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
14 #include <isl_dim_private.h>
17 isl_ctx *isl_dim_get_ctx(__isl_keep isl_dim *dim)
19 return dim ? dim->ctx : NULL;
22 struct isl_dim *isl_dim_alloc(struct isl_ctx *ctx,
23 unsigned nparam, unsigned n_in, unsigned n_out)
27 dim = isl_alloc_type(ctx, struct isl_dim);
38 dim->tuple_name[0] = NULL;
39 dim->tuple_name[1] = NULL;
41 dim->nested[0] = NULL;
42 dim->nested[1] = NULL;
50 struct isl_dim *isl_dim_set_alloc(struct isl_ctx *ctx,
51 unsigned nparam, unsigned dim)
53 return isl_dim_alloc(ctx, nparam, 0, dim);
56 static unsigned global_pos(struct isl_dim *dim,
57 enum isl_dim_type type, unsigned pos)
59 struct isl_ctx *ctx = dim->ctx;
63 isl_assert(ctx, pos < dim->nparam, return isl_dim_total(dim));
66 isl_assert(ctx, pos < dim->n_in, return isl_dim_total(dim));
67 return pos + dim->nparam;
69 isl_assert(ctx, pos < dim->n_out, return isl_dim_total(dim));
70 return pos + dim->nparam + dim->n_in;
72 isl_assert(ctx, 0, return isl_dim_total(dim));
74 return isl_dim_total(dim);
77 /* Extend length of names array to the total number of dimensions.
79 static __isl_give isl_dim *extend_names(__isl_take isl_dim *dim)
81 struct isl_name **names;
84 if (isl_dim_total(dim) <= dim->n_name)
88 dim->names = isl_calloc_array(dim->ctx,
89 struct isl_name *, isl_dim_total(dim));
93 names = isl_realloc_array(dim->ctx, dim->names,
94 struct isl_name *, isl_dim_total(dim));
98 for (i = dim->n_name; i < isl_dim_total(dim); ++i)
102 dim->n_name = isl_dim_total(dim);
110 static struct isl_dim *set_name(struct isl_dim *dim,
111 enum isl_dim_type type, unsigned pos,
112 struct isl_name *name)
114 struct isl_ctx *ctx = dim->ctx;
115 dim = isl_dim_cow(dim);
120 pos = global_pos(dim, type, pos);
121 if (pos == isl_dim_total(dim))
124 if (pos >= dim->n_name) {
127 dim = extend_names(dim);
132 dim->names[pos] = name;
136 isl_name_free(ctx, name);
141 static struct isl_name *get_name(struct isl_dim *dim,
142 enum isl_dim_type type, unsigned pos)
147 pos = global_pos(dim, type, pos);
148 if (pos == isl_dim_total(dim))
150 if (pos >= dim->n_name)
152 return dim->names[pos];
155 static unsigned offset(struct isl_dim *dim, enum isl_dim_type type)
158 case isl_dim_param: return 0;
159 case isl_dim_in: return dim->nparam;
160 case isl_dim_out: return dim->nparam + dim->n_in;
165 static unsigned n(struct isl_dim *dim, enum isl_dim_type type)
168 case isl_dim_param: return dim->nparam;
169 case isl_dim_in: return dim->n_in;
170 case isl_dim_out: return dim->n_out;
171 case isl_dim_all: return dim->nparam + dim->n_in + dim->n_out;
176 unsigned isl_dim_size(struct isl_dim *dim, enum isl_dim_type type)
183 unsigned isl_dim_offset(__isl_keep isl_dim *dim, enum isl_dim_type type)
187 return offset(dim, type);
190 static struct isl_dim *copy_names(struct isl_dim *dst,
191 enum isl_dim_type dst_type, unsigned offset, struct isl_dim *src,
192 enum isl_dim_type src_type)
195 struct isl_name *name;
200 for (i = 0; i < n(src, src_type); ++i) {
201 name = get_name(src, src_type, i);
