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 vars_drop(v, v->n - n);
347 isl_stream_error(s, tok, "unknown identifier");
351 aff = isl_aff_zero_on_domain(isl_local_space_from_space(isl_space_copy(dim)));
354 isl_int_set_si(aff->v->el[2 + pos], 1);
355 res = isl_pw_aff_from_aff(aff);
357 } else if (tok->type == ISL_TOKEN_VALUE) {
358 if (isl_stream_eat_if_available(s, '*')) {
359 res = accept_affine_factor(s, isl_space_copy(dim), v);
360 res = isl_pw_aff_scale(res, tok->u.v);
364 ls = isl_local_space_from_space(isl_space_copy(dim));
365 aff = isl_aff_zero_on_domain(ls);
366 aff = isl_aff_add_constant(aff, tok->u.v);
367 res = isl_pw_aff_from_aff(aff);
370 } else if (tok->type == '(') {
373 res = accept_affine(s, isl_space_copy(dim), v);
376 if (isl_stream_eat(s, ')'))
378 } else if (tok->type == '[' ||
379 tok->type == ISL_TOKEN_FLOORD ||
380 tok->type == ISL_TOKEN_CEILD) {
381 isl_stream_push_token(s, tok);
383 res = accept_div(s, isl_space_copy(dim), v);
384 } else if (tok->type == ISL_TOKEN_MIN || tok->type == ISL_TOKEN_MAX) {
385 isl_stream_push_token(s, tok);
387 res = accept_minmax(s, isl_space_copy(dim), v);
389 isl_stream_error(s, tok, "expecting factor");
392 if (isl_stream_eat_if_available(s, '%') ||
393 isl_stream_eat_if_available(s, ISL_TOKEN_MOD)) {
395 return affine_mod(s, v, res);
397 if (isl_stream_eat_if_available(s, '*')) {
400 isl_int_set_si(f, 1);
401 if (accept_cst_factor(s, &f) < 0) {
405 res = isl_pw_aff_scale(res, f);
408 if (isl_stream_eat_if_available(s, '/')) {
411 isl_int_set_si(f, 1);
412 if (accept_cst_factor(s, &f) < 0) {
416 res = isl_pw_aff_scale_down(res, f);
425 isl_pw_aff_free(res);
430 static __isl_give isl_pw_aff *add_cst(__isl_take isl_pw_aff *pwaff, isl_int v)
435 space = isl_pw_aff_get_domain_space(pwaff);
436 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
437 aff = isl_aff_add_constant(aff, v);
439 return isl_pw_aff_add(pwaff, isl_pw_aff_from_aff(aff));
442 static __isl_give isl_pw_aff *accept_affine(struct isl_stream *s,
443 __isl_take isl_space *dim, struct vars *v)
445 struct isl_token *tok = NULL;
450 ls = isl_local_space_from_space(isl_space_copy(dim));
451 res = isl_pw_aff_from_aff(isl_aff_zero_on_domain(ls));
458 isl_stream_error(s, NULL, "unexpected EOF");
461 if (tok->type == '-') {
466 if (tok->type == '(' || tok->type == '[' ||
467 tok->type == ISL_TOKEN_MIN || tok->type == ISL_TOKEN_MAX ||
468 tok->type == ISL_TOKEN_FLOORD ||
469 tok->type == ISL_TOKEN_CEILD ||
470 tok->type == ISL_TOKEN_IDENT ||
471 tok->type == ISL_TOKEN_AFF) {
473 isl_stream_push_token(s, tok);
475 term = accept_affine_factor(s, isl_space_copy(dim), v);
477 res = isl_pw_aff_sub(res, term);
479 res = isl_pw_aff_add(res, term);
483 } else if (tok->type == ISL_TOKEN_VALUE) {
485 isl_int_neg(tok->u.v, tok->u.v);
486 if (isl_stream_eat_if_available(s, '*') ||
487 isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
489 term = accept_affine_factor(s,
490 isl_space_copy(dim), v);
491 term = isl_pw_aff_scale(term, tok->u.v);
492 res = isl_pw_aff_add(res, term);
496 res = add_cst(res, tok->u.v);
500 isl_stream_error(s, tok, "unexpected isl_token");
501 isl_stream_push_token(s, tok);
502 isl_pw_aff_free(res);
509 if (tok && tok->type == '-') {
512 } else if (tok && tok->type == '+') {
515 } else if (tok && tok->type == ISL_TOKEN_VALUE &&
516 isl_int_is_neg(tok->u.v)) {
517 isl_stream_push_token(s, tok);
520 isl_stream_push_token(s, tok);
530 isl_pw_aff_free(res);
534 static int is_comparator(struct isl_token *tok)
552 static struct isl_map *read_disjuncts(struct isl_stream *s,
553 struct vars *v, __isl_take isl_map *map, int rational);
554 static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
555 __isl_take isl_space *dim, struct vars *v, int rational);
557 /* Accept a ternary operator, given the first argument.
559 static __isl_give isl_pw_aff *accept_ternary(struct isl_stream *s,
560 __isl_take isl_map *cond, struct vars *v, int rational)
563 isl_pw_aff *pwaff1 = NULL, *pwaff2 = NULL, *pa_cond;
568 if (isl_stream_eat(s, '?'))
571 dim = isl_space_wrap(isl_map_get_space(cond));
572 pwaff1 = accept_extended_affine(s, dim, v, rational);
576 if (isl_stream_eat(s, ':'))
579 dim = isl_pw_aff_get_domain_space(pwaff1);
580 pwaff2 = accept_extended_affine(s, dim, v, rational);
584 pa_cond = isl_set_indicator_function(isl_map_wrap(cond));
585 return isl_pw_aff_cond(pa_cond, pwaff1, pwaff2);
588 isl_pw_aff_free(pwaff1);
589 isl_pw_aff_free(pwaff2);
593 /* Accept an affine expression that may involve ternary operators.
594 * We first read an affine expression.
595 * If it is not followed by a comparison operator, we simply return it.
596 * Otherwise, we assume the affine epxression is part of the first
597 * argument of a ternary operator and try to parse that.
599 static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
600 __isl_take isl_space *dim, struct vars *v, int rational)
605 struct isl_token *tok;
606 int line = -1, col = -1;
609 tok = isl_stream_next_token(s);
613 isl_stream_push_token(s, tok);
616 pwaff = accept_affine(s, dim, v);
618 pwaff = isl_pw_aff_set_rational(pwaff);
622 tok = isl_stream_next_token(s);
624 return isl_pw_aff_free(pwaff);
626 is_comp = is_comparator(tok);
627 isl_stream_push_token(s, tok);
631 tok = isl_token_new(s->ctx, line, col, 0);
633 return isl_pw_aff_free(pwaff);
634 tok->type = ISL_TOKEN_AFF;
635 tok->u.pwaff = pwaff;
637 space = isl_pw_aff_get_domain_space(pwaff);
638 cond = isl_map_universe(isl_space_unwrap(space));
640 isl_stream_push_token(s, tok);
642 cond = read_disjuncts(s, v, cond, rational);
644 return accept_ternary(s, cond, v, rational);
647 static __isl_give isl_map *read_var_def(struct isl_stream *s,
648 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v,
655 if (type == isl_dim_param)
656 pos = isl_map_dim(map, isl_dim_param);
658 pos = isl_map_dim(map, isl_dim_in);
659 if (type == isl_dim_out)
660 pos += isl_map_dim(map, isl_dim_out);
665 def = accept_extended_affine(s, isl_space_wrap(isl_map_get_space(map)),
667 def_map = isl_map_from_pw_aff(def);
668 def_map = isl_map_equate(def_map, type, pos, isl_dim_out, 0);
669 def_map = isl_set_unwrap(isl_map_domain(def_map));
671 map = isl_map_intersect(map, def_map);
676 static __isl_give isl_pw_aff_list *accept_affine_list(struct isl_stream *s,
677 __isl_take isl_space *dim, struct vars *v)
680 isl_pw_aff_list *list;
681 struct isl_token *tok = NULL;
683 pwaff = accept_affine(s, isl_space_copy(dim), v);
684 list = isl_pw_aff_list_from_pw_aff(pwaff);
689 tok = isl_stream_next_token(s);
691 isl_stream_error(s, NULL, "unexpected EOF");
694 if (tok->type != ',') {
695 isl_stream_push_token(s, tok);
700 pwaff = accept_affine(s, isl_space_copy(dim), v);
701 list = isl_pw_aff_list_concat(list,
702 isl_pw_aff_list_from_pw_aff(pwaff));
711 isl_pw_aff_list_free(list);
715 static __isl_give isl_map *read_defined_var_list(struct isl_stream *s,
716 struct vars *v, __isl_take isl_map *map, int rational)
718 struct isl_token *tok;
720 while ((tok = isl_stream_next_token(s)) != NULL) {
724 if (tok->type != ISL_TOKEN_IDENT)
727 p = vars_pos(v, tok->u.s, -1);
731 isl_stream_error(s, tok, "expecting unique identifier");
735 map = isl_map_add_dims(map, isl_dim_out, 1);
738 tok = isl_stream_next_token(s);
739 if (tok && tok->type == '=') {
741 map = read_var_def(s, map, isl_dim_out, v, rational);
742 tok = isl_stream_next_token(s);
745 if (!tok || tok->type != ',')
751 isl_stream_push_token(s, tok);
760 static int next_is_tuple(struct isl_stream *s)
762 struct isl_token *tok;
765 tok = isl_stream_next_token(s);
768 if (tok->type == '[') {
769 isl_stream_push_token(s, tok);
772 if (tok->type != ISL_TOKEN_IDENT && !tok->is_keyword) {
773 isl_stream_push_token(s, tok);
777 is_tuple = isl_stream_next_token_is(s, '[');
779 isl_stream_push_token(s, tok);
784 /* Allocate an initial tuple with zero dimensions and an anonymous,
785 * unstructured space.
