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 int accept_cst_factor(struct isl_stream
*s
, isl_int
*f
)
154 struct isl_token
*tok
;
156 tok
= isl_stream_next_token(s
);
157 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
158 isl_stream_error(s
, tok
, "expecting constant value");
162 isl_int_mul(*f
, *f
, tok
->u
.v
);
166 if (isl_stream_eat_if_available(s
, '*'))
167 return accept_cst_factor(s
, f
);
175 static struct isl_vec
*accept_affine(struct isl_stream
*s
, struct vars
*v
);
177 static __isl_give isl_vec
*accept_affine_factor(struct isl_stream
*s
,
180 struct isl_token
*tok
= NULL
;
183 tok
= isl_stream_next_token(s
);
185 isl_stream_error(s
, NULL
, "unexpected EOF");
188 if (tok
->type
== ISL_TOKEN_IDENT
) {
190 int pos
= vars_pos(v
, tok
->u
.s
, -1);
194 isl_stream_error(s
, tok
, "unknown identifier");
198 aff
= isl_vec_alloc(v
->ctx
, 1 + v
->n
);
201 isl_seq_clr(aff
->el
, aff
->size
);
202 isl_int_set_si(aff
->el
[1 + pos
], 1);
204 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
205 if (isl_stream_eat_if_available(s
, '*')) {
206 aff
= accept_affine_factor(s
, v
);
207 aff
= isl_vec_scale(aff
, tok
->u
.v
);
209 aff
= isl_vec_alloc(v
->ctx
, 1 + v
->n
);
212 isl_seq_clr(aff
->el
, aff
->size
);
213 isl_int_set(aff
->el
[0], tok
->u
.v
);
216 } else if (tok
->type
== '(') {
219 aff
= accept_affine(s
, v
);
222 if (isl_stream_eat(s
, ')'))
225 isl_stream_error(s
, tok
, "expecting factor");
228 if (isl_stream_eat_if_available(s
, '*')) {
231 isl_int_set_si(f
, 1);
232 if (accept_cst_factor(s
, &f
) < 0) {
236 aff
= isl_vec_scale(aff
, f
);
247 static struct isl_vec
*accept_affine(struct isl_stream
*s
, struct vars
*v
)
249 struct isl_token
*tok
= NULL
;
253 aff
= isl_vec_alloc(v
->ctx
, 1 + v
->n
);
256 isl_seq_clr(aff
->el
, aff
->size
);
259 tok
= isl_stream_next_token(s
);
261 isl_stream_error(s
, NULL
, "unexpected EOF");
264 if (tok
->type
== '-') {
269 if (tok
->type
== '(' || tok
->type
== ISL_TOKEN_IDENT
) {
271 isl_stream_push_token(s
, tok
);
273 aff2
= accept_affine_factor(s
, v
);
275 aff2
= isl_vec_scale(aff2
, s
->ctx
->negone
);
276 aff
= isl_vec_add(aff
, aff2
);
280 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
282 isl_int_neg(tok
->u
.v
, tok
->u
.v
);
283 if (isl_stream_eat_if_available(s
, '*') ||
284 isl_stream_next_token_is(s
, ISL_TOKEN_IDENT
)) {
286 aff2
= accept_affine_factor(s
, v
);
287 aff2
= isl_vec_scale(aff2
, tok
->u
.v
);
288 aff
= isl_vec_add(aff
, aff2
);
292 isl_int_add(aff
->el
[0], aff
->el
[0], tok
->u
.v
);
298 tok
= isl_stream_next_token(s
);
299 if (tok
&& tok
->type
== '-') {
302 } else if (tok
&& tok
->type
== '+') {
305 } else if (tok
&& tok
->type
== ISL_TOKEN_VALUE
&&
306 isl_int_is_neg(tok
->u
.v
)) {
307 isl_stream_push_token(s
, tok
);
310 isl_stream_push_token(s
, tok
);
322 static __isl_give isl_basic_map
*read_var_def(struct isl_stream
*s
,
323 __isl_take isl_basic_map
*bmap
, enum isl_dim_type type
, struct vars
*v
)
328 vec
= accept_affine(s
, v
);
331 v
->v
= variable_new(v
, "", 0, v
->n
);
335 bmap
= isl_basic_map_extend_constraints(bmap
, 1, 0);
336 k
= isl_basic_map_alloc_equality(bmap
);
338 isl_seq_cpy(bmap
->eq
[k
], vec
->el
, vec
->size
);
339 isl_int_set_si(bmap
->eq
[k
][vec
->size
], -1);
347 isl_basic_map_free(bmap
);
351 static __isl_give isl_basic_map
*read_var_list(struct isl_stream
*s
,
352 __isl_take isl_basic_map
*bmap
, enum isl_dim_type type
, struct vars
*v
)
355 struct isl_token
*tok
;
357 while ((tok
= isl_stream_next_token(s
)) != NULL
) {
360 if (tok
->type
== ISL_TOKEN_IDENT
) {
362 int p
= vars_pos(v
, tok
->u
.s
, -1);
369 bmap
= isl_basic_map_add(bmap
, type
, 1);
370 bmap
= set_name(bmap
, type
, i
, v
->v
->name
);
372 } else if (tok
->type
== ISL_TOKEN_IDENT
