2 * Copyright 2008-2009 Katholieke Universiteit Leuven
3 * Copyright 2010 INRIA Saclay
4 * Copyright 2012 Ecole Normale Superieure
6 * Use of this software is governed by the MIT license
8 * Written by Sven Verdoolaege, K.U.Leuven, Departement
9 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
10 * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
11 * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
12 * and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
18 #include <isl_ctx_private.h>
19 #include <isl_map_private.h>
22 #include <isl_stream_private.h>
24 #include "isl_polynomial_private.h"
25 #include <isl/union_map.h>
26 #include <isl_mat_private.h>
27 #include <isl_aff_private.h>
33 struct variable
*next
;
42 static struct vars
*vars_new(struct isl_ctx
*ctx
)
45 v
= isl_alloc_type(ctx
, struct vars
);
54 static void variable_free(struct variable
*var
)
57 struct variable
*next
= var
->next
;
64 static void vars_free(struct vars
*v
)
72 static void vars_drop(struct vars
*v
, int n
)
83 struct variable
*next
= var
->next
;
91 static struct variable
*variable_new(struct vars
*v
, const char *name
, int len
,
95 var
= isl_calloc_type(v
->ctx
, struct variable
);
98 var
->name
= strdup(name
);
99 var
->name
[len
] = '\0';
108 static int vars_pos(struct vars
*v
, const char *s
, int len
)
115 for (q
= v
->v
; q
; q
= q
->next
) {
116 if (strncmp(q
->name
, s
, len
) == 0 && q
->name
[len
] == '\0')
123 v
->v
= variable_new(v
, s
, len
, v
->n
);
131 static int vars_add_anon(struct vars
*v
)
133 v
->v
= variable_new(v
, "", 0, v
->n
);
142 /* Obtain next token, with some preprocessing.
143 * In particular, evaluate expressions of the form x^y,
144 * with x and y values.
146 static struct isl_token
*next_token(struct isl_stream
*s
)
148 struct isl_token
*tok
, *tok2
;
150 tok
= isl_stream_next_token(s
);
151 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
)
153 if (!isl_stream_eat_if_available(s
, '^'))
155 tok2
= isl_stream_next_token(s
);
156 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
157 isl_stream_error(s
, tok2
, "expecting constant value");
161 isl_int_pow_ui(tok
->u
.v
, tok
->u
.v
, isl_int_get_ui(tok2
->u
.v
));
163 isl_token_free(tok2
);
167 isl_token_free(tok2
);
171 static int accept_cst_factor(struct isl_stream
*s
, isl_int
*f
)
173 struct isl_token
*tok
;
176 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
177 isl_stream_error(s
, tok
, "expecting constant value");
181 isl_int_mul(*f
, *f
, tok
->u
.v
);
185 if (isl_stream_eat_if_available(s
, '*'))
186 return accept_cst_factor(s
, f
);
194 /* Given an affine expression aff, return an affine expression
195 * for aff % d, with d the next token on the stream, which is
196 * assumed to be a constant.
198 * We introduce an integer division q = [aff/d] and the result
199 * is set to aff - d q.
201 static __isl_give isl_pw_aff
*affine_mod(struct isl_stream
*s
,
202 struct vars
*v
, __isl_take isl_pw_aff
*aff
)
204 struct isl_token
*tok
;
208 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
209 isl_stream_error(s
, tok
, "expecting constant value");
213 q
= isl_pw_aff_copy(aff
);
214 q
= isl_pw_aff_scale_down(q
, tok
->u
.v
);
215 q
= isl_pw_aff_floor(q
);
216 q
= isl_pw_aff_scale(q
, tok
->u
.v
);
218 aff
= isl_pw_aff_sub(aff
, q
);
223 isl_pw_aff_free(aff
);
228 static __isl_give isl_pw_aff
*accept_affine(struct isl_stream
*s
,
229 __isl_take isl_space
*dim
, struct vars
*v
);
230 static __isl_give isl_pw_aff_list
*accept_affine_list(struct isl_stream
*s
,
231 __isl_take isl_space
*dim
, struct vars
*v
);
233 static __isl_give isl_pw_aff
*accept_minmax(struct isl_stream
*s
,
234 __isl_take isl_space
*dim
, struct vars
*v
)
236 struct isl_token
*tok
;
237 isl_pw_aff_list
*list
= NULL
;
240 tok
= isl_stream_next_token(s
);
243 min
= tok
->type
== ISL_TOKEN_MIN
;
246 if (isl_stream_eat(s
, '('))
249 list
= accept_affine_list(s
, isl_space_copy(dim
), v
);
253 if (isl_stream_eat(s
, ')'))
257 return min
? isl_pw_aff_list_min(list
) : isl_pw_aff_list_max(list
);
260 isl_pw_aff_list_free(list
);
264 static __isl_give isl_pw_aff
*accept_div(struct isl_stream
*s
,
265 __isl_take isl_space
*dim
, struct vars
*v
)
267 struct isl_token
*tok
;
270 isl_pw_aff
*pwaff
= NULL
;
272 if (isl_stream_eat_if_available(s
, ISL_TOKEN_FLOORD
))
274 else if (isl_stream_eat_if_available(s
, ISL_TOKEN_CEILD
))
277 if (isl_stream_eat(s
, '('))
280 if (isl_stream_eat(s
, '['))
284 pwaff
= accept_affine(s
, isl_space_copy(dim
), v
);
287 if (isl_stream_eat(s
, ','))
293 if (tok
->type
!= ISL_TOKEN_VALUE
) {
294 isl_stream_error(s
, tok
, "expected denominator");
295 isl_stream_push_token(s
, tok
);
298 isl_pw_aff_scale_down(pwaff
, tok
->u
.v
);
303 pwaff
= isl_pw_aff_ceil(pwaff
);
305 pwaff
= isl_pw_aff_floor(pwaff
);
308 if (isl_stream_eat(s
, ')'))
311 if (isl_stream_eat(s
, ']'))
319 isl_pw_aff_free(pwaff
);
323 static __isl_give isl_pw_aff
*accept_affine_factor(struct isl_stream
*s
,
324 __isl_take isl_space
*dim
, struct vars
*v
)
326 struct isl_token
*tok
= NULL
;
327 isl_pw_aff
*res
= NULL
;
331 isl_stream_error(s
, NULL
, "unexpected EOF");
335 if (tok
->type
== ISL_TOKEN_AFF
) {
336 res
= isl_pw_aff_copy(tok
->u
.pwaff
);
338 } else if (tok
->type
== ISL_TOKEN_IDENT
) {
340 int pos
= vars_pos(v
, tok
->u
.s
, -1);
346 isl_stream_error(s
, tok
, "unknown identifier");
350 aff
= isl_aff_zero_on_domain(isl_local_space_from_space(isl_space_copy(dim
)));
353 isl_int_set_si(aff
->v
->el
[2 + pos
], 1);
354 res
= isl_pw_aff_from_aff(aff
);
356 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
357 if (isl_stream_eat_if_available(s
, '*')) {
358 res
= accept_affine_factor(s
, isl_space_copy(dim
), v
);
359 res
= isl_pw_aff_scale(res
, tok
->u
.v
);
363 ls
= isl_local_space_from_space(isl_space_copy(dim
));
364 aff
= isl_aff_zero_on_domain(ls
);
365 aff
= isl_aff_add_constant(aff
, tok
->u
.v
);
366 res
= isl_pw_aff_from_aff(aff
);
369 } else if (tok
->type
== '(') {
372 res
= accept_affine(s
, isl_space_copy(dim
), v
);
375 if (isl_stream_eat(s
, ')'))
377 } else if (tok
->type
== '[' ||
378 tok
->type
== ISL_TOKEN_FLOORD
||
379 tok
->type
== ISL_TOKEN_CEILD
) {
380 isl_stream_push_token(s
, tok
);
382 res
= accept_div(s
, isl_space_copy(dim
), v
);
383 } else if (tok
->type
== ISL_TOKEN_MIN
|| tok
->type
== ISL_TOKEN_MAX
) {
384 isl_stream_push_token(s
, tok
);
386 res
= accept_minmax(s
, isl_space_copy(dim
), v
);
388 isl_stream_error(s
, tok
, "expecting factor");
391 if (isl_stream_eat_if_available(s
, '%') ||
392 isl_stream_eat_if_available(s
, ISL_TOKEN_MOD
)) {
394 return affine_mod(s
, v
, res
);
396 if (isl_stream_eat_if_available(s
, '*')) {
399 isl_int_set_si(f
, 1);
400 if (accept_cst_factor(s
, &f
) < 0) {
404 res
= isl_pw_aff_scale(res
, f
);
407 if (isl_stream_eat_if_available(s
, '/')) {
410 isl_int_set_si(f
, 1);
411 if (accept_cst_factor(s
, &f
) < 0) {
415 res
= isl_pw_aff_scale_down(res
, f
);
424 isl_pw_aff_free(res
);
429 static __isl_give isl_pw_aff
*add_cst(__isl_take isl_pw_aff
*pwaff
, isl_int v
)
434 space
= isl_pw_aff_get_domain_space(pwaff
);
435 aff
= isl_aff_zero_on_domain(isl_local_space_from_space(space
));
436 aff
= isl_aff_add_constant(aff
, v
);
438 return isl_pw_aff_add(pwaff
, isl_pw_aff_from_aff(aff
));
441 static __isl_give isl_pw_aff
*accept_affine(struct isl_stream
*s
,
442 __isl_take isl_space
*dim
, struct vars
*v
)
444 struct isl_token
*tok
= NULL
;
449 ls
= isl_local_space_from_space(isl_space_copy(dim
));
450 res
= isl_pw_aff_from_aff(isl_aff_zero_on_domain(ls
));
457 isl_stream_error(s
, NULL
, "unexpected EOF");
460 if (tok
->type
== '-') {
465 if (tok
->type
== '(' || tok
->type
== '[' ||
466 tok
->type
== ISL_TOKEN_MIN
|| tok
->type
== ISL_TOKEN_MAX
||
467 tok
->type
== ISL_TOKEN_FLOORD
||
468 tok
->type
== ISL_TOKEN_CEILD
||
469 tok
->type
== ISL_TOKEN_IDENT
||
470 tok
->type
== ISL_TOKEN_AFF
) {
472 isl_stream_push_token(s
, tok
);
474 term
= accept_affine_factor(s
, isl_space_copy(dim
), v
);
476 res
= isl_pw_aff_sub(res
, term
);
478 res
= isl_pw_aff_add(res
, term
);
482 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
484 isl_int_neg(tok
->u
.v
, tok
->u
.v
);
485 if (isl_stream_eat_if_available(s
, '*') ||
486 isl_stream_next_token_is(s
, ISL_TOKEN_IDENT
)) {
488 term
= accept_affine_factor(s
,
489 isl_space_copy(dim
), v
);
490 term
= isl_pw_aff_scale(term
, tok
->u
.v
);
491 res
= isl_pw_aff_add(res
, term
);
495 res
= add_cst(res
, tok
->u
.v
);
499 isl_stream_error(s
, tok
, "unexpected isl_token");
500 isl_stream_push_token(s
, tok
);
501 isl_pw_aff_free(res
);
508 if (tok
&& tok
->type
== '-') {
511 } else if (tok
&& tok
->type
== '+') {
514 } else if (tok
&& tok
->type
== ISL_TOKEN_VALUE
&&
515 isl_int_is_neg(tok
->u
.v
)) {
516 isl_stream_push_token(s
, tok
);
519 isl_stream_push_token(s
, tok
);
529 isl_pw_aff_free(res
);
533 static int is_comparator(struct isl_token
*tok
)
551 static struct isl_map
*read_disjuncts(struct isl_stream
*s
,
552 struct vars
*v
, __isl_take isl_map
*map
, int rational
);
553 static __isl_give isl_pw_aff
*accept_extended_affine(struct isl_stream
*s
,
554 __isl_take isl_space
*dim
, struct vars
*v
, int rational
);
556 /* Accept a ternary operator, given the first argument.