204 dst = set_name(dst, dst_type, offset + i,
205 isl_name_copy(dst->ctx, name));
212 struct isl_dim *isl_dim_dup(struct isl_dim *dim)
217 dup = isl_dim_alloc(dim->ctx, dim->nparam, dim->n_in, dim->n_out);
218 if (dim->tuple_name[0] &&
219 !(dup->tuple_name[0] = isl_name_copy(dim->ctx, dim->tuple_name[0])))
221 if (dim->tuple_name[1] &&
222 !(dup->tuple_name[1] = isl_name_copy(dim->ctx, dim->tuple_name[1])))
224 if (dim->nested[0] && !(dup->nested[0] = isl_dim_copy(dim->nested[0])))
226 if (dim->nested[1] && !(dup->nested[1] = isl_dim_copy(dim->nested[1])))
230 dup = copy_names(dup, isl_dim_param, 0, dim, isl_dim_param);
231 dup = copy_names(dup, isl_dim_in, 0, dim, isl_dim_in);
232 dup = copy_names(dup, isl_dim_out, 0, dim, isl_dim_out);
239 struct isl_dim *isl_dim_cow(struct isl_dim *dim)
247 return isl_dim_dup(dim);
250 struct isl_dim *isl_dim_copy(struct isl_dim *dim)
259 void isl_dim_free(struct isl_dim *dim)
269 isl_name_free(dim->ctx, dim->tuple_name[0]);
270 isl_name_free(dim->ctx, dim->tuple_name[1]);
272 isl_dim_free(dim->nested[0]);
273 isl_dim_free(dim->nested[1]);
275 for (i = 0; i < dim->n_name; ++i)
276 isl_name_free(dim->ctx, dim->names[i]);
278 isl_ctx_deref(dim->ctx);
283 static int name_ok(isl_ctx *ctx, const char *s)
288 dummy = strtol(s, &p, 0);
290 isl_die(ctx, isl_error_invalid, "name looks like a number",
296 __isl_give isl_dim *isl_dim_set_tuple_name(__isl_take isl_dim *dim,
297 enum isl_dim_type type, const char *s)
299 struct isl_name *name;
301 dim = isl_dim_cow(dim);
304 if (type != isl_dim_in && type != isl_dim_out)
305 isl_die(dim->ctx, isl_error_invalid,
306 "only input, output and set tuples can have names",
311 if (!name_ok(dim->ctx, s))
313 name = isl_name_get(dim->ctx, s);
318 isl_name_free(dim->ctx, dim->tuple_name[type - isl_dim_in]);
319 dim->tuple_name[type - isl_dim_in] = name;
327 const char *isl_dim_get_tuple_name(__isl_keep isl_dim *dim,
328 enum isl_dim_type type)
330 struct isl_name *name;
333 if (type != isl_dim_in && type != isl_dim_out)
335 name = dim->tuple_name[type - isl_dim_in];
336 return name ? name->name : NULL;
339 struct isl_dim *isl_dim_set_name(struct isl_dim *dim,
340 enum isl_dim_type type, unsigned pos,
343 struct isl_name *name;
347 if (!name_ok(dim->ctx, s))
349 isl_name_free(dim->ctx, get_name(dim, type, pos));
350 name = isl_name_get(dim->ctx, s);
353 return set_name(dim, type, pos, name);
359 const char *isl_dim_get_name(struct isl_dim *dim,
360 enum isl_dim_type type, unsigned pos)
362 struct isl_name *name = get_name(dim, type, pos);
363 return name ? name->name : NULL;
366 static struct isl_name *tuple_name(__isl_keep isl_dim *dim,
367 enum isl_dim_type type)
371 if (type == isl_dim_in)
372 return dim->tuple_name[0];
373 if (type == isl_dim_out)
374 return dim->tuple_name[1];
378 static __isl_keep isl_dim *nested(__isl_keep isl_dim *dim,
379 enum isl_dim_type type)
383 if (type == isl_dim_in)
384 return dim->nested[0];
385 if (type == isl_dim_out)
386 return dim->nested[1];