||
373 tok
->type
== ISL_TOKEN_VALUE
) {
374 if (type
== isl_dim_param
) {
375 isl_stream_error(s
, tok
,
376 "expecting unique identifier");
379 isl_stream_push_token(s
, tok
);
381 bmap
= isl_basic_map_add(bmap
, type
, 1);
382 bmap
= read_var_def(s
, bmap
, type
, v
);
386 tok
= isl_stream_next_token(s
);
387 if (!tok
|| tok
->type
!= ',')
394 isl_stream_push_token(s
, tok
);
399 isl_basic_map_free(bmap
);
403 static __isl_give isl_mat
*accept_affine_list(struct isl_stream
*s
,
408 struct isl_token
*tok
= NULL
;
410 vec
= accept_affine(s
, v
);
411 mat
= isl_mat_from_row_vec(vec
);
416 tok
= isl_stream_next_token(s
);
418 isl_stream_error(s
, NULL
, "unexpected EOF");
421 if (tok
->type
!= ',') {
422 isl_stream_push_token(s
, tok
);
427 vec
= accept_affine(s
, v
);
428 mat
= isl_mat_vec_concat(mat
, vec
);
439 static struct isl_basic_map
*add_div_definition(struct isl_stream
*s
,
440 struct vars
*v
, struct isl_basic_map
*bmap
, int k
)
442 struct isl_token
*tok
;
446 if (isl_stream_eat(s
, '['))
449 tok
= isl_stream_next_token(s
);
452 if (tok
->type
== '(') {
456 isl_stream_push_token(s
, tok
);
458 aff
= accept_affine(s
, v
);
462 isl_seq_cpy(bmap
->div
[k
] + 1, aff
->el
, aff
->size
);
466 if (seen_paren
&& isl_stream_eat(s
, ')'))
468 if (isl_stream_eat(s
, '/'))
471 tok
= isl_stream_next_token(s
);
474 if (tok
->type
!= ISL_TOKEN_VALUE
) {
475 isl_stream_error(s
, tok
, "expected denominator");
476 isl_stream_push_token(s
, tok
);
479 isl_int_set(bmap
->div
[k
][0], tok
->u
.v
);
482 if (isl_stream_eat(s
, ']'))
485 if (isl_basic_map_add_div_constraints(bmap
, k
) < 0)
490 isl_basic_map_free(bmap
);
494 static struct isl_basic_map
*read_defined_var_list(struct isl_stream
*s
,
495 struct vars
*v
, struct isl_basic_map
*bmap
)
497 struct isl_token
*tok
;
499 while ((tok
= isl_stream_next_token(s
)) != NULL
) {
503 unsigned total
= isl_basic_map_total_dim(bmap
);
505 if (tok
->type
!= ISL_TOKEN_IDENT
)
508 p
= vars_pos(v
, tok
->u
.s
, -1);
512 isl_stream_error(s
, tok
, "expecting unique identifier");
516 bmap
= isl_basic_map_cow(bmap
);
517 bmap
= isl_basic_map_extend_dim(bmap
, isl_dim_copy(bmap
->dim
),
520 if ((k
= isl_basic_map_alloc_div(bmap
)) < 0)
522 isl_seq_clr(bmap
->div
[k
], 1 + 1 + total
);
525 tok
= isl_stream_next_token(s
);
526 if (tok
&& tok
->type
== '=') {
528 bmap
= add_div_definition(s
, v
, bmap
, k
);
529 tok
= isl_stream_next_token(s
);
532 if (!tok
|| tok
->type
!= ',')
538 isl_stream_push_token(s
, tok
);
543 isl_basic_map_free(bmap
);
547 static __isl_give isl_basic_map
*read_tuple(struct isl_stream
*s
,
548 __isl_take isl_basic_map
*bmap
, enum isl_dim_type type
, struct vars
*v
)
550 struct isl_token
*tok
;
552 tok
= isl_stream_next_token(s
);
553 if (!tok
|| tok
->type
!= '[') {
554 isl_stream_error(s
, tok
, "expecting '['");
558 bmap
= read_var_list(s
, bmap
, type
, v
);
559 tok
= isl_stream_next_token(s
);
560 if (!tok
|| tok
->type
!= ']') {
561 isl_stream_error(s
, tok
, "expecting ']'");
570 isl_basic_map_free(bmap
);
574 static struct isl_basic_map
*add_constraints(struct isl_stream
*s
,
575 struct vars
*v
, struct isl_basic_map
*bmap
);
577 static struct isl_basic_map
*add_exists(struct isl_stream
*s
,
578 struct vars
*v
, struct isl_basic_map
*bmap
)
580 struct isl_token
*tok
;
587 tok
= isl_stream_next_token(s
);
590 if (tok
->type
== '(') {
594 isl_stream_push_token(s
, tok
);
596 bmap
= read_defined_var_list(s
, v
, bmap
);
600 if (isl_stream_eat(s
, ':'))
602 bmap
= add_constraints(s
, v
, bmap
);
603 if (seen_paren
&& isl_stream_eat(s
, ')'))
607 isl_basic_map_free(bmap
);
611 static __isl_give isl_basic_map
*construct_constraint(
612 __isl_take isl_basic_map
*bmap
, enum isl_token_type type
,
613 isl_int
*left
, isl_int
*right
)
