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);
945 if (tok->type == '*') {
946 if (vars_add_anon(v) < 0)
949 } else if (new_name) {
950 res = tuple_set_dim_name(res, i, v->v->name);
952 if (isl_stream_eat_if_available(s, '='))
953 res = read_tuple_var_def(s, res, i, v,
956 isl_stream_push_token(s, tok);
958 if (vars_add_anon(v) < 0)
960 res = read_tuple_var_def(s, res, i, v, rational);
963 tok = isl_stream_next_token(s);
964 if (!comma && tok && tok->type == ']' &&
965 isl_stream_next_token_is(s, '[')) {
967 tok = isl_stream_next_token(s);
968 } else if (!tok || tok->type != ',')
975 isl_stream_push_token(s, tok);
980 return isl_multi_pw_aff_free(res);
983 /* Read a tuple and represent it as an isl_multi_pw_aff. See tuple_alloc.
985 static __isl_give isl_multi_pw_aff *read_tuple(struct isl_stream *s,
986 struct vars *v, int rational, int comma)
988 struct isl_token *tok;
990 isl_multi_pw_aff *res = NULL;
992 tok = isl_stream_next_token(s);
995 if (tok->type == ISL_TOKEN_IDENT || tok->is_keyword) {
996 name = strdup(tok->u.s);
1001 isl_stream_push_token(s, tok);
1002 if (isl_stream_eat(s, '['))
1004 if (next_is_tuple(s)) {
1005 isl_multi_pw_aff *out;
1007 res = read_tuple(s, v, rational, comma);
1008 if (isl_stream_eat(s, ISL_TOKEN_TO))
1010 out = read_tuple(s, v, rational, comma);
1011 n = isl_multi_pw_aff_dim(out, isl_dim_out);
1012 res = isl_multi_pw_aff_add_dims(res, isl_dim_in, n);
1013 res = isl_multi_pw_aff_range_product(res, out);
1015 res = read_tuple_var_list(s, v, rational, comma);
1016 if (isl_stream_eat(s, ']'))
1020 res = isl_multi_pw_aff_set_tuple_name(res, isl_dim_out, name);
1027 return isl_multi_pw_aff_free(res);
1030 /* Read a tuple from "s" and add it to "map".
1031 * The tuple is initially represented as an isl_multi_pw_aff.
1032 * We first create the appropriate space in "map" based on the range
1033 * space of this isl_multi_pw_aff. Then, we add equalities based
1034 * on the affine expressions. These live in an anonymous space,
1035 * however, so we first need to reset the space to that of "map".
1037 static __isl_give isl_map *read_map_tuple(struct isl_stream *s,
1038 __isl_take isl_map *map, enum isl_dim_type type, struct vars *v,
1039 int rational, int comma)
1042 isl_multi_pw_aff *tuple;
1043 isl_space *space = NULL;
1045 tuple = read_tuple(s, v, rational, comma);
1049 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
1050 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
1054 if (type == isl_dim_param) {
1055 if (isl_space_has_tuple_name(space, isl_dim_set) ||
1056 isl_space_is_wrapping(space)) {
1057 isl_die(s->ctx, isl_error_invalid,
1058 "parameter tuples cannot be named or nested",
1061 map = isl_map_add_dims(map, type, n);
1062 for (i = 0; i < n; ++i) {
1064 if (!isl_space_has_dim_name(space, isl_dim_set, i))
1065 isl_die(s->ctx, isl_error_invalid,
1066 "parameters must be named",
1068 id = isl_space_get_dim_id(space, isl_dim_set, i);
1069 map = isl_map_set_dim_id(map, isl_dim_param, i, id);
1071 } else if (type == isl_dim_in) {
1074 set = isl_set_universe(isl_space_copy(space));
1076 set = isl_set_set_rational(set);
1077 set = isl_set_intersect_params(set, isl_map_params(map));
1078 map = isl_map_from_domain(set);
1082 set = isl_set_universe(isl_space_copy(space));
1084 set = isl_set_set_rational(set);
1085 map = isl_map_from_domain_and_range(isl_map_domain(map), set);
1088 for (i = 0; i < n; ++i) {
1095 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
1096 space = isl_pw_aff_get_domain_space(pa);
1097 aff = isl_aff_zero_on_domain(isl_local_space_from_space(space));
1098 aff = isl_aff_add_coefficient_si(aff,
1099 isl_dim_in, v->n - n + i, -1);
1100 pa = isl_pw_aff_add(pa, isl_pw_aff_from_aff(aff));
1102 pa = isl_pw_aff_set_rational(pa);
1103 set = isl_pw_aff_zero_set(pa);
1104 map_i = isl_map_from_range(set);
1105 map_i = isl_map_reset_space(map_i, isl_map_get_space(map));
1106 map = isl_map_intersect(map, map_i);
1109 isl_space_free(space);
1110 isl_multi_pw_aff_free(tuple);
1113 isl_space_free(space);
1114 isl_multi_pw_aff_free(tuple);
1119 static __isl_give isl_set *construct_constraints(
1120 __isl_take isl_set *set, int type,
1121 __isl_keep isl_pw_aff_list *left, __isl_keep isl_pw_aff_list *right,
1126 left = isl_pw_aff_list_copy(left);
1127 right = isl_pw_aff_list_copy(right);
1129 left = isl_pw_aff_list_set_rational(left);
1130 right = isl_pw_aff_list_set_rational(right);
1132 if (type == ISL_TOKEN_LE)
1133 cond = isl_pw_aff_list_le_set(left, right);
1134 else if (type == ISL_TOKEN_GE)
1135 cond = isl_pw_aff_list_ge_set(left, right);
1136 else if (type == ISL_TOKEN_LT)
1137 cond = isl_pw_aff_list_lt_set(left, right);
1138 else if (type == ISL_TOKEN_GT)
1139 cond = isl_pw_aff_list_gt_set(left, right);
1140 else if (type == ISL_TOKEN_NE)
1141 cond = isl_pw_aff_list_ne_set(left, right);
1143 cond = isl_pw_aff_list_eq_set(left, right);
1145 return isl_set_intersect(set, cond);
1148 static __isl_give isl_map *add_constraint(struct isl_stream *s,
1149 struct vars *v, __isl_take isl_map *map, int rational)
1151 struct isl_token *tok = NULL;
1152 isl_pw_aff_list *list1 = NULL, *list2 = NULL;
1155 set = isl_map_wrap(map);
1156 list1 = accept_affine_list(s, isl_set_get_space(set), v);
1159 tok = isl_stream_next_token(s);
1160 if (!is_comparator(tok)) {
1161 isl_stream_error(s, tok, "missing operator");
1163 isl_stream_push_token(s, tok);
1168 list2 = accept_affine_list(s, isl_set_get_space(set), v);
1172 set = construct_constraints(set, tok->type, list1, list2,
1174 isl_token_free(tok);
1175 isl_pw_aff_list_free(list1);
1178 tok = isl_stream_next_token(s);
1179 if (!is_comparator(tok)) {
1181 isl_stream_push_token(s, tok);
1185 isl_pw_aff_list_free(list1);
1187 return isl_set_unwrap(set);
1190 isl_token_free(tok);
1191 isl_pw_aff_list_free(list1);
1192 isl_pw_aff_list_free(list2);
1197 static __isl_give isl_map *read_exists(struct isl_stream *s,
1198 struct vars *v, __isl_take isl_map *map, int rational)
1201 int seen_paren = isl_stream_eat_if_available(s, '(');
1203 map = isl_map_from_domain(isl_map_wrap(map));
1204 map = read_defined_var_list(s, v, map, rational);
1206 if (isl_stream_eat(s, ':'))
1209 map = read_disjuncts(s, v, map, rational);
1210 map = isl_set_unwrap(isl_map_domain(map));
1212 vars_drop(v, v->n - n);
1213 if (seen_paren && isl_stream_eat(s, ')'))
1222 /* Parse an expression between parentheses and push the result
1223 * back on the stream.