390 int isl_dim_tuple_match(__isl_keep isl_dim *dim1, enum isl_dim_type dim1_type,
391 __isl_keep isl_dim *dim2, enum isl_dim_type dim2_type)
393 struct isl_name *name1, *name2;
394 isl_dim *nested1, *nested2;
396 if (n(dim1, dim1_type) != n(dim2, dim2_type))
398 name1 = tuple_name(dim1, dim1_type);
399 name2 = tuple_name(dim2, dim2_type);
402 if (name1 && name1->name != name2->name)
404 nested1 = nested(dim1, dim1_type);
405 nested2 = nested(dim2, dim2_type);
406 if (!nested1 ^ !nested2)
408 if (nested1 && !isl_dim_equal(nested1, nested2))
413 static int match(struct isl_dim *dim1, enum isl_dim_type dim1_type,
414 struct isl_dim *dim2, enum isl_dim_type dim2_type)
418 if (!isl_dim_tuple_match(dim1, dim1_type, dim2, dim2_type))
421 if (!dim1->names && !dim2->names)
424 for (i = 0; i < n(dim1, dim1_type); ++i) {
425 if (get_name(dim1, dim1_type, i) !=
426 get_name(dim2, dim2_type, i))
432 int isl_dim_match(struct isl_dim *dim1, enum isl_dim_type dim1_type,
433 struct isl_dim *dim2, enum isl_dim_type dim2_type)
435 return match(dim1, dim1_type, dim2, dim2_type);
438 static void get_names(struct isl_dim *dim, enum isl_dim_type type,
439 unsigned first, unsigned n, struct isl_name **names)
443 for (i = 0; i < n ; ++i)
444 names[i] = get_name(dim, type, first+i);
447 struct isl_dim *isl_dim_extend(struct isl_dim *dim,
448 unsigned nparam, unsigned n_in, unsigned n_out)
450 struct isl_name **names = NULL;
454 if (dim->nparam == nparam && dim->n_in == n_in && dim->n_out == n_out)
457 isl_assert(dim->ctx, dim->nparam <= nparam, goto error);
458 isl_assert(dim->ctx, dim->n_in <= n_in, goto error);
459 isl_assert(dim->ctx, dim->n_out <= n_out, goto error);
461 dim = isl_dim_cow(dim);
464 names = isl_calloc_array(dim->ctx, struct isl_name *,
465 nparam + n_in + n_out);
468 get_names(dim, isl_dim_param, 0, dim->nparam, names);
469 get_names(dim, isl_dim_in, 0, dim->n_in, names + nparam);
470 get_names(dim, isl_dim_out, 0, dim->n_out,
471 names + nparam + n_in);
474 dim->n_name = nparam + n_in + n_out;
476 dim->nparam = nparam;
487 struct isl_dim *isl_dim_add(struct isl_dim *dim, enum isl_dim_type type,
492 dim = isl_dim_reset(dim, type);
495 dim = isl_dim_extend(dim,
496 dim->nparam + n, dim->n_in, dim->n_out);
497 if (dim && dim->nested[0] &&
498 !(dim->nested[0] = isl_dim_add(dim->nested[0],
501 if (dim && dim->nested[1] &&
502 !(dim->nested[1] = isl_dim_add(dim->nested[1],
507 return isl_dim_extend(dim,
508 dim->nparam, dim->n_in + n, dim->n_out);
510 return isl_dim_extend(dim,
511 dim->nparam, dim->n_in, dim->n_out + n);
513 isl_die(dim->ctx, isl_error_invalid,
514 "cannot add dimensions of specified type", goto error);
521 static int valid_dim_type(enum isl_dim_type type)
533 __isl_give isl_dim *isl_dim_insert(__isl_take isl_dim *dim,
534 enum isl_dim_type type, unsigned pos, unsigned n)
536 struct isl_name **names = NULL;
541 return isl_dim_reset(dim, type);
543 if (!valid_dim_type(type))
544 isl_die(dim->ctx, isl_error_invalid,
545 "cannot insert dimensions of specified type",
