1 #define xFN(TYPE,NAME) TYPE ## _ ## NAME
2 #define FN(TYPE,NAME) xFN(TYPE,NAME)
3 #define xS(TYPE,NAME) struct TYPE ## _ ## NAME
4 #define S(TYPE,NAME) xS(TYPE,NAME)
7 __isl_give PW
*FN(PW
,alloc_size
)(__isl_take isl_space
*dim
,
8 enum isl_fold type
, int n
)
10 __isl_give PW
*FN(PW
,alloc_size
)(__isl_take isl_space
*dim
, int n
)
18 ctx
= isl_space_get_ctx(dim
);
19 isl_assert(ctx
, n
>= 0, goto error
);
20 pw
= isl_alloc(ctx
, struct PW
,
21 sizeof(struct PW
) + (n
- 1) * sizeof(S(PW
,piece
)));
39 __isl_give PW
*FN(PW
,ZERO
)(__isl_take isl_space
*dim
, enum isl_fold type
)
41 return FN(PW
,alloc_size
)(dim
, type
, 0);
44 __isl_give PW
*FN(PW
,ZERO
)(__isl_take isl_space
*dim
)
46 return FN(PW
,alloc_size
)(dim
, 0);
50 __isl_give PW
*FN(PW
,add_piece
)(__isl_take PW
*pw
,
51 __isl_take isl_set
*set
, __isl_take EL
*el
)
54 isl_space
*el_dim
= NULL
;
56 if (!pw
|| !set
|| !el
)
59 if (isl_set_plain_is_empty(set
) || FN(EL
,EL_IS_ZERO
)(el
)) {
65 ctx
= isl_set_get_ctx(set
);
67 if (pw
->type
!= el
->type
)
68 isl_die(ctx
, isl_error_invalid
, "fold types don't match",
71 el_dim
= FN(EL
,get_space(el
));
72 isl_assert(ctx
, isl_space_is_equal(pw
->dim
, el_dim
), goto error
);
73 isl_assert(ctx
, pw
->n
< pw
->size
, goto error
);
75 pw
->p
[pw
->n
].set
= set
;
76 pw
->p
[pw
->n
].FIELD
= el
;
79 isl_space_free(el_dim
);
82 isl_space_free(el_dim
);
90 __isl_give PW
*FN(PW
,alloc
)(enum isl_fold type
,
91 __isl_take isl_set
*set
, __isl_take EL
*el
)
93 __isl_give PW
*FN(PW
,alloc
)(__isl_take isl_set
*set
, __isl_take EL
*el
)
102 pw
= FN(PW
,alloc_size
)(FN(EL
,get_space
)(el
), type
, 1);
104 pw
= FN(PW
,alloc_size
)(FN(EL
,get_space
)(el
), 1);
107 return FN(PW
,add_piece
)(pw
, set
, el
);
114 __isl_give PW
*FN(PW
,dup
)(__isl_keep PW
*pw
)
123 dup
= FN(PW
,alloc_size
)(isl_space_copy(pw
->dim
), pw
->type
, pw
->n
);
125 dup
= FN(PW
,alloc_size
)(isl_space_copy(pw
->dim
), pw
->n
);
130 for (i
= 0; i
< pw
->n
; ++i
)
131 dup
= FN(PW
,add_piece
)(dup
, isl_set_copy(pw
->p
[i
].set
),
132 FN(EL
,copy
)(pw
->p
[i
].FIELD
));
137 __isl_give PW
*FN(PW
,cow
)(__isl_take PW
*pw
)
145 return FN(PW
,dup
)(pw
);
148 __isl_give PW
*FN(PW
,copy
)(__isl_keep PW
*pw
)
157 void *FN(PW
,free
)(__isl_take PW
*pw
)
166 for (i
= 0; i
< pw
->n
; ++i
) {
167 isl_set_free(pw
->p
[i
].set
);
168 FN(EL
,free
)(pw
->p
[i
].FIELD
);
170 isl_space_free(pw
->dim
);
176 const char *FN(PW
,get_dim_name
)(__isl_keep PW
*pw
, enum isl_dim_type type
,
179 return pw
? isl_space_get_dim_name(pw
->dim
, type
, pos
) : NULL
;
182 __isl_give isl_id
*FN(PW
,get_dim_id
)(__isl_keep PW
*pw
, enum isl_dim_type type
,
185 return pw
? isl_space_get_dim_id(pw
->dim
, type
, pos
) : NULL
;
188 const char *FN(PW
,get_tuple_name
)(__isl_keep PW
*pw
, enum isl_dim_type type
)
190 return pw
? isl_space_get_tuple_name(pw
->dim
, type
) : NULL
;
193 int FN(PW
,has_tuple_id
)(__isl_keep PW
*pw
, enum isl_dim_type type
)
195 return pw
? isl_space_has_tuple_id(pw
->dim
, type
) : -1;
198 __isl_give isl_id
*FN(PW
,get_tuple_id
)(__isl_keep PW
*pw
, enum isl_dim_type type
)
200 return pw
? isl_space_get_tuple_id(pw
->dim
, type
) : NULL
;
203 int FN(PW
,IS_ZERO
)(__isl_keep PW
*pw
)
212 __isl_give PW
*FN(PW
,realign_domain
)(__isl_take PW
*pw
,
213 __isl_take isl_reordering
*exp
)
221 for (i
= 0; i
< pw
->n
; ++i
) {
222 pw
->p
[i
].set
= isl_set_realign(pw
->p
[i
].set
,
223 isl_reordering_copy(exp
));
226 pw
->p
[i
].FIELD
= FN(EL
,realign_domain
)(pw
->p
[i
].FIELD
,
227 isl_reordering_copy(exp
));
232 pw
= FN(PW
,reset_domain_space
)(pw
, isl_space_copy(exp
->dim
));
234 isl_reordering_free(exp
);
237 isl_reordering_free(exp
);
242 /* Align the parameters of "pw" to those of "model".