1225 * The parsed expression may be either an affine expression
1226 * or a condition. The first type is pushed onto the stream
1227 * as an isl_pw_aff, while the second is pushed as an isl_map.
1229 * If the initial token indicates the start of a condition,
1230 * we parse it as such.
1231 * Otherwise, we first parse an affine expression and push
1232 * that onto the stream. If the affine expression covers the
1233 * entire expression between parentheses, we return.
1234 * Otherwise, we assume that the affine expression is the
1235 * start of a condition and continue parsing.
1237 static int resolve_paren_expr(struct isl_stream *s,
1238 struct vars *v, __isl_take isl_map *map, int rational)
1240 struct isl_token *tok, *tok2;
1244 tok = isl_stream_next_token(s);
1245 if (!tok || tok->type != '(')
1248 if (isl_stream_next_token_is(s, '('))
1249 if (resolve_paren_expr(s, v, isl_map_copy(map), rational))
1252 if (isl_stream_next_token_is(s, ISL_TOKEN_EXISTS) ||
1253 isl_stream_next_token_is(s, ISL_TOKEN_NOT) ||
1254 isl_stream_next_token_is(s, ISL_TOKEN_TRUE) ||
1255 isl_stream_next_token_is(s, ISL_TOKEN_FALSE) ||
1256 isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1257 map = read_disjuncts(s, v, map, rational);
1258 if (isl_stream_eat(s, ')'))
1260 tok->type = ISL_TOKEN_MAP;
1262 isl_stream_push_token(s, tok);
1266 tok2 = isl_stream_next_token(s);
1271 isl_stream_push_token(s, tok2);
1273 pwaff = accept_affine(s, isl_space_wrap(isl_map_get_space(map)), v);
1277 tok2 = isl_token_new(s->ctx, line, col, 0);
1280 tok2->type = ISL_TOKEN_AFF;
1281 tok2->u.pwaff = pwaff;
1283 if (isl_stream_eat_if_available(s, ')')) {
1284 isl_stream_push_token(s, tok2);
1285 isl_token_free(tok);
1290 isl_stream_push_token(s, tok2);
1292 map = read_disjuncts(s, v, map, rational);
1293 if (isl_stream_eat(s, ')'))
1296 tok->type = ISL_TOKEN_MAP;
1298 isl_stream_push_token(s, tok);
1302 isl_pw_aff_free(pwaff);
1304 isl_token_free(tok);
1309 static __isl_give isl_map *read_conjunct(struct isl_stream *s,
1310 struct vars *v, __isl_take isl_map *map, int rational)
1312 if (isl_stream_next_token_is(s, '('))
1313 if (resolve_paren_expr(s, v, isl_map_copy(map), rational))
1316 if (isl_stream_next_token_is(s, ISL_TOKEN_MAP)) {
1317 struct isl_token *tok;
1318 tok = isl_stream_next_token(s);
1322 map = isl_map_copy(tok->u.map);
1323 isl_token_free(tok);
1327 if (isl_stream_eat_if_available(s, ISL_TOKEN_EXISTS))
1328 return read_exists(s, v, map, rational);
1330 if (isl_stream_eat_if_available(s, ISL_TOKEN_TRUE))
1333 if (isl_stream_eat_if_available(s, ISL_TOKEN_FALSE)) {
1334 isl_space *dim = isl_map_get_space(map);
1336 return isl_map_empty(dim);
1339 return add_constraint(s, v, map, rational);
1345 static __isl_give isl_map *read_conjuncts(struct isl_stream *s,
1346 struct vars *v, __isl_take isl_map *map, int rational)
1351 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1352 res = read_conjunct(s, v, isl_map_copy(map), rational);
1354 res = isl_map_subtract(isl_map_copy(map), res);
1356 while (res && isl_stream_eat_if_available(s, ISL_TOKEN_AND)) {
1359 negate = isl_stream_eat_if_available(s, ISL_TOKEN_NOT);
1360 res_i = read_conjunct(s, v, isl_map_copy(map), rational);
1362 res = isl_map_subtract(res, res_i);
1364 res = isl_map_intersect(res, res_i);
1371 static struct isl_map *read_disjuncts(struct isl_stream *s,
1372 struct vars *v, __isl_take isl_map *map, int rational)
1376 if (isl_stream_next_token_is(s, '}')) {
1377 isl_space *dim = isl_map_get_space(map);
1379 return isl_map_universe(dim);
1382 res = read_conjuncts(s, v, isl_map_copy(map), rational);
1383 while (isl_stream_eat_if_available(s, ISL_TOKEN_OR)) {
1386 res_i = read_conjuncts(s, v, isl_map_copy(map), rational);
1387 res = isl_map_union(res, res_i);
1394 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map *bmap, int pos)
1396 if (pos < isl_basic_map_dim(bmap, isl_dim_out))
1397 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1398 isl_basic_map_dim(bmap, isl_dim_in) + pos;
1399 pos -= isl_basic_map_dim(bmap, isl_dim_out);
1401 if (pos < isl_basic_map_dim(bmap, isl_dim_in))
1402 return 1 + isl_basic_map_dim(bmap, isl_dim_param) + pos;
1403 pos -= isl_basic_map_dim(bmap, isl_dim_in);
1405 if (pos < isl_basic_map_dim(bmap, isl_dim_div))
1406 return 1 + isl_basic_map_dim(bmap, isl_dim_param) +
1407 isl_basic_map_dim(bmap, isl_dim_in) +
1408 isl_basic_map_dim(bmap, isl_dim_out) + pos;
1409 pos -= isl_basic_map_dim(bmap, isl_dim_div);
1411 if (pos < isl_basic_map_dim(bmap, isl_dim_param))
1417 static __isl_give isl_basic_map *basic_map_read_polylib_constraint(
1418 struct isl_stream *s, __isl_take isl_basic_map *bmap)
1421 struct isl_token *tok;
1431 nparam = isl_basic_map_dim(bmap, isl_dim_param);
1432 dim = isl_basic_map_dim(bmap, isl_dim_out);
1434 tok = isl_stream_next_token(s);
1435 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1436 isl_stream_error(s, tok, "expecting coefficient");
1438 isl_stream_push_token(s, tok);
1441 if (!tok->on_new_line) {
1442 isl_stream_error(s, tok, "coefficient should appear on new line");
1443 isl_stream_push_token(s, tok);
1447 type = isl_int_get_si(tok->u.v);
1448 isl_token_free(tok);
1450 isl_assert(s->ctx, type == 0 || type == 1, goto error);
1452 k = isl_basic_map_alloc_equality(bmap);
