| /* |
| * Copyright (c) 2016, 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.lir.profiling; |
| |
| import java.util.ArrayList; |
| |
| import org.graalvm.compiler.core.common.LIRKind; |
| import org.graalvm.compiler.core.common.cfg.AbstractBlockBase; |
| import org.graalvm.compiler.lir.ConstantValue; |
| import org.graalvm.compiler.lir.LIR; |
| import org.graalvm.compiler.lir.LIRInsertionBuffer; |
| import org.graalvm.compiler.lir.LIRInstruction; |
| import org.graalvm.compiler.lir.StandardOp.BlockEndOp; |
| import org.graalvm.compiler.lir.StandardOp.LabelOp; |
| import org.graalvm.compiler.lir.gen.DiagnosticLIRGeneratorTool; |
| import org.graalvm.compiler.lir.gen.LIRGenerationResult; |
| import org.graalvm.compiler.lir.phases.PostAllocationOptimizationPhase; |
| |
| import jdk.vm.ci.code.TargetDescription; |
| import jdk.vm.ci.meta.JavaConstant; |
| import jdk.vm.ci.meta.JavaKind; |
| |
| public class MethodProfilingPhase extends PostAllocationOptimizationPhase { |
| public static final String INVOCATION_GROUP = "METHOD_INVOCATION_COUNTER"; |
| public static final String ITERATION_GROUP = "METHOD_ITERATION_COUNTER"; |
| |
| @Override |
| protected void run(TargetDescription target, LIRGenerationResult lirGenRes, PostAllocationOptimizationContext context) { |
| new Analyzer(target, lirGenRes.getCompilationUnitName(), lirGenRes.getLIR(), context.diagnosticLirGenTool).run(); |
| } |
| |
| private class Analyzer { |
| private final LIR lir; |
| private final DiagnosticLIRGeneratorTool diagnosticLirGenTool; |
| private final LIRInsertionBuffer buffer; |
| private final String compilationUnitName; |
| private final ConstantValue increment; |
| |
| Analyzer(TargetDescription target, String compilationUnitName, LIR lir, DiagnosticLIRGeneratorTool diagnosticLirGenTool) { |
| this.lir = lir; |
| this.compilationUnitName = compilationUnitName; |
| this.diagnosticLirGenTool = diagnosticLirGenTool; |
| this.buffer = new LIRInsertionBuffer(); |
| this.increment = new ConstantValue(LIRKind.fromJavaKind(target.arch, JavaKind.Int), JavaConstant.INT_1); |
| } |
| |
| public void run() { |
| // insert counter at method entry |
| doBlock(lir.getControlFlowGraph().getStartBlock(), INVOCATION_GROUP); |
| for (AbstractBlockBase<?> block : lir.getControlFlowGraph().getBlocks()) { |
| if (block.isLoopHeader()) { |
| // insert counter at loop header |
| doBlock(block, ITERATION_GROUP); |
| } |
| } |
| } |
| |
| public void doBlock(AbstractBlockBase<?> block, String group) { |
| ArrayList<LIRInstruction> instructions = lir.getLIRforBlock(block); |
| assert instructions.size() >= 2 : "Malformed block: " + block + ", " + instructions; |
| assert instructions.get(instructions.size() - 1) instanceof BlockEndOp : "Not a BlockEndOp: " + instructions.get(instructions.size() - 1); |
| assert !(instructions.get(instructions.size() - 2) instanceof BlockEndOp) : "Is a BlockEndOp: " + instructions.get(instructions.size() - 2); |
| assert instructions.get(0) instanceof LabelOp : "Not a LabelOp: " + instructions.get(0); |
| assert !(instructions.get(1) instanceof LabelOp) : "Is a LabelOp: " + instructions.get(1); |
| |
| LIRInstruction op = diagnosticLirGenTool.createBenchmarkCounter(compilationUnitName, group, increment); |
| buffer.init(instructions); |
| buffer.append(1, op); |
| buffer.finish(); |
| } |
| } |
| |
| } |