| /* |
| * Copyright (c) 2013, 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.nodes.debug; |
| |
| import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_20; |
| import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_10; |
| |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.lir.LIRInstruction; |
| import org.graalvm.compiler.lir.gen.LIRGeneratorTool; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.ConstantNode; |
| import org.graalvm.compiler.nodes.FixedNode; |
| import org.graalvm.compiler.nodes.FixedWithNextNode; |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.spi.LIRLowerable; |
| import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; |
| |
| /** |
| * This node can be used to add a counter to the code that will estimate the dynamic number of calls |
| * by adding an increment to the compiled code. This should of course only be used for |
| * debugging/testing purposes. |
| * |
| * A unique counter will be created for each unique name passed to the constructor. Depending on the |
| * value of withContext, the name of the root method is added to the counter's name. |
| */ |
| @NodeInfo(size = SIZE_10, cycles = CYCLES_20) |
| public class DynamicCounterNode extends FixedWithNextNode implements LIRLowerable { |
| |
| public static final NodeClass<DynamicCounterNode> TYPE = NodeClass.create(DynamicCounterNode.class); |
| @Input ValueNode increment; |
| |
| protected final String name; |
| protected final String group; |
| protected final boolean withContext; |
| |
| public DynamicCounterNode(String name, String group, ValueNode increment, boolean withContext) { |
| this(TYPE, name, group, increment, withContext); |
| } |
| |
| protected DynamicCounterNode(NodeClass<? extends DynamicCounterNode> c, String name, String group, ValueNode increment, boolean withContext) { |
| super(c, StampFactory.forVoid()); |
| this.name = name; |
| this.group = group; |
| this.increment = increment; |
| this.withContext = withContext; |
| } |
| |
| public ValueNode getIncrement() { |
| return increment; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public String getGroup() { |
| return group; |
| } |
| |
| public boolean isWithContext() { |
| return withContext; |
| } |
| |
| public static void addCounterBefore(String group, String name, long increment, boolean withContext, FixedNode position) { |
| StructuredGraph graph = position.graph(); |
| graph.addBeforeFixed(position, position.graph().add(new DynamicCounterNode(name, group, ConstantNode.forLong(increment, position.graph()), withContext))); |
| } |
| |
| @NodeIntrinsic |
| public static native void counter(@ConstantNodeParameter String name, @ConstantNodeParameter String group, long increment, @ConstantNodeParameter boolean addContext); |
| |
| @Override |
| public void generate(NodeLIRBuilderTool generator) { |
| LIRGeneratorTool lirGen = generator.getLIRGeneratorTool(); |
| String nameWithContext; |
| if (isWithContext()) { |
| nameWithContext = getName() + " @ "; |
| if (graph().method() != null) { |
| StackTraceElement stackTraceElement = graph().method().asStackTraceElement(0); |
| if (stackTraceElement != null) { |
| nameWithContext += " " + stackTraceElement.toString(); |
| } else { |
| nameWithContext += graph().method().format("%h.%n"); |
| } |
| } |
| if (graph().name != null) { |
| nameWithContext += " (" + graph().name + ")"; |
| } |
| |
| } else { |
| nameWithContext = getName(); |
| } |
| LIRInstruction counterOp = lirGen.createBenchmarkCounter(nameWithContext, getGroup(), generator.operand(increment)); |
| if (counterOp != null) { |
| lirGen.append(counterOp); |
| } else { |
| throw GraalError.unimplemented("Benchmark counters not enabled or not implemented by the back end."); |
| } |
| } |
| |
| } |