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, int rational);
553 static __isl_give isl_pw_aff *accept_extended_affine(struct isl_stream *s,
554 __isl_take isl_space *dim, struct vars *v, int rational);
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, int rational)
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, rational);
575 if (isl_stream_eat(s, ':'))
578 dim = isl_pw_aff_get_domain_space(pwaff1);
579 pwaff2 = accept_extended_affine(s, dim, v, rational);
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, int rational)
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);
617 pwaff = isl_pw_aff_set_rational(pwaff);
621 tok = isl_stream_next_token(s);
623 return isl_pw_aff_free(pwaff);
625 is_comp = is_comparator(tok);
626 isl_stream_push_token(s, tok);
630 tok = isl_token_new(s->ctx, line, col, 0);
632 return isl_pw_aff_free(pwaff);
633 tok->type = ISL_TOKEN_AFF;
634 tok->u.pwaff = pwaff;
636 space = isl_pw_aff_get_domain_space(pwaff);
637 cond = isl_map_universe(isl_space_unwrap(space));
639 isl_stream_push_token(s, tok);
641 cond = read_disjuncts(s, v, cond, rational);
643 return accept_ternary(s, cond, v, rational);
646 static __isl_give isl_map *read_var_def(struct isl_stream *s,
647 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v,
654 if (type == isl_dim_param)
655 pos = isl_map_dim(map, isl_dim_param);
657 pos = isl_map_dim(map, isl_dim_in);
658 if (type == isl_dim_out)
659 pos += isl_map_dim(map, isl_dim_out);
664 def = accept_extended_affine(s, isl_space_wrap(isl_map_get_space(map)),
666 def_map = isl_map_from_pw_aff(def);
667 def_map = isl_map_equate(def_map, type, pos, isl_dim_out, 0);
668 def_map = isl_set_unwrap(isl_map_domain(def_map));
670 map = isl_map_intersect(map, def_map);
675 static __isl_give isl_pw_aff_list *accept_affine_list(struct isl_stream *s,
676 __isl_take isl_space *dim, struct vars *v)
679 isl_pw_aff_list *list;
680 struct isl_token *tok = NULL;
682 pwaff = accept_affine(s, isl_space_copy(dim), v);
683 list = isl_pw_aff_list_from_pw_aff(pwaff);
688 tok = isl_stream_next_token(s);
690 isl_stream_error(s, NULL, "unexpected EOF");
693 if (tok->type != ',') {
694 isl_stream_push_token(s, tok);
699 pwaff = accept_affine(s, isl_space_copy(dim), v);
700 list = isl_pw_aff_list_concat(list,
701 isl_pw_aff_list_from_pw_aff(pwaff));
710 isl_pw_aff_list_free(list);
714 static __isl_give isl_map *read_defined_var_list(struct isl_stream *s,
715 struct vars *v, __isl_take isl_map *map, int rational)
717 struct isl_token *tok;
719 while ((tok = isl_stream_next_token(s)) != NULL) {
723 if (tok->type != ISL_TOKEN_IDENT)
726 p = vars_pos(v, tok->u.s, -1);
730 isl_stream_error(s, tok, "expecting unique identifier");
734 map = isl_map_add_dims(map, isl_dim_out, 1);
737 tok = isl_stream_next_token(s);
738 if (tok && tok->type == '=') {
740 map = read_var_def(s, map, isl_dim_out, v, rational);
741 tok = isl_stream_next_token(s);
744 if (!tok || tok->type != ',')
750 isl_stream_push_token(s, tok);
759 static int next_is_tuple(struct isl_stream *s)
761 struct isl_token *tok;
764 tok = isl_stream_next_token(s);
767 if (tok->type == '[') {
768 isl_stream_push_token(s, tok);
771 if (tok->type != ISL_TOKEN_IDENT && !tok->is_keyword) {
772 isl_stream_push_token(s, tok);
776 is_tuple = isl_stream_next_token_is(s, '[');
778 isl_stream_push_token(s, tok);
783 /* Allocate an initial tuple with zero dimensions and an anonymous,
784 * unstructured space.
785 * A tuple is represented as an isl_multi_pw_aff.
786 * The range space is the space of the tuple.
787 * The domain space is an anonymous space
788 * with a dimension for each variable in the set of variables in "v".
789 * If a given dimension is not defined in terms of earlier dimensions in
790 * the input, then the corresponding isl_pw_aff is set equal to one time
791 * the variable corresponding to the dimension being defined.
793 static __isl_give isl_multi_pw_aff *tuple_alloc(struct vars *v)
795 return isl_multi_pw_aff_alloc(isl_space_alloc(v->ctx, 0, v->n, 0));
798 /* Is "pa" an expression in term of earlier dimensions?
799 * The alternative is that the dimension is defined to be equal to itself,
800 * meaning that it has a universe domain and an expression that depends
801 * on itself. "i" is the position of the expression in a sequence
802 * of "n" expressions. The final dimensions of "pa" correspond to
803 * these "n" expressions.
805 static int pw_aff_is_expr(__isl_keep isl_pw_aff *pa, int i, int n)
813 if (!isl_set_plain_is_universe(pa->p[0].set))
817 if (isl_int_is_zero(aff->v->el[aff->v->size - n + i]))
822 /* Does the tuple contain any dimensions that are defined
823 * in terms of earlier dimensions?
825 static int tuple_has_expr(__isl_keep isl_multi_pw_aff *tuple)
833 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
834 for (i = 0; i < n; ++i) {
835 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
836 has_expr = pw_aff_is_expr(pa, i, n);
838 if (has_expr < 0 || has_expr)
845 /* Add a dimension to the given tuple.
846 * The dimension is initially undefined, so it is encoded
847 * as one times itself.
849 static __isl_give isl_multi_pw_aff *tuple_add_dim(
850 __isl_take isl_multi_pw_aff *tuple, struct vars *v)
856 tuple = isl_multi_pw_aff_add_dims(tuple, isl_dim_in, 1);
857 space = isl_multi_pw_aff_get_domain_space(tuple);
858 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
859 aff = isl_aff_add_coefficient_si(aff, isl_dim_in, v->n, 1);
860 pa = isl_pw_aff_from_aff(aff);
861 tuple = isl_multi_pw_aff_flat_range_product(tuple,
862 isl_multi_pw_aff_from_pw_aff(pa));
867 /* Set the name of dimension "pos" in "tuple" to "name".
868 * During printing, we add primes if the same name appears more than once
869 * to distinguish the occurrences. Here, we remove those primes from "name"
870 * before setting the name of the dimension.
872 static __isl_give isl_multi_pw_aff *tuple_set_dim_name(
873 __isl_take isl_multi_pw_aff *tuple, int pos, char *name)
880 prime = strchr(name, '\'');
883 tuple = isl_multi_pw_aff_set_dim_name(tuple, isl_dim_set, pos, name);
890 /* Read an affine expression from "s" and replace the definition
891 * of dimension "pos" in "tuple" by this expression.
893 * accept_extended_affine requires a wrapped space as input.
894 * The domain space of "tuple", on the other hand is an anonymous space,
895 * so we have to adjust the space of the isl_pw_aff before adding it
898 static __isl_give isl_multi_pw_aff *read_tuple_var_def(struct isl_stream *s,
899 __isl_take isl_multi_pw_aff *tuple, int pos, struct vars *v,
905 space = isl_space_wrap(isl_space_alloc(s->ctx, 0, v->n, 0));
906 def = accept_extended_affine(s, space, v, rational);
907 space = isl_space_set_alloc(s->ctx, 0, v->n);
908 def = isl_pw_aff_reset_domain_space(def, space);
909 tuple = isl_multi_pw_aff_set_pw_aff(tuple, pos, def);
914 /* Read a list of variables and/or affine expressions and return the list
915 * as an isl_multi_pw_aff.
