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
));
1047 if (type
== isl_dim_param
) {
1048 if (isl_space_has_tuple_name(space
, isl_dim_set
) ||
1049 isl_space_is_wrapping(space
)) {
1050 isl_die(s
->ctx
, isl_error_invalid
,
1051 "parameter tuples cannot be named or nested",
1054 map
= isl_map_add_dims(map
, type
, n
);
1055 for (i
= 0; i
< n
; ++i
) {
1057 if (!isl_space_has_dim_name(space
, isl_dim_set
, i
))
1058 isl_die(s
->ctx
, isl_error_invalid
,
1059 "parameters must be named",
1061 id
= isl_space_get_dim_id(space
, isl_dim_set
, i
);
1062 map
= isl_map_set_dim_id(map
, isl_dim_param
, i
, id
);
1064 } else if (type
== isl_dim_in
) {
1067 set
= isl_set_universe(isl_space_copy(space
));
1069 set
= isl_set_set_rational(set
);
1070 set
= isl_set_intersect_params(set
, isl_map_params(map
));
1071 map
= isl_map_from_domain(set
);
1075 set
= isl_set_universe(isl_space_copy(space
));
1077 set
= isl_set_set_rational(set
);
1078 map
= isl_map_from_domain_and_range(isl_map_domain(map
), set
);
1081 for (i
= 0; i
< n
; ++i
) {
1088 pa
= isl_multi_pw_aff_get_pw_aff(tuple
, i
);
1089 space
= isl_pw_aff_get_domain_space(pa
);
1090 aff
= isl_aff_zero_on_domain(isl_local_space_from_space(space
));
1091 aff
= isl_aff_add_coefficient_si(aff
,
1092 isl_dim_in
, v
->n
- n
+ i
, -1);
1093 pa
= isl_pw_aff_add(pa
, isl_pw_aff_from_aff(aff
));
1095 pa
= isl_pw_aff_set_rational(pa
);
1096 set
= isl_pw_aff_zero_set(pa
);
1097 map_i
= isl_map_from_range(set
);
1098 map_i
= isl_map_reset_space(map_i
, isl_map_get_space(map
));
1099 map
= isl_map_intersect(map
, map_i
);
1102 isl_space_free(space
);
1103 isl_multi_pw_aff_free(tuple
);
1106 isl_space_free(space
);
1107 isl_multi_pw_aff_free(tuple
);
1112 static __isl_give isl_set
*construct_constraints(
1113 __isl_take isl_set
*set
, int type
,
1114 __isl_keep isl_pw_aff_list
*left
, __isl_keep isl_pw_aff_list
*right
,
1120 left
= isl_pw_aff_list_set_rational(left
);
1121 right
= isl_pw_aff_list_set_rational(right
);
1123 if (type
== ISL_TOKEN_LE
)
1124 cond
= isl_pw_aff_list_le_set(isl_pw_aff_list_copy(left
),
1125 isl_pw_aff_list_copy(right
));
1126 else if (type
== ISL_TOKEN_GE
)
1127 cond
= isl_pw_aff_list_ge_set(isl_pw_aff_list_copy(left
),
1128 isl_pw_aff_list_copy(right
));
1129 else if (type
== ISL_TOKEN_LT
)
1130 cond
= isl_pw_aff_list_lt_set(isl_pw_aff_list_copy(left
),
1131 isl_pw_aff_list_copy(right
));
1132 else if (type
== ISL_TOKEN_GT
)
1133 cond
= isl_pw_aff_list_gt_set(isl_pw_aff_list_copy(left
),
1134 isl_pw_aff_list_copy(right
));
1135 else if (type
== ISL_TOKEN_NE
)
1136 cond
= isl_pw_aff_list_ne_set(isl_pw_aff_list_copy(left
),
1137 isl_pw_aff_list_copy(right
));
1139 cond
= isl_pw_aff_list_eq_set(isl_pw_aff_list_copy(left
),
1140 isl_pw_aff_list_copy(right
));
1142 return isl_set_intersect(set
, cond
);
1145 static __isl_give isl_map
*add_constraint(struct isl_stream
*s
,
1146 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1148 struct isl_token
*tok
= NULL
;
1149 isl_pw_aff_list
*list1
= NULL
, *list2
= NULL
;
1152 set
= isl_map_wrap(map
);
1153 list1
= accept_affine_list(s
, isl_set_get_space(set
), v
);
1156 tok
= isl_stream_next_token(s
);
1157 if (!is_comparator(tok
)) {
1158 isl_stream_error(s
, tok
, "missing operator");
1160 isl_stream_push_token(s
, tok
);
1165 list2
= accept_affine_list(s
, isl_set_get_space(set
), v
);
1169 set
= construct_constraints(set
, tok
->type
, list1
, list2
,
1171 isl_token_free(tok
);
1172 isl_pw_aff_list_free(list1
);
1175 tok
= isl_stream_next_token(s
);
1176 if (!is_comparator(tok
)) {
1178 isl_stream_push_token(s
, tok
);
1182 isl_pw_aff_list_free(list1
);
1184 return isl_set_unwrap(set
);
1187 isl_token_free(tok
);
1188 isl_pw_aff_list_free(list1
);
1189 isl_pw_aff_list_free(list2
);
1194 static __isl_give isl_map
*read_exists(struct isl_stream
*s
,
1195 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1198 int seen_paren
= isl_stream_eat_if_available(s
, '(');
1200 map
= isl_map_from_domain(isl_map_wrap(map
));
1201 map
= read_defined_var_list(s
, v
, map
, rational
);
1203 if (isl_stream_eat(s
, ':'))
1206 map
= read_disjuncts(s
, v
, map
, rational
);
1207 map
= isl_set_unwrap(isl_map_domain(map
));
1209 vars_drop(v
, v
->n
- n
);
1210 if (seen_paren
&& isl_stream_eat(s
, ')'))
1219 /* Parse an expression between parentheses and push the result
1220 * back on the stream.
1222 * The parsed expression may be either an affine expression
1223 * or a condition. The first type is pushed onto the stream
1224 * as an isl_pw_aff, while the second is pushed as an isl_map.
1226 * If the initial token indicates the start of a condition,
1227 * we parse it as such.
1228 * Otherwise, we first parse an affine expression and push
1229 * that onto the stream. If the affine expression covers the
1230 * entire expression between parentheses, we return.
1231 * Otherwise, we assume that the affine expression is the
1232 * start of a condition and continue parsing.