621 len
= 1 + isl_basic_map_total_dim(bmap
);
624 k
= isl_basic_map_alloc_inequality(bmap
);
627 if (type
== ISL_TOKEN_LE
)
628 isl_seq_combine(bmap
->ineq
[k
], ctx
->negone
, left
,
631 else if (type
== ISL_TOKEN_GE
)
632 isl_seq_combine(bmap
->ineq
[k
], ctx
->one
, left
,
635 else if (type
== ISL_TOKEN_LT
) {
636 isl_seq_combine(bmap
->ineq
[k
], ctx
->negone
, left
,
639 isl_int_sub_ui(bmap
->ineq
[k
][0], bmap
->ineq
[k
][0], 1);
640 } else if (type
== ISL_TOKEN_GT
) {
641 isl_seq_combine(bmap
->ineq
[k
], ctx
->one
, left
,
644 isl_int_sub_ui(bmap
->ineq
[k
][0], bmap
->ineq
[k
][0], 1);
646 isl_seq_combine(bmap
->ineq
[k
], ctx
->one
, left
,
649 isl_basic_map_inequality_to_equality(bmap
, k
);
654 isl_basic_map_free(bmap
);
658 static int is_comparator(struct isl_token
*tok
)
675 static struct isl_basic_map
*add_constraint(struct isl_stream
*s
,
676 struct vars
*v
, struct isl_basic_map
*bmap
)
679 unsigned total
= isl_basic_map_total_dim(bmap
);
680 struct isl_token
*tok
= NULL
;
681 struct isl_mat
*aff1
= NULL
, *aff2
= NULL
;
683 tok
= isl_stream_next_token(s
);
686 if (tok
->type
== ISL_TOKEN_EXISTS
) {
688 return add_exists(s
, v
, bmap
);
690 isl_stream_push_token(s
, tok
);
693 bmap
= isl_basic_map_cow(bmap
);
695 aff1
= accept_affine_list(s
, v
);
698 tok
= isl_stream_next_token(s
);
699 if (!is_comparator(tok
)) {
700 isl_stream_error(s
, tok
, "missing operator");
702 isl_stream_push_token(s
, tok
);
706 isl_assert(aff1
->ctx
, aff1
->n_col
== 1 + total
, goto error
);
708 aff2
= accept_affine_list(s
, v
);
711 isl_assert(aff2
->ctx
, aff2
->n_col
== 1 + total
, goto error
);
713 bmap
= isl_basic_map_extend_constraints(bmap
, 0,
714 aff1
->n_row
* aff2
->n_row
);
715 for (i
= 0; i
< aff1
->n_row
; ++i
)
716 for (j
= 0; j
< aff2
->n_row
; ++j
)
717 bmap
= construct_constraint(bmap
, tok
->type
,
718 aff1
->row
[i
], aff2
->row
[j
]);
723 tok
= isl_stream_next_token(s
);
724 if (!is_comparator(tok
)) {
726 isl_stream_push_token(s
, tok
);
738 isl_basic_map_free(bmap
);
742 static struct isl_basic_map
*add_constraints(struct isl_stream
*s
,
743 struct vars
*v
, struct isl_basic_map
*bmap
)
745 struct isl_token
*tok
;
748 bmap
= add_constraint(s
, v
, bmap
);
751 tok
= isl_stream_next_token(s
);
753 isl_stream_error(s
, NULL
, "unexpected EOF");
756 if (tok
->type
!= ISL_TOKEN_AND
)
760 isl_stream_push_token(s
, tok
);
766 isl_basic_map_free(bmap
);
770 static struct isl_basic_map
*read_disjunct(struct isl_stream
*s
,
771 struct vars
*v
, __isl_take isl_dim
*dim
)
774 struct isl_token
*tok
;
775 struct isl_basic_map
*bmap
;
777 bmap
= isl_basic_map_alloc_dim(dim
, 0, 0, 0);
781 tok
= isl_stream_next_token(s
);
784 if (tok
->type
== '(') {
788 isl_stream_push_token(s
, tok
);
790 bmap
= add_constraints(s
, v
, bmap
);
791 bmap
= isl_basic_map_simplify(bmap
);
792 bmap
= isl_basic_map_finalize(bmap
);
794 if (seen_paren
&& isl_stream_eat(s
, ')'))
799 isl_basic_map_free(bmap
);
803 static struct isl_map
*read_disjuncts(struct isl_stream
*s
,
804 struct vars
*v
, __isl_take isl_dim
*dim
)
806 struct isl_token
*tok
;
809 tok
= isl_stream_next_token(s
);
811 isl_stream_error(s
, NULL
, "unexpected EOF");
814 if (tok
->type
== '}') {
815 isl_stream_push_token(s
, tok
);
816 return isl_map_universe(dim
);
818 isl_stream_push_token(s
, tok
);
820 map
= isl_map_empty(isl_dim_copy(dim
));
822 struct isl_basic_map
*bmap
;
825 bmap
= read_disjunct(s
, v
, isl_dim_copy(dim
));
826 map
= isl_map_union(map
, isl_map_from_basic_map(bmap
));
828 vars_drop(v
, v
->n
- n
);
830 tok
= isl_stream_next_token(s
);
831 if (!tok
|| tok
->type
!= ISL_TOKEN_OR
)
836 isl_stream_push_token(s
, tok
);
845 static int polylib_pos_to_isl_pos(__isl_keep isl_basic_map
*bmap
, int pos
)
847 if (pos
