2 * Copyright 2008-2009 Katholieke Universiteit Leuven
3 * Copyright 2010 INRIA Saclay
5 * Use of this software is governed by the GNU LGPLv2.1 license
7 * Written by Sven Verdoolaege, K.U.Leuven, Departement
8 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
9 * and INRIA Saclay - Ile-de-France, Parc Club Orsay Universite,
10 * ZAC des vignes, 4 rue Jacques Monod, 91893 Orsay, France
20 #include "isl_stream.h"
21 #include "isl_map_private.h"
23 #include "isl_polynomial_private.h"
28 struct variable
*next
;
37 static struct vars
*vars_new(struct isl_ctx
*ctx
)
40 v
= isl_alloc_type(ctx
, struct vars
);
49 static void variable_free(struct variable
*var
)
52 struct variable
*next
= var
->next
;
59 static void vars_free(struct vars
*v
)
67 static void vars_drop(struct vars
*v
, int n
)
78 struct variable
*next
= var
->next
;
86 static struct variable
*variable_new(struct vars
*v
, const char *name
, int len
,
90 var
= isl_alloc_type(v
->ctx
, struct variable
);
93 var
->name
= strdup(name
);
94 var
->name
[len
] = '\0';
103 static int vars_pos(struct vars
*v
, const char *s
, int len
)
110 for (q
= v
->v
; q
; q
= q
->next
) {
111 if (strncmp(q
->name
, s
, len
) == 0 && q
->name
[len
] == '\0')
118 v
->v
= variable_new(v
, s
, len
, v
->n
);
126 static __isl_give isl_basic_map
*set_name(__isl_take isl_basic_map
*bmap
,
127 enum isl_dim_type type
, unsigned pos
, char *name
)
136 prime
= strchr(name
, '\'');
139 bmap
->dim
= isl_dim_set_name(bmap
->dim
, type
, pos
, name
);
148 isl_basic_map_free(bmap
);
152 static struct isl_vec
*accept_affine(struct isl_stream
*s
, struct vars
*v
)
154 struct isl_token
*tok
= NULL
;
158 aff
= isl_vec_alloc(v
->ctx
, 1 + v
->n
);
159 isl_seq_clr(aff
->el
, aff
->size
);
164 tok
= isl_stream_next_token(s
);
166 isl_stream_error(s
, NULL
, "unexpected EOF");
169 if (tok
->type
== ISL_TOKEN_IDENT
) {
171 int pos
= vars_pos(v
, tok
->u
.s
, -1);
175 isl_stream_error(s
, tok
, "unknown identifier");
180 isl_int_add_ui(aff
->el
[1 + pos
],
181 aff
->el
[1 + pos
], 1);
183 isl_int_sub_ui(aff
->el
[1 + pos
],
184 aff
->el
[1 + pos
], 1);
186 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
187 struct isl_token
*tok2
;
190 tok2
= isl_stream_next_token(s
);
191 if (tok2
&& tok2
->type
== ISL_TOKEN_IDENT
) {
192 pos
= vars_pos(v
, tok2
->u
.s
, -1);
196 isl_stream_error(s
, tok2
,
197 "unknown identifier");
199 isl_token_free(tok2
);
202 isl_token_free(tok2
);
204 isl_stream_push_token(s
, tok2
);
206 isl_int_neg(tok
->u
.v
, tok
->u
.v
);
207 isl_int_add(aff
->el
[1 + pos
],
208 aff
->el
[1 + pos
], tok
->u
.v
);
210 } else if (tok
->type
== '-') {
212 } else if (tok
->type
== '+') {
215 isl_stream_push_token(s
, tok
);
227 static __isl_give isl_basic_map
*read_var_list(struct isl_stream
*s
,
228 __isl_take isl_basic_map
*bmap
, enum isl_dim_type type
, struct vars
*v
)
231 struct isl_token
*tok
;
233 while ((tok
= isl_stream_next_token(s
)) != NULL
) {
236 if (tok
->type
== ISL_TOKEN_IDENT
) {
238 int p
= vars_pos(v
, tok
->u
.s
, -1);
245 bmap
= isl_basic_map_add(bmap
, type
, 1);
246 bmap
= set_name(bmap
, type
, i
, v
->v
->name
);
248 } else if (tok
->type
== ISL_TOKEN_IDENT
||
249 tok
->type
== ISL_TOKEN_VALUE
) {
252 if (type
== isl_dim_param
) {
253 isl_stream_error(s
, tok
,
254 "expecting unique identifier");
257 isl_stream_push_token(s
, tok
);
259 vec
= accept_affine(s
, v
);
262 v
->v
= variable_new(v
, "", 0, v
->n
);
266 bmap
= isl_basic_map_add(bmap
, type
, 1);
267 bmap
= isl_basic_map_extend_constraints(bmap
, 1, 0);
268 k