558 static __isl_give isl_pw_aff
*accept_ternary(struct isl_stream
*s
,
559 __isl_take isl_map
*cond
, struct vars
*v
, int rational
)
562 isl_pw_aff
*pwaff1
= NULL
, *pwaff2
= NULL
, *pa_cond
;
567 if (isl_stream_eat(s
, '?'))
570 dim
= isl_space_wrap(isl_map_get_space(cond
));
571 pwaff1
= accept_extended_affine(s
, dim
, v
, rational
);
575 if (isl_stream_eat(s
, ':'))
578 dim
= isl_pw_aff_get_domain_space(pwaff1
);
579 pwaff2
= accept_extended_affine(s
, dim
, v
, rational
);
583 pa_cond
= isl_set_indicator_function(isl_map_wrap(cond
));
584 return isl_pw_aff_cond(pa_cond
, pwaff1
, pwaff2
);
587 isl_pw_aff_free(pwaff1
);
588 isl_pw_aff_free(pwaff2
);
592 /* Accept an affine expression that may involve ternary operators.
593 * We first read an affine expression.
594 * If it is not followed by a comparison operator, we simply return it.
595 * Otherwise, we assume the affine epxression is part of the first
596 * argument of a ternary operator and try to parse that.
598 static __isl_give isl_pw_aff
*accept_extended_affine(struct isl_stream
*s
,
599 __isl_take isl_space
*dim
, struct vars
*v
, int rational
)
604 struct isl_token
*tok
;
605 int line
= -1, col
= -1;
608 tok
= isl_stream_next_token(s
);
612 isl_stream_push_token(s
, tok
);
615 pwaff
= accept_affine(s
, dim
, v
);
617 pwaff
= isl_pw_aff_set_rational(pwaff
);
621 tok
= isl_stream_next_token(s
);
623 return isl_pw_aff_free(pwaff
);
625 is_comp
= is_comparator(tok
);
626 isl_stream_push_token(s
, tok
);
630 tok
= isl_token_new(s
->ctx
, line
, col
, 0);
632 return isl_pw_aff_free(pwaff
);
633 tok
->type
= ISL_TOKEN_AFF
;
634 tok
->u
.pwaff
= pwaff
;
636 space
= isl_pw_aff_get_domain_space(pwaff
);
637 cond
= isl_map_universe(isl_space_unwrap(space
));
639 isl_stream_push_token(s
, tok
);
641 cond
= read_disjuncts(s
, v
, cond
, rational
);
643 return accept_ternary(s
, cond
, v
, rational
);
646 static __isl_give isl_map
*read_var_def(struct isl_stream
*s
,
647 __isl_take isl_map
*map
, enum isl_dim_type type
, struct vars
*v
,
654 if (type
== isl_dim_param
)
655 pos
= isl_map_dim(map
, isl_dim_param
);
657 pos
= isl_map_dim(map
, isl_dim_in
);
658 if (type
== isl_dim_out
)
659 pos
+= isl_map_dim(map
, isl_dim_out
);
664 def
= accept_extended_affine(s
, isl_space_wrap(isl_map_get_space(map
)),
666 def_map
= isl_map_from_pw_aff(def
);
667 def_map
= isl_map_equate(def_map
, type
, pos
, isl_dim_out
, 0);
668 def_map
= isl_set_unwrap(isl_map_domain(def_map
));
670 map
= isl_map_intersect(map
, def_map
);
675 static __isl_give isl_pw_aff_list
*accept_affine_list(struct isl_stream
*s
,
676 __isl_take isl_space
*dim
, struct vars
*v
)
679 isl_pw_aff_list
*list
;
680 struct isl_token
*tok
= NULL
;
682 pwaff
= accept_affine(s
, isl_space_copy(dim
), v
);
683 list
= isl_pw_aff_list_from_pw_aff(pwaff
);
688 tok
= isl_stream_next_token(s
);
690 isl_stream_error(s
, NULL
, "unexpected EOF");
693 if (tok
->type
!= ',') {
694 isl_stream_push_token(s
, tok
);
699 pwaff
= accept_affine(s
, isl_space_copy(dim
), v
);
700 list
= isl_pw_aff_list_concat(list
,
701 isl_pw_aff_list_from_pw_aff(pwaff
));
710 isl_pw_aff_list_free(list
);
714 static __isl_give isl_map
*read_defined_var_list(struct isl_stream
*s
,
715 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
717 struct isl_token
*tok
;
719 while ((tok
= isl_stream_next_token(s
)) != NULL
) {
723 if (tok
->type
!= ISL_TOKEN_IDENT
)
726 p
= vars_pos(v
, tok
->u
.s
, -1);
730 isl_stream_error(s
, tok
, "expecting unique identifier");
734 map
= isl_map_add_dims(map
, isl_dim_out
, 1);
737 tok
= isl_stream_next_token(s
);
738 if (tok
&& tok
->type
== '=') {
740 map
= read_var_def(s
, map
, isl_dim_out
, v
, rational
);
741 tok
= isl_stream_next_token(s
);
744 if (!tok
|| tok
->type
!= ',')
750 isl_stream_push_token(s
, tok
);
759 static int next_is_tuple(struct isl_stream
*s
)
761 struct isl_token
*tok
;
764 tok
= isl_stream_next_token(s
);
767 if (tok
->type
== '[') {
768 isl_stream_push_token(s
, tok
);
771 if (tok
->type
!= ISL_TOKEN_IDENT
&& !tok
->is_keyword
) {
772 isl_stream_push_token(s
, tok
);
776 is_tuple
= isl_stream_next_token_is(s
, '[');
778 isl_stream_push_token(s
, tok
);
783 /* Allocate an initial tuple with zero dimensions and an anonymous,
784 * unstructured space.
785 * A tuple is represented as an isl_multi_pw_aff.
786 * The range space is the space of the tuple.
787 * The domain space is an anonymous space
788 * with a dimension for each variable in the set of variables in "v".
789 * If a given dimension is not defined in terms of earlier dimensions in
790 * the input, then the corresponding isl_pw_aff is set equal to one time
791 * the variable corresponding to the dimension being defined.
793 static __isl_give isl_multi_pw_aff
*tuple_alloc(struct vars
*v
)
795 return isl_multi_pw_aff_alloc(isl_space_alloc(v
->ctx
, 0, v
->n
, 0));
798 /* Is "pa" an expression in term of earlier dimensions?
799 * The alternative is that the dimension is defined to be equal to itself,
800 * meaning that it has a universe domain and an expression that depends
801 * on itself. "i" is the position of the expression in a sequence
802 * of "n" expressions. The final dimensions of "pa" correspond to
803 * these "n" expressions.
805 static int pw_aff_is_expr(__isl_keep isl_pw_aff
*pa
, int i
, int n
)
813 if (!isl_set_plain_is_universe(pa
->p
[0].set
))
817 if (isl_int_is_zero(aff
->v
->el
[aff
->v
->size
- n
+ i
]))
822 /* Does the tuple contain any dimensions that are defined
823 * in terms of earlier dimensions?
825 static int tuple_has_expr(__isl_keep isl_multi_pw_aff
*tuple
)
833 n
= isl_multi_pw_aff_dim(tuple
, isl_dim_out
);
834 for (i
= 0; i
< n
; ++i
) {
835 pa
= isl_multi_pw_aff_get_pw_aff(tuple
, i
);
836 has_expr
= pw_aff_is_expr(pa
, i
, n
);
838 if (has_expr
< 0 || has_expr
)
845 /* Add a dimension to the given tuple.
846 * The dimension is initially undefined, so it is encoded
847 * as one times itself.
849 static __isl_give isl_multi_pw_aff
*tuple_add_dim(
850 __isl_take isl_multi_pw_aff
*tuple
, struct vars
*v
)
856 tuple
= isl_multi_pw_aff_add_dims(tuple
, isl_dim_in
, 1);
857 space
= isl_multi_pw_aff_get_domain_space(tuple
);
858 aff
= isl_aff_zero_on_domain(isl_local_space_from_space(space
));
859 aff
= isl_aff_add_coefficient_si(aff
, isl_dim_in
, v
->n
, 1);
860 pa
= isl_pw_aff_from_aff(aff
);
861 tuple
= isl_multi_pw_aff_flat_range_product(tuple
,
862 isl_multi_pw_aff_from_pw_aff(pa
));
867 /* Set the name of dimension "pos" in "tuple" to "name".
868 * During printing, we add primes if the same name appears more than once
869 * to distinguish the occurrences. Here, we remove those primes from "name"
870 * before setting the name of the dimension.