1234 static int resolve_paren_expr(struct isl_stream
*s
,
1235 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1237 struct isl_token
*tok
, *tok2
;
1241 tok
= isl_stream_next_token(s
);
1242 if (!tok
|| tok
->type
!= '(')
1245 if (isl_stream_next_token_is(s
, '('))
1246 if (resolve_paren_expr(s
, v
, isl_map_copy(map
), rational
))
1249 if (isl_stream_next_token_is(s
, ISL_TOKEN_EXISTS
) ||
1250 isl_stream_next_token_is(s
, ISL_TOKEN_NOT
) ||
1251 isl_stream_next_token_is(s
, ISL_TOKEN_TRUE
) ||
1252 isl_stream_next_token_is(s
, ISL_TOKEN_FALSE
) ||
1253 isl_stream_next_token_is(s
, ISL_TOKEN_MAP
)) {
1254 map
= read_disjuncts(s
, v
, map
, rational
);
1255 if (isl_stream_eat(s
, ')'))
1257 tok
->type
= ISL_TOKEN_MAP
;
1259 isl_stream_push_token(s
, tok
);
1263 tok2
= isl_stream_next_token(s
);
1268 isl_stream_push_token(s
, tok2
);
1270 pwaff
= accept_affine(s
, isl_space_wrap(isl_map_get_space(map
)), v
);
1274 tok2
= isl_token_new(s
->ctx
, line
, col
, 0);
1277 tok2
->type
= ISL_TOKEN_AFF
;
1278 tok2
->u
.pwaff
= pwaff
;
1280 if (isl_stream_eat_if_available(s
, ')')) {
1281 isl_stream_push_token(s
, tok2
);
1282 isl_token_free(tok
);
1287 isl_stream_push_token(s
, tok2
);
1289 map
= read_disjuncts(s
, v
, map
, rational
);
1290 if (isl_stream_eat(s
, ')'))
1293 tok
->type
= ISL_TOKEN_MAP
;
1295 isl_stream_push_token(s
, tok
);
1299 isl_pw_aff_free(pwaff
);
1301 isl_token_free(tok
);
1306 static __isl_give isl_map
*read_conjunct(struct isl_stream
*s
,
1307 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1309 if (isl_stream_next_token_is(s
, '('))
1310 if (resolve_paren_expr(s
, v
, isl_map_copy(map
), rational
))
1313 if (isl_stream_next_token_is(s
, ISL_TOKEN_MAP
)) {
1314 struct isl_token
*tok
;
1315 tok
= isl_stream_next_token(s
);
1319 map
= isl_map_copy(tok
->u
.map
);
1320 isl_token_free(tok
);
1324 if (isl_stream_eat_if_available(s
, ISL_TOKEN_EXISTS
))
1325 return read_exists(s
, v
, map
, rational
);
1327 if (isl_stream_eat_if_available(s
, ISL_TOKEN_TRUE
))
1330 if (isl_stream_eat_if_available(s
, ISL_TOKEN_FALSE
)) {
1331 isl_space
*dim
= isl_map_get_space(map
);
1333 return isl_map_empty(dim
);
1336 return add_constraint(s
, v
, map
, rational
);
1342 static __isl_give isl_map
*read_conjuncts(struct isl_stream
*s
,
1343 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1348 negate
= isl_stream_eat_if_available(s
, ISL_TOKEN_NOT
);
1349 res
= read_conjunct(s
, v
, isl_map_copy(map
), rational
);
1351 res
= isl_map_subtract(isl_map_copy(map
), res
);
1353 while (isl_stream_eat_if_available(s
, ISL_TOKEN_AND
)) {
1356 negate
= isl_stream_eat_if_available(s
, ISL_TOKEN_NOT
);
1357 res_i
= read_conjunct(s
, v
, isl_map_copy(map
), rational
);
1359 res
= isl_map_subtract(res
, res_i
);
1361 res
= isl_map_intersect(res
, res_i
);
1368 static struct isl_map
*read_disjuncts(struct isl_stream
*s
,
1369 struct vars
*v
, __isl_take isl_map
*map
, int rational
)
1373 if (isl_stream_next_token_is(s
, '}')) {
1374 isl_space
*dim
= isl_map_get_space(map
);
1376 return isl_map_universe(dim
);
1379 res
= read_conjuncts(s
, v
, isl_map_copy(map
), rational
);
1380 while (isl_stream_eat_if_available(s
, ISL_TOKEN_OR
)) {
1383 res_i
= read_conjuncts(s
, v
, isl_map_copy(map
), rational
);
1384 res
= isl_map_union(res
, res_i
);
1391 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map
*bmap
, int pos
)
1393 if (pos
< isl_basic_map_dim(bmap
, isl_dim_out
))
1394 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
1395 isl_basic_map_dim(bmap
, isl_dim_in
) + pos
;
1396 pos
-= isl_basic_map_dim(bmap
, isl_dim_out
);
1398 if (pos
< isl_basic_map_dim(bmap
, isl_dim_in
))
1399 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) + pos
;
1400 pos
-= isl_basic_map_dim(bmap
, isl_dim_in
);
1402 if (pos
< isl_basic_map_dim(bmap
, isl_dim_div
))
1403 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
1404 isl_basic_map_dim(bmap
, isl_dim_in
) +
1405 isl_basic_map_dim(bmap
, isl_dim_out
) + pos
;
1406 pos
-= isl_basic_map_dim(bmap
, isl_dim_div
);
1408 if (pos
< isl_basic_map_dim(bmap
, isl_dim_param
))
1414 static __isl_give isl_basic_map
*basic_map_read_polylib_constraint(
1415 struct isl_stream
*s
, __isl_take isl_basic_map
*bmap
)
1418 struct isl_token
*tok
;
1428 nparam
= isl_basic_map_dim(bmap
, isl_dim_param
);
1429 dim
= isl_basic_map_dim(bmap
, isl_dim_out
);
1431 tok
= isl_stream_next_token(s
);
1432 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1433 isl_stream_error(s
, tok
, "expecting coefficient");
1435 isl_stream_push_token(s
, tok
);
1438 if (!tok
->on_new_line
) {
1439 isl_stream_error(s
, tok
, "coefficient should appear on new line");
1440 isl_stream_push_token(s
, tok
);
1444 type
= isl_int_get_si(tok
->u
.v
);
1445 isl_token_free(tok
);
1447 isl_assert(s
->ctx
, type
== 0 || type
== 1, goto error
);
1449 k
= isl_basic_map_alloc_equality(bmap
);
1452 k
= isl_basic_map_alloc_inequality(bmap
);
1458 for (j
= 0; j
< 1 + isl_basic_map_total_dim(bmap
); ++j
) {
1460 tok
= isl_stream_next_token(s
);
1461 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1462 isl_stream_error(s
, tok
, "expecting coefficient");
1464 isl_stream_push_token(s
, tok
);
1467 if (tok
->on_new_line
) {
1468 isl_stream_error(s
, tok
,
1469 "coefficient should not appear on new line");
1470 isl_stream_push_token(s
, tok
);
1473 pos
= polylib_pos_to_isl_pos(bmap
, j
);
1474 isl_int_set(c