548 isl_assert(dim->ctx, pos <= isl_dim_size(dim, type), goto error);
550 dim = isl_dim_cow(dim);
558 int *size = s - isl_dim_param;
559 names = isl_calloc_array(dim->ctx, struct isl_name *,
560 dim->nparam + dim->n_in + dim->n_out + n);
564 size[isl_dim_param] = dim->nparam;
565 size[isl_dim_in] = dim->n_in;
566 size[isl_dim_out] = dim->n_out;
567 for (t = isl_dim_param; t <= isl_dim_out; ++t) {
569 get_names(dim, t, 0, size[t], names + off);
572 get_names(dim, t, 0, pos, names + off);
574 get_names(dim, t, pos, size[t]-pos, names+off);
575 off += size[t] - pos;
580 dim->n_name = dim->nparam + dim->n_in + dim->n_out + n;
583 case isl_dim_param: dim->nparam += n; break;
584 case isl_dim_in: dim->n_in += n; break;
585 case isl_dim_out: dim->n_out += n; break;
588 dim = isl_dim_reset(dim, type);
596 __isl_give isl_dim *isl_dim_move(__isl_take isl_dim *dim,
597 enum isl_dim_type dst_type, unsigned dst_pos,
598 enum isl_dim_type src_type, unsigned src_pos, unsigned n)
607 isl_assert(dim->ctx, src_pos + n <= isl_dim_size(dim, src_type),
610 if (dst_type == src_type && dst_pos == src_pos)
613 isl_assert(dim->ctx, dst_type != src_type, goto error);
615 dim = isl_dim_reset(dim, src_type);
616 dim = isl_dim_reset(dim, dst_type);
618 dim = isl_dim_cow(dim);
623 struct isl_name **names;
627 int *size = s - isl_dim_param;
628 names = isl_calloc_array(dim->ctx, struct isl_name *,
629 dim->nparam + dim->n_in + dim->n_out);
633 size[isl_dim_param] = dim->nparam;
634 size[isl_dim_in] = dim->n_in;
635 size[isl_dim_out] = dim->n_out;
636 for (t = isl_dim_param; t <= isl_dim_out; ++t) {
638 get_names(dim, t, 0, dst_pos, names + off);
640 get_names(dim, src_type, src_pos, n, names+off);
642 get_names(dim, t, dst_pos, size[t] - dst_pos,
644 off += size[t] - dst_pos;
645 } else if (t == src_type) {
646 get_names(dim, t, 0, src_pos, names + off);
648 get_names(dim, t, src_pos + n,
649 size[t] - src_pos - n, names + off);
650 off += size[t] - src_pos - n;
652 get_names(dim, t, 0, size[t], names + off);
658 dim->n_name = dim->nparam + dim->n_in + dim->n_out;
662 case isl_dim_param: dim->nparam += n; break;
663 case isl_dim_in: dim->n_in += n; break;
664 case isl_dim_out: dim->n_out += n; break;
669 case isl_dim_param: dim->nparam -= n; break;
670 case isl_dim_in: dim->n_in -= n; break;
671 case isl_dim_out: dim->n_out -= n; break;
675 if (dst_type != isl_dim_param && src_type != isl_dim_param)
678 for (i = 0; i < 2; ++i) {
681 dim->nested[i] = isl_dim_replace(dim->nested[i],
693 struct isl_dim *isl_dim_join(struct isl_dim *left, struct isl_dim *right)
700 isl_assert(left->ctx, match(left, isl_dim_param, right, isl_dim_param),
702 isl_assert(left->ctx,
703 isl_dim_tuple_match(left, isl_dim_out, right, isl_dim_in),
706 dim = isl_dim_alloc(left->ctx, left->nparam, left->n_in, right->n_out);
710 dim = copy_names(dim, isl_dim_param, 0, left, isl_dim_param);
711 dim = copy_names(dim, isl_dim_in, 0, left, isl_dim_in);
712 dim = copy_names(dim, isl_dim_out, 0, right, isl_dim_out);
714 if (dim && left->tuple_name[0] &&