786 * A tuple is represented as an isl_multi_pw_aff.
787 * The range space is the space of the tuple.
788 * The domain space is an anonymous space
789 * with a dimension for each variable in the set of variables in "v".
790 * If a given dimension is not defined in terms of earlier dimensions in
791 * the input, then the corresponding isl_pw_aff is set equal to one time
792 * the variable corresponding to the dimension being defined.
794 static __isl_give isl_multi_pw_aff *tuple_alloc(struct vars *v)
796 return isl_multi_pw_aff_alloc(isl_space_alloc(v->ctx, 0, v->n, 0));
799 /* Is "pa" an expression in term of earlier dimensions?
800 * The alternative is that the dimension is defined to be equal to itself,
801 * meaning that it has a universe domain and an expression that depends
802 * on itself. "i" is the position of the expression in a sequence
803 * of "n" expressions. The final dimensions of "pa" correspond to
804 * these "n" expressions.
806 static int pw_aff_is_expr(__isl_keep isl_pw_aff *pa, int i, int n)
814 if (!isl_set_plain_is_universe(pa->p[0].set))
818 if (isl_int_is_zero(aff->v->el[aff->v->size - n + i]))
823 /* Does the tuple contain any dimensions that are defined
824 * in terms of earlier dimensions?
826 static int tuple_has_expr(__isl_keep isl_multi_pw_aff *tuple)
834 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
835 for (i = 0; i < n; ++i) {
836 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
837 has_expr = pw_aff_is_expr(pa, i, n);
839 if (has_expr < 0 || has_expr)
846 /* Add a dimension to the given tuple.
847 * The dimension is initially undefined, so it is encoded
848 * as one times itself.
850 static __isl_give isl_multi_pw_aff *tuple_add_dim(
851 __isl_take isl_multi_pw_aff *tuple, struct vars *v)
857 tuple = isl_multi_pw_aff_add_dims(tuple, isl_dim_in, 1);
858 space = isl_multi_pw_aff_get_domain_space(tuple);
859 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
860 aff = isl_aff_add_coefficient_si(aff, isl_dim_in, v->n, 1);
861 pa = isl_pw_aff_from_aff(aff);
862 tuple = isl_multi_pw_aff_flat_range_product(tuple,
863 isl_multi_pw_aff_from_pw_aff(pa));
868 /* Set the name of dimension "pos" in "tuple" to "name".
869 * During printing, we add primes if the same name appears more than once
870 * to distinguish the occurrences. Here, we remove those primes from "name"
871 * before setting the name of the dimension.
873 static __isl_give isl_multi_pw_aff *tuple_set_dim_name(
874 __isl_take isl_multi_pw_aff *tuple, int pos, char *name)
881 prime = strchr(name, '\'');
884 tuple = isl_multi_pw_aff_set_dim_name(tuple, isl_dim_set, pos, name);
891 /* Read an affine expression from "s" and replace the definition
892 * of dimension "pos" in "tuple" by this expression.
894 * accept_extended_affine requires a wrapped space as input.
895 * The domain space of "tuple", on the other hand is an anonymous space,
896 * so we have to adjust the space of the isl_pw_aff before adding it
899 static __isl_give isl_multi_pw_aff *read_tuple_var_def(struct isl_stream *s,
900 __isl_take isl_multi_pw_aff *tuple, int pos, struct vars *v,
906 space = isl_space_wrap(isl_space_alloc(s->ctx, 0, v->n, 0));
907 def = accept_extended_affine(s, space, v, rational);
908 space = isl_space_set_alloc(s->ctx, 0, v->n);
909 def = isl_pw_aff_reset_domain_space(def, space);
910 tuple = isl_multi_pw_aff_set_pw_aff(tuple, pos, def);
915 /* Read a list of variables and/or affine expressions and return the list
916 * as an isl_multi_pw_aff.
917 * The elements in the list are separated by either "," or "][".
918 * If "comma" is set then only "," is allowed.
920 static __isl_give isl_multi_pw_aff *read_tuple_var_list(struct isl_stream *s,
921 struct vars *v, int rational, int comma)
924 struct isl_token *tok;
925 isl_multi_pw_aff *res;
927 res = tuple_alloc(v);
929 if (isl_stream_next_token_is(s, ']'))
932 while ((tok = next_token(s)) != NULL) {
935 res = tuple_add_dim(res, v);
937 if (tok->type == ISL_TOKEN_IDENT) {
939 int p = vars_pos(v, tok->u.s, -1);
946 res = tuple_set_dim_name(res, i, v->v->name);
948 if (isl_stream_eat_if_available(s, '='))
949 res = read_tuple_var_def(s, res, i, v,
952 isl_stream_push_token(s, tok);
954 if (vars_add_anon(v) < 0)
956 res = read_tuple_var_def(s, res, i, v, rational);
959 tok = isl_stream_next_token(s);
960 if (!comma && tok && tok->type == ']' &&
961 isl_stream_next_token_is(s, '[')) {
963 tok = isl_stream_next_token(s);
964 } else if (!tok || tok->type != ',')
971 isl_stream_push_token(s, tok);
976 return isl_multi_pw_aff_free(res);
979 /* Read a tuple and represent it as an isl_multi_pw_aff. See tuple_alloc.
981 static __isl_give isl_multi_pw_aff *read_tuple(struct isl_stream *s,
982 struct vars *v, int rational, int comma)
984 struct isl_token *tok;
986 isl_multi_pw_aff *res = NULL;
988 tok = isl_stream_next_token(s);
991 if (tok->type == ISL_TOKEN_IDENT || tok->is_keyword) {
992 name = strdup(tok->u.s);
997 isl_stream_push_token(s, tok);
998 if (isl_stream_eat(s, '['))
1000 if (next_is_tuple(s)) {
1001 isl_multi_pw_aff *out;
1003 res = read_tuple(s, v, rational, comma);
1004 if (isl_stream_eat(s, ISL_TOKEN_TO))
1006 out = read_tuple(s, v, rational, comma);
1007 n = isl_multi_pw_aff_dim(out, isl_dim_out);
1008 res = isl_multi_pw_aff_add_dims(res, isl_dim_in, n);
1009 res = isl_multi_pw_aff_range_product(res, out);
1011 res = read_tuple_var_list(s, v, rational, comma);
1012 if (isl_stream_eat(s, ']'))
1016 res = isl_multi_pw_aff_set_tuple_name(res, isl_dim_out, name);
1023 return isl_multi_pw_aff_free(res);
1026 /* Read a tuple from "s" and add it to "map".
1027 * The tuple is initially represented as an isl_multi_pw_aff.
1028 * We first create the appropriate space in "map" based on the range
1029 * space of this isl_multi_pw_aff. Then, we add equalities based
1030 * on the affine expressions. These live in an anonymous space,
1031 * however, so we first need to reset the space to that of "map".