244 __isl_give PW
*FN(PW
,align_params
)(__isl_take PW
*pw
, __isl_take isl_space
*model
)
251 ctx
= isl_space_get_ctx(model
);
252 if (!isl_space_has_named_params(model
))
253 isl_die(ctx
, isl_error_invalid
,
254 "model has unnamed parameters", goto error
);
255 if (!isl_space_has_named_params(pw
->dim
))
256 isl_die(ctx
, isl_error_invalid
,
257 "input has unnamed parameters", goto error
);
258 if (!isl_space_match(pw
->dim
, isl_dim_param
, model
, isl_dim_param
)) {
261 model
= isl_space_drop_dims(model
, isl_dim_in
,
262 0, isl_space_dim(model
, isl_dim_in
));
263 model
= isl_space_drop_dims(model
, isl_dim_out
,
264 0, isl_space_dim(model
, isl_dim_out
));
265 exp
= isl_parameter_alignment_reordering(pw
->dim
, model
);
266 exp
= isl_reordering_extend_space(exp
,
267 FN(PW
,get_domain_space
)(pw
));
268 pw
= FN(PW
,realign_domain
)(pw
, exp
);
271 isl_space_free(model
);
274 isl_space_free(model
);
279 static __isl_give PW
*FN(PW
,align_params_pw_pw_and
)(__isl_take PW
*pw1
,
281 __isl_give PW
*(*fn
)(__isl_take PW
*pw1
, __isl_take PW
*pw2
))
287 if (isl_space_match(pw1
->dim
, isl_dim_param
, pw2
->dim
, isl_dim_param
))
289 ctx
= FN(PW
,get_ctx
)(pw1
);
290 if (!isl_space_has_named_params(pw1
->dim
) ||
291 !isl_space_has_named_params(pw2
->dim
))
292 isl_die(ctx
, isl_error_invalid
,
293 "unaligned unnamed parameters", goto error
);
294 pw1
= FN(PW
,align_params
)(pw1
, FN(PW
,get_space
)(pw2
));
295 pw2
= FN(PW
,align_params
)(pw2
, FN(PW
,get_space
)(pw1
));
303 static __isl_give PW
*FN(PW
,align_params_pw_set_and
)(__isl_take PW
*pw
,
304 __isl_take isl_set
*set
,
305 __isl_give PW
*(*fn
)(__isl_take PW
*pw
, __isl_take isl_set
*set
))
311 if (isl_space_match(pw
->dim
, isl_dim_param
, set
->dim
, isl_dim_param
))
313 ctx
= FN(PW
,get_ctx
)(pw
);
314 if (!isl_space_has_named_params(pw
->dim
) ||
315 !isl_space_has_named_params(set
->dim
))
316 isl_die(ctx
, isl_error_invalid
,
317 "unaligned unnamed parameters", goto error
);
318 pw
= FN(PW
,align_params
)(pw
, isl_set_get_space(set
));
319 set
= isl_set_align_params(set
, FN(PW
,get_space
)(pw
));
328 static __isl_give PW
*FN(PW
,union_add_aligned
)(__isl_take PW
*pw1
,
339 ctx
= isl_space_get_ctx(pw1
->dim
);
341 if (pw1
->type
!= pw2
->type
)
342 isl_die(ctx
, isl_error_invalid
,
343 "fold types don't match", goto error
);
345 isl_assert(ctx
, isl_space_is_equal(pw1
->dim
, pw2
->dim
), goto error
);
347 if (FN(PW
,IS_ZERO
)(pw1
)) {
352 if (FN(PW
,IS_ZERO
)(pw2
)) {
357 n
= (pw1
->n
+ 1) * (pw2
->n
+ 1);
359 res
= FN(PW
,alloc_size
)(isl_space_copy(pw1
->dim
), pw1
->type
, n
);
361 res
= FN(PW
,alloc_size
)(isl_space_copy(pw1
->dim
), n
);
364 for (i
= 0; i
< pw1
->n
; ++i
) {
365 set
= isl_set_copy(pw1
->p
[i
].set
);
366 for (j
= 0; j
< pw2
->n
; ++j
) {
367 struct isl_set
*common
;
369 set
= isl_set_subtract(set
,
370 isl_set_copy(pw2
->p
[j
].set
));
371 common
= isl_set_intersect(isl_set_copy(pw1
->p
[i
].set
),
372 isl_set_copy(pw2
->p
[j
].set
));
373 if (isl_set_plain_is_empty(common
)) {
374 isl_set_free(common
);
378 sum
= FN(EL
,add_on_domain
)(common
,
379 FN(EL
,copy
)(pw1
->p
[i
].FIELD
),
380 FN(EL
,copy
)(pw2
->p
[j
].FIELD
));
382 res
= FN(PW
,add_piece
)(res
, common
, sum
);
384 res
= FN(PW
,add_piece
)(res
, set
, FN(EL
,copy
)(pw1
->p
[i
].FIELD
));
387 for (j
= 0; j
< pw2
->n
; ++j
) {
388 set
= isl_set_copy(pw2
->p
[j
].set
);
389 for (i
= 0; i
< pw1
->n
; ++i
)
390 set
= isl_set_subtract(set
,
391 isl_set_copy(pw1
->p
[i
].set
));
392 res
= FN(PW
,add_piece
)(res
, set
, FN(EL
,copy
)(pw2
->p
[j
].FIELD
));
405 /* Private version of "union_add". For isl_pw_qpolynomial and
406 * isl_pw_qpolynomial_fold, we prefer to simply call it "add".