916 * The elements in the list are separated by either "," or "][".
917 * If "comma" is set then only "," is allowed.
919 static __isl_give isl_multi_pw_aff *read_tuple_var_list(struct isl_stream *s,
920 struct vars *v, int rational, int comma)
923 struct isl_token *tok;
924 isl_multi_pw_aff *res;
926 res = tuple_alloc(v);
928 if (isl_stream_next_token_is(s, ']'))
931 while ((tok = next_token(s)) != NULL) {
934 res = tuple_add_dim(res, v);
936 if (tok->type == ISL_TOKEN_IDENT) {
938 int p = vars_pos(v, tok->u.s, -1);
945 res = tuple_set_dim_name(res, i, v->v->name);
947 if (isl_stream_eat_if_available(s, '='))
948 res = read_tuple_var_def(s, res, i, v,
951 isl_stream_push_token(s, tok);
953 if (vars_add_anon(v) < 0)
955 res = read_tuple_var_def(s, res, i, v, rational);
958 tok = isl_stream_next_token(s);
959 if (!comma && tok && tok->type == ']' &&
960 isl_stream_next_token_is(s, '[')) {
962 tok = isl_stream_next_token(s);
963 } else if (!tok || tok->type != ',')
970 isl_stream_push_token(s, tok);
975 return isl_multi_pw_aff_free(res);
978 /* Read a tuple and represent it as an isl_multi_pw_aff. See tuple_alloc.
980 static __isl_give isl_multi_pw_aff *read_tuple(struct isl_stream *s,
981 struct vars *v, int rational, int comma)
983 struct isl_token *tok;
985 isl_multi_pw_aff *res = NULL;
987 tok = isl_stream_next_token(s);
990 if (tok->type == ISL_TOKEN_IDENT || tok->is_keyword) {
991 name = strdup(tok->u.s);
996 isl_stream_push_token(s, tok);
997 if (isl_stream_eat(s, '['))
999 if (next_is_tuple(s)) {
1000 isl_multi_pw_aff *out;
1002 res = read_tuple(s, v, rational, comma);
1003 if (isl_stream_eat(s, ISL_TOKEN_TO))
1005 out = read_tuple(s, v, rational, comma);
1006 n = isl_multi_pw_aff_dim(out, isl_dim_out);
1007 res = isl_multi_pw_aff_add_dims(res, isl_dim_in, n);
1008 res = isl_multi_pw_aff_range_product(res, out);
1010 res = read_tuple_var_list(s, v, rational, comma);
1011 if (isl_stream_eat(s, ']'))
1015 res = isl_multi_pw_aff_set_tuple_name(res, isl_dim_out, name);
1022 return isl_multi_pw_aff_free(res);
1025 /* Read a tuple from "s" and add it to "map".
1026 * The tuple is initially represented as an isl_multi_pw_aff.
1027 * We first create the appropriate space in "map" based on the range
1028 * space of this isl_multi_pw_aff. Then, we add equalities based
1029 * on the affine expressions. These live in an anonymous space,
1030 * however, so we first need to reset the space to that of "map".
1032 static __isl_give isl_map *read_map_tuple(struct isl_stream *s,
1033 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v,
1034 int rational, int comma)
1037 isl_multi_pw_aff *tuple;
1038 isl_space *space = NULL;
1040 tuple = read_tuple(s, v, rational, comma);
1044 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
1045 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
1049 if (type == isl_dim_param) {
1050 if (isl_space_has_tuple_name(space, isl_dim_set) ||
1051 isl_space_is_wrapping(space)) {
1052 isl_die(s->ctx, isl_error_invalid,
1053 "parameter tuples cannot be named or nested",
1056 map = isl_map_add_dims(map, type, n);
1057 for (i = 0; i < n; ++i) {
1059 if (!isl_space_has_dim_name(space, isl_dim_set, i))
1060 isl_die(s->ctx, isl_error_invalid,
1061 "parameters must be named",
1063 id = isl_space_get_dim_id(space, isl_dim_set, i);
1064 map = isl_map_set_dim_id(map, isl_dim_param, i, id);
1066 } else if (type == isl_dim_in) {
1069 set = isl_set_universe(isl_space_copy(space));
1071 set = isl_set_set_rational(set);
1072 set = isl_set_intersect_params(set, isl_map_params(map));
1073 map = isl_map_from_domain(set);
1077 set = isl_set_universe(isl_space_copy(space));
1079 set = isl_set_set_rational(set);
1080 map = isl_map_from_domain_and_range(isl_map_domain(map), set);
1083 for (i = 0; i < n; ++i) {
1090 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
1091 space = isl_pw_aff_get_domain_space(pa);
1092 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
1093 aff = isl_aff_add_coefficient_si(aff,
1094 isl_dim_in, v->n - n + i, -1);
1095 pa = isl_pw_aff_add(pa, isl_pw_aff_from_aff(aff));
1097 pa = isl_pw_aff_set_rational(pa);
1098 set = isl_pw_aff_zero_set(pa);
1099 map_i = isl_map_from_range(set);
1100 map_i = isl_map_reset_space(map_i, isl_map_get_space(map));
1101 map = isl_map_intersect(map, map_i);
1104 isl_space_free(space);
1105 isl_multi_pw_aff_free(tuple);
1108 isl_space_free(space);
1109 isl_multi_pw_aff_free(tuple);
1114 static __isl_give isl_set *construct_constraints(
1115 __isl_take isl_set *set, int type,
1116 __isl_keep isl_pw_aff_list *left, __isl_keep isl_pw_aff_list *right,
1121 left = isl_pw_aff_list_copy(left);
1122 right = isl_pw_aff_list_copy(right);
1124 left = isl_pw_aff_list_set_rational(left);
1125 right = isl_pw_aff_list_set_rational(right);
1127 if (type == ISL_TOKEN_LE)
1128 cond = isl_pw_aff_list_le_set(left, right);
1129 else if (type == ISL_TOKEN_GE)
1130 cond = isl_pw_aff_list_ge_set(left, right);
1131 else if (type == ISL_TOKEN_LT)
1132 cond = isl_pw_aff_list_lt_set(left, right);
1133 else if (type == ISL_TOKEN_GT)
1134 cond = isl_pw_aff_list_gt_set(left, right);
1135 else if (type == ISL_TOKEN_NE)
1136 cond = isl_pw_aff_list_ne_set(left, right);
1138 cond = isl_pw_aff_list_eq_set(left, right);
1140 return isl_set_intersect(set, cond);
1143 static __isl_give isl_map *add_constraint(struct isl_stream *s,
1144 struct vars *v, __isl_take isl_map *map, int rational)
1146 struct isl_token *tok = NULL;
1147 isl_pw_aff_list *list1 = NULL, *list2 = NULL;
1150 set = isl_map_wrap(map);
1151 list1 = accept_affine_list(s, isl_set_get_space(set), v);
1154 tok = isl_stream_next_token(s);
1155 if (!is_comparator(tok)) {
1156 isl_stream_error(s, tok, "missing operator");
1158 isl_stream_push_token(s, tok);
1163 list2 = accept_affine_list(s, isl_set_get_space(set), v);
1167 set = construct_constraints(set, tok->type, list1, list2,
1169 isl_token_free(tok);
1170 isl_pw_aff_list_free(list1);
1173 tok = isl_stream_next_token(s);
1174 if (!is_comparator(tok)) {
1176 isl_stream_push_token(s, tok);
1180 isl_pw_aff_list_free(list1);
1182 return isl_set_unwrap(set);
1185 isl_token_free(tok);
1186 isl_pw_aff_list_free(list1);
1187 isl_pw_aff_list_free(list2);
1192 static __isl_give isl_map *read_exists(struct isl_stream *s,
1193 struct vars *v, __isl_take isl_map *map, int rational)
1196 int seen_paren = isl_stream_eat_if_available(s, '(');
1198 map = isl_map_from_domain(isl_map_wrap(map));
1199 map = read_defined_var_list(s, v, map, rational);
1201 if (isl_stream_eat(s, ':'))
1204 map = read_disjuncts(s, v, map, rational);
1205 map = isl_set_unwrap(isl_map_domain(map));
1207 vars_drop(v, v->n - n);
1208 if (seen_paren && isl_stream_eat(s, ')'))
1217 /* Parse an expression between parentheses and push the result
1218 * back on the stream.
