/*
 * Copyright (c) 2015-2016, Intel Corporation
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *  * Neither the name of Intel Corporation nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef ROSE_BUILD_UTIL_H
#define ROSE_BUILD_UTIL_H

#include "rose_graph.h"
#include "util/graph.h"

#include <algorithm>

namespace ue2 {

/** Max allowed width for transient graphs in block mode */
#define ROSE_BLOCK_TRANSIENT_MAX_WIDTH 255U

/**
 * \brief Add two Rose depths together, coping correctly with infinity at
 * ROSE_BOUND_INF.
 */
static inline
u32 add_rose_depth(u32 a, u32 b) {
    assert(a <= ROSE_BOUND_INF);
    assert(b <= ROSE_BOUND_INF);

    if (a == ROSE_BOUND_INF || b == ROSE_BOUND_INF) {
        return ROSE_BOUND_INF;
    }

    u32 rv = a + b;
    assert(rv >= a && rv >= b);
    return rv;
}

} // namespace ue2

#endif // ROSE_BUILD_UTIL_H