< isl_basic_map_dim(bmap
, isl_dim_out
))
848 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
849 isl_basic_map_dim(bmap
, isl_dim_in
) + pos
;
850 pos
-= isl_basic_map_dim(bmap
, isl_dim_out
);
852 if (pos
< isl_basic_map_dim(bmap
, isl_dim_in
))
853 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) + pos
;
854 pos
-= isl_basic_map_dim(bmap
, isl_dim_in
);
856 if (pos
< isl_basic_map_dim(bmap
, isl_dim_div
))
857 return 1 + isl_basic_map_dim(bmap
, isl_dim_param
) +
858 isl_basic_map_dim(bmap
, isl_dim_in
) +
859 isl_basic_map_dim(bmap
, isl_dim_out
) + pos
;
860 pos
-= isl_basic_map_dim(bmap
, isl_dim_div
);
862 if (pos
< isl_basic_map_dim(bmap
, isl_dim_param
))
868 static __isl_give isl_basic_map
*basic_map_read_polylib_constraint(
869 struct isl_stream
*s
, __isl_take isl_basic_map
*bmap
)
872 struct isl_token
*tok
;
882 nparam
= isl_basic_map_dim(bmap
, isl_dim_param
);
883 dim
= isl_basic_map_dim(bmap
, isl_dim_out
);
885 tok
= isl_stream_next_token(s
);
886 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
887 isl_stream_error(s
, tok
, "expecting coefficient");
889 isl_stream_push_token(s
, tok
);
892 if (!tok
->on_new_line
) {
893 isl_stream_error(s
, tok
, "coefficient should appear on new line");
894 isl_stream_push_token(s
, tok
);
898 type
= isl_int_get_si(tok
->u
.v
);
901 isl_assert(s
->ctx
, type
== 0 || type
== 1, goto error
);
903 k
= isl_basic_map_alloc_equality(bmap
);
906 k
= isl_basic_map_alloc_inequality(bmap
);
912 for (j
= 0; j
< 1 + isl_basic_map_total_dim(bmap
); ++j
) {
914 tok
= isl_stream_next_token(s
);
915 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
916 isl_stream_error(s
, tok
, "expecting coefficient");
918 isl_stream_push_token(s
, tok
);
921 if (tok
->on_new_line
) {
922 isl_stream_error(s
, tok
,
923 "coefficient should not appear on new line");
924 isl_stream_push_token(s
, tok
);
927 pos
= polylib_pos_to_isl_pos(bmap
, j
);
928 isl_int_set(c
[pos
], tok
->u
.v
);
934 isl_basic_map_free(bmap
);
938 static __isl_give isl_basic_map
*basic_map_read_polylib(struct isl_stream
*s
,
942 struct isl_token
*tok
;
943 struct isl_token
*tok2
;
946 unsigned in
= 0, out
, local
= 0;
947 struct isl_basic_map
*bmap
= NULL
;
952 tok
= isl_stream_next_token(s
);
954 isl_stream_error(s
, NULL
, "unexpected EOF");
957 tok2
= isl_stream_next_token(s
);
960 isl_stream_error(s
, NULL
, "unexpected EOF");
963 n_row
= isl_int_get_si(tok
->u
.v
);
964 n_col
= isl_int_get_si(tok2
->u
.v
);
965 on_new_line
= tok2
->on_new_line
;
966 isl_token_free(tok2
);
968 isl_assert(s
->ctx
, !on_new_line
, return NULL
);
969 isl_assert(s
->ctx
, n_row
>= 0, return NULL
);
970 isl_assert(s
->ctx
, n_col
>= 2 + nparam
, return NULL
);
971 tok
= isl_stream_next_token_on_same_line(s
);
973 if (tok
->type
!= ISL_TOKEN_VALUE
) {
974 isl_stream_error(s
, tok
,
975 "expecting number of output dimensions");
976 isl_stream_push_token(s
, tok
);
979 out
= isl_int_get_si(tok
->u
.v
);
982 tok
= isl_stream_next_token_on_same_line(s
);
983 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
984 isl_stream_error(s
, tok
,
985 "expecting number of input dimensions");
987 isl_stream_push_token(s
, tok
);
990 in
= isl_int_get_si(tok
->u
.v
);
993 tok
= isl_stream_next_token_on_same_line(s
);
994 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
995 isl_stream_error(s
, tok
,
996 "expecting number of existentials");
998 isl_stream_push_token(s
, tok
);
1001 local
= isl_int_get_si(tok
->u
.v
);
1002 isl_token_free(tok
);
1004 tok
= isl_stream_next_token_on_same_line(s
);
1005 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1006 isl_stream_error(s
, tok
,
1007 "expecting number of parameters");
1009 isl_stream_push_token(s
, tok
);
1012 nparam
= isl_int_get_si(tok
->u
.v
);
