/*
 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.graal.hotspot.snippets;

import com.oracle.graal.api.meta.*;
import com.oracle.graal.nodes.*;
import com.oracle.graal.nodes.extended.*;
import com.oracle.graal.nodes.spi.*;
import com.oracle.graal.nodes.type.*;
import com.oracle.max.cri.ci.*;

/**
 * A special purpose store node that differs from {@link UnsafeStoreNode} in that
 * it is not a {@link StateSplit} and takes a computed address instead of an object.
 */
class DirectStoreNode extends FixedWithNextNode implements LIRLowerable {
    @Input private ValueNode address;
    @Input private ValueNode value;

    public DirectStoreNode(ValueNode address, ValueNode value) {
        super(StampFactory.forVoid());
        this.address = address;
        this.value = value;
    }

    @SuppressWarnings("unused")
    @NodeIntrinsic
    public static void store(long address, long value) {
        throw new UnsupportedOperationException();
    }

    @SuppressWarnings("unused")
    @NodeIntrinsic
    public static void store(long address, boolean value) {
        throw new UnsupportedOperationException();
    }

    @Override
    public void generate(LIRGeneratorTool gen) {
        RiValue v = gen.operand(value);
        gen.emitStore(new CiAddress(v.kind, gen.operand(address)), v, false);
    }
}