1033 static __isl_give isl_map *read_map_tuple(struct isl_stream *s,
1034 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v,
1035 int rational, int comma)
1038 isl_multi_pw_aff *tuple;
1039 isl_space *space = NULL;
1041 tuple = read_tuple(s, v, rational, comma);
1045 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
1046 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
1050 if (type == isl_dim_param) {
1051 if (isl_space_has_tuple_name(space, isl_dim_set) ||
1052 isl_space_is_wrapping(space)) {
1053 isl_die(s->ctx, isl_error_invalid,
1054 "parameter tuples cannot be named or nested",
1057 map = isl_map_add_dims(map, type, n);
1058 for (i = 0; i < n; ++i) {
1060 if (!isl_space_has_dim_name(space, isl_dim_set, i))
1061 isl_die(s->ctx, isl_error_invalid,
1062 "parameters must be named",
1064 id = isl_space_get_dim_id(space, isl_dim_set, i);
1065 map = isl_map_set_dim_id(map, isl_dim_param, i, id);
1067 } else if (type == isl_dim_in) {
1070 set = isl_set_universe(isl_space_copy(space));
1072 set = isl_set_set_rational(set);
1073 set = isl_set_intersect_params(set, isl_map_params(map));
1074 map = isl_map_from_domain(set);
1078 set = isl_set_universe(isl_space_copy(space));
1080 set = isl_set_set_rational(set);
1081 map = isl_map_from_domain_and_range(isl_map_domain(map), set);
1084 for (i = 0; i < n; ++i) {
1091 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
1092 space = isl_pw_aff_get_domain_space(pa);
1093 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
1094 aff = isl_aff_add_coefficient_si(aff,
1095 isl_dim_in, v->n - n + i, -1);
1096 pa = isl_pw_aff_add(pa, isl_pw_aff_from_aff(aff));
1098 pa = isl_pw_aff_set_rational(pa);
1099 set = isl_pw_aff_zero_set(pa);
1100 map_i = isl_map_from_range(set);
1101 map_i = isl_map_reset_space(map_i, isl_map_get_space(map));
1102 map = isl_map_intersect(map, map_i);
1105 isl_space_free(space);
1106 isl_multi_pw_aff_free(tuple);
1109 isl_space_free(space);
1110 isl_multi_pw_aff_free(tuple);
1115 static __isl_give isl_set *construct_constraints(
1116 __isl_take isl_set *set, int type,
1117 __isl_keep isl_pw_aff_list *left, __isl_keep isl_pw_aff_list *right,
1122 left = isl_pw_aff_list_copy(left);
1123 right = isl_pw_aff_list_copy(right);
1125 left = isl_pw_aff_list_set_rational(left);
1126 right = isl_pw_aff_list_set_rational(right);
1128 if (type == ISL_TOKEN_LE)
1129 cond = isl_pw_aff_list_le_set(left, right);
1130 else if (type == ISL_TOKEN_GE)
1131 cond = isl_pw_aff_list_ge_set(left, right);
1132 else if (type == ISL_TOKEN_LT)
1133 cond = isl_pw_aff_list_lt_set(left, right);
1134 else if (type == ISL_TOKEN_GT)
1135 cond = isl_pw_aff_list_gt_set(left, right);
1136 else if (type == ISL_TOKEN_NE)
1137 cond = isl_pw_aff_list_ne_set(left, right);
1139 cond = isl_pw_aff_list_eq_set(left, right);
1141 return isl_set_intersect(set, cond);
1144 static __isl_give isl_map *add_constraint(struct isl_stream *s,
1145 struct vars *v, __isl_take isl_map *map, int rational)
1147 struct isl_token *tok = NULL;
1148 isl_pw_aff_list *list1 = NULL, *list2 = NULL;
1151 set = isl_map_wrap(map);
1152 list1 = accept_affine_list(s, isl_set_get_space(set), v);
1155 tok = isl_stream_next_token(s);
1156 if (!is_comparator(tok)) {
1157 isl_stream_error(s, tok, "missing operator");
1159 isl_stream_push_token(s, tok);
1164 list2 = accept_affine_list(s, isl_set_get_space(set), v);
1168 set = construct_constraints(set, tok->type, list1, list2,
1170 isl_token_free(tok);
1171 isl_pw_aff_list_free(list1);
1174 tok = isl_stream_next_token(s);
1175 if (!is_comparator(tok)) {
1177 isl_stream_push_token(s, tok);
1181 isl_pw_aff_list_free(list1);
1183 return isl_set_unwrap(set);
1186 isl_token_free(tok);
1187 isl_pw_aff_list_free(list1);
1188 isl_pw_aff_list_free(list2);
1193 static __isl_give isl_map *read_exists(struct isl_stream *s,
1194 struct vars *v, __isl_take isl_map *map, int rational)
1197 int seen_paren = isl_stream_eat_if_available(s, '(');
1199 map = isl_map_from_domain(isl_map_wrap(map));
1200 map = read_defined_var_list(s, v, map, rational);
1202 if (isl_stream_eat(s, ':'))
1205 map = read_disjuncts(s, v, map, rational);
1206 map = isl_set_unwrap(isl_map_domain(map));
1208 vars_drop(v, v->n - n);
1209 if (seen_paren && isl_stream_eat(s, ')'))
1218 /* Parse an expression between parentheses and push the result
1219 * back on the stream.
1221 * The parsed expression may be either an affine expression
1222 * or a condition. The first type is pushed onto the stream
1223 * as an isl_pw_aff, while the second is pushed as an isl_map.
1225 * If the initial token indicates the start of a condition,
1226 * we parse it as such.
1227 * Otherwise, we first parse an affine expression and push
1228 * that onto the stream. If the affine expression covers the
1229 * entire expression between parentheses, we return.
1230 * Otherwise, we assume that the affine expression is the
1231 * start of a condition and continue parsing.
1233 static int resolve_paren_expr(struct isl_stream *s,
1234 struct vars *v, __isl_take isl_map *map, int rational)
1236 struct isl_token *tok, *tok2;
1240 tok = isl_stream_next_token(s);
1241 if (!tok || tok->type != '(')
1244 if (isl_stream_next_token_is(s, '('))
1245 if (resolve_paren_expr(s, v, isl_map_copy(map), rational))
1248 if (isl_stream_next_token_is(s, ISL_TOKEN_EXISTS) ||
1249 isl_stream_next_token_is(s, ISL_TOKEN_NOT) ||
1250 isl_stream_next_token_is(s, ISL_TOKEN_TRUE) ||
1251 isl_stream_next_token_is(s, ISL_TOKEN_FALSE) ||
1252 isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1253 map = read_disjuncts(s, v, map, rational);
1254 if (isl_stream_eat(s, ')'))
1256 tok->type = ISL_TOKEN_MAP;
1258 isl_stream_push_token(s, tok);
1262 tok2 = isl_stream_next_token(s);
1267 isl_stream_push_token(s, tok2);
1269 pwaff = accept_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
1273 tok2 = isl_token_new(s->ctx, line, col, 0);
1276 tok2->type = ISL_TOKEN_AFF;
1277 tok2->u.pwaff = pwaff;
1279 if (isl_stream_eat_if_available(s, ')')) {
1280 isl_stream_push_token(s, tok2);
1281 isl_token_free(tok);
1286 isl_stream_push_token(s, tok2);
1288 map = read_disjuncts(s, v, map, rational);
1289 if (isl_stream_eat(s, ')'))
1292 tok->type = ISL_TOKEN_MAP;
1294 isl_stream_push_token(s, tok);
1298 isl_pw_aff_free(pwaff);
1300 isl_token_free(tok);
1305 static __isl_give isl_map *read_conjunct(struct isl_stream *s,
1306 struct vars *v, __isl_take isl_map *map, int rational)
1308 if (isl_stream_next_token_is(s, '('))
1309 if (resolve_paren_expr(s, v, isl_map_copy(map), rational))
1312 if (isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1313 struct isl_token *tok;
1314 tok = isl_stream_next_token(s);
1318 map = isl_map_copy(tok->u.map);
1319 isl_token_free(tok);
1323 if (isl_stream_eat_if_available(s, ISL_TOKEN_EXISTS))