872 static __isl_give isl_multi_pw_aff
*tuple_set_dim_name(
873 __isl_take isl_multi_pw_aff
*tuple
, int pos
, char *name
)
880 prime
= strchr(name
, '\'');
883 tuple
= isl_multi_pw_aff_set_dim_name(tuple
, isl_dim_set
, pos
, name
);
890 /* Read an affine expression from "s" and replace the definition
891 * of dimension "pos" in "tuple" by this expression.
893 * accept_extended_affine requires a wrapped space as input.
894 * The domain space of "tuple", on the other hand is an anonymous space,
895 * so we have to adjust the space of the isl_pw_aff before adding it
898 static __isl_give isl_multi_pw_aff
*read_tuple_var_def(struct isl_stream
*s
,
899 __isl_take isl_multi_pw_aff
*tuple
, int pos
, struct vars
*v
,
905 space
= isl_space_wrap(isl_space_alloc(s
->ctx
, 0, v
->n
, 0));
906 def
= accept_extended_affine(s
, space
, v
, rational
);
907 space
= isl_space_set_alloc(s
->ctx
, 0, v
->n
);
908 def
= isl_pw_aff_reset_domain_space(def
, space
);
909 tuple
= isl_multi_pw_aff_set_pw_aff(tuple
, pos
, def
);
914 /* Read a list of variables and/or affine expressions and return the list
915 * as an isl_multi_pw_aff.
916 * The elements in the list are separated by either "," or "][".
917 * If "comma" is set then only "," is allowed.
919 static __isl_give isl_multi_pw_aff
*read_tuple_var_list(struct isl_stream
*s
,
920 struct vars
*v
, int rational
, int comma
)
923 struct isl_token
*tok
;
924 isl_multi_pw_aff
*res
;
926 res
= tuple_alloc(v
);
928 if (isl_stream_next_token_is(s
, ']'))
931 while ((tok
= next_token(s
)) != NULL
) {
934 res
= tuple_add_dim(res
, v
);
936 if (tok
->type
== ISL_TOKEN_IDENT
) {
938 int p
= vars_pos(v
, tok
->u
.s
, -1);
945 res
= tuple_set_dim_name(res
, i
, v
->v
->name
);
947 if (isl_stream_eat_if_available(s
, '='))
948 res
= read_tuple_var_def(s
, res
, i
, v
,
951 isl_stream_push_token(s
, tok
);
953 if (vars_add_anon(v
) < 0)
955 res
= read_tuple_var_def(s
, res
, i
, v
, rational
);
958 tok
= isl_stream_next_token(s
);
959 if (!comma
&& tok
&& tok
->type
== ']' &&
960 isl_stream_next_token_is(s
, '[')) {
962 tok
= isl_stream_next_token(s
);
963 } else if (!tok
|| tok
->type
!= ',')
970 isl_stream_push_token(s
, tok
);
975 return isl_multi_pw_aff_free(res
);
978 /* Read a tuple and represent it as an isl_multi_pw_aff. See tuple_alloc.
980 static __isl_give isl_multi_pw_aff
*read_tuple(struct isl_stream
*s
,
981 struct vars
*v
, int rational
, int comma
)
983 struct isl_token
*tok
;
985 isl_multi_pw_aff
*res
= NULL
;
987 tok
= isl_stream_next_token(s
);
990 if (tok
->type
== ISL_TOKEN_IDENT
|| tok
->is_keyword
) {
991 name
= strdup(tok
->u
.s
);
996 isl_stream_push_token(s
, tok
);
997 if (isl_stream_eat(s
, '['))
999 if (next_is_tuple(s
)) {
1000 isl_multi_pw_aff
*out
;
1002 res
= read_tuple(s
, v
, rational
, comma
);
1003 if (isl_stream_eat(s
, ISL_TOKEN_TO
))
1005 out
= read_tuple(s
, v
, rational
, comma
);
1006 n
= isl_multi_pw_aff_dim(out
, isl_dim_out
);
1007 res
= isl_multi_pw_aff_add_dims(res
, isl_dim_in
, n
);
1008 res
= isl_multi_pw_aff_range_product(res
, out
);
1010 res
= read_tuple_var_list(s
, v
, rational
, comma
);
1011 if (isl_stream_eat(s
, ']'))
1015 res
= isl_multi_pw_aff_set_tuple_name(res
, isl_dim_out
, name
);
1022 return isl_multi_pw_aff_free(res
);
1025 /* Read a tuple from "s" and add it to "map".
1026 * The tuple is initially represented as an isl_multi_pw_aff.
1027 * We first create the appropriate space in "map" based on the range
1028 * space of this isl_multi_pw_aff. Then, we add equalities based
1029 * on the affine expressions. These live in an anonymous space,
1030 * however, so we first need to reset the space to that of "map".
1032 static __isl_give isl_map
*read_map_tuple(struct isl_stream
*s
,
1033 __isl_take isl_map
*map
, enum isl_dim_type type
, struct vars
*v
,
1034 int rational
, int comma
)
1037 isl_multi_pw_aff
*tuple
;
1038 isl_space
*space
= NULL
;
1040 tuple
= read_tuple(s
, v
, rational
, comma
);
1044 n
= isl_multi_pw_aff_dim(tuple
, isl_dim_out
);
1045 space
= isl_space_range(isl_multi_pw_aff_get_space(tuple
));
1049 if (type
== isl_dim_param
) {
1050 if (isl_space_has_tuple_name(space
, isl_dim_set
) ||
1051 isl_space_is_wrapping(space
)) {
1052 isl_die(s
->ctx
, isl_error_invalid
,
1053 "parameter tuples cannot be named or nested",
1056 map
= isl_map_add_dims(map
, type
, n
);
1057 for (i
= 0; i
< n
; ++i
) {
1059 if (!isl_space_has_dim_name(space
, isl_dim_set
, i
))
1060 isl_die(s
->ctx
, isl_error_invalid
,
1061 "parameters must be named",
1063 id
= isl_space_get_dim_id(space
, isl_dim_set
, i
);
1064 map
= isl_map_set_dim_id(map
, isl_dim_param
, i
, id
);
1066 } else if (type
== isl_dim_in
) {
1069 set
= isl_set_universe(isl_space_copy(space
));
1071 set
= isl_set_set_rational(set
);
1072 set
= isl_set_intersect_params(set
, isl_map_params(map
));
1073 map
= isl_map_from_domain(set
);
1077 set
= isl_set_universe(isl_space_copy(space
));
1079 set
= isl_set_set_rational(set
);
1080 map
= isl_map_from_domain_and_range(isl_map_domain(map
), set
);
1083 for (i
= 0; i
< n
; ++i
) {
1090 pa
= isl_multi_pw_aff_get_pw_aff(tuple
, i
);
1091 space
= isl_pw_aff_get_domain_space(pa
);
1092 aff
= isl_aff_zero_on_domain(isl_local_space_from_space(space
));
1093 aff
= isl_aff_add_coefficient_si(aff
,
1094 isl_dim_in
, v
->n
- n
+ i
, -1);
1095 pa
= isl_pw_aff_add(pa
, isl_pw_aff_from_aff(aff
));
1097 pa
= isl_pw_aff_set_rational(pa
);
1098 set
= isl_pw_aff_zero_set(pa
);
1099 map_i
= isl_map_from_range(set
);
1100 map_i
= isl_map_reset_space(map_i
, isl_map_get_space(map
));
1101 map
= isl_map_intersect(map
, map_i
);
1104 isl_space_free(space
);
1105 isl_multi_pw_aff_free(tuple
);
1108 isl_space_free(space
);
1109 isl_multi_pw_aff_free(tuple
);
1114 static __isl_give isl_set
*construct_constraints(
1115 __isl_take isl_set
*set
, int type
,
1116 __isl_keep isl_pw_aff_list
*left
, __isl_keep isl_pw_aff_list
*right
,
1122 left
= isl_pw_aff_list_set_rational(left
);
1123 right
= isl_pw_aff_list_set_rational(right
);
1125 if (type
== ISL_TOKEN_LE
)
1126 cond
= isl_pw_aff_list_le_set(isl_pw_aff_list_copy(left
),
1127 isl_pw_aff_list_copy(right
));
1128 else if (type
== ISL_TOKEN_GE
)
1129 cond
= isl_pw_aff_list_ge_set(isl_pw_aff_list_copy(left
),
1130 isl_pw_aff_list_copy(right
));
1131 else if (type
== ISL_TOKEN_LT
)
1132 cond
= isl_pw_aff_list_lt_set(isl_pw_aff_list_copy(left
),
1133 isl_pw_aff_list_copy(right
));
1134 else if (type
== ISL_TOKEN_GT
)
1135 cond
= isl_pw_aff_list_gt_set(isl_pw_aff_list_copy(left
),
1136 isl_pw_aff_list_copy(right
));
1137 else if (type
== ISL_TOKEN_NE
)
1138 cond
= isl_pw_aff_list_ne_set(isl_pw_aff_list_copy(left
),
1139 isl_pw_aff_list_copy(right
));
1141 cond
= isl_pw_aff_list_eq_set(isl_pw_aff_list_copy(left
),
1142 isl_pw_aff_list_copy(right
));
1144 return isl_set_intersect(set
, cond
);
1147 static __isl_give isl_map
*add_constraint(struct isl_stream
*s
,
1148 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1150 struct isl_token
*tok
= NULL
;
1151 isl_pw_aff_list
*list1
= NULL
, *list2
= NULL
;
1154 set
= isl_map_wrap(map
);
1155 list1
= accept_affine_list(s
, isl_set_get_space(set
), v
);
1158 tok
= isl_stream_next_token(s
);
1159 if (!is_comparator(tok
)) {
1160 isl_stream_error(s
, tok
, "missing operator");
1162 isl_stream_push_token(s
, tok
);
1167 list2
= accept_affine_list(s
, isl_set_get_space(set
), v
);
1171 set
= construct_constraints(set
, tok
->type
, list1
, list2
,
1173 isl_token_free(tok
);
1174 isl_pw_aff_list_free(list1
);
1177 tok
= isl_stream_next_token(s
);
1178 if (!is_comparator(tok
)) {
1180 isl_stream_push_token(s
, tok
);
1184 isl_pw_aff_list_free(list1
);
1186 return isl_set_unwrap(set
);
1189 isl_token_free(tok
);
1190 isl_pw_aff_list_free(list1
);
1191 isl_pw_aff_list_free(list2
);
1196 static __isl_give isl_map
*read_exists(struct isl_stream
*s
,
1197 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1200 int seen_paren
= isl_stream_eat_if_available(s
, '(');
1202 map
= isl_map_from_domain(isl_map_wrap(map
));
1203 map
= read_defined_var_list(s
, v
, map
, rational
);
1205 if (isl_stream_eat(s
, ':'))
1208 map
= read_disjuncts(s
, v
, map
, rational
);
1209 map
= isl_set_unwrap(isl_map_domain(map
));
1211 vars_drop(v
, v
->n
- n
);
1212 if (seen_paren
&& isl_stream_eat(s
, ')'))
1221 /* Parse an expression between parentheses and push the result
1222 * back on the stream.
