_token(s);
763 if (tok->type == '[') {
764 isl_stream_push_token(s, tok);
767 if (tok->type != ISL_TOKEN_IDENT && !tok->is_keyword) {
768 isl_stream_push_token(s, tok);
772 is_tuple = isl_stream_next_token_is(s, '[');
774 isl_stream_push_token(s, tok);
779 /* Allocate an initial tuple with zero dimensions and an anonymous,
780 * unstructured space.
781 * A tuple is represented as an isl_multi_pw_aff.
782 * The range space is the space of the tuple.
783 * The domain space is an anonymous space
784 * with a dimension for each variable in the set of variables in "v".
785 * If a given dimension is not defined in terms of earlier dimensions in
786 * the input, then the corresponding isl_pw_aff is set equal to one time
787 * the variable corresponding to the dimension being defined.
789 static __isl_give isl_multi_pw_aff *tuple_alloc(struct vars *v)
791 return isl_multi_pw_aff_alloc(isl_space_alloc(v->ctx, 0, v->n, 0));
794 /* Is "pa" an expression in term of earlier dimensions?
795 * The alternative is that the dimension is defined to be equal to itself,
796 * meaning that it has a universe domain and an expression that depends
797 * on itself. "i" is the position of the expression in a sequence
798 * of "n" expressions. The final dimensions of "pa" correspond to
799 * these "n" expressions.
801 static int pw_aff_is_expr(__isl_keep isl_pw_aff *pa, int i, int n)
809 if (!isl_set_plain_is_universe(pa->p[0].set))
813 if (isl_int_is_zero(aff->v->el[aff->v->size - n + i]))
818 /* Does the tuple contain any dimensions that are defined
819 * in terms of earlier dimensions?
821 static int tuple_has_expr(__isl_keep isl_multi_pw_aff *tuple)
829 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
830 for (i = 0; i < n; ++i) {
831 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
832 has_expr = pw_aff_is_expr(pa, i, n);
834 if (has_expr < 0 || has_expr)
841 /* Add a dimension to the given tuple.
842 * The dimension is initially undefined, so it is encoded
843 * as one times itself.
845 static __isl_give isl_multi_pw_aff *tuple_add_dim(
846 __isl_take isl_multi_pw_aff *tuple, struct vars *v)
852 tuple = isl_multi_pw_aff_add_dims(tuple, isl_dim_in, 1);
853 space = isl_multi_pw_aff_get_domain_space(tuple);
854 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
855 aff = isl_aff_add_coefficient_si(aff, isl_dim_in, v->n, 1);
856 pa = isl_pw_aff_from_aff(aff);
857 tuple = isl_multi_pw_aff_flat_range_product(tuple,
858 isl_multi_pw_aff_from_pw_aff(pa));
863 /* Set the name of dimension "pos" in "tuple" to "name".
864 * During printing, we add primes if the same name appears more than once
865 * to distinguish the occurrences. Here, we remove those primes from "name"
866 * before setting the name of the dimension.
868 static __isl_give isl_multi_pw_aff *tuple_set_dim_name(
869 __isl_take isl_multi_pw_aff *tuple, int pos, char *name)
876 prime = strchr(name, '\'');
879 tuple = isl_multi_pw_aff_set_dim_name(tuple, isl_dim_set, pos, name);
886 /* Read an affine expression from "s" and replace the definition
887 * of dimension "pos" in "tuple" by this expression.
889 * accept_extended_affine requires a wrapped space as input.
890 * The domain space of "tuple", on the other hand is an anonymous space,
891 * so we have to adjust the space of the isl_pw_aff before adding it
894 static __isl_give isl_multi_pw_aff *read_tuple_var_def(struct isl_stream *s,
895 __isl_take isl_multi_pw_aff *tuple, int pos, struct vars *v)
900 space = isl_space_wrap(isl_space_alloc(s->ctx, 0, v->n, 0));
901 def = accept_extended_affine(s, space, v);
902 space = isl_space_set_alloc(s->ctx, 0, v->n);
903 def = isl_pw_aff_reset_domain_space(def, space);
904 tuple = isl_multi_pw_aff_set_pw_aff(tuple, pos, def);
909 /* Read a list of variables and/or affine expressions and return the list
910 * as an isl_multi_pw_aff.
911 * The elements in the list are separated by either "," or "][".
913 static __isl_give isl_multi_pw_aff *read_tuple_var_list(struct isl_stream *s,
917 struct isl_token *tok;
918 isl_multi_pw_aff *res;
920 res = tuple_alloc(v);
922 if (isl_stream_next_token_is(s, ']'))
925 while ((tok = next_token(s)) != NULL) {
928 res = tuple_add_dim(res, v);
930 if (tok->type == ISL_TOKEN_IDENT) {
932 int p = vars_pos(v, tok->u.s, -1);
939 res = tuple_set_dim_name(res, i, v->v->name);
941 if (isl_stream_eat_if_available(s, '='))
942 res = read_tuple_var_def(s, res, i, v);
944 isl_stream_push_token(s, tok);
946 if (vars_add_anon(v) < 0)
948 res = read_tuple_var_def(s, res, i, v);
951 tok = isl_stream_next_token(s);
952 if (tok && tok->type == ']' &&
953 isl_stream_next_token_is(s, '[')) {
955 tok = isl_stream_next_token(s);
956 } else if (!tok || tok->type != ',')
963 isl_stream_push_token(s, tok);
968 return isl_multi_pw_aff_free(res);
971 /* Read a tuple and represent it as an isl_multi_pw_aff. See tuple_alloc.
973 static __isl_give isl_multi_pw_aff *read_tuple(struct isl_stream *s,
976 struct isl_token *tok;
978 isl_multi_pw_aff *res = NULL;
980 tok = isl_stream_next_token(s);
983 if (tok->type == ISL_TOKEN_IDENT || tok->is_keyword) {
984 name = strdup(tok->u.s);
989 isl_stream_push_token(s, tok);
990 if (isl_stream_eat(s, '['))
992 if (next_is_tuple(s)) {
993 isl_multi_pw_aff *out;
995 res = read_tuple(s, v);
996 if (isl_stream_eat(s, ISL_TOKEN_TO))
998 out = read_tuple(s, v);
999 n = isl_multi_pw_aff_dim(out, isl_dim_out);
1000 res = isl_multi_pw_aff_add_dims(res, isl_dim_in, n);
1001 res = isl_multi_pw_aff_range_product(res, out);
1003 res = read_tuple_var_list(s, v);
1004 if (isl_stream_eat(s, ']'))
1008 res = isl_multi_pw_aff_set_tuple_name(res, isl_dim_out, name);
1015 return isl_multi_pw_aff_free(res);
1018 /* Read a tuple from "s" and add it to "map".
1019 * The tuple is initially represented as an isl_multi_pw_aff.
1020 * We first create the appropriate space in "map" based on the range
1021 * space of this isl_multi_pw_aff. Then, we add equalities based
1022 * on the affine expressions. These live in an anonymous space,
1023 * however, so we first need to reset the space to that of "map".
