| /* |
| * Copyright (c) 2015, 2015, 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.microbenchmarks.graal.util; |
| |
| import static org.graalvm.compiler.microbenchmarks.graal.util.GraalUtil.getGraphFromMethodSpec; |
| import static org.graalvm.compiler.microbenchmarks.graal.util.GraalUtil.getNodes; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.openjdk.jmh.annotations.Level; |
| import org.openjdk.jmh.annotations.Scope; |
| import org.openjdk.jmh.annotations.State; |
| import org.openjdk.jmh.annotations.TearDown; |
| |
| import org.graalvm.compiler.graph.Node; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| |
| /** |
| * State providing the nodes in a graph. Subclasses of this class are annotated with |
| * {@link MethodSpec} to specify the Java method that will be parsed to obtain the original graph. |
| */ |
| @State(Scope.Benchmark) |
| public abstract class NodesState { |
| |
| public NodesState() { |
| this.graph = getGraphFromMethodSpec(getClass()); |
| this.nodes = getNodes(graph); |
| this.originalNodes = nodes.clone(); |
| List<Node> vnln = new ArrayList<>(nodes.length); |
| List<NodePair> list2 = new ArrayList<>(nodes.length); |
| for (int i = 0; i < nodes.length; i++) { |
| Node n = nodes[i]; |
| NodeClass<?> nc = n.getNodeClass(); |
| if (nc.valueNumberable() && nc.isLeafNode()) { |
| vnln.add(n); |
| } |
| for (int j = i + i; j < nodes.length; j++) { |
| Node o = nodes[j]; |
| if (o.getClass() == n.getClass()) { |
| list2.add(new NodePair(n, o)); |
| } |
| } |
| } |
| valueNumberableLeafNodes = vnln.toArray(new Node[vnln.size()]); |
| valueEqualsNodePairs = list2.toArray(new NodePair[list2.size()]); |
| } |
| |
| /** |
| * Used to check that benchmark does not mutate {@link #nodes}. |
| */ |
| private final Node[] originalNodes; |
| |
| /** |
| * The nodes processed by the benchmark. These arrays must be treated as read-only within the |
| * benchmark method. |
| */ |
| public final StructuredGraph graph; |
| public final Node[] nodes; |
| public final Node[] valueNumberableLeafNodes; |
| public final NodePair[] valueEqualsNodePairs; |
| |
| public final class NodePair { |
| public final Node n1; |
| public final Node n2; |
| |
| public NodePair(Node n1, Node n2) { |
| this.n1 = n1; |
| this.n2 = n2; |
| } |
| } |
| |
| private int invocation; |
| |
| @TearDown(Level.Invocation) |
| public void afterInvocation() { |
| if (invocation == 0) { |
| // Only need to check the first invocation |
| invocation++; |
| for (int i = 0; i < nodes.length; i++) { |
| if (nodes[i] != originalNodes[i]) { |
| throw new InternalError(String.format("Benchmark method mutated node %d: original=%s, current=%s", i, originalNodes[i], nodes[i])); |
| } |
| } |
| } |
| } |
| } |