| /* |
| * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.hotspot.nodes.aot; |
| |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.graph.Node; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.graph.spi.Canonicalizable; |
| import org.graalvm.compiler.graph.spi.CanonicalizerTool; |
| import org.graalvm.compiler.hotspot.replacements.EncodedSymbolConstant; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.ConstantNode; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.calc.FloatingNode; |
| import org.graalvm.compiler.nodes.util.GraphUtil; |
| import org.graalvm.compiler.word.Word; |
| |
| import jdk.vm.ci.meta.Constant; |
| |
| @NodeInfo |
| public final class EncodedSymbolNode extends FloatingNode implements Canonicalizable { |
| |
| public static final NodeClass<EncodedSymbolNode> TYPE = NodeClass.create(EncodedSymbolNode.class); |
| |
| @OptionalInput protected ValueNode value; |
| |
| public EncodedSymbolNode(ValueNode value) { |
| super(TYPE, null); |
| assert value != null; |
| this.value = value; |
| } |
| |
| @Override |
| public Node canonical(CanonicalizerTool tool) { |
| if (value != null) { |
| Constant constant = GraphUtil.foldIfConstantAndRemove(this, value); |
| if (constant != null) { |
| return new ConstantNode(new EncodedSymbolConstant(constant), StampFactory.pointer()); |
| } |
| } |
| return this; |
| } |
| |
| @NodeIntrinsic(setStampFromReturnType = true) |
| public static native Word encode(Object constant); |
| } |