1220 * The parsed expression may be either an affine expression
1221 * or a condition. The first type is pushed onto the stream
1222 * as an isl_pw_aff, while the second is pushed as an isl_map.
1224 * If the initial token indicates the start of a condition,
1225 * we parse it as such.
1226 * Otherwise, we first parse an affine expression and push
1227 * that onto the stream. If the affine expression covers the
1228 * entire expression between parentheses, we return.
1229 * Otherwise, we assume that the affine expression is the
1230 * start of a condition and continue parsing.
1232 static int resolve_paren_expr(struct isl_stream *s,
1233 struct vars *v, __isl_take isl_map *map, int rational)
1235 struct isl_token *tok, *tok2;
1239 tok = isl_stream_next_token(s);
1240 if (!tok || tok->type != '(')
1243 if (isl_stream_next_token_is(s, '('))
1244 if (resolve_paren_expr(s, v, isl_map_copy(map), rational))
1247 if (isl_stream_next_token_is(s, ISL_TOKEN_EXISTS) ||
1248 isl_stream_next_token_is(s, ISL_TOKEN_NOT) ||
1249 isl_stream_next_token_is(s, ISL_TOKEN_TRUE) ||
1250 isl_stream_next_token_is(s, ISL_TOKEN_FALSE) ||
1251 isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1252 map = read_disjuncts(s, v, map, rational);
1253 if (isl_stream_eat(s, ')'))
1255 tok->type = ISL_TOKEN_MAP;
1257 isl_stream_push_token(s, tok);
1261 tok2 = isl_stream_next_token(s);
1266 isl_stream_push_token(s, tok2);
1268 pwaff = accept_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
1272 tok2 = isl_token_new(s->ctx, line, col, 0);
1275 tok2->type = ISL_TOKEN_AFF;
1276 tok2->u.pwaff = pwaff;
1278 if (isl_stream_eat_if_available(s, ')')) {
1279 isl_stream_push_token(s, tok2);
1280 isl_token_free(tok);
1285 isl_stream_push_token(s, tok2);
1287 map = read_disjuncts(s, v, map, rational);
1288 if (isl_stream_eat(s, ')'))
1291 tok->type = ISL_TOKEN_MAP;
1293 isl_stream_push_token(s, tok);
1297 isl_pw_aff_free(pwaff);
1299 isl_token_free(tok);
1304 static __isl_give isl_map *read_conjunct(struct isl_stream *s,
1305 struct vars *v, __isl_take isl_map *map, int rational)
1307 if (isl_stream_next_token_is(s, '('))
1308 if (resolve_paren_expr(s, v, isl_map_copy(map), rational))
1311 if (isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1312 struct isl_token *tok;
1313 tok = isl_stream_next_token(s);
1317 map = isl_map_copy(tok->u.map);
1318 isl_token_free(tok);
1322 if (isl_stream_eat_if_available(s, ISL_TOKEN_EXISTS))
1323 return read_exists(s, v, map, rational);
1325 if (isl_stream_eat_if_available(s, ISL_TOKEN_TRUE))
1328 if (isl_stream_eat_if_available(s, ISL_TOKEN_FALSE)) {
1329 isl_space *dim = isl_map_get_space(map);
1331 return isl_map_empty(dim);
1334 return add_constraint(s, v, map, rational);
1340 static __isl_give isl_map *read_conjuncts(struct isl_stream *s,
1341 struct vars *v, __isl_take isl_map *map, int rational)
1346 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1347 res = read_conjunct(s, v, isl_map_copy(map), rational);
1349 res = isl_map_subtract(isl_map_copy(map), res);
1351 while (isl_stream_eat_if_available(s, ISL_TOKEN_AND)) {
1354 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1355 res_i = read_conjunct(s, v, isl_map_copy(map), rational);
1357 res = isl_map_subtract(res, res_i);
1359 res = isl_map_intersect(res, res_i);
1366 static struct isl_map *read_disjuncts(struct isl_stream *s,
1367 struct vars *v, __isl_take isl_map *map, int rational)
1371 if (isl_stream_next_token_is(s, '}')) {
1372 isl_space *dim = isl_map_get_space(map);
1374 return isl_map_universe(dim);
1377 res = read_conjuncts(s, v, isl_map_copy(map), rational);
1378 while (isl_stream_eat_if_available(s, ISL_TOKEN_OR)) {
1381 res_i = read_conjuncts(s, v, isl_map_copy(map), rational);
1382 res = isl_map_union(res, res_i);
1389 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map *bmap, int pos)
1391 if (pos < isl_basic_map_dim(bmap, isl_dim_out))
1392 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1393 isl_basic_map_dim(bmap, isl_dim_in) + pos;
1394 pos -= isl_basic_map_dim(bmap, isl_dim_out);
1396 if (pos < isl_basic_map_dim(bmap, isl_dim_in))
1397 return 1 + isl_basic_map_dim(bmap, isl_dim_param) + pos;
1398 pos -= isl_basic_map_dim(bmap, isl_dim_in);
1400 if (pos < isl_basic_map_dim(bmap, isl_dim_div))
1401 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1402 isl_basic_map_dim(bmap, isl_dim_in) +
1403 isl_basic_map_dim(bmap, isl_dim_out) + pos;
1404 pos -= isl_basic_map_dim(bmap, isl_dim_div);
1406 if (pos < isl_basic_map_dim(bmap, isl_dim_param))
1412 static __isl_give isl_basic_map *basic_map_read_polylib_constraint(
1413 struct isl_stream *s, __isl_take isl_basic_map *bmap)
1416 struct isl_token *tok;
1426 nparam = isl_basic_map_dim(bmap, isl_dim_param);
1427 dim = isl_basic_map_dim(bmap, isl_dim_out);
1429 tok = isl_stream_next_token(s);
1430 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1431 isl_stream_error(s, tok, "expecting coefficient");
1433 isl_stream_push_token(s, tok);
1436 if (!tok->on_new_line) {
1437 isl_stream_error(s, tok, "coefficient should appear on new line");
1438 isl_stream_push_token(s, tok);
1442 type = isl_int_get_si(tok->u.v);
1443 isl_token_free(tok);
1445 isl_assert(s->ctx, type == 0 || type == 1, goto error);
1447 k = isl_basic_map_alloc_equality(bmap);
1450 k = isl_basic_map_alloc_inequality(bmap);
1456 for (j = 0; j < 1 + isl_basic_map_total_dim(bmap); ++j) {
1458 tok = isl_stream_next_token(s);
1459 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1460 isl_stream_error(s, tok, "expecting coefficient");
1462 isl_stream_push_token(s, tok);
1465 if (tok->on_new_line) {
1466 isl_stream_error(s, tok,
1467 "coefficient should not appear on new line");
1468 isl_stream_push_token(s, tok);
1471 pos = polylib_pos_to_isl_pos(bmap, j);
1472 isl_int_set(c[pos], tok->u.v);
1473 isl_token_free(tok);
1478 isl_basic_map_free(bmap);
1482 static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s)
1485 struct isl_token *tok;
1486 struct isl_token *tok2;