[pos
], tok
->u
.v
);
1475 isl_token_free(tok
);
1480 isl_basic_map_free(bmap
);
1484 static __isl_give isl_basic_map
*basic_map_read_polylib(struct isl_stream
*s
)
1487 struct isl_token
*tok
;
1488 struct isl_token
*tok2
;
1491 unsigned in
= 0, out
, local
= 0;
1492 struct isl_basic_map
*bmap
= NULL
;
1495 tok
= isl_stream_next_token(s
);
1497 isl_stream_error(s
, NULL
, "unexpected EOF");
1500 tok2
= isl_stream_next_token(s
);
1502 isl_token_free(tok
);
1503 isl_stream_error(s
, NULL
, "unexpected EOF");
1506 if (tok
->type
!= ISL_TOKEN_VALUE
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
1507 isl_stream_push_token(s
, tok2
);
1508 isl_stream_push_token(s
, tok
);
1509 isl_stream_error(s
, NULL
,
1510 "expecting constraint matrix dimensions");
1513 n_row
= isl_int_get_si(tok
->u
.v
);
1514 n_col
= isl_int_get_si(tok2
->u
.v
);
1515 on_new_line
= tok2
->on_new_line
;
1516 isl_token_free(tok2
);
1517 isl_token_free(tok
);
1518 isl_assert(s
->ctx
, !on_new_line
, return NULL
);
1519 isl_assert(s
->ctx
, n_row
>= 0, return NULL
);
1520 isl_assert(s
->ctx
, n_col
>= 2 + nparam
, return NULL
);
1521 tok
= isl_stream_next_token_on_same_line(s
);
1523 if (tok
->type
!= ISL_TOKEN_VALUE
) {
1524 isl_stream_error(s
, tok
,
1525 "expecting number of output dimensions");
1526 isl_stream_push_token(s
, tok
);
1529 out
= isl_int_get_si(tok
->u
.v
);
1530 isl_token_free(tok
);
1532 tok
= isl_stream_next_token_on_same_line(s
);
1533 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1534 isl_stream_error(s
, tok
,
1535 "expecting number of input dimensions");
1537 isl_stream_push_token(s
, tok
);
1540 in
= isl_int_get_si(tok
->u
.v
);
1541 isl_token_free(tok
);
1543 tok
= isl_stream_next_token_on_same_line(s
);
1544 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1545 isl_stream_error(s
, tok
,
1546 "expecting number of existentials");
1548 isl_stream_push_token(s
, tok
);
1551 local
= isl_int_get_si(tok
->u
.v
);
1552 isl_token_free(tok
);
1554 tok
= isl_stream_next_token_on_same_line(s
);
1555 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1556 isl_stream_error(s
, tok
,
1557 "expecting number of parameters");
1559 isl_stream_push_token(s
, tok
);
1562 nparam
= isl_int_get_si(tok
->u
.v
);
1563 isl_token_free(tok
);
1564 if (n_col
!= 1 + out
+ in
+ local
+ nparam
+ 1) {
1565 isl_stream_error(s
, NULL
,
1566 "dimensions don't match");
1570 out
= n_col
- 2 - nparam
;
1571 bmap
= isl_basic_map_alloc(s
->ctx
, nparam
, in
, out
, local
, n_row
, n_row
);
1575 for (i
= 0; i
< local
; ++i
) {
1576 int k
= isl_basic_map_alloc_div(bmap
);
1579 isl_seq_clr(bmap
->div
[k
], 1 + 1 + nparam
+ in
+ out
+ local
);
1582 for (i
= 0; i
< n_row
; ++i
)
1583 bmap
= basic_map_read_polylib_constraint(s
, bmap
);
1585 tok
= isl_stream_next_token_on_same_line(s
);
1587 isl_stream_error(s
, tok
, "unexpected extra token on line");
1588 isl_stream_push_token(s
, tok
);
1592 bmap
= isl_basic_map_simplify(bmap
);
1593 bmap
= isl_basic_map_finalize(bmap
);
1596 isl_basic_map_free(bmap
);
1600 static struct isl_map
*map_read_polylib(struct isl_stream
*s
)
1602 struct isl_token
*tok
;
1603 struct isl_token
*tok2
;
1605 struct isl_map
*map
;
1607 tok
= isl_stream_next_token(s
);
1609 isl_stream_error(s
, NULL
, "unexpected EOF");
1612 tok2
= isl_stream_next_token_on_same_line(s
);
1613 if (tok2
&& tok2
->type
== ISL_TOKEN_VALUE
) {
1614 isl_stream_push_token(s
, tok2
);
1615 isl_stream_push_token(s
, tok
);
1616 return isl_map_from_basic_map(basic_map_read_polylib(s
));
1619 isl_stream_error(s
, tok2
, "unexpected token");
1620 isl_stream_push_token(s
, tok2
);
1621 isl_stream_push_token(s
, tok
);
1624 n
= isl_int_get_si(tok
->u
.v
);
1625 isl_token_free(tok
);
1627 isl_assert(s
->ctx
, n
>= 1, return NULL
);
1629 map
= isl_map_from_basic_map(basic_map_read_polylib(s
));
1631 for (i
= 1; map
&& i
< n
; ++i
)
1632 map
= isl_map_union(map
,
1633 isl_map_from_basic_map(basic_map_read_polylib(s
)));
1638 static int optional_power(struct isl_stream
*s
)
1641 struct isl_token
*tok
;
1643 tok
= isl_stream_next_token(s
);
1646 if (tok
->type
!= '^') {
1647 isl_stream_push_token(s
, tok
);
1650 isl_token_free(tok
);
1651 tok
= isl_stream_next_token(s
);
1652 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1653 isl_stream_error(s
, tok
, "expecting exponent");
1655 isl_stream_push_token(s
, tok
);
1658 pow
= isl_int_get_si(tok
->u
.v
);
1659 isl_token_free(tok
);
1663 static __isl_give isl_pw_qpolynomial
*read_term(struct isl_stream
*s
,
1664 __isl_keep isl_map
*map
, struct vars
*v
);
1666 static __isl_give isl_pw_qpolynomial
*read_factor(struct isl_stream
*s
,
1667 __isl_keep isl_map
*map
, struct vars
*v
)
1669 isl_pw_qpolynomial
*pwqp
;
1670 struct isl_token
*tok
;
1672 tok
= next_token(s
);
1674 isl_stream_error(s
, NULL
, "unexpected EOF");
1677 if (tok
->type
== '(') {
1680 isl_token_free(tok
);
1681 pwqp
= read_term(s
, map
, v
);
1684 if (isl_stream_eat(s
, ')'))
1686 pow
= optional_power(s
);
1687 pwqp
= isl_pw_qpolynomial_pow(pwqp
, pow
);
1688 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
1689 struct isl_token
*tok2
;
1690 tok2
= isl_stream_next_token(s
);
1691 isl_qpolynomial
*qp
;
1692 if (tok2
&& tok2
->type
== '/') {
1693 isl_token_free(tok2
);
1694 tok2
= next_token(s
);
1695 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
1696 isl_stream_error(s
, tok2
, "expected denominator");
