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