/*
 * Copyright (c) 2011, 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.oracle.graal.nodes.spi;

import com.oracle.graal.api.code.*;
import com.oracle.graal.api.meta.*;
import com.oracle.graal.graph.*;
import com.oracle.graal.nodes.*;
import com.oracle.graal.nodes.cfg.*;

public interface LoweringTool {

    GraalCodeCacheProvider getRuntime();

    ValueNode createNullCheckGuard(ValueNode object, long leafGraphId);

    ValueNode createGuard(BooleanNode condition, DeoptimizationReason deoptReason, DeoptimizationAction action, long leafGraphId);

    ValueNode createGuard(BooleanNode condition, DeoptimizationReason deoptReason, DeoptimizationAction action, boolean negated, long leafGraphId);

    Assumptions assumptions();

    Block getBlockFor(Node node);

    /**
     * Gets the closest fixed node preceding the node currently being lowered.
     */
    FixedWithNextNode lastFixedNode();
}