2 * Copyright 2008-2009 Katholieke Universiteit Leuven
3 * Copyright 2010 INRIA Saclay
5 * Use of this software is governed by the GNU LGPLv2.1 license
7 * Written by Sven Verdoolaege, K.U.Leuven, Departement
8 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
9 * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
10 * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
16 #include <isl_ctx_private.h>
17 #include <isl_map_private.h>
21 #include <isl_stream_private.h>
23 #include "isl_polynomial_private.h"
24 #include <isl/union_map.h>
25 #include <isl_mat_private.h>
26 #include <isl_aff_private.h>
32 struct variable
*next
;
41 static struct vars
*vars_new(struct isl_ctx
*ctx
)
44 v
= isl_alloc_type(ctx
, struct vars
);
53 static void variable_free(struct variable
*var
)
56 struct variable
*next
= var
->next
;
63 static void vars_free(struct vars
*v
)
71 static void vars_drop(struct vars
*v
, int n
)
82 struct variable
*next
= var
->next
;
90 static struct variable
*variable_new(struct vars
*v
, const char *name
, int len
,
94 var
= isl_calloc_type(v
->ctx
, struct variable
);
97 var
->name
= strdup(name
);
98 var
->name
[len
] = '\0';
107 static int vars_pos(struct vars
*v
, const char *s
, int len
)
114 for (q
= v
->v
; q
; q
= q
->next
) {
115 if (strncmp(q
->name
, s
, len
) == 0 && q
->name
[len
] == '\0')
122 v
->v
= variable_new(v
, s
, len
, v
->n
);
130 static int vars_add_anon(struct vars
*v
)
132 v
->v
= variable_new(v
, "", 0, v
->n
);
141 static __isl_give isl_map
*set_name(__isl_take isl_map
*map
,
142 enum isl_dim_type type
, unsigned pos
, char *name
)
151 prime
= strchr(name
, '\'');
154 map
= isl_map_set_dim_name(map
, type
, pos
, name
);
161 /* Obtain next token, with some preprocessing.
162 * In particular, evaluate expressions of the form x^y,
163 * with x and y values.
165 static struct isl_token
*next_token(struct isl_stream
*s
)
167 struct isl_token
*tok
, *tok2
;
169 tok
= isl_stream_next_token(s
);
170 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
)
172 if (!isl_stream_eat_if_available(s
, '^'))
174 tok2
= isl_stream_next_token(s
);
175 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
176 isl_stream_error(s
, tok2
, "expecting constant value");
180 isl_int_pow_ui(tok
->u
.v
, tok
->u
.v
, isl_int_get_ui(tok2
->u
.v
));
182 isl_token_free(tok2
);
186 isl_token_free(tok2
);
190 static int accept_cst_factor(struct isl_stream
*s
, isl_int
*f
)
192 struct isl_token
*tok
;
195 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
196 isl_stream_error(s
, tok
, "expecting constant value");
200 isl_int_mul(*f
, *f
, tok
->u
.v
);
204 if (isl_stream_eat_if_available(s
, '*'))
205 return accept_cst_factor(s
, f
);
213 /* Given an affine expression aff, return an affine expression
214 * for aff % d, with d the next token on the stream, which is
215 * assumed to be a constant.
217 * We introduce an integer division q = [aff/d] and the result
218 * is set to aff - d q.
220 static __isl_give isl_pw_aff
*affine_mod(struct isl_stream
*s
,
221 struct vars
*v
, __isl_take isl_pw_aff
*aff
)
223 struct isl_token
*tok
;
227 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
228 isl_stream_error(s
, tok
, "expecting constant value");
232 q
= isl_pw_aff_copy(aff
);
233 q
= isl_pw_aff_scale_down(q
, tok
->u
.v
);
234 q
= isl_pw_aff_floor(q
);
235 q
= isl_pw_aff_scale(q
, tok
->u
.v
);
237 aff
= isl_pw_aff_sub(aff
, q
);
242 isl_pw_aff_free(aff
);
247 static __isl_give isl_pw_aff
*accept_affine(struct isl_stream
*s
,
248 __isl_take isl_space
*dim
, struct vars
*v
);
249 static __isl_give isl_pw_aff_list
*accept_affine_list(struct isl_stream
*s
,
250 __isl_take isl_space
*dim
, struct vars
*v
);
252 static __isl_give isl_pw_aff
*accept_minmax(struct isl_stream
*s
,
253 __isl_take isl_space
*dim
, struct vars
*v
)
255 struct isl_token
*tok
;
256 isl_pw_aff_list
*list
= NULL
;
259 tok
= isl_stream_next_token(s
);
262 min
= tok
->type
== ISL_TOKEN_MIN
;
265 if (isl_stream_eat(s
, '('))
268 list
= accept_affine_list(s
, isl_space_copy(dim
), v
);
272 if (isl_stream_eat(s
, ')'))
276 return min
? isl_pw_aff_list_min(list
) : isl_pw_aff_list_max(list
);
279 isl_pw_aff_list_free(list
);
283 static __isl_give isl_pw_aff
*accept_div(struct isl_stream
*s
,
284 __isl_take isl_space
*dim
, struct vars
*v
)
286 struct isl_token
*tok
;
290 isl_pw_aff
*pwaff
= NULL
;
292 if (isl_stream_eat_if_available(s
, ISL_TOKEN_FLOORD
))
294 else if (isl_stream_eat_if_available(s
, ISL_TOKEN_CEILD
))
297 if (isl_stream_eat(s
, '('))
300 if (isl_stream_eat(s
, '['))
302 if (isl_stream_eat_if_available(s
, '('))
306 pwaff
= accept_affine(s
, isl_space_copy(dim
), v
);
309 if (isl_stream_eat(s
, ','))
312 if (seen_paren
&& isl_stream_eat(s
, ')'))
314 if (isl_stream_eat(s
, '/'))
321 if (tok
->type
!= ISL_TOKEN_VALUE
) {
322 isl_stream_error(s
, tok
, "expected denominator");
323 isl_stream_push_token(s
, tok
);
326 isl_pw_aff_scale_down(pwaff
, tok
->u
.v
);
330 pwaff
= isl_pw_aff_ceil(pwaff
);
332 pwaff
= isl_pw_aff_floor(pwaff
);
335 if (isl_stream_eat(s
, ')'))
338 if (isl_stream_eat(s
, ']'))
346 isl_pw_aff_free(pwaff
);
350 static __isl_give isl_pw_aff
*accept_affine_factor(struct isl_stream
*s
,
351 __isl_take isl_space
*dim
, struct vars
*v
)
353 struct isl_token
*tok
= NULL
;
354 isl_pw_aff
*res
= NULL
;
358 isl_stream_error(s
, NULL
, "unexpected EOF");
362 if (tok
->type
== ISL_TOKEN_AFF
) {
363 res
= isl_pw_aff_copy(tok
->u
.pwaff
);
365 } else if (tok
->type
== ISL_TOKEN_IDENT
) {
367 int pos
= vars_pos(v
, tok
->u
.s
, -1);
373 isl_stream_error(s
, tok
, "unknown identifier");
377 aff
= isl_aff_zero(isl_local_space_from_space(isl_space_copy(dim
)));
380 isl_int_set_si(aff
->v
->el
[2 + pos
], 1);
381 res
= isl_pw_aff_from_aff(aff
);
383 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
384 if (isl_stream_eat_if_available(s
, '*')) {
385 res
= accept_affine_factor(s
, isl_space_copy(dim
), v
);
386 res
= isl_pw_aff_scale(res
, tok
->u
.v
);
390 ls
= isl_local_space_from_space(isl_space_copy(dim
));
391 aff
= isl_aff_zero(ls
);
392 aff
= isl_aff_add_constant(aff
, tok
->u
.v
);
393 res
= isl_pw_aff_from_aff(aff
);
396 } else if (tok
->type
== '(') {