1489 unsigned in = 0, out, local = 0;
1490 struct isl_basic_map *bmap = NULL;
1493 tok = isl_stream_next_token(s);
1495 isl_stream_error(s, NULL, "unexpected EOF");
1498 tok2 = isl_stream_next_token(s);
1500 isl_token_free(tok);
1501 isl_stream_error(s, NULL, "unexpected EOF");
1504 if (tok->type != ISL_TOKEN_VALUE || tok2->type != ISL_TOKEN_VALUE) {
1505 isl_stream_push_token(s, tok2);
1506 isl_stream_push_token(s, tok);
1507 isl_stream_error(s, NULL,
1508 "expecting constraint matrix dimensions");
1511 n_row = isl_int_get_si(tok->u.v);
1512 n_col = isl_int_get_si(tok2->u.v);
1513 on_new_line = tok2->on_new_line;
1514 isl_token_free(tok2);
1515 isl_token_free(tok);
1516 isl_assert(s->ctx, !on_new_line, return NULL);
1517 isl_assert(s->ctx, n_row >= 0, return NULL);
1518 isl_assert(s->ctx, n_col >= 2 + nparam, return NULL);
1519 tok = isl_stream_next_token_on_same_line(s);
1521 if (tok->type != ISL_TOKEN_VALUE) {
1522 isl_stream_error(s, tok,
1523 "expecting number of output dimensions");
1524 isl_stream_push_token(s, tok);
1527 out = isl_int_get_si(tok->u.v);
1528 isl_token_free(tok);
1530 tok = isl_stream_next_token_on_same_line(s);
1531 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1532 isl_stream_error(s, tok,
1533 "expecting number of input dimensions");
1535 isl_stream_push_token(s, tok);
1538 in = isl_int_get_si(tok->u.v);
1539 isl_token_free(tok);
1541 tok = isl_stream_next_token_on_same_line(s);
1542 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1543 isl_stream_error(s, tok,
1544 "expecting number of existentials");
1546 isl_stream_push_token(s, tok);
1549 local = isl_int_get_si(tok->u.v);
1550 isl_token_free(tok);
1552 tok = isl_stream_next_token_on_same_line(s);
1553 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1554 isl_stream_error(s, tok,
1555 "expecting number of parameters");
1557 isl_stream_push_token(s, tok);
1560 nparam = isl_int_get_si(tok->u.v);
1561 isl_token_free(tok);
1562 if (n_col != 1 + out + in + local + nparam + 1) {
1563 isl_stream_error(s, NULL,
1564 "dimensions don't match");
1568 out = n_col - 2 - nparam;
1569 bmap = isl_basic_map_alloc(s->ctx, nparam, in, out, local, n_row, n_row);
1573 for (i = 0; i < local; ++i) {
1574 int k = isl_basic_map_alloc_div(bmap);
1577 isl_seq_clr(bmap->div[k], 1 + 1 + nparam + in + out + local);
1580 for (i = 0; i < n_row; ++i)
1581 bmap = basic_map_read_polylib_constraint(s, bmap);
1583 tok = isl_stream_next_token_on_same_line(s);
1585 isl_stream_error(s, tok, "unexpected extra token on line");
1586 isl_stream_push_token(s, tok);
1590 bmap = isl_basic_map_simplify(bmap);
1591 bmap = isl_basic_map_finalize(bmap);
1594 isl_basic_map_free(bmap);
1598 static struct isl_map *map_read_polylib(struct isl_stream *s)
1600 struct isl_token *tok;
1601 struct isl_token *tok2;
1603 struct isl_map *map;
1605 tok = isl_stream_next_token(s);
1607 isl_stream_error(s, NULL, "unexpected EOF");
1610 tok2 = isl_stream_next_token_on_same_line(s);
1611 if (tok2 && tok2->type == ISL_TOKEN_VALUE) {
1612 isl_stream_push_token(s, tok2);
1613 isl_stream_push_token(s, tok);
1614 return isl_map_from_basic_map(basic_map_read_polylib(s));
1617 isl_stream_error(s, tok2, "unexpected token");
1618 isl_stream_push_token(s, tok2);
1619 isl_stream_push_token(s, tok);
1622 n = isl_int_get_si(tok->u.v);
1623 isl_token_free(tok);
1625 isl_assert(s->ctx, n >= 1, return NULL);
1627 map = isl_map_from_basic_map(basic_map_read_polylib(s));
1629 for (i = 1; map && i < n; ++i)
1630 map = isl_map_union(map,
1631 isl_map_from_basic_map(basic_map_read_polylib(s)));
1636 static int optional_power(struct isl_stream *s)
1639 struct isl_token *tok;
1641 tok = isl_stream_next_token(s);
1644 if (tok->type != '^') {
1645 isl_stream_push_token(s, tok);
1648 isl_token_free(tok);
1649 tok = isl_stream_next_token(s);
1650 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1651 isl_stream_error(s, tok, "expecting exponent");
1653 isl_stream_push_token(s, tok);
1656 pow = isl_int_get_si(tok->u.v);
1657 isl_token_free(tok);
1661 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1662 __isl_keep isl_map *map, struct vars *v);
1664 static __isl_give isl_pw_qpolynomial *read_factor(struct isl_stream *s,
1665 __isl_keep isl_map *map, struct vars *v)
1667 isl_pw_qpolynomial *pwqp;
1668 struct isl_token *tok;
1670 tok = next_token(s);
1672 isl_stream_error(s, NULL, "unexpected EOF");
1675 if (tok->type == '(') {
1678 isl_token_free(tok);
1679 pwqp = read_term(s, map, v);
1682 if (isl_stream_eat(s, ')'))
1684 pow = optional_power(s);
1685 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1686 } else if (tok->type == ISL_TOKEN_VALUE) {
1687 struct isl_token *tok2;
1688 tok2 = isl_stream_next_token(s);
1689 isl_qpolynomial *qp;
1690 if (tok2 && tok2->type == '/') {
1691 isl_token_free(tok2);
1692 tok2 = next_token(s);
1693 if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
1694 isl_stream_error(s, tok2, "expected denominator");
1695 isl_token_free(tok);
1696 isl_token_free(tok2);
1699 qp = isl_qpolynomial_rat_cst_on_domain(isl_map_get_space(map),
1700 tok->u.v, tok2->u.v);
1701 isl_token_free(tok2);
1703 isl_stream_push_token(s, tok2);
1704 qp = isl_qpolynomial_cst_on_domain(isl_map_get_space(map),
1707 isl_token_free(tok);
1708 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1709 } else if (tok->type == ISL_TOKEN_INFTY) {
1710 isl_qpolynomial *qp;
1711 isl_token_free(tok);
1712 qp = isl_qpolynomial_infty_on_domain(isl_map_get_space(map));
1713 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1714 } else if (tok->type == ISL_TOKEN_NAN) {
1715 isl_qpolynomial *qp;
1716 isl_token_free(tok);
1717 qp = isl_qpolynomial_nan_on_domain(isl_map_get_space(map));
1718 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1719 } else if (tok->type == ISL_TOKEN_IDENT) {
1721 int pos = vars_pos(v, tok->u.s, -1);
1723 isl_qpolynomial *qp;
1725 isl_token_free(tok);
1729 vars_drop(v, v->n - n);
1730 isl_stream_error(s, tok, "unknown identifier");
1731 isl_token_free(tok);