715 !(dim->tuple_name[0] = isl_name_copy(dim->ctx, left->tuple_name[0])))
717 if (dim && right->tuple_name[1] &&
718 !(dim->tuple_name[1] = isl_name_copy(dim->ctx, right->tuple_name[1])))
720 if (dim && left->nested[0] &&
721 !(dim->nested[0] = isl_dim_copy(left->nested[0])))
723 if (dim && right->nested[1] &&
724 !(dim->nested[1] = isl_dim_copy(right->nested[1])))
737 struct isl_dim *isl_dim_product(struct isl_dim *left, struct isl_dim *right)
739 isl_dim *dom1, *dom2, *nest1, *nest2;
744 isl_assert(left->ctx, match(left, isl_dim_param, right, isl_dim_param),
747 dom1 = isl_dim_domain(isl_dim_copy(left));
748 dom2 = isl_dim_domain(isl_dim_copy(right));
749 nest1 = isl_dim_wrap(isl_dim_join(isl_dim_reverse(dom1), dom2));
751 dom1 = isl_dim_range(left);
752 dom2 = isl_dim_range(right);
753 nest2 = isl_dim_wrap(isl_dim_join(isl_dim_reverse(dom1), dom2));
755 return isl_dim_join(isl_dim_reverse(nest1), nest2);
762 __isl_give isl_dim *isl_dim_range_product(__isl_take isl_dim *left,
763 __isl_take isl_dim *right)
765 isl_dim *dom, *ran1, *ran2, *nest;
770 isl_assert(left->ctx, match(left, isl_dim_param, right, isl_dim_param),
772 if (!isl_dim_match(left, isl_dim_in, right, isl_dim_in))
773 isl_die(left->ctx, isl_error_invalid,
774 "domains need to match", goto error);
776 dom = isl_dim_domain(isl_dim_copy(left));
778 ran1 = isl_dim_range(left);
779 ran2 = isl_dim_range(right);
780 nest = isl_dim_wrap(isl_dim_join(isl_dim_reverse(ran1), ran2));
782 return isl_dim_join(isl_dim_reverse(dom), nest);
789 __isl_give isl_dim *isl_dim_map_from_set(__isl_take isl_dim *dim)
791 struct isl_name **names = NULL;
795 isl_assert(dim->ctx, dim->n_in == 0, goto error);
796 if (dim->n_out == 0 && !isl_dim_is_named_or_nested(dim, isl_dim_out))
798 dim = isl_dim_cow(dim);
802 names = isl_calloc_array(dim->ctx, struct isl_name *,
803 dim->nparam + dim->n_out + dim->n_out);
806 get_names(dim, isl_dim_param, 0, dim->nparam, names);
807 get_names(dim, isl_dim_out, 0, dim->n_out, names + dim->nparam);
809 dim->n_in = dim->n_out;
813 dim->n_name = dim->nparam + dim->n_out + dim->n_out;
814 dim = copy_names(dim, isl_dim_out, 0, dim, isl_dim_in);
816 isl_name_free(dim->ctx, dim->tuple_name[0]);
817 dim->tuple_name[0] = isl_name_copy(dim->ctx, dim->tuple_name[1]);
818 isl_dim_free(dim->nested[0]);
819 dim->nested[0] = isl_dim_copy(dim->nested[1]);
826 static struct isl_dim *set_names(struct isl_dim *dim, enum isl_dim_type type,
827 unsigned first, unsigned n, struct isl_name **names)
831 for (i = 0; i < n ; ++i)
832 dim = set_name(dim, type, first+i, names[i]);
837 struct isl_dim *isl_dim_reverse(struct isl_dim *dim)
841 struct isl_name **names = NULL;
842 struct isl_name *name;
846 if (match(dim, isl_dim_in, dim, isl_dim_out))
849 dim = isl_dim_cow(dim);
853 name = dim->tuple_name[0];
854 dim->tuple_name[0] = dim->tuple_name[1];
855 dim->tuple_name[1] = name;
857 nested = dim->nested[0];
858 dim->nested[0] = dim->nested[1];
859 dim->nested[1] = nested;
862 names = isl_alloc_array(dim->ctx, struct isl_name *,