399 res
= accept_affine(s
, isl_space_copy(dim
), v
);
402 if (isl_stream_eat(s
, ')'))
404 } else if (tok
->type
== '[' ||
405 tok
->type
== ISL_TOKEN_FLOORD
||
406 tok
->type
== ISL_TOKEN_CEILD
) {
407 isl_stream_push_token(s
, tok
);
409 res
= accept_div(s
, isl_space_copy(dim
), v
);
410 } else if (tok
->type
== ISL_TOKEN_MIN
|| tok
->type
== ISL_TOKEN_MAX
) {
411 isl_stream_push_token(s
, tok
);
413 res
= accept_minmax(s
, isl_space_copy(dim
), v
);
415 isl_stream_error(s
, tok
, "expecting factor");
418 if (isl_stream_eat_if_available(s
, '%') ||
419 isl_stream_eat_if_available(s
, ISL_TOKEN_MOD
)) {
421 return affine_mod(s
, v
, res
);
423 if (isl_stream_eat_if_available(s
, '*')) {
426 isl_int_set_si(f
, 1);
427 if (accept_cst_factor(s
, &f
) < 0) {
431 res
= isl_pw_aff_scale(res
, f
);
440 isl_pw_aff_free(res
);
445 static __isl_give isl_pw_aff
*add_cst(__isl_take isl_pw_aff
*pwaff
, isl_int v
)
449 aff
= isl_aff_zero(isl_local_space_from_space(isl_pw_aff_get_space(pwaff
)));
450 aff
= isl_aff_add_constant(aff
, v
);
452 return isl_pw_aff_add(pwaff
, isl_pw_aff_from_aff(aff
));
455 static __isl_give isl_pw_aff
*accept_affine(struct isl_stream
*s
,
456 __isl_take isl_space
*dim
, struct vars
*v
)
458 struct isl_token
*tok
= NULL
;
463 ls
= isl_local_space_from_space(isl_space_copy(dim
));
464 res
= isl_pw_aff_from_aff(isl_aff_zero(ls
));
471 isl_stream_error(s
, NULL
, "unexpected EOF");
474 if (tok
->type
== '-') {
479 if (tok
->type
== '(' || tok
->type
== '[' ||
480 tok
->type
== ISL_TOKEN_MIN
|| tok
->type
== ISL_TOKEN_MAX
||
481 tok
->type
== ISL_TOKEN_FLOORD
||
482 tok
->type
== ISL_TOKEN_CEILD
||
483 tok
->type
== ISL_TOKEN_IDENT
||
484 tok
->type
== ISL_TOKEN_AFF
) {
486 isl_stream_push_token(s
, tok
);
488 term
= accept_affine_factor(s
, isl_space_copy(dim
), v
);
490 res
= isl_pw_aff_sub(res
, term
);
492 res
= isl_pw_aff_add(res
, term
);
496 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
498 isl_int_neg(tok
->u
.v
, tok
->u
.v
);
499 if (isl_stream_eat_if_available(s
, '*') ||
500 isl_stream_next_token_is(s
, ISL_TOKEN_IDENT
)) {
502 term
= accept_affine_factor(s
,
503 isl_space_copy(dim
), v
);
504 term
= isl_pw_aff_scale(term
, tok
->u
.v
);
505 res
= isl_pw_aff_add(res
, term
);
509 res
= add_cst(res
, tok
->u
.v
);
513 isl_stream_error(s
, tok
, "unexpected isl_token");
514 isl_stream_push_token(s
, tok
);
515 isl_pw_aff_free(res
);
522 if (tok
&& tok
->type
== '-') {
525 } else if (tok
&& tok
->type
== '+') {
528 } else if (tok
&& tok
->type
== ISL_TOKEN_VALUE
&&
529 isl_int_is_neg(tok
->u
.v
)) {
530 isl_stream_push_token(s
, tok
);
533 isl_stream_push_token(s
, tok
);
543 isl_pw_aff_free(res
);
547 static int is_comparator(struct isl_token
*tok
)
565 static struct isl_map
*read_disjuncts(struct isl_stream
*s
,
566 struct vars
*v
, __isl_take isl_map
*map
);
567 static __isl_give isl_pw_aff
*accept_extended_affine(struct isl_stream
*s
,
568 __isl_take isl_space
*dim
, struct vars
*v
);
570 /* Accept a ternary operator, given the first argument.
572 static __isl_give isl_pw_aff
*accept_ternary(struct isl_stream
*s
,
573 __isl_take isl_map
*cond
, struct vars
*v
)
576 isl_pw_aff
*pwaff1
= NULL
, *pwaff2
= NULL
;
581 if (isl_stream_eat(s
, '?'))
584 dim
= isl_space_wrap(isl_map_get_space(cond
));
585 pwaff1
= accept_extended_affine(s
, dim
, v
);
589 if (isl_stream_eat(s
, ':'))
592 pwaff2
= accept_extended_affine(s
, isl_pw_aff_get_space(pwaff1
), v
);
596 return isl_pw_aff_cond(isl_map_wrap(cond
), pwaff1
, pwaff2
);
599 isl_pw_aff_free(pwaff1
);
600 isl_pw_aff_free(pwaff2
);
604 /* Accept an affine expression that may involve ternary operators.
605 * We first read an affine expression.
606 * If it is not followed by a comparison operator, we simply return it.
607 * Otherwise, we assume the affine epxression is part of the first
608 * argument of a ternary operator and try to parse that.
610 static __isl_give isl_pw_aff
*accept_extended_affine(struct isl_stream
*s
,
611 __isl_take isl_space
*dim
, struct vars
*v
)
615 struct isl_token
*tok
;
616 int line
= -1, col
= -1;
619 tok
= isl_stream_next_token(s
);
623 isl_stream_push_token(s
, tok
);
626 pwaff
= accept_affine(s
, dim
, v
);
630 tok
= isl_stream_next_token(s
);
632 return isl_pw_aff_free(pwaff
);
634 is_comp
= is_comparator(tok
);
635 isl_stream_push_token(s
, tok
);
639 tok
= isl_token_new(s
->ctx
, line
, col
, 0);
641 return isl_pw_aff_free(pwaff
);
642 tok
->type
= ISL_TOKEN_AFF
;
643 tok
->u
.pwaff
= pwaff
;
645 cond
= isl_map_universe(isl_space_unwrap(isl_pw_aff_get_space(pwaff
)));
647 isl_stream_push_token(s
, tok
);
649 cond
= read_disjuncts(s
, v
, cond
);
651 return accept_ternary(s
, cond
, v
);
654 static __isl_give isl_map
*read_var_def(struct isl_stream
*s
,
655 __isl_take isl_map
*map
, enum isl_dim_type type
, struct vars
*v
)
661 if (type
== isl_dim_param
)
662 pos
= isl_map_dim(map
, isl_dim_param
);
664 pos
= isl_map_dim(map
, isl_dim_in
);
665 if (type
== isl_dim_out
)
666 pos
+= isl_map_dim(map
, isl_dim_out
);
671 def
= accept_extended_affine(s
, isl_space_wrap(isl_map_get_space(map
)), v
);
672 def_map
= isl_map_from_pw_aff(def
);
673 def_map
= isl_map_equate(def_map
, type
, pos
, isl_dim_out
, 0);
674 def_map
= isl_set_unwrap(isl_map_domain(def_map
));
676 map
= isl_map_intersect(map
, def_map
);
681 static __isl_give isl_map
*read_var_list(struct isl_stream
*s
,
682 __isl_take isl_map
*map
, enum isl_dim_type type
, struct vars
*v
)
685 struct isl_token
*tok
;
687 if (isl_stream_next_token_is(s
, ']'))
688 return isl_map_add_dims(map
, type
, 0);
690 while ((tok
= next_token(s
)) != NULL
) {
693 if (tok
->type
== ISL_TOKEN_IDENT
) {
695 int p
= vars_pos(v
, tok
->u
.s
, -1);
702 map
= isl_map_add_dims(map
, type
, 1);
703 map
= set_name(map
, type
, i
, v
->v
->name
);
705 if (isl_stream_eat_if_available(s
, '='))
706 map
= read_var_def(s
, map
, type
, v
);
708 if (type
== isl_dim_param
) {
709 isl_stream_error(s
, tok
,
710 "expecting unique identifier");
713 isl_stream_push_token(s
, tok
);
715 if (vars_add_anon(v
) < 0)
717 map
= isl_map_add_dims(map
, type
, 1);
718 map
= read_var_def(s
, map
, type
, v
);
721 tok
= isl_stream_next_token(s