1324 return read_exists(s, v, map, rational);
1326 if (isl_stream_eat_if_available(s, ISL_TOKEN_TRUE))
1329 if (isl_stream_eat_if_available(s, ISL_TOKEN_FALSE)) {
1330 isl_space *dim = isl_map_get_space(map);
1332 return isl_map_empty(dim);
1335 return add_constraint(s, v, map, rational);
1341 static __isl_give isl_map *read_conjuncts(struct isl_stream *s,
1342 struct vars *v, __isl_take isl_map *map, int rational)
1347 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1348 res = read_conjunct(s, v, isl_map_copy(map), rational);
1350 res = isl_map_subtract(isl_map_copy(map), res);
1352 while (isl_stream_eat_if_available(s, ISL_TOKEN_AND)) {
1355 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1356 res_i = read_conjunct(s, v, isl_map_copy(map), rational);
1358 res = isl_map_subtract(res, res_i);
1360 res = isl_map_intersect(res, res_i);
1367 static struct isl_map *read_disjuncts(struct isl_stream *s,
1368 struct vars *v, __isl_take isl_map *map, int rational)
1372 if (isl_stream_next_token_is(s, '}')) {
1373 isl_space *dim = isl_map_get_space(map);
1375 return isl_map_universe(dim);
1378 res = read_conjuncts(s, v, isl_map_copy(map), rational);
1379 while (isl_stream_eat_if_available(s, ISL_TOKEN_OR)) {
1382 res_i = read_conjuncts(s, v, isl_map_copy(map), rational);
1383 res = isl_map_union(res, res_i);
1390 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map *bmap, int pos)
1392 if (pos < isl_basic_map_dim(bmap, isl_dim_out))
1393 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1394 isl_basic_map_dim(bmap, isl_dim_in) + pos;
1395 pos -= isl_basic_map_dim(bmap, isl_dim_out);
1397 if (pos < isl_basic_map_dim(bmap, isl_dim_in))
1398 return 1 + isl_basic_map_dim(bmap, isl_dim_param) + pos;
1399 pos -= isl_basic_map_dim(bmap, isl_dim_in);
1401 if (pos < isl_basic_map_dim(bmap, isl_dim_div))
1402 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1403 isl_basic_map_dim(bmap, isl_dim_in) +
1404 isl_basic_map_dim(bmap, isl_dim_out) + pos;
1405 pos -= isl_basic_map_dim(bmap, isl_dim_div);
1407 if (pos < isl_basic_map_dim(bmap, isl_dim_param))
1413 static __isl_give isl_basic_map *basic_map_read_polylib_constraint(
1414 struct isl_stream *s, __isl_take isl_basic_map *bmap)
1417 struct isl_token *tok;
1427 nparam = isl_basic_map_dim(bmap, isl_dim_param);
1428 dim = isl_basic_map_dim(bmap, isl_dim_out);
1430 tok = isl_stream_next_token(s);
1431 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1432 isl_stream_error(s, tok, "expecting coefficient");
1434 isl_stream_push_token(s, tok);
1437 if (!tok->on_new_line) {
1438 isl_stream_error(s, tok, "coefficient should appear on new line");
1439 isl_stream_push_token(s, tok);
1443 type = isl_int_get_si(tok->u.v);
1444 isl_token_free(tok);
1446 isl_assert(s->ctx, type == 0 || type == 1, goto error);
1448 k = isl_basic_map_alloc_equality(bmap);
1451 k = isl_basic_map_alloc_inequality(bmap);
1457 for (j = 0; j < 1 + isl_basic_map_total_dim(bmap); ++j) {
1459 tok = isl_stream_next_token(s);
1460 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1461 isl_stream_error(s, tok, "expecting coefficient");
1463 isl_stream_push_token(s, tok);
1466 if (tok->on_new_line) {
1467 isl_stream_error(s, tok,
1468 "coefficient should not appear on new line");
1469 isl_stream_push_token(s, tok);
1472 pos = polylib_pos_to_isl_pos(bmap, j);
1473 isl_int_set(c[pos], tok->u.v);
1474 isl_token_free(tok);
1479 isl_basic_map_free(bmap);
1483 static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s)
1486 struct isl_token *tok;
1487 struct isl_token *tok2;
1490 unsigned in = 0, out, local = 0;
1491 struct isl_basic_map *bmap = NULL;
1494 tok = isl_stream_next_token(s);
1496 isl_stream_error(s, NULL, "unexpected EOF");
1499 tok2 = isl_stream_next_token(s);
1501 isl_token_free(tok);
1502 isl_stream_error(s, NULL, "unexpected EOF");
1505 if (tok->type != ISL_TOKEN_VALUE || tok2->type != ISL_TOKEN_VALUE) {
1506 isl_stream_push_token(s, tok2);
1507 isl_stream_push_token(s, tok);
1508 isl_stream_error(s, NULL,
1509 "expecting constraint matrix dimensions");
1512 n_row = isl_int_get_si(tok->u.v);
1513 n_col = isl_int_get_si(tok2->u.v);
1514 on_new_line = tok2->on_new_line;
1515 isl_token_free(tok2);
1516 isl_token_free(tok);
1517 isl_assert(s->ctx, !on_new_line, return NULL);
1518 isl_assert(s->ctx, n_row >= 0, return NULL);
1519 isl_assert(s->ctx, n_col >= 2 + nparam, return NULL);
1520 tok = isl_stream_next_token_on_same_line(s);
1522 if (tok->type != ISL_TOKEN_VALUE) {
1523 isl_stream_error(s, tok,
1524 "expecting number of output dimensions");
1525 isl_stream_push_token(s, tok);
1528 out = isl_int_get_si(tok->u.v);
1529 isl_token_free(tok);
1531 tok = isl_stream_next_token_on_same_line(s);
1532 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1533 isl_stream_error(s, tok,
1534 "expecting number of input dimensions");
1536 isl_stream_push_token(s, tok);
1539 in = isl_int_get_si(tok->u.v);
1540 isl_token_free(tok);
1542 tok = isl_stream_next_token_on_same_line(s);
1543 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1544 isl_stream_error(s, tok,
1545 "expecting number of existentials");
1547 isl_stream_push_token(s, tok);
1550 local = isl_int_get_si(tok->u.v);
1551 isl_token_free(tok);
1553 tok = isl_stream_next_token_on_same_line(s);
1554 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1555 isl_stream_error(s, tok,
1556 "expecting number of parameters");
1558 isl_stream_push_token(s, tok);
1561 nparam = isl_int_get_si(tok->u.v);
1562 isl_token_free(tok);
1563 if (n_col != 1 + out + in + local + nparam + 1) {
1564 isl_stream_error(s, NULL,
1565 "dimensions don't match");
1569 out = n_col - 2 - nparam;
1570 bmap = isl_basic_map_alloc(s->ctx, nparam, in, out, local, n_row, n_row);
1574 for (i = 0; i < local; ++i) {
1575 int k = isl_basic_map_alloc_div(bmap);
1578 isl_seq_clr(bmap->div[k], 1 + 1 + nparam + in + out + local);
1581 for (i = 0; i < n_row; ++i)
1582 bmap = basic_map_read_polylib_constraint(s, bmap);
1584 tok = isl_stream_next_token_on_same_line(s);
1586 isl_stream_error(s, tok, "unexpected extra token on line");
1587 isl_stream_push_token(s, tok);
1591 bmap = isl_basic_map_simplify(bmap);
1592 bmap = isl_basic_map_finalize(bmap);
1595 isl_basic_map_free(bmap);
1599 static struct isl_map *map_read_polylib(struct isl_stream *s)
1601 struct isl_token *tok;
1602 struct isl_token *tok2;
1604 struct isl_map *map;
1606 tok = isl_stream_next_token(s);
1608 isl_stream_error(s, NULL, "unexpected EOF");
1611 tok2 = isl_stream_next_token_on_same_line(s);
1612 if (tok2 && tok2->type == ISL_TOKEN_VALUE) {
1613 isl_stream_push_token(s, tok2);
1614 isl_stream_push_token(s, tok);
1615 return isl_map_from_basic_map(basic_map_read_polylib(s));
1618 isl_stream_error(s, tok2, "unexpected token");
1619 isl_stream_push_token(s, tok2);
