view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/CardTableShiftNode.java @ 18661:aa4f2e3629ca

Added card table PIC support
author adlertz
date Thu, 11 Dec 2014 19:35:02 +0100
parents
children f57d86eb036f
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/*
 * Copyright (c) 2014, 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 com.oracle.graal.hotspot.replacements;

import com.oracle.graal.api.meta.*;
import com.oracle.graal.compiler.common.type.*;
import com.oracle.graal.hotspot.*;
import com.oracle.graal.nodeinfo.*;
import com.oracle.graal.nodes.calc.*;
import com.oracle.graal.nodes.spi.*;

@NodeInfo
public class CardTableShiftNode extends FloatingNode implements LIRLowerable {

    public static CardTableShiftNode create() {
        return new CardTableShiftNode();
    }

    protected CardTableShiftNode() {
        super(StampFactory.intValue());
    }

    @Override
    public void generate(NodeLIRBuilderTool generator) {
        Value res = ((HotSpotLIRGenerator) generator.getLIRGeneratorTool()).emitCardTableShift();
        generator.setResult(this, res);
    }

    @NodeIntrinsic
    public static native int cardTableShift();
}