);
722 if (tok
&& tok
->type
== ']' &&
723 isl_stream_next_token_is(s
, '[')) {
725 tok
= isl_stream_next_token(s
);
726 } else if (!tok
|| tok
->type
!= ',')
733 isl_stream_push_token(s
, tok
);
742 static __isl_give isl_pw_aff_list
*accept_affine_list(struct isl_stream
*s
,
743 __isl_take isl_space
*dim
, struct vars
*v
)
746 isl_pw_aff_list
*list
;
747 struct isl_token
*tok
= NULL
;
749 pwaff
= accept_affine(s
, isl_space_copy(dim
), v
);
750 list
= isl_pw_aff_list_from_pw_aff(pwaff
);
755 tok
= isl_stream_next_token(s
);
757 isl_stream_error(s
, NULL
, "unexpected EOF");
760 if (tok
->type
!= ',') {
761 isl_stream_push_token(s
, tok
);
766 pwaff
= accept_affine(s
, isl_space_copy(dim
), v
);
767 list
= isl_pw_aff_list_concat(list
,
768 isl_pw_aff_list_from_pw_aff(pwaff
));
777 isl_pw_aff_list_free(list
);
781 static __isl_give isl_map
*read_defined_var_list(struct isl_stream
*s
,
782 struct vars
*v
, __isl_take isl_map
*map
)
784 struct isl_token
*tok
;
786 while ((tok
= isl_stream_next_token(s
)) != NULL
) {
790 if (tok
->type
!= ISL_TOKEN_IDENT
)
793 p
= vars_pos(v
, tok
->u
.s
, -1);
797 isl_stream_error(s
, tok
, "expecting unique identifier");
801 map
= isl_map_add_dims(map
, isl_dim_out
, 1);
804 tok
= isl_stream_next_token(s
);
805 if (tok
&& tok
->type
== '=') {
807 map
= read_var_def(s
, map
, isl_dim_out
, v
);
808 tok
= isl_stream_next_token(s
);
811 if (!tok
|| tok
->type
!= ',')
817 isl_stream_push_token(s
, tok
);
826 static int next_is_tuple(struct isl_stream
*s
)
828 struct isl_token
*tok
;
831 tok
= isl_stream_next_token(s
);
834 if (tok
->type
== '[') {
835 isl_stream_push_token(s
, tok
);
838 if (tok
->type
!= ISL_TOKEN_IDENT
&& !tok
->is_keyword
) {
839 isl_stream_push_token(s
, tok
);
843 is_tuple
= isl_stream_next_token_is(s
, '[');
845 isl_stream_push_token(s
, tok
);
850 static __isl_give isl_map
*read_tuple(struct isl_stream
*s
,
851 __isl_take isl_map
*map
, enum isl_dim_type type
, struct vars
*v
);
853 static __isl_give isl_set
*read_nested_tuple(struct isl_stream
*s
,
854 __isl_take isl_map
*map
, struct vars
*v
)
856 map
= read_tuple(s
, map
, isl_dim_in
, v
);
857 if (isl_stream_eat(s
, ISL_TOKEN_TO
))
859 map
= read_tuple(s
, map
, isl_dim_out
, v
);
860 return isl_map_wrap(map
);
866 static __isl_give isl_map
*read_tuple(struct isl_stream
*s
,
867 __isl_take isl_map
*map
, enum isl_dim_type type
, struct vars
*v
)
869 struct isl_token
*tok
;
872 tok
= isl_stream_next_token(s
);
873 if (tok
&& (tok
->type
== ISL_TOKEN_IDENT
|| tok
->is_keyword
)) {
874 name
= strdup(tok
->u
.s
);
878 tok
= isl_stream_next_token(s
);
880 if (!tok
|| tok
->type
!= '[') {
881 isl_stream_error(s
, tok
, "expecting '['");
885 if (type
!= isl_dim_param
&& next_is_tuple(s
)) {
886 isl_space
*dim
= isl_map_get_space(map
);
887 int nparam
= isl_space_dim(dim
, isl_dim_param
);
888 int n_in
= isl_space_dim(dim
, isl_dim_in
);
890 if (type
== isl_dim_out
) {
891 dim
= isl_space_move_dims(dim
, isl_dim_param
, nparam
,
892 isl_dim_in
, 0, n_in
);
893 dim
= isl_space_params(dim
);
895 nested
= read_nested_tuple(s
, isl_map_universe(dim
), v
);
896 if (type
== isl_dim_in
) {
897 nested
= isl_map_reverse(nested
);
898 map
= isl_map_intersect(nested
, map
);
901 dim
= isl_set_get_space(nested
);
902 dim
= isl_space_drop_dims(dim
, isl_dim_param
, nparam
, n_in
);
903 dim
= isl_space_join(isl_map_get_space(map
), dim
);
904 set
= isl_map_domain(map
);
905 nested
= isl_map_reset_space(nested
, dim
);
906 map
= isl_map_intersect_domain(nested
, set
);
909 map
= read_var_list(s
, map
, type
, v
);
910 tok
= isl_stream_next_token(s
);
911 if (!tok
|| tok
->type
!= ']') {
912 isl_stream_error(s
, tok
, "expecting ']'");
918 map
= isl_map_set_tuple_name(map
, type
, name
);
930 static __isl_give isl_set
*construct_constraints(
931 __isl_take isl_set
*set
, enum isl_token_type type
,
932 __isl_keep isl_pw_aff_list
*left
, __isl_keep isl_pw_aff_list
*right
)
936 if (type
== ISL_TOKEN_LE
)
937 cond
= isl_pw_aff_list_le_set(isl_pw_aff_list_copy(left
),
938 isl_pw_aff_list_copy(right
));
939 else if (type
== ISL_TOKEN_GE
)
940 cond
= isl_pw_aff_list_ge_set(isl_pw_aff_list_copy(left
),
941 isl_pw_aff_list_copy(right
));
942 else if (type
== ISL_TOKEN_LT
)
943 cond
= isl_pw_aff_list_lt_set(isl_pw_aff_list_copy(left
),
944 isl_pw_aff_list_copy(right
));
945 else if (type
== ISL_TOKEN_GT
)
946 cond
= isl_pw_aff_list_gt_set(isl_pw_aff_list_copy(left
),
947 isl_pw_aff_list_copy(right
));
948 else if (type
== ISL_TOKEN_NE
)
949 cond
= isl_pw_aff_list_ne_set(isl_pw_aff_list_copy(left
),
950 isl_pw_aff_list_copy(right
));
952 cond
= isl_pw_aff_list_eq_set(isl_pw_aff_list_copy(left
),
953 isl_pw_aff_list_copy(right
));
955 return isl_set_intersect(set
, cond
);
958 static __isl_give isl_map
*add_constraint(struct isl_stream
*s
,
959 struct vars
*v
, __isl_take isl_map
*map
)
961 struct isl_token
*tok
= NULL
;
962 isl_pw_aff_list
*list1
= NULL
, *list2
= NULL
;
965 set
= isl_map_wrap(map
);
966 list1
= accept_affine_list(s
, isl_set_get_space(set
), v
);
969 tok
= isl_stream_next_token(s
);
970 if (!is_comparator(tok
)) {
971 isl_stream_error(s
, tok
, "missing operator");
973 isl_stream_push_token(s
, tok
);
978 list2
= accept_affine_list(s
, isl_set_get_space(set
), v
);
982 set
= construct_constraints(set
, tok
->type
, list1
, list2
);
984 isl_pw_aff_list_free(list1
);
987 tok
= isl_stream_next_token(s
);
988 if (!is_comparator(tok
)) {
990 isl_stream_push_token(s
, tok
);
994 isl_pw_aff_list_free(list1
);
996 return isl_set_unwrap(set
);
1000 isl_pw_aff_list_free(list1
);
1001 isl_pw_aff_list_free(list2
);
1006 static __isl_give isl_map
*read_exists(struct isl_stream
*s
,
1007 struct vars
*v
, __isl_take isl_map
*map
)
1010 int seen_paren
= isl_stream_eat_if_available(s
, '(');
1012 map
= isl_map_from_domain(isl_map_wrap(map
));
1013 map
= read_defined_var_list(s
, v
, map
);
1015 if (isl_stream_eat(s
, ':'))
1018 map
= read_disjuncts(s
, v
, map
);
1019 map
= isl_set_unwrap(isl_map_domain(map
));
1021 vars_drop(v
, v
->n
- n
);
1022 if (seen_paren
&& isl_stream_eat(s
, ')'))
1031 /* Parse an expression between parentheses and push the result
1032 * back on the stream.