1697 isl_token_free(tok
);
1698 isl_token_free(tok2
);
1701 qp
= isl_qpolynomial_rat_cst_on_domain(isl_map_get_space(map
),
1702 tok
->u
.v
, tok2
->u
.v
);
1703 isl_token_free(tok2
);
1705 isl_stream_push_token(s
, tok2
);
1706 qp
= isl_qpolynomial_cst_on_domain(isl_map_get_space(map
),
1709 isl_token_free(tok
);
1710 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1711 } else if (tok
->type
== ISL_TOKEN_INFTY
) {
1712 isl_qpolynomial
*qp
;
1713 isl_token_free(tok
);
1714 qp
= isl_qpolynomial_infty_on_domain(isl_map_get_space(map
));
1715 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1716 } else if (tok
->type
== ISL_TOKEN_NAN
) {
1717 isl_qpolynomial
*qp
;
1718 isl_token_free(tok
);
1719 qp
= isl_qpolynomial_nan_on_domain(isl_map_get_space(map
));
1720 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1721 } else if (tok
->type
== ISL_TOKEN_IDENT
) {
1723 int pos
= vars_pos(v
, tok
->u
.s
, -1);
1725 isl_qpolynomial
*qp
;
1727 isl_token_free(tok
);
1731 vars_drop(v
, v
->n
- n
);
1732 isl_stream_error(s
, tok
, "unknown identifier");
1733 isl_token_free(tok
);
1736 isl_token_free(tok
);
1737 pow
= optional_power(s
);
1738 qp
= isl_qpolynomial_var_pow_on_domain(isl_map_get_space(map
), pos
, pow
);
1739 pwqp
= isl_pw_qpolynomial_from_qpolynomial(qp
);
1740 } else if (tok
->type
== '[') {
1744 isl_stream_push_token(s
, tok
);
1745 pwaff
= accept_div(s
, isl_map_get_space(map
), v
);
1746 pow
= optional_power(s
);
1747 pwqp
= isl_pw_qpolynomial_from_pw_aff(pwaff
);
1748 pwqp
= isl_pw_qpolynomial_pow(pwqp
, pow
);
1749 } else if (tok
->type
== '-') {
1750 isl_token_free(tok
);
1751 pwqp
= read_factor(s
, map
, v
);
1752 pwqp
= isl_pw_qpolynomial_neg(pwqp
);
1754 isl_stream_error(s
, tok
, "unexpected isl_token");
1755 isl_stream_push_token(s
, tok
);
1759 if (isl_stream_eat_if_available(s
, '*') ||
1760 isl_stream_next_token_is(s
, ISL_TOKEN_IDENT
)) {
1761 isl_pw_qpolynomial
*pwqp2
;
1763 pwqp2
= read_factor(s
, map
, v
);
1764 pwqp
= isl_pw_qpolynomial_mul(pwqp
, pwqp2
);
1769 isl_pw_qpolynomial_free(pwqp
);
1773 static __isl_give isl_pw_qpolynomial
*read_term(struct isl_stream
*s
,
1774 __isl_keep isl_map
*map
, struct vars
*v
)
1776 struct isl_token
*tok
;
1777 isl_pw_qpolynomial
*pwqp
;
1779 pwqp
= read_factor(s
, map
, v
);
1782 tok
= next_token(s
);
1786 if (tok
->type
== '+') {
1787 isl_pw_qpolynomial
*pwqp2
;
1789 isl_token_free(tok
);
1790 pwqp2
= read_factor(s
, map
, v
);
1791 pwqp
= isl_pw_qpolynomial_add(pwqp
, pwqp2
);
1792 } else if (tok
->type
== '-') {
1793 isl_pw_qpolynomial
*pwqp2
;
1795 isl_token_free(tok
);
1796 pwqp2
= read_factor(s
, map
, v
);
1797 pwqp
= isl_pw_qpolynomial_sub(pwqp
, pwqp2
);
1798 } else if (tok
->type
== ISL_TOKEN_VALUE
&&
1799 isl_int_is_neg(tok
->u
.v
)) {
1800 isl_pw_qpolynomial
*pwqp2
;
1802 isl_stream_push_token(s
, tok
);
1803 pwqp2
= read_factor(s
, map
, v
);
1804 pwqp
= isl_pw_qpolynomial_add(pwqp
, pwqp2
);
1806 isl_stream_push_token(s
, tok
);
1814 static __isl_give isl_map
*read_optional_disjuncts(struct isl_stream
*s
,
1815 __isl_take isl_map
*map
, struct vars
*v
, int rational
)
1817 struct isl_token
*tok
;
1819 tok
= isl_stream_next_token(s
);
1821 isl_stream_error(s
, NULL
, "unexpected EOF");
1824 if (tok
->type
== ':' ||
1825 (tok
->type
== ISL_TOKEN_OR
&& !strcmp(tok
->u
.s
, "|"))) {
1826 isl_token_free(tok
);
1827 map
= read_disjuncts(s
, v
, map
, rational
);
1829 isl_stream_push_token(s
, tok
);
1837 static struct isl_obj
obj_read_poly(struct isl_stream
*s
,
1838 __isl_take isl_map
*map
, struct vars
*v
, int n
)
1840 struct isl_obj obj
= { isl_obj_pw_qpolynomial
, NULL
};
1841 isl_pw_qpolynomial
*pwqp
;
1842 struct isl_set
*set
;
1844 pwqp
= read_term(s
, map
, v
);
1845 map
= read_optional_disjuncts(s
, map
, v
, 0);
1846 set
= isl_map_range(map
);
1848 pwqp
= isl_pw_qpolynomial_intersect_domain(pwqp
, set
);
1850 vars_drop(v
, v
->n
- n
);
1856 static struct isl_obj
obj_read_poly_or_fold(struct isl_stream
*s
,
1857 __isl_take isl_set
*set
, struct vars
*v
, int n
)
1859 struct isl_obj obj
= { isl_obj_pw_qpolynomial_fold
, NULL
};
1860 isl_pw_qpolynomial
*pwqp
;
1861 isl_pw_qpolynomial_fold
*pwf
= NULL
;
1863 if (!isl_stream_eat_if_available(s
, ISL_TOKEN_MAX
))
1864 return obj_read_poly(s
, set
, v
, n
);
1866 if (isl_stream_eat(s
, '('))
1869 pwqp
= read_term(s
, set
, v
);
1870 pwf
= isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max
, pwqp
);
1872 while (isl_stream_eat_if_available(s
, ',')) {
1873 isl_pw_qpolynomial_fold
*pwf_i
;
1874 pwqp
= read_term(s
, set
, v
);
1875 pwf_i
= isl_pw_qpolynomial_fold_from_pw_qpolynomial(isl_fold_max
,
1877 pwf
= isl_pw_qpolynomial_fold_fold(pwf
, pwf_i
);
1880 if (isl_stream_eat(s
, ')'))
1883 set
= read_optional_disjuncts(s
, set
, v
, 0);
1884 pwf
= isl_pw_qpolynomial_fold_intersect_domain(pwf
, set
);
1886 vars_drop(v
, v
->n
- n
);
1892 isl_pw_qpolynomial_fold_free(pwf
);
1893 obj
.type
= isl_obj_none
;
1897 static int is_rational(struct isl_stream
*s
)
1899 struct isl_token
*tok
;
1901 tok
= isl_stream_next_token(s
);
1904 if (tok
->type
== ISL_TOKEN_RAT
&& isl_stream_next_token_is(s
, ':')) {
1905 isl_token_free(tok
);
1906 isl_stream_eat(s
, ':');
1910 isl_stream_push_token(s
, tok
);
1915 static struct isl_obj
obj_read_body(struct isl_stream
*s
,
1916 __isl_take isl_map
*map
, struct vars
*v
)
1918 struct isl_token
*tok
;