1620 isl_stream_push_token(s, tok);
1623 n = isl_int_get_si(tok->u.v);
1624 isl_token_free(tok);
1626 isl_assert(s->ctx, n >= 1, return NULL);
1628 map = isl_map_from_basic_map(basic_map_read_polylib(s));
1630 for (i = 1; map && i < n; ++i)
1631 map = isl_map_union(map,
1632 isl_map_from_basic_map(basic_map_read_polylib(s)));
1637 static int optional_power(struct isl_stream *s)
1640 struct isl_token *tok;
1642 tok = isl_stream_next_token(s);
1645 if (tok->type != '^') {
1646 isl_stream_push_token(s, tok);
1649 isl_token_free(tok);
1650 tok = isl_stream_next_token(s);
1651 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1652 isl_stream_error(s, tok, "expecting exponent");
1654 isl_stream_push_token(s, tok);
1657 pow = isl_int_get_si(tok->u.v);
1658 isl_token_free(tok);
1662 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1663 __isl_keep isl_map *map, struct vars *v);
1665 static __isl_give isl_pw_qpolynomial *read_factor(struct isl_stream *s,
1666 __isl_keep isl_map *map, struct vars *v)
1668 isl_pw_qpolynomial *pwqp;
1669 struct isl_token *tok;
1671 tok = next_token(s);
1673 isl_stream_error(s, NULL, "unexpected EOF");
1676 if (tok->type == '(') {
1679 isl_token_free(tok);
1680 pwqp = read_term(s, map, v);
1683 if (isl_stream_eat(s, ')'))
1685 pow = optional_power(s);
1686 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1687 } else if (tok->type == ISL_TOKEN_VALUE) {
1688 struct isl_token *tok2;
1689 tok2 = isl_stream_next_token(s);
1690 isl_qpolynomial *qp;
1691 if (tok2 && tok2->type == '/') {
1692 isl_token_free(tok2);
1693 tok2 = next_token(s);
1694 if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
1695 isl_stream_error(s, tok2, "expected denominator");
1696 isl_token_free(tok);
1697 isl_token_free(tok2);
1700 qp = isl_qpolynomial_rat_cst_on_domain(isl_map_get_space(map),
1701 tok->u.v, tok2->u.v);
1702 isl_token_free(tok2);
1704 isl_stream_push_token(s, tok2);
1705 qp = isl_qpolynomial_cst_on_domain(isl_map_get_space(map),
1708 isl_token_free(tok);
1709 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1710 } else if (tok->type == ISL_TOKEN_INFTY) {
1711 isl_qpolynomial *qp;
1712 isl_token_free(tok);
1713 qp = isl_qpolynomial_infty_on_domain(isl_map_get_space(map));
1714 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1715 } else if (tok->type == ISL_TOKEN_NAN) {
1716 isl_qpolynomial *qp;
1717 isl_token_free(tok);
1718 qp = isl_qpolynomial_nan_on_domain(isl_map_get_space(map));
1719 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1720 } else if (tok->type == ISL_TOKEN_IDENT) {
1722 int pos = vars_pos(v, tok->u.s, -1);
1724 isl_qpolynomial *qp;
1726 isl_token_free(tok);
1730 vars_drop(v, v->n - n);
1731 isl_stream_error(s, tok, "unknown identifier");
1732 isl_token_free(tok);
1735 isl_token_free(tok);
1736 pow = optional_power(s);
1737 qp = isl_qpolynomial_var_pow_on_domain(isl_map_get_space(map), pos, pow);
1738 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1739 } else if (tok->type == '[') {
1743 isl_stream_push_token(s, tok);
1744 pwaff = accept_div(s, isl_map_get_space(map), v);
1745 pow = optional_power(s);
1746 pwqp = isl_pw_qpolynomial_from_pw_aff(pwaff);
1747 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1748 } else if (tok->type == '-') {
1749 isl_token_free(tok);
1750 pwqp = read_factor(s, map, v);
1751 pwqp = isl_pw_qpolynomial_neg(pwqp);
1753 isl_stream_error(s, tok, "unexpected isl_token");
1754 isl_stream_push_token(s, tok);
1758 if (isl_stream_eat_if_available(s, '*') ||
1759 isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
1760 isl_pw_qpolynomial *pwqp2;
1762 pwqp2 = read_factor(s, map, v);
1763 pwqp = isl_pw_qpolynomial_mul(pwqp, pwqp2);
1768 isl_pw_qpolynomial_free(pwqp);
1772 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1773 __isl_keep isl_map *map, struct vars *v)
1775 struct isl_token *tok;
1776 isl_pw_qpolynomial *pwqp;
1778 pwqp = read_factor(s, map, v);
1781 tok = next_token(s);
1785 if (tok->type == '+') {
1786 isl_pw_qpolynomial *pwqp2;
1788 isl_token_free(tok);
1789 pwqp2 = read_factor(s, map, v);
1790 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1791 } else if (tok->type == '-') {
1792 isl_pw_qpolynomial *pwqp2;
1794 isl_token_free(tok);
1795 pwqp2 = read_factor(s, map, v);
1796 pwqp = isl_pw_qpolynomial_sub(pwqp, pwqp2);
1797 } else if (tok->type == ISL_TOKEN_VALUE &&
1798 isl_int_is_neg(tok->u.v)) {
1799 isl_pw_qpolynomial *pwqp2;
1801 isl_stream_push_token(s, tok);
1802 pwqp2 = read_factor(s, map, v);
1803 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1805 isl_stream_push_token(s, tok);
1813 static __isl_give isl_map *read_optional_disjuncts(struct isl_stream *s,
1814 __isl_take isl_map *map, struct vars *v, int rational)
1816 struct isl_token *tok;
1818 tok = isl_stream_next_token(s);
1820 isl_stream_error(s, NULL, "unexpected EOF");
1823 if (tok->type == ':' ||
1824 (tok->type == ISL_TOKEN_OR && !strcmp(tok->u.s, "|"))) {
1825 isl_token_free(tok);
1826 map = read_disjuncts(s, v, map, rational);
1828 isl_stream_push_token(s, tok);
1836 static struct isl_obj obj_read_poly(struct isl_stream *s,
1837 __isl_take isl_map *map, struct vars *v, int n)
1839 struct isl_obj obj = { isl_obj_pw_qpolynomial, NULL };
1840 isl_pw_qpolynomial *pwqp;
1841 struct isl_set *set;
1843 pwqp = read_term(s, map, v);
1844 map = read_optional_disjuncts(s, map, v, 0);
1845 set = isl_map_range(map);
1847 pwqp = isl_pw_qpolynomial_intersect_domain(pwqp, set);
1849 vars_drop(v, v->n - n);
1855 static struct isl_obj obj_read_poly_or_fold(struct isl_stream *s,
1856 __isl_take isl_set *set, struct vars *v, int n)
1858 struct isl_obj obj = { isl_obj_pw_qpolynomial_fold, NULL };
1859 isl_pw_qpolynomial *pwqp;
1860 isl_pw_qpolynomial_fold *pwf = NULL;
1862 if (!isl_stream_eat_if_available(s, ISL_TOKEN_MAX))
1863 return obj_read_poly(s, set, v, n);
1865 if (isl_stream_eat(s, '('))
1868 pwqp = read_term(s, set, v);
1869 pwf = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max, pwqp);
1871 while (isl_stream_eat_if_available(s, ',')) {
1872 isl_pw_qpolynomial_fold *pwf_i;
1873 pwqp = read_term(s, set, v);
1874 pwf_i = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max,
1876 pwf = isl_pw_qpolynomial_fold_fold(pwf, pwf_i);
1879 if (isl_stream_eat(s, ')'))
1882 set = read_optional_disjuncts(s, set, v, 0);
1883 pwf = isl_pw_qpolynomial_fold_intersect_domain(pwf, set);
1885 vars_drop(v, v->n - n);
1891 isl_pw_qpolynomial_fold_free(pwf);
1892 obj.type = isl_obj_none;
1896 static int is_rational(struct isl_stream *s)
1898 struct isl_token *tok;
1900 tok = isl_stream_next_token(s);
1903 if (tok->type == ISL_TOKEN_RAT && isl_stream_next_token_is(s, ':')) {
1904 isl_token_free(tok);
1905 isl_stream_eat(s, ':');
1909 isl_stream_push_token(s, tok);
1914 static struct isl_obj obj_read_body(struct isl_stream *s,