408 static __isl_give PW
*FN(PW
,union_add_
)(__isl_take PW
*pw1
, __isl_take PW
*pw2
)
410 return FN(PW
,align_params_pw_pw_and
)(pw1
, pw2
,
411 &FN(PW
,union_add_aligned
));
414 /* Make sure "pw" has room for at least "n" more pieces.
416 * If there is only one reference to pw, we extend it in place.
417 * Otherwise, we create a new PW and copy the pieces.
419 static __isl_give PW
*FN(PW
,grow
)(__isl_take PW
*pw
, int n
)
427 if (pw
->n
+ n
<= pw
->size
)
429 ctx
= FN(PW
,get_ctx
)(pw
);
432 res
= isl_realloc(ctx
, pw
, struct PW
,
433 sizeof(struct PW
) + (n
- 1) * sizeof(S(PW
,piece
)));
435 return FN(PW
,free
)(pw
);
440 res
= FN(PW
,alloc_size
)(isl_space_copy(pw
->dim
), pw
->type
, n
);
442 res
= FN(PW
,alloc_size
)(isl_space_copy(pw
->dim
), n
);
445 return FN(PW
,free
)(pw
);
446 for (i
= 0; i
< pw
->n
; ++i
)
447 res
= FN(PW
,add_piece
)(res
, isl_set_copy(pw
->p
[i
].set
),
448 FN(EL
,copy
)(pw
->p
[i
].FIELD
));
453 static __isl_give PW
*FN(PW
,add_disjoint_aligned
)(__isl_take PW
*pw1
,
462 if (pw1
->size
< pw1
->n
+ pw2
->n
&& pw1
->n
< pw2
->n
)
463 return FN(PW
,add_disjoint_aligned
)(pw2
, pw1
);
465 ctx
= isl_space_get_ctx(pw1
->dim
);
467 if (pw1
->type
!= pw2
->type
)
468 isl_die(ctx
, isl_error_invalid
,
469 "fold types don't match", goto error
);
471 isl_assert(ctx
, isl_space_is_equal(pw1
->dim
, pw2
->dim
), goto error
);
473 if (FN(PW
,IS_ZERO
)(pw1
)) {
478 if (FN(PW
,IS_ZERO
)(pw2
)) {
483 pw1
= FN(PW
,grow
)(pw1
, pw2
->n
);
487 for (i
= 0; i
< pw2
->n
; ++i
)
488 pw1
= FN(PW
,add_piece
)(pw1
,
489 isl_set_copy(pw2
->p
[i
].set
),
490 FN(EL
,copy
)(pw2
->p
[i
].FIELD
));
501 __isl_give PW
*FN(PW
,add_disjoint
)(__isl_take PW
*pw1
, __isl_take PW
*pw2
)
503 return FN(PW
,align_params_pw_pw_and
)(pw1
, pw2
,
504 &FN(PW
,add_disjoint_aligned
));
507 /* This function is currently only used from isl_aff.c
509 static __isl_give PW
*FN(PW
,on_shared_domain
)(__isl_take PW
*pw1
,
511 __isl_give EL
*(*fn
)(__isl_take EL
*el1
, __isl_take EL
*el2
))
512 __attribute__ ((unused
));
514 /* Apply "fn" to pairs of elements from pw1 and pw2 on shared domains.