1034 * The parsed expression may be either an affine expression
1035 * or a condition. The first type is pushed onto the stream
1036 * as an isl_pw_aff, while the second is pushed as an isl_map.
1038 * If the initial token indicates the start of a condition,
1039 * we parse it as such.
1040 * Otherwise, we first parse an affine expression and push
1041 * that onto the stream. If the affine expression covers the
1042 * entire expression between parentheses, we return.
1043 * Otherwise, we assume that the affine expression is the
1044 * start of a condition and continue parsing.
1046 static int resolve_paren_expr(struct isl_stream
*s
,
1047 struct vars
*v
, __isl_take isl_map
*map
)
1049 struct isl_token
*tok
, *tok2
;
1053 tok
= isl_stream_next_token(s
);
1054 if (!tok
|| tok
->type
!= '(')
1057 if (isl_stream_next_token_is(s
, ISL_TOKEN_EXISTS
) ||
1058 isl_stream_next_token_is(s
, ISL_TOKEN_TRUE
) ||
1059 isl_stream_next_token_is(s
, ISL_TOKEN_FALSE
)) {
1060 map
= read_disjuncts(s
, v
, map
);
1061 if (isl_stream_eat(s
, ')'))
1063 tok
->type
= ISL_TOKEN_MAP
;
1065 isl_stream_push_token(s
, tok
);
1069 tok2
= isl_stream_next_token(s
);
1074 isl_stream_push_token(s
, tok2
);
1076 pwaff
= accept_affine(s
, isl_space_wrap(isl_map_get_space(map
)), v
);
1080 tok2
= isl_token_new(s
->ctx
, line
, col
, 0);
1083 tok2
->type
= ISL_TOKEN_AFF
;
1084 tok2
->u
.pwaff
= pwaff
;
1086 if (isl_stream_eat_if_available(s
, ')')) {
1087 isl_stream_push_token(s
, tok2
);
1088 isl_token_free(tok
);
1093 isl_stream_push_token(s
, tok2
);
1095 map
= read_disjuncts(s
, v
, map
);
1096 if (isl_stream_eat(s
, ')'))
1099 tok
->type
= ISL_TOKEN_MAP
;
1101 isl_stream_push_token(s
, tok
);
1105 isl_pw_aff_free(pwaff
);
1107 isl_token_free(tok
);
1112 static __isl_give isl_map
*read_conjunct(struct isl_stream
*s
,
1113 struct vars
*v
, __isl_take isl_map
*map
)
1115 if (isl_stream_next_token_is(s
, '('))
1116 if (resolve_paren_expr(s
, v
, isl_map_copy(map
)))
1119 if (isl_stream_next_token_is(s
, ISL_TOKEN_MAP
)) {
1120 struct isl_token
*tok
;
1121 tok
= isl_stream_next_token(s
);
1125 map
= isl_map_copy(tok
->u
.map
);
1126 isl_token_free(tok
);
1130 if (isl_stream_eat_if_available(s
, ISL_TOKEN_EXISTS
))
1131 return read_exists(s
, v
, map
);
1133 if (isl_stream_eat_if_available(s
, ISL_TOKEN_TRUE
))
1136 if (isl_stream_eat_if_available(s
, ISL_TOKEN_FALSE
)) {
1137 isl_space
*dim
= isl_map_get_space(map
);
1139 return isl_map_empty(dim
);
1142 return add_constraint(s
, v
, map
);
1148 static __isl_give isl_map
*read_conjuncts(struct isl_stream
*s
,
1149 struct vars
*v
, __isl_take isl_map
*map
)
1154 negate
= isl_stream_eat_if_available(s
, ISL_TOKEN_NOT
);
1155 res
= read_conjunct(s
, v
, isl_map_copy(map
));
1157 res
= isl_map_subtract(isl_map_copy(map
), res
);
1159 while (isl_stream_eat_if_available(s
, ISL_TOKEN_AND
)) {
1162 negate
= isl_stream_eat_if_available(s
, ISL_TOKEN_NOT
);
1163 res_i
= read_conjunct(s
, v
, isl_map_copy(map
));
1165 res
= isl_map_subtract(res
, res_i
);
1167 res
= isl_map_intersect(res
, res_i
);
1174 static struct isl_map
*read_disjuncts(struct isl_stream
*s
,
1175 struct vars
*v
, __isl_take isl_map
*map
)
1179 if (isl_stream_next_token_is(s
, '}')) {
1180 isl_space
*dim
= isl_map_get_space(map
);
1182 return isl_map_universe(dim
);
1185 res
= read_conjuncts(s
, v
, isl_map_copy(map
));
1186 while (isl_stream_eat_if_available(s
, ISL_TOKEN_OR
)) {
1189 res_i
= read_conjuncts(s
, v
, isl_map_copy(map
));
1190 res
= isl_map_union(res
, res_i
);
1197 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map
*bmap
, int pos
)
1199 if (pos
< isl_basic_map_dim(bmap
, isl_dim_out
))
1200 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
1201 isl_basic_map_dim(bmap
, isl_dim_in
) + pos
;
1202 pos
-= isl_basic_map_dim(bmap
, isl_dim_out
);
1204 if (pos
< isl_basic_map_dim(bmap
, isl_dim_in
))
1205 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) + pos
;
1206 pos
-= isl_basic_map_dim(bmap
, isl_dim_in
);
1208 if (pos
< isl_basic_map_dim(bmap
, isl_dim_div
))
1209 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
1210 isl_basic_map_dim(bmap
, isl_dim_in
) +
1211 isl_basic_map_dim(bmap
, isl_dim_out
) + pos
;
1212 pos
-= isl_basic_map_dim(bmap
, isl_dim_div
);
1214 if (pos
< isl_basic_map_dim(bmap
, isl_dim_param
))
1220 static __isl_give isl_basic_map
*basic_map_read_polylib_constraint(
1221 struct isl_stream
*s
, __isl_take isl_basic_map
*bmap
)
1224 struct isl_token
*tok
;
1234 nparam
= isl_basic_map_dim(bmap
, isl_dim_param
);
1235 dim
= isl_basic_map_dim(bmap
, isl_dim_out
);
1237 tok
= isl_stream_next_token(s
);
1238 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1239 isl_stream_error(s
, tok
, "expecting coefficient");
1241 isl_stream_push_token(s
, tok
);
1244 if (!tok
->on_new_line
) {
1245 isl_stream_error(s
, tok
, "coefficient should appear on new line");
1246 isl_stream_push_token(s
, tok
);
1250 type
= isl_int_get_si(tok
->u
.v
);
1251 isl_token_free(tok
);
1253 isl_assert(s
->ctx
, type
== 0 || type
== 1, goto error
);
1255 k
= isl_basic_map_alloc_equality(bmap
);
1258 k
= isl_basic_map_alloc_inequality(bmap
);
1264 for (j
= 0; j
< 1 + isl_basic_map_total_dim(bmap
); ++j
) {
1266 tok
= isl_stream_next_token(s
);
1267 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1268 isl_stream_error(s
, tok
, "expecting coefficient");
1270 isl_stream_push_token(s
, tok
);
1273 if (tok
->on_new_line
) {
1274 isl_stream_error(s
, tok
,
1275 "coefficient should not appear on new line");
1276 isl_stream_push_token(s
, tok
);
1279 pos
= polylib_pos_to_isl_pos(bmap
, j
);
1280 isl_int_set(c
[pos
], tok
->u
.v
);
1281 isl_token_free(tok
);
1286 isl_basic_map_free(bmap
);
1290 static __isl_give isl_basic_map
*basic_map_read_polylib(struct isl_stream
*s
,
1294 struct isl_token
*tok
;
1295 struct isl_token
