1 /*
   2  * Copyright (c) 2015, 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.nodes.debug;
  24 
  25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
  26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;
  27 
  28 import org.graalvm.compiler.graph.NodeClass;
  29 import org.graalvm.compiler.nodeinfo.NodeInfo;
  30 import org.graalvm.compiler.nodes.ValueNode;
  31 import org.graalvm.compiler.nodes.calc.FloatingNode;
  32 import org.graalvm.compiler.nodes.spi.LIRLowerable;
  33 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
  34 
  35 @NodeInfo(cycles = CYCLES_0, size = SIZE_0)
  36 public final class OpaqueNode extends FloatingNode implements LIRLowerable {
  37 
  38     public static final NodeClass<OpaqueNode> TYPE = NodeClass.create(OpaqueNode.class);
  39     @Input protected ValueNode value;
  40 
  41     public OpaqueNode(ValueNode value) {
  42         super(TYPE, value.stamp().unrestricted());
  43         this.value = value;
  44     }
  45 
  46     public ValueNode getValue() {
  47         return value;
  48     }
  49 
  50     @Override
  51     public void generate(NodeLIRBuilderTool gen) {
  52         gen.setResult(this, gen.operand(value));
  53     }
  54 }