1224 * The parsed expression may be either an affine expression
1225 * or a condition. The first type is pushed onto the stream
1226 * as an isl_pw_aff, while the second is pushed as an isl_map.
1228 * If the initial token indicates the start of a condition,
1229 * we parse it as such.
1230 * Otherwise, we first parse an affine expression and push
1231 * that onto the stream. If the affine expression covers the
1232 * entire expression between parentheses, we return.
1233 * Otherwise, we assume that the affine expression is the
1234 * start of a condition and continue parsing.
1236 static int resolve_paren_expr(struct isl_stream
*s
,
1237 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1239 struct isl_token
*tok
, *tok2
;
1243 tok
= isl_stream_next_token(s
);
1244 if (!tok
|| tok
->type
!= '(')
1247 if (isl_stream_next_token_is(s
, '('))
1248 if (resolve_paren_expr(s
, v
, isl_map_copy(map
), rational
))
1251 if (isl_stream_next_token_is(s
, ISL_TOKEN_EXISTS
) ||
1252 isl_stream_next_token_is(s
, ISL_TOKEN_NOT
) ||
1253 isl_stream_next_token_is(s
, ISL_TOKEN_TRUE
) ||
1254 isl_stream_next_token_is(s
, ISL_TOKEN_FALSE
) ||
1255 isl_stream_next_token_is(s
, ISL_TOKEN_MAP
)) {
1256 map
= read_disjuncts(s
, v
, map
, rational
);
1257 if (isl_stream_eat(s
, ')'))
1259 tok
->type
= ISL_TOKEN_MAP
;
1261 isl_stream_push_token(s
, tok
);
1265 tok2
= isl_stream_next_token(s
);
1270 isl_stream_push_token(s
, tok2
);
1272 pwaff
= accept_affine(s
, isl_space_wrap(isl_map_get_space(map
)), v
);
1276 tok2
= isl_token_new(s
->ctx
, line
, col
, 0);
1279 tok2
->type
= ISL_TOKEN_AFF
;
1280 tok2
->u
.pwaff
= pwaff
;
1282 if (isl_stream_eat_if_available(s
, ')')) {
1283 isl_stream_push_token(s
, tok2
);
1284 isl_token_free(tok
);
1289 isl_stream_push_token(s
, tok2
);
1291 map
= read_disjuncts(s
, v
, map
, rational
);
1292 if (isl_stream_eat(s
, ')'))
1295 tok
->type
= ISL_TOKEN_MAP
;
1297 isl_stream_push_token(s
, tok
);
1301 isl_pw_aff_free(pwaff
);
1303 isl_token_free(tok
);
1308 static __isl_give isl_map
*read_conjunct(struct isl_stream
*s
,
1309 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1311 if (isl_stream_next_token_is(s
, '('))
1312 if (resolve_paren_expr(s
, v
, isl_map_copy(map
), rational
))
1315 if (isl_stream_next_token_is(s
, ISL_TOKEN_MAP
)) {
1316 struct isl_token
*tok
;
1317 tok
= isl_stream_next_token(s
);
1321 map
= isl_map_copy(tok
->u
.map
);
1322 isl_token_free(tok
);
1326 if (isl_stream_eat_if_available(s
, ISL_TOKEN_EXISTS
))
1327 return read_exists(s
, v
, map
, rational
);
1329 if (isl_stream_eat_if_available(s
, ISL_TOKEN_TRUE
))
1332 if (isl_stream_eat_if_available(s
, ISL_TOKEN_FALSE
)) {
1333 isl_space
*dim
= isl_map_get_space(map
);
1335 return isl_map_empty(dim
);
1338 return add_constraint(s
, v
, map
, rational
);
1344 static __isl_give isl_map
*read_conjuncts(struct isl_stream
*s
,
1345 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1350 negate
= isl_stream_eat_if_available(s
, ISL_TOKEN_NOT
);
1351 res
= read_conjunct(s
, v
, isl_map_copy(map
), rational
);
1353 res
= isl_map_subtract(isl_map_copy(map
), res
);
1355 while (isl_stream_eat_if_available(s
, ISL_TOKEN_AND
)) {
1358 negate
= isl_stream_eat_if_available(s
, ISL_TOKEN_NOT
);
1359 res_i
= read_conjunct(s
, v
, isl_map_copy(map
), rational
);
1361 res
= isl_map_subtract(res
, res_i
);
1363 res
= isl_map_intersect(res
, res_i
);
1370 static struct isl_map
*read_disjuncts(struct isl_stream
*s
,
1371 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1375 if (isl_stream_next_token_is(s
, '}')) {
1376 isl_space
*dim
= isl_map_get_space(map
);
1378 return isl_map_universe(dim
);
1381 res
= read_conjuncts(s
, v
, isl_map_copy(map
), rational
);
1382 while (isl_stream_eat_if_available(s
, ISL_TOKEN_OR
)) {
1385 res_i
= read_conjuncts(s
, v
, isl_map_copy(map
), rational
);
1386 res
= isl_map_union(res
, res_i
);
1393 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map
*bmap
, int pos
)
1395 if (pos
< isl_basic_map_dim(bmap
, isl_dim_out
))
1396 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
1397 isl_basic_map_dim(bmap
, isl_dim_in
) + pos
;
1398 pos
-= isl_basic_map_dim(bmap
, isl_dim_out
);
1400 if (pos
< isl_basic_map_dim(bmap
, isl_dim_in
))
1401 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) + pos
;
1402 pos
-= isl_basic_map_dim(bmap
, isl_dim_in
);
1404 if (pos
< isl_basic_map_dim(bmap
, isl_dim_div
))
1405 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
1406 isl_basic_map_dim(bmap
, isl_dim_in
) +
1407 isl_basic_map_dim(bmap
, isl_dim_out
) + pos
;
1408 pos
-= isl_basic_map_dim(bmap
, isl_dim_div
);
1410 if (pos
< isl_basic_map_dim(bmap
, isl_dim_param
))
1416 static __isl_give isl_basic_map
*basic_map_read_polylib_constraint(
1417 struct isl_stream
*s
, __isl_take isl_basic_map
*bmap
)
1420 struct isl_token
*tok
;
1430 nparam
= isl_basic_map_dim(bmap
, isl_dim_param
);
1431 dim
= isl_basic_map_dim(bmap
, isl_dim_out
);
1433 tok
= isl_stream_next_token(s
);
1434 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1435 isl_stream_error(s
, tok
, "expecting coefficient");
1437 isl_stream_push_token(s
, tok
);
1440 if (!tok
->on_new_line
) {
1441 isl_stream_error(s
, tok
, "coefficient should appear on new line");
1442 isl_stream_push_token(s
, tok
);
1446 type
= isl_int_get_si(tok
->u
.v
);
1447 isl_token_free(tok
);
1449 isl_assert(s
->ctx
, type
== 0 || type
== 1, goto error
);
1451 k
= isl_basic_map_alloc_equality(bmap
);
1454 k
= isl_basic_map_alloc_inequality(bmap
);
1460 for (j
= 0; j
< 1 + isl_basic_map_total_dim(bmap
); ++j
) {
1462 tok
= isl_stream_next_token(s
);
1463 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1464 isl_stream_error(s
, tok
, "expecting coefficient");
1466 isl_stream_push_token(s
, tok
);
1469 if (tok
->on_new_line
) {
1470 isl_stream_error(s
, tok
,
1471 "coefficient should not appear on new line");
1472 isl_stream_push_token(s
, tok
);
1475 pos
= polylib_pos_to_isl_pos(bmap
, j
);
1476 isl_int_set(c
[pos
], tok
->u
.v
);
1477 isl_token_free(tok
);
1482 isl_basic_map_free(bmap
);
1486 static __isl_give isl_basic_map
*basic_map_read_polylib(struct isl_stream
*s
)
1489 struct isl_token
*tok
;
1490 struct isl_token
*tok2
;
1493 unsigned in
= 0, out
, local
= 0;
1494 struct isl_basic_map
*bmap
= NULL
;
1497 tok
= isl_stream_next_token(s
);
1499 isl_stream_error(s
, NULL
, "unexpected EOF");
1502 tok2
= isl_stream_next_token(s
);
1504 isl_token_free(tok
);
1505 isl_stream_error(s
, NULL
, "unexpected EOF");
1508 if (tok
->type
!= ISL_TOKEN_VALUE
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
1509 isl_stream_push_token(s
, tok2
);
1510 isl_stream_push_token(s
, tok
);
1511 isl_stream_error(s
, NULL
,
1512 "expecting constraint matrix dimensions");
1515 n_row
= isl_int_get_si(tok
->u
.v
);
1516 n_col
= isl_int_get_si(tok2
->u
.v
);
1517 on_new_line
= tok2
->on_new_line
;
1518 isl_token_free(tok2
);
1519 isl_token_free(tok
);
1520 isl_assert(s
->ctx
, !on_new_line
, return NULL
);
1521 isl_assert(s
->ctx
, n_row
>= 0, return NULL
);
1522 isl_assert(s
->ctx
, n_col
>= 2 + nparam
, return NULL
);
1523 tok
= isl_stream_next_token_on_same_line(s
);
1525 if (tok
->type
!= ISL_TOKEN_VALUE
) {
1526 isl_stream_error(s
, tok
,
1527 "expecting number of output dimensions");
1528 isl_stream_push_token(s
, tok
);
1531 out
= isl_int_get_si(tok
->u
.v
);
1532 isl_token_free(tok
);
1534 tok
= isl_stream_next_token_on_same_line(s
);
1535 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1536 isl_stream_error(s