863 dim->n_in + dim->n_out);
866 get_names(dim, isl_dim_in, 0, dim->n_in, names);
867 get_names(dim, isl_dim_out, 0, dim->n_out, names + dim->n_in);
871 dim->n_in = dim->n_out;
875 dim = set_names(dim, isl_dim_out, 0, dim->n_out, names);
876 dim = set_names(dim, isl_dim_in, 0, dim->n_in, names + dim->n_out);
887 struct isl_dim *isl_dim_drop(struct isl_dim *dim, enum isl_dim_type type,
888 unsigned first, unsigned num)
896 return isl_dim_reset(dim, type);
898 if (!valid_dim_type(type))
899 isl_die(dim->ctx, isl_error_invalid,
900 "cannot drop dimensions of specified type", goto error);
902 isl_assert(dim->ctx, first + num <= n(dim, type), goto error);
903 dim = isl_dim_cow(dim);
907 dim = extend_names(dim);
910 for (i = 0; i < num; ++i)
911 isl_name_free(dim->ctx, get_name(dim, type, first+i));
912 for (i = first+num; i < n(dim, type); ++i)
913 set_name(dim, type, i - num, get_name(dim, type, i));
916 get_names(dim, isl_dim_in, 0, dim->n_in,
917 dim->names + offset(dim, isl_dim_in) - num);
919 get_names(dim, isl_dim_out, 0, dim->n_out,
920 dim->names + offset(dim, isl_dim_out) - num);
927 case isl_dim_param: dim->nparam -= num; break;
928 case isl_dim_in: dim->n_in -= num; break;
929 case isl_dim_out: dim->n_out -= num; break;
932 dim = isl_dim_reset(dim, type);
933 if (type == isl_dim_param) {
934 if (dim && dim->nested[0] &&
935 !(dim->nested[0] = isl_dim_drop(dim->nested[0],
936 isl_dim_param, first, num)))
938 if (dim && dim->nested[1] &&
939 !(dim->nested[1] = isl_dim_drop(dim->nested[1],
940 isl_dim_param, first, num)))
949 struct isl_dim *isl_dim_drop_inputs(struct isl_dim *dim,
950 unsigned first, unsigned n)
954 return isl_dim_drop(dim, isl_dim_in, first, n);
957 struct isl_dim *isl_dim_drop_outputs(struct isl_dim *dim,
958 unsigned first, unsigned n)
962 return isl_dim_drop(dim, isl_dim_out, first, n);
965 struct isl_dim *isl_dim_domain(struct isl_dim *dim)
969 dim = isl_dim_drop_outputs(dim, 0, dim->n_out);
970 return isl_dim_reverse(dim);
973 __isl_give isl_dim *isl_dim_from_domain(__isl_take isl_dim *dim)
975 return isl_dim_reverse(dim);
978 struct isl_dim *isl_dim_range(struct isl_dim *dim)
982 return isl_dim_drop_inputs(dim, 0, dim->n_in);
985 __isl_give isl_dim *isl_dim_from_range(__isl_take isl_dim *dim)
990 __isl_give isl_dim *isl_dim_as_set_dim(__isl_take isl_dim *dim)
992 dim = isl_dim_cow(dim);
996 dim->n_out += dim->n_in;
998 dim = isl_dim_reset(dim, isl_dim_in);
999 dim = isl_dim_reset(dim, isl_dim_out);
1004 struct isl_dim *isl_dim_underlying(struct isl_dim *dim, unsigned n_div)
1011 dim->nparam == 0 && dim->n_in == 0 && dim->n_name == 0)
1012 return isl_dim_reset(isl_dim_reset(dim, isl_dim_in), isl_dim_out);
1013 dim = isl_dim_cow(dim);
1016 dim->n_out += dim->nparam + dim->n_in + n_div;
1020 for (i = 0; i < dim->n_name; ++i)
1021 isl_name_free(dim->ctx, get_name(dim, isl_dim_out, i));
1023 dim = isl_dim_reset(dim, isl_dim_in);
1024 dim = isl_dim_reset(dim, isl_dim_out);
1029 unsigned isl_dim_total(struct isl_dim *dim)
