1 /*
   2  * Copyright (c) 2017, 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.aot;
  24 
  25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_4;
  26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_16;
  27 
  28 import org.graalvm.word.LocationIdentity;
  29 import org.graalvm.compiler.core.common.type.Stamp;
  30 import org.graalvm.compiler.graph.NodeClass;
  31 import org.graalvm.compiler.nodeinfo.InputType;
  32 import org.graalvm.compiler.nodeinfo.NodeInfo;
  33 import org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode;
  34 import org.graalvm.compiler.nodes.ValueNode;
  35 import org.graalvm.compiler.nodes.memory.MemoryCheckpoint;
  36 import org.graalvm.compiler.nodes.spi.Lowerable;
  37 import org.graalvm.compiler.nodes.spi.LoweringTool;
  38 
  39 @NodeInfo(cycles = CYCLES_4, size = SIZE_16, allowedUsageTypes = {InputType.Memory})
  40 public class ResolveDynamicConstantNode extends DeoptimizingFixedWithNextNode implements Lowerable, MemoryCheckpoint.Single {
  41     public static final NodeClass<ResolveDynamicConstantNode> TYPE = NodeClass.create(ResolveDynamicConstantNode.class);
  42 
  43     @Input ValueNode value;
  44 
  45     public ResolveDynamicConstantNode(Stamp valueStamp, ValueNode value) {
  46         super(TYPE, valueStamp);
  47         this.value = value;
  48     }
  49 
  50     public ValueNode value() {
  51         return value;
  52     }
  53 
  54     @Override
  55     public void lower(LoweringTool tool) {
  56         tool.getLowerer().lower(this, tool);
  57     }
  58 
  59     @Override
  60     public boolean canDeoptimize() {
  61         return true;
  62     }
  63 
  64     @Override
  65     public LocationIdentity getLocationIdentity() {
  66         return LocationIdentity.any();
  67     }
  68 
  69 }