, tok
,
1537 "expecting number of input dimensions");
1539 isl_stream_push_token(s
, tok
);
1542 in
= isl_int_get_si(tok
->u
.v
);
1543 isl_token_free(tok
);
1545 tok
= isl_stream_next_token_on_same_line(s
);
1546 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1547 isl_stream_error(s
, tok
,
1548 "expecting number of existentials");
1550 isl_stream_push_token(s
, tok
);
1553 local
= isl_int_get_si(tok
->u
.v
);
1554 isl_token_free(tok
);
1556 tok
= isl_stream_next_token_on_same_line(s
);
1557 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1558 isl_stream_error(s
, tok
,
1559 "expecting number of parameters");
1561 isl_stream_push_token(s
, tok
);
1564 nparam
= isl_int_get_si(tok
->u
.v
);
1565 isl_token_free(tok
);
1566 if (n_col
!= 1 + out
+ in
+ local
+ nparam
+ 1) {
1567 isl_stream_error(s
, NULL
,
1568 "dimensions don't match");
1572 out
= n_col
- 2 - nparam
;
1573 bmap
= isl_basic_map_alloc(s
->ctx
, nparam
, in
, out
, local
, n_row
, n_row
);
1577 for (i
= 0; i
< local
; ++i
) {
1578 int k
= isl_basic_map_alloc_div(bmap
);
1581 isl_seq_clr(bmap
->div
[k
], 1 + 1 + nparam
+ in
+ out
+ local
);
1584 for (i
= 0; i
< n_row
; ++i
)
1585 bmap
= basic_map_read_polylib_constraint(s
, bmap
);
1587 tok
= isl_stream_next_token_on_same_line(s
);
1589 isl_stream_error(s
, tok
, "unexpected extra token on line");
1590 isl_stream_push_token(s
, tok
);
1594 bmap
= isl_basic_map_simplify(bmap
);
1595 bmap
= isl_basic_map_finalize(bmap
);
1598 isl_basic_map_free(bmap
);
1602 static struct isl_map
*map_read_polylib(struct isl_stream
*s
)
1604 struct isl_token
*tok
;
1605 struct isl_token
*tok2
;
1607 struct isl_map
*map
;
1609 tok
= isl_stream_next_token(s
);
1611 isl_stream_error(s
, NULL
, "unexpected EOF");
1614 tok2
= isl_stream_next_token_on_same_line(s
);
1615 if (tok2
&& tok2
->type
== ISL_TOKEN_VALUE
) {
1616 isl_stream_push_token(s
, tok2
);
1617 isl_stream_push_token(s
, tok
);
1618 return isl_map_from_basic_map(basic_map_read_polylib(s
));
1621 isl_stream_error(s
, tok2
, "unexpected token");
1622 isl_stream_push_token(s
, tok2
);
1623 isl_stream_push_token(s
, tok
);
1626 n
= isl_int_get_si(tok
->u
.v
);
1627 isl_token_free(tok
);
1629 isl_assert(s
->ctx
, n
>= 1, return NULL
);
1631 map
= isl_map_from_basic_map(basic_map_read_polylib(s
));
1633 for (i
= 1; map
&& i
< n
; ++i
)
1634 map
= isl_map_union(map
,
1635 isl_map_from_basic_map(basic_map_read_polylib(s
)));
1640 static int optional_power(struct isl_stream
*s
)
1643 struct isl_token
*tok
;
1645 tok
= isl_stream_next_token(s
);
1648 if (tok
->type
!= '^') {
1649 isl_stream_push_token(s
, tok
);
1652 isl_token_free(tok
);
1653 tok
= isl_stream_next_token(s
);
1654 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1655 isl_stream_error(s
, tok
, "expecting exponent");
1657 isl_stream_push_token(s
, tok
);
1660 pow
= isl_int_get_si(tok
->u
.v
);
1661 isl_token_free(tok
);
1665 static __isl_give isl_pw_qpolynomial
*read_term(struct isl_stream
*s
,
1666 __isl_keep isl_map
*map
, struct vars
*v
);
1668 static __isl_give isl_pw_qpolynomial
*read_factor(struct isl_stream
*s
,
1669 __isl_keep isl_map
*map
, struct vars
*v
)
1671 isl_pw_qpolynomial
*pwqp
;
1672 struct isl_token
*tok
;
1674 tok
= next_token(s
);
1676 isl_stream_error(s
, NULL
, "unexpected EOF");
1679 if (tok
->type
== '(') {
1682 isl_token_free(tok
);
1683 pwqp
= read_term(s
, map
, v
);
1686 if (isl_stream_eat(s
, ')'))
1688 pow
= optional_power(s
);
1689 pwqp
= isl_pw_qpolynomial_pow(pwqp
, pow
);
1690 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
1691 struct isl_token
*tok2
;
1692 tok2
= isl_stream_next_token(s
);
1693 isl_qpolynomial
*qp
;
1694 if (tok2
&& tok2
->type
== '/') {
1695 isl_token_free(tok2
);
1696 tok2
= next_token(s
);
1697 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
1698 isl_stream_error(s
, tok2
, "expected denominator");
1699 isl_token_free(tok
);
1700 isl_token_free(tok2
);
1703 qp
= isl_qpolynomial_rat_cst_on_domain(isl_map_get_space(map
),
1704 tok
->u
.v
, tok2
->u
.v
);
1705 isl_token_free(tok2
);
1707 isl_stream_push_token(s
, tok2
);
1708 qp
= isl_qpolynomial_cst_on_domain(isl_map_get_space(map
),
1711 isl_token_free(tok
);
1712 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1713 } else if (tok
->type
== ISL_TOKEN_INFTY
) {
1714 isl_qpolynomial
*qp
;
1715 isl_token_free(tok
);
1716 qp
= isl_qpolynomial_infty_on_domain(isl_map_get_space(map
));
1717 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1718 } else if (tok
->type
== ISL_TOKEN_NAN
) {
1719 isl_qpolynomial
*qp
;
1720 isl_token_free(tok
);
1721 qp
= isl_qpolynomial_nan_on_domain(isl_map_get_space(map
));
1722 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1723 } else if (tok
->type
== ISL_TOKEN_IDENT
) {
1725 int pos
= vars_pos(v
, tok
->u
.s
, -1);
1727 isl_qpolynomial
*qp
;
1729 isl_token_free(tok
);
1733 vars_drop(v
, v
->n
- n
);
1734 isl_stream_error(s
, tok
, "unknown identifier");
1735 isl_token_free(tok
);
1738 isl_token_free(tok
);
1739 pow
= optional_power(s
);
1740 qp
= isl_qpolynomial_var_pow_on_domain(isl_map_get_space(map
), pos
, pow
);
1741 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1742 } else if (tok
->type
== '[') {
1746 isl_stream_push_token(s
, tok
);
1747 pwaff
= accept_div(s
, isl_map_get_space(map
), v
);
1748 pow
= optional_power(s
);
1749 pwqp
= isl_pw_qpolynomial_from_pw_aff(pwaff
);
1750 pwqp
= isl_pw_qpolynomial_pow(pwqp
, pow
);
1751 } else if (tok
->type
== '-') {
1752 isl_token_free(tok
);
1753 pwqp
= read_factor(s
, map
, v
);
1754 pwqp
= isl_pw_qpolynomial_neg(pwqp
);
1756 isl_stream_error(s
, tok
, "unexpected isl_token");
1757 isl_stream_push_token(s
, tok
);
1761 if (isl_stream_eat_if_available(s
, '*') ||
1762 isl_stream_next_token_is(s
, ISL_TOKEN_IDENT
)) {
1763 isl_pw_qpolynomial
*pwqp2
;
1765 pwqp2
= read_factor(s
, map
, v
);
1766 pwqp
= isl_pw_qpolynomial_mul(pwqp
, pwqp2
);
1771 isl_pw_qpolynomial_free(pwqp
);
1775 static __isl_give isl_pw_qpolynomial
*read_term(struct isl_stream
*s
,
1776 __isl_keep isl_map
*map
, struct vars
*v
)
1778 struct isl_token
*tok
;
1779 isl_pw_qpolynomial
*pwqp
;
1781 pwqp
= read_factor(s
, map
, v
);
1784 tok
= next_token(s
);
1788 if (tok
->type
== '+') {
1789 isl_pw_qpolynomial
*pwqp2
;
1791 isl_token_free(tok
);
1792 pwqp2
= read_factor(s
, map
, v
);
1793 pwqp
= isl_pw_qpolynomial_add(pwqp
, pwqp2
);
1794 } else if (tok
->type
== '-') {
1795 isl_pw_qpolynomial
*pwqp2
;
1797 isl_token_free(tok
);
1798 pwqp2
= read_factor(s
, map
, v
);
1799 pwqp
= isl_pw_qpolynomial_sub(pwqp
, pwqp2
);
1800 } else if (tok
->type
== ISL_TOKEN_VALUE
&&
1801 isl_int_is_neg(tok
->u
.v
)) {
1802 isl_pw_qpolynomial
*pwqp2
;
1804 isl_stream_push_token(s
, tok
);
1805 pwqp2
= read_factor(s
, map
, v
);
1806 pwqp
= isl_pw_qpolynomial_add(pwqp
, pwqp2
);
1808 isl_stream_push_token(s
, tok
);
1816 static __isl_give isl_map
*read_optional_disjuncts(struct isl_stream
*s
,
1817 __isl_take isl_map
*map
, struct vars
*v
, int rational
)
1819 struct isl_token
*tok
;
1821 tok
= isl_stream_next_token(s
);
1823 isl_stream_error(s
, NULL
, "unexpected EOF");
1826 if (tok
->type
== ':' ||
1827 (tok
->type
== ISL_TOKEN_OR
&& !strcmp(tok
->u
.s
, "|"))) {
1828 isl_token_free(tok
);
1829 map
= read_disjuncts(s
, v
, map
, rational
);
1831 isl_stream_push_token(s
, tok
);
1839 static struct isl_obj
obj_read_poly(struct isl_stream
*s
,
1840 __isl_take isl_map
*map
, struct vars
*v
, int n
)
1842 struct isl_obj obj
= { isl_obj_pw_qpolynomial
, NULL
};
1843 isl_pw_qpolynomial