516 static __isl_give PW
*FN(PW
,on_shared_domain
)(__isl_take PW
*pw1
,
518 __isl_give EL
*(*fn
)(__isl_take EL
*el1
, __isl_take EL
*el2
))
528 res
= FN(PW
,alloc_size
)(isl_space_copy(pw1
->dim
), pw1
->type
, n
);
530 res
= FN(PW
,alloc_size
)(isl_space_copy(pw1
->dim
), n
);
533 for (i
= 0; i
< pw1
->n
; ++i
) {
534 for (j
= 0; j
< pw2
->n
; ++j
) {
537 common
= isl_set_intersect(
538 isl_set_copy(pw1
->p
[i
].set
),
539 isl_set_copy(pw2
->p
[j
].set
));
540 if (isl_set_plain_is_empty(common
)) {
541 isl_set_free(common
);
545 res_ij
= fn(FN(EL
,copy
)(pw1
->p
[i
].FIELD
),
546 FN(EL
,copy
)(pw2
->p
[j
].FIELD
));
548 res
= FN(PW
,add_piece
)(res
, common
, res_ij
);
562 __isl_give PW
*FN(PW
,neg
)(__isl_take PW
*pw
)
569 if (FN(PW
,IS_ZERO
)(pw
))
576 for (i
= 0; i
< pw
->n
; ++i
) {
577 pw
->p
[i
].FIELD
= FN(EL
,neg
)(pw
->p
[i
].FIELD
);
579 return FN(PW
,free
)(pw
);
585 __isl_give PW
*FN(PW
,sub
)(__isl_take PW
*pw1
, __isl_take PW
*pw2
)
587 return FN(PW
,add
)(pw1
, FN(PW
,neg
)(pw2
));
592 __isl_give isl_qpolynomial
*FN(PW
,eval
)(__isl_take PW
*pw
,
593 __isl_take isl_point
*pnt
)
598 isl_space
*pnt_dim
= NULL
;
603 ctx
= isl_point_get_ctx(pnt
);
604 pnt_dim
= isl_point_get_space(pnt
);
605 isl_assert(ctx
, isl_space_is_domain(pnt_dim
, pw
->dim
), goto error
);
607 for (i
= 0; i
< pw
->n
; ++i
) {
608 found
= isl_set_contains_point(pw
->p
[i
].set
, pnt
);
615 qp
= FN(EL
,eval
)(FN(EL
,copy
)(pw
->p
[i
].FIELD
),
616 isl_point_copy(pnt
));
618 qp
= isl_qpolynomial_zero_on_domain(FN(PW
,get_domain_space
)(pw
));
620 isl_space_free(pnt_dim
);
625 isl_space_free(pnt_dim
);
631 __isl_give isl_set
*FN(PW
,domain
)(__isl_take PW
*pw
)
639 dom
= isl_set_empty(FN(PW
,get_domain_space
)(pw
));
640 for (i
= 0; i
< pw
->n
; ++i
)
641 dom
= isl_set_union_disjoint(dom
, isl_set_copy(pw
->p
[i
].set
));
648 static __isl_give PW
*FN(PW
,intersect_domain_aligned
)(__isl_take PW
*pw
,
649 __isl_take isl_set
*set
)
665 for (i
= pw
->n
- 1; i
>= 0; --i
) {
667 pw
->p
[i
].set
= isl_set_intersect(pw
->p
[i
].set
, isl_set_copy(set
));
670 aff
= isl_set_affine_hull(isl_set_copy(pw
->p
[i
].set
));
671 pw
->p
[i
].FIELD
= FN(EL
,substitute_equalities
)(pw
->p
[i
].FIELD
,
675 if (isl_set_plain_is_empty(pw
->p
[i
].set
)) {
676 isl_set_free(pw
->p
[i
].set
);
677 FN(EL
,free
)(pw
->p
[i
].FIELD
);
679 pw
->p
[i
] = pw
->p
[pw
->n
- 1];
692 __isl_give PW
*FN(PW
,intersect_domain
)(__isl_take PW
*pw
,
693 __isl_take isl_set
*context
)
695 return FN(PW
,align_params_pw_set_and
)(pw
, context
,
696 &FN(PW
,intersect_domain_aligned
));
699 static __isl_give PW
*FN(PW
,gist_aligned
)(__isl_take PW
*pw
,
700 __isl_take isl_set
*context
)
703 isl_basic_set
*hull
= NULL
;
709 isl_set_free(context
);
713 if (!isl_space_match(pw
->dim
, isl_dim_param
,
714 context
->dim
, isl_dim_param
)) {
715 pw
= FN(PW
,align_params
)(pw
, isl_set_get_space(context
));
716 context
= isl_set_align_params(context
, FN(PW
,get_space
)(pw
));
719 context
= isl_set_compute_divs(context
);
720 hull
= isl_set_simple_hull(isl_set_copy(context
));
726 for (i
= pw
->n
- 1; i
>= 0; --i
) {
727 pw
->p
[i
].set
= isl_set_intersect(pw
->p
[i
].set
,
728 isl_set_copy(context
));
731 pw
->p
[i
].FIELD
= FN(EL
,gist
)(pw
->p
[i
].FIELD
,
732 isl_set_copy(pw
->p
[i
].set
));
733 pw
