1 /* 2 * Copyright (c) 2009, 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; 24 25 import org.graalvm.compiler.core.common.type.Stamp; 26 import org.graalvm.compiler.core.common.type.StampPair; 27 import org.graalvm.compiler.graph.IterableNodeType; 28 import org.graalvm.compiler.graph.NodeClass; 29 import org.graalvm.compiler.nodeinfo.NodeInfo; 30 import org.graalvm.compiler.nodes.spi.UncheckedInterfaceProvider; 31 32 /** 33 * The {@code Parameter} instruction is a placeholder for an incoming argument to a function call. 34 */ 35 @NodeInfo(nameTemplate = "P({p#index})") 36 public final class ParameterNode extends AbstractLocalNode implements IterableNodeType, UncheckedInterfaceProvider { 37 38 public static final NodeClass<ParameterNode> TYPE = NodeClass.create(ParameterNode.class); 39 40 private Stamp uncheckedStamp; 41 42 public ParameterNode(int index, StampPair stamp) { 43 super(TYPE, index, stamp.getTrustedStamp()); 44 this.uncheckedStamp = stamp.getUncheckedStamp(); 45 } 46 47 @Override 48 public Stamp uncheckedStamp() { 49 return uncheckedStamp; 50 } 51 }