1 /*
2 * Copyright 2019 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/space.h>
11 #include <isl/set.h>
12
13 /* Given a piecewise function on a domain (A -> B),
14 * interchange A and B in the wrapped domain
15 * to obtain a function on the domain (B -> A).
16 */
FN(PW,domain_reverse)17 __isl_give PW *FN(PW,domain_reverse)(__isl_take PW *pw)
18 {
19 S(PW,un_op_control) control = {
20 .fn_space = &isl_space_domain_reverse,
21 .fn_domain = &isl_set_wrapped_reverse,
22 .fn_base = &FN(EL,domain_reverse),
23 };
24 return FN(PW,un_op)(pw, &control);
25 }
26