1 /*

     2  * Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 

    25 package org.graalvm.compiler.nodes.gc;

    26 

    27 import org.graalvm.compiler.graph.NodeClass;

    28 import org.graalvm.compiler.nodeinfo.NodeInfo;

    29 import org.graalvm.compiler.nodes.ValueNode;

    30 import org.graalvm.compiler.nodes.memory.address.AddressNode;

    31 

    32 @NodeInfo

    33 public abstract class ObjectWriteBarrier extends WriteBarrier {

    34 

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

    36     @OptionalInput protected ValueNode value;

    37     protected final boolean precise;

    38 

    39     protected ObjectWriteBarrier(NodeClass<? extends ObjectWriteBarrier> c, AddressNode address, ValueNode value, boolean precise) {

    40         super(c, address);

    41         this.value = value;

    42         this.precise = precise;

    43     }

    44 

    45     public ValueNode getValue() {

    46         return value;

    47     }

    48 

    49     public boolean usePrecise() {

    50         return precise;

    51     }

    52 }