// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 4 -*-

/*
 * (c) 2018 Petr Ročkai <code@fixp.eu>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#pragma once

#include <lart/support/meta.h>

DIVINE_RELAX_WARNINGS
#include <llvm/IR/Module.h>
#include <llvm/IR/BasicBlock.h>
DIVINE_UNRELAX_WARNINGS

namespace lart
{
    /* ensure all phi nodes in a given block use the same incoming block ordering */
    struct FixPHI
    {
        void run( llvm::Module &m );
        void fix_phi( llvm::PHINode &phi );

        static PassMeta meta()
        {
            return passMeta< FixPHI >( "fixphi", "fix ordering of PHI node incoming blocks" );
        }
    };

}