/*******************************************************************************
 * Copyright IBM Corp. and others 2000
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
 * or the Apache License, Version 2.0 which accompanies this distribution
 * and is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception [1] and GNU General Public
 * License, version 2 with the OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
 * [2] https://openjdk.org/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
 *******************************************************************************/

#include <stddef.h>
#include <stdint.h>
#include "optimizer/DataFlowAnalysis.hpp"

class TR_BitVector;

// This file defines the methods in class BackwardUnionBitVectorAnalysis.
//
template<class Container>
void TR_BackwardUnionDFSetAnalysis<Container *>::compose(Container *firstBitVector, Container *secondBitVector)
{
    *firstBitVector |= *secondBitVector;
}

template<class Container>
void TR_BackwardUnionDFSetAnalysis<Container *>::inverseCompose(Container *firstBitVector, Container *secondBitVector)
{
    *firstBitVector &= *secondBitVector;
}

template<class Container> void TR_BackwardUnionDFSetAnalysis<Container *>::initializeOutSetInfo()
{
    int32_t i;
    for (i = 0; i < this->_numberOfNodes; i++)
        this->_currentOutSetInfo[i]->empty();
}

template<class Container> void TR_BackwardUnionDFSetAnalysis<Container *>::initializeCurrentGenKillSetInfo() {}

template<class Container> Container *TR_BackwardUnionDFSetAnalysis<Container *>::initializeInfo(Container *info)
{
    Container *result = info;
    if (result == NULL)
        this->allocateContainer(&result, true);
    else
        result->empty();
    return result;
}

template<class Container> Container *TR_BackwardUnionDFSetAnalysis<Container *>::inverseInitializeInfo(Container *info)
{
    Container *result = info;
    if (result == NULL)
#if FLEX_USE_INVERTED_BIT_VECTORS
        this->allocateContainer(&result, true);
#else
        this->allocateContainer(&result, false);
#endif
    result->setAll(this->_numberOfBits);
    return result;
}

template<class Container> TR_DataFlowAnalysis::Kind TR_BackwardUnionDFSetAnalysis<Container *>::getKind()
{
    return TR_DataFlowAnalysis::BackwardUnionDFSetAnalysis;
}

template class TR_BackwardUnionDFSetAnalysis<TR_BitVector *>;
template class TR_BackwardUnionDFSetAnalysis<TR_SingleBitContainer *>;
