/*
 * Copyright (c) 2011, 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.spi;

import org.graalvm.compiler.nodes.ValueNodeInterface;

/**
 * Interface implemented by nodes that can replace themselves with lower level nodes during a phase
 * that transforms a graph to replace higher level nodes with lower level nodes.
 */
public interface Lowerable extends ValueNodeInterface {

    /**
     * Expand this node into lower level nodes expressing the same semantics. If the introduced
     * nodes are themselves lowerable, they should be recursively lowered as part of this call.
     */
    void lower(LoweringTool tool);
}