1455 k = isl_basic_map_alloc_inequality(bmap);
1461 for (j = 0; j < 1 + isl_basic_map_total_dim(bmap); ++j) {
1463 tok = isl_stream_next_token(s);
1464 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1465 isl_stream_error(s, tok, "expecting coefficient");
1467 isl_stream_push_token(s, tok);
1470 if (tok->on_new_line) {
1471 isl_stream_error(s, tok,
1472 "coefficient should not appear on new line");
1473 isl_stream_push_token(s, tok);
1476 pos = polylib_pos_to_isl_pos(bmap, j);
1477 isl_int_set(c[pos], tok->u.v);
1478 isl_token_free(tok);
1483 isl_basic_map_free(bmap);
1487 static __isl_give isl_basic_map *basic_map_read_polylib(struct isl_stream *s)
1490 struct isl_token *tok;
1491 struct isl_token *tok2;
1494 unsigned in = 0, out, local = 0;
1495 struct isl_basic_map *bmap = NULL;
1498 tok = isl_stream_next_token(s);
1500 isl_stream_error(s, NULL, "unexpected EOF");
1503 tok2 = isl_stream_next_token(s);
1505 isl_token_free(tok);
1506 isl_stream_error(s, NULL, "unexpected EOF");
1509 if (tok->type != ISL_TOKEN_VALUE || tok2->type != ISL_TOKEN_VALUE) {
1510 isl_stream_push_token(s, tok2);
1511 isl_stream_push_token(s, tok);
1512 isl_stream_error(s, NULL,
1513 "expecting constraint matrix dimensions");
1516 n_row = isl_int_get_si(tok->u.v);
1517 n_col = isl_int_get_si(tok2->u.v);
1518 on_new_line = tok2->on_new_line;
1519 isl_token_free(tok2);
1520 isl_token_free(tok);
1521 isl_assert(s->ctx, !on_new_line, return NULL);
1522 isl_assert(s->ctx, n_row >= 0, return NULL);
1523 isl_assert(s->ctx, n_col >= 2 + nparam, return NULL);
1524 tok = isl_stream_next_token_on_same_line(s);
1526 if (tok->type != ISL_TOKEN_VALUE) {
1527 isl_stream_error(s, tok,
1528 "expecting number of output dimensions");
1529 isl_stream_push_token(s, tok);
1532 out = isl_int_get_si(tok->u.v);
1533 isl_token_free(tok);
1535 tok = isl_stream_next_token_on_same_line(s);
1536 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1537 isl_stream_error(s, tok,
1538 "expecting number of input dimensions");
1540 isl_stream_push_token(s, tok);
1543 in = isl_int_get_si(tok->u.v);
1544 isl_token_free(tok);
1546 tok = isl_stream_next_token_on_same_line(s);
1547 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1548 isl_stream_error(s, tok,
1549 "expecting number of existentials");
1551 isl_stream_push_token(s, tok);
1554 local = isl_int_get_si(tok->u.v);
1555 isl_token_free(tok);
1557 tok = isl_stream_next_token_on_same_line(s);
1558 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1559 isl_stream_error(s, tok,
1560 "expecting number of parameters");
1562 isl_stream_push_token(s, tok);
1565 nparam = isl_int_get_si(tok->u.v);
1566 isl_token_free(tok);
1567 if (n_col != 1 + out + in + local + nparam + 1) {
1568 isl_stream_error(s, NULL,
1569 "dimensions don't match");
1573 out = n_col - 2 - nparam;
1574 bmap = isl_basic_map_alloc(s->ctx, nparam, in, out, local, n_row, n_row);
1578 for (i = 0; i < local; ++i) {
1579 int k = isl_basic_map_alloc_div(bmap);
1582 isl_seq_clr(bmap->div[k], 1 + 1 + nparam + in + out + local);
1585 for (i = 0; i < n_row; ++i)
1586 bmap = basic_map_read_polylib_constraint(s, bmap);
1588 tok = isl_stream_next_token_on_same_line(s);
1590 isl_stream_error(s, tok, "unexpected extra token on line");
1591 isl_stream_push_token(s, tok);
1595 bmap = isl_basic_map_simplify(bmap);
1596 bmap = isl_basic_map_finalize(bmap);
1599 isl_basic_map_free(bmap);
1603 static struct isl_map *map_read_polylib(struct isl_stream *s)
1605 struct isl_token *tok;
1606 struct isl_token *tok2;
1608 struct isl_map *map;
1610 tok = isl_stream_next_token(s);
1612 isl_stream_error(s, NULL, "unexpected EOF");
1615 tok2 = isl_stream_next_token_on_same_line(s);
1616 if (tok2 && tok2->type == ISL_TOKEN_VALUE) {
1617 isl_stream_push_token(s, tok2);
1618 isl_stream_push_token(s, tok);
1619 return isl_map_from_basic_map(basic_map_read_polylib(s));
1622 isl_stream_error(s, tok2, "unexpected token");
1623 isl_stream_push_token(s, tok2);
1624 isl_stream_push_token(s, tok);
1627 n = isl_int_get_si(tok->u.v);
1628 isl_token_free(tok);
1630 isl_assert(s->ctx, n >= 1, return NULL);
1632 map = isl_map_from_basic_map(basic_map_read_polylib(s));
1634 for (i = 1; map && i < n; ++i)
1635 map = isl_map_union(map,
1636 isl_map_from_basic_map(basic_map_read_polylib(s)));
1641 static int optional_power(struct isl_stream *s)
1644 struct isl_token *tok;
1646 tok = isl_stream_next_token(s);
1649 if (tok->type != '^') {
1650 isl_stream_push_token(s, tok);
1653 isl_token_free(tok);
1654 tok = isl_stream_next_token(s);
1655 if (!tok || tok->type != ISL_TOKEN_VALUE) {
1656 isl_stream_error(s, tok, "expecting exponent");
1658 isl_stream_push_token(s, tok);
1661 pow = isl_int_get_si(tok->u.v);
1662 isl_token_free(tok);
1666 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1667 __isl_keep isl_map *map, struct vars *v);
1669 static __isl_give isl_pw_qpolynomial *read_factor(struct isl_stream *s,
1670 __isl_keep isl_map *map, struct vars *v)
1672 isl_pw_qpolynomial *pwqp;
1673 struct isl_token *tok;
1675 tok = next_token(s);
1677 isl_stream_error(s, NULL, "unexpected EOF");
1680 if (tok->type == '(') {
1683 isl_token_free(tok);
1684 pwqp = read_term(s, map, v);
1687 if (isl_stream_eat(s, ')'))
1689 pow = optional_power(s);
