Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/debug/DynamicCounterNode.java @ 21543:93c50cefb9e8
moved GraalInternalError to com.oracle.jvmci.common and renamed it to JVMCIError (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 25 May 2015 23:30:34 +0200 |
parents | d8e7f4eaaa8b |
children |
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/* * 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 com.oracle.graal.nodes.debug; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.gen.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.jvmci.common.*; /** * 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 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); 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 JVMCIError.unimplemented("Benchmark counters not enabled or not implemented by the back end."); } } }