1915 __isl_take isl_map *map, struct vars *v)
1917 struct isl_token *tok;
1918 struct isl_obj obj = { isl_obj_set, NULL };
1922 rational = is_rational(s);
1924 map = isl_map_set_rational(map);
1926 if (isl_stream_next_token_is(s, ':')) {
1927 obj.type = isl_obj_set;
1928 obj.v = read_optional_disjuncts(s, map, v, rational);
1932 if (!next_is_tuple(s))
1933 return obj_read_poly_or_fold(s, map, v, n);
1935 map = read_map_tuple(s, map, isl_dim_in, v, rational, 0);
1938 tok = isl_stream_next_token(s);
1941 if (tok->type == ISL_TOKEN_TO) {
1942 obj.type = isl_obj_map;
1943 isl_token_free(tok);
1944 if (!next_is_tuple(s)) {
1945 isl_set *set = isl_map_domain(map);
1946 return obj_read_poly_or_fold(s, set, v, n);
1948 map = read_map_tuple(s, map, isl_dim_out, v, rational, 0);
1952 map = isl_map_domain(map);
1953 isl_stream_push_token(s, tok);
1956 map = read_optional_disjuncts(s, map, v, rational);
1958 vars_drop(v, v->n - n);
1964 obj.type = isl_obj_none;
1968 static struct isl_obj to_union(isl_ctx *ctx, struct isl_obj obj)
1970 if (obj.type == isl_obj_map) {
1971 obj.v = isl_union_map_from_map(obj.v);
1972 obj.type = isl_obj_union_map;
1973 } else if (obj.type == isl_obj_set) {
1974 obj.v = isl_union_set_from_set(obj.v);
1975 obj.type = isl_obj_union_set;
1976 } else if (obj.type == isl_obj_pw_qpolynomial) {
1977 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
1978 obj.type = isl_obj_union_pw_qpolynomial;
1979 } else if (obj.type == isl_obj_pw_qpolynomial_fold) {
1980 obj.v = isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj.v);
1981 obj.type = isl_obj_union_pw_qpolynomial_fold;
1983 isl_assert(ctx, 0, goto error);
1986 obj.type->free(obj.v);
1987 obj.type = isl_obj_none;
1991 static struct isl_obj obj_add(struct isl_ctx *ctx,
1992 struct isl_obj obj1, struct isl_obj obj2)
1994 if (obj1.type == isl_obj_set && obj2.type == isl_obj_union_set)
1995 obj1 = to_union(ctx, obj1);
1996 if (obj1.type == isl_obj_union_set && obj2.type == isl_obj_set)
1997 obj2 = to_union(ctx, obj2);
1998 if (obj1.type == isl_obj_map && obj2.type == isl_obj_union_map)
1999 obj1 = to_union(ctx, obj1);
2000 if (obj1.type == isl_obj_union_map && obj2.type == isl_obj_map)
2001 obj2 = to_union(ctx, obj2);
2002 if (obj1.type == isl_obj_pw_qpolynomial &&
2003 obj2.type == isl_obj_union_pw_qpolynomial)
2004 obj1 = to_union(ctx, obj1);
2005 if (obj1.type == isl_obj_union_pw_qpolynomial &&
2006 obj2.type == isl_obj_pw_qpolynomial)
2007 obj2 = to_union(ctx, obj2);
2008 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
2009 obj2.type == isl_obj_union_pw_qpolynomial_fold)
2010 obj1 = to_union(ctx, obj1);
2011 if (obj1.type == isl_obj_union_pw_qpolynomial_fold &&
2012 obj2.type == isl_obj_pw_qpolynomial_fold)
2013 obj2 = to_union(ctx, obj2);
2014 isl_assert(ctx, obj1.type == obj2.type, goto error);
2015 if (obj1.type == isl_obj_map && !isl_map_has_equal_space(obj1.v, obj2.v)) {
2016 obj1 = to_union(ctx, obj1);
2017 obj2 = to_union(ctx, obj2);
2019 if (obj1.type == isl_obj_set && !isl_set_has_equal_space(obj1.v, obj2.v)) {
2020 obj1 = to_union(ctx, obj1);
2021 obj2 = to_union(ctx, obj2);
2023 if (obj1.type == isl_obj_pw_qpolynomial &&
2024 !isl_pw_qpolynomial_has_equal_space(obj1.v, obj2.v)) {
2025 obj1 = to_union(ctx, obj1);
2026 obj2 = to_union(ctx, obj2);
2028 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
2029 !isl_pw_qpolynomial_fold_has_equal_space(obj1.v, obj2.v)) {
2030 obj1 = to_union(ctx, obj1);
2031 obj2 = to_union(ctx, obj2);
2033 obj1.v = obj1.type->add(obj1.v, obj2.v);
2036 obj1.type->free(obj1.v);
2037 obj2.type->free(obj2.v);
2038 obj1.type = isl_obj_none;
2043 static struct isl_obj obj_read(struct isl_stream *s)
2045 isl_map *map = NULL;
2046 struct isl_token *tok;
2047 struct vars *v = NULL;
2048 struct isl_obj obj = { isl_obj_set, NULL };
2050 tok = next_token(s);
2052 isl_stream_error(s, NULL, "unexpected EOF");
2055 if (tok->type == ISL_TOKEN_VALUE) {
2056 struct isl_token *tok2;
2057 struct isl_map *map;
2059 tok2 = isl_stream_next_token(s);
2060 if (!tok2 || tok2->type != ISL_TOKEN_VALUE ||
2061 isl_int_is_neg(tok2->u.v)) {
2063 isl_stream_push_token(s, tok2);
2064 obj.type = isl_obj_int;
2065 obj.v = isl_int_obj_alloc(s->ctx, tok->u.v);
2066 isl_token_free(tok);
2069 isl_stream_push_token(s, tok2);
2070 isl_stream_push_token(s, tok);
2071 map = map_read_polylib(s);
2074 if (isl_map_may_be_set(map))
2075 obj.v = isl_map_range(map);
2077 obj.type = isl_obj_map;
2082 v = vars_new(s->ctx);
2084 isl_stream_push_token(s, tok);
2087 map = isl_map_universe(isl_space_params_alloc(s->ctx, 0));
2088 if (tok->type == '[') {
2089 isl_stream_push_token(s, tok);
2090 map = read_map_tuple(s, map, isl_dim_param, v, 0, 0);
2093 tok = isl_stream_next_token(s);
2094 if (!tok || tok->type != ISL_TOKEN_TO) {
2095 isl_stream_error(s, tok, "expecting '->'");
2097 isl_stream_push_token(s, tok);
2100 isl_token_free(tok);
2101 tok = isl_stream_next_token(s);
2103 if (!tok || tok->type != '{') {
2104 isl_stream_error(s, tok, "expecting '{'");
2106 isl_stream_push_token(s, tok);
2109 isl_token_free(tok);
2111 tok = isl_stream_next_token(s);
2114 else if (tok->type == ISL_TOKEN_IDENT && !strcmp(tok->u.s, "Sym")) {
2115 isl_token_free(tok);
2116 if (isl_stream_eat(s, '='))
2118 map = read_map_tuple(s, map, isl_dim_param, v, 0, 1);
2121 } else if (tok->type == '}') {
2122 obj.type = isl_obj_union_set;
2123 obj.v = isl_union_set_empty(isl_map_get_space(map));
2124 isl_token_free(tok);
2127 isl_stream_push_token(s, tok);
2132 o = obj_read_body(s, isl_map_copy(map), v);
2133 if (o.type == isl_obj_none || !o.v)
2138 obj = obj_add(s->ctx, obj, o);
2139 if (obj.type == isl_obj_none || !obj.v)
2142 tok = isl_stream_next_token(s);
2143 if (!tok || tok->type != ';')
2145 isl_token_free(tok);
2146 if (isl_stream_next_token_is(s, '}')) {
2147 tok = isl_stream_next_token(s);
2152 if (tok && tok->type == '}') {
2153 isl_token_free(tok);
2155 isl_stream_error(s, tok, "unexpected isl_token");
2157 isl_token_free(tok);
2167 obj.type->free(obj.v);
2174 struct isl_obj isl_stream_read_obj(struct isl_stream *s)
2179 __isl_give isl_map *isl_stream_read_map(struct isl_stream *s)
2185 isl_assert(s->ctx, obj.type == isl_obj_map ||
2186 obj.type == isl_obj_set, goto error);
2188 if (obj.type == isl_obj_set)
2189 obj.v = isl_map_from_range(obj.v);
2193 obj.type->free(obj.v);
2197 __isl_give isl_set *isl_stream_read_set(struct isl_stream *s)
2203 if (obj.type == isl_obj_map && isl_map_may_be_set(obj.v)) {
2204 obj.v = isl_map_range(obj.v);
2205 obj.type = isl_obj_set;
2207 isl_assert(s->ctx, obj.type == isl_obj_set, goto error);
2212 obj.type->free(obj.v);
2216 __isl_give isl_union_map *isl_stream_read_union_map(struct isl_stream *s)
2221 if (obj.type == isl_obj_map) {