1025 static __isl_give isl_map *read_map_tuple(struct isl_stream *s,
1026 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v)
1029 isl_multi_pw_aff *tuple;
1030 isl_space *space = NULL;
1032 tuple = read_tuple(s, v);
1036 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
1037 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
1039 if (type == isl_dim_param) {
1040 if (isl_space_has_tuple_name(space, isl_dim_set) ||
1041 isl_space_is_wrapping(space)) {
1042 isl_die(s->ctx, isl_error_invalid,
1043 "parameter tuples cannot be named or nested",
1046 map = isl_map_add_dims(map, type, n);
1047 for (i = 0; i < n; ++i) {
1049 if (!isl_space_has_dim_name(space, isl_dim_set, i))
1050 isl_die(s->ctx, isl_error_invalid,
1051 "parameters must be named",
1053 id = isl_space_get_dim_id(space, isl_dim_set, i);
1054 map = isl_map_set_dim_id(map, isl_dim_param, i, id);
1056 } else if (type == isl_dim_in) {
1059 set = isl_set_universe(isl_space_copy(space));
1060 set = isl_set_intersect_params(set, isl_map_params(map));
1061 map = isl_map_from_domain(set);
1065 set = isl_set_universe(isl_space_copy(space));
1066 map = isl_map_from_domain_and_range(isl_map_domain(map), set);
1069 for (i = 0; i < n; ++i) {
1076 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
1077 space = isl_pw_aff_get_domain_space(pa);
1078 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
1079 aff = isl_aff_add_coefficient_si(aff,
1080 isl_dim_in, v->n - n + i, -1);
1081 pa = isl_pw_aff_add(pa, isl_pw_aff_from_aff(aff));
1082 set = isl_pw_aff_zero_set(pa);
1083 map_i = isl_map_from_range(set);
1084 map_i = isl_map_reset_space(map_i, isl_map_get_space(map));
1085 map = isl_map_intersect(map, map_i);
1088 isl_space_free(space);
1089 isl_multi_pw_aff_free(tuple);
1092 isl_space_free(space);
1093 isl_multi_pw_aff_free(tuple);
1098 static __isl_give isl_set *construct_constraints(
1099 __isl_take isl_set *set, int type,
1100 __isl_keep isl_pw_aff_list *left, __isl_keep isl_pw_aff_list *right)
1104 if (type == ISL_TOKEN_LE)
1105 cond = isl_pw_aff_list_le_set(isl_pw_aff_list_copy(left),
1106 isl_pw_aff_list_copy(right));
1107 else if (type == ISL_TOKEN_GE)
1108 cond = isl_pw_aff_list_ge_set(isl_pw_aff_list_copy(left),
1109 isl_pw_aff_list_copy(right));
1110 else if (type == ISL_TOKEN_LT)
1111 cond = isl_pw_aff_list_lt_set(isl_pw_aff_list_copy(left),
1112 isl_pw_aff_list_copy(right));
1113 else if (type == ISL_TOKEN_GT)
1114 cond = isl_pw_aff_list_gt_set(isl_pw_aff_list_copy(left),
1115 isl_pw_aff_list_copy(right));
1116 else if (type == ISL_TOKEN_NE)
1117 cond = isl_pw_aff_list_ne_set(isl_pw_aff_list_copy(left),
1118 isl_pw_aff_list_copy(right));
1120 cond = isl_pw_aff_list_eq_set(isl_pw_aff_list_copy(left),
1121 isl_pw_aff_list_copy(right));
1123 return isl_set_intersect(set, cond);
1126 static __isl_give isl_map *add_constraint(struct isl_stream *s,
1127 struct vars *v, __isl_take isl_map *map)
1129 struct isl_token *tok = NULL;
1130 isl_pw_aff_list *list1 = NULL, *list2 = NULL;
1133 set = isl_map_wrap(map);
1134 list1 = accept_affine_list(s, isl_set_get_space(set), v);
1137 tok = isl_stream_next_token(s);
1138 if (!is_comparator(tok)) {
1139 isl_stream_error(s, tok, "missing operator");
1141 isl_stream_push_token(s, tok);
1146 list2 = accept_affine_list(s, isl_set_get_space(set), v);
1150 set = construct_constraints(set, tok->type, list1, list2);
1151 isl_token_free(tok);
1152 isl_pw_aff_list_free(list1);
1155 tok = isl_stream_next_token(s);
1156 if (!is_comparator(tok)) {
1158 isl_stream_push_token(s, tok);
1162 isl_pw_aff_list_free(list1);
1164 return isl_set_unwrap(set);
1167 isl_token_free(tok);
1168 isl_pw_aff_list_free(list1);
1169 isl_pw_aff_list_free(list2);
1174 static __isl_give isl_map *read_exists(struct isl_stream *s,
1175 struct vars *v, __isl_take isl_map *map)
1178 int seen_paren = isl_stream_eat_if_available(s, '(');
1180 map = isl_map_from_domain(isl_map_wrap(map));
1181 map = read_defined_var_list(s, v, map);
1183 if (isl_stream_eat(s, ':'))
1186 map = read_disjuncts(s, v, map);
1187 map = isl_set_unwrap(isl_map_domain(map));
1189 vars_drop(v, v->n - n);
1190 if (seen_paren && isl_stream_eat(s, ')'))
1199 /* Parse an expression between parentheses and push the result
1200 * back on the stream.
1202 * The parsed expression may be either an affine expression
1203 * or a condition. The first type is pushed onto the stream
1204 * as an isl_pw_aff, while the second is pushed as an isl_map.
1206 * If the initial token indicates the start of a condition,
1207 * we parse it as such.
1208 * Otherwise, we first parse an affine expression and push
1209 * that onto the stream. If the affine expression covers the
1210 * entire expression between parentheses, we return.
1211 * Otherwise, we assume that the affine expression is the
1212 * start of a condition and continue parsing.