1919 struct isl_obj obj
= { isl_obj_set
, NULL
};
1923 rational
= is_rational(s
);
1925 map
= isl_map_set_rational(map
);
1927 if (isl_stream_next_token_is(s
, ':')) {
1928 obj
.type
= isl_obj_set
;
1929 obj
.v
= read_optional_disjuncts(s
, map
, v
, rational
);
1933 if (!next_is_tuple(s
))
1934 return obj_read_poly_or_fold(s
, map
, v
, n
);
1936 map
= read_map_tuple(s
, map
, isl_dim_in
, v
, rational
, 0);
1939 tok
= isl_stream_next_token(s
);
1942 if (tok
->type
== ISL_TOKEN_TO
) {
1943 obj
.type
= isl_obj_map
;
1944 isl_token_free(tok
);
1945 if (!next_is_tuple(s
)) {
1946 isl_set
*set
= isl_map_domain(map
);
1947 return obj_read_poly_or_fold(s
, set
, v
, n
);
1949 map
= read_map_tuple(s
, map
, isl_dim_out
, v
, rational
, 0);
1953 map
= isl_map_domain(map
);
1954 isl_stream_push_token(s
, tok
);
1957 map
= read_optional_disjuncts(s
, map
, v
, rational
);
1959 vars_drop(v
, v
->n
- n
);
1965 obj
.type
= isl_obj_none
;
1969 static struct isl_obj
to_union(isl_ctx
*ctx
, struct isl_obj obj
)
1971 if (obj
.type
== isl_obj_map
) {
1972 obj
.v
= isl_union_map_from_map(obj
.v
);
1973 obj
.type
= isl_obj_union_map
;
1974 } else if (obj
.type
== isl_obj_set
) {
1975 obj
.v
= isl_union_set_from_set(obj
.v
);
1976 obj
.type
= isl_obj_union_set
;
1977 } else if (obj
.type
== isl_obj_pw_qpolynomial
) {
1978 obj
.v
= isl_union_pw_qpolynomial_from_pw_qpolynomial(obj
.v
);
1979 obj
.type
= isl_obj_union_pw_qpolynomial
;
1980 } else if (obj
.type
== isl_obj_pw_qpolynomial_fold
) {
1981 obj
.v
= isl_union_pw_qpolynomial_fold_from_pw_qpolynomial_fold(obj
.v
);
1982 obj
.type
= isl_obj_union_pw_qpolynomial_fold
;
1984 isl_assert(ctx
, 0, goto error
);
1987 obj
.type
->free(obj
.v
);
1988 obj
.type
= isl_obj_none
;
1992 static struct isl_obj
obj_add(struct isl_ctx
*ctx
,
1993 struct isl_obj obj1
, struct isl_obj obj2
)
1995 if (obj1
.type
== isl_obj_set
&& obj2
.type
== isl_obj_union_set
)
1996 obj1
= to_union(ctx
, obj1
);
1997 if (obj1
.type
== isl_obj_union_set
&& obj2
.type
== isl_obj_set
)
1998 obj2
= to_union(ctx
, obj2
);
1999 if (obj1
.type
== isl_obj_map
&& obj2
.type
== isl_obj_union_map
)
2000 obj1
= to_union(ctx
, obj1
);
2001 if (obj1
.type
== isl_obj_union_map
&& obj2
.type
== isl_obj_map
)
2002 obj2
= to_union(ctx
, obj2
);
2003 if (obj1
.type
== isl_obj_pw_qpolynomial
&&
2004 obj2
.type
== isl_obj_union_pw_qpolynomial
)
2005 obj1
= to_union(ctx
, obj1
);
2006 if (obj1
.type
== isl_obj_union_pw_qpolynomial
&&
2007 obj2
.type
== isl_obj_pw_qpolynomial
)
2008 obj2
= to_union(ctx
, obj2
);
2009 if (obj1
.type
== isl_obj_pw_qpolynomial_fold
&&
2010 obj2
.type
== isl_obj_union_pw_qpolynomial_fold
)
2011 obj1
= to_union(ctx
, obj1
);
2012 if (obj1
.type
== isl_obj_union_pw_qpolynomial_fold
&&
2013 obj2
.type
== isl_obj_pw_qpolynomial_fold
)
2014 obj2
= to_union(ctx
, obj2
);
2015 isl_assert(ctx
, obj1
.type
== obj2
.type
, goto error
);
2016 if (obj1
.type
== isl_obj_map
&& !isl_map_has_equal_space(obj1
.v
, obj2
.v
)) {
2017 obj1
= to_union(ctx
, obj1
);
2018 obj2
= to_union(ctx
, obj2
);
2020 if (obj1
.type
== isl_obj_set
&& !isl_set_has_equal_space(obj1
.v
, obj2
.v
)) {
2021 obj1
= to_union(ctx
, obj1
);
2022 obj2
= to_union(ctx
, obj2
);
2024 if (obj1
.type
== isl_obj_pw_qpolynomial
&&
2025 !isl_pw_qpolynomial_has_equal_space(obj1
.v
, obj2
.v
)) {
2026 obj1
= to_union(ctx
, obj1
);
2027 obj2
= to_union(ctx
, obj2
);
2029 if (obj1
.type
== isl_obj_pw_qpolynomial_fold
&&
2030 !isl_pw_qpolynomial_fold_has_equal_space(obj1
.v
, obj2
.v
)) {
2031 obj1
= to_union(ctx
, obj1
);
2032 obj2
= to_union(ctx
, obj2
);
2034 obj1
.v
= obj1
.type
->add(obj1
.v
, obj2
.v
);
2037 obj1
.type
->free(obj1
.v
);
2038 obj2
.type
->free(obj2
.v
);
2039 obj1
.type
= isl_obj_none
;
2044 static struct isl_obj
obj_read(struct isl_stream
*s
)
2046 isl_map
*map
= NULL
;
2047 struct isl_token
*tok
;
2048 struct vars
*v
= NULL
;
2049 struct isl_obj obj
= { isl_obj_set
, NULL
};
2051 tok
= next_token(s
);
2053 isl_stream_error(s
, NULL
, "unexpected EOF");
2056 if (tok
->type
== ISL_TOKEN_VALUE
) {
2057 struct isl_token
*tok2
;
2058 struct isl_map
*map
;
2060 tok2
= isl_stream_next_token(s
);
2061 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
||
2062 isl_int_is_neg(tok2
->u
.v
)) {
2064 isl_stream_push_token(s
, tok2
);
2065 obj
.type
= isl_obj_int
;
2066 obj
.v
= isl_int_obj_alloc(s
->ctx
, tok
->u
.v
);
2067 isl_token_free(tok
);
2070 isl_stream_push_token(s
, tok2
);
2071 isl_stream_push_token(s
, tok
);
2072 map
= map_read_polylib(s
);
2075 if (isl_map_may_be_set(map
))
2076 obj
.v
= isl_map_range(map
);
2078 obj
.type
= isl_obj_map
;
2083 v
= vars_new(s
->ctx
);
2085 isl_stream_push_token(s
, tok
);
2088 map
= isl_map_universe(isl_space_params_alloc(s
->ctx
, 0));
2089 if (tok
->type
== '[') {
2090 isl_stream_push_token(s
, tok
);
2091 map
= read_map_tuple(s
, map
, isl_dim_param
, v
, 0, 0);
2094 tok
= isl_stream_next_token(s
);
2095 if (!tok
|| tok
->type
!= ISL_TOKEN_TO
) {
2096 isl_stream_error(s
, tok
, "expecting '->'");
2098 isl_stream_push_token(s
, tok
);
2101 isl_token_free(tok
);
2102 tok
= isl_stream_next_token(s
);
2104 if (!tok
|| tok
->type
!= '{') {
2105 isl_stream_error(s
, tok
, "expecting '{'");
2107 isl_stream_push_token(s
, tok
);
2110 isl_token_free(tok
);
2112 tok
= isl_stream_next_token(s
);
2115 else if (tok
->type
== ISL_TOKEN_IDENT
&& !strcmp(tok
->u
.s
, "Sym")) {
2116 isl_token_free(tok
