1/* 2 * Copyright (c) 2016, 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 24package org.graalvm.compiler.hotspot.nodes.profiling; 25 26import jdk.vm.ci.meta.Value; 27 28import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_1; 29import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1; 30 31import org.graalvm.compiler.core.common.type.StampFactory; 32import org.graalvm.compiler.graph.NodeClass; 33import org.graalvm.compiler.hotspot.HotSpotLIRGenerator; 34import org.graalvm.compiler.nodeinfo.NodeInfo; 35import org.graalvm.compiler.nodes.calc.FloatingNode; 36import org.graalvm.compiler.nodes.spi.LIRLowerable; 37import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; 38 39@NodeInfo(cycles = CYCLES_1, size = SIZE_1) 40public class RandomSeedNode extends FloatingNode implements LIRLowerable { 41 public static final NodeClass<RandomSeedNode> TYPE = NodeClass.create(RandomSeedNode.class); 42 43 public RandomSeedNode() { 44 super(TYPE, StampFactory.intValue()); 45 } 46 47 @Override 48 public void generate(NodeLIRBuilderTool gen) { 49 Value result = ((HotSpotLIRGenerator) gen.getLIRGeneratorTool()).emitRandomSeed(); 50 gen.setResult(this, result); 51 } 52} 53