1214 static int resolve_paren_expr(struct isl_stream *s,
1215 struct vars *v, __isl_take isl_map *map)
1217 struct isl_token *tok, *tok2;
1221 tok = isl_stream_next_token(s);
1222 if (!tok || tok->type != '(')
1225 if (isl_stream_next_token_is(s, '('))
1226 if (resolve_paren_expr(s, v, isl_map_copy(map)))
1229 if (isl_stream_next_token_is(s, ISL_TOKEN_EXISTS) ||
1230 isl_stream_next_token_is(s, ISL_TOKEN_NOT) ||
1231 isl_stream_next_token_is(s, ISL_TOKEN_TRUE) ||
1232 isl_stream_next_token_is(s, ISL_TOKEN_FALSE) ||
1233 isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1234 map = read_disjuncts(s, v, map);
1235 if (isl_stream_eat(s, ')'))
1237 tok->type = ISL_TOKEN_MAP;
1239 isl_stream_push_token(s, tok);
1243 tok2 = isl_stream_next_token(s);
1248 isl_stream_push_token(s, tok2);
1250 pwaff = accept_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
1254 tok2 = isl_token_new(s->ctx, line, col, 0);
1257 tok2->type = ISL_TOKEN_AFF;
1258 tok2->u.pwaff = pwaff;
1260 if (isl_stream_eat_if_available(s, ')')) {
1261 isl_stream_push_token(s, tok2);
1262 isl_token_free(tok);
1267 isl_stream_push_token(s, tok2);
1269 map = read_disjuncts(s, v, map);
1270 if (isl_stream_eat(s, ')'))
1273 tok->type = ISL_TOKEN_MAP;
1275 isl_stream_push_token(s, tok);
1279 isl_pw_aff_free(pwaff);
1281 isl_token_free(tok);
1286 static __isl_give isl_map *read_conjunct(struct isl_stream *s,
1287 struct vars *v, __isl_take isl_map *map)
1289 if (isl_stream_next_token_is(s, '('))
1290 if (resolve_paren_expr(s, v, isl_map_copy(map)))
1293 if (isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1294 struct isl_token *tok;
1295 tok = isl_stream_next_token(s);
1299 map = isl_map_copy(tok->u.map);
1300 isl_token_free(tok);
1304 if (isl_stream_eat_if_available(s, ISL_TOKEN_EXISTS))
1305 return read_exists(s, v, map);
1307 if (isl_stream_eat_if_available(s, ISL_TOKEN_TRUE))
1310 if (isl_stream_eat_if_available(s, ISL_TOKEN_FALSE)) {
1311 isl_space *dim = isl_map_get_space(map);
1313 return isl_map_empty(dim);
1316 return add_constraint(s, v, map);
1322 static __isl_give isl_map *read_conjuncts(struct isl_stream *s,
1323 struct vars *v, __isl_take isl_map *map)
1328 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1329 res = read_conjunct(s, v, isl_map_copy(map));
1331 res = isl_map_subtract(isl_map_copy(map), res);
1333 while (isl_stream_eat_if_available(s, ISL_TOKEN_AND)) {
1336 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1337 res_i = read_conjunct(s, v, isl_map_copy(map));
1339 res = isl_map_subtract(res, res_i);
1341 res = isl_map_intersect(res, res_i);
1348 static struct isl_map *read_disjuncts(struct isl_stream *s,
1349 struct vars *v, __isl_take isl_map *map)
1353 if (isl_stream_next_token_is(s, '}')) {
1354 isl_space *dim = isl_map_get_space(map);
1356 return isl_map_universe(dim);
1359 res = read_conjuncts(s, v, isl_map_copy(map));
1360 while (isl_stream_eat_if_available(s, ISL_TOKEN_OR)) {
1363 res_i = read_conjuncts(s, v, isl_map_copy(map));
1364 res = isl_map_union(res, res_i);
1371 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map *bmap, int pos)
1373 if (pos < isl_basic_map_dim(bmap, isl_dim_out))
1374 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1375 isl_basic_map_dim(bmap, isl_dim_in) + pos;
1376 pos -= isl_basic_map_dim(bmap, isl_dim_out);
1378 if (pos < isl_basic_map_dim(bmap, isl_dim_in))
1379 return 1 + isl_basic_map_dim(bmap, isl_dim_param) + pos;
1380 pos -= isl_basic_map_dim(bmap, isl_dim_in);
1382 if (pos < isl_basic_map_dim(bmap, isl_dim_div))
1383 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1384 isl_basic_map_dim(bmap, isl_dim_in) +
1385 isl_basic_map_dim(bmap, isl_dim_out) + pos;
1386 pos -= isl_basic_map_dim(bmap, isl_dim_div);
1388 if (pos < isl_basic_map_dim(bmap, isl_dim_param))
1394 static __isl_give isl_basic_map *basic_map_read_polylib_constraint(
1395 struct isl_stream *s, __isl_take isl_basic_map *bmap)
1398 struct isl_token *tok;
1408 nparam = isl_basic_map_dim(bmap, isl_dim_param);
1409 dim = isl_basic_map_dim(bmap, isl_dim_out);
1411 tok = isl_stream_next_token(s);
1412 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1413 isl_stream_error(s, tok, "expecting coefficient");
1415 isl_stream_push_token(s, tok);
1418 if (!tok->on_new_line) {
1419 isl_stream_error(s, tok, "coefficient should appear on new line");
1420 isl_stream_push_token(s, tok);
1424 type = isl_int_get_si(tok->u.v);
1425 isl_token_free(tok);
1427 isl_assert(s->ctx, type == 0 || type == 1, goto error);
1429 k = isl_basic_map_alloc_equality(bmap);
1432 k = isl_basic_map_alloc_inequality(bmap);
1438 for (j = 0; j < 1 + isl_basic_map_total_dim(bmap); ++j) {
1440 tok = isl_stream_next_token(s);
1441 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1442 isl_stream_error(s, tok, "expecting coefficient");
1444 isl_stream_push_token(s, tok);
1447 if (tok->on_new_line) {
1448 isl_stream_error(s, tok,
1449 "coefficient should not appear on new line");
1450 isl_stream_push_token(s, tok);
1453 pos = polylib_pos_to_isl_pos(bmap, j);
1454 isl_int_set(c[pos], tok->u.v);
1455 isl_token_free(tok);
1460 isl_basic_map_free(bmap);
1464 static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s)
1467 struct isl_token *tok;
1468 struct isl_token *tok2;
1471 unsigned in = 0, out, local = 0;
1472 struct isl_basic_map *bmap = NULL;
1475 tok = isl_stream_next_token(s);
1477 isl_stream_error(s, NULL, "unexpected EOF");
1480 tok2 = isl_stream_next_token(s);
1482 isl_token_free(tok);
1483 isl_stream_error(s, NULL, "unexpected EOF");
1486 if (tok->type != ISL_TOKEN_VALUE || tok2->type != ISL_TOKEN_VALUE) {
1487 isl_stream_push_token(s, tok2);
1488 isl_stream_push_token(s, tok);
1489 isl_stream_error(s, NULL,
1490 "expecting constraint matrix dimensions");
1493 n_row = isl_int_get_si(tok->u.v);
1494 n_col = isl_int_get_si(tok2->u.v);