1734 isl_token_free(tok);
1735 pow = optional_power(s);
1736 qp = isl_qpolynomial_var_pow_on_domain(isl_map_get_space(map), pos, pow);
1737 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1738 } else if (tok->type == '[') {
1742 isl_stream_push_token(s, tok);
1743 pwaff = accept_div(s, isl_map_get_space(map), v);
1744 pow = optional_power(s);
1745 pwqp = isl_pw_qpolynomial_from_pw_aff(pwaff);
1746 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1747 } else if (tok->type == '-') {
1748 isl_token_free(tok);
1749 pwqp = read_factor(s, map, v);
1750 pwqp = isl_pw_qpolynomial_neg(pwqp);
1752 isl_stream_error(s, tok, "unexpected isl_token");
1753 isl_stream_push_token(s, tok);
1757 if (isl_stream_eat_if_available(s, '*') ||
1758 isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
1759 isl_pw_qpolynomial *pwqp2;
1761 pwqp2 = read_factor(s, map, v);
1762 pwqp = isl_pw_qpolynomial_mul(pwqp, pwqp2);
1767 isl_pw_qpolynomial_free(pwqp);
1771 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1772 __isl_keep isl_map *map, struct vars *v)
1774 struct isl_token *tok;
1775 isl_pw_qpolynomial *pwqp;
1777 pwqp = read_factor(s, map, v);
1780 tok = next_token(s);
1784 if (tok->type == '+') {
1785 isl_pw_qpolynomial *pwqp2;
1787 isl_token_free(tok);
1788 pwqp2 = read_factor(s, map, v);
1789 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1790 } else if (tok->type == '-') {
1791 isl_pw_qpolynomial *pwqp2;
1793 isl_token_free(tok);
1794 pwqp2 = read_factor(s, map, v);
1795 pwqp = isl_pw_qpolynomial_sub(pwqp, pwqp2);
1796 } else if (tok->type == ISL_TOKEN_VALUE &&
1797 isl_int_is_neg(tok->u.v)) {
1798 isl_pw_qpolynomial *pwqp2;
1800 isl_stream_push_token(s, tok);
1801 pwqp2 = read_factor(s, map, v);
1802 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1804 isl_stream_push_token(s, tok);
1812 static __isl_give isl_map *read_optional_disjuncts(struct isl_stream *s,
1813 __isl_take isl_map *map, struct vars *v, int rational)
1815 struct isl_token *tok;
1817 tok = isl_stream_next_token(s);
1819 isl_stream_error(s, NULL, "unexpected EOF");
1822 if (tok->type == ':' ||
1823 (tok->type == ISL_TOKEN_OR && !strcmp(tok->u.s, "|"))) {
1824 isl_token_free(tok);
1825 map = read_disjuncts(s, v, map, rational);
1827 isl_stream_push_token(s, tok);
1835 static struct isl_obj obj_read_poly(struct isl_stream *s,
1836 __isl_take isl_map *map, struct vars *v, int n)
1838 struct isl_obj obj = { isl_obj_pw_qpolynomial, NULL };
1839 isl_pw_qpolynomial *pwqp;
1840 struct isl_set *set;
1842 pwqp = read_term(s, map, v);
1843 map = read_optional_disjuncts(s, map, v, 0);
1844 set = isl_map_range(map);
1846 pwqp = isl_pw_qpolynomial_intersect_domain(pwqp, set);
1848 vars_drop(v, v->n - n);
1854 static struct isl_obj obj_read_poly_or_fold(struct isl_stream *s,
1855 __isl_take isl_set *set, struct vars *v, int n)
1857 struct isl_obj obj = { isl_obj_pw_qpolynomial_fold, NULL };
1858 isl_pw_qpolynomial *pwqp;
1859 isl_pw_qpolynomial_fold *pwf = NULL;
1861 if (!isl_stream_eat_if_available(s, ISL_TOKEN_MAX))
1862 return obj_read_poly(s, set, v, n);
1864 if (isl_stream_eat(s, '('))
1867 pwqp = read_term(s, set, v);
1868 pwf = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max, pwqp);
1870 while (isl_stream_eat_if_available(s, ',')) {
1871 isl_pw_qpolynomial_fold *pwf_i;
1872 pwqp = read_term(s, set, v);
1873 pwf_i = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max,
1875 pwf = isl_pw_qpolynomial_fold_fold(pwf, pwf_i);
1878 if (isl_stream_eat(s, ')'))
1881 set = read_optional_disjuncts(s, set, v, 0);
1882 pwf = isl_pw_qpolynomial_fold_intersect_domain(pwf, set);
1884 vars_drop(v, v->n - n);
1890 isl_pw_qpolynomial_fold_free(pwf);
1891 obj.type = isl_obj_none;
1895 static int is_rational(struct isl_stream *s)
1897 struct isl_token *tok;
1899 tok = isl_stream_next_token(s);
1902 if (tok->type == ISL_TOKEN_RAT && isl_stream_next_token_is(s, ':')) {
1903 isl_token_free(tok);
1904 isl_stream_eat(s, ':');
1908 isl_stream_push_token(s, tok);
1913 static struct isl_obj obj_read_body(struct isl_stream *s,
1914 __isl_take isl_map *map, struct vars *v)
1916 struct isl_token *tok;
1917 struct isl_obj obj = { isl_obj_set, NULL };
1921 rational = is_rational(s);
1923 map = isl_map_set_rational(map);
1925 if (isl_stream_next_token_is(s, ':')) {
1926 obj.type = isl_obj_set;
1927 obj.v = read_optional_disjuncts(s, map, v, rational);
1931 if (!next_is_tuple(s))
1932 return obj_read_poly_or_fold(s, map, v, n);
1934 map = read_map_tuple(s, map, isl_dim_in, v, rational, 0);
1937 tok = isl_stream_next_token(s);
1940 if (tok->type == ISL_TOKEN_TO) {
1941 obj.type = isl_obj_map;
1942 isl_token_free(tok);
1943 if (!next_is_tuple(s)) {
1944 isl_set *set = isl_map_domain(map);
1945 return obj_read_poly_or_fold(s, set, v, n);
1947 map = read_map_tuple(s, map, isl_dim_out, v, rational, 0);
1951 map = isl_map_domain(map);
1952 isl_stream_push_token(s, tok);
1955 map = read_optional_disjuncts(s, map, v, rational);
1957 vars_drop(v, v->n - n);
1963 obj.type = isl_obj_none;
1967 static struct isl_obj to_union(isl_ctx *ctx, struct isl_obj obj)
1969 if (obj.type == isl_obj_map) {
1970 obj.v = isl_union_map_from_map(obj.v);
1971 obj.type = isl_obj_union_map;
1972 } else if (obj.type == isl_obj_set) {
1973 obj.v = isl_union_set_from_set(obj.v);
1974 obj.type = isl_obj_union_set;
1975 } else if (obj.type == isl_obj_pw_qpolynomial) {
1976 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
1977 obj.type = isl_obj_union_pw_qpolynomial;
1978 } else if (obj.type == isl_obj_pw_qpolynomial_fold) {
1979 obj.v = isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj.v);
1980 obj.type = isl_obj_union_pw_qpolynomial_fold;
1982 isl_assert(ctx, 0, goto error);
1985 obj.type->free(obj.v);
1986 obj.type = isl_obj_none;
1990 static struct isl_obj obj_add(struct isl_ctx *ctx,
1991 struct isl_obj obj1, struct isl_obj obj2)
1993 if (obj1.type == isl_obj_set && obj2.type == isl_obj_union_set)
1994 obj1 = to_union(ctx, obj1);
1995 if (obj1.type == isl_obj_union_set && obj2.type == isl_obj_set)