1031 return dim ? dim->nparam + dim->n_in + dim->n_out : 0;
1034 int isl_dim_equal(struct isl_dim *dim1, struct isl_dim *dim2)
1036 return match(dim1, isl_dim_param, dim2, isl_dim_param) &&
1037 isl_dim_tuple_match(dim1, isl_dim_in, dim2, isl_dim_in) &&
1038 isl_dim_tuple_match(dim1, isl_dim_out, dim2, isl_dim_out);
1041 int isl_dim_compatible(struct isl_dim *dim1, struct isl_dim *dim2)
1043 return dim1->nparam == dim2->nparam &&
1044 dim1->n_in + dim1->n_out == dim2->n_in + dim2->n_out;
1047 static uint32_t isl_hash_dim(uint32_t hash, __isl_keep isl_dim *dim)
1050 struct isl_name *name;
1055 hash = isl_hash_builtin(hash, dim->nparam);
1056 hash = isl_hash_builtin(hash, dim->n_in);
1057 hash = isl_hash_builtin(hash, dim->n_out);
1059 for (i = 0; i < dim->nparam; ++i) {
1060 name = get_name(dim, isl_dim_param, i);
1061 hash = isl_hash_name(hash, name);
1064 name = tuple_name(dim, isl_dim_in);
1065 hash = isl_hash_name(hash, name);
1066 name = tuple_name(dim, isl_dim_out);
1067 hash = isl_hash_name(hash, name);
1069 hash = isl_hash_dim(hash, dim->nested[0]);
1070 hash = isl_hash_dim(hash, dim->nested[1]);
1075 uint32_t isl_dim_get_hash(__isl_keep isl_dim *dim)
1082 hash = isl_hash_init();
1083 hash = isl_hash_dim(hash, dim);
1088 int isl_dim_is_wrapping(__isl_keep isl_dim *dim)
1093 if (dim->n_in != 0 || dim->tuple_name[0] || dim->nested[0])
1096 return dim->nested[1] != NULL;
1099 __isl_give isl_dim *isl_dim_wrap(__isl_take isl_dim *dim)
1106 wrap = isl_dim_alloc(dim->ctx, dim->nparam, 0, dim->n_in + dim->n_out);
1108 wrap = copy_names(wrap, isl_dim_param, 0, dim, isl_dim_param);
1109 wrap = copy_names(wrap, isl_dim_set, 0, dim, isl_dim_in);
1110 wrap = copy_names(wrap, isl_dim_set, dim->n_in, dim, isl_dim_out);
1115 wrap->nested[1] = dim;
1123 __isl_give isl_dim *isl_dim_unwrap(__isl_take isl_dim *dim)
1130 if (!isl_dim_is_wrapping(dim))
1131 isl_die(dim->ctx, isl_error_invalid, "not a wrapping dim",
1134 unwrap = isl_dim_copy(dim->nested[1]);
1143 int isl_dim_is_named_or_nested(__isl_keep isl_dim *dim, enum isl_dim_type type)
1145 if (type != isl_dim_in && type != isl_dim_out)
1149 if (dim->tuple_name[type - isl_dim_in])
1151 if (dim->nested[type - isl_dim_in])
1156 int isl_dim_may_be_set(__isl_keep isl_dim *dim)
1160 if (isl_dim_size(dim, isl_dim_in) != 0)
1162 if (isl_dim_is_named_or_nested(dim, isl_dim_in))
1167 __isl_give isl_dim *isl_dim_reset(__isl_take isl_dim *dim,
1168 enum isl_dim_type type)
1170 if (!isl_dim_is_named_or_nested(dim, type))
1173 dim = isl_dim_cow(dim);
1177 isl_name_free(dim->ctx, dim->tuple_name[type - isl_dim_in]);
1178 dim->tuple_name[type - isl_dim_in] = NULL;
1179 isl_dim_free(dim->nested[type - isl_dim_in]);
1180 dim->nested[type - isl_dim_in] = NULL;
1185 __isl_give isl_dim *isl_dim_flatten(__isl_take isl_dim *dim)
1189 if (!dim->nested[0] && !dim->nested[1])
1193 dim = isl_dim_reset(dim, isl_dim_in);
1194 if (dim && dim->nested[1])
1195 dim = isl_dim_reset(dim, isl_dim_out);
1200 /* Replace the dimensions of the given type of dst by those of src.