= isl_basic_map_alloc_equality(bmap
);
270 isl_seq_cpy(bmap
->eq
[k
], vec
->el
, vec
->size
);
271 isl_int_set_si(bmap
->eq
[k
][vec
->size
], -1);
279 tok
= isl_stream_next_token(s
);
280 if (!tok
|| tok
->type
!= ',')
287 isl_stream_push_token(s
, tok
);
292 isl_basic_map_free(bmap
);
296 static __isl_give isl_mat
*accept_affine_list(struct isl_stream
*s
,
301 struct isl_token
*tok
= NULL
;
303 vec
= accept_affine(s
, v
);
304 mat
= isl_mat_from_row_vec(vec
);
309 tok
= isl_stream_next_token(s
);
311 isl_stream_error(s
, NULL
, "unexpected EOF");
314 if (tok
->type
!= ',') {
315 isl_stream_push_token(s
, tok
);
320 vec
= accept_affine(s
, v
);
321 mat
= isl_mat_vec_concat(mat
, vec
);
332 static struct isl_basic_map
*add_div_definition(struct isl_stream
*s
,
333 struct vars
*v
, struct isl_basic_map
*bmap
, int k
)
335 struct isl_token
*tok
;
339 if (isl_stream_eat(s
, '['))
342 tok
= isl_stream_next_token(s
);
345 if (tok
->type
== '(') {
349 isl_stream_push_token(s
, tok
);
351 aff
= accept_affine(s
, v
);
355 isl_seq_cpy(bmap
->div
[k
] + 1, aff
->el
, aff
->size
);
359 if (seen_paren
&& isl_stream_eat(s
, ')'))
361 if (isl_stream_eat(s
, '/'))
364 tok
= isl_stream_next_token(s
);
367 if (tok
->type
!= ISL_TOKEN_VALUE
) {
368 isl_stream_error(s
, tok
, "expected denominator");
369 isl_stream_push_token(s
, tok
);
372 isl_int_set(bmap
->div
[k
][0], tok
->u
.v
);
375 if (isl_stream_eat(s
, ']'))
378 if (isl_basic_map_add_div_constraints(bmap
, k
) < 0)
383 isl_basic_map_free(bmap
);
387 static struct isl_basic_map
*read_defined_var_list(struct isl_stream
*s
,
388 struct vars
*v
, struct isl_basic_map
*bmap
)
390 struct isl_token
*tok
;
392 while ((tok
= isl_stream_next_token(s
)) != NULL
) {
396 unsigned total
= isl_basic_map_total_dim(bmap
);
398 if (tok
->type
!= ISL_TOKEN_IDENT
)
401 p
= vars_pos(v
, tok
->u
.s
, -1);
405 isl_stream_error(s
, tok
, "expecting unique identifier");
410 bmap
= isl_basic_map_cow(bmap
);
411 bmap
= isl_basic_map_extend_dim(bmap
, isl_dim_copy(bmap
->dim
),
414 if ((k
= isl_basic_map_alloc_div(bmap
)) < 0)
416 isl_seq_clr(bmap
->div
[k
], 1 + 1 + total
);
418 tok
= isl_stream_next_token(s
);
419 if (tok
&& tok
->type
== '=') {
421 bmap
= add_div_definition(s
, v
, bmap
, k
);
422 tok
= isl_stream_next_token(s
);
425 if (!tok
|| tok
->type
!= ',')
431 isl_stream_push_token(s
, tok
);
436 isl_basic_map_free(bmap
);
440 static __isl_give isl_basic_map
*read_tuple(struct isl_stream
*s
,
441 __isl_take isl_basic_map
*bmap
, enum isl_dim_type type
, struct vars
*v
)
443 struct isl_token
*tok
;
445 tok
= isl_stream_next_token(s
);
446 if (!tok
|| tok
->type
!= '[') {
447 isl_stream_error(s
, tok
, "expecting '['");
451 bmap
= read_var_list(s
, bmap
, type
, v
);
452 tok
= isl_stream_next_token(s
);
453 if (!tok
|| tok
->type
!= ']') {
454 isl_stream_error(s
, tok
, "expecting ']'");
463 isl_basic_map_free(bmap
);
467 static struct isl_basic_map
*add_constraints(struct isl_stream
*s
,
468 struct vars
*v
, struct isl_basic_map
*bmap
);
470 static struct isl_basic_map
*add_exists(struct isl_stream
*s
,
471 struct vars
*v
, struct isl_basic_map
*bmap
)
473 struct isl_token
*tok
;
480 tok
= isl_stream_next_token(s
);
483 if (tok
->type
== '(') {
487 isl_stream_push_token(s
, tok
);
489 bmap
= read_defined_var_list(s
, v
, bmap
);
493 if (isl_stream_eat(s
, ':'))
495 bmap
= add_constraints(s
, v
, bmap
);
496 if (seen_paren
&& isl_stream_eat(s
, ')'))
500 isl_basic_map_free(bmap
);
504 static __isl_give isl_basic_map
*construct_constraint(
