1 /*
   2  * Copyright (c) 2013, 2015, 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 package org.graalvm.compiler.hotspot.nodes;
  24 
  25 import org.graalvm.compiler.graph.NodeClass;
  26 import org.graalvm.compiler.nodeinfo.InputType;
  27 import org.graalvm.compiler.nodeinfo.NodeInfo;
  28 import org.graalvm.compiler.nodes.ValueNode;
  29 import org.graalvm.compiler.nodes.memory.address.AddressNode;
  30 
  31 @NodeInfo
  32 public abstract class ObjectWriteBarrier extends WriteBarrier {
  33 
  34     public static final NodeClass<ObjectWriteBarrier> TYPE = NodeClass.create(ObjectWriteBarrier.class);
  35     @Input(InputType.Association) protected AddressNode address;
  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);
  41         this.address = address;
  42         this.value = value;
  43         this.precise = precise;
  44     }
  45 
  46     public ValueNode getValue() {
  47         return value;
  48     }
  49 
  50     public AddressNode getAddress() {
  51         return address;
  52     }
  53 
  54     public boolean usePrecise() {
  55         return precise;
  56     }
  57 }