1996 obj2 = to_union(ctx, obj2);
1997 if (obj1.type == isl_obj_map && obj2.type == isl_obj_union_map)
1998 obj1 = to_union(ctx, obj1);
1999 if (obj1.type == isl_obj_union_map && obj2.type == isl_obj_map)
2000 obj2 = to_union(ctx, obj2);
2001 if (obj1.type == isl_obj_pw_qpolynomial &&
2002 obj2.type == isl_obj_union_pw_qpolynomial)
2003 obj1 = to_union(ctx, obj1);
2004 if (obj1.type == isl_obj_union_pw_qpolynomial &&
2005 obj2.type == isl_obj_pw_qpolynomial)
2006 obj2 = to_union(ctx, obj2);
2007 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
2008 obj2.type == isl_obj_union_pw_qpolynomial_fold)
2009 obj1 = to_union(ctx, obj1);
2010 if (obj1.type == isl_obj_union_pw_qpolynomial_fold &&
2011 obj2.type == isl_obj_pw_qpolynomial_fold)
2012 obj2 = to_union(ctx, obj2);
2013 isl_assert(ctx, obj1.type == obj2.type, goto error);
2014 if (obj1.type == isl_obj_map && !isl_map_has_equal_space(obj1.v, obj2.v)) {
2015 obj1 = to_union(ctx, obj1);
2016 obj2 = to_union(ctx, obj2);
2018 if (obj1.type == isl_obj_set && !isl_set_has_equal_space(obj1.v, obj2.v)) {
2019 obj1 = to_union(ctx, obj1);
2020 obj2 = to_union(ctx, obj2);
2022 if (obj1.type == isl_obj_pw_qpolynomial &&
2023 !isl_pw_qpolynomial_has_equal_space(obj1.v, obj2.v)) {
2024 obj1 = to_union(ctx, obj1);
2025 obj2 = to_union(ctx, obj2);
2027 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
2028 !isl_pw_qpolynomial_fold_has_equal_space(obj1.v, obj2.v)) {
2029 obj1 = to_union(ctx, obj1);
2030 obj2 = to_union(ctx, obj2);
2032 obj1.v = obj1.type->add(obj1.v, obj2.v);
2035 obj1.type->free(obj1.v);
2036 obj2.type->free(obj2.v);
2037 obj1.type = isl_obj_none;
2042 static struct isl_obj obj_read(struct isl_stream *s)
2044 isl_map *map = NULL;
2045 struct isl_token *tok;
2046 struct vars *v = NULL;
2047 struct isl_obj obj = { isl_obj_set, NULL };
2049 tok = next_token(s);
2051 isl_stream_error(s, NULL, "unexpected EOF");
2054 if (tok->type == ISL_TOKEN_VALUE) {
2055 struct isl_token *tok2;
2056 struct isl_map *map;
2058 tok2 = isl_stream_next_token(s);
2059 if (!tok2 || tok2->type != ISL_TOKEN_VALUE ||
2060 isl_int_is_neg(tok2->u.v)) {
2062 isl_stream_push_token(s, tok2);
2063 obj.type = isl_obj_int;
2064 obj.v = isl_int_obj_alloc(s->ctx, tok->u.v);
2065 isl_token_free(tok);
2068 isl_stream_push_token(s, tok2);
2069 isl_stream_push_token(s, tok);
2070 map = map_read_polylib(s);
2073 if (isl_map_may_be_set(map))
2074 obj.v = isl_map_range(map);
2076 obj.type = isl_obj_map;
2081 v = vars_new(s->ctx);
2083 isl_stream_push_token(s, tok);
2086 map = isl_map_universe(isl_space_params_alloc(s->ctx, 0));
2087 if (tok->type == '[') {
2088 isl_stream_push_token(s, tok);
2089 map = read_map_tuple(s, map, isl_dim_param, v, 0, 0);
2092 tok = isl_stream_next_token(s);
2093 if (!tok || tok->type != ISL_TOKEN_TO) {
2094 isl_stream_error(s, tok, "expecting '->'");
2096 isl_stream_push_token(s, tok);
2099 isl_token_free(tok);
2100 tok = isl_stream_next_token(s);
2102 if (!tok || tok->type != '{') {
2103 isl_stream_error(s, tok, "expecting '{'");
2105 isl_stream_push_token(s, tok);
2108 isl_token_free(tok);
2110 tok = isl_stream_next_token(s);
2113 else if (tok->type == ISL_TOKEN_IDENT && !strcmp(tok->u.s, "Sym")) {
2114 isl_token_free(tok);
2115 if (isl_stream_eat(s, '='))
2117 map = read_map_tuple(s, map, isl_dim_param, v, 0, 1);
2120 } else if (tok->type == '}') {
2121 obj.type = isl_obj_union_set;
2122 obj.v = isl_union_set_empty(isl_map_get_space(map));
2123 isl_token_free(tok);
2126 isl_stream_push_token(s, tok);
2131 o = obj_read_body(s, isl_map_copy(map), v);
2132 if (o.type == isl_obj_none || !o.v)
2137 obj = obj_add(s->ctx, obj, o);
2138 if (obj.type == isl_obj_none || !obj.v)
2141 tok = isl_stream_next_token(s);
2142 if (!tok || tok->type != ';')
2144 isl_token_free(tok);
2145 if (isl_stream_next_token_is(s, '}')) {
2146 tok = isl_stream_next_token(s);
2151 if (tok && tok->type == '}') {
2152 isl_token_free(tok);
2154 isl_stream_error(s, tok, "unexpected isl_token");
2156 isl_token_free(tok);
2166 obj.type->free(obj.v);
2173 struct isl_obj isl_stream_read_obj(struct isl_stream *s)
2178 __isl_give isl_map *isl_stream_read_map(struct isl_stream *s)
2184 isl_assert(s->ctx, obj.type == isl_obj_map ||
2185 obj.type == isl_obj_set, goto error);
2187 if (obj.type == isl_obj_set)
2188 obj.v = isl_map_from_range(obj.v);
2192 obj.type->free(obj.v);
2196 __isl_give isl_set *isl_stream_read_set(struct isl_stream *s)
2202 if (obj.type == isl_obj_map && isl_map_may_be_set(obj.v)) {
2203 obj.v = isl_map_range(obj.v);
2204 obj.type = isl_obj_set;
2206 isl_assert(s->ctx, obj.type == isl_obj_set, goto error);
2211 obj.type->free(obj.v);
2215 __isl_give isl_union_map *isl_stream_read_union_map(struct isl_stream *s)
2220 if (obj.type == isl_obj_map) {
2221 obj.type = isl_obj_union_map;
2222 obj.v = isl_union_map_from_map(obj.v);
2224 if (obj.type == isl_obj_set) {
2225 obj.type = isl_obj_union_set;
2226 obj.v = isl_union_set_from_set(obj.v);
2228 if (obj.v && obj.type == isl_obj_union_set &&
2229 isl_union_set_is_empty(obj.v))
2230 obj.type = isl_obj_union_map;
2231 if (obj.v && obj.type != isl_obj_union_map)
2232 isl_die(s->ctx, isl_error_invalid, "invalid input", goto error);
2236 obj.type->free(obj.v);
2240 __isl_give isl_union_set *isl_stream_read_union_set(struct isl_stream *s)
2245 if (obj.type == isl_obj_set) {
2246 obj.type = isl_obj_union_set;
2247 obj.v = isl_union_set_from_set(obj.v);
2250 isl_assert(s->ctx, obj.type == isl_obj_union_set, goto error);
2254 obj.type->free(obj.v);
2258 static __isl_give isl_basic_map *basic_map_read(struct isl_stream *s)
2261 struct isl_map *map;
2262 struct isl_basic_map *bmap;
2269 isl_assert(map->ctx, map->n <= 1, goto error);
2272 bmap = isl_basic_map_empty_like_map(map);
2274 bmap = isl_basic_map_copy(map->p[0]);
2284 static __isl_give isl_basic_set *basic_set_read(struct isl_stream *s)
2286 isl_basic_map *bmap;
2287 bmap = basic_map_read(s);
2290 if (!isl_basic_map_may_be_set(bmap))