*tok2
;
1298 unsigned in
= 0, out
, local
= 0;
1299 struct isl_basic_map
*bmap
= NULL
;
1304 tok
= isl_stream_next_token(s
);
1306 isl_stream_error(s
, NULL
, "unexpected EOF");
1309 tok2
= isl_stream_next_token(s
);
1311 isl_token_free(tok
);
1312 isl_stream_error(s
, NULL
, "unexpected EOF");
1315 if (tok
->type
!= ISL_TOKEN_VALUE
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
1316 isl_stream_push_token(s
, tok2
);
1317 isl_stream_push_token(s
, tok
);
1318 isl_stream_error(s
, NULL
,
1319 "expecting constraint matrix dimensions");
1322 n_row
= isl_int_get_si(tok
->u
.v
);
1323 n_col
= isl_int_get_si(tok2
->u
.v
);
1324 on_new_line
= tok2
->on_new_line
;
1325 isl_token_free(tok2
);
1326 isl_token_free(tok
);
1327 isl_assert(s
->ctx
, !on_new_line
, return NULL
);
1328 isl_assert(s
->ctx
, n_row
>= 0, return NULL
);
1329 isl_assert(s
->ctx
, n_col
>= 2 + nparam
, return NULL
);
1330 tok
= isl_stream_next_token_on_same_line(s
);
1332 if (tok
->type
!= ISL_TOKEN_VALUE
) {
1333 isl_stream_error(s
, tok
,
1334 "expecting number of output dimensions");
1335 isl_stream_push_token(s
, tok
);
1338 out
= isl_int_get_si(tok
->u
.v
);
1339 isl_token_free(tok
);
1341 tok
= isl_stream_next_token_on_same_line(s
);
1342 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1343 isl_stream_error(s
, tok
,
1344 "expecting number of input dimensions");
1346 isl_stream_push_token(s
, tok
);
1349 in
= isl_int_get_si(tok
->u
.v
);
1350 isl_token_free(tok
);
1352 tok
= isl_stream_next_token_on_same_line(s
);
1353 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1354 isl_stream_error(s
, tok
,
1355 "expecting number of existentials");
1357 isl_stream_push_token(s
, tok
);
1360 local
= isl_int_get_si(tok
->u
.v
);
1361 isl_token_free(tok
);
1363 tok
= isl_stream_next_token_on_same_line(s
);
1364 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1365 isl_stream_error(s
, tok
,
1366 "expecting number of parameters");
1368 isl_stream_push_token(s
, tok
);
1371 nparam
= isl_int_get_si(tok
->u
.v
);
1372 isl_token_free(tok
);
1373 if (n_col
!= 1 + out
+ in
+ local
+ nparam
+ 1) {
1374 isl_stream_error(s
, NULL
,
1375 "dimensions don't match");
1379 out
= n_col
- 2 - nparam
;
1380 bmap
= isl_basic_map_alloc(s
->ctx
, nparam
, in
, out
, local
, n_row
, n_row
);
1384 for (i
= 0; i
< local
; ++i
) {
1385 int k
= isl_basic_map_alloc_div(bmap
);
1388 isl_seq_clr(bmap
->div
[k
], 1 + 1 + nparam
+ in
+ out
+ local
);
1391 for (i
= 0; i
< n_row
; ++i
)
1392 bmap
= basic_map_read_polylib_constraint(s
, bmap
);
1394 tok
= isl_stream_next_token_on_same_line(s
);
1396 isl_stream_error(s
, tok
, "unexpected extra token on line");
1397 isl_stream_push_token(s
, tok
);
1401 bmap
= isl_basic_map_simplify(bmap
);
1402 bmap
= isl_basic_map_finalize(bmap
);
1405 isl_basic_map_free(bmap
);
1409 static struct isl_map
*map_read_polylib(struct isl_stream
*s
, int nparam
)
1411 struct isl_token
*tok
;
1412 struct isl_token
*tok2
;
1414 struct isl_map
*map
;
1416 tok
= isl_stream_next_token(s
);
1418 isl_stream_error(s
, NULL
, "unexpected EOF");
1421 tok2
= isl_stream_next_token_on_same_line(s
);
1422 if (tok2
&& tok2
->type
== ISL_TOKEN_VALUE
) {
1423 isl_stream_push_token(s
, tok2
);
1424 isl_stream_push_token(s
, tok
);
1425 return isl_map_from_basic_map(basic_map_read_polylib(s
, nparam
));
1428 isl_stream_error(s
, tok2
, "unexpected token");
1429 isl_stream_push_token(s
, tok2
);
1430 isl_stream_push_token(s
, tok
);
1433 n
= isl_int_get_si(tok
->u
.v
);
1434 isl_token_free(tok
);
1436 isl_assert(s
->ctx
, n
>= 1, return NULL
);
1438 map
= isl_map_from_basic_map(basic_map_read_polylib(s
, nparam
));
1440 for (i
= 1; map
&& i
< n
; ++i
)
1441 map
= isl_map_union(map
,
1442 isl_map_from_basic_map(basic_map_read_polylib(s
, nparam
)));
1447 static int optional_power(struct isl_stream
*s
)
1450 struct isl_token
*tok
;
1452 tok
= isl_stream_next_token(s
);
1455 if (tok
->type
!= '^') {
1456 isl_stream_push_token(s
, tok
);
1459 isl_token_free(tok
);
1460 tok
= isl_stream_next_token(s
);
1461 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1462 isl_stream_error(s
, tok
, "expecting exponent");
1464 isl_stream_push_token(s
, tok
);
1467 pow
= isl_int_get_si(tok
->u
.v
);
1468 isl_token_free(tok
);
1472 static __isl_give isl_pw_qpolynomial
*read_term(struct isl_stream
*s
,
1473 __isl_keep isl_map
*map
, struct vars
*v
);
1475 static __isl_give isl_pw_qpolynomial
*read_factor(struct isl_stream
*s
,
1476 __isl_keep isl_map
*map
, struct vars
*v
)
1478 isl_pw_qpolynomial
*pwqp
;
1479 struct isl_token
*tok
;
1481 tok
= next_token(s
);
1483 isl_stream_error(s
, NULL
, "unexpected EOF");
1486 if (tok
->type
== '(') {
1489 isl_token_free(tok
);
1490 pwqp
= read_term(s
, map
, v
);
1493 if (isl_stream_eat(s
, ')'))
1495 pow
= optional_power(s
);
1496 pwqp
= isl_pw_qpolynomial_pow(pwqp
, pow
);
1497 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
1498 struct isl_token
*tok2
;
1499 tok2
= isl_stream_next_token(s
);
1500 isl_qpolynomial
*qp
;
1501 if (tok2
&& tok2
->type
== '/') {
1502 isl_token_free(tok2
);
1503 tok2
= next_token(s
);
1504 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
1505 isl_stream_error(s
, tok2
, "expected denominator");
1506 isl_token_free(tok
);
1507 isl_token_free(tok2
);
1510 qp
= isl_qpolynomial_rat_cst(isl_map_get_space(map
),
1511 tok
->u
.v
, tok2
->u
.v
);
1512 isl_token_free(tok2
);
1514 isl_stream_push_token(s
, tok2
);
1515 qp
= isl_qpolynomial_cst(isl_map_get_space(map
),
1518 isl_token_free(tok
);
1519 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1520 } else if (tok
->type
== ISL_TOKEN_INFTY
) {
1521 isl_qpolynomial
*qp
;
1522 isl_token_free(tok
);
1523 qp
= isl_qpolynomial_infty(isl_map_get_space(map
));
1524 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1525 } else if (tok
->type
== ISL_TOKEN_NAN
) {