->p
[i
].set
= isl_set_gist_basic_set(pw
->p
[i
].set
,
734 isl_basic_set_copy(hull
));
737 if (isl_set_plain_is_empty(pw
->p
[i
].set
)) {
738 isl_set_free(pw
->p
[i
].set
);
739 FN(EL
,free
)(pw
->p
[i
].FIELD
);
741 pw
->p
[i
] = pw
->p
[pw
->n
- 1];
746 isl_basic_set_free(hull
);
747 isl_set_free(context
);
752 isl_basic_set_free(hull
);
753 isl_set_free(context
);
757 __isl_give PW
*FN(PW
,gist
)(__isl_take PW
*pw
, __isl_take isl_set
*context
)
759 return FN(PW
,align_params_pw_set_and
)(pw
, context
, &FN(PW
,gist_aligned
));
762 __isl_give PW
*FN(PW
,coalesce
)(__isl_take PW
*pw
)
771 for (i
= pw
->n
- 1; i
>= 0; --i
) {
772 for (j
= i
- 1; j
>= 0; --j
) {
773 if (!FN(EL
,plain_is_equal
)(pw
->p
[i
].FIELD
,
776 pw
->p
[j
].set
= isl_set_union(pw
->p
[j
].set
,
778 FN(EL
,free
)(pw
->p
[i
].FIELD
);
780 pw
->p
[i
] = pw
->p
[pw
->n
- 1];
786 pw
->p
[i
].set
= isl_set_coalesce(pw
->p
[i
].set
);
797 isl_ctx
*FN(PW
,get_ctx
)(__isl_keep PW
*pw
)
799 return pw
? isl_space_get_ctx(pw
->dim
) : NULL
;
802 #ifndef NO_INVOLVES_DIMS
803 int FN(PW
,involves_dims
)(__isl_keep PW
*pw
, enum isl_dim_type type
,
804 unsigned first
, unsigned n
)
807 enum isl_dim_type set_type
;
811 if (pw
->n
== 0 || n
== 0)
814 set_type
= type
== isl_dim_in
? isl_dim_set
: type
;
816 for (i
= 0; i
< pw
->n
; ++i
) {
817 int involves
= FN(EL
,involves_dims
)(pw
->p
[i
].FIELD
,
819 if (involves
< 0 || involves
)
821 involves
= isl_set_involves_dims(pw
->p
[i
].set
,
823 if (involves
< 0 || involves
)
830 __isl_give PW
*FN(PW
,set_dim_name
)(__isl_take PW
*pw
,
831 enum isl_dim_type type
, unsigned pos
, const char *s
)
834 enum isl_dim_type set_type
;
840 set_type
= type
== isl_dim_in
? isl_dim_set
: type
;
842 pw
->dim
= isl_space_set_dim_name(pw
->dim
, type
, pos
, s
);
846 for (i
= 0; i
< pw
->n
; ++i
) {
847 pw
->p
[i
].set
= isl_set_set_dim_name(pw
->p
[i
].set
,
851 pw
->p
[i
].FIELD
= FN(EL
,set_dim_name
)(pw
->p
[i
].FIELD
, type
, pos
, s
);
863 __isl_give PW
*FN(PW
,drop_dims
)(__isl_take PW
*pw
,
864 enum isl_dim_type type
, unsigned first
, unsigned n
)
867 enum isl_dim_type set_type
;
871 if (n
== 0 && !isl_space_get_tuple_name(pw
->dim
, type
))
874 set_type
= type
== isl_dim_in
? isl_dim_set
: type
;
879 pw
->dim
= isl_space_drop_dims(pw
->dim
, type
, first
, n
);
882 for (i
= 0; i
< pw
->n
; ++i
) {
883 pw
->p
[i
].set
= isl_set_drop(pw
->p
[i
].set
, set_type
, first
, n
);
886 pw
->p
[i
].FIELD
= FN(EL
,drop_dims
)(pw
->p
[i
].FIELD
, type
, first
, n
);
897 /* This function is very similar to drop_dims.
898 * The only difference is that the cells may still involve
899 * the specified dimensions. They are removed using
900 * isl_set_project_out instead of isl_set_drop.
902 __isl_give PW
*FN(PW
,project_out
)(__isl_take PW
*pw
,
903 enum isl_dim_type type
, unsigned first
, unsigned n
)
906 enum isl_dim_type set_type
;
910 if (n
== 0 && !isl_space_get_tuple_name(pw
->dim
, type
))
913 set_type
= type
== isl_dim_in
? isl_dim_set
: type
;
918 pw
->dim
= isl_space_drop_dims(pw
->dim
, type
, first
, n
);
921 for (i
= 0; i
< pw
->n
; ++i
) {
922 pw
->p
[i
].set
= isl_set_project_out(pw
->p
[i
].set
,
926 pw
->p
[i
].FIELD
= FN(EL
,drop_dims
)(pw
->p
[i
].FIELD
, type
, first
, n
);
937 /* Project the domain of pw onto its parameter space.