1495 on_new_line = tok2->on_new_line;
1496 isl_token_free(tok2);
1497 isl_token_free(tok);
1498 isl_assert(s->ctx, !on_new_line, return NULL);
1499 isl_assert(s->ctx, n_row >= 0, return NULL);
1500 isl_assert(s->ctx, n_col >= 2 + nparam, return NULL);
1501 tok = isl_stream_next_token_on_same_line(s);
1503 if (tok->type != ISL_TOKEN_VALUE) {
1504 isl_stream_error(s, tok,
1505 "expecting number of output dimensions");
1506 isl_stream_push_token(s, tok);
1509 out = isl_int_get_si(tok->u.v);
1510 isl_token_free(tok);
1512 tok = isl_stream_next_token_on_same_line(s);
1513 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1514 isl_stream_error(s, tok,
1515 "expecting number of input dimensions");
1517 isl_stream_push_token(s, tok);
1520 in = isl_int_get_si(tok->u.v);
1521 isl_token_free(tok);
1523 tok = isl_stream_next_token_on_same_line(s);
1524 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1525 isl_stream_error(s, tok,
1526 "expecting number of existentials");
1528 isl_stream_push_token(s, tok);
1531 local = isl_int_get_si(tok->u.v);
1532 isl_token_free(tok);
1534 tok = isl_stream_next_token_on_same_line(s);
1535 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1536 isl_stream_error(s, tok,
1537 "expecting number of parameters");
1539 isl_stream_push_token(s, tok);
1542 nparam = isl_int_get_si(tok->u.v);
1543 isl_token_free(tok);
1544 if (n_col != 1 + out + in + local + nparam + 1) {
1545 isl_stream_error(s, NULL,
1546 "dimensions don't match");
1550 out = n_col - 2 - nparam;
1551 bmap = isl_basic_map_alloc(s->ctx, nparam, in, out, local, n_row, n_row);
1555 for (i = 0; i < local; ++i) {
1556 int k = isl_basic_map_alloc_div(bmap);
1559 isl_seq_clr(bmap->div[k], 1 + 1 + nparam + in + out + local);
1562 for (i = 0; i < n_row; ++i)
1563 bmap = basic_map_read_polylib_constraint(s, bmap);
1565 tok = isl_stream_next_token_on_same_line(s);
1567 isl_stream_error(s, tok, "unexpected extra token on line");
1568 isl_stream_push_token(s, tok);
1572 bmap = isl_basic_map_simplify(bmap);
1573 bmap = isl_basic_map_finalize(bmap);
1576 isl_basic_map_free(bmap);
1580 static struct isl_map *map_read_polylib(struct isl_stream *s)
1582 struct isl_token *tok;
1583 struct isl_token *tok2;
1585 struct isl_map *map;
1587 tok = isl_stream_next_token(s);
1589 isl_stream_error(s, NULL, "unexpected EOF");
1592 tok2 = isl_stream_next_token_on_same_line(s);
1593 if (tok2 && tok2->type == ISL_TOKEN_VALUE) {
1594 isl_stream_push_token(s, tok2);
1595 isl_stream_push_token(s, tok);
1596 return isl_map_from_basic_map(basic_map_read_polylib(s));
1599 isl_stream_error(s, tok2, "unexpected token");
1600 isl_stream_push_token(s, tok2);
1601 isl_stream_push_token(s, tok);
1604 n = isl_int_get_si(tok->u.v);
1605 isl_token_free(tok);
1607 isl_assert(s->ctx, n >= 1, return NULL);
1609 map = isl_map_from_basic_map(basic_map_read_polylib(s));
1611 for (i = 1; map && i < n; ++i)
1612 map = isl_map_union(map,
1613 isl_map_from_basic_map(basic_map_read_polylib(s)));
1618 static int optional_power(struct isl_stream *s)
1621 struct isl_token *tok;
1623 tok = isl_stream_next_token(s);
1626 if (tok->type != '^') {
1627 isl_stream_push_token(s, tok);
1630 isl_token_free(tok);
1631 tok = isl_stream_next_token(s);
1632 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1633 isl_stream_error(s, tok, "expecting exponent");
1635 isl_stream_push_token(s, tok);
1638 pow = isl_int_get_si(tok->u.v);
1639 isl_token_free(tok);
1643 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1644 __isl_keep isl_map *map, struct vars *v);
1646 static __isl_give isl_pw_qpolynomial *read_factor(struct isl_stream *s,
1647 __isl_keep isl_map *map, struct vars *v)
1649 isl_pw_qpolynomial *pwqp;
1650 struct isl_token *tok;
1652 tok = next_token(s);
1654 isl_stream_error(s, NULL, "unexpected EOF");
1657 if (tok->type == '(') {
1660 isl_token_free(tok);
1661 pwqp = read_term(s, map, v);
1664 if (isl_stream_eat(s, ')'))
1666 pow = optional_power(s);
1667 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1668 } else if (tok->type == ISL_TOKEN_VALUE) {
1669 struct isl_token *tok2;
1670 tok2 = isl_stream_next_token(s);
1671 isl_qpolynomial *qp;
1672 if (tok2 && tok2->type == '/') {
1673 isl_token_free(tok2);
1674 tok2 = next_token(s);
1675 if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
1676 isl_stream_error(s, tok2, "expected denominator");
1677 isl_token_free(tok);
1678 isl_token_free(tok2);
1681 qp = isl_qpolynomial_rat_cst_on_domain(isl_map_get_space(map),
1682 tok->u.v, tok2->u.v);
1683 isl_token_free(tok2);
1685 isl_stream_push_token(s, tok2);
1686 qp = isl_qpolynomial_cst_on_domain(isl_map_get_space(map),
1689 isl_token_free(tok);
1690 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1691 } else if (tok->type == ISL_TOKEN_INFTY) {
1692 isl_qpolynomial *qp;
1693 isl_token_free(tok);
1694 qp = isl_qpolynomial_infty_on_domain(isl_map_get_space(map));
1695 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1696 } else if (tok->type == ISL_TOKEN_NAN) {
1697 isl_qpolynomial *qp;
1698 isl_token_free(tok);
1699 qp = isl_qpolynomial_nan_on_domain(isl_map_get_space(map));
1700 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1701 } else if (tok->type == ISL_TOKEN_IDENT) {
1703 int pos = vars_pos(v, tok->u.s, -1);
1705 isl_qpolynomial *qp;
1707 isl_token_free(tok);
1711 vars_drop(v, v->n - n);
1712 isl_stream_error(s, tok, "unknown identifier");
1713 isl_token_free(tok);
1716 isl_token_free(tok);
1717 pow = optional_power(s);
1718 qp = isl_qpolynomial_var_pow_on_domain(isl_map_get_space(map), pos, pow);
1719 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1720 } else if (tok->type == '[') {
1724 isl_stream_push_token(s, tok);
1725 pwaff = accept_div(s, isl_map_get_space(map), v);
1726 pow = optional_power(s);
1727 pwqp = isl_pw_qpolynomial_from_pw_aff(pwaff);