505 __isl_take isl_basic_map
*bmap
, enum isl_token_type type
,
506 isl_int
*left
, isl_int
*right
)
514 len
= 1 + isl_basic_map_total_dim(bmap
);
517 k
= isl_basic_map_alloc_inequality(bmap
);
520 if (type
== ISL_TOKEN_LE
)
521 isl_seq_combine(bmap
->ineq
[k
], ctx
->negone
, left
,
524 else if (type
== ISL_TOKEN_GE
)
525 isl_seq_combine(bmap
->ineq
[k
], ctx
->one
, left
,
528 else if (type
== ISL_TOKEN_LT
) {
529 isl_seq_combine(bmap
->ineq
[k
], ctx
->negone
, left
,
532 isl_int_sub_ui(bmap
->ineq
[k
][0], bmap
->ineq
[k
][0], 1);
533 } else if (type
== ISL_TOKEN_GT
) {
534 isl_seq_combine(bmap
->ineq
[k
], ctx
->one
, left
,
537 isl_int_sub_ui(bmap
->ineq
[k
][0], bmap
->ineq
[k
][0], 1);
539 isl_seq_combine(bmap
->ineq
[k
], ctx
->one
, left
,
542 isl_basic_map_inequality_to_equality(bmap
, k
);
547 isl_basic_map_free(bmap
);
551 static int is_comparator(struct isl_token
*tok
)
568 static struct isl_basic_map
*add_constraint(struct isl_stream
*s
,
569 struct vars
*v
, struct isl_basic_map
*bmap
)
572 unsigned total
= isl_basic_map_total_dim(bmap
);
573 struct isl_token
*tok
= NULL
;
574 struct isl_mat
*aff1
= NULL
, *aff2
= NULL
;
576 tok
= isl_stream_next_token(s
);
579 if (tok
->type
== ISL_TOKEN_EXISTS
) {
581 return add_exists(s
, v
, bmap
);
583 isl_stream_push_token(s
, tok
);
586 bmap
= isl_basic_map_cow(bmap
);
588 aff1
= accept_affine_list(s
, v
);
591 tok
= isl_stream_next_token(s
);
592 if (!is_comparator(tok
)) {
593 isl_stream_error(s
, tok
, "missing operator");
595 isl_stream_push_token(s
, tok
);
599 isl_assert(aff1
->ctx
, aff1
->n_col
== 1 + total
, goto error
);
601 aff2
= accept_affine_list(s
, v
);
604 isl_assert(aff2
->ctx
, aff2
->n_col
== 1 + total
, goto error
);
606 bmap
= isl_basic_map_extend_constraints(bmap
, 0,
607 aff1
->n_row
* aff2
->n_row
);
608 for (i
= 0; i
< aff1
->n_row
; ++i
)
609 for (j
= 0; j
< aff2
->n_row
; ++j
)
610 bmap
= construct_constraint(bmap
, tok
->type
,
611 aff1
->row
[i
], aff2
->row
[j
]);
616 tok
= isl_stream_next_token(s
);
617 if (!is_comparator(tok
)) {
619 isl_stream_push_token(s
, tok
);
631 isl_basic_map_free(bmap
);
635 static struct isl_basic_map
*add_constraints(struct isl_stream
*s
,
636 struct vars
*v
, struct isl_basic_map
*bmap
)
638 struct isl_token
*tok
;
641 bmap
= add_constraint(s
, v
, bmap
);
644 tok
= isl_stream_next_token(s
);
646 isl_stream_error(s
, NULL
, "unexpected EOF");
649 if (tok
->type
!= ISL_TOKEN_AND
)
653 isl_stream_push_token(s
, tok
);
659 isl_basic_map_free(bmap
);
663 static struct isl_basic_map
*read_disjunct(struct isl_stream
*s
,
664 struct vars
*v
, __isl_take isl_dim
*dim
)
667 struct isl_token
*tok
;
668 struct isl_basic_map
*bmap
;
670 bmap
= isl_basic_map_alloc_dim(dim
, 0, 0, 0);
674 tok
= isl_stream_next_token(s
);
677 if (tok
->type
== '(') {
681 isl_stream_push_token(s
, tok
);
683 bmap
= add_constraints(s
, v
, bmap
);
684 bmap
= isl_basic_map_simplify(bmap
);
685 bmap
= isl_basic_map_finalize(bmap
);
687 if (seen_paren
&& isl_stream_eat(s
, ')'))
692 isl_basic_map_free(bmap
);
696 static struct isl_map
*read_disjuncts(struct isl_stream
*s
,
697 struct vars
*v
, __isl_take isl_dim
*dim
)
699 struct isl_token
*tok
;
702 tok
= isl_stream_next_token(s
);
704 isl_stream_error(s
, NULL
, "unexpected EOF");
707 if (tok
->type
== '}') {
708 isl_stream_push_token(s
, tok
);
709 return isl_map_universe(dim
);
711 isl_stream_push_token(s
, tok
);
713 map
= isl_map_empty(isl_dim_copy(dim
));
715 struct isl_basic_map
*bmap
;
718 bmap
= read_disjunct(s
, v
, isl_dim_copy(dim
));
719 map
