Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/debug/DynamicCounterNode.java @ 16919:0fe4732e5181
made use of generated Node classes predicated on value of graal.useGeneratedNodes system property (default is false)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Mon, 25 Aug 2014 13:45:12 +0200 |
parents | f90dcdbbb75e |
children | ffb974bef674 |
line wrap: on
line source
/* * 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.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; /** * 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 Lowerable { @Input ValueNode increment; private final String name; private final String group; private final boolean withContext; public static DynamicCounterNode create(String name, String group, ValueNode increment, boolean withContext) { return USE_GENERATED_NODES ? new DynamicCounterNodeGen(name, group, increment, withContext) : new DynamicCounterNode(name, group, increment, withContext); } DynamicCounterNode(String name, String group, ValueNode increment, boolean withContext) { super(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; } @Override public void lower(LoweringTool tool) { tool.getLowerer().lower(this, tool); } public static void addCounterBefore(String group, String name, long increment, boolean withContext, FixedNode position) { StructuredGraph graph = position.graph(); graph.addBeforeFixed(position, position.graph().add(DynamicCounterNode.create(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); }