1690 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1691 } else if (tok->type == ISL_TOKEN_VALUE) {
1692 struct isl_token *tok2;
1693 isl_qpolynomial *qp;
1695 tok2 = isl_stream_next_token(s);
1696 if (tok2 && tok2->type == '/') {
1697 isl_token_free(tok2);
1698 tok2 = next_token(s);
1699 if (!tok2 || tok2->type != ISL_TOKEN_VALUE) {
1700 isl_stream_error(s, tok2, "expected denominator");
1701 isl_token_free(tok);
1702 isl_token_free(tok2);
1705 qp = isl_qpolynomial_rat_cst_on_domain(isl_map_get_space(map),
1706 tok->u.v, tok2->u.v);
1707 isl_token_free(tok2);
1709 isl_stream_push_token(s, tok2);
1710 qp = isl_qpolynomial_cst_on_domain(isl_map_get_space(map),
1713 isl_token_free(tok);
1714 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1715 } else if (tok->type == ISL_TOKEN_INFTY) {
1716 isl_qpolynomial *qp;
1717 isl_token_free(tok);
1718 qp = isl_qpolynomial_infty_on_domain(isl_map_get_space(map));
1719 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1720 } else if (tok->type == ISL_TOKEN_NAN) {
1721 isl_qpolynomial *qp;
1722 isl_token_free(tok);
1723 qp = isl_qpolynomial_nan_on_domain(isl_map_get_space(map));
1724 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1725 } else if (tok->type == ISL_TOKEN_IDENT) {
1727 int pos = vars_pos(v, tok->u.s, -1);
1729 isl_qpolynomial *qp;
1731 isl_token_free(tok);
1735 vars_drop(v, v->n - n);
1736 isl_stream_error(s, tok, "unknown identifier");
1737 isl_token_free(tok);
1740 isl_token_free(tok);
1741 pow = optional_power(s);
1742 qp = isl_qpolynomial_var_pow_on_domain(isl_map_get_space(map), pos, pow);
1743 pwqp = isl_pw_qpolynomial_from_qpolynomial(qp);
1744 } else if (tok->type == '[') {
1748 isl_stream_push_token(s, tok);
1749 pwaff = accept_div(s, isl_map_get_space(map), v);
1750 pow = optional_power(s);
1751 pwqp = isl_pw_qpolynomial_from_pw_aff(pwaff);
1752 pwqp = isl_pw_qpolynomial_pow(pwqp, pow);
1753 } else if (tok->type == '-') {
1754 isl_token_free(tok);
1755 pwqp = read_factor(s, map, v);
1756 pwqp = isl_pw_qpolynomial_neg(pwqp);
1758 isl_stream_error(s, tok, "unexpected isl_token");
1759 isl_stream_push_token(s, tok);
1763 if (isl_stream_eat_if_available(s, '*') ||
1764 isl_stream_next_token_is(s, ISL_TOKEN_IDENT)) {
1765 isl_pw_qpolynomial *pwqp2;
1767 pwqp2 = read_factor(s, map, v);
1768 pwqp = isl_pw_qpolynomial_mul(pwqp, pwqp2);
1773 isl_pw_qpolynomial_free(pwqp);
1777 static __isl_give isl_pw_qpolynomial *read_term(struct isl_stream *s,
1778 __isl_keep isl_map *map, struct vars *v)
1780 struct isl_token *tok;
1781 isl_pw_qpolynomial *pwqp;
1783 pwqp = read_factor(s, map, v);
1786 tok = next_token(s);
1790 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_add(pwqp, pwqp2);
1796 } else if (tok->type == '-') {
1797 isl_pw_qpolynomial *pwqp2;
1799 isl_token_free(tok);
1800 pwqp2 = read_factor(s, map, v);
1801 pwqp = isl_pw_qpolynomial_sub(pwqp, pwqp2);
1802 } else if (tok->type == ISL_TOKEN_VALUE &&
1803 isl_int_is_neg(tok->u.v)) {
1804 isl_pw_qpolynomial *pwqp2;
1806 isl_stream_push_token(s, tok);
1807 pwqp2 = read_factor(s, map, v);
1808 pwqp = isl_pw_qpolynomial_add(pwqp, pwqp2);
1810 isl_stream_push_token(s, tok);
1818 static __isl_give isl_map *read_optional_disjuncts(struct isl_stream *s,
1819 __isl_take isl_map *map, struct vars *v, int rational)
1821 struct isl_token *tok;
1823 tok = isl_stream_next_token(s);
1825 isl_stream_error(s, NULL, "unexpected EOF");
1828 if (tok->type == ':' ||
1829 (tok->type == ISL_TOKEN_OR && !strcmp(tok->u.s, "|"))) {
1830 isl_token_free(tok);
1831 map = read_disjuncts(s, v, map, rational);
1833 isl_stream_push_token(s, tok);
1841 static struct isl_obj obj_read_poly(struct isl_stream *s,
1842 __isl_take isl_map *map, struct vars *v, int n)
1844 struct isl_obj obj = { isl_obj_pw_qpolynomial, NULL };
1845 isl_pw_qpolynomial *pwqp;
1846 struct isl_set *set;
1848 pwqp = read_term(s, map, v);
1849 map = read_optional_disjuncts(s, map, v, 0);
1850 set = isl_map_range(map);
1852 pwqp = isl_pw_qpolynomial_intersect_domain(pwqp, set);
1854 vars_drop(v, v->n - n);
1860 static struct isl_obj obj_read_poly_or_fold(struct isl_stream *s,
1861 __isl_take isl_set *set, struct vars *v, int n)
1863 struct isl_obj obj = { isl_obj_pw_qpolynomial_fold, NULL };
1864 isl_pw_qpolynomial *pwqp;
1865 isl_pw_qpolynomial_fold *pwf = NULL;
1867 if (!isl_stream_eat_if_available(s, ISL_TOKEN_MAX))
1868 return obj_read_poly(s, set, v, n);
1870 if (isl_stream_eat(s, '('))
1873 pwqp = read_term(s, set, v);
1874 pwf = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max, pwqp);
1876 while (isl_stream_eat_if_available(s, ',')) {
1877 isl_pw_qpolynomial_fold *pwf_i;
1878 pwqp = read_term(s, set, v);
1879 pwf_i = isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max,
1881 pwf = isl_pw_qpolynomial_fold_fold(pwf, pwf_i);
1884 if (isl_stream_eat(s, ')'))
1887 set = read_optional_disjuncts(s, set, v, 0);
1888 pwf = isl_pw_qpolynomial_fold_intersect_domain(pwf, set);
1890 vars_drop(v, v->n - n);
1896 isl_pw_qpolynomial_fold_free(pwf);
1897 obj.type = isl_obj_none;
1901 static int is_rational(struct isl_stream *s)
1903 struct isl_token *tok;
1905 tok = isl_stream_next_token(s);
1908 if (tok->type == ISL_TOKEN_RAT && isl_stream_next_token_is(s, ':')) {
1909 isl_token_free(tok);