= isl_map_union(map
, isl_map_from_basic_map(bmap
));
721 vars_drop(v
, v
->n
- n
);
723 tok
= isl_stream_next_token(s
);
724 if (!tok
|| tok
->type
!= ISL_TOKEN_OR
)
729 isl_stream_push_token(s
, tok
);
738 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map
*bmap
, int pos
)
740 if (pos
< isl_basic_map_dim(bmap
, isl_dim_out
))
741 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
742 isl_basic_map_dim(bmap
, isl_dim_in
) + pos
;
743 pos
-= isl_basic_map_dim(bmap
, isl_dim_out
);
745 if (pos
< isl_basic_map_dim(bmap
, isl_dim_in
))
746 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) + pos
;
747 pos
-= isl_basic_map_dim(bmap
, isl_dim_in
);
749 if (pos
< isl_basic_map_dim(bmap
, isl_dim_div
))
750 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
751 isl_basic_map_dim(bmap
, isl_dim_in
) +
752 isl_basic_map_dim(bmap
, isl_dim_out
) + pos
;
753 pos
-= isl_basic_map_dim(bmap
, isl_dim_div
);
755 if (pos
< isl_basic_map_dim(bmap
, isl_dim_param
))
761 static __isl_give isl_basic_map
*basic_map_read_polylib_constraint(
762 struct isl_stream
*s
, __isl_take isl_basic_map
*bmap
)
765 struct isl_token
*tok
;
775 nparam
= isl_basic_map_dim(bmap
, isl_dim_param
);
776 dim
= isl_basic_map_dim(bmap
, isl_dim_out
);
778 tok
= isl_stream_next_token(s
);
779 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
780 isl_stream_error(s
, tok
, "expecting coefficient");
782 isl_stream_push_token(s
, tok
);
785 if (!tok
->on_new_line
) {
786 isl_stream_error(s
, tok
, "coefficient should appear on new line");
787 isl_stream_push_token(s
, tok
);
791 type
= isl_int_get_si(tok
->u
.v
);
794 isl_assert(s
->ctx
, type
== 0 || type
== 1, goto error
);
796 k
= isl_basic_map_alloc_equality(bmap
);
799 k
= isl_basic_map_alloc_inequality(bmap
);
805 for (j
= 0; j
< 1 + isl_basic_map_total_dim(bmap
); ++j
) {
807 tok
= isl_stream_next_token(s
);
808 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
809 isl_stream_error(s
, tok
, "expecting coefficient");
811 isl_stream_push_token(s
, tok
);
814 if (tok
->on_new_line
) {
815 isl_stream_error(s
, tok
,
816 "coefficient should not appear on new line");
817 isl_stream_push_token(s
, tok
);
820 pos
= polylib_pos_to_isl_pos(bmap
, j
);
821 isl_int_set(c
[pos
], tok
->u
.v
);
827 isl_basic_map_free(bmap
);
831 static __isl_give isl_basic_map
*basic_map_read_polylib(struct isl_stream
*s
,
835 struct isl_token
*tok
;
836 struct isl_token
*tok2
;
839 unsigned in
= 0, out
, local
= 0;
840 struct isl_basic_map
*bmap
= NULL
;
845 tok
= isl_stream_next_token(s
);
847 isl_stream_error(s
, NULL
, "unexpected EOF");
850 tok2
= isl_stream_next_token(s
);
853 isl_stream_error(s
, NULL
, "unexpected EOF");
856 n_row
= isl_int_get_si(tok
->u
.v
);
857 n_col
= isl_int_get_si(tok2
->u
.v
);
858 on_new_line
= tok2
->on_new_line
;
859 isl_token_free(tok2
);
861 isl_assert(s
->ctx
, !on_new_line
, return NULL
);
862 isl_assert(s
->ctx
, n_row
>= 0, return NULL
);
863 isl_assert(s
->ctx
, n_col
>= 2 + nparam
, return NULL
);
864 tok
= isl_stream_next_token_on_same_line(s
);
866 if (tok
->type
!= ISL_TOKEN_VALUE
) {
867 isl_stream_error(s
, tok
,
868 "expecting number of output dimensions");
869 isl_stream_push_token(s
, tok
);
872 out
= isl_int_get_si(tok
->u
.v
);
875 tok
= isl_stream_next_token_on_same_line(s
);
876 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
877 isl_stream_error(s
, tok
,
878 "expecting number of input dimensions");
880 isl_stream_push_token(s
, tok
);
883 in
= isl_int_get_si(tok
->u
.v
);
886 tok
= isl_stream_next_token_on_same_line(s