1013 isl_token_free(tok
);
1014 if (n_col
!= 1 + out
+ in
+ local
+ nparam
+ 1) {
1015 isl_stream_error(s
, NULL
,
1016 "dimensions don't match");
1020 out
= n_col
- 2 - nparam
;
1021 bmap
= isl_basic_map_alloc(s
->ctx
, nparam
, in
, out
, local
, n_row
, n_row
);
1025 for (i
= 0; i
< local
; ++i
) {
1026 int k
= isl_basic_map_alloc_div(bmap
);
1031 for (i
= 0; i
< n_row
; ++i
)
1032 bmap
= basic_map_read_polylib_constraint(s
, bmap
);
1034 tok
= isl_stream_next_token_on_same_line(s
);
1036 isl_stream_error(s
, tok
, "unexpected extra token on line");
1037 isl_stream_push_token(s
, tok
);
1041 bmap
= isl_basic_map_simplify(bmap
);
1042 bmap
= isl_basic_map_finalize(bmap
);
1045 isl_basic_map_free(bmap
);
1049 static struct isl_map
*map_read_polylib(struct isl_stream
*s
, int nparam
)
1051 struct isl_token
*tok
;
1052 struct isl_token
*tok2
;
1054 struct isl_map
*map
;
1056 tok
= isl_stream_next_token(s
);
1058 isl_stream_error(s
, NULL
, "unexpected EOF");
1061 tok2
= isl_stream_next_token_on_same_line(s
);
1063 isl_stream_push_token(s
, tok2
);
1064 isl_stream_push_token(s
, tok
);
1065 return isl_map_from_basic_map(basic_map_read_polylib(s
, nparam
));
1067 n
= isl_int_get_si(tok
->u
.v
);
1068 isl_token_free(tok
);
1070 isl_assert(s
->ctx
, n
>= 1, return NULL
);
1072 map
= isl_map_from_basic_map(basic_map_read_polylib(s
, nparam
));
1074 for (i
= 1; i
< n
; ++i
)
1075 map
= isl_map_union(map
,
1076 isl_map_from_basic_map(basic_map_read_polylib(s
, nparam
)));
1081 static int optional_power(struct isl_stream
*s
)
1084 struct isl_token
*tok
;
1086 tok
= isl_stream_next_token(s
);
1089 if (tok
->type
!= '^') {
1090 isl_stream_push_token(s
, tok
);
1093 isl_token_free(tok
);
1094 tok
= isl_stream_next_token(s
);
1095 if (!tok
|| tok
->type
!= ISL_TOKEN_VALUE
) {
1096 isl_stream_error(s
, tok
, "expecting exponent");
1098 isl_stream_push_token(s
, tok
);
1101 pow
= isl_int_get_si(tok
->u
.v
);
1102 isl_token_free(tok
);
1106 static __isl_give isl_div
*read_div(struct isl_stream
*s
,
1107 __isl_keep isl_basic_map
*bmap
, struct vars
*v
)
1109 unsigned total
= isl_basic_map_total_dim(bmap
);
1112 bmap
= isl_basic_map_copy(bmap
);
1113 bmap
= isl_basic_map_cow(bmap
);
1114 bmap
= isl_basic_map_extend_dim(bmap
, isl_dim_copy(bmap
->dim
),
1117 if ((k
= isl_basic_map_alloc_div(bmap
)) < 0)
1119 isl_seq_clr(bmap
->div
[k
], 1 + 1 + total
);
1120 bmap
= add_div_definition(s
, v
, bmap
, k
);
1122 return isl_basic_map_div(bmap
, k
);
1124 isl_basic_map_free(bmap
);
1128 static __isl_give isl_qpolynomial
*read_term(struct isl_stream
*s
,
1129 __isl_keep isl_basic_map
*bmap
, struct vars
*v
);
1131 static __isl_give isl_qpolynomial
*read_factor(struct isl_stream
*s
,
1132 __isl_keep isl_basic_map
*bmap
, struct vars
*v
)
1134 struct isl_qpolynomial
*qp
;
1135 struct isl_token
*tok
;
1137 tok
= isl_stream_next_token(s
);
1139 isl_stream_error(s
, NULL
, "unexpected EOF");
1142 if (tok
->type
== '(') {
1143 isl_token_free(tok
);
1144 qp
= read_term(s
, bmap
, v
);
1147 if (isl_stream_eat(s
, ')'))
1149 } else if (tok
->type
== ISL_TOKEN_VALUE
) {
1150 struct isl_token
*tok2
;
1151 tok2
= isl_stream_next_token(s
);
1152 if (tok2
&& tok2
->type
== '/') {
1153 isl_token_free(tok2
);
1154 tok2
= isl_stream_next_token(s
);
1155 if (!tok2
|| tok2
->type
!= ISL_TOKEN_VALUE
) {
1156 isl_stream_error(s
, tok2
, "expected denominator");
1157 isl_token_free(tok
);
1158 isl_token_free(tok2
);
1161 qp
= isl_qpolynomial_rat_cst(isl_basic_map_get_dim(bmap
),
1162 tok
->u
.v
, tok2
->u
.v
);
1163 isl_token_free(tok2
);
1165 isl_stream_push_token(s
, tok2
);
1166 qp
= isl_qpolynomial_cst(isl_basic_map_get_dim(bmap
),
1169 isl_token_free(tok
);
1170 } else if (tok
->type
== ISL_TOKEN_INFTY
) {
1171 isl_token_free(tok
);