);
2117 if (isl_stream_eat(s
, '='))
2119 map
= read_map_tuple(s
, map
, isl_dim_param
, v
, 0, 1);
2122 } else if (tok
->type
== '}') {
2123 obj
.type
= isl_obj_union_set
;
2124 obj
.v
= isl_union_set_empty(isl_map_get_space(map
));
2125 isl_token_free(tok
);
2128 isl_stream_push_token(s
, tok
);
2133 o
= obj_read_body(s
, isl_map_copy(map
), v
);
2134 if (o
.type
== isl_obj_none
|| !o
.v
)
2139 obj
= obj_add(s
->ctx
, obj
, o
);
2140 if (obj
.type
== isl_obj_none
|| !obj
.v
)
2143 tok
= isl_stream_next_token(s
);
2144 if (!tok
|| tok
->type
!= ';')
2146 isl_token_free(tok
);
2147 if (isl_stream_next_token_is(s
, '}')) {
2148 tok
= isl_stream_next_token(s
);
2153 if (tok
&& tok
->type
== '}') {
2154 isl_token_free(tok
);
2156 isl_stream_error(s
, tok
, "unexpected isl_token");
2158 isl_token_free(tok
);
2168 obj
.type
->free(obj
.v
);
2175 struct isl_obj
isl_stream_read_obj(struct isl_stream
*s
)
2180 __isl_give isl_map
*isl_stream_read_map(struct isl_stream
*s
)
2186 isl_assert(s
->ctx
, obj
.type
== isl_obj_map
||
2187 obj
.type
== isl_obj_set
, goto error
);
2189 if (obj
.type
== isl_obj_set
)
2190 obj
.v
= isl_map_from_range(obj
.v
);
2194 obj
.type
->free(obj
.v
);
2198 __isl_give isl_set
*isl_stream_read_set(struct isl_stream
*s
)
2204 if (obj
.type
== isl_obj_map
&& isl_map_may_be_set(obj
.v
)) {
2205 obj
.v
= isl_map_range(obj
.v
);
2206 obj
.type
= isl_obj_set
;
2208 isl_assert(s
->ctx
, obj
.type
== isl_obj_set
, goto error
);
2213 obj
.type
->free(obj
.v
);
2217 __isl_give isl_union_map
*isl_stream_read_union_map(struct isl_stream
*s
)
2222 if (obj
.type
== isl_obj_map
) {
2223 obj
.type
= isl_obj_union_map
;
2224 obj
.v
= isl_union_map_from_map(obj
.v
);
2226 if (obj
.type
== isl_obj_set
) {
2227 obj
.type
= isl_obj_union_set
;
2228 obj
.v
= isl_union_set_from_set(obj
.v
);
2230 if (obj
.v
&& obj
.type
== isl_obj_union_set
&&
2231 isl_union_set_is_empty(obj
.v
))
2232 obj
.type
= isl_obj_union_map
;
2233 if (obj
.v
&& obj
.type
!= isl_obj_union_map
)
2234 isl_die(s
->ctx
, isl_error_invalid
, "invalid input", goto error
);
2238 obj
.type
->free(obj
.v
);
2242 __isl_give isl_union_set
*isl_stream_read_union_set(struct isl_stream
*s
)
2247 if (obj
.type
== isl_obj_set
) {
2248 obj
.type
= isl_obj_union_set
;
2249 obj
.v
= isl_union_set_from_set(obj
.v
);
2252 isl_assert(s
->ctx
, obj
.type
== isl_obj_union_set
, goto error
);
2256 obj
.type
->free(obj
.v
);
2260 static __isl_give isl_basic_map
*basic_map_read(struct isl_stream
*s
)
2263 struct isl_map
*map
;
2264 struct isl_basic_map
*bmap
;
2271 isl_assert(map
->ctx
, map
->n
<= 1, goto error
);
2274 bmap
= isl_basic_map_empty_like_map(map
);
2276 bmap
= isl_basic_map_copy(map
->p
[0]);
2286 static __isl_give isl_basic_set
*basic_set_read(struct isl_stream
*s
)
2288 isl_basic_map
*bmap
;
2289 bmap
= basic_map_read(s
);
2292 if (!isl_basic_map_may_be_set(bmap
))
2293 isl_die(s
->ctx
, isl_error_invalid
,
2294 "input is not a set", goto error
);
2295 return isl_basic_map_range(bmap
);
2297 isl_basic_map_free(bmap
);
2301 __isl_give isl_basic_map
*isl_basic_map_read_from_file(isl_ctx
*ctx
,
2304 struct isl_basic_map
*bmap
;
2305 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2308 bmap
= basic_map_read(s
);
2313 __isl_give isl_basic_set
*isl_basic_set_read_from_file(isl_ctx
*ctx
,
2316 isl_basic_set
*bset
;
2317 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2320 bset
= basic_set_read(s
);
2325 struct isl_basic_map
*isl_basic_map_read_from_str(struct isl_ctx
*ctx
,
2328 struct isl_basic_map
*bmap
;
2329 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2332 bmap
= basic_map_read(s
);
2337 struct isl_basic_set
*isl_basic_set_read_from_str(struct isl_ctx
*ctx
,
2340 isl_basic_set
*bset
;
2341 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2344 bset
= basic_set_read(s
);
2349 __isl_give isl_map
*isl_map_read_from_file(struct isl_ctx
*ctx
,
2352 struct isl_map
*map
;
2353 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2356 map
= isl_stream_read_map(s
);
2361 __isl_give isl_map
*isl_map_read_from_str(struct isl_ctx
*ctx
,
2364 struct isl_map
*map
;
2365 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2368 map
= isl_stream_read_map(s
);
2373 __isl_give isl_set
*isl_set_read_from_file(struct isl_ctx
*ctx
,
2377 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2380 set
= isl_stream_read_set(s
);
2385 struct isl_set
*isl_set_read_from_str(struct isl_ctx
*ctx
,
2389 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2392 set
= isl_stream_read_set(s
);
2397 __isl_give isl_union_map
*isl_union_map_read_from_file(isl_ctx
*ctx
,
2400 isl_union_map
*umap
;
2401 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2404 umap
= isl_stream_read_union_map(s
);
2409 __isl_give isl_union_map
*isl_union_map_read_from_str(struct isl_ctx
*ctx
,
2412 isl_union_map
*umap
;
2413 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2416 umap
= isl_stream_read_union_map(s
);
2421 __isl_give isl_union_set
*isl_union_set_read_from_file(isl_ctx
*ctx
,
2424 isl_union_set
*uset
;
2425 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2428 uset
= isl_stream_read_union_set(s
);
2433 __isl_give isl_union_set
*isl_union_set_read_from_str(struct isl_ctx
*ctx
,
2436 isl_union_set
*uset
;
2437 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2440 uset
= isl_stream_read_union_set(s
);
2445 static __isl_give isl_vec