);
887 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
888 isl_stream_error(s
, tok
,
889 "expecting number of existentials");
891 isl_stream_push_token(s
, tok
);
894 local
= isl_int_get_si(tok
->u
.v
);
897 tok
= isl_stream_next_token_on_same_line(s
);
898 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
899 isl_stream_error(s
, tok
,
900 "expecting number of parameters");
902 isl_stream_push_token(s
, tok
);
905 nparam
= isl_int_get_si(tok
->u
.v
);
907 if (n_col
!= 1 + out
+ in
+ local
+ nparam
+ 1) {
908 isl_stream_error(s
, NULL
,
909 "dimensions don't match");
913 out
= n_col
- 2 - nparam
;
914 bmap
= isl_basic_map_alloc(s
->ctx
, nparam
, in
, out
, local
, n_row
, n_row
);
918 for (i
= 0; i
< local
; ++i
) {
919 int k
= isl_basic_map_alloc_div(bmap
);
924 for (i
= 0; i
< n_row
; ++i
)
925 bmap
= basic_map_read_polylib_constraint(s
, bmap
);
927 tok
= isl_stream_next_token_on_same_line(s
);
929 isl_stream_error(s
, tok
, "unexpected extra token on line");
930 isl_stream_push_token(s
, tok
);
934 bmap
= isl_basic_map_simplify(bmap
);
935 bmap
= isl_basic_map_finalize(bmap
);
938 isl_basic_map_free(bmap
);
942 static struct isl_map
*map_read_polylib(struct isl_stream
*s
, int nparam
)
944 struct isl_token
*tok
;
945 struct isl_token
*tok2
;
949 tok
= isl_stream_next_token(s
);
951 isl_stream_error(s
, NULL
, "unexpected EOF");
954 tok2
= isl_stream_next_token_on_same_line(s
);
956 isl_stream_push_token(s
, tok2
);
957 isl_stream_push_token(s
, tok
);
958 return isl_map_from_basic_map(basic_map_read_polylib(s
, nparam
));
960 n
= isl_int_get_si(tok
->u
.v
);
963 isl_assert(s
->ctx
, n
>= 1, return NULL
);
965 map
= isl_map_from_basic_map(basic_map_read_polylib(s
, nparam
));
967 for (i
= 1; i
< n
; ++i
)
968 map
= isl_map_union(map
,
969 isl_map_from_basic_map(basic_map_read_polylib(s
, nparam
)));
974 static int optional_power(struct isl_stream
*s
)
977 struct isl_token
*tok
;
979 tok
= isl_stream_next_token(s
);
982 if (tok
->type
!= '^') {
983 isl_stream_push_token(s
, tok
);
987 tok
= isl_stream_next_token(s
);
988 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
989 isl_stream_error(s
, tok
, "expecting exponent");
991 isl_stream_push_token(s
, tok
);
994 pow
= isl_int_get_si(tok
->u
.v
);
999 static __isl_give isl_div
*read_div(struct isl_stream
*s
,
1000 __isl_keep isl_basic_map
*bmap
, struct vars
*v
)
1002 unsigned total
= isl_basic_map_total_dim(bmap
);
1005 bmap
= isl_basic_map_copy(bmap
);
1006 bmap
= isl_basic_map_cow(bmap
);
1007 bmap
= isl_basic_map_extend_dim(bmap
, isl_dim_copy(bmap
->dim
),
1010 if ((k
= isl_basic_map_alloc_div(bmap
)) < 0)
1012 isl_seq_clr(bmap
->div
[k
], 1 + 1 + total
);
1013 bmap
= add_div_definition(s
, v
, bmap
, k
);
1015 return isl_basic_map_div(bmap
, k
);
1017 isl_basic_map_free(bmap
);
1021 static __isl_give isl_qpolynomial
*read_term(struct isl_stream
*s
,
1022 __isl_keep isl_basic_map
*bmap
, struct vars
*v
);
1024 static __isl_give isl_qpolynomial
*read_factor(struct isl_stream
*s
,
1025 __isl_keep isl_basic_map
*bmap
, struct vars
*v
)
1027 struct isl_qpolynomial
*qp
;
1028 struct isl_token
*tok
;
1030 tok
= isl_stream_next_token(s
);
1032 isl_stream_error(s
, NULL
, "unexpected EOF");
1035 if (tok
->type
== '(') {
1036 isl_token_free(tok
);
1037 qp
= read_term(s
, bmap
, v
);
1040 if (isl_stream_eat(s
, ')'))
1042 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
1043 struct isl_token
*tok2
;
1044 tok2
= isl_stream_next_token(s
);
1045 if (tok2
&& tok2
->type
== '/') {
1046 isl_token_free(tok2
