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
);