2291 isl_die(s->ctx, isl_error_invalid,
2292 "input is not a set", goto error);
2293 return isl_basic_map_range(bmap);
2295 isl_basic_map_free(bmap);
2299 __isl_give isl_basic_map *isl_basic_map_read_from_file(isl_ctx *ctx,
2302 struct isl_basic_map *bmap;
2303 struct isl_stream *s = isl_stream_new_file(ctx, input);
2306 bmap = basic_map_read(s);
2311 __isl_give isl_basic_set *isl_basic_set_read_from_file(isl_ctx *ctx,
2314 isl_basic_set *bset;
2315 struct isl_stream *s = isl_stream_new_file(ctx, input);
2318 bset = basic_set_read(s);
2323 struct isl_basic_map *isl_basic_map_read_from_str(struct isl_ctx *ctx,
2326 struct isl_basic_map *bmap;
2327 struct isl_stream *s = isl_stream_new_str(ctx, str);
2330 bmap = basic_map_read(s);
2335 struct isl_basic_set *isl_basic_set_read_from_str(struct isl_ctx *ctx,
2338 isl_basic_set *bset;
2339 struct isl_stream *s = isl_stream_new_str(ctx, str);
2342 bset = basic_set_read(s);
2347 __isl_give isl_map *isl_map_read_from_file(struct isl_ctx *ctx,
2350 struct isl_map *map;
2351 struct isl_stream *s = isl_stream_new_file(ctx, input);
2354 map = isl_stream_read_map(s);
2359 __isl_give isl_map *isl_map_read_from_str(struct isl_ctx *ctx,
2362 struct isl_map *map;
2363 struct isl_stream *s = isl_stream_new_str(ctx, str);
2366 map = isl_stream_read_map(s);
2371 __isl_give isl_set *isl_set_read_from_file(struct isl_ctx *ctx,
2375 struct isl_stream *s = isl_stream_new_file(ctx, input);
2378 set = isl_stream_read_set(s);
2383 struct isl_set *isl_set_read_from_str(struct isl_ctx *ctx,
2387 struct isl_stream *s = isl_stream_new_str(ctx, str);
2390 set = isl_stream_read_set(s);
2395 __isl_give isl_union_map *isl_union_map_read_from_file(isl_ctx *ctx,
2398 isl_union_map *umap;
2399 struct isl_stream *s = isl_stream_new_file(ctx, input);
2402 umap = isl_stream_read_union_map(s);
2407 __isl_give isl_union_map *isl_union_map_read_from_str(struct isl_ctx *ctx,
2410 isl_union_map *umap;
2411 struct isl_stream *s = isl_stream_new_str(ctx, str);
2414 umap = isl_stream_read_union_map(s);
2419 __isl_give isl_union_set *isl_union_set_read_from_file(isl_ctx *ctx,
2422 isl_union_set *uset;
2423 struct isl_stream *s = isl_stream_new_file(ctx, input);
2426 uset = isl_stream_read_union_set(s);
2431 __isl_give isl_union_set *isl_union_set_read_from_str(struct isl_ctx *ctx,
2434 isl_union_set *uset;
2435 struct isl_stream *s = isl_stream_new_str(ctx, str);
2438 uset = isl_stream_read_union_set(s);
2443 static __isl_give isl_vec *isl_vec_read_polylib(struct isl_stream *s)
2445 struct isl_vec *vec = NULL;
2446 struct isl_token *tok;
2450 tok = isl_stream_next_token(s);
2451 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2452 isl_stream_error(s, tok, "expecting vector length");
2456 size = isl_int_get_si(tok->u.v);
2457 isl_token_free(tok);
2459 vec = isl_vec_alloc(s->ctx, size);
2461 for (j = 0; j < size; ++j) {
2462 tok = isl_stream_next_token(s);
2463 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2464 isl_stream_error(s, tok, "expecting constant value");
2467 isl_int_set(vec->el[j], tok->u.v);
2468 isl_token_free(tok);
2473 isl_token_free(tok);
2478 static __isl_give isl_vec *vec_read(struct isl_stream *s)
2480 return isl_vec_read_polylib(s);
2483 __isl_give isl_vec *isl_vec_read_from_file(isl_ctx *ctx, FILE *input)
2486 struct isl_stream *s = isl_stream_new_file(ctx, input);
2494 __isl_give isl_pw_qpolynomial *isl_stream_read_pw_qpolynomial(
2495 struct isl_stream *s)
2501 isl_assert(s->ctx, obj.type == isl_obj_pw_qpolynomial,
2506 obj.type->free(obj.v);
2510 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_str(isl_ctx *ctx,
2513 isl_pw_qpolynomial *pwqp;
2514 struct isl_stream *s = isl_stream_new_str(ctx, str);
2517 pwqp = isl_stream_read_pw_qpolynomial(s);
2522 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_file(isl_ctx *ctx,
2525 isl_pw_qpolynomial *pwqp;
2526 struct isl_stream *s = isl_stream_new_file(ctx, input);
2529 pwqp = isl_stream_read_pw_qpolynomial(s);
2534 /* Is the next token an identifer not in "v"?
2536 static int next_is_fresh_ident(struct isl_stream *s, struct vars *v)
2540 struct isl_token *tok;
2542 tok = isl_stream_next_token(s);
2545 fresh = tok->type == ISL_TOKEN_IDENT && vars_pos(v, tok->u.s, -1) >= n;
2546 isl_stream_push_token(s, tok);
2548 vars_drop(v, v->n - n);
2553 /* First read the domain of the affine expression, which may be
2554 * a parameter space or a set.
2555 * The tricky part is that we don't know if the domain is a set or not,
2556 * so when we are trying to read the domain, we may actually be reading
2557 * the affine expression itself (defined on a parameter domains)
2558 * If the tuple we are reading is named, we assume it's the domain.
2559 * Also, if inside the tuple, the first thing we find is a nested tuple
2560 * or a new identifier, we again assume it's the domain.
2561 * Otherwise, we assume we are reading an affine expression.
2563 static __isl_give isl_set *read_aff_domain(struct isl_stream *s,
2564 __isl_take isl_set *dom, struct vars *v)
2566 struct isl_token *tok;
2568 tok = isl_stream_next_token(s);
2569 if (tok && (tok->type == ISL_TOKEN_IDENT || tok->is_keyword)) {
2570 isl_stream_push_token(s, tok);
2571 return read_map_tuple(s, dom, isl_dim_set, v, 1, 0);
2573 if (!tok || tok->type != '[') {
2574 isl_stream_error(s, tok, "expecting '['");
2577 if (next_is_tuple(s) || next_is_fresh_ident(s, v)) {
2578 isl_stream_push_token(s, tok);
2579 dom = read_map_tuple(s, dom, isl_dim_set, v, 1, 0);
2581 isl_stream_push_token(s, tok);
2586 isl_stream_push_token(s, tok);
2591 /* Read an affine expression from "s".
2593 __isl_give isl_aff *isl_stream_read_aff(struct isl_stream *s)
2598 ma = isl_stream_read_multi_aff(s);
2601 if (isl_multi_aff_dim(ma, isl_dim_out) != 1)
2602 isl_die(s->ctx, isl_error_invalid,
2603 "expecting single affine expression",
2606 aff = isl_multi_aff_get_aff(ma, 0);
2607 isl_multi_aff_free(ma);
2610 isl_multi_aff_free(ma);
2614 /* Read a piecewise affine expression from "s" with domain (space) "dom".
