/*

 * Copyright (c) 2009, 2018, 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 org.graalvm.compiler.nodes;

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

import org.graalvm.compiler.graph.NodeClass;

import org.graalvm.compiler.graph.NodeInputList;

import org.graalvm.compiler.nodeinfo.InputType;

import org.graalvm.compiler.nodeinfo.NodeInfo;

import org.graalvm.compiler.nodes.extended.GuardingNode;

/**

 * Guard {@link PhiNode}s merge guard dependencies at control flow merges.

 */

@NodeInfo(nameTemplate = "GuardPhi({i#values})", allowedUsageTypes = {InputType.Guard})

public final class GuardPhiNode extends PhiNode implements GuardingNode {

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

    @OptionalInput(InputType.Guard) NodeInputList<ValueNode> values;

    public GuardPhiNode(AbstractMergeNode merge) {

        super(TYPE, StampFactory.forVoid(), merge);

        this.values = new NodeInputList<>(this);

    }

    public GuardPhiNode(AbstractMergeNode merge, ValueNode[] values) {

        super(TYPE, StampFactory.forVoid(), merge);

        this.values = new NodeInputList<>(this, values);

    }

    @Override

    public NodeInputList<ValueNode> values() {

        return values;

    }

}