1/*
2 * Copyright (c) 2015-2016, Intel Corporation
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * * Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Intel Corporation nor the names of its contributors
13 * may be used to endorse or promote products derived from this software
14 * without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef ROSE_BUILD_UTIL_H
30#define ROSE_BUILD_UTIL_H
31
32#include "rose_graph.h"
33#include "util/graph.h"
34
35#include <algorithm>
36
37namespace ue2 {
38
39/** Max allowed width for transient graphs in block mode */
40#define ROSE_BLOCK_TRANSIENT_MAX_WIDTH 255U
41
42/**
43 * \brief Add two Rose depths together, coping correctly with infinity at
44 * ROSE_BOUND_INF.
45 */
46static inline
47u32 add_rose_depth(u32 a, u32 b) {
48 assert(a <= ROSE_BOUND_INF);
49 assert(b <= ROSE_BOUND_INF);
50
51 if (a == ROSE_BOUND_INF || b == ROSE_BOUND_INF) {
52 return ROSE_BOUND_INF;
53 }
54
55 u32 rv = a + b;
56 assert(rv >= a && rv >= b);
57 return rv;
58}
59
60} // namespace ue2
61
62#endif // ROSE_BUILD_UTIL_H
63