1 /*
   2  * Copyright (c) 2016, 2016, 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.nodes.extended;
  24 
  25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_2;
  26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1;
  27 
  28 import org.graalvm.compiler.core.common.LocationIdentity;
  29 import org.graalvm.compiler.core.common.type.StampFactory;
  30 import org.graalvm.compiler.graph.NodeClass;
  31 import org.graalvm.compiler.nodeinfo.NodeInfo;
  32 import org.graalvm.compiler.nodes.AbstractStateSplit;
  33 import org.graalvm.compiler.nodes.ValueNode;
  34 import org.graalvm.compiler.nodes.memory.MemoryCheckpoint;
  35 import org.graalvm.compiler.nodes.spi.Lowerable;
  36 import org.graalvm.compiler.nodes.spi.LoweringTool;
  37 
  38 import jdk.vm.ci.meta.JavaKind;
  39 
  40 /**
  41  * Store of a value at a location specified as an absolute address.
  42  */
  43 @NodeInfo(cycles = CYCLES_2, size = SIZE_1)
  44 public class UnsafeMemoryStoreNode extends AbstractStateSplit implements Lowerable, MemoryCheckpoint.Single {
  45 
  46     public static final NodeClass<UnsafeMemoryStoreNode> TYPE = NodeClass.create(UnsafeMemoryStoreNode.class);
  47     @Input protected ValueNode value;
  48     @Input protected ValueNode address;
  49     protected final JavaKind kind;
  50     protected final LocationIdentity locationIdentity;
  51 
  52     public UnsafeMemoryStoreNode(ValueNode address, ValueNode value, JavaKind kind, LocationIdentity locationIdentity) {
  53         super(TYPE, StampFactory.forVoid());
  54         this.address = address;
  55         this.value = value;
  56         this.kind = kind;
  57         this.locationIdentity = locationIdentity;
  58     }
  59 
  60     public ValueNode getValue() {
  61         return value;
  62     }
  63 
  64     public ValueNode getAddress() {
  65         return address;
  66     }
  67 
  68     public JavaKind getKind() {
  69         return kind;
  70     }
  71 
  72     @Override
  73     public void lower(LoweringTool tool) {
  74         tool.getLowerer().lower(this, tool);
  75     }
  76 
  77     @Override
  78     public LocationIdentity getLocationIdentity() {
  79         return locationIdentity;
  80     }
  81 }