2616 static __isl_give isl_pw_aff *read_pw_aff_with_dom(struct isl_stream *s,
2617 __isl_take isl_set *dom, struct vars *v)
2619 isl_pw_aff *pwaff = NULL;
2621 if (!isl_set_is_params(dom) && isl_stream_eat(s, ISL_TOKEN_TO))
2624 if (isl_stream_eat(s, '['))
2627 pwaff = accept_affine(s, isl_set_get_space(dom), v);
2629 if (isl_stream_eat(s, ']'))
2632 dom = read_optional_disjuncts(s, dom, v, 0);
2633 pwaff = isl_pw_aff_intersect_domain(pwaff, dom);
2638 isl_pw_aff_free(pwaff);
2642 __isl_give isl_pw_aff *isl_stream_read_pw_aff(struct isl_stream *s)
2645 isl_set *dom = NULL;
2647 isl_pw_aff *pa = NULL;
2650 v = vars_new(s->ctx);
2654 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2655 if (next_is_tuple(s)) {
2656 dom = read_map_tuple(s, dom, isl_dim_param, v, 1, 0);
2657 if (isl_stream_eat(s, ISL_TOKEN_TO))
2660 if (isl_stream_eat(s, '{'))
2664 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2665 pa = read_pw_aff_with_dom(s, aff_dom, v);
2666 vars_drop(v, v->n - n);
2668 while (isl_stream_eat_if_available(s, ';')) {
2672 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2673 pa_i = read_pw_aff_with_dom(s, aff_dom, v);
2674 vars_drop(v, v->n - n);
2676 pa = isl_pw_aff_union_add(pa, pa_i);
2679 if (isl_stream_eat(s, '}'))
2688 isl_pw_aff_free(pa);
2692 __isl_give isl_aff *isl_aff_read_from_str(isl_ctx *ctx, const char *str)
2695 struct isl_stream *s = isl_stream_new_str(ctx, str);
2698 aff = isl_stream_read_aff(s);
2703 __isl_give isl_pw_aff *isl_pw_aff_read_from_str(isl_ctx *ctx, const char *str)
2706 struct isl_stream *s = isl_stream_new_str(ctx, str);
2709 pa = isl_stream_read_pw_aff(s);
2714 /* Read an isl_pw_multi_aff from "s".
2715 * We currently read a generic object and if it turns out to be a set or
2716 * a map, we convert that to an isl_pw_multi_aff.
2717 * It would be more efficient if we were to construct the isl_pw_multi_aff
2720 __isl_give isl_pw_multi_aff *isl_stream_read_pw_multi_aff(struct isl_stream *s)
2728 if (obj.type == isl_obj_map)
2729 return isl_pw_multi_aff_from_map(obj.v);
2730 if (obj.type == isl_obj_set)
2731 return isl_pw_multi_aff_from_set(obj.v);
2733 obj.type->free(obj.v);
2734 isl_die(s->ctx, isl_error_invalid, "unexpected object type",
2738 __isl_give isl_pw_multi_aff *isl_pw_multi_aff_read_from_str(isl_ctx *ctx,
2741 isl_pw_multi_aff *pma;
2742 struct isl_stream *s = isl_stream_new_str(ctx, str);
2745 pma = isl_stream_read_pw_multi_aff(s);
2750 /* Assuming "pa" represents a single affine expression defined on a universe
2751 * domain, extract this affine expression.
2753 static __isl_give isl_aff *aff_from_pw_aff(__isl_take isl_pw_aff *pa)
2760 isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
2761 "expecting single affine expression",
2763 if (!isl_set_plain_is_universe(pa->p[0].set))
2764 isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
2765 "expecting universe domain",
2768 aff = isl_aff_copy(pa->p[0].aff);
2769 isl_pw_aff_free(pa);
2772 isl_pw_aff_free(pa);
2776 /* Read a multi-affine expression from "s".
2777 * If the multi-affine expression has a domain, then then tuple
2778 * representing this domain cannot involve any affine expressions.
2779 * The tuple representing the actual expressions needs to consist
2780 * of only affine expressions. Moreover, these expressions can
2781 * only depend on parameters and input dimensions and not on other
2782 * output dimensions.
2784 __isl_give isl_multi_aff *isl_stream_read_multi_aff(struct isl_stream *s)
2787 isl_set *dom = NULL;
2788 isl_multi_pw_aff *tuple = NULL;
2790 isl_space *space, *dom_space;
2791 isl_multi_aff *ma = NULL;
2793 v = vars_new(s->ctx);
2797 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2798 if (next_is_tuple(s)) {
2799 dom = read_map_tuple(s, dom, isl_dim_param, v, 1, 0);
2800 if (isl_stream_eat(s, ISL_TOKEN_TO))
2803 if (!isl_set_plain_is_universe(dom))
2804 isl_die(s->ctx, isl_error_invalid,
2805 "expecting universe parameter domain", goto error);
2806 if (isl_stream_eat(s, '{'))
2809 tuple = read_tuple(s, v, 0, 0);
2812 if (isl_stream_eat_if_available(s, ISL_TOKEN_TO)) {
2817 has_expr = tuple_has_expr(tuple);
2821 isl_die(s->ctx, isl_error_invalid,
2822 "expecting universe domain", goto error);
2823 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
2824 set = isl_set_universe(space);
2825 dom = isl_set_intersect_params(set, dom);
2826 isl_multi_pw_aff_free(tuple);
2827 tuple = read_tuple(s, v, 0, 0);
2832 if (isl_stream_eat(s, '}'))
2835 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
2836 dim = isl_set_dim(dom, isl_dim_all);
2837 dom_space = isl_set_get_space(dom);
2838 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
2839 space = isl_space_align_params(space, isl_space_copy(dom_space));
2840 if (!isl_space_is_params(dom_space))
2841 space = isl_space_map_from_domain_and_range(
2842 isl_space_copy(dom_space), space);
2843 isl_space_free(dom_space);
2844 ma = isl_multi_aff_alloc(space);
2846 for (i = 0; i < n; ++i) {
2849 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
2850 aff = aff_from_pw_aff(pa);
2853 if (isl_aff_involves_dims(aff, isl_dim_in, dim, i + 1)) {
2855 isl_die(s->ctx, isl_error_invalid,
2856 "not an affine expression", goto error);
2858 aff = isl_aff_drop_dims(aff, isl_dim_in, dim, n);
2859 space = isl_multi_aff_get_domain_space(ma);
2860 aff = isl_aff_reset_domain_space(aff, space);
2861 ma = isl_multi_aff_set_aff(ma, i, aff);
2864 isl_multi_pw_aff_free(tuple);
2869 isl_multi_pw_aff_free(tuple);
2872 isl_multi_aff_free(ma);
2876 __isl_give isl_multi_aff *isl_multi_aff_read_from_str(isl_ctx *ctx,
2879 isl_multi_aff *maff;
2880 struct isl_stream *s = isl_stream_new_str(ctx, str);
2883 maff = isl_stream_read_multi_aff(s);
2888 __isl_give isl_union_pw_qpolynomial *isl_stream_read_union_pw_qpolynomial(
2889 struct isl_stream *s)
2894 if (obj.type == isl_obj_pw_qpolynomial) {
2895 obj.type = isl_obj_union_pw_qpolynomial;
2896 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
2899 isl_assert(s->ctx, obj.type == isl_obj_union_pw_qpolynomial,
2904 obj.type->free(obj.v);
2908 __isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_read_from_str(
2909 isl_ctx *ctx, const char *str)
2911 isl_union_pw_qpolynomial *upwqp;
2912 struct isl_stream *s = isl_stream_new_str(ctx, str);
2915 upwqp = isl_stream_read_union_pw_qpolynomial(s);