2222 obj.type = isl_obj_union_map;
2223 obj.v = isl_union_map_from_map(obj.v);
2225 if (obj.type == isl_obj_set) {
2226 obj.type = isl_obj_union_set;
2227 obj.v = isl_union_set_from_set(obj.v);
2229 if (obj.v && obj.type == isl_obj_union_set &&
2230 isl_union_set_is_empty(obj.v))
2231 obj.type = isl_obj_union_map;
2232 if (obj.v && obj.type != isl_obj_union_map)
2233 isl_die(s->ctx, isl_error_invalid, "invalid input", goto error);
2237 obj.type->free(obj.v);
2241 __isl_give isl_union_set *isl_stream_read_union_set(struct isl_stream *s)
2246 if (obj.type == isl_obj_set) {
2247 obj.type = isl_obj_union_set;
2248 obj.v = isl_union_set_from_set(obj.v);
2251 isl_assert(s->ctx, obj.type == isl_obj_union_set, goto error);
2255 obj.type->free(obj.v);
2259 static __isl_give isl_basic_map *basic_map_read(struct isl_stream *s)
2262 struct isl_map *map;
2263 struct isl_basic_map *bmap;
2270 isl_assert(map->ctx, map->n <= 1, goto error);
2273 bmap = isl_basic_map_empty_like_map(map);
2275 bmap = isl_basic_map_copy(map->p[0]);
2285 static __isl_give isl_basic_set *basic_set_read(struct isl_stream *s)
2287 isl_basic_map *bmap;
2288 bmap = basic_map_read(s);
2291 if (!isl_basic_map_may_be_set(bmap))
2292 isl_die(s->ctx, isl_error_invalid,
2293 "input is not a set", goto error);
2294 return isl_basic_map_range(bmap);
2296 isl_basic_map_free(bmap);
2300 __isl_give isl_basic_map *isl_basic_map_read_from_file(isl_ctx *ctx,
2303 struct isl_basic_map *bmap;
2304 struct isl_stream *s = isl_stream_new_file(ctx, input);
2307 bmap = basic_map_read(s);
2312 __isl_give isl_basic_set *isl_basic_set_read_from_file(isl_ctx *ctx,
2315 isl_basic_set *bset;
2316 struct isl_stream *s = isl_stream_new_file(ctx, input);
2319 bset = basic_set_read(s);
2324 struct isl_basic_map *isl_basic_map_read_from_str(struct isl_ctx *ctx,
2327 struct isl_basic_map *bmap;
2328 struct isl_stream *s = isl_stream_new_str(ctx, str);
2331 bmap = basic_map_read(s);
2336 struct isl_basic_set *isl_basic_set_read_from_str(struct isl_ctx *ctx,
2339 isl_basic_set *bset;
2340 struct isl_stream *s = isl_stream_new_str(ctx, str);
2343 bset = basic_set_read(s);
2348 __isl_give isl_map *isl_map_read_from_file(struct isl_ctx *ctx,
2351 struct isl_map *map;
2352 struct isl_stream *s = isl_stream_new_file(ctx, input);
2355 map = isl_stream_read_map(s);
2360 __isl_give isl_map *isl_map_read_from_str(struct isl_ctx *ctx,
2363 struct isl_map *map;
2364 struct isl_stream *s = isl_stream_new_str(ctx, str);
2367 map = isl_stream_read_map(s);
2372 __isl_give isl_set *isl_set_read_from_file(struct isl_ctx *ctx,
2376 struct isl_stream *s = isl_stream_new_file(ctx, input);
2379 set = isl_stream_read_set(s);
2384 struct isl_set *isl_set_read_from_str(struct isl_ctx *ctx,
2388 struct isl_stream *s = isl_stream_new_str(ctx, str);
2391 set = isl_stream_read_set(s);
2396 __isl_give isl_union_map *isl_union_map_read_from_file(isl_ctx *ctx,
2399 isl_union_map *umap;
2400 struct isl_stream *s = isl_stream_new_file(ctx, input);
2403 umap = isl_stream_read_union_map(s);
2408 __isl_give isl_union_map *isl_union_map_read_from_str(struct isl_ctx *ctx,
2411 isl_union_map *umap;
2412 struct isl_stream *s = isl_stream_new_str(ctx, str);
2415 umap = isl_stream_read_union_map(s);
2420 __isl_give isl_union_set *isl_union_set_read_from_file(isl_ctx *ctx,
2423 isl_union_set *uset;
2424 struct isl_stream *s = isl_stream_new_file(ctx, input);
2427 uset = isl_stream_read_union_set(s);
2432 __isl_give isl_union_set *isl_union_set_read_from_str(struct isl_ctx *ctx,
2435 isl_union_set *uset;
2436 struct isl_stream *s = isl_stream_new_str(ctx, str);
2439 uset = isl_stream_read_union_set(s);
2444 static __isl_give isl_vec *isl_vec_read_polylib(struct isl_stream *s)
2446 struct isl_vec *vec = NULL;
2447 struct isl_token *tok;
2451 tok = isl_stream_next_token(s);
2452 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2453 isl_stream_error(s, tok, "expecting vector length");
2457 size = isl_int_get_si(tok->u.v);
2458 isl_token_free(tok);
2460 vec = isl_vec_alloc(s->ctx, size);
2462 for (j = 0; j < size; ++j) {
2463 tok = isl_stream_next_token(s);
2464 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2465 isl_stream_error(s, tok, "expecting constant value");
2468 isl_int_set(vec->el[j], tok->u.v);
2469 isl_token_free(tok);
2474 isl_token_free(tok);
2479 static __isl_give isl_vec *vec_read(struct isl_stream *s)
2481 return isl_vec_read_polylib(s);
2484 __isl_give isl_vec *isl_vec_read_from_file(isl_ctx *ctx, FILE *input)
2487 struct isl_stream *s = isl_stream_new_file(ctx, input);
2495 __isl_give isl_pw_qpolynomial *isl_stream_read_pw_qpolynomial(
2496 struct isl_stream *s)
2502 isl_assert(s->ctx, obj.type == isl_obj_pw_qpolynomial,
2507 obj.type->free(obj.v);
2511 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_str(isl_ctx *ctx,
2514 isl_pw_qpolynomial *pwqp;
2515 struct isl_stream *s = isl_stream_new_str(ctx, str);
2518 pwqp = isl_stream_read_pw_qpolynomial(s);
2523 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_file(isl_ctx *ctx,
2526 isl_pw_qpolynomial *pwqp;
2527 struct isl_stream *s = isl_stream_new_file(ctx, input);
2530 pwqp = isl_stream_read_pw_qpolynomial(s);
2535 /* Is the next token an identifer not in "v"?
2537 static int next_is_fresh_ident(struct isl_stream *s, struct vars *v)
2541 struct isl_token *tok;
2543 tok = isl_stream_next_token(s);
2546 fresh = tok->type == ISL_TOKEN_IDENT && vars_pos(v, tok->u.s, -1) >= n;
2547 isl_stream_push_token(s, tok);
2549 vars_drop(v, v->n - n);
2554 /* First read the domain of the affine expression, which may be
2555 * a parameter space or a set.
2556 * The tricky part is that we don't know if the domain is a set or not,
2557 * so when we are trying to read the domain, we may actually be reading
2558 * the affine expression itself (defined on a parameter domains)
2559 * If the tuple we are reading is named, we assume it's the domain.
2560 * Also, if inside the tuple, the first thing we find is a nested tuple
2561 * or a new identifier, we again assume it's the domain.
2562 * Otherwise, we assume we are reading an affine expression.
2564 static __isl_give isl_set *read_aff_domain(struct isl_stream *s,
2565 __isl_take isl_set *dom, struct vars *v)
2567 struct isl_token *tok;
2569 tok = isl_stream_next_token(s);
2570 if (tok && (tok->type == ISL_TOKEN_IDENT || tok->is_keyword)) {
2571 isl_stream_push_token(s, tok);
2572 return read_map_tuple(s, dom, isl_dim_set, v, 1, 0);
2574 if (!tok || tok->type != '[') {
2575 isl_stream_error(s, tok, "expecting '['");
2578 if (next_is_tuple(s) || next_is_fresh_ident(s, v)) {
2579 isl_stream_push_token(s, tok);
2580 dom = read_map_tuple(s, dom, isl_dim_set, v, 1, 0);
2582 isl_stream_push_token(s, tok);
2587 isl_stream_push_token(s, tok);
2592 /* Read an affine expression from "s".
