| /* |
| * Copyright (c) 2015, 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 java.util.List; |
| |
| import org.graalvm.compiler.core.common.LIRKind; |
| import org.graalvm.compiler.core.common.cfg.AbstractBlockBase; |
| import org.graalvm.compiler.core.common.cfg.BlockMap; |
| 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.gen.DiagnosticLIRGeneratorTool; |
| import org.graalvm.compiler.lir.gen.LIRGenerationResult; |
| import org.graalvm.compiler.lir.phases.PostAllocationOptimizationPhase; |
| import org.graalvm.compiler.lir.profiling.MoveProfiler.MoveStatistics; |
| import org.graalvm.compiler.options.Option; |
| import org.graalvm.compiler.options.OptionType; |
| import org.graalvm.compiler.options.OptionValue; |
| |
| import jdk.vm.ci.code.TargetDescription; |
| import jdk.vm.ci.meta.JavaConstant; |
| import jdk.vm.ci.meta.JavaKind; |
| import jdk.vm.ci.meta.Value; |
| |
| /** |
| * Inserts counters into the {@link LIR} code to the number of move instruction dynamically |
| * executed. |
| */ |
| public class MoveProfilingPhase extends PostAllocationOptimizationPhase { |
| |
| public static class Options { |
| // @formatter:off |
| @Option(help = "Enable dynamic move profiling per method.", type = OptionType.Debug) |
| public static final OptionValue<Boolean> LIRDynMoveProfilMethod = new OptionValue<>(false); |
| // @formatter:on |
| } |
| |
| private static final String MOVE_OPERATIONS = "MoveOperations"; |
| |
| @Override |
| protected void run(TargetDescription target, LIRGenerationResult lirGenRes, PostAllocationOptimizationContext context) { |
| new Analyzer(target, lirGenRes, context.diagnosticLirGenTool).run(); |
| } |
| |
| static class Analyzer { |
| private final TargetDescription target; |
| private final LIRGenerationResult lirGenRes; |
| private final DiagnosticLIRGeneratorTool diagnosticLirGenTool; |
| private final LIRInsertionBuffer buffer; |
| private String cachedGroupName; |
| private final List<String> names; |
| private final List<String> groups; |
| private final List<Value> increments; |
| |
| Analyzer(TargetDescription target, LIRGenerationResult lirGenRes, DiagnosticLIRGeneratorTool diagnosticLirGenTool) { |
| this.target = target; |
| this.lirGenRes = lirGenRes; |
| this.diagnosticLirGenTool = diagnosticLirGenTool; |
| this.buffer = new LIRInsertionBuffer(); |
| this.names = new ArrayList<>(); |
| this.groups = new ArrayList<>(); |
| this.increments = new ArrayList<>(); |
| } |
| |
| public void run() { |
| LIR lir = lirGenRes.getLIR(); |
| BlockMap<MoveStatistics> collected = MoveProfiler.profile(lir); |
| for (AbstractBlockBase<?> block : lir.getControlFlowGraph().getBlocks()) { |
| MoveStatistics moveStatistics = collected.get(block); |
| if (moveStatistics != null) { |
| names.clear(); |
| groups.clear(); |
| increments.clear(); |
| doBlock(block, moveStatistics); |
| } |
| } |
| } |
| |
| public void doBlock(AbstractBlockBase<?> block, MoveStatistics moveStatistics) { |
| // counter insertion phase |
| for (MoveType type : MoveType.values()) { |
| String name = type.toString(); |
| // current run |
| addEntry(name, getGroupName(), moveStatistics.get(type)); |
| } |
| insertBenchmarkCounter(block); |
| } |
| |
| protected final void addEntry(String name, String groupName, int count) { |
| if (count > 0) { |
| names.add(name); |
| groups.add(groupName); |
| increments.add(new ConstantValue(LIRKind.fromJavaKind(target.arch, JavaKind.Int), JavaConstant.forInt(count))); |
| } |
| } |
| |
| protected final void insertBenchmarkCounter(AbstractBlockBase<?> block) { |
| int size = names.size(); |
| if (size > 0) { // Don't pollute LIR when nothing has to be done |
| assert size > 0 && size == groups.size() && size == increments.size(); |
| List<LIRInstruction> instructions = lirGenRes.getLIR().getLIRforBlock(block); |
| LIRInstruction inst = diagnosticLirGenTool.createMultiBenchmarkCounter(names.toArray(new String[size]), groups.toArray(new String[size]), |
| increments.toArray(new Value[size])); |
| assert inst != null; |
| buffer.init(instructions); |
| buffer.append(1, inst); |
| buffer.finish(); |
| } |
| } |
| |
| protected final String getGroupName() { |
| if (cachedGroupName == null) { |
| cachedGroupName = createGroupName(); |
| } |
| return cachedGroupName; |
| } |
| |
| protected String createGroupName() { |
| if (Options.LIRDynMoveProfilMethod.getValue()) { |
| return new StringBuilder('"').append(MOVE_OPERATIONS).append(':').append(lirGenRes.getCompilationUnitName()).append('"').toString(); |
| } |
| return MOVE_OPERATIONS; |
| } |
| } |
| |
| } |