1202 __isl_give isl_dim *isl_dim_replace(__isl_take isl_dim *dst,
1203 enum isl_dim_type type, __isl_keep isl_dim *src)
1205 dst = isl_dim_cow(dst);
1210 dst = isl_dim_drop(dst, type, 0, isl_dim_size(dst, type));
1211 dst = isl_dim_add(dst, type, isl_dim_size(src, type));
1212 dst = copy_names(dst, type, 0, src, type);
1214 if (dst && type == isl_dim_param) {
1216 for (i = 0; i <= 1; ++i) {
1217 if (!dst->nested[i])
1219 dst->nested[i] = isl_dim_replace(dst->nested[i],
1221 if (!dst->nested[i])
1232 /* Given a dimension specification "dim" of a set, create a dimension
1233 * specification for the lift of the set. In particular, the result
1234 * is of the form [dim -> local[..]], with n_local variables in the
1235 * range of the wrapped map.
1237 __isl_give isl_dim *isl_dim_lift(__isl_take isl_dim *dim, unsigned n_local)
1244 local_dim = isl_dim_dup(dim);
1245 local_dim = isl_dim_drop(local_dim, isl_dim_set, 0, dim->n_out);
1246 local_dim = isl_dim_add(local_dim, isl_dim_set, n_local);
1247 local_dim = isl_dim_set_tuple_name(local_dim, isl_dim_set, "local");
1248 dim = isl_dim_join(isl_dim_from_domain(dim),
1249 isl_dim_from_range(local_dim));
1250 dim = isl_dim_wrap(dim);
1251 dim = isl_dim_set_tuple_name(dim, isl_dim_set, "lifted");
1256 int isl_dim_can_zip(__isl_keep isl_dim *dim)
1261 return dim->nested[0] && dim->nested[1];
1264 __isl_give isl_dim *isl_dim_zip(__isl_take isl_dim *dim)
1267 isl_dim *dom_dom, *dom_ran, *ran_dom, *ran_ran;
1269 if (!isl_dim_can_zip(dim))
1270 isl_die(dim->ctx, isl_error_invalid, "dim cannot be zipped",
1275 dom = isl_dim_unwrap(isl_dim_domain(isl_dim_copy(dim)));
1276 ran = isl_dim_unwrap(isl_dim_range(dim));
1277 dom_dom = isl_dim_domain(isl_dim_copy(dom));
1278 dom_ran = isl_dim_range(dom);
1279 ran_dom = isl_dim_domain(isl_dim_copy(ran));
1280 ran_ran = isl_dim_range(ran);
1281 dom = isl_dim_join(isl_dim_from_domain(dom_dom),
1282 isl_dim_from_range(ran_dom));
1283 ran = isl_dim_join(isl_dim_from_domain(dom_ran),
1284 isl_dim_from_range(ran_ran));
1285 return isl_dim_join(isl_dim_from_domain(isl_dim_wrap(dom)),
1286 isl_dim_from_range(isl_dim_wrap(ran)));
1292 int isl_dim_has_named_params(__isl_keep isl_dim *dim)
1299 if (dim->nparam == 0)
1301 off = isl_dim_offset(dim, isl_dim_param);
1302 if (off + dim->nparam > dim->n_name)
1304 for (i = 0; i < dim->nparam; ++i)
1305 if (!dim->names[off + i])