1728 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1729 } else if (tok->type == '-') {
1730 isl_token_free(tok);
1731 pwqp = read_factor(s, map, v);
1732 pwqp = isl_pw_qpolynomial_neg(pwqp);
1734 isl_stream_error(s, tok, "unexpected isl_token");
1735 isl_stream_push_token(s, tok);
1739 if (isl_stream_eat_if_available(s, '*') ||
1740 isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
1741 isl_pw_qpolynomial *pwqp2;
1743 pwqp2 = read_factor(s, map, v);
1744 pwqp = isl_pw_qpolynomial_mul(pwqp, pwqp2);
1749 isl_pw_qpolynomial_free(pwqp);
1753 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1754 __isl_keep isl_map *map, struct vars *v)
1756 struct isl_token *tok;
1757 isl_pw_qpolynomial *pwqp;
1759 pwqp = read_factor(s, map, v);
1762 tok = next_token(s);
1766 if (tok->type == '+') {
1767 isl_pw_qpolynomial *pwqp2;
1769 isl_token_free(tok);
1770 pwqp2 = read_factor(s, map, v);
1771 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1772 } else if (tok->type == '-') {
1773 isl_pw_qpolynomial *pwqp2;
1775 isl_token_free(tok);
1776 pwqp2 = read_factor(s, map, v);
1777 pwqp = isl_pw_qpolynomial_sub(pwqp, pwqp2);
1778 } else if (tok->type == ISL_TOKEN_VALUE &&
1779 isl_int_is_neg(tok->u.v)) {
1780 isl_pw_qpolynomial *pwqp2;
1782 isl_stream_push_token(s, tok);
1783 pwqp2 = read_factor(s, map, v);
1784 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1786 isl_stream_push_token(s, tok);
1794 static __isl_give isl_map *read_optional_disjuncts(struct isl_stream *s,
1795 __isl_take isl_map *map, struct vars *v)
1797 struct isl_token *tok;
1799 tok = isl_stream_next_token(s);
1801 isl_stream_error(s, NULL, "unexpected EOF");
1804 if (tok->type == ':' ||
1805 (tok->type == ISL_TOKEN_OR && !strcmp(tok->u.s, "|"))) {
1806 isl_token_free(tok);
1807 map = read_disjuncts(s, v, map);
1809 isl_stream_push_token(s, tok);
1817 static struct isl_obj obj_read_poly(struct isl_stream *s,
1818 __isl_take isl_map *map, struct vars *v, int n)
1820 struct isl_obj obj = { isl_obj_pw_qpolynomial, NULL };
1821 isl_pw_qpolynomial *pwqp;
1822 struct isl_set *set;
1824 pwqp = read_term(s, map, v);
1825 map = read_optional_disjuncts(s, map, v);
1826 set = isl_map_range(map);
1828 pwqp = isl_pw_qpolynomial_intersect_domain(pwqp, set);
1830 vars_drop(v, v->n - n);
1836 static struct isl_obj obj_read_poly_or_fold(struct isl_stream *s,
1837 __isl_take isl_set *set, struct vars *v, int n)
1839 struct isl_obj obj = { isl_obj_pw_qpolynomial_fold, NULL };
1840 isl_pw_qpolynomial *pwqp;
1841 isl_pw_qpolynomial_fold *pwf = NULL;
1843 if (!isl_stream_eat_if_available(s, ISL_TOKEN_MAX))
1844 return obj_read_poly(s, set, v, n);
1846 if (isl_stream_eat(s, '('))
1849 pwqp = read_term(s, set, v);
1850 pwf = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max, pwqp);
1852 while (isl_stream_eat_if_available(s, ',')) {
1853 isl_pw_qpolynomial_fold *pwf_i;
1854 pwqp = read_term(s, set, v);
1855 pwf_i = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max,
1857 pwf = isl_pw_qpolynomial_fold_fold(pwf, pwf_i);
1860 if (isl_stream_eat(s, ')'))
1863 set = read_optional_disjuncts(s, set, v);
1864 pwf = isl_pw_qpolynomial_fold_intersect_domain(pwf, set);
1866 vars_drop(v, v->n - n);
1872 isl_pw_qpolynomial_fold_free(pwf);
1873 obj.type = isl_obj_none;
1877 static int is_rational(struct isl_stream *s)
1879 struct isl_token *tok;
1881 tok = isl_stream_next_token(s);
1884 if (tok->type == ISL_TOKEN_RAT && isl_stream_next_token_is(s, ':')) {
1885 isl_token_free(tok);
1886 isl_stream_eat(s, ':');
1890 isl_stream_push_token(s, tok);
1895 static struct isl_obj obj_read_body(struct isl_stream *s,
1896 __isl_take isl_map *map, struct vars *v)
1898 struct isl_token *tok;
1899 struct isl_obj obj = { isl_obj_set, NULL };
1903 map = isl_map_set_rational(map);
1905 if (isl_stream_next_token_is(s, ':')) {
1906 obj.type = isl_obj_set;
1907 obj.v = read_optional_disjuncts(s, map, v);
1911 if (!next_is_tuple(s))
1912 return obj_read_poly_or_fold(s, map, v, n);
1914 map = read_map_tuple(s, map, isl_dim_in, v);
1917 tok = isl_stream_next_token(s);
1920 if (tok->type == ISL_TOKEN_TO) {
1921 obj.type = isl_obj_map;
1922 isl_token_free(tok);
1923 if (!next_is_tuple(s)) {
1924 isl_set *set = isl_map_domain(map);
1925 return obj_read_poly_or_fold(s, set, v, n);
1927 map = read_map_tuple(s, map, isl_dim_out, v);
1931 map = isl_map_domain(map);
1932 isl_stream_push_token(s, tok);
1935 map = read_optional_disjuncts(s, map, v);
1937 vars_drop(v, v->n - n);
1943 obj.type = isl_obj_none;
1947 static struct isl_obj to_union(isl_ctx *ctx, struct isl_obj obj)
1949 if (obj.type == isl_obj_map) {
1950 obj.v = isl_union_map_from_map(obj.v);
1951 obj.type = isl_obj_union_map;
1952 } else if (obj.type == isl_obj_set) {
1953 obj.v = isl_union_set_from_set(obj.v);
1954 obj.type = isl_obj_union_set;
1955 } else if (obj.type == isl_obj_pw_qpolynomial) {
1956 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
1957 obj.type = isl_obj_union_pw_qpolynomial;
1958 } else if (obj.type == isl_obj_pw_qpolynomial_fold) {
1959 obj.v = isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj.v);
1960 obj.type = isl_obj_union_pw_qpolynomial_fold;
1962 isl_assert(ctx, 0, goto error);
1965 obj.type->free(obj.v);
1966 obj.type = isl_obj_none;
1970 static struct isl_obj obj_add(struct isl_ctx *ctx,
1971 struct isl_obj obj1, struct isl_obj obj2)
1973 if (obj1.type == isl_obj_set && obj2.type == isl_obj_union_set)
1974 obj1 = to_union(ctx, obj1);
1975 if (obj1.type == isl_obj_union_set && obj2.type == isl_obj_set)
1976 obj2 = to_union(ctx, obj2);
1977 if (obj1.type == isl_obj_map && obj2.type == isl_obj_union_map)
1978 obj1 = to_union(ctx, obj1);
1979 if (obj1.type == isl_obj_union_map && obj2.type == isl_obj_map)
1980 obj2 = to_union(ctx, obj2);
1981 if (obj1.type == isl_obj_pw_qpolynomial &&