);
1047 tok2
= isl_stream_next_token(s
);
1048 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
1049 isl_stream_error(s
, tok2
, "expected denominator");
1050 isl_token_free(tok
);
1051 isl_token_free(tok2
);
1054 qp
= isl_qpolynomial_rat_cst(isl_basic_map_get_dim(bmap
),
1055 tok
->u
.v
, tok2
->u
.v
);
1056 isl_token_free(tok2
);
1058 isl_stream_push_token(s
, tok2
);
1059 qp
= isl_qpolynomial_cst(isl_basic_map_get_dim(bmap
),
1062 isl_token_free(tok
);
1063 } else if (tok
->type
== ISL_TOKEN_INFTY
) {
1064 isl_token_free(tok
);
1065 qp
= isl_qpolynomial_infty(isl_basic_map_get_dim(bmap
));
1066 } else if (tok
->type
== ISL_TOKEN_NAN
) {
1067 isl_token_free(tok
);
1068 qp
= isl_qpolynomial_nan(isl_basic_map_get_dim(bmap
));
1069 } else if (tok
->type
== ISL_TOKEN_IDENT
) {
1071 int pos
= vars_pos(v
, tok
->u
.s
, -1);
1073 isl_token_free(tok
);
1077 isl_stream_error(s
, tok
, "unknown identifier");
1080 pow
= optional_power(s
);
1081 qp
= isl_qpolynomial_pow(isl_basic_map_get_dim(bmap
), pos
, pow
);
1082 } else if (tok
->type
== '[') {
1086 isl_stream_push_token(s
, tok
);
1087 div
= read_div(s
, bmap
, v
);
1088 pow
= optional_power(s
);
1089 qp
= isl_qpolynomial_div_pow(div
, pow
);
1090 } else if (tok
->type
== '-') {
1091 struct isl_qpolynomial
*qp2
;
1093 isl_token_free(tok
);
1094 qp
= isl_qpolynomial_cst(isl_basic_map_get_dim(bmap
),
1096 qp2
= read_factor(s
, bmap
, v
);
1097 qp
= isl_qpolynomial_mul(qp
, qp2
);
1099 isl_stream_error(s
, tok
, "unexpected isl_token");
1100 isl_stream_push_token(s
, tok
);
1104 if (isl_stream_eat_if_available(s
, '*') ||
1105 isl_stream_next_token_is(s
, ISL_TOKEN_IDENT
)) {
1106 struct isl_qpolynomial
*qp2
;
1108 qp2
= read_factor(s
, bmap
, v
);
1109 qp
= isl_qpolynomial_mul(qp
, qp2
);
1114 isl_qpolynomial_free(qp
);
1118 static __isl_give isl_qpolynomial
*read_term(struct isl_stream
*s
,
1119 __isl_keep isl_basic_map
*bmap
, struct vars
*v
)
1121 struct isl_token
*tok
;
1122 struct isl_qpolynomial
*qp
;
1124 qp
= read_factor(s
, bmap
, v
);
1127 tok
= isl_stream_next_token(s
);
1131 if (tok
->type
== '+') {
1132 struct isl_qpolynomial
*qp2
;
1134 isl_token_free(tok
);
1135 qp2
= read_factor(s
, bmap
, v
);
1136 qp
= isl_qpolynomial_add(qp
, qp2
);
1137 } else if (tok
->type
== '-') {
1138 struct isl_qpolynomial
*qp2
;
1140 isl_token_free(tok
);
1141 qp2
= read_factor(s
, bmap
, v
);
1142 qp
= isl_qpolynomial_sub(qp
, qp2
);
1143 } else if (tok
->type
== ISL_TOKEN_VALUE
&&
1144 isl_int_is_neg(tok
->u
.v
)) {
1145 struct isl_qpolynomial
*qp2
;
1147 qp2
= isl_qpolynomial_cst(isl_basic_map_get_dim(bmap
),
1149 isl_token_free(tok
);
1150 qp
= isl_qpolynomial_add(qp
, qp2
);
1152 isl_stream_push_token(s
, tok
);
1160 static __isl_give isl_map
*read_optional_disjuncts(struct isl_stream
*s
,
1161 __isl_take isl_basic_map
*bmap
, struct vars
*v
)
1163 struct isl_token
*tok
;
1164 struct isl_map
*map
;
1166 tok
= isl_stream_next_token(s
);
1168 isl_stream_error(s
, NULL
, "unexpected EOF");
1171 map
= isl_map_from_basic_map(isl_basic_map_copy(bmap
));
1172 if (tok
->type
== ':') {
1173 isl_token_free(tok
);
1174 map
= isl_map_intersect(map
,
1175 read_disjuncts(s
, v
, isl_basic_map_get_dim(bmap
)));
1177 isl_stream_push_token(s
, tok
);
1179 isl_basic_map_free(bmap
);
1183 isl_basic_map_free(bmap
);
1187 static struct isl_obj
obj_read_poly(struct isl_stream
*s
,
1188 __isl_take isl_basic_map
*bmap
, struct vars
*v
, int n
)
1190 struct isl_obj obj
= { isl_obj_pw_qpolynomial
, NULL
};
1191 struct isl_pw_qpolynomial
*pwqp
;
