| /* |
| * 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.List; |
| |
| import org.graalvm.compiler.core.common.cfg.AbstractBlockBase; |
| import org.graalvm.compiler.core.common.cfg.BlockMap; |
| import org.graalvm.compiler.lir.LIR; |
| 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.StandardOp.MoveOp; |
| |
| public final class MoveProfiler { |
| |
| public static BlockMap<MoveStatistics> profile(LIR lir) { |
| MoveProfiler profiler = new MoveProfiler(lir); |
| profiler.run(); |
| return profiler.blockMap; |
| } |
| |
| static class MoveStatistics { |
| |
| private final int[] cnt; |
| |
| MoveStatistics() { |
| cnt = new int[MoveType.values().length]; |
| |
| } |
| |
| public void add(MoveType moveType) { |
| cnt[moveType.ordinal()]++; |
| } |
| |
| public int get(MoveType moveType) { |
| return cnt[moveType.ordinal()]; |
| } |
| |
| public void