1982 obj2.type == isl_obj_union_pw_qpolynomial)
1983 obj1 = to_union(ctx, obj1);
1984 if (obj1.type == isl_obj_union_pw_qpolynomial &&
1985 obj2.type == isl_obj_pw_qpolynomial)
1986 obj2 = to_union(ctx, obj2);
1987 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
1988 obj2.type == isl_obj_union_pw_qpolynomial_fold)
1989 obj1 = to_union(ctx, obj1);
1990 if (obj1.type == isl_obj_union_pw_qpolynomial_fold &&
1991 obj2.type == isl_obj_pw_qpolynomial_fold)
1992 obj2 = to_union(ctx, obj2);
1993 isl_assert(ctx, obj1.type == obj2.type, goto error);
1994 if (obj1.type == isl_obj_map && !isl_map_has_equal_space(obj1.v, obj2.v)) {
1995 obj1 = to_union(ctx, obj1);
1996 obj2 = to_union(ctx, obj2);
1998 if (obj1.type == isl_obj_set && !isl_set_has_equal_space(obj1.v, obj2.v)) {
1999 obj1 = to_union(ctx, obj1);
2000 obj2 = to_union(ctx, obj2);
2002 if (obj1.type == isl_obj_pw_qpolynomial &&
2003 !isl_pw_qpolynomial_has_equal_space(obj1.v, obj2.v)) {
2004 obj1 = to_union(ctx, obj1);
2005 obj2 = to_union(ctx, obj2);
2007 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
2008 !isl_pw_qpolynomial_fold_has_equal_space(obj1.v, obj2.v)) {
2009 obj1 = to_union(ctx, obj1);
2010 obj2 = to_union(ctx, obj2);
2012 obj1.v = obj1.type->add(obj1.v, obj2.v);
2015 obj1.type->free(obj1.v);
2016 obj2.type->free(obj2.v);
2017 obj1.type = isl_obj_none;
2022 static struct isl_obj obj_read(struct isl_stream *s)
2024 isl_map *map = NULL;
2025 struct isl_token *tok;
2026 struct vars *v = NULL;
2027 struct isl_obj obj = { isl_obj_set, NULL };
2029 tok = next_token(s);
2031 isl_stream_error(s, NULL, "unexpected EOF");
2034 if (tok->type == ISL_TOKEN_VALUE) {
2035 struct isl_token *tok2;
2036 struct isl_map *map;
2038 tok2 = isl_stream_next_token(s);
2039 if (!tok2 || tok2->type != ISL_TOKEN_VALUE ||
2040 isl_int_is_neg(tok2->u.v)) {
2042 isl_stream_push_token(s, tok2);
2043 obj.type = isl_obj_int;
2044 obj.v = isl_int_obj_alloc(s->ctx, tok->u.v);
2045 isl_token_free(tok);
2048 isl_stream_push_token(s, tok2);
2049 isl_stream_push_token(s, tok);
2050 map = map_read_polylib(s);
2053 if (isl_map_may_be_set(map))
2054 obj.v = isl_map_range(map);
2056 obj.type = isl_obj_map;
2061 v = vars_new(s->ctx);
2063 isl_stream_push_token(s, tok);
2066 map = isl_map_universe(isl_space_params_alloc(s->ctx, 0));
2067 if (tok->type == '[') {
2068 isl_stream_push_token(s, tok);
2069 map = read_map_tuple(s, map, isl_dim_param, v);
2072 tok = isl_stream_next_token(s);
2073 if (!tok || tok->type != ISL_TOKEN_TO) {
2074 isl_stream_error(s, tok, "expecting '->'");
2076 isl_stream_push_token(s, tok);
2079 isl_token_free(tok);
2080 tok = isl_stream_next_token(s);
2082 if (!tok || tok->type != '{') {
2083 isl_stream_error(s, tok, "expecting '{'");
2085 isl_stream_push_token(s, tok);
2088 isl_token_free(tok);
2090 tok = isl_stream_next_token(s);
2093 else if (tok->type == ISL_TOKEN_IDENT && !strcmp(tok->u.s, "Sym")) {
2094 isl_token_free(tok);
2095 if (isl_stream_eat(s, '='))
2097 map = read_map_tuple(s, map, isl_dim_param, v);
2100 } else if (tok->type == '}') {
2101 obj.type = isl_obj_union_set;
2102 obj.v = isl_union_set_empty(isl_map_get_space(map));
2103 isl_token_free(tok);
2106 isl_stream_push_token(s, tok);
2111 o = obj_read_body(s, isl_map_copy(map), v);
2112 if (o.type == isl_obj_none || !o.v)
2117 obj = obj_add(s->ctx, obj, o);
2118 if (obj.type == isl_obj_none || !obj.v)
2121 tok = isl_stream_next_token(s);
2122 if (!tok || tok->type != ';')
2124 isl_token_free(tok);
2125 if (isl_stream_next_token_is(s, '}')) {
2126 tok = isl_stream_next_token(s);
2131 if (tok && tok->type == '}') {
2132 isl_token_free(tok);
2134 isl_stream_error(s, tok, "unexpected isl_token");
2136 isl_token_free(tok);
2146 obj.type->free(obj.v);
2153 struct isl_obj isl_stream_read_obj(struct isl_stream *s)
2158 __isl_give isl_map *isl_stream_read_map(struct isl_stream *s)
2164 isl_assert(s->ctx, obj.type == isl_obj_map ||
2165 obj.type == isl_obj_set, goto error);
2167 if (obj.type == isl_obj_set)
2168 obj.v = isl_map_from_range(obj.v);
2172 obj.type->free(obj.v);
2176 __isl_give isl_set *isl_stream_read_set(struct isl_stream *s)
2182 if (obj.type == isl_obj_map && isl_map_may_be_set(obj.v)) {
2183 obj.v = isl_map_range(obj.v);
2184 obj.type = isl_obj_set;
2186 isl_assert(s->ctx, obj.type == isl_obj_set, goto error);
2191 obj.type->free(obj.v);
2195 __isl_give isl_union_map *isl_stream_read_union_map(struct isl_stream *s)
2200 if (obj.type == isl_obj_map) {
2201 obj.type = isl_obj_union_map;
2202 obj.v = isl_union_map_from_map(obj.v);
2204 if (obj.type == isl_obj_set) {
2205 obj.type = isl_obj_union_set;
2206 obj.v = isl_union_set_from_set(obj.v);
2208 if (obj.v && obj.type == isl_obj_union_set &&
2209 isl_union_set_is_empty(obj.v))
2210 obj.type = isl_obj_union_map;
2211 if (obj.v && obj.type != isl_obj_union_map)
2212 isl_die(s->ctx, isl_error_invalid, "invalid input", goto error);
2216 obj.type->free(obj.v);
2220 __isl_give isl_union_set *isl_stream_read_union_set(struct isl_stream *s)
2225 if (obj.type == isl_obj_set) {
2226 obj.type = isl_obj_union_set;
2227 obj.v = isl_union_set_from_set(obj.v);
2230 isl_assert(s->ctx, obj.type == isl_obj_union_set, goto error);
2234 obj.type->free(obj.v);
2238 static __isl_give isl_basic_map *basic_map_read(struct isl_stream *s)
2241 struct isl_map *map;
2242 struct isl_basic_map *bmap;
2249 isl_assert(map->ctx, map->n <= 1, goto error);
2252 bmap = isl_basic_map_empty_like_map(map);
2254 bmap = isl_basic_map_copy(map->p[0]);
2264 static __isl_give isl_basic_set *basic_set_read(struct isl_stream *s)
2266 isl_basic_map *bmap;
2267 bmap = basic_map_read(s);
2270 if (!isl_basic_map_may_be_set(bmap))
2271 isl_die(s->ctx, isl_error_invalid,
2272 "input is not a set", goto error);
2273 return isl_basic_map_range(bmap);
2275 isl_basic_map_free(bmap);