1192 struct isl_qpolynomial
*qp
;
1193 struct isl_map
*map
;
1194 struct isl_set
*set
;
1196 bmap
= isl_basic_map_reverse(bmap
);
1198 qp
= read_term(s
, bmap
, v
);
1199 map
= read_optional_disjuncts(s
, bmap
, v
);
1200 set
= isl_set_from_map(map
);
1202 pwqp
= isl_pw_qpolynomial_alloc(set
, qp
);
1204 vars_drop(v
, v
->n
- n
);
1210 static struct isl_obj
obj_read_body(struct isl_stream
*s
,
1211 __isl_take isl_basic_map
*bmap
, struct vars
*v
, isl_obj_type type
)
1213 struct isl_map
*map
= NULL
;
1214 struct isl_token
*tok
;
1215 struct isl_obj obj
= { type
, NULL
};
1218 if (!isl_stream_next_token_is(s
, '['))
1219 return obj_read_poly(s
, bmap
, v
, n
);
1221 bmap
= read_tuple(s
, bmap
, isl_dim_in
, v
);
1224 tok
= isl_stream_next_token(s
);
1225 if (tok
&& tok
->type
== ISL_TOKEN_TO
) {
1226 obj
.type
= isl_obj_map
;
1227 isl_token_free(tok
);
1228 tok
= isl_stream_next_token(s
);
1229 if (tok
&& tok
->type
!= '[') {
1230 isl_stream_push_token(s
, tok
);
1231 return obj_read_poly(s
, bmap
, v
, n
);
1233 isl_stream_push_token(s
, tok
);
1234 bmap
= read_tuple(s
, bmap
, isl_dim_out
, v
);
1238 bmap
= isl_basic_map_reverse(bmap
);
1240 isl_stream_push_token(s
, tok
);
1243 map
= read_optional_disjuncts(s
, bmap
, v
);
1245 vars_drop(v
, v
->n
- n
);
1250 isl_basic_map_free(bmap
);
1251 obj
.type
= isl_obj_none
;
1255 static struct isl_obj
obj_add(struct isl_ctx
*ctx
,
1256 struct isl_obj obj1
, struct isl_obj obj2
)
1258 isl_assert(ctx
, obj1
.type
== obj2
.type
, goto error
);
1259 obj1
.v
= obj1
.type
->add(obj1
.v
, obj2
.v
);
1262 obj1
.type
->free(obj1
.v
);
1263 obj2
.type
->free(obj2
.v
);
1264 obj1
.type
= isl_obj_none
;
1269 static struct isl_obj
obj_read(struct isl_stream
*s
, int nparam
)
1271 struct isl_basic_map
*bmap
= NULL
;
1272 struct isl_token
*tok
;
1273 struct vars
*v
= NULL
;
1274 struct isl_obj obj
= { isl_obj_set
, NULL
};
1276 tok
= isl_stream_next_token(s
);
1278 isl_stream_error(s
, NULL
, "unexpected EOF");
1281 if (tok
->type
== ISL_TOKEN_VALUE
) {
1282 struct isl_map
*map
;
1283 isl_stream_push_token(s
, tok
);
1284 map
= map_read_polylib(s
, nparam
);
1287 if (isl_map_dim(map
, isl_dim_in
) > 0)
1288 obj
.type
= isl_obj_map
;
1292 v
= vars_new(s
->ctx
);
1293 bmap
= isl_basic_map_alloc(s
->ctx
, 0, 0, 0, 0, 0, 0);
1294 if (tok
->type
== '[') {
1295 isl_stream_push_token(s
, tok
);
1296 bmap
= read_tuple(s
, bmap
, isl_dim_param
, v
);
1300 isl_assert(s
->ctx
, nparam
== v
->n
, goto error
);
1301 tok
= isl_stream_next_token(s
);
1302 if (!tok
|| tok
->type
!= ISL_TOKEN_TO
) {
1303 isl_stream_error(s
, tok
, "expecting '->'");
1305 isl_stream_push_token(s
, tok
);
1308 isl_token_free(tok
);
1309 tok
= isl_stream_next_token(s
);
1311 bmap
= isl_basic_map_add(bmap
, isl_dim_param
, nparam
);
1312 if (!tok
|| tok
->type
!= '{') {
1313 isl_stream_error(s
, tok
, "expecting '{'");
1315 isl_stream_push_token(s
, tok
);
1318 isl_token_free(tok
);
1323 o
= obj_read_body(s
, isl_basic_map_copy(bmap
), v
, obj
.type
);
1324 if (o
.type
== isl_obj_none
)
1329 obj
= obj_add(s
->ctx
, obj
, o
);
1330 if (obj
.type
== isl_obj_none
)
1333 tok
= isl_stream_next_token(s
);
1334 if (!tok
|| tok
->type
!= ';')
1336 isl_token_free(tok
);
1339 if (tok
&& tok
->type
== '}') {
1340 isl_token_free(tok
);
1342 isl_stream_error(s
, tok
, "unexpected isl_token");
1344 isl_token_free(tok
);
1348 isl_basic_map_free(bmap
);
1352 isl_basic_map_free(bmap
);
1353 obj
.type
->free(obj
.v
);
1360 struct isl_obj
isl_stream_read_obj(struct isl_stream
*s
)
1362 return obj_read(s