*pwqp
;
1844 struct isl_set
*set
;
1846 pwqp
= read_term(s
, map
, v
);
1847 map
= read_optional_disjuncts(s
, map
, v
, 0);
1848 set
= isl_map_range(map
);
1850 pwqp
= isl_pw_qpolynomial_intersect_domain(pwqp
, set
);
1852 vars_drop(v
, v
->n
- n
);
1858 static struct isl_obj
obj_read_poly_or_fold(struct isl_stream
*s
,
1859 __isl_take isl_set
*set
, struct vars
*v
, int n
)
1861 struct isl_obj obj
= { isl_obj_pw_qpolynomial_fold
, NULL
};
1862 isl_pw_qpolynomial
*pwqp
;
1863 isl_pw_qpolynomial_fold
*pwf
= NULL
;
1865 if (!isl_stream_eat_if_available(s
, ISL_TOKEN_MAX
))
1866 return obj_read_poly(s
, set
, v
, n
);
1868 if (isl_stream_eat(s
, '('))
1871 pwqp
= read_term(s
, set
, v
);
1872 pwf
= isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max
, pwqp
);
1874 while (isl_stream_eat_if_available(s
, ',')) {
1875 isl_pw_qpolynomial_fold
*pwf_i
;
1876 pwqp
= read_term(s
, set
, v
);
1877 pwf_i
= isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max
,
1879 pwf
= isl_pw_qpolynomial_fold_fold(pwf
, pwf_i
);
1882 if (isl_stream_eat(s
, ')'))
1885 set
= read_optional_disjuncts(s
, set
, v
, 0);
1886 pwf
= isl_pw_qpolynomial_fold_intersect_domain(pwf
, set
);
1888 vars_drop(v
, v
->n
- n
);
1894 isl_pw_qpolynomial_fold_free(pwf
);
1895 obj
.type
= isl_obj_none
;
1899 static int is_rational(struct isl_stream
*s
)
1901 struct isl_token
*tok
;
1903 tok
= isl_stream_next_token(s
);
1906 if (tok
->type
== ISL_TOKEN_RAT
&& isl_stream_next_token_is(s
, ':')) {
1907 isl_token_free(tok
);
1908 isl_stream_eat(s
, ':');
1912 isl_stream_push_token(s
, tok
);
1917 static struct isl_obj
obj_read_body(struct isl_stream
*s
,
1918 __isl_take isl_map
*map
, struct vars
*v
)
1920 struct isl_token
*tok
;
1921 struct isl_obj obj
= { isl_obj_set
, NULL
};
1925 rational
= is_rational(s
);
1927 map
= isl_map_set_rational(map
);
1929 if (isl_stream_next_token_is(s
, ':')) {
1930 obj
.type
= isl_obj_set
;
1931 obj
.v
= read_optional_disjuncts(s
, map
, v
, rational
);
1935 if (!next_is_tuple(s
))
1936 return obj_read_poly_or_fold(s
, map
, v
, n
);
1938 map
= read_map_tuple(s
, map
, isl_dim_in
, v
, rational
, 0);
1941 tok
= isl_stream_next_token(s
);
1944 if (tok
->type
== ISL_TOKEN_TO
) {
1945 obj
.type
= isl_obj_map
;
1946 isl_token_free(tok
);
1947 if (!next_is_tuple(s
)) {
1948 isl_set
*set
= isl_map_domain(map
);
1949 return obj_read_poly_or_fold(s
, set
, v
, n
);
1951 map
= read_map_tuple(s
, map
, isl_dim_out
, v
, rational
, 0);
1955 map
= isl_map_domain(map
);
1956 isl_stream_push_token(s
, tok
);
1959 map
= read_optional_disjuncts(s
, map
, v
, rational
);
1961 vars_drop(v
, v
->n
- n
);
1967 obj
.type
= isl_obj_none
;
1971 static struct isl_obj
to_union(isl_ctx
*ctx
, struct isl_obj obj
)
1973 if (obj
.type
== isl_obj_map
) {
1974 obj
.v
= isl_union_map_from_map(obj
.v
);
1975 obj
.type
= isl_obj_union_map
;
1976 } else if (obj
.type
== isl_obj_set
) {
1977 obj
.v
= isl_union_set_from_set(obj
.v
);
1978 obj
.type
= isl_obj_union_set
;
1979 } else if (obj
.type
== isl_obj_pw_qpolynomial
) {
1980 obj
.v
= isl_union_pw_qpolynomial_from_pw_qpolynomial(obj
.v
);
1981 obj
.type
= isl_obj_union_pw_qpolynomial
;
1982 } else if (obj
.type
== isl_obj_pw_qpolynomial_fold
) {
1983 obj
.v
= isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj
.v
);
1984 obj
.type
= isl_obj_union_pw_qpolynomial_fold
;
1986 isl_assert(ctx
, 0, goto error
);
1989 obj
.type
->free(obj
.v
);
1990 obj
.type
= isl_obj_none
;
1994 static struct isl_obj
obj_add(struct isl_ctx
*ctx
,
1995 struct isl_obj obj1
, struct isl_obj obj2
)
1997 if (obj1
.type
== isl_obj_set
&& obj2
.type
== isl_obj_union_set
)
1998 obj1
= to_union(ctx
, obj1
);
1999 if (obj1
.type
== isl_obj_union_set
&& obj2
.type
== isl_obj_set
)
2000 obj2
= to_union(ctx
, obj2
);
2001 if (obj1
.type
== isl_obj_map
&& obj2
.type
== isl_obj_union_map
)
2002 obj1
= to_union(ctx
, obj1
);
2003 if (obj1
.type
== isl_obj_union_map
&& obj2
.type
== isl_obj_map
)
2004 obj2
= to_union(ctx
, obj2
);
2005 if (obj1
.type
== isl_obj_pw_qpolynomial
&&
2006 obj2
.type
== isl_obj_union_pw_qpolynomial
)
2007 obj1
= to_union(ctx
, obj1
);
2008 if (obj1
.type
== isl_obj_union_pw_qpolynomial
&&
2009 obj2
.type
== isl_obj_pw_qpolynomial
)
2010 obj2
= to_union(ctx
, obj2
);
2011 if (obj1
.type
== isl_obj_pw_qpolynomial_fold
&&
2012 obj2
.type
== isl_obj_union_pw_qpolynomial_fold
)
2013 obj1
= to_union(ctx
, obj1
);
2014 if (obj1
.type
== isl_obj_union_pw_qpolynomial_fold
&&
2015 obj2
.type
== isl_obj_pw_qpolynomial_fold
)
2016 obj2
= to_union(ctx
, obj2
);
2017 isl_assert(ctx
, obj1
.type
== obj2
.type
, goto error
);
2018 if (obj1
.type
== isl_obj_map
&& !isl_map_has_equal_space(obj1
.v
, obj2
.v
)) {
2019 obj1
= to_union(ctx
, obj1
);
2020 obj2
= to_union(ctx
, obj2
);
2022 if (obj1
.type
== isl_obj_set
&& !isl_set_has_equal_space(obj1
.v
, obj2
.v
)) {
2023 obj1
= to_union(ctx
, obj1
);
2024 obj2
= to_union(ctx
, obj2
);
2026 if (obj1
.type
== isl_obj_pw_qpolynomial
&&
2027 !isl_pw_qpolynomial_has_equal_space(obj1
.v
, obj2
.v
)) {
2028 obj1
= to_union(ctx
, obj1
);
2029 obj2
= to_union(ctx
, obj2
);
2031 if (obj1
.type
== isl_obj_pw_qpolynomial_fold
&&
2032 !isl_pw_qpolynomial_fold_has_equal_space(obj1
.v
, obj2
.v
)) {
2033 obj1
= to_union(ctx
, obj1
);
2034 obj2
= to_union(ctx
, obj2
);
2036 obj1
.v
= obj1
.type
->add(obj1
.v
, obj2
.v
);
2039 obj1
.type
->free(obj1
.v
);
2040 obj2
.type
->free(obj2
.v
);
2041 obj1
.type
= isl_obj_none
;
2046 static struct isl_obj
obj_read(struct isl_stream
*s
)
2048 isl_map
*map
= NULL
;
2049 struct isl_token
*tok
;
2050 struct vars
*v
= NULL
;
2051 struct isl_obj obj
= { isl_obj_set
, NULL
};
2053 tok
= next_token(s
);
2055 isl_stream_error(s
, NULL
, "unexpected EOF");
2058 if (tok
->type
== ISL_TOKEN_VALUE
) {
2059 struct isl_token
*tok2
;
2060 struct isl_map
*map
;
2062 tok2
= isl_stream_next_token(s
);
2063 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
||
2064 isl_int_is_neg(tok2
->u
.v
)) {
2066 isl_stream_push_token(s
, tok2
);
2067 obj
.type
= isl_obj_int
;
2068 obj
.v
= isl_int_obj_alloc(s
->ctx
, tok
->u
.v
);
2069 isl_token_free(tok
);
2072 isl_stream_push_token(s
, tok2
);
2073 isl_stream_push_token(s
, tok
);
2074 map
= map_read_polylib(s
);
2077 if (isl_map_may_be_set(map
))
2078 obj
.v
= isl_map_range(map
);
2080 obj
.type
= isl_obj_map
;
2085 v
= vars_new(s
->ctx
);
2087 isl_stream_push_token(s
, tok
);
2090 map
= isl_map_universe(isl_space_params_alloc(s
->ctx
, 0));
2091 if (tok
->type
== '[') {
2092 isl_stream_push_token(s
, tok
);
2093 map
= read_map_tuple(s
, map
, isl_dim_param
, v
, 0, 0);
2096 tok
= isl_stream_next_token(s
);
2097 if (!tok
|| tok
->type
!= ISL_TOKEN_TO
) {
2098 isl_stream_error(s
, tok
, "expecting '->'");
2100 isl_stream_push_token(s
, tok
);
2103 isl_token_free(tok
);
2104 tok
= isl_stream_next_token(s
);
2106 if (!tok
|| tok
->type
!= '{') {
2107 isl_stream_error(s
, tok
, "expecting '{'");
2109 isl_stream_push_token(s
, tok
);
2112 isl_token_free(tok
);
2114 tok
= isl_stream_next_token(s
);
2117 else if (tok
->type
== ISL_TOKEN_IDENT
&& !strcmp(tok
->u
.s
, "Sym")) {
2118 isl_token_free(tok
);
2119 if (isl_stream_eat(s
, '='))
2121 map
= read_map_tuple(s
, map
, isl_dim_param
, v
, 0, 1);
2124 } else if (tok
->type
== '}') {
2125 obj
.type
= isl_obj_union_set
;
2126 obj
.v
= isl_union_set_empty(isl_map_get_space(map
));
2127 isl_token_free(tok
);
2130 isl_stream_push_token(s
, tok
);
2135 o
= obj_read_body(s
, isl_map_copy(map
), v
);
2136 if (o
.type