2279 __isl_give isl_basic_map *isl_basic_map_read_from_file(isl_ctx *ctx,
2282 struct isl_basic_map *bmap;
2283 struct isl_stream *s = isl_stream_new_file(ctx, input);
2286 bmap = basic_map_read(s);
2291 __isl_give isl_basic_set *isl_basic_set_read_from_file(isl_ctx *ctx,
2294 isl_basic_set *bset;
2295 struct isl_stream *s = isl_stream_new_file(ctx, input);
2298 bset = basic_set_read(s);
2303 struct isl_basic_map *isl_basic_map_read_from_str(struct isl_ctx *ctx,
2306 struct isl_basic_map *bmap;
2307 struct isl_stream *s = isl_stream_new_str(ctx, str);
2310 bmap = basic_map_read(s);
2315 struct isl_basic_set *isl_basic_set_read_from_str(struct isl_ctx *ctx,
2318 isl_basic_set *bset;
2319 struct isl_stream *s = isl_stream_new_str(ctx, str);
2322 bset = basic_set_read(s);
2327 __isl_give isl_map *isl_map_read_from_file(struct isl_ctx *ctx,
2330 struct isl_map *map;
2331 struct isl_stream *s = isl_stream_new_file(ctx, input);
2334 map = isl_stream_read_map(s);
2339 __isl_give isl_map *isl_map_read_from_str(struct isl_ctx *ctx,
2342 struct isl_map *map;
2343 struct isl_stream *s = isl_stream_new_str(ctx, str);
2346 map = isl_stream_read_map(s);
2351 __isl_give isl_set *isl_set_read_from_file(struct isl_ctx *ctx,
2355 struct isl_stream *s = isl_stream_new_file(ctx, input);
2358 set = isl_stream_read_set(s);
2363 struct isl_set *isl_set_read_from_str(struct isl_ctx *ctx,
2367 struct isl_stream *s = isl_stream_new_str(ctx, str);
2370 set = isl_stream_read_set(s);
2375 __isl_give isl_union_map *isl_union_map_read_from_file(isl_ctx *ctx,
2378 isl_union_map *umap;
2379 struct isl_stream *s = isl_stream_new_file(ctx, input);
2382 umap = isl_stream_read_union_map(s);
2387 __isl_give isl_union_map *isl_union_map_read_from_str(struct isl_ctx *ctx,
2390 isl_union_map *umap;
2391 struct isl_stream *s = isl_stream_new_str(ctx, str);
2394 umap = isl_stream_read_union_map(s);
2399 __isl_give isl_union_set *isl_union_set_read_from_file(isl_ctx *ctx,
2402 isl_union_set *uset;
2403 struct isl_stream *s = isl_stream_new_file(ctx, input);
2406 uset = isl_stream_read_union_set(s);
2411 __isl_give isl_union_set *isl_union_set_read_from_str(struct isl_ctx *ctx,
2414 isl_union_set *uset;
2415 struct isl_stream *s = isl_stream_new_str(ctx, str);
2418 uset = isl_stream_read_union_set(s);
2423 static __isl_give isl_vec *isl_vec_read_polylib(struct isl_stream *s)
2425 struct isl_vec *vec = NULL;
2426 struct isl_token *tok;
2430 tok = isl_stream_next_token(s);
2431 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2432 isl_stream_error(s, tok, "expecting vector length");
2436 size = isl_int_get_si(tok->u.v);
2437 isl_token_free(tok);
2439 vec = isl_vec_alloc(s->ctx, size);
2441 for (j = 0; j < size; ++j) {
2442 tok = isl_stream_next_token(s);
2443 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2444 isl_stream_error(s, tok, "expecting constant value");
2447 isl_int_set(vec->el[j], tok->u.v);
2448 isl_token_free(tok);
2453 isl_token_free(tok);
2458 static __isl_give isl_vec *vec_read(struct isl_stream *s)
2460 return isl_vec_read_polylib(s);
2463 __isl_give isl_vec *isl_vec_read_from_file(isl_ctx *ctx, FILE *input)
2466 struct isl_stream *s = isl_stream_new_file(ctx, input);
2474 __isl_give isl_pw_qpolynomial *isl_stream_read_pw_qpolynomial(
2475 struct isl_stream *s)
2481 isl_assert(s->ctx, obj.type == isl_obj_pw_qpolynomial,
2486 obj.type->free(obj.v);
2490 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_str(isl_ctx *ctx,
2493 isl_pw_qpolynomial *pwqp;
2494 struct isl_stream *s = isl_stream_new_str(ctx, str);
2497 pwqp = isl_stream_read_pw_qpolynomial(s);
2502 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_file(isl_ctx *ctx,
2505 isl_pw_qpolynomial *pwqp;
2506 struct isl_stream *s = isl_stream_new_file(ctx, input);
2509 pwqp = isl_stream_read_pw_qpolynomial(s);
2514 /* Is the next token an identifer not in "v"?
2516 static int next_is_fresh_ident(struct isl_stream *s, struct vars *v)
2520 struct isl_token *tok;
2522 tok = isl_stream_next_token(s);
2525 fresh = tok->type == ISL_TOKEN_IDENT && vars_pos(v, tok->u.s, -1) >= n;
2526 isl_stream_push_token(s, tok);
2528 vars_drop(v, v->n - n);
2533 /* First read the domain of the affine expression, which may be
2534 * a parameter space or a set.
2535 * The tricky part is that we don't know if the domain is a set or not,
2536 * so when we are trying to read the domain, we may actually be reading
2537 * the affine expression itself (defined on a parameter domains)
2538 * If the tuple we are reading is named, we assume it's the domain.
2539 * Also, if inside the tuple, the first thing we find is a nested tuple
2540 * or a new identifier, we again assume it's the domain.
2541 * Otherwise, we assume we are reading an affine expression.
2543 static __isl_give isl_set *read_aff_domain(struct isl_stream *s,
2544 __isl_take isl_set *dom, struct vars *v)
2546 struct isl_token *tok;
2548 tok = isl_stream_next_token(s);
2549 if (tok && (tok->type == ISL_TOKEN_IDENT || tok->is_keyword)) {
2550 isl_stream_push_token(s, tok);
2551 return read_map_tuple(s, dom, isl_dim_set, v);
2553 if (!tok || tok->type != '[') {
2554 isl_stream_error(s, tok, "expecting '['");
2557 if (next_is_tuple(s) || next_is_fresh_ident(s, v)) {
2558 isl_stream_push_token(s, tok);
2559 dom = read_map_tuple(s, dom, isl_dim_set, v);
2561 isl_stream_push_token(s, tok);
2566 isl_stream_push_token(s, tok);
2572 /* Read an affine expression from "s".
2574 __isl_give isl_aff *isl_stream_read_aff(struct isl_stream *s)
2579 ma = isl_stream_read_multi_aff(s);
2582 if (isl_multi_aff_dim(ma, isl_dim_out) != 1)
2583 isl_die(s->ctx, isl_error_invalid,
2584 "expecting single affine expression",
2587 aff = isl_multi_aff_get_aff(ma, 0);
2588 isl_multi_aff_free(ma);
2591 isl_multi_aff_free(ma);
2595 /* Read a piecewise affine expression from "s" with domain (space) "dom".