939 __isl_give PW
*FN(PW
,project_domain_on_params
)(__isl_take PW
*pw
)
944 n
= FN(PW
,dim
)(pw
, isl_dim_in
);
945 pw
= FN(PW
,project_out
)(pw
, isl_dim_in
, 0, n
);
946 space
= FN(PW
,get_domain_space
)(pw
);
947 space
= isl_space_params(space
);
948 pw
= FN(PW
,reset_domain_space
)(pw
, space
);
953 #ifndef NO_INSERT_DIMS
954 __isl_give PW
*FN(PW
,insert_dims
)(__isl_take PW
*pw
, enum isl_dim_type type
,
955 unsigned first
, unsigned n
)
958 enum isl_dim_type set_type
;
962 if (n
== 0 && !isl_space_is_named_or_nested(pw
->dim
, type
))
965 set_type
= type
== isl_dim_in
? isl_dim_set
: type
;
971 pw
->dim
= isl_space_insert_dims(pw
->dim
, type
, first
, n
);
975 for (i
= 0; i
< pw
->n
; ++i
) {
976 pw
->p
[i
].set
= isl_set_insert_dims(pw
->p
[i
].set
,
980 pw
->p
[i
].FIELD
= FN(EL
,insert_dims
)(pw
->p
[i
].FIELD
,
993 __isl_give PW
*FN(PW
,fix_dim
)(__isl_take PW
*pw
,
994 enum isl_dim_type type
, unsigned pos
, isl_int v
)
1001 if (type
== isl_dim_in
)
1004 pw
= FN(PW
,cow
)(pw
);
1007 for (i
= 0; i
< pw
->n
; ++i
) {
1008 pw
->p
[i
].set
= isl_set_fix(pw
->p
[i
].set
, type
, pos
, v
);
1019 unsigned FN(PW
,dim
)(__isl_keep PW
*pw
, enum isl_dim_type type
)
1021 return pw
? isl_space_dim(pw
->dim
, type
) : 0;
1024 __isl_give PW
*FN(PW
,split_dims
)(__isl_take PW
*pw
,
1025 enum isl_dim_type type
, unsigned first
, unsigned n
)
1034 if (type
== isl_dim_in
)
1037 pw
= FN(PW
,cow
)(pw
);
1042 for (i
= 0; i
< pw
->n
; ++i
) {
1043 pw
->p
[i
].set
= isl_set_split_dims(pw
->p
[i
].set
, type
, first
, n
);
1055 /* Compute the maximal value attained by the piecewise quasipolynomial
1056 * on its domain or zero if the domain is empty.
1057 * In the worst case, the domain is scanned completely,
1058 * so the domain is assumed to be bounded.
1060 __isl_give isl_qpolynomial
*FN(PW
,opt
)(__isl_take PW
*pw
, int max
)
1063 isl_qpolynomial
*opt
;
1069 isl_space
*dim
= isl_space_copy(pw
->dim
);
1071 return isl_qpolynomial_zero_on_domain(dim
);
1074 opt
= FN(EL
,opt_on_domain
)(FN(EL
,copy
)(pw
->p
[0].FIELD
),
1075 isl_set_copy(pw
->p
[0].set
), max
);
1076 for (i
= 1; i
< pw
->n
; ++i
) {
1077 isl_qpolynomial
*opt_i
;
1078 opt_i
= FN(EL
,opt_on_domain
)(FN(EL
,copy
)(pw
->p
[i
].FIELD
),
1079 isl_set_copy(pw
->p
[i
].set
), max
);
1081 opt
= isl_qpolynomial_max_cst(opt
, opt_i
);
1083 opt
= isl_qpolynomial_min_cst(opt
, opt_i
);
1090 __isl_give isl_qpolynomial
*FN(PW
,max
)(__isl_take PW
*pw
)
1092 return FN(PW
,opt
)(pw
, 1);
1095 __isl_give isl_qpolynomial
*FN(PW
,min
)(__isl_take PW
*pw
)
1097 return FN(PW
,opt
)(pw
, 0);
1101 __isl_give isl_space
*FN(PW
,get_space
)(__isl_keep PW
*pw
)
1103 return pw
? isl_space_copy(pw
->dim
) : NULL
;
1106 __isl_give isl_space
*FN(PW
,get_domain_space
)(__isl_keep PW
*pw
)
1108 return pw
? isl_space_domain(isl_space_copy(pw
->dim
)) : NULL
;
1111 #ifndef NO_RESET_DIM
1112 /* Reset the space of "pw". Since we don't know if the elements
1113 * represent the spaces themselves or their domains, we pass along
1114 * both when we call their reset_space_and_domain.