, -1);
1365 static struct isl_basic_map
*basic_map_read(struct isl_stream
*s
, int nparam
)
1368 struct isl_map
*map
;
1369 struct isl_basic_map
*bmap
;
1371 obj
= obj_read(s
, nparam
);
1376 isl_assert(map
->ctx
, map
->n
<= 1, goto error
);
1379 bmap
= isl_basic_map_empty_like_map(map
);
1381 bmap
= isl_basic_map_copy(map
->p
[0]);
1391 __isl_give isl_basic_map
*isl_basic_map_read_from_file(isl_ctx
*ctx
,
1392 FILE *input
, int nparam
)
1394 struct isl_basic_map
*bmap
;
1395 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
1398 bmap
= basic_map_read(s
, nparam
);
1403 __isl_give isl_basic_set
*isl_basic_set_read_from_file(isl_ctx
*ctx
,
1404 FILE *input
, int nparam
)
1406 struct isl_basic_map
*bmap
;
1407 bmap
= isl_basic_map_read_from_file(ctx
, input
, nparam
);
1410 isl_assert(ctx
, isl_basic_map_n_in(bmap
) == 0, goto error
);
1411 return (struct isl_basic_set
*)bmap
;
1413 isl_basic_map_free(bmap
);
1417 struct isl_basic_map
*isl_basic_map_read_from_str(struct isl_ctx
*ctx
,
1418 const char *str
, int nparam
)
1420 struct isl_basic_map
*bmap
;
1421 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
1424 bmap
= basic_map_read(s
, nparam
);
1429 struct isl_basic_set
*isl_basic_set_read_from_str(struct isl_ctx
*ctx
,
1430 const char *str
, int nparam
)
1432 struct isl_basic_map
*bmap
;
1433 bmap
= isl_basic_map_read_from_str(ctx
, str
, nparam
);
1436 isl_assert(ctx
, isl_basic_map_n_in(bmap
) == 0, goto error
);
1437 return (struct isl_basic_set
*)bmap
;
1439 isl_basic_map_free(bmap
);
1443 __isl_give isl_map
*isl_map_read_from_file(struct isl_ctx
*ctx
,
1444 FILE *input
, int nparam
)
1447 struct isl_map
*map
;
1448 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
1451 obj
= obj_read(s
, nparam
);
1456 __isl_give isl_map
*isl_map_read_from_str(struct isl_ctx
*ctx
,
1457 const char *str
, int nparam
)
1460 struct isl_map
*map
;
1461 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
1464 obj
= obj_read(s
, nparam
);
1469 __isl_give isl_set
*isl_set_read_from_file(struct isl_ctx
*ctx
,
1470 FILE *input
, int nparam
)
1472 struct isl_map
*map
;
1473 map
= isl_map_read_from_file(ctx
, input
, nparam
);
1476 isl_assert(ctx
, isl_map_n_in(map
) == 0, goto error
);
1477 return (struct isl_set
*)map
;
1483 struct isl_set
*isl_set_read_from_str(struct isl_ctx
*ctx
,
1484 const char *str
, int nparam
)
1486 struct isl_map
*map
;
1487 map
= isl_map_read_from_str(ctx
, str
, nparam
);
1490 isl_assert(ctx
, isl_map_n_in(map
) == 0, goto error
);
1491 return (struct isl_set
*)map
;
1497 static char *next_line(FILE *input
, char *line
, unsigned len
)
1502 if (!(p
= fgets(line
, len
, input
)))
1504 while (isspace(*p
) && *p
!= '\n')
1506 } while (*p
== '#' || *p
== '\n');
1511 static struct isl_vec
*isl_vec_read_from_file_polylib(struct isl_ctx
*ctx
,
1514 struct isl_vec
*vec
= NULL
;
1523 isl_assert(ctx
, next_line(input
, line
, sizeof(line
)), return NULL
);
1524 isl_assert(ctx
, sscanf(line
, "%u", &size
) == 1, return NULL
);
1526 vec
= isl_vec_alloc(ctx
, size
);
1528 p
= next_line(input
, line
, sizeof(line
));
1529 isl_assert(ctx
, p
, goto error
);
1531 for (j
= 0; j
< size
; ++j
) {
1532 n
= sscanf(p
, "%s%n", val
, &offset
);
1533 isl_assert(ctx
, n
!= 0, goto error
);
1534 isl_int_read(vec
->el
[j
], val
);
1544 struct isl_vec
*isl_vec_read_from_file(struct isl_ctx
*ctx
,
1545 FILE *input
, unsigned input_format
)
1547 if (input_format
== ISL_FORMAT_POLYLIB
)
1548 return isl_vec_read_from_file_polylib(ctx
, input
);
1550 isl_assert(ctx
, 0, return NULL
);