1910 isl_stream_eat(s, ':');
1914 isl_stream_push_token(s, tok);
1919 static struct isl_obj obj_read_body(struct isl_stream *s,
1920 __isl_take isl_map *map, struct vars *v)
1922 struct isl_token *tok;
1923 struct isl_obj obj = { isl_obj_set, NULL };
1927 rational = is_rational(s);
1929 map = isl_map_set_rational(map);
1931 if (isl_stream_next_token_is(s, ':')) {
1932 obj.type = isl_obj_set;
1933 obj.v = read_optional_disjuncts(s, map, v, rational);
1937 if (!next_is_tuple(s))
1938 return obj_read_poly_or_fold(s, map, v, n);
1940 map = read_map_tuple(s, map, isl_dim_in, v, rational, 0);
1943 tok = isl_stream_next_token(s);
1946 if (tok->type == ISL_TOKEN_TO) {
1947 obj.type = isl_obj_map;
1948 isl_token_free(tok);
1949 if (!next_is_tuple(s)) {
1950 isl_set *set = isl_map_domain(map);
1951 return obj_read_poly_or_fold(s, set, v, n);
1953 map = read_map_tuple(s, map, isl_dim_out, v, rational, 0);
1957 map = isl_map_domain(map);
1958 isl_stream_push_token(s, tok);
1961 map = read_optional_disjuncts(s, map, v, rational);
1963 vars_drop(v, v->n - n);
1969 obj.type = isl_obj_none;
1973 static struct isl_obj to_union(isl_ctx *ctx, struct isl_obj obj)
1975 if (obj.type == isl_obj_map) {
1976 obj.v = isl_union_map_from_map(obj.v);
1977 obj.type = isl_obj_union_map;
1978 } else if (obj.type == isl_obj_set) {
1979 obj.v = isl_union_set_from_set(obj.v);
1980 obj.type = isl_obj_union_set;
1981 } else if (obj.type == isl_obj_pw_qpolynomial) {
1982 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
1983 obj.type = isl_obj_union_pw_qpolynomial;
1984 } else if (obj.type == isl_obj_pw_qpolynomial_fold) {
1985 obj.v = isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj.v);
1986 obj.type = isl_obj_union_pw_qpolynomial_fold;
1988 isl_assert(ctx, 0, goto error);
1991 obj.type->free(obj.v);
1992 obj.type = isl_obj_none;
1996 static struct isl_obj obj_add(struct isl_ctx *ctx,
1997 struct isl_obj obj1, struct isl_obj obj2)
1999 if (obj1.type == isl_obj_set && obj2.type == isl_obj_union_set)
2000 obj1 = to_union(ctx, obj1);
2001 if (obj1.type == isl_obj_union_set && obj2.type == isl_obj_set)
2002 obj2 = to_union(ctx, obj2);
2003 if (obj1.type == isl_obj_map && obj2.type == isl_obj_union_map)
2004 obj1 = to_union(ctx, obj1);
2005 if (obj1.type == isl_obj_union_map && obj2.type == isl_obj_map)
2006 obj2 = to_union(ctx, obj2);
2007 if (obj1.type == isl_obj_pw_qpolynomial &&
2008 obj2.type == isl_obj_union_pw_qpolynomial)
2009 obj1 = to_union(ctx, obj1);
2010 if (obj1.type == isl_obj_union_pw_qpolynomial &&
2011 obj2.type == isl_obj_pw_qpolynomial)
2012 obj2 = to_union(ctx, obj2);
2013 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
2014 obj2.type == isl_obj_union_pw_qpolynomial_fold)
2015 obj1 = to_union(ctx, obj1);
2016 if (obj1.type == isl_obj_union_pw_qpolynomial_fold &&
2017 obj2.type == isl_obj_pw_qpolynomial_fold)
2018 obj2 = to_union(ctx, obj2);
2019 isl_assert(ctx, obj1.type == obj2.type, goto error);
2020 if (obj1.type == isl_obj_map && !isl_map_has_equal_space(obj1.v, obj2.v)) {
2021 obj1 = to_union(ctx, obj1);
2022 obj2 = to_union(ctx, obj2);
2024 if (obj1.type == isl_obj_set && !isl_set_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 &&
2029 !isl_pw_qpolynomial_has_equal_space(obj1.v, obj2.v)) {
2030 obj1 = to_union(ctx, obj1);
2031 obj2 = to_union(ctx, obj2);
2033 if (obj1.type == isl_obj_pw_qpolynomial_fold &&
2034 !isl_pw_qpolynomial_fold_has_equal_space(obj1.v, obj2.v)) {
2035 obj1 = to_union(ctx, obj1);
2036 obj2 = to_union(ctx, obj2);
2038 obj1.v = obj1.type->add(obj1.v, obj2.v);
2041 obj1.type->free(obj1.v);
2042 obj2.type->free(obj2.v);
2043 obj1.type = isl_obj_none;
2048 static struct isl_obj obj_read(struct isl_stream *s)
2050 isl_map *map = NULL;
2051 struct isl_token *tok;
2052 struct vars *v = NULL;
2053 struct isl_obj obj = { isl_obj_set, NULL };
2055 tok = next_token(s);
2057 isl_stream_error(s, NULL, "unexpected EOF");
2060 if (tok->type == ISL_TOKEN_VALUE) {
2061 struct isl_token *tok2;
2062 struct isl_map *map;
2064 tok2 = isl_stream_next_token(s);
2065 if (!tok2 || tok2->type != ISL_TOKEN_VALUE ||
2066 isl_int_is_neg(tok2->u.v)) {
2068 isl_stream_push_token(s, tok2);
2069 obj.type = isl_obj_int;
2070 obj.v = isl_int_obj_alloc(s->ctx, tok->u.v);
2071 isl_token_free(tok);
2074 isl_stream_push_token(s, tok2);
2075 isl_stream_push_token(s, tok);
2076 map = map_read_polylib(s);
2079 if (isl_map_may_be_set(map))
2080 obj.v = isl_map_range(map);
2082 obj.type = isl_obj_map;
2087 v = vars_new(s->ctx);
2089 isl_stream_push_token(s, tok);
2092 map = isl_map_universe(isl_space_params_alloc(s->ctx, 0));
2093 if (tok->type == '[') {
2094 isl_stream_push_token(s, tok);
2095 map = read_map_tuple(s, map, isl_dim_param, v, 0, 0);
2098 tok = isl_stream_next_token(s);
2099 if (!tok || tok->type != ISL_TOKEN_TO) {
2100 isl_stream_error(s, tok, "expecting '->'");
2102 isl_stream_push_token(s, tok);
2105 isl_token_free(tok);
2106 tok = isl_stream_next_token(s);
2108 if (!tok || tok->type != '{') {
2109 isl_stream_error(s, tok, "expecting '{'");
2111 isl_stream_push_token(s, tok);
2114 isl_token_free(tok);
2116 tok = isl_stream_next_token(s);
2119 else if (tok->type == ISL_TOKEN_IDENT && !strcmp(tok->u.s, "Sym")) {
2120 isl_token_free(tok);
2121 if (isl_stream_eat(s, '='))
