/*******************************************************************************
 * Copyright IBM Corp. and others 2019
 *
 * 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
 *******************************************************************************/

#ifndef OMR_RV_REGISTER_INCL
#define OMR_RV_REGISTER_INCL

/*
 * The following #define and typedef must appear before any #includes in this file
 */
#ifndef OMR_REGISTER_CONNECTOR
#define OMR_REGISTER_CONNECTOR

namespace OMR {
namespace RV {
class Register;
}

typedef OMR::RV::Register RegisterConnector;
} // namespace OMR
#else
#error OMR::RV::Register expected to be a primary connector, but a OMR connector is already defined
#endif

#include "compiler/codegen/OMRRegister.hpp"

class TR_LiveRegisterInfo;

namespace OMR { namespace RV {

class OMR_EXTENSIBLE Register : public OMR::Register {
protected:
    Register(uint32_t f = 0)
        : OMR::Register(f)
    {
        _liveRegisterInfo._liveRegister = NULL;
    }

    Register(TR_RegisterKinds rk)
        : OMR::Register(rk)
    {
        _liveRegisterInfo._liveRegister = NULL;
    }

    Register(TR_RegisterKinds rk, uint16_t ar)
        : OMR::Register(rk, ar)
    {
        _liveRegisterInfo._liveRegister = NULL;
    }

public:
    /*
     * Getter/setters
     */
    TR_LiveRegisterInfo *getLiveRegisterInfo() { return _liveRegisterInfo._liveRegister; }

    TR_LiveRegisterInfo *setLiveRegisterInfo(TR_LiveRegisterInfo *p) { return (_liveRegisterInfo._liveRegister = p); }

    uint64_t getInterference() { return _liveRegisterInfo._interference; }

    uint64_t setInterference(uint64_t i) { return (_liveRegisterInfo._interference = i); }

private:
    union {
        TR_LiveRegisterInfo *_liveRegister; // Live register entry representing this register
        uint32_t _interference; // Real registers that interfere with this register
    } _liveRegisterInfo;
};

}} // namespace OMR::RV

#endif /* OMR_RV_REGISTER_INCL */
