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.extended;
  26 
  27 import org.graalvm.compiler.graph.NodeInterface;
  28 import org.graalvm.compiler.nodes.ValueNode;
  29 import org.graalvm.compiler.nodes.memory.FixedAccessNode;
  30 import org.graalvm.compiler.nodes.memory.address.AddressNode;
  31 
  32 public interface ArrayRangeWrite extends NodeInterface {
  33     AddressNode getAddress();
  34 
  35     /**
  36      * The length of the modified range.
  37      */
  38     ValueNode getLength();
  39 
  40     /**
  41      * Return true if the written array is an object array, false if it is a primitive array.
  42      */
  43     boolean writesObjectArray();
  44 
  45     /**
  46      * Returns whether this write is the initialization of the written location. If it is true, the
  47      * old value of the memory location is either uninitialized or zero. If it is false, the memory
  48      * location is guaranteed to contain a valid value or zero.
  49      */
  50     boolean isInitialization();
  51 
  52     int getElementStride();
  53 
  54     @Override
  55     FixedAccessNode asNode();
  56 }