2123 map = read_map_tuple(s, map, isl_dim_param, v, 0, 1);
2126 } else if (tok->type == '}') {
2127 obj.type = isl_obj_union_set;
2128 obj.v = isl_union_set_empty(isl_map_get_space(map));
2129 isl_token_free(tok);
2132 isl_stream_push_token(s, tok);
2137 o = obj_read_body(s, isl_map_copy(map), v);
2138 if (o.type == isl_obj_none || !o.v)
2143 obj = obj_add(s->ctx, obj, o);
2144 if (obj.type == isl_obj_none || !obj.v)
2147 tok = isl_stream_next_token(s);
2148 if (!tok || tok->type != ';')
2150 isl_token_free(tok);
2151 if (isl_stream_next_token_is(s, '}')) {
2152 tok = isl_stream_next_token(s);
2157 if (tok && tok->type == '}') {
2158 isl_token_free(tok);
2160 isl_stream_error(s, tok, "unexpected isl_token");
2162 isl_token_free(tok);
2172 obj.type->free(obj.v);
2179 struct isl_obj isl_stream_read_obj(struct isl_stream *s)
2184 __isl_give isl_map *isl_stream_read_map(struct isl_stream *s)
2190 isl_assert(s->ctx, obj.type == isl_obj_map ||
2191 obj.type == isl_obj_set, goto error);
2193 if (obj.type == isl_obj_set)
2194 obj.v = isl_map_from_range(obj.v);
2198 obj.type->free(obj.v);
2202 __isl_give isl_set *isl_stream_read_set(struct isl_stream *s)
2208 if (obj.type == isl_obj_map && isl_map_may_be_set(obj.v)) {
2209 obj.v = isl_map_range(obj.v);
2210 obj.type = isl_obj_set;
2212 isl_assert(s->ctx, obj.type == isl_obj_set, goto error);
2217 obj.type->free(obj.v);
2221 __isl_give isl_union_map *isl_stream_read_union_map(struct isl_stream *s)
2226 if (obj.type == isl_obj_map) {
2227 obj.type = isl_obj_union_map;
2228 obj.v = isl_union_map_from_map(obj.v);
2230 if (obj.type == isl_obj_set) {
2231 obj.type = isl_obj_union_set;
2232 obj.v = isl_union_set_from_set(obj.v);
2234 if (obj.v && obj.type == isl_obj_union_set &&
2235 isl_union_set_is_empty(obj.v))
2236 obj.type = isl_obj_union_map;
2237 if (obj.v && obj.type != isl_obj_union_map)
2238 isl_die(s->ctx, isl_error_invalid, "invalid input", goto error);
2242 obj.type->free(obj.v);
2246 __isl_give isl_union_set *isl_stream_read_union_set(struct isl_stream *s)
2251 if (obj.type == isl_obj_set) {
2252 obj.type = isl_obj_union_set;
2253 obj.v = isl_union_set_from_set(obj.v);
2256 isl_assert(s->ctx, obj.type == isl_obj_union_set, goto error);
2260 obj.type->free(obj.v);
2264 static __isl_give isl_basic_map *basic_map_read(struct isl_stream *s)
2267 struct isl_map *map;
2268 struct isl_basic_map *bmap;
2275 isl_assert(map->ctx, map->n <= 1, goto error);
2278 bmap = isl_basic_map_empty_like_map(map);
2280 bmap = isl_basic_map_copy(map->p[0]);
2290 static __isl_give isl_basic_set *basic_set_read(struct isl_stream *s)
2292 isl_basic_map *bmap;
2293 bmap = basic_map_read(s);
2296 if (!isl_basic_map_may_be_set(bmap))
2297 isl_die(s->ctx, isl_error_invalid,
2298 "input is not a set", goto error);
2299 return isl_basic_map_range(bmap);
2301 isl_basic_map_free(bmap);
2305 __isl_give isl_basic_map *isl_basic_map_read_from_file(isl_ctx *ctx,
2308 struct isl_basic_map *bmap;
2309 struct isl_stream *s = isl_stream_new_file(ctx, input);
2312 bmap = basic_map_read(s);
2317 __isl_give isl_basic_set *isl_basic_set_read_from_file(isl_ctx *ctx,
2320 isl_basic_set *bset;
2321 struct isl_stream *s = isl_stream_new_file(ctx, input);
2324 bset = basic_set_read(s);
2329 struct isl_basic_map *isl_basic_map_read_from_str(struct isl_ctx *ctx,
2332 struct isl_basic_map *bmap;
2333 struct isl_stream *s = isl_stream_new_str(ctx, str);
2336 bmap = basic_map_read(s);
2341 struct isl_basic_set *isl_basic_set_read_from_str(struct isl_ctx *ctx,
2344 isl_basic_set *bset;
2345 struct isl_stream *s = isl_stream_new_str(ctx, str);
2348 bset = basic_set_read(s);
2353 __isl_give isl_map *isl_map_read_from_file(struct isl_ctx *ctx,
2356 struct isl_map *map;
2357 struct isl_stream *s = isl_stream_new_file(ctx, input);
2360 map = isl_stream_read_map(s);
2365 __isl_give isl_map *isl_map_read_from_str(struct isl_ctx *ctx,
2368 struct isl_map *map;
2369 struct isl_stream *s = isl_stream_new_str(ctx, str);
2372 map = isl_stream_read_map(s);
2377 __isl_give isl_set *isl_set_read_from_file(struct isl_ctx *ctx,
2381 struct isl_stream *s = isl_stream_new_file(ctx, input);
2384 set = isl_stream_read_set(s);
2389 struct isl_set *isl_set_read_from_str(struct isl_ctx *ctx,
2393 struct isl_stream *s = isl_stream_new_str(ctx, str);
2396 set = isl_stream_read_set(s);
2401 __isl_give isl_union_map *isl_union_map_read_from_file(isl_ctx *ctx,
2404 isl_union_map *umap;
2405 struct isl_stream *s = isl_stream_new_file(ctx, input);
2408 umap = isl_stream_read_union_map(s);
2413 __isl_give isl_union_map *isl_union_map_read_from_str(struct isl_ctx *ctx,
2416 isl_union_map *umap;
2417 struct isl_stream *s = isl_stream_new_str(ctx, str);
2420 umap = isl_stream_read_union_map(s);
2425 __isl_give isl_union_set *isl_union_set_read_from_file(isl_ctx *ctx,
2428 isl_union_set *uset;
2429 struct isl_stream *s = isl_stream_new_file(ctx, input);
2432 uset = isl_stream_read_union_set(s);
2437 __isl_give isl_union_set *isl_union_set_read_from_str(struct isl_ctx *ctx,
2440 isl_union_set *uset;
2441 struct isl_stream *s = isl_stream_new_str(ctx, str);
2444 uset = isl_stream_read_union_set(s);
2449 static __isl_give isl_vec *isl_vec_read_polylib(struct isl_stream *s)
2451 struct isl_vec *vec = NULL;
