001/*
002 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.graph.spi;
024
025import jdk.internal.jvmci.meta.*;
026
027import com.oracle.graal.graph.*;
028
029public interface CanonicalizerTool {
030
031    MetaAccessProvider getMetaAccess();
032
033    ConstantReflectionProvider getConstantReflection();
034
035    boolean canonicalizeReads();
036
037    /**
038     * If this method returns false, not all {@link Node#usages() usages of a node} are yet
039     * available. So a node must not be canonicalized base on, e.g., information returned from
040     * {@link Node#hasNoUsages()}.
041     */
042    boolean allUsagesAvailable();
043}