2597 static __isl_give isl_pw_aff *read_pw_aff_with_dom(struct isl_stream *s,
2598 __isl_take isl_set *dom, struct vars *v)
2600 isl_pw_aff *pwaff = NULL;
2602 if (!isl_set_is_params(dom) && isl_stream_eat(s, ISL_TOKEN_TO))
2605 if (isl_stream_eat(s, '['))
2608 pwaff = accept_affine(s, isl_set_get_space(dom), v);
2610 if (isl_stream_eat(s, ']'))
2613 dom = read_optional_disjuncts(s, dom, v);
2614 pwaff = isl_pw_aff_intersect_domain(pwaff, dom);
2619 isl_pw_aff_free(pwaff);
2623 __isl_give isl_pw_aff *isl_stream_read_pw_aff(struct isl_stream *s)
2626 isl_set *dom = NULL;
2628 isl_pw_aff *pa = NULL;
2631 v = vars_new(s->ctx);
2635 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2636 if (next_is_tuple(s)) {
2637 dom = read_map_tuple(s, dom, isl_dim_param, v);
2638 if (isl_stream_eat(s, ISL_TOKEN_TO))
2641 if (isl_stream_eat(s, '{'))
2645 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2646 pa = read_pw_aff_with_dom(s, aff_dom, v);
2647 vars_drop(v, v->n - n);
2649 while (isl_stream_eat_if_available(s, ';')) {
2653 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2654 pa_i = read_pw_aff_with_dom(s, aff_dom, v);
2655 vars_drop(v, v->n - n);
2657 pa = isl_pw_aff_union_add(pa, pa_i);
2660 if (isl_stream_eat(s, '}'))
2669 isl_pw_aff_free(pa);
2673 __isl_give isl_aff *isl_aff_read_from_str(isl_ctx *ctx, const char *str)
2676 struct isl_stream *s = isl_stream_new_str(ctx, str);
2679 aff = isl_stream_read_aff(s);
2684 __isl_give isl_pw_aff *isl_pw_aff_read_from_str(isl_ctx *ctx, const char *str)
2687 struct isl_stream *s = isl_stream_new_str(ctx, str);
2690 pa = isl_stream_read_pw_aff(s);
2695 /* Read an isl_pw_multi_aff from "s".
2696 * We currently read a generic object and if it turns out to be a set or
2697 * a map, we convert that to an isl_pw_multi_aff.
2698 * It would be more efficient if we were to construct the isl_pw_multi_aff
2701 __isl_give isl_pw_multi_aff *isl_stream_read_pw_multi_aff(struct isl_stream *s)
2709 if (obj.type == isl_obj_map)
2710 return isl_pw_multi_aff_from_map(obj.v);
2711 if (obj.type == isl_obj_set)
2712 return isl_pw_multi_aff_from_set(obj.v);
2714 obj.type->free(obj.v);
2715 isl_die(s->ctx, isl_error_invalid, "unexpected object type",
2719 __isl_give isl_pw_multi_aff *isl_pw_multi_aff_read_from_str(isl_ctx *ctx,
2722 isl_pw_multi_aff *pma;
2723 struct isl_stream *s = isl_stream_new_str(ctx, str);
2726 pma = isl_stream_read_pw_multi_aff(s);
2731 /* Assuming "pa" represents a single affine expression defined on a universe
2732 * domain, extract this affine expression.
2734 static __isl_give isl_aff *aff_from_pw_aff(__isl_take isl_pw_aff *pa)
2741 isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
2742 "expecting single affine expression",
2744 if (!isl_set_plain_is_universe(pa->p[0].set))
2745 isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
2746 "expecting universe domain",
2749 aff = isl_aff_copy(pa->p[0].aff);
2750 isl_pw_aff_free(pa);
2753 isl_pw_aff_free(pa);
2757 /* Read a multi-affine expression from "s".
2758 * If the multi-affine expression has a domain, then then tuple
2759 * representing this domain cannot involve any affine expressions.
2760 * The tuple representing the actual expressions needs to consist
2761 * of only affine expressions. Moreover, these expressions can
2762 * only depend on parameters and input dimensions and not on other
2763 * output dimensions.
2765 __isl_give isl_multi_aff *isl_stream_read_multi_aff(struct isl_stream *s)
2768 isl_set *dom = NULL;
2769 isl_multi_pw_aff *tuple = NULL;
2771 isl_space *space, *dom_space;
2772 isl_multi_aff *ma = NULL;
2774 v = vars_new(s->ctx);
2778 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2779 if (next_is_tuple(s)) {
2780 dom = read_map_tuple(s, dom, isl_dim_param, v);
2781 if (isl_stream_eat(s, ISL_TOKEN_TO))
2784 if (!isl_set_plain_is_universe(dom))
2785 isl_die(s->ctx, isl_error_invalid,
2786 "expecting universe parameter domain", goto error);
2787 if (isl_stream_eat(s, '{'))
2790 tuple = read_tuple(s, v);
2793 if (isl_stream_eat_if_available(s, ISL_TOKEN_TO)) {
2798 has_expr = tuple_has_expr(tuple);
2802 isl_die(s->ctx, isl_error_invalid,
2803 "expecting universe domain", goto error);
2804 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
2805 set = isl_set_universe(space);
2806 dom = isl_set_intersect_params(set, dom);
2807 isl_multi_pw_aff_free(tuple);
2808 tuple = read_tuple(s, v);
2813 if (isl_stream_eat(s, '}'))
2816 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
2817 dim = isl_set_dim(dom, isl_dim_all);
2818 dom_space = isl_set_get_space(dom);
2819 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
2820 space = isl_space_align_params(space, isl_space_copy(dom_space));
2821 if (!isl_space_is_params(dom_space))
2822 space = isl_space_map_from_domain_and_range(
2823 isl_space_copy(dom_space), space);
2824 isl_space_free(dom_space);
2825 ma = isl_multi_aff_alloc(space);
2827 for (i = 0; i < n; ++i) {
2830 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
2831 aff = aff_from_pw_aff(pa);
2834 if (isl_aff_involves_dims(aff, isl_dim_in, dim, i + 1)) {
2836 isl_die(s->ctx, isl_error_invalid,
2837 "not an affine expression", goto error);
2839 aff = isl_aff_drop_dims(aff, isl_dim_in, dim, n);
2840 space = isl_multi_aff_get_domain_space(ma);
2841 aff = isl_aff_reset_domain_space(aff, space);
2842 ma = isl_multi_aff_set_aff(ma, i, aff);
2845 isl_multi_pw_aff_free(tuple);
2850 isl_multi_pw_aff_free(tuple);
2853 isl_multi_aff_free(ma);
2857 __isl_give isl_multi_aff *isl_multi_aff_read_from_str(isl_ctx *ctx,
2860 isl_multi_aff *maff;
2861 struct isl_stream *s = isl_stream_new_str(ctx, str);
2864 maff = isl_stream_read_multi_aff(s);
2869 __isl_give isl_union_pw_qpolynomial *isl_stream_read_union_pw_qpolynomial(
2870 struct isl_stream *s)
2875 if (obj.type == isl_obj_pw_qpolynomial) {
2876 obj.type = isl_obj_union_pw_qpolynomial;
2877 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
2880 isl_assert(s->ctx, obj.type == isl_obj_union_pw_qpolynomial,
2885 obj.type->free(obj.v);
2889 __isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_read_from_str(
2890 isl_ctx *ctx, const char *str)
2892 isl_union_pw_qpolynomial *upwqp;
2893 struct isl_stream *s = isl_stream_new_str(ctx, str);
2896 upwqp = isl_stream_read_union_pw_qpolynomial(s);