2452 struct isl_token *tok;
2456 tok = isl_stream_next_token(s);
2457 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2458 isl_stream_error(s, tok, "expecting vector length");
2462 size = isl_int_get_si(tok->u.v);
2463 isl_token_free(tok);
2465 vec = isl_vec_alloc(s->ctx, size);
2467 for (j = 0; j < size; ++j) {
2468 tok = isl_stream_next_token(s);
2469 if (!tok || tok->type != ISL_TOKEN_VALUE) {
2470 isl_stream_error(s, tok, "expecting constant value");
2473 isl_int_set(vec->el[j], tok->u.v);
2474 isl_token_free(tok);
2479 isl_token_free(tok);
2484 static __isl_give isl_vec *vec_read(struct isl_stream *s)
2486 return isl_vec_read_polylib(s);
2489 __isl_give isl_vec *isl_vec_read_from_file(isl_ctx *ctx, FILE *input)
2492 struct isl_stream *s = isl_stream_new_file(ctx, input);
2500 __isl_give isl_pw_qpolynomial *isl_stream_read_pw_qpolynomial(
2501 struct isl_stream *s)
2507 isl_assert(s->ctx, obj.type == isl_obj_pw_qpolynomial,
2512 obj.type->free(obj.v);
2516 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_str(isl_ctx *ctx,
2519 isl_pw_qpolynomial *pwqp;
2520 struct isl_stream *s = isl_stream_new_str(ctx, str);
2523 pwqp = isl_stream_read_pw_qpolynomial(s);
2528 __isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_read_from_file(isl_ctx *ctx,
2531 isl_pw_qpolynomial *pwqp;
2532 struct isl_stream *s = isl_stream_new_file(ctx, input);
2535 pwqp = isl_stream_read_pw_qpolynomial(s);
2540 /* Is the next token an identifer not in "v"?
2542 static int next_is_fresh_ident(struct isl_stream *s, struct vars *v)
2546 struct isl_token *tok;
2548 tok = isl_stream_next_token(s);
2551 fresh = tok->type == ISL_TOKEN_IDENT && vars_pos(v, tok->u.s, -1) >= n;
2552 isl_stream_push_token(s, tok);
2554 vars_drop(v, v->n - n);
2559 /* First read the domain of the affine expression, which may be
2560 * a parameter space or a set.
2561 * The tricky part is that we don't know if the domain is a set or not,
2562 * so when we are trying to read the domain, we may actually be reading
2563 * the affine expression itself (defined on a parameter domains)
2564 * If the tuple we are reading is named, we assume it's the domain.
2565 * Also, if inside the tuple, the first thing we find is a nested tuple
2566 * or a new identifier, we again assume it's the domain.
2567 * Otherwise, we assume we are reading an affine expression.
2569 static __isl_give isl_set *read_aff_domain(struct isl_stream *s,
2570 __isl_take isl_set *dom, struct vars *v)
2572 struct isl_token *tok;
2574 tok = isl_stream_next_token(s);
2575 if (tok && (tok->type == ISL_TOKEN_IDENT || tok->is_keyword)) {
2576 isl_stream_push_token(s, tok);
2577 return read_map_tuple(s, dom, isl_dim_set, v, 1, 0);
2579 if (!tok || tok->type != '[') {
2580 isl_stream_error(s, tok, "expecting '['");
2583 if (next_is_tuple(s) || next_is_fresh_ident(s, v)) {
2584 isl_stream_push_token(s, tok);
2585 dom = read_map_tuple(s, dom, isl_dim_set, v, 1, 0);
2587 isl_stream_push_token(s, tok);
2592 isl_stream_push_token(s, tok);
2597 /* Read an affine expression from "s".
2599 __isl_give isl_aff *isl_stream_read_aff(struct isl_stream *s)
2604 ma = isl_stream_read_multi_aff(s);
2607 if (isl_multi_aff_dim(ma, isl_dim_out) != 1)
2608 isl_die(s->ctx, isl_error_invalid,
2609 "expecting single affine expression",
2612 aff = isl_multi_aff_get_aff(ma, 0);
2613 isl_multi_aff_free(ma);
2616 isl_multi_aff_free(ma);
2620 /* Read a piecewise affine expression from "s" with domain (space) "dom".
2622 static __isl_give isl_pw_aff *read_pw_aff_with_dom(struct isl_stream *s,
2623 __isl_take isl_set *dom, struct vars *v)
2625 isl_pw_aff *pwaff = NULL;
2627 if (!isl_set_is_params(dom) && isl_stream_eat(s, ISL_TOKEN_TO))
2630 if (isl_stream_eat(s, '['))
2633 pwaff = accept_affine(s, isl_set_get_space(dom), v);
2635 if (isl_stream_eat(s, ']'))
2638 dom = read_optional_disjuncts(s, dom, v, 0);
2639 pwaff = isl_pw_aff_intersect_domain(pwaff, dom);
2644 isl_pw_aff_free(pwaff);
2648 __isl_give isl_pw_aff *isl_stream_read_pw_aff(struct isl_stream *s)
2651 isl_set *dom = NULL;
2653 isl_pw_aff *pa = NULL;
2656 v = vars_new(s->ctx);
2660 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2661 if (next_is_tuple(s)) {
2662 dom = read_map_tuple(s, dom, isl_dim_param, v, 1, 0);
2663 if (isl_stream_eat(s, ISL_TOKEN_TO))
2666 if (isl_stream_eat(s, '{'))
2670 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2671 pa = read_pw_aff_with_dom(s, aff_dom, v);
2672 vars_drop(v, v->n - n);
2674 while (isl_stream_eat_if_available(s, ';')) {
2678 aff_dom = read_aff_domain(s, isl_set_copy(dom), v);
2679 pa_i = read_pw_aff_with_dom(s, aff_dom, v);
2680 vars_drop(v, v->n - n);
2682 pa = isl_pw_aff_union_add(pa, pa_i);
2685 if (isl_stream_eat(s, '}'))
2694 isl_pw_aff_free(pa);
2698 __isl_give isl_aff *isl_aff_read_from_str(isl_ctx *ctx, const char *str)
2701 struct isl_stream *s = isl_stream_new_str(ctx, str);
2704 aff = isl_stream_read_aff(s);
2709 __isl_give isl_pw_aff *isl_pw_aff_read_from_str(isl_ctx *ctx, const char *str)
2712 struct isl_stream *s = isl_stream_new_str(ctx, str);
2715 pa = isl_stream_read_pw_aff(s);
2720 /* Read an isl_pw_multi_aff from "s".
2721 * We currently read a generic object and if it turns out to be a set or
2722 * a map, we convert that to an isl_pw_multi_aff.