1526 isl_qpolynomial
*qp
;
1527 isl_token_free(tok
);
1528 qp
= isl_qpolynomial_nan(isl_map_get_space(map
));
1529 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1530 } else if (tok
->type
== ISL_TOKEN_IDENT
) {
1532 int pos
= vars_pos(v
, tok
->u
.s
, -1);
1534 isl_qpolynomial
*qp
;
1536 isl_token_free(tok
);
1540 vars_drop(v
, v
->n
- n
);
1541 isl_stream_error(s
, tok
, "unknown identifier");
1542 isl_token_free(tok
);
1545 isl_token_free(tok
);
1546 pow
= optional_power(s
);
1547 qp
= isl_qpolynomial_var_pow(isl_map_get_space(map
), pos
, pow
);
1548 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1549 } else if (tok
->type
== '[') {
1553 isl_stream_push_token(s
, tok
);
1554 pwaff
= accept_affine(s
, isl_map_get_space(map
), v
);
1555 pow
= optional_power(s
);
1556 pwqp
= isl_pw_qpolynomial_from_pw_aff(pwaff
);
1557 pwqp
= isl_pw_qpolynomial_pow(pwqp
, pow
);
1558 } else if (tok
->type
== '-') {
1559 isl_token_free(tok
);
1560 pwqp
= read_factor(s
, map
, v
);
1561 pwqp
= isl_pw_qpolynomial_neg(pwqp
);
1563 isl_stream_error(s
, tok
, "unexpected isl_token");
1564 isl_stream_push_token(s
, tok
);
1568 if (isl_stream_eat_if_available(s
, '*') ||
1569 isl_stream_next_token_is(s
, ISL_TOKEN_IDENT
)) {
1570 isl_pw_qpolynomial
*pwqp2
;
1572 pwqp2
= read_factor(s
, map
, v
);
1573 pwqp
= isl_pw_qpolynomial_mul(pwqp
, pwqp2
);
1578 isl_pw_qpolynomial_free(pwqp
);
1582 static __isl_give isl_pw_qpolynomial
*read_term(struct isl_stream
*s
,
1583 __isl_keep isl_map
*map
, struct vars
*v
)
1585 struct isl_token
*tok
;
1586 isl_pw_qpolynomial
*pwqp
;
1588 pwqp
= read_factor(s
, map
, v
);
1591 tok
= next_token(s
);
1595 if (tok
->type
== '+') {
1596 isl_pw_qpolynomial
*pwqp2
;
1598 isl_token_free(tok
);
1599 pwqp2
= read_factor(s
, map
, v
);
1600 pwqp
= isl_pw_qpolynomial_add(pwqp
, pwqp2
);
1601 } else if (tok
->type
== '-') {
1602 isl_pw_qpolynomial
*pwqp2
;
1604 isl_token_free(tok
);
1605 pwqp2
= read_factor(s
, map
, v
);
1606 pwqp
= isl_pw_qpolynomial_sub(pwqp
, pwqp2
);
1607 } else if (tok
->type
== ISL_TOKEN_VALUE
&&
1608 isl_int_is_neg(tok
->u
.v
)) {
1609 isl_pw_qpolynomial
*pwqp2
;
1611 isl_stream_push_token(s
, tok
);
1612 pwqp2
= read_factor(s
, map
, v
);
1613 pwqp
= isl_pw_qpolynomial_add(pwqp
, pwqp2
);
1615 isl_stream_push_token(s
, tok
);
1623 static __isl_give isl_map
*read_optional_disjuncts(struct isl_stream
*s
,
1624 __isl_take isl_map
*map
, struct vars
*v
)
1626 struct isl_token
*tok
;
1628 tok
= isl_stream_next_token(s
);
1630 isl_stream_error(s
, NULL
, "unexpected EOF");
1633 if (tok
->type
== ':' ||
1634 (tok
->type
== ISL_TOKEN_OR
&& !strcmp(tok
->u
.s
, "|"))) {
1635 isl_token_free(tok
);
1636 map
= read_disjuncts(s
, v
, map
);
1638 isl_stream_push_token(s
, tok
);
1646 static struct isl_obj
obj_read_poly(struct isl_stream
*s
,
1647 __isl_take isl_map
*map
, struct vars
*v
, int n
)
1649 struct isl_obj obj
= { isl_obj_pw_qpolynomial
, NULL
};
1650 isl_pw_qpolynomial
*pwqp
;
1651 struct isl_set
*set
;
1653 pwqp
= read_term(s
, map
, v
);
1654 map
= read_optional_disjuncts(s
, map
, v
);
1655 set
= isl_map_range(map
);
1657 pwqp
= isl_pw_qpolynomial_intersect_domain(pwqp
, set
);
1659 vars_drop(v
, v
->n
- n
);
1665 static struct isl_obj
obj_read_poly_or_fold(struct isl_stream
*s
,
1666 __isl_take isl_set
*set
, struct vars
*v
, int n
)
1668 struct isl_obj obj
= { isl_obj_pw_qpolynomial_fold
, NULL
};
1669 isl_pw_qpolynomial
*pwqp
;
1670 isl_pw_qpolynomial_fold
*pwf
= NULL
;
1672 if (!isl_stream_eat_if_available(s
, ISL_TOKEN_MAX
))
1673 return obj_read_poly(s
, set
, v
, n
);
1675 if (isl_stream_eat(s
, '('))
1678 pwqp
= read_term(s
, set
, v
);
1679 pwf
= isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max
, pwqp
);
1681 while (isl_stream_eat_if_available(s
, ',')) {
1682 isl_pw_qpolynomial_fold
*pwf_i
;
1683 pwqp
= read_term(s
, set
, v
);
1684 pwf_i
= isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max
,
1686 pwf
= isl_pw_qpolynomial_fold_fold(pwf
, pwf_i
);
1689 if (isl_stream_eat(s
, ')'))
1692 set
= read_optional_disjuncts(s
, set
, v
);
1693 pwf
= isl_pw_qpolynomial_fold_intersect_domain(pwf
, set
);
1695 vars_drop(v
, v
->n
- n
);
1701 isl_pw_qpolynomial_fold_free(pwf
);
1702 obj
.type
= isl_obj_none
;
1706 static int is_rational(struct isl_stream
*s
)
1708 struct isl_token
*tok
;
1710 tok
= isl_stream_next_token(s
);
1713 if (tok
->type
== ISL_TOKEN_RAT
&& isl_stream_next_token_is(s
, ':')) {
1714 isl_token_free(tok
);
1715 isl_stream_eat(s
, ':');
1719 isl_stream_push_token(s
, tok
);
1724 static struct isl_obj
obj_read_body(struct isl_stream
*s
,
1725 __isl_take isl_map
*map
, struct vars
*v
)
1727 struct isl_token
*tok
;
1728 struct isl_obj obj
= { isl_obj_set
, NULL
};
1732 map
= isl_map_set_rational(map
);
1734 if (isl_stream_next_token_is(s
, ':')) {
1735 obj
.type
= isl_obj_set
;
1736 obj
.v
= read_optional_disjuncts(s
, map
, v
);
1740 if (!next_is_tuple(s
))
1741 return obj_read_poly_or_fold(s
, map
, v
, n
);
1743 map
= read_tuple(s
, map
, isl_dim_in
, v
);
1746 tok
= isl_stream_next_token(s
);
1747 if (tok
&& tok
->type
== ISL_TOKEN_TO
) {
1748 obj
.type
= isl_obj_map
;
1749 isl_token_free(tok
);
1750 if (!next_is_tuple(s
)) {
1751 isl_set
*set
= isl_map_domain(map
);
1752 return obj_read_poly_or_fold(s
, set
, v
, n
);
1754 map
= read_tuple(s
, map
, isl_dim_out
, v
);
1758 map
= isl_map_reverse(map
);
1760 isl_stream_push_token(s
, tok
);
1763 map
= read_optional_disjuncts(s
, map
, v
);
1765 vars_drop(v
, v
->n
- n
);
1771 obj
.type
= isl_obj_none
;
1775 static struct isl_obj
to_union(isl_ctx
*ctx
, struct isl_obj obj
)
1777 if (obj
.type
== isl_obj_map
) {
1778 obj
.v
= isl_union_map_from_map(obj
.v
);
1779 obj
.type
= isl_obj_union_map
;
1780 } else if (obj
.type
== isl_obj_set
) {
1781 obj
.v
= isl_union_set_from_set(obj
.v
);
1782 obj
.type
