xref: /netbsd-src/external/mit/isl/dist/isl_map_bound_templ.c (revision 5971e316fdea024efff6be8f03536623db06833e)
1 /*
2  * Copyright 2018      Cerebras Systems
3  *
4  * Use of this software is governed by the MIT license
5  *
6  * Written by Sven Verdoolaege,
7  * Cerebras Systems, 175 S San Antonio Rd, Los Altos, CA, USA
8  */
9 
10 #include "isl_multi_macro.h"
11 #undef TYPE
12 #define TYPE CAT(isl_,BASE)
13 
14 /* Check that "map" and "multi" live in the same space, ignoring parameters.
15  */
FN(check_map_equal_tuples_multi,BASE)16 static isl_stat FN(check_map_equal_tuples_multi,BASE)(__isl_keep isl_map *map,
17 	__isl_keep MULTI(BASE) *multi)
18 {
19 	isl_space *map_space, *multi_space;
20 
21 	map_space = isl_map_peek_space(map);
22 	multi_space = FN(MULTI(BASE),peek_space)(multi);
23 	return isl_space_check_equal_tuples(map_space, multi_space);
24 }
25 
26 /* Apply "map_bound" to "map" with the corresponding value in "bound"
27  * for each output dimension.
28  * If "bound" has an explicit domain (which implies that "bound"
29  * is zero-dimensional), then intersect the domain of "map"
30  * with this explicit domain instead.
31  */
FN(map_bound_multi,BASE)32 static __isl_give isl_map *FN(map_bound_multi,BASE)(__isl_take isl_map *map,
33 	__isl_take MULTI(BASE) *bound,
34 	__isl_give isl_map *map_bound(__isl_take isl_map *map,
35 		unsigned pos, __isl_take TYPE *value))
36 {
37 	int i;
38 	isl_size dim;
39 
40 	dim = isl_map_dim(map, isl_dim_out);
41 	if (dim < 0 || FN(check_map_equal_tuples_multi,BASE)(map, bound) < 0)
42 		goto error;
43 
44 	for (i = 0; i < dim; ++i) {
45 		TYPE *el;
46 
47 		el = FN(MULTI(BASE),get_at)(bound, i);
48 		map = map_bound(map, i, el);
49 	}
50 	map = FN(FN(isl_map_intersect_multi,BASE),explicit_domain)(map, bound);
51 	FN(MULTI(BASE),free)(bound);
52 	return map;
53 error:
54 	isl_map_free(map);
55 	FN(MULTI(BASE),free)(bound);
56 	return NULL;
57 }
58