/*

 * Copyright (c) 2013, 2019, 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.

 *

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package org.graalvm.compiler.nodes.gc;

import org.graalvm.compiler.core.common.type.StampFactory;

import org.graalvm.compiler.graph.NodeClass;

import org.graalvm.compiler.nodeinfo.InputType;

import org.graalvm.compiler.nodeinfo.NodeInfo;

import org.graalvm.compiler.nodes.FixedWithNextNode;

import org.graalvm.compiler.nodes.memory.address.AddressNode;

import org.graalvm.compiler.nodes.spi.Lowerable;

import org.graalvm.compiler.nodes.spi.LoweringTool;

@NodeInfo

public abstract class WriteBarrier extends FixedWithNextNode implements Lowerable {

    public static final NodeClass<WriteBarrier> TYPE = NodeClass.create(WriteBarrier.class);

    @Input(InputType.Association) AddressNode address;

    protected WriteBarrier(NodeClass<? extends WriteBarrier> c, AddressNode address) {

        super(c, StampFactory.forVoid());

        this.address = address;

    }

    @Override

    public void lower(LoweringTool tool) {

        assert graph().getGuardsStage().areFrameStatesAtDeopts();

        tool.getLowerer().lower(this, tool);

    }

    public AddressNode getAddress() {

        return address;

    }

}