1 /* 2 * Copyright (c) 2013, 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.hotspot.nodes; 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.core.common.type.StampFactory; 29 import org.graalvm.compiler.graph.Node; 30 import org.graalvm.compiler.graph.NodeClass; 31 import org.graalvm.compiler.graph.spi.Canonicalizable; 32 import org.graalvm.compiler.graph.spi.CanonicalizerTool; 33 import org.graalvm.compiler.nodeinfo.InputType; 34 import org.graalvm.compiler.nodeinfo.NodeInfo; 35 import org.graalvm.compiler.nodes.ValueNode; 36 import org.graalvm.compiler.nodes.calc.FloatingNode; 37 import org.graalvm.compiler.nodes.extended.GuardingNode; 38 39 @NodeInfo(allowedUsageTypes = {InputType.Association, InputType.Value}, cycles = CYCLES_0, size = SIZE_0) 40 public final class SnippetLocationProxyNode extends FloatingNode implements Canonicalizable, Node.ValueNumberable { 41 42 public static final NodeClass<SnippetLocationProxyNode> TYPE = NodeClass.create(SnippetLocationProxyNode.class); 43 @Input(InputType.Unchecked) ValueNode location; 44 45 public SnippetLocationProxyNode(ValueNode location) { 46 super(TYPE, StampFactory.object()); 47 this.location = location; 48 } 49 50 @Override 51 public Node canonical(CanonicalizerTool tool) { 52 return location.isAllowedUsageType(InputType.Association) ? location : this; 53 } 54 55 @NodeIntrinsic 56 public static native GuardingNode location(Object location); 57 }