= isl_obj_union_set
;
1783 } else if (obj
.type
== isl_obj_pw_qpolynomial
) {
1784 obj
.v
= isl_union_pw_qpolynomial_from_pw_qpolynomial(obj
.v
);
1785 obj
.type
= isl_obj_union_pw_qpolynomial
;
1786 } else if (obj
.type
== isl_obj_pw_qpolynomial_fold
) {
1787 obj
.v
= isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj
.v
);
1788 obj
.type
= isl_obj_union_pw_qpolynomial_fold
;
1790 isl_assert(ctx
, 0, goto error
);
1793 obj
.type
->free(obj
.v
);
1794 obj
.type
= isl_obj_none
;
1798 static struct isl_obj
obj_add(struct isl_ctx
*ctx
,
1799 struct isl_obj obj1
, struct isl_obj obj2
)
1801 if (obj1
.type
== isl_obj_set
&& obj2
.type
== isl_obj_union_set
)
1802 obj1
= to_union(ctx
, obj1
);
1803 if (obj1
.type
== isl_obj_union_set
&& obj2
.type
== isl_obj_set
)
1804 obj2
= to_union(ctx
, obj2
);
1805 if (obj1
.type
== isl_obj_map
&& obj2
.type
== isl_obj_union_map
)
1806 obj1
= to_union(ctx
, obj1
);
1807 if (obj1
.type
== isl_obj_union_map
&& obj2
.type
== isl_obj_map
)
1808 obj2
= to_union(ctx
, obj2
);
1809 if (obj1
.type
== isl_obj_pw_qpolynomial
&&
1810 obj2
.type
== isl_obj_union_pw_qpolynomial
)
1811 obj1
= to_union(ctx
, obj1
);
1812 if (obj1
.type
== isl_obj_union_pw_qpolynomial
&&
1813 obj2
.type
== isl_obj_pw_qpolynomial
)
1814 obj2
= to_union(ctx
, obj2
);
1815 if (obj1
.type
== isl_obj_pw_qpolynomial_fold
&&
1816 obj2
.type
== isl_obj_union_pw_qpolynomial_fold
)
1817 obj1
= to_union(ctx
, obj1
);
1818 if (obj1
.type
== isl_obj_union_pw_qpolynomial_fold
&&
1819 obj2
.type
== isl_obj_pw_qpolynomial_fold
)
1820 obj2
= to_union(ctx
, obj2
);
1821 isl_assert(ctx
, obj1
.type
== obj2
.type
, goto error
);
1822 if (obj1
.type
== isl_obj_map
&& !isl_map_has_equal_space(obj1
.v
, obj2
.v
)) {
1823 obj1
= to_union(ctx
, obj1
);
1824 obj2
= to_union(ctx
, obj2
);
1826 if (obj1
.type
== isl_obj_set
&& !isl_set_has_equal_space(obj1
.v
, obj2
.v
)) {
1827 obj1
= to_union(ctx
, obj1
);
1828 obj2
= to_union(ctx
, obj2
);
1830 if (obj1
.type
== isl_obj_pw_qpolynomial
&&
1831 !isl_pw_qpolynomial_has_equal_space(obj1
.v
, obj2
.v
)) {
1832 obj1
= to_union(ctx
, obj1
);
1833 obj2
= to_union(ctx
, obj2
);
1835 if (obj1
.type
== isl_obj_pw_qpolynomial_fold
&&
1836 !isl_pw_qpolynomial_fold_has_equal_space(obj1
.v
, obj2
.v
)) {
1837 obj1
= to_union(ctx
, obj1
);
1838 obj2
= to_union(ctx
, obj2
);
1840 obj1
.v
= obj1
.type
->add(obj1
.v
, obj2
.v
);
1843 obj1
.type
->free(obj1
.v
);
1844 obj2
.type
->free(obj2
.v
);
1845 obj1
.type
= isl_obj_none
;
1850 static struct isl_obj
obj_read(struct isl_stream
*s
, int nparam
)
1852 isl_map
*map
= NULL
;
1853 struct isl_token
*tok
;
1854 struct vars
*v
= NULL
;
1855 struct isl_obj obj
= { isl_obj_set
, NULL
};
1857 tok
= next_token(s
);
1859 isl_stream_error(s
, NULL
, "unexpected EOF");
1862 if (tok
->type
== ISL_TOKEN_VALUE
) {
1863 struct isl_token
*tok2
;
1864 struct isl_map
*map
;
1866 tok2
= isl_stream_next_token(s
);
1867 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
||
1868 isl_int_is_neg(tok2
->u
.v
)) {
1870 isl_stream_push_token(s
, tok2
);
1871 obj
.type
= isl_obj_int
;
1872 obj
.v
= isl_int_obj_alloc(s
->ctx
, tok
->u
.v
);
1873 isl_token_free(tok
);
1876 isl_stream_push_token(s
, tok2
);
1877 isl_stream_push_token(s
, tok
);
1878 map
= map_read_polylib(s
, nparam
);
1881 if (isl_map_may_be_set(map
))
1882 obj
.v
= isl_map_range(map
);
1884 obj
.type
= isl_obj_map
;
1889 v
= vars_new(s
->ctx
);
1891 isl_stream_push_token(s
, tok
);
1894 map
= isl_map_universe(isl_space_params_alloc(s
->ctx
, 0));
1895 if (tok
->type
== '[') {
1896 isl_stream_push_token(s
, tok
);
1897 map
= read_tuple(s
, map
, isl_dim_param
, v
);
1901 isl_assert(s
->ctx
, nparam
== v
->n
, goto error
);
1902 tok
= isl_stream_next_token(s
);
1903 if (!tok
|| tok
->type
!= ISL_TOKEN_TO
) {
1904 isl_stream_error(s
, tok
, "expecting '->'");
1906 isl_stream_push_token(s
, tok
);
1909 isl_token_free(tok
);
1910 tok
= isl_stream_next_token(s
);
1911 } else if (nparam
> 0)
1912 map
= isl_map_add_dims(map
, isl_dim_param
, nparam
);
1913 if (!tok
|| tok
->type
!= '{') {
1914 isl_stream_error(s
, tok
, "expecting '{'");
1916 isl_stream_push_token(s
, tok
);
1919 isl_token_free(tok
);
1921 tok
= isl_stream_next_token(s
);
1924 else if (tok
->type
== ISL_TOKEN_IDENT
&& !strcmp(tok
->u
.s
, "Sym")) {
1925 isl_token_free(tok
);
1926 if (isl_stream_eat(s
, '='))
1928 map
= read_tuple(s
, map
, isl_dim_param
, v
);
1932 isl_assert(s
->ctx
, nparam
== v
->n
, goto error
);
1933 } else if (tok
->type
== '}') {
1934 obj
.type
= isl_obj_union_set
;
1935 obj
.v
= isl_union_set_empty(isl_map_get_space(map
));
1936 isl_token_free(tok
);
1939 isl_stream_push_token(s
, tok
);
1944 o
= obj_read_body(s
, isl_map_copy(map
), v
);
1945 if (o
.type
== isl_obj_none
|| !o
.v
)
1950 obj
= obj_add(s
->ctx
, obj
, o
);
1951 if (obj
.type
== isl_obj_none
|| !obj
.v
)
1954 tok
= isl_stream_next_token(s
);
1955 if (!tok
|| tok
->type
!= ';')
1957 isl_token_free(tok
);
1958 if (isl_stream_next_token_is(s
, '}')) {
1959 tok
= isl_stream_next_token(s
);
1964 if (tok
&& tok
->type
== '}') {
1965 isl_token_free(tok
);
1967 isl_stream_error(s
, tok
, "unexpected isl_token");
1969 isl_token_free(tok
);
1979 obj
.type
->free(obj
.v
);
1986 struct isl_obj
isl_stream_read_obj(struct isl_stream
*s
)
1988 return obj_read(s
, -1);
1991 __isl_give isl_map
*isl_stream_read_map(struct isl_stream
*s
, int nparam
)
1995 obj
= obj_read(s
, nparam
);
1997 isl_assert(s
->ctx
, obj
.type
== isl_obj_map
||
1998 obj
.type
== isl_obj_set
, goto error
);
2002 obj
.type
->free(obj
.v
);
2006 __isl_give isl_set
*isl_stream_read_set(struct isl_stream
*s
, int nparam
)
2010 obj
= obj_read(s
, nparam
);
2012 if (obj
.type
== isl_obj_map
&& isl_map_may_be_set(obj
.v
)) {
2013 obj
.v
= isl_map_range(obj
.v
);
2014 obj
.type
= isl_obj_set
;
2016 isl_assert(s
->ctx
, obj
.type