2723 * It would be more efficient if we were to construct the isl_pw_multi_aff
2726 __isl_give isl_pw_multi_aff *isl_stream_read_pw_multi_aff(struct isl_stream *s)
2734 if (obj.type == isl_obj_map)
2735 return isl_pw_multi_aff_from_map(obj.v);
2736 if (obj.type == isl_obj_set)
2737 return isl_pw_multi_aff_from_set(obj.v);
2739 obj.type->free(obj.v);
2740 isl_die(s->ctx, isl_error_invalid, "unexpected object type",
2744 __isl_give isl_pw_multi_aff *isl_pw_multi_aff_read_from_str(isl_ctx *ctx,
2747 isl_pw_multi_aff *pma;
2748 struct isl_stream *s = isl_stream_new_str(ctx, str);
2751 pma = isl_stream_read_pw_multi_aff(s);
2756 /* Read an isl_union_pw_multi_aff from "s".
2757 * We currently read a generic object and if it turns out to be a set or
2758 * a map, we convert that to an isl_union_pw_multi_aff.
2759 * It would be more efficient if we were to construct
2760 * the isl_union_pw_multi_aff directly.
2762 __isl_give isl_union_pw_multi_aff *isl_stream_read_union_pw_multi_aff(
2763 struct isl_stream *s)
2771 if (obj.type == isl_obj_map || obj.type == isl_obj_set)
2772 obj = to_union(s->ctx, obj);
2773 if (obj.type == isl_obj_union_map)
2774 return isl_union_pw_multi_aff_from_union_map(obj.v);
2775 if (obj.type == isl_obj_union_set)
2776 return isl_union_pw_multi_aff_from_union_set(obj.v);
2778 obj.type->free(obj.v);
2779 isl_die(s->ctx, isl_error_invalid, "unexpected object type",
2783 /* Read an isl_union_pw_multi_aff from "str".
2785 __isl_give isl_union_pw_multi_aff *isl_union_pw_multi_aff_read_from_str(
2786 isl_ctx *ctx, const char *str)
2788 isl_union_pw_multi_aff *upma;
2789 struct isl_stream *s = isl_stream_new_str(ctx, str);
2792 upma = isl_stream_read_union_pw_multi_aff(s);
2797 /* Assuming "pa" represents a single affine expression defined on a universe
2798 * domain, extract this affine expression.
2800 static __isl_give isl_aff *aff_from_pw_aff(__isl_take isl_pw_aff *pa)
2807 isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
2808 "expecting single affine expression",
2810 if (!isl_set_plain_is_universe(pa->p[0].set))
2811 isl_die(isl_pw_aff_get_ctx(pa), isl_error_invalid,
2812 "expecting universe domain",
2815 aff = isl_aff_copy(pa->p[0].aff);
2816 isl_pw_aff_free(pa);
2819 isl_pw_aff_free(pa);
2823 /* Read a multi-affine expression from "s".
2824 * If the multi-affine expression has a domain, then then tuple
2825 * representing this domain cannot involve any affine expressions.
2826 * The tuple representing the actual expressions needs to consist
2827 * of only affine expressions. Moreover, these expressions can
2828 * only depend on parameters and input dimensions and not on other
2829 * output dimensions.
2831 __isl_give isl_multi_aff *isl_stream_read_multi_aff(struct isl_stream *s)
2834 isl_set *dom = NULL;
2835 isl_multi_pw_aff *tuple = NULL;
2837 isl_space *space, *dom_space;
2838 isl_multi_aff *ma = NULL;
2840 v = vars_new(s->ctx);
2844 dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
2845 if (next_is_tuple(s)) {
2846 dom = read_map_tuple(s, dom, isl_dim_param, v, 1, 0);
2847 if (isl_stream_eat(s, ISL_TOKEN_TO))
2850 if (!isl_set_plain_is_universe(dom))
2851 isl_die(s->ctx, isl_error_invalid,
2852 "expecting universe parameter domain", goto error);
2853 if (isl_stream_eat(s, '{'))
2856 tuple = read_tuple(s, v, 0, 0);
2859 if (isl_stream_eat_if_available(s, ISL_TOKEN_TO)) {
2864 has_expr = tuple_has_expr(tuple);
2868 isl_die(s->ctx, isl_error_invalid,
2869 "expecting universe domain", goto error);
2870 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
2871 set = isl_set_universe(space);
2872 dom = isl_set_intersect_params(set, dom);
2873 isl_multi_pw_aff_free(tuple);
2874 tuple = read_tuple(s, v, 0, 0);
2879 if (isl_stream_eat(s, '}'))
2882 n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
2883 dim = isl_set_dim(dom, isl_dim_all);
2884 dom_space = isl_set_get_space(dom);
2885 space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
2886 space = isl_space_align_params(space, isl_space_copy(dom_space));
2887 if (!isl_space_is_params(dom_space))
2888 space = isl_space_map_from_domain_and_range(
2889 isl_space_copy(dom_space), space);
2890 isl_space_free(dom_space);
2891 ma = isl_multi_aff_alloc(space);
2893 for (i = 0; i < n; ++i) {
2896 pa = isl_multi_pw_aff_get_pw_aff(tuple, i);
2897 aff = aff_from_pw_aff(pa);
2900 if (isl_aff_involves_dims(aff, isl_dim_in, dim, i + 1)) {
2902 isl_die(s->ctx, isl_error_invalid,
2903 "not an affine expression", goto error);
2905 aff = isl_aff_drop_dims(aff, isl_dim_in, dim, n);
2906 space = isl_multi_aff_get_domain_space(ma);
2907 aff = isl_aff_reset_domain_space(aff, space);
2908 ma = isl_multi_aff_set_aff(ma, i, aff);
2911 isl_multi_pw_aff_free(tuple);
2916 isl_multi_pw_aff_free(tuple);
2919 isl_multi_aff_free(ma);
2923 __isl_give isl_multi_aff *isl_multi_aff_read_from_str(isl_ctx *ctx,
2926 isl_multi_aff *maff;
2927 struct isl_stream *s = isl_stream_new_str(ctx, str);
2930 maff = isl_stream_read_multi_aff(s);
2935 __isl_give isl_union_pw_qpolynomial *isl_stream_read_union_pw_qpolynomial(
2936 struct isl_stream *s)
2941 if (obj.type == isl_obj_pw_qpolynomial) {
2942 obj.type = isl_obj_union_pw_qpolynomial;
2943 obj.v = isl_union_pw_qpolynomial_from_pw_qpolynomial(obj.v);
2946 isl_assert(s->ctx, obj.type == isl_obj_union_pw_qpolynomial,
2951 obj.type->free(obj.v);
2955 __isl_give isl_union_pw_qpolynomial *isl_union_pw_qpolynomial_read_from_str(
2956 isl_ctx *ctx, const char *str)
2958 isl_union_pw_qpolynomial *upwqp;
2959 struct isl_stream *s = isl_stream_new_str(ctx, str);
2962 upwqp = isl_stream_read_union_pw_qpolynomial(s);