== isl_obj_none
|| !o
.v
)
2141 obj
= obj_add(s
->ctx
, obj
, o
);
2142 if (obj
.type
== isl_obj_none
|| !obj
.v
)
2145 tok
= isl_stream_next_token(s
);
2146 if (!tok
|| tok
->type
!= ';')
2148 isl_token_free(tok
);
2149 if (isl_stream_next_token_is(s
, '}')) {
2150 tok
= isl_stream_next_token(s
);
2155 if (tok
&& tok
->type
== '}') {
2156 isl_token_free(tok
);
2158 isl_stream_error(s
, tok
, "unexpected isl_token");
2160 isl_token_free(tok
);
2170 obj
.type
->free(obj
.v
);
2177 struct isl_obj
isl_stream_read_obj(struct isl_stream
*s
)
2182 __isl_give isl_map
*isl_stream_read_map(struct isl_stream
*s
)
2188 isl_assert(s
->ctx
, obj
.type
== isl_obj_map
||
2189 obj
.type
== isl_obj_set
, goto error
);
2191 if (obj
.type
== isl_obj_set
)
2192 obj
.v
= isl_map_from_range(obj
.v
);
2196 obj
.type
->free(obj
.v
);
2200 __isl_give isl_set
*isl_stream_read_set(struct isl_stream
*s
)
2206 if (obj
.type
== isl_obj_map
&& isl_map_may_be_set(obj
.v
)) {
2207 obj
.v
= isl_map_range(obj
.v
);
2208 obj
.type
= isl_obj_set
;
2210 isl_assert(s
->ctx
, obj
.type
== isl_obj_set
, goto error
);
2215 obj
.type
->free(obj
.v
);
2219 __isl_give isl_union_map
*isl_stream_read_union_map(struct isl_stream
*s
)
2224 if (obj
.type
== isl_obj_map
) {
2225 obj
.type
= isl_obj_union_map
;
2226 obj
.v
= isl_union_map_from_map(obj
.v
);
2228 if (obj
.type
== isl_obj_set
) {
2229 obj
.type
= isl_obj_union_set
;
2230 obj
.v
= isl_union_set_from_set(obj
.v
);
2232 if (obj
.v
&& obj
.type
== isl_obj_union_set
&&
2233 isl_union_set_is_empty(obj
.v
))
2234 obj
.type
= isl_obj_union_map
;
2235 if (obj
.v
&& obj
.type
!= isl_obj_union_map
)
2236 isl_die(s
->ctx
, isl_error_invalid
, "invalid input", goto error
);
2240 obj
.type
->free(obj
.v
);
2244 __isl_give isl_union_set
*isl_stream_read_union_set(struct isl_stream
*s
)
2249 if (obj
.type
== isl_obj_set
) {
2250 obj
.type
= isl_obj_union_set
;
2251 obj
.v
= isl_union_set_from_set(obj
.v
);
2254 isl_assert(s
->ctx
, obj
.type
== isl_obj_union_set
, goto error
);
2258 obj
.type
->free(obj
.v
);
2262 static __isl_give isl_basic_map
*basic_map_read(struct isl_stream
*s
)
2265 struct isl_map
*map
;
2266 struct isl_basic_map
*bmap
;
2273 isl_assert(map
->ctx
, map
->n
<= 1, goto error
);
2276 bmap
= isl_basic_map_empty_like_map(map
);
2278 bmap
= isl_basic_map_copy(map
->p
[0]);
2288 static __isl_give isl_basic_set
*basic_set_read(struct isl_stream
*s
)
2290 isl_basic_map
*bmap
;
2291 bmap
= basic_map_read(s
);
2294 if (!isl_basic_map_may_be_set(bmap
))
2295 isl_die(s
->ctx
, isl_error_invalid
,
2296 "input is not a set", goto error
);
2297 return isl_basic_map_range(bmap
);
2299 isl_basic_map_free(bmap
);
2303 __isl_give isl_basic_map
*isl_basic_map_read_from_file(isl_ctx
*ctx
,
2306 struct isl_basic_map
*bmap
;
2307 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2310 bmap
= basic_map_read(s
);
2315 __isl_give isl_basic_set
*isl_basic_set_read_from_file(isl_ctx
*ctx
,
2318 isl_basic_set
*bset
;
2319 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2322 bset
= basic_set_read(s
);
2327 struct isl_basic_map
*isl_basic_map_read_from_str(struct isl_ctx
*ctx
,
2330 struct isl_basic_map
*bmap
;
2331 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2334 bmap
= basic_map_read(s
);
2339 struct isl_basic_set
*isl_basic_set_read_from_str(struct isl_ctx
*ctx
,
2342 isl_basic_set
*bset
;
2343 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2346 bset
= basic_set_read(s
);
2351 __isl_give isl_map
*isl_map_read_from_file(struct isl_ctx
*ctx
,
2354 struct isl_map
*map
;
2355 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2358 map
= isl_stream_read_map(s
);
2363 __isl_give isl_map
*isl_map_read_from_str(struct isl_ctx
*ctx
,
2366 struct isl_map
*map
;
2367 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2370 map
= isl_stream_read_map(s
);
2375 __isl_give isl_set
*isl_set_read_from_file(struct isl_ctx
*ctx
,
2379 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2382 set
= isl_stream_read_set(s
);
2387 struct isl_set
*isl_set_read_from_str(struct isl_ctx
*ctx
,
2391 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2394 set
= isl_stream_read_set(s
);
2399 __isl_give isl_union_map
*isl_union_map_read_from_file(isl_ctx
*ctx
,
2402 isl_union_map
*umap
;
2403 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2406 umap
= isl_stream_read_union_map(s
);
2411 __isl_give isl_union_map
*isl_union_map_read_from_str(struct isl_ctx
*ctx
,
2414 isl_union_map
*umap
;
2415 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2418 umap
= isl_stream_read_union_map(s
);
2423 __isl_give isl_union_set
*isl_union_set_read_from_file(isl_ctx
*ctx
,
2426 isl_union_set
*uset
;
2427 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2430 uset
= isl_stream_read_union_set(s
);
2435 __isl_give isl_union_set
*isl_union_set_read_from_str(struct isl_ctx
*ctx
,
2438 isl_union_set
*uset
;
2439 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2442 uset
= isl_stream_read_union_set(s
);
2447 static __isl_give isl_vec
*isl_vec_read_polylib(struct isl_stream
*s
)
2449 struct isl_vec
*vec
= NULL
;
2450 struct isl_token
*tok
;
2454 tok
= isl_stream_next_token(s
);
2455 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
2456 isl_stream_error(s
, tok
, "expecting vector length");
2460 size
= isl_int_get_si(tok
->u
.v
);
2461 isl_token_free(tok
);
2463 vec
= isl_vec_alloc(s
->ctx
, size
);
2465 for (j
= 0; j
< size
; ++j
) {
2466 tok
= isl_stream_next_token(s
);
2467 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
2468 isl_stream_error(s
, tok
, "expecting constant value");
2471 isl_int_set(vec
->el
[j
], tok
->u
.v
);
2472 isl_token_free(tok
);
2477 isl_token_free(tok
);
2482 static __isl_give isl_vec
*vec_read(struct isl_stream
*s
)
2484 return isl_vec_read_polylib(s
);
2487 __isl_give isl_vec
*isl_vec_read_from_file(isl_ctx
*ctx
, FILE *input
)
2490 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2498 __isl_give isl_pw_qpolynomial
*isl_stream_read_pw_qpolynomial(
2499 struct isl_stream
*s
)
2505 isl_assert(s
->ctx
, obj
.type
== isl_obj_pw_qpolynomial
,
2510 obj
.type
->free(obj
.v
);
2514 __isl_give isl_pw_qpolynomial
*isl_pw_qpolynomial_read_from_str(isl_ctx
*ctx
,
2517 isl_pw_qpolynomial
*pwqp
;
2518 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2521 pwqp
= isl_stream_read_pw_qpolynomial(s
);
2526 __isl_give isl_pw_qpolynomial
*isl_pw_qpolynomial_read_from_file(isl_ctx
*ctx
,
2529 isl_pw_qpolynomial
*pwqp
;
2530 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2533 pwqp
= isl_stream_read_pw_qpolynomial(s
);
2538 /* Is the next token an identifer not in "v"?
2540 static int next_is_fresh_ident(struct isl_stream
*s
, struct vars
*v
)
2544 struct isl_token
*tok
;
2546 tok
= isl_stream_next_token(s
);
2549 fresh
= tok
->type
== ISL_TOKEN_IDENT
&& vars_pos(v
, tok
->u
.s
, -1) >= n
;
2550 isl_stream_push_token(s
, tok
);
2552 vars_drop(v
, v
->n
- n
);
2557 /* First read the domain of the affine expression, which may be
2558 * a parameter space or a set.
2559 * The tricky part is that we don't know if the domain is a set or not,
2560 * so when we are trying to read the domain, we may actually be reading
2561 * the affine expression itself (defined on a parameter domains)
2562 * If the tuple we are reading is named, we assume it's the domain.
2563 * Also, if inside the tuple, the first thing we find is a nested tuple
2564 * or a new identifier, we again assume it's the domain.
2565 * Otherwise, we assume we are reading an affine expression.