1116 static __isl_give PW
*FN(PW
,reset_space_and_domain
)(__isl_take PW
*pw
,
1117 __isl_take isl_space
*space
, __isl_take isl_space
*domain
)
1121 pw
= FN(PW
,cow
)(pw
);
1122 if (!pw
|| !space
|| !domain
)
1125 for (i
= 0; i
< pw
->n
; ++i
) {
1126 pw
->p
[i
].set
= isl_set_reset_space(pw
->p
[i
].set
,
1127 isl_space_copy(domain
));
1130 pw
->p
[i
].FIELD
= FN(EL
,reset_space_and_domain
)(pw
->p
[i
].FIELD
,
1131 isl_space_copy(space
), isl_space_copy(domain
));
1132 if (!pw
->p
[i
].FIELD
)
1136 isl_space_free(domain
);
1138 isl_space_free(pw
->dim
);
1143 isl_space_free(domain
);
1144 isl_space_free(space
);
1149 __isl_give PW
*FN(PW
,reset_domain_space
)(__isl_take PW
*pw
,
1150 __isl_take isl_space
*domain
)
1154 space
= isl_space_extend_domain_with_range(isl_space_copy(domain
),
1155 FN(PW
,get_space
)(pw
));
1156 return FN(PW
,reset_space_and_domain
)(pw
, space
, domain
);
1159 __isl_give PW
*FN(PW
,reset_space
)(__isl_take PW
*pw
, __isl_take isl_space
*dim
)
1163 domain
= isl_space_domain(isl_space_copy(dim
));
1164 return FN(PW
,reset_space_and_domain
)(pw
, dim
, domain
);
1167 __isl_give PW
*FN(PW
,set_tuple_id
)(__isl_keep PW
*pw
, enum isl_dim_type type
,
1168 __isl_take isl_id
*id
)
1172 pw
= FN(PW
,cow
)(pw
);
1174 return isl_id_free(id
);
1176 space
= FN(PW
,get_space
)(pw
);
1177 space
= isl_space_set_tuple_id(space
, type
, id
);
1179 return FN(PW
,reset_space
)(pw
, space
);
1182 __isl_give PW
*FN(PW
,set_dim_id
)(__isl_take PW
*pw
,
1183 enum isl_dim_type type
, unsigned pos
, __isl_take isl_id
*id
)
1185 pw
= FN(PW
,cow
)(pw
);
1187 return isl_id_free(id
);
1188 pw
->dim
= isl_space_set_dim_id(pw
->dim
, type
, pos
, id
);
1189 return FN(PW
,reset_space
)(pw
, isl_space_copy(pw
->dim
));
1193 int FN(PW
,has_equal_space
)(__isl_keep PW
*pw1
, __isl_keep PW
*pw2
)
1198 return isl_space_is_equal(pw1
->dim
, pw2
->dim
);
1202 __isl_give PW
*FN(PW
,morph_domain
)(__isl_take PW
*pw
,
1203 __isl_take isl_morph
*morph
)
1211 ctx
= isl_space_get_ctx(pw
->dim
);
1212 isl_assert(ctx
, isl_space_is_domain(morph
->dom
->dim
, pw
->dim
),
1215 pw
= FN(PW
,cow
)(pw
);
1218 pw
->dim
= isl_space_extend_domain_with_range(
1219 isl_space_copy(morph
->ran
->dim
), pw
->dim
);
1223 for (i
= 0; i
< pw
->n
; ++i
) {
1224 pw
->p
[i
].set
= isl_morph_set(isl_morph_copy(morph
), pw
->p
[i
].set
);
1227 pw
->p
[i
].FIELD
= FN(EL
,morph_domain
)(pw
->p
[i
].FIELD
,
1228 isl_morph_copy(morph
));
1229 if (!pw
->p
[i
].FIELD
)
1233 isl_morph_free(morph
);
1238 isl_morph_free(morph
);
1243 int FN(PW
,foreach_piece
)(__isl_keep PW
*pw
,
1244 int (*fn
)(__isl_take isl_set
*set
, __isl_take EL
*el
, void *user
),
1252 for (i
= 0; i
< pw
->n
; ++i
)
1253 if (fn(isl_set_copy(pw
->p
[i
].set
),
1254 FN(EL
,copy
)(pw
->p
[i
].FIELD
), user
) < 0)
1261 static int any_divs(__isl_keep isl_set
*set
)
1268 for (i
= 0; i
< set
->n
; ++i
)
1269 if (set
->p
[i
]->n_div
> 0)
1275 static int foreach_lifted_subset(__isl_take isl_set
*set
, __isl_take EL
*el
,
1276 int (*fn
)(__isl_take isl_set
*set
, __isl_take EL
*el
,
1277 void *user
), void *user
)
1284 for (i
= 0; i
< set
->n
; ++i
) {
1288 lift
= isl_set_from_basic_set(isl_basic_set_copy(set
->p
[i
]));
1289 lift
= isl_set_lift(lift
);
1291 copy
= FN(EL
,copy
)(el
);
1292 copy
= FN(EL
,lift
)(copy
, isl_set_get_space(lift
));
1294 if (fn(lift
, copy
, user
) < 0)
1308 int FN(PW
,foreach_lifted_piece
)(__isl_keep PW
*pw
,
1309 int (*fn
)(__isl_take isl_set
*set
, __isl_take EL
*el
,
1310 void *user
), void *user
)
1317 for (i