== isl_obj_set
, goto error
);
2021 obj
.type
->free(obj
.v
);
2025 __isl_give isl_union_map
*isl_stream_read_union_map(struct isl_stream
*s
)
2029 obj
= obj_read(s
, -1);
2030 if (obj
.type
== isl_obj_map
) {
2031 obj
.type
= isl_obj_union_map
;
2032 obj
.v
= isl_union_map_from_map(obj
.v
);
2034 if (obj
.type
== isl_obj_set
) {
2035 obj
.type
= isl_obj_union_set
;
2036 obj
.v
= isl_union_set_from_set(obj
.v
);
2039 isl_assert(s
->ctx
, obj
.type
== isl_obj_union_map
||
2040 obj
.type
== isl_obj_union_set
, goto error
);
2044 obj
.type
->free(obj
.v
);
2048 __isl_give isl_union_set
*isl_stream_read_union_set(struct isl_stream
*s
)
2052 obj
= obj_read(s
, -1);
2053 if (obj
.type
== isl_obj_set
) {
2054 obj
.type
= isl_obj_union_set
;
2055 obj
.v
= isl_union_set_from_set(obj
.v
);
2058 isl_assert(s
->ctx
, obj
.type
== isl_obj_union_set
, goto error
);
2062 obj
.type
->free(obj
.v
);
2066 static struct isl_basic_map
*basic_map_read(struct isl_stream
*s
, int nparam
)
2069 struct isl_map
*map
;
2070 struct isl_basic_map
*bmap
;
2072 obj
= obj_read(s
, nparam
);
2077 isl_assert(map
->ctx
, map
->n
<= 1, goto error
);
2080 bmap
= isl_basic_map_empty_like_map(map
);
2082 bmap
= isl_basic_map_copy(map
->p
[0]);
2092 static __isl_give isl_basic_set
*basic_set_read(struct isl_stream
*s
,
2095 isl_basic_map
*bmap
;
2096 bmap
= basic_map_read(s
, nparam
);
2099 if (!isl_basic_map_may_be_set(bmap
))
2100 isl_die(s
->ctx
, isl_error_invalid
,
2101 "input is not a set", goto error
);
2102 return isl_basic_map_range(bmap
);
2104 isl_basic_map_free(bmap
);
2108 __isl_give isl_basic_map
*isl_basic_map_read_from_file(isl_ctx
*ctx
,
2109 FILE *input
, int nparam
)
2111 struct isl_basic_map
*bmap
;
2112 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2115 bmap
= basic_map_read(s
, nparam
);
2120 __isl_give isl_basic_set
*isl_basic_set_read_from_file(isl_ctx
*ctx
,
2121 FILE *input
, int nparam
)
2123 isl_basic_set
*bset
;
2124 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2127 bset
= basic_set_read(s
, nparam
);
2132 struct isl_basic_map
*isl_basic_map_read_from_str(struct isl_ctx
*ctx
,
2133 const char *str
, int nparam
)
2135 struct isl_basic_map
*bmap
;
2136 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2139 bmap
= basic_map_read(s
, nparam
);
2144 struct isl_basic_set
*isl_basic_set_read_from_str(struct isl_ctx
*ctx
,
2145 const char *str
, int nparam
)
2147 isl_basic_set
*bset
;
2148 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2151 bset
= basic_set_read(s
, nparam
);
2156 __isl_give isl_map
*isl_map_read_from_file(struct isl_ctx
*ctx
,
2157 FILE *input
, int nparam
)
2159 struct isl_map
*map
;
2160 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2163 map
= isl_stream_read_map(s
, nparam
);
2168 __isl_give isl_map
*isl_map_read_from_str(struct isl_ctx
*ctx
,
2169 const char *str
, int nparam
)
2171 struct isl_map
*map
;
2172 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2175 map
= isl_stream_read_map(s
, nparam
);
2180 __isl_give isl_set
*isl_set_read_from_file(struct isl_ctx
*ctx
,
2181 FILE *input
, int nparam
)
2184 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2187 set
= isl_stream_read_set(s
, nparam
);
2192 struct isl_set
*isl_set_read_from_str(struct isl_ctx
*ctx
,
2193 const char *str
, int nparam
)
2196 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2199 set
= isl_stream_read_set(s
, nparam
);
2204 __isl_give isl_union_map
*isl_union_map_read_from_file(isl_ctx
*ctx
,
2207 isl_union_map
*umap
;
2208 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2211 umap
= isl_stream_read_union_map(s
);
2216 __isl_give isl_union_map
*isl_union_map_read_from_str(struct isl_ctx
*ctx
,
2219 isl_union_map
*umap
;
2220 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2223 umap
= isl_stream_read_union_map(s
);
2228 __isl_give isl_union_set
*isl_union_set_read_from_file(isl_ctx
*ctx
,
2231 isl_union_set
*uset
;
2232 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2235 uset
= isl_stream_read_union_set(s
);
2240 __isl_give isl_union_set
*isl_union_set_read_from_str(struct isl_ctx
*ctx
,
2243 isl_union_set
*uset
;
2244 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2247 uset
= isl_stream_read_union_set(s
);
2252 static __isl_give isl_vec
*isl_vec_read_polylib(struct isl_stream
*s
)
2254 struct isl_vec
*vec
= NULL
;
2255 struct isl_token
*tok
;
2259 tok
= isl_stream_next_token(s
);
2260 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
2261 isl_stream_error(s
, tok
, "expecting vector length");
2265 size
= isl_int_get_si(tok
->u
.v
);
2266 isl_token_free(tok
);
2268 vec
= isl_vec_alloc(s
->ctx
, size
);
2270 for (j
= 0; j
< size
; ++j
) {
2271 tok
= isl_stream_next_token(s
);
2272 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
2273 isl_stream_error(s
, tok
, "expecting constant value");
2276 isl_int_set(vec
->el
[j
], tok
->u
.v
);
2277 isl_token_free(tok
);
2282 isl_token_free(tok
);
2287 static __isl_give isl_vec
*vec_read(struct isl_stream
*s
)
2289 return isl_vec_read_polylib(s
);
2292 __isl_give isl_vec
*isl_vec_read_from_file(isl_ctx
*ctx
, FILE *input
)
2295 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2303 __isl_give isl_pw_qpolynomial
*isl_stream_read_pw_qpolynomial(
2304 struct isl_stream
*s
)
2308 obj
= obj_read(s
, -1);
2310 isl_assert(s
->ctx
, obj
.type
== isl_obj_pw_qpolynomial
,
2315 obj
.type
->free(obj
.v
);
2319 __isl_give isl_pw_qpolynomial
*isl_pw_qpolynomial_read_from_str(isl_ctx
*ctx
,
2322 isl_pw_qpolynomial
*pwqp
;
2323 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2326 pwqp
= isl_stream_read_pw_qpolynomial(s
);
2331 __isl_give isl_pw_qpolynomial
*isl_pw_qpolynomial_read_from_file(isl_ctx
*ctx
,
2334 isl_pw_qpolynomial
*pwqp
;
2335 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2338 pwqp
= isl_stream_read_pw_qpolynomial(s
);