2567 static __isl_give isl_set
*read_aff_domain(struct isl_stream
*s
,
2568 __isl_take isl_set
*dom
, struct vars
*v
)
2570 struct isl_token
*tok
;
2572 tok
= isl_stream_next_token(s
);
2573 if (tok
&& (tok
->type
== ISL_TOKEN_IDENT
|| tok
->is_keyword
)) {
2574 isl_stream_push_token(s
, tok
);
2575 return read_map_tuple(s
, dom
, isl_dim_set
, v
, 1, 0);
2577 if (!tok
|| tok
->type
!= '[') {
2578 isl_stream_error(s
, tok
, "expecting '['");
2581 if (next_is_tuple(s
) || next_is_fresh_ident(s
, v
)) {
2582 isl_stream_push_token(s
, tok
);
2583 dom
= read_map_tuple(s
, dom
, isl_dim_set
, v
, 1, 0);
2585 isl_stream_push_token(s
, tok
);
2590 isl_stream_push_token(s
, tok
);
2595 /* Read an affine expression from "s".
2597 __isl_give isl_aff
*isl_stream_read_aff(struct isl_stream
*s
)
2602 ma
= isl_stream_read_multi_aff(s
);
2605 if (isl_multi_aff_dim(ma
, isl_dim_out
) != 1)
2606 isl_die(s
->ctx
, isl_error_invalid
,
2607 "expecting single affine expression",
2610 aff
= isl_multi_aff_get_aff(ma
, 0);
2611 isl_multi_aff_free(ma
);
2614 isl_multi_aff_free(ma
);
2618 /* Read a piecewise affine expression from "s" with domain (space) "dom".
2620 static __isl_give isl_pw_aff
*read_pw_aff_with_dom(struct isl_stream
*s
,
2621 __isl_take isl_set
*dom
, struct vars
*v
)
2623 isl_pw_aff
*pwaff
= NULL
;
2625 if (!isl_set_is_params(dom
) && isl_stream_eat(s
, ISL_TOKEN_TO
))
2628 if (isl_stream_eat(s
, '['))
2631 pwaff
= accept_affine(s
, isl_set_get_space(dom
), v
);
2633 if (isl_stream_eat(s
, ']'))
2636 dom
= read_optional_disjuncts(s
, dom
, v
, 0);
2637 pwaff
= isl_pw_aff_intersect_domain(pwaff
, dom
);
2642 isl_pw_aff_free(pwaff
);
2646 __isl_give isl_pw_aff
*isl_stream_read_pw_aff(struct isl_stream
*s
)
2649 isl_set
*dom
= NULL
;
2651 isl_pw_aff
*pa
= NULL
;
2654 v
= vars_new(s
->ctx
);
2658 dom
= isl_set_universe(isl_space_params_alloc(s
->ctx
, 0));
2659 if (next_is_tuple(s
)) {
2660 dom
= read_map_tuple(s
, dom
, isl_dim_param
, v
, 1, 0);
2661 if (isl_stream_eat(s
, ISL_TOKEN_TO
))
2664 if (isl_stream_eat(s
, '{'))
2668 aff_dom
= read_aff_domain(s
, isl_set_copy(dom
), v
);
2669 pa
= read_pw_aff_with_dom(s
, aff_dom
, v
);
2670 vars_drop(v
, v
->n
- n
);
2672 while (isl_stream_eat_if_available(s
, ';')) {
2676 aff_dom
= read_aff_domain(s
, isl_set_copy(dom
), v
);
2677 pa_i
= read_pw_aff_with_dom(s
, aff_dom
, v
);
2678 vars_drop(v
, v
->n
- n
);
2680 pa
= isl_pw_aff_union_add(pa
, pa_i
);
2683 if (isl_stream_eat(s
, '}'))
2692 isl_pw_aff_free(pa
);
2696 __isl_give isl_aff
*isl_aff_read_from_str(isl_ctx
*ctx
, const char *str
)
2699 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2702 aff
= isl_stream_read_aff(s
);
2707 __isl_give isl_pw_aff
*isl_pw_aff_read_from_str(isl_ctx
*ctx
, const char *str
)
2710 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2713 pa
= isl_stream_read_pw_aff(s
);
2718 /* Read an isl_pw_multi_aff from "s".
2719 * We currently read a generic object and if it turns out to be a set or
2720 * a map, we convert that to an isl_pw_multi_aff.
2721 * It would be more efficient if we were to construct the isl_pw_multi_aff
2724 __isl_give isl_pw_multi_aff
*isl_stream_read_pw_multi_aff(struct isl_stream
*s
)
2732 if (obj
.type
== isl_obj_map
)
2733 return isl_pw_multi_aff_from_map(obj
.v
);
2734 if (obj
.type
== isl_obj_set
)
2735 return isl_pw_multi_aff_from_set(obj
.v
);
2737 obj
.type
->free(obj
.v
);
2738 isl_die(s
->ctx
, isl_error_invalid
, "unexpected object type",
2742 __isl_give isl_pw_multi_aff
*isl_pw_multi_aff_read_from_str(isl_ctx
*ctx
,
2745 isl_pw_multi_aff
*pma
;
2746 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2749 pma
= isl_stream_read_pw_multi_aff(s
);
2754 /* Assuming "pa" represents a single affine expression defined on a universe
2755 * domain, extract this affine expression.
2757 static __isl_give isl_aff
*aff_from_pw_aff(__isl_take isl_pw_aff
*pa
)
2764 isl_die(isl_pw_aff_get_ctx(pa
), isl_error_invalid
,
2765 "expecting single affine expression",
2767 if (!isl_set_plain_is_universe(pa
->p
[0].set
))
2768 isl_die(isl_pw_aff_get_ctx(pa
), isl_error_invalid
,
2769 "expecting universe domain",
2772 aff
= isl_aff_copy(pa
->p
[0].aff
);
2773 isl_pw_aff_free(pa
);
2776 isl_pw_aff_free(pa
);
2780 /* Read a multi-affine expression from "s".
2781 * If the multi-affine expression has a domain, then then tuple
2782 * representing this domain cannot involve any affine expressions.
2783 * The tuple representing the actual expressions needs to consist
2784 * of only affine expressions. Moreover, these expressions can
2785 * only depend on parameters and input dimensions and not on other
2786 * output dimensions.
2788 __isl_give isl_multi_aff
*isl_stream_read_multi_aff(struct isl_stream
*s
)
2791 isl_set
*dom
= NULL
;
2792 isl_multi_pw_aff
*tuple
= NULL
;
2794 isl_space
*space
, *dom_space
;
2795 isl_multi_aff
*ma
= NULL
;
2797 v
= vars_new(s
->ctx
);
2801 dom
= isl_set_universe(isl_space_params_alloc(s
->ctx
, 0));
2802 if (next_is_tuple(s
)) {
2803 dom
= read_map_tuple(s
, dom
, isl_dim_param
, v
, 1, 0);
2804 if (isl_stream_eat(s
, ISL_TOKEN_TO
))
2807 if (!isl_set_plain_is_universe(dom
))
2808 isl_die(s
->ctx
, isl_error_invalid
,
2809 "expecting universe parameter domain", goto error
);
2810 if (isl_stream_eat(s
, '{'))
2813 tuple
= read_tuple(s
, v
, 0, 0);
2816 if (isl_stream_eat_if_available(s
, ISL_TOKEN_TO
)) {
2821 has_expr
= tuple_has_expr(tuple
);
2825 isl_die(s
->ctx
, isl_error_invalid
,
2826 "expecting universe domain", goto error
);
2827 space
= isl_space_range(isl_multi_pw_aff_get_space(tuple
));
2828 set
= isl_set_universe(space
);
2829 dom
= isl_set_intersect_params(set
, dom
);
2830 isl_multi_pw_aff_free(tuple
);
2831 tuple
= read_tuple(s
, v
, 0, 0);
2836 if (isl_stream_eat(s
, '}'))
2839 n
= isl_multi_pw_aff_dim(tuple
, isl_dim_out
);
2840 dim
= isl_set_dim(dom
, isl_dim_all
);
2841 dom_space
= isl_set_get_space(dom
);
2842 space
= isl_space_range(isl_multi_pw_aff_get_space(tuple
));
2843 space
= isl_space_align_params(space
, isl_space_copy(dom_space
));
2844 if (!isl_space_is_params(dom_space
))
2845 space
= isl_space_map_from_domain_and_range(
2846 isl_space_copy(dom_space
), space
);
2847 isl_space_free(dom_space
);
2848 ma
= isl_multi_aff_alloc(space
);
2850 for (i
= 0; i
< n
; ++i
) {
2853 pa
= isl_multi_pw_aff_get_pw_aff(tuple
, i
);
2854 aff
= aff_from_pw_aff(pa
);
2857 if (isl_aff_involves_dims(aff
, isl_dim_in
, dim
, i
+ 1)) {
2859 isl_die(s
->ctx
, isl_error_invalid
,
2860 "not an affine expression", goto error
);
2862 aff
= isl_aff_drop_dims(aff
, isl_dim_in
, dim
, n
);
2863 space
= isl_multi_aff_get_domain_space(ma
);
2864 aff
= isl_aff_reset_domain_space(aff
, space
);
2865 ma
= isl_multi_aff_set_aff(ma
, i
, aff
);
2868 isl_multi_pw_aff_free(tuple
);
2873 isl_multi_pw_aff_free(tuple
);
2876 isl_multi_aff_free(ma
);
2880 __isl_give isl_multi_aff
*isl_multi_aff_read_from_str(isl_ctx
*ctx
,
2883 isl_multi_aff
*maff
;
2884 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2887 maff
= isl_stream_read_multi_aff(s
);
2892 __isl_give isl_union_pw_qpolynomial
*isl_stream_read_union_pw_qpolynomial(
2893 struct isl_stream
*s
)
2898 if (obj
.type
== isl_obj_pw_qpolynomial
) {
2899 obj
.type
= isl_obj_union_pw_qpolynomial
;
2900 obj
.v
= isl_union_pw_qpolynomial_from_pw_qpolynomial(obj
.v
);
2903 isl_assert(s
->ctx
, obj
.type
== isl_obj_union_pw_qpolynomial
,
2908 obj
.type
->free(obj
.v
);
2912 __isl_give isl_union_pw_qpolynomial
*isl_union_pw_qpolynomial_read_from_str(
2913 isl_ctx
*ctx
, const char *str
)
2915 isl_union_pw_qpolynomial
*upwqp
;
2916 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2919 upwqp
= isl_stream_read_union_pw_qpolynomial(s
);