= 0; i
< pw
->n
; ++i
) {
1321 set
= isl_set_copy(pw
->p
[i
].set
);
1322 el
= FN(EL
,copy
)(pw
->p
[i
].FIELD
);
1323 if (!any_divs(set
)) {
1324 if (fn(set
, el
, user
) < 0)
1328 if (foreach_lifted_subset(set
, el
, fn
, user
) < 0)
1336 #ifndef NO_MOVE_DIMS
1337 __isl_give PW
*FN(PW
,move_dims
)(__isl_take PW
*pw
,
1338 enum isl_dim_type dst_type
, unsigned dst_pos
,
1339 enum isl_dim_type src_type
, unsigned src_pos
, unsigned n
)
1343 pw
= FN(PW
,cow
)(pw
);
1347 pw
->dim
= isl_space_move_dims(pw
->dim
, dst_type
, dst_pos
, src_type
, src_pos
, n
);
1351 for (i
= 0; i
< pw
->n
; ++i
) {
1352 pw
->p
[i
].FIELD
= FN(EL
,move_dims
)(pw
->p
[i
].FIELD
,
1353 dst_type
, dst_pos
, src_type
, src_pos
, n
);
1354 if (!pw
->p
[i
].FIELD
)
1358 if (dst_type
== isl_dim_in
)
1359 dst_type
= isl_dim_set
;
1360 if (src_type
== isl_dim_in
)
1361 src_type
= isl_dim_set
;
1363 for (i
= 0; i
< pw
->n
; ++i
) {
1364 pw
->p
[i
].set
= isl_set_move_dims(pw
->p
[i
].set
,
1366 src_type
, src_pos
, n
);
1378 __isl_give PW
*FN(PW
,mul_isl_int
)(__isl_take PW
*pw
, isl_int v
)
1382 if (isl_int_is_one(v
))
1384 if (pw
&& isl_int_is_zero(v
)) {
1386 isl_space
*dim
= FN(PW
,get_space
)(pw
);
1388 zero
= FN(PW
,ZERO
)(dim
, pw
->type
);
1390 zero
= FN(PW
,ZERO
)(dim
);
1395 pw
= FN(PW
,cow
)(pw
);
1402 if (isl_int_is_neg(v
))
1403 pw
->type
= isl_fold_type_negate(pw
->type
);
1405 for (i
= 0; i
< pw
->n
; ++i
) {
1406 pw
->p
[i
].FIELD
= FN(EL
,scale
)(pw
->p
[i
].FIELD
, v
);
1407 if (!pw
->p
[i
].FIELD
)
1417 __isl_give PW
*FN(PW
,scale
)(__isl_take PW
*pw
, isl_int v
)
1419 return FN(PW
,mul_isl_int
)(pw
, v
);
1422 static int FN(PW
,qsort_set_cmp
)(const void *p1
, const void *p2
)
1424 const isl_set
*set1
= *(const isl_set
**)p1
;
1425 const isl_set
*set2
= *(const isl_set
**)p2
;
1427 return isl_set_plain_cmp(set1
, set2
);
1430 /* We normalize in place, but if anything goes wrong we need
1431 * to return NULL, so we need to make sure we don't change the
1432 * meaning of any possible other copies of map.
1434 __isl_give PW
*FN(PW
,normalize
)(__isl_take PW
*pw
)
1441 for (i
= 0; i
< pw
->n
; ++i
) {
1442 set
= isl_set_normalize(isl_set_copy(pw
->p
[i
].set
));
1444 return FN(PW
,free
)(pw
);
1445 isl_set_free(pw
->p
[i
].set
);
1448 qsort(pw
->p
, pw
->n
, sizeof(pw
->p
[0]), &FN(PW
,qsort_set_cmp
));
1449 for (i
= pw
->n
- 1; i
>= 1; --i
) {
1450 if (!isl_set_plain_is_equal(pw
->p
[i
- 1].set
, pw
->p
[i
].set
))
1452 if (!FN(EL
,plain_is_equal
)(pw
->p
[i
- 1].FIELD
, pw
->p
[i
].FIELD
))
1454 set
= isl_set_union(isl_set_copy(pw
->p
[i
- 1].set
),
1455 isl_set_copy(pw
->p
[i
].set
));
1457 return FN(PW
,free
)(pw
);
1458 isl_set_free(pw
->p
[i
].set
);
1459 FN(EL
,free
)(pw
->p
[i
].FIELD
);
1460 isl_set_free(pw
->p
[i
- 1].set
);
1461 pw
->p
[i
- 1].set
= set
;
1462 for (j
= i
+ 1; j
< pw
->n
; ++j
)
1463 pw
->p
[j
- 1] = pw
->p
[j
];
1470 /* Is pw1 obviously equal to pw2?
1471 * That is, do they have obviously identical cells and obviously identical
1472 * elements on each cell?
1474 int FN(PW
,plain_is_equal
)(__isl_keep PW
*pw1
, __isl_keep PW
*pw2
)
1484 if (!isl_space_is_equal(pw1
->dim
, pw2
->dim
))
1487 pw1
= FN(PW
,copy
)(pw1
);
1488 pw2
= FN(PW
,copy
)(pw2
);
1489 pw1
= FN(PW
,normalize
)(pw1
);
1490 pw2
= FN(PW
,normalize
)(pw2
);
1494 equal
= pw1
->n
== pw2
->n
;
1495 for (i
= 0; equal
&& i
< pw1
->n
; ++i
) {
1496 equal
= isl_set_plain_is_equal(pw1
->p
[i
].set
, pw2
->p
[i
].set
);
1501 equal
= FN(EL
,plain_is_equal
)(pw1
->p
[i
].FIELD
, pw2
->p
[i
].FIELD
);