*isl_vec_read_polylib(struct isl_stream
*s
)
2447 struct isl_vec
*vec
= NULL
;
2448 struct isl_token
*tok
;
2452 tok
= isl_stream_next_token(s
);
2453 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
2454 isl_stream_error(s
, tok
, "expecting vector length");
2458 size
= isl_int_get_si(tok
->u
.v
);
2459 isl_token_free(tok
);
2461 vec
= isl_vec_alloc(s
->ctx
, size
);
2463 for (j
= 0; j
< size
; ++j
) {
2464 tok
= isl_stream_next_token(s
);
2465 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
2466 isl_stream_error(s
, tok
, "expecting constant value");
2469 isl_int_set(vec
->el
[j
], tok
->u
.v
);
2470 isl_token_free(tok
);
2475 isl_token_free(tok
);
2480 static __isl_give isl_vec
*vec_read(struct isl_stream
*s
)
2482 return isl_vec_read_polylib(s
);
2485 __isl_give isl_vec
*isl_vec_read_from_file(isl_ctx
*ctx
, FILE *input
)
2488 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2496 __isl_give isl_pw_qpolynomial
*isl_stream_read_pw_qpolynomial(
2497 struct isl_stream
*s
)
2503 isl_assert(s
->ctx
, obj
.type
== isl_obj_pw_qpolynomial
,
2508 obj
.type
->free(obj
.v
);
2512 __isl_give isl_pw_qpolynomial
*isl_pw_qpolynomial_read_from_str(isl_ctx
*ctx
,
2515 isl_pw_qpolynomial
*pwqp
;
2516 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2519 pwqp
= isl_stream_read_pw_qpolynomial(s
);
2524 __isl_give isl_pw_qpolynomial
*isl_pw_qpolynomial_read_from_file(isl_ctx
*ctx
,
2527 isl_pw_qpolynomial
*pwqp
;
2528 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
2531 pwqp
= isl_stream_read_pw_qpolynomial(s
);
2536 /* Is the next token an identifer not in "v"?
2538 static int next_is_fresh_ident(struct isl_stream
*s
, struct vars
*v
)
2542 struct isl_token
*tok
;
2544 tok
= isl_stream_next_token(s
);
2547 fresh
= tok
->type
== ISL_TOKEN_IDENT
&& vars_pos(v
, tok
->u
.s
, -1) >= n
;
2548 isl_stream_push_token(s
, tok
);
2550 vars_drop(v
, v
->n
- n
);
2555 /* First read the domain of the affine expression, which may be
2556 * a parameter space or a set.
2557 * The tricky part is that we don't know if the domain is a set or not,
2558 * so when we are trying to read the domain, we may actually be reading
2559 * the affine expression itself (defined on a parameter domains)
2560 * If the tuple we are reading is named, we assume it's the domain.
2561 * Also, if inside the tuple, the first thing we find is a nested tuple
2562 * or a new identifier, we again assume it's the domain.
2563 * Otherwise, we assume we are reading an affine expression.
2565 static __isl_give isl_set
*read_aff_domain(struct isl_stream
*s
,
2566 __isl_take isl_set
*dom
, struct vars
*v
)
2568 struct isl_token
*tok
;
2570 tok
= isl_stream_next_token(s
);
2571 if (tok
&& (tok
->type
== ISL_TOKEN_IDENT
|| tok
->is_keyword
)) {
2572 isl_stream_push_token(s
, tok
);
2573 return read_map_tuple(s
, dom
, isl_dim_set
, v
, 1, 0);
2575 if (!tok
|| tok
->type
!= '[') {
2576 isl_stream_error(s
, tok
, "expecting '['");
2579 if (next_is_tuple(s
) || next_is_fresh_ident(s
, v
)) {
2580 isl_stream_push_token(s
, tok
);
2581 dom
= read_map_tuple(s
, dom
, isl_dim_set
, v
, 1, 0);
2583 isl_stream_push_token(s
, tok
);
2588 isl_stream_push_token(s
, tok
);
2594 /* Read an affine expression from "s".
2596 __isl_give isl_aff
*isl_stream_read_aff(struct isl_stream
*s
)
2601 ma
= isl_stream_read_multi_aff(s
);
2604 if (isl_multi_aff_dim(ma
, isl_dim_out
) != 1)
2605 isl_die(s
->ctx
, isl_error_invalid
,
2606 "expecting single affine expression",
2609 aff
= isl_multi_aff_get_aff(ma
, 0);
2610 isl_multi_aff_free(ma
);
2613 isl_multi_aff_free(ma
);
2617 /* Read a piecewise affine expression from "s" with domain (space) "dom".
2619 static __isl_give isl_pw_aff
*read_pw_aff_with_dom(struct isl_stream
*s
,
2620 __isl_take isl_set
*dom
, struct vars
*v
)
2622 isl_pw_aff
*pwaff
= NULL
;
2624 if (!isl_set_is_params(dom
) && isl_stream_eat(s
, ISL_TOKEN_TO
))
2627 if (isl_stream_eat(s
, '['))
2630 pwaff
= accept_affine(s
, isl_set_get_space(dom
), v
);
2632 if (isl_stream_eat(s
, ']'))
2635 dom
= read_optional_disjuncts(s
, dom
, v
, 0);
2636 pwaff
= isl_pw_aff_intersect_domain(pwaff
, dom
);
2641 isl_pw_aff_free(pwaff
);
2645 __isl_give isl_pw_aff
*isl_stream_read_pw_aff(struct isl_stream
*s
)
2648 isl_set
*dom
= NULL
;
2650 isl_pw_aff
*pa
= NULL
;
2653 v
= vars_new(s
->ctx
);
2657 dom
= isl_set_universe(isl_space_params_alloc(s
->ctx
, 0));
2658 if (next_is_tuple(s
)) {
2659 dom
= read_map_tuple(s
, dom
, isl_dim_param
, v
, 1, 0);
2660 if (isl_stream_eat(s
, ISL_TOKEN_TO
))
2663 if (isl_stream_eat(s
, '{'))
2667 aff_dom
= read_aff_domain(s
, isl_set_copy(dom
), v
);
2668 pa
= read_pw_aff_with_dom(s
, aff_dom
, v
);
2669 vars_drop(v
, v
->n
- n
);
2671 while (isl_stream_eat_if_available(s
, ';')) {
2675 aff_dom
= read_aff_domain(s
, isl_set_copy(dom
), v
);
2676 pa_i
= read_pw_aff_with_dom(s
, aff_dom
, v
);
2677 vars_drop(v
, v
->n
- n
);
2679 pa
= isl_pw_aff_union_add(pa
, pa_i
);
2682 if (isl_stream_eat(s
, '}'))
2691 isl_pw_aff_free(pa
);
2695 __isl_give isl_aff
*isl_aff_read_from_str(isl_ctx
*ctx
, const char *str
)
2698 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2701 aff
= isl_stream_read_aff(s
);
2706 __isl_give isl_pw_aff
*isl_pw_aff_read_from_str(isl_ctx
*ctx
, const char *str
)
2709 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2712 pa
= isl_stream_read_pw_aff(s
);
2717 /* Read an isl_pw_multi_aff from "s".
