/*

 * 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

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 */

package org.graalvm.compiler.replacements.arraycopy;

import static jdk.internal.vm.compiler.word.LocationIdentity.any;

import org.graalvm.compiler.graph.NodeClass;

import org.graalvm.compiler.nodeinfo.NodeInfo;

import org.graalvm.compiler.nodes.NamedLocationIdentity;

import org.graalvm.compiler.nodes.ValueNode;

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

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

import org.graalvm.compiler.replacements.nodes.BasicArrayCopyNode;

import jdk.internal.vm.compiler.word.LocationIdentity;

@NodeInfo

public final class ArrayCopyNode extends BasicArrayCopyNode implements Lowerable {

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

    protected final boolean forceAnyLocation;

    public ArrayCopyNode(int bci, ValueNode src, ValueNode srcPos, ValueNode dst, ValueNode dstPos, ValueNode length) {

        this(bci, src, srcPos, dst, dstPos, length, false);

    }

    public ArrayCopyNode(int bci, ValueNode src, ValueNode srcPos, ValueNode dst, ValueNode dstPos, ValueNode length, boolean forceAnyLocation) {

        super(TYPE, src, srcPos, dst, dstPos, length, null, bci);

        this.forceAnyLocation = forceAnyLocation;

        if (!forceAnyLocation) {

            elementKind = ArrayCopySnippets.Templates.selectComponentKind(this);

        } else {

            assert elementKind == null;

        }

    }

    @Override

        if (!forceAnyLocation && elementKind == null) {

            elementKind = ArrayCopySnippets.Templates.selectComponentKind(this);

        }

        if (elementKind != null) {

            return NamedLocationIdentity.getArrayLocation(elementKind);

        }

        return any();

    }

    @Override

    public void lower(LoweringTool tool) {

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

    }

    public boolean killsAnyLocation() {

        return forceAnyLocation;

    }

}