1172 qp
= isl_qpolynomial_infty(isl_basic_map_get_dim(bmap
));
1173 } else if (tok
->type
== ISL_TOKEN_NAN
) {
1174 isl_token_free(tok
);
1175 qp
= isl_qpolynomial_nan(isl_basic_map_get_dim(bmap
));
1176 } else if (tok
->type
== ISL_TOKEN_IDENT
) {
1178 int pos
= vars_pos(v
, tok
->u
.s
, -1);
1180 isl_token_free(tok
);
1184 isl_stream_error(s
, tok
, "unknown identifier");
1187 pow
= optional_power(s
);
1188 qp
= isl_qpolynomial_pow(isl_basic_map_get_dim(bmap
), pos
, pow
);
1189 } else if (tok
->type
== '[') {
1193 isl_stream_push_token(s
, tok
);
1194 div
= read_div(s
, bmap
, v
);
1195 pow
= optional_power(s
);
1196 qp
= isl_qpolynomial_div_pow(div
, pow
);
1197 } else if (tok
->type
== '-') {
1198 struct isl_qpolynomial
*qp2
;
1200 isl_token_free(tok
);
1201 qp
= isl_qpolynomial_cst(isl_basic_map_get_dim(bmap
),
1203 qp2
= read_factor(s
, bmap
, v
);
1204 qp
= isl_qpolynomial_mul(qp
, qp2
);
1206 isl_stream_error(s
, tok
, "unexpected isl_token");
1207 isl_stream_push_token(s
, tok
);
1211 if (isl_stream_eat_if_available(s
, '*') ||
1212 isl_stream_next_token_is(s
, ISL_TOKEN_IDENT
)) {
1213 struct isl_qpolynomial
*qp2
;
1215 qp2
= read_factor(s
, bmap
, v
);
1216 qp
= isl_qpolynomial_mul(qp
, qp2
);
1221 isl_qpolynomial_free(qp
);
1225 static __isl_give isl_qpolynomial
*read_term(struct isl_stream
*s
,
1226 __isl_keep isl_basic_map
*bmap
, struct vars
*v
)
1228 struct isl_token
*tok
;
1229 struct isl_qpolynomial
*qp
;
1231 qp
= read_factor(s
, bmap
, v
);
1234 tok
= isl_stream_next_token(s
);
1238 if (tok
->type
== '+') {
1239 struct isl_qpolynomial
*qp2
;
1241 isl_token_free(tok
);
1242 qp2
= read_factor(s
, bmap
, v
);
1243 qp
= isl_qpolynomial_add(qp
, qp2
);
1244 } else if (tok
->type
== '-') {
1245 struct isl_qpolynomial
*qp2
;
1247 isl_token_free(tok
);
1248 qp2
= read_factor(s
, bmap
, v
);
1249 qp
= isl_qpolynomial_sub(qp
, qp2
);
1250 } else if (tok
->type
== ISL_TOKEN_VALUE
&&
1251 isl_int_is_neg(tok
->u
.v
)) {
1252 struct isl_qpolynomial
*qp2
;
1254 qp2
= isl_qpolynomial_cst(isl_basic_map_get_dim(bmap
),
1256 isl_token_free(tok
);
1257 qp
= isl_qpolynomial_add(qp
, qp2
);
1259 isl_stream_push_token(s
, tok
);
1267 static __isl_give isl_map
*read_optional_disjuncts(struct isl_stream
*s
,
1268 __isl_take isl_basic_map
*bmap
, struct vars
*v
)
1270 struct isl_token
*tok
;
1271 struct isl_map
*map
;
1273 tok
= isl_stream_next_token(s
);
1275 isl_stream_error(s
, NULL
, "unexpected EOF");
1278 map
= isl_map_from_basic_map(isl_basic_map_copy(bmap
));
1279 if (tok
->type
== ':') {
1280 isl_token_free(tok
);
1281 map
= isl_map_intersect(map
,
1282 read_disjuncts(s
, v
, isl_basic_map_get_dim(bmap
)));
1284 isl_stream_push_token(s
, tok
);
1286 isl_basic_map_free(bmap
);
1290 isl_basic_map_free(bmap
);
1294 static struct isl_obj
obj_read_poly(struct isl_stream
*s
,
1295 __isl_take isl_basic_map
*bmap
, struct vars
*v
, int n
)
1297 struct isl_obj obj
= { isl_obj_pw_qpolynomial
, NULL
};
1298 struct isl_pw_qpolynomial
*pwqp
;
1299 struct isl_qpolynomial
*qp
;
1300 struct isl_map
*map
;
1301 struct isl_set
*set
;
1303 bmap
= isl_basic_map_reverse(bmap
);
1305 qp
= read_term(s
, bmap
, v
);
1306 map
= read_optional_disjuncts(s
, bmap
, v
);
1307 set
= isl_set_from_map(map
);
1309 pwqp
= isl_pw_qpolynomial_alloc(set
, qp
);
1311 vars_drop(v
, v
->n
- n
);
1317 static struct isl_obj
obj_read_body(struct isl_stream
*s
,
1318 __isl_take isl_basic_map
*bmap
, struct vars
*v
, isl_obj_type type
)
1320 struct isl_map
*map
= NULL
;
1321 struct isl_token
*tok
;
1322 struct isl_obj obj
= { type
, NULL
};
1325 if (!isl_stream_next_token_is(s
, '['))
1326 return obj_read_poly(s
, bmap
, v
, n
);
1328 bmap
= read_tuple(s
, bmap
, isl_dim_in
, v
);
1331 tok
= isl_stream_next_token(s
);
1332 if (tok