2594 __isl_give isl_aff *isl_stream_read_aff(struct isl_stream *s)
2599 ma = isl_stream_read_multi_aff(s);
2602 if (isl_multi_aff_dim(ma, isl_dim_out) != 1)
2603 isl_die(s->ctx, isl_error_invalid,
2604 "expecting single affine expression",
2607 aff = isl_multi_aff_get_aff(ma, 0);
2608 isl_multi_aff_free(ma);
2611 isl_multi_aff_free(ma);
2615 /* Read a piecewise affine expression from "s" with domain (space) "dom".
2617 static __isl_give isl_pw_aff *read_pw_aff_with_dom(struct isl_stream *s,
2618 __isl_take isl_set *dom, struct vars *v)
2620 isl_pw_aff *pwaff = NULL;
2622 if (!isl_set_is_params(dom) && isl_stream_eat(s, ISL_TOKEN_TO))
2625 if (isl_stream_eat(s, '['))
2628 pwaff = accept_affine(s, isl_set_get_space(dom), v);
2630 if (isl_stream_eat(s, ']'))
2633 dom = read_optional_disjuncts(s, dom, v, 0);
2634 pwaff = isl_pw_aff_intersect_domain(pwaff, dom);
2639 isl_pw_aff_free(pwaff);
2643 __isl_give isl_pw_aff *isl_stream_read_pw_aff(struct isl_stream *s)
2646 isl_set *dom = NULL;
2648 isl_pw_aff *pa = NULL;
2651 v = vars_new(s->ctx);
2655 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2656 if (next_is_tuple(s)) {
2657 dom = read_map_tuple(s, dom, isl_dim_param, v, 1, 0);
2658 if (isl_stream_eat(s, ISL_TOKEN_TO))
2661 if (isl_stream_eat(s, '{'))
2665 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2666 pa = read_pw_aff_with_dom(s, aff_dom, v);
2667 vars_drop(v, v->n - n);
2669 while (isl_stream_eat_if_available(s, ';')) {
2673 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2674 pa_i = read_pw_aff_with_dom(s, aff_dom, v);
2675 vars_drop(v, v->n - n);
2677 pa = isl_pw_aff_union_add(pa, pa_i);
2680 if (isl_stream_eat(s, '}'))
2689 isl_pw_aff_free(pa);
2693 __isl_give isl_aff *isl_aff_read_from_str(isl_ctx *ctx, const char *str)
2696 struct isl_stream *s = isl_stream_new_str(ctx, str);
2699 aff = isl_stream_read_aff(s);
2704 __isl_give isl_pw_aff *isl_pw_aff_read_from_str(isl_ctx *ctx, const char *str)
2707 struct isl_stream *s = isl_stream_new_str(ctx, str);
2710 pa = isl_stream_read_pw_aff(s);
2715 /* Read an isl_pw_multi_aff from "s".
2716 * We currently read a generic object and if it turns out to be a set or
2717 * a map, we convert that to an isl_pw_multi_aff.
2718 * It would be more efficient if we were to construct the isl_pw_multi_aff
2721 __isl_give isl_pw_multi_aff *isl_stream_read_pw_multi_aff(struct isl_stream *s)
2729 if (obj.type == isl_obj_map)
2730 return isl_pw_multi_aff_from_map(obj.v);
2731 if (obj.type == isl_obj_set)
2732 return isl_pw_multi_aff_from_set(obj.v);
2734 obj.type->free(obj.v);
2735 isl_die(s->ctx, isl_error_invalid, "unexpected object type",
2739 __isl_give isl_pw_multi_aff *isl_pw_multi_aff_read_from_str(isl_ctx *ctx,
2742 isl_pw_multi_aff *pma;
2743 struct isl_stream *s = isl_stream_new_str(ctx, str);
2746 pma = isl_stream_read_pw_multi_aff(s);
2751 /* Assuming "pa" represents a single affine expression defined on a universe
2752 * domain, extract this affine expression.
2754 static __isl_give isl_aff *aff_from_pw_aff(__isl_take isl_pw_aff *pa)
2761 isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
2762 "expecting single affine expression",
2764 if (!isl_set_plain_is_universe(pa->p[0].set))
2765 isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
2766 "expecting universe domain",
2769 aff = isl_aff_copy(pa->p[0].aff);
2770 isl_pw_aff_free(pa);
2773 isl_pw_aff_free(pa);
2777 /* Read a multi-affine expression from "s".
2778 * If the multi-affine expression has a domain, then then tuple
2779 * representing this domain cannot involve any affine expressions.
2780 * The tuple representing the actual expressions needs to consist
2781 * of only affine expressions. Moreover, these expressions can
2782 * only depend on parameters and input dimensions and not on other
2783 * output dimensions.
2785 __isl_give isl_multi_aff *isl_stream_read_multi_aff(struct isl_stream *s)
2788 isl_set *dom = NULL;
2789 isl_multi_pw_aff *tuple = NULL;
2791 isl_space *space, *dom_space;
2792 isl_multi_aff *ma = NULL;
2794 v = vars_new(s->ctx);
2798 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2799 if (next_is_tuple(s)) {
2800 dom = read_map_tuple(s, dom, isl_dim_param, v, 1, 0);
2801 if (isl_stream_eat(s, ISL_TOKEN_TO))
2804 if (!isl_set_plain_is_universe(dom))
2805 isl_die(s->ctx, isl_error_invalid,
2806 "expecting universe parameter domain", goto error);
2807 if (isl_stream_eat(s, '{'))
2810 tuple = read_tuple(s, v, 0, 0);
2813 if (isl_stream_eat_if_available(s, ISL_TOKEN_TO)) {
2818 has_expr = tuple_has_expr(tuple);
2822 isl_die(s->ctx, isl_error_invalid,
2823 "expecting universe domain", goto error);
2824 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
2825 set = isl_set_universe(space);
2826 dom = isl_set_intersect_params(set, dom);
2827 isl_multi_pw_aff_free(tuple);
2828 tuple = read_tuple(s, v, 0, 0);
2833 if (isl_stream_eat(s, '}'))
2836 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
2837 dim = isl_set_dim(dom, isl_dim_all);
2838 dom_space = isl_set_get_space(dom);
2839 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
2840 space = isl_space_align_params(space, isl_space_copy(dom_space));
2841 if (!isl_space_is_params(dom_space))
2842 space = isl_space_map_from_domain_and_range(
2843 isl_space_copy(dom_space), space);
2844 isl_space_free(dom_space);
2845 ma = isl_multi_aff_alloc(space);
2847 for (i = 0; i < n; ++i) {
2850 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
2851 aff = aff_from_pw_aff(pa);
2854 if (isl_aff_involves_dims(aff, isl_dim_in, dim, i + 1)) {
2856 isl_die(s->ctx, isl_error_invalid,
2857 "not an affine expression", goto error);
2859 aff = isl_aff_drop_dims(aff, isl_dim_in, dim, n);
2860 space = isl_multi_aff_get_domain_space(ma);
2861 aff = isl_aff_reset_domain_space(aff, space);
2862 ma = isl_multi_aff_set_aff(ma, i, aff);
2865 isl_multi_pw_aff_free(tuple);
2870 isl_multi_pw_aff_free(tuple);
2873 isl_multi_aff_free(ma);
2877 __isl_give isl_multi_aff *isl_multi_aff_read_from_str(isl_ctx *ctx,
2880 isl_multi_aff *maff;
2881 struct isl_stream *s = isl_stream_new_str(ctx, str);
2884 maff = isl_stream_read_multi_aff(s);
2889 __isl_give isl_union_pw_qpolynomial *isl_stream_read_union_pw_qpolynomial(
2890 struct isl_stream *s)
2895 if (obj.type == isl_obj_pw_qpolynomial) {
2896 obj.type = isl_obj_union_pw_qpolynomial;
2897 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
2900 isl_assert(s->ctx, obj.type == isl_obj_union_pw_qpolynomial,
2905 obj.type->free(obj.v);
2909 __isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_read_from_str(
2910 isl_ctx *ctx, const char *str)
2912 isl_union_pw_qpolynomial *upwqp;
2913 struct isl_stream *s = isl_stream_new_str(ctx, str);
2916 upwqp = isl_stream_read_union_pw_qpolynomial(s);