2718 * We currently read a generic object and if it turns out to be a set or
2719 * a map, we convert that to an isl_pw_multi_aff.
2720 * It would be more efficient if we were to construct the isl_pw_multi_aff
2723 __isl_give isl_pw_multi_aff
*isl_stream_read_pw_multi_aff(struct isl_stream
*s
)
2731 if (obj
.type
== isl_obj_map
)
2732 return isl_pw_multi_aff_from_map(obj
.v
);
2733 if (obj
.type
== isl_obj_set
)
2734 return isl_pw_multi_aff_from_set(obj
.v
);
2736 obj
.type
->free(obj
.v
);
2737 isl_die(s
->ctx
, isl_error_invalid
, "unexpected object type",
2741 __isl_give isl_pw_multi_aff
*isl_pw_multi_aff_read_from_str(isl_ctx
*ctx
,
2744 isl_pw_multi_aff
*pma
;
2745 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2748 pma
= isl_stream_read_pw_multi_aff(s
);
2753 /* Assuming "pa" represents a single affine expression defined on a universe
2754 * domain, extract this affine expression.
2756 static __isl_give isl_aff
*aff_from_pw_aff(__isl_take isl_pw_aff
*pa
)
2763 isl_die(isl_pw_aff_get_ctx(pa
), isl_error_invalid
,
2764 "expecting single affine expression",
2766 if (!isl_set_plain_is_universe(pa
->p
[0].set
))
2767 isl_die(isl_pw_aff_get_ctx(pa
), isl_error_invalid
,
2768 "expecting universe domain",
2771 aff
= isl_aff_copy(pa
->p
[0].aff
);
2772 isl_pw_aff_free(pa
);
2775 isl_pw_aff_free(pa
);
2779 /* Read a multi-affine expression from "s".
2780 * If the multi-affine expression has a domain, then then tuple
2781 * representing this domain cannot involve any affine expressions.
2782 * The tuple representing the actual expressions needs to consist
2783 * of only affine expressions. Moreover, these expressions can
2784 * only depend on parameters and input dimensions and not on other
2785 * output dimensions.
2787 __isl_give isl_multi_aff
*isl_stream_read_multi_aff(struct isl_stream
*s
)
2790 isl_set
*dom
= NULL
;
2791 isl_multi_pw_aff
*tuple
= NULL
;
2793 isl_space
*space
, *dom_space
;
2794 isl_multi_aff
*ma
= NULL
;
2796 v
= vars_new(s
->ctx
);
2800 dom
= isl_set_universe(isl_space_params_alloc(s
->ctx
, 0));
2801 if (next_is_tuple(s
)) {
2802 dom
= read_map_tuple(s
, dom
, isl_dim_param
, v
, 1, 0);
2803 if (isl_stream_eat(s
, ISL_TOKEN_TO
))
2806 if (!isl_set_plain_is_universe(dom
))
2807 isl_die(s
->ctx
, isl_error_invalid
,
2808 "expecting universe parameter domain", goto error
);
2809 if (isl_stream_eat(s
, '{'))
2812 tuple
= read_tuple(s
, v
, 0, 0);
2815 if (isl_stream_eat_if_available(s
, ISL_TOKEN_TO
)) {
2820 has_expr
= tuple_has_expr(tuple
);
2824 isl_die(s
->ctx
, isl_error_invalid
,
2825 "expecting universe domain", goto error
);
2826 space
= isl_space_range(isl_multi_pw_aff_get_space(tuple
));
2827 set
= isl_set_universe(space
);
2828 dom
= isl_set_intersect_params(set
, dom
);
2829 isl_multi_pw_aff_free(tuple
);
2830 tuple
= read_tuple(s
, v
, 0, 0);
2835 if (isl_stream_eat(s
, '}'))
2838 n
= isl_multi_pw_aff_dim(tuple
, isl_dim_out
);
2839 dim
= isl_set_dim(dom
, isl_dim_all
);
2840 dom_space
= isl_set_get_space(dom
);
2841 space
= isl_space_range(isl_multi_pw_aff_get_space(tuple
));
2842 space
= isl_space_align_params(space
, isl_space_copy(dom_space
));
2843 if (!isl_space_is_params(dom_space
))
2844 space
= isl_space_map_from_domain_and_range(
2845 isl_space_copy(dom_space
), space
);
2846 isl_space_free(dom_space
);
2847 ma
= isl_multi_aff_alloc(space
);
2849 for (i
= 0; i
< n
; ++i
) {
2852 pa
= isl_multi_pw_aff_get_pw_aff(tuple
, i
);
2853 aff
= aff_from_pw_aff(pa
);
2856 if (isl_aff_involves_dims(aff
, isl_dim_in
, dim
, i
+ 1)) {
2858 isl_die(s
->ctx
, isl_error_invalid
,
2859 "not an affine expression", goto error
);
2861 aff
= isl_aff_drop_dims(aff
, isl_dim_in
, dim
, n
);
2862 space
= isl_multi_aff_get_domain_space(ma
);
2863 aff
= isl_aff_reset_domain_space(aff
, space
);
2864 ma
= isl_multi_aff_set_aff(ma
, i
, aff
);
2867 isl_multi_pw_aff_free(tuple
);
2872 isl_multi_pw_aff_free(tuple
);
2875 isl_multi_aff_free(ma
);
2879 __isl_give isl_multi_aff
*isl_multi_aff_read_from_str(isl_ctx
*ctx
,
2882 isl_multi_aff
*maff
;
2883 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2886 maff
= isl_stream_read_multi_aff(s
);
2891 __isl_give isl_union_pw_qpolynomial
*isl_stream_read_union_pw_qpolynomial(
2892 struct isl_stream
*s
)
2897 if (obj
.type
== isl_obj_pw_qpolynomial
) {
2898 obj
.type
= isl_obj_union_pw_qpolynomial
;
2899 obj
.v
= isl_union_pw_qpolynomial_from_pw_qpolynomial(obj
.v
);
2902 isl_assert(s
->ctx
, obj
.type
== isl_obj_union_pw_qpolynomial
,
2907 obj
.type
->free(obj
.v
);
2911 __isl_give isl_union_pw_qpolynomial
*isl_union_pw_qpolynomial_read_from_str(
2912 isl_ctx
*ctx
, const char *str
)
2914 isl_union_pw_qpolynomial
*upwqp
;
2915 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
2918 upwqp
= isl_stream_read_union_pw_qpolynomial(s
);