&& tok
->type
== ISL_TOKEN_TO
) {
1333 obj
.type
= isl_obj_map
;
1334 isl_token_free(tok
);
1335 tok
= isl_stream_next_token(s
);
1336 if (tok
&& tok
->type
!= '[') {
1337 isl_stream_push_token(s
, tok
);
1338 return obj_read_poly(s
, bmap
, v
, n
);
1340 isl_stream_push_token(s
, tok
);
1341 bmap
= read_tuple(s
, bmap
, isl_dim_out
, v
);
1345 bmap
= isl_basic_map_reverse(bmap
);
1347 isl_stream_push_token(s
, tok
);
1350 map
= read_optional_disjuncts(s
, bmap
, v
);
1352 vars_drop(v
, v
->n
- n
);
1357 isl_basic_map_free(bmap
);
1358 obj
.type
= isl_obj_none
;
1362 static struct isl_obj
obj_add(struct isl_ctx
*ctx
,
1363 struct isl_obj obj1
, struct isl_obj obj2
)
1365 isl_assert(ctx
, obj1
.type
== obj2
.type
, goto error
);
1366 obj1
.v
= obj1
.type
->add(obj1
.v
, obj2
.v
);
1369 obj1
.type
->free(obj1
.v
);
1370 obj2
.type
->free(obj2
.v
);
1371 obj1
.type
= isl_obj_none
;
1376 static struct isl_obj
obj_read(struct isl_stream
*s
, int nparam
)
1378 struct isl_basic_map
*bmap
= NULL
;
1379 struct isl_token
*tok
;
1380 struct vars
*v
= NULL
;
1381 struct isl_obj obj
= { isl_obj_set
, NULL
};
1383 tok
= isl_stream_next_token(s
);
1385 isl_stream_error(s
, NULL
, "unexpected EOF");
1388 if (tok
->type
== ISL_TOKEN_VALUE
) {
1389 struct isl_map
*map
;
1390 isl_stream_push_token(s
, tok
);
1391 map
= map_read_polylib(s
, nparam
);
1394 if (isl_map_dim(map
, isl_dim_in
) > 0)
1395 obj
.type
= isl_obj_map
;
1399 v
= vars_new(s
->ctx
);
1401 isl_stream_push_token(s
, tok
);
1404 bmap
= isl_basic_map_alloc(s
->ctx
, 0, 0, 0, 0, 0, 0);
1405 if (tok
->type
== '[') {
1406 isl_stream_push_token(s
, tok
);
1407 bmap
= read_tuple(s
, bmap
, isl_dim_param
, v
);
1411 isl_assert(s
->ctx
, nparam
== v
->n
, goto error
);
1412 tok
= isl_stream_next_token(s
);
1413 if (!tok
|| tok
->type
!= ISL_TOKEN_TO
) {
1414 isl_stream_error(s
, tok
, "expecting '->'");
1416 isl_stream_push_token(s
, tok
);
1419 isl_token_free(tok
);
1420 tok
= isl_stream_next_token(s
);
1421 } else if (nparam
> 0)
1422 bmap
= isl_basic_map_add(bmap
, isl_dim_param
, nparam
);
1423 if (!tok
|| tok
->type
!= '{') {
1424 isl_stream_error(s
, tok
, "expecting '{'");
1426 isl_stream_push_token(s
, tok
);
1429 isl_token_free(tok
);
1431 tok
= isl_stream_next_token(s
);
1434 else if (tok
->type
== ISL_TOKEN_IDENT
&& !strcmp(tok
->u
.s
, "Sym")) {
1435 isl_token_free(tok
);
1436 if (isl_stream_eat(s
, '='))
1438 bmap
= read_tuple(s
, bmap
, isl_dim_param
, v
);
1442 isl_assert(s
->ctx
, nparam
== v
->n
, goto error
);
1444 isl_stream_push_token(s
, tok
);
1449 o
= obj_read_body(s
, isl_basic_map_copy(bmap
), v
, obj
.type
);
1450 if (o
.type
== isl_obj_none
)
1455 obj
= obj_add(s
->ctx
, obj
, o
);
1456 if (obj
.type
== isl_obj_none
)
1459 tok
= isl_stream_next_token(s
);
1460 if (!tok
|| tok
->type
!= ';')
1462 isl_token_free(tok
);
1465 if (tok
&& tok
->type
== '}') {
1466 isl_token_free(tok
);
1468 isl_stream_error(s
, tok
, "unexpected isl_token");
1470 isl_token_free(tok
);
1474 isl_basic_map_free(bmap
);
1478 isl_basic_map_free(bmap
);
1479 obj
.type
->free(obj
.v
);
1486 struct isl_obj
isl_stream_read_obj(struct isl_stream
*s
)
1488 return obj_read(s
, -1);
1491 __isl_give isl_map
*isl_stream_read_map(struct isl_stream
*s
, int nparam
)
1494 struct isl_map
*map
;
1496 obj
= obj_read(s
, nparam
);
1498 isl_assert(s
->ctx
, obj
.type
== isl_obj_map
||
1499 obj
.type
== isl_obj_set
, goto error
);
1503 obj
.type
->free(obj
.v
);
1507 __isl_give isl_set
*isl_stream_read_set(struct isl_stream
*s
, int nparam
)
1510 struct isl_set
*set
;
1512 obj
= obj_read(s
, nparam
);
1514 isl_assert(s
->ctx
, obj
.type
== isl_obj_set
, goto error
);
1518 obj
.type
->free(obj
.v
);
1522 static struct isl_basic_map
*basic_map_read(struct isl_stream
*s
, int nparam
)
1525 struct isl_map
*map
;
1526 struct isl_basic_map
*bmap
;
1528 obj
= obj_read(s
, nparam
);
1533 isl_assert(map
->ctx
, map
->n
<= 1, goto error
);
1536 bmap
= isl_basic_map_empty_like_map(map
);
1538 bmap
= isl_basic_map_copy(map
->p
[0]);
1548 __isl_give isl_basic_map
*isl_basic_map_read_from_file(isl_ctx
*ctx
,
1549 FILE *input
, int nparam
)
1551 struct isl_basic_map
*bmap
;
1552 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
1555 bmap
= basic_map_read(s
, nparam
);
1560 __isl_give isl_basic_set
*isl_basic_set_read_from_file(isl_ctx
*ctx
,
1561 FILE *input
, int nparam
)
1563 struct isl_basic_map
*bmap
;
1564 bmap
= isl_basic_map_read_from_file(ctx
, input
, nparam
);
1567 isl_assert(ctx
, isl_basic_map_n_in(bmap
) == 0, goto error
);
1568 return (struct isl_basic_set
*)bmap
;
1570 isl_basic_map_free(bmap
);
1574 struct isl_basic_map
*isl_basic_map_read_from_str(struct isl_ctx
*ctx
,
1575 const char *str
, int nparam
)
1577 struct isl_basic_map
*bmap
;
1578 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
1581 bmap
= basic_map_read(s
, nparam
);
1586 struct isl_basic_set
*isl_basic_set_read_from_str(struct isl_ctx
*ctx
,
1587 const char *str
, int nparam
)
1589 struct isl_basic_map
*bmap
;
1590 bmap
= isl_basic_map_read_from_str(ctx
, str
, nparam
);
1593 isl_assert(ctx
, isl_basic_map_n_in(bmap
) == 0, goto error
);
1594 return (struct isl_basic_set
*)bmap
;
1596 isl_basic_map_free(bmap
);
1600 __isl_give isl_map
*isl_map_read_from_file(struct isl_ctx
*ctx
,
1601 FILE *input
, int nparam
)
1603 struct isl_map
*map
;
1604 struct isl_stream
*s
= isl_stream_new_file(ctx
, input
);
1607 map
= isl_stream_read_map(s
, nparam
);
1612 __isl_give isl_map
*isl_map_read_from_str(struct isl_ctx
*ctx
,
1613 const char *str
, int nparam
)
1615 struct isl_map
*map
;
1616 struct isl_stream
*s
= isl_stream_new_str(ctx
, str
);
1619 map
= isl_stream_read_map(s
, nparam
);
1624 __isl_give isl_set
*isl_set_read_from_file(struct isl_ctx
*ctx
,
1625 FILE *input
, int nparam
)
1627 struct isl_map
*map
;
1628 map
= isl_map_read_from_file(ctx
, input
, nparam
);
1631 isl_assert(ctx
, isl_map_n_in(map
) == 0, goto error
);
1632 return (struct isl_set
*)map
;
1638 struct isl_set
*isl_set_read_from_str(struct isl_ctx
*ctx
,
1639 const char *str
, int nparam
)
1641 struct isl_map
*map
;
1642 map
= isl_map_read_from_str(ctx
, str
, nparam
);
1645 isl_assert(ctx
, isl_map_n_in(map
) == 0, goto error
);
1646 return (struct isl_set
*)map
;
1652 static char *next_line(FILE *input
, char *line
, unsigned len
)
1657 if (!(p
= fgets(line
, len
, input
)))
1659 while (isspace(*p
) && *p
!= '\n')
1661 } while (*p
== '#' || *p
== '\n');
1666 static struct isl_vec
*isl_vec_read_from_file_polylib(struct isl_ctx
*ctx
,
1669 struct isl_vec
*vec
= NULL
;
1678 isl_assert(ctx
, next_line(input
, line
, sizeof(line
)), return NULL
);
1679 isl_assert(ctx
, sscanf(line
, "%u", &size
) == 1, return NULL
);
1681 vec
= isl_vec_alloc(ctx
, size
);
1683 p
= next_line(input
, line
, sizeof(line
));
1684 isl_assert(ctx
, p
, goto error
);
1686 for (j
= 0; j
< size
; ++j
) {
1687 n
= sscanf(p
, "%s%n", val
, &offset
);
1688 isl_assert(ctx
, n
!= 0, goto error
);
1689 isl_int_read(vec
->el
[j
], val
);
1699 struct isl_vec
*isl_vec_read_from_file(struct isl_ctx
*ctx
,
1700 FILE *input
, unsigned input_format
)
1702 if (input_format
== ISL_FORMAT_POLYLIB
)
1703 return isl_vec_read_from_file_polylib(ctx
, input
);
1705 isl_assert(ctx
, 0, return NULL
);
1708 __isl_give isl_pw_qpolynomial
*isl_stream_read_pw_qpolynomial(
1709 struct isl_stream
*s
)
1712 struct isl_pw_qpolynomial
*pwqp
;
1714 obj
= obj_read(s
, -1);
1716 isl_assert(s
->ctx
, obj
.type
== isl_obj_pw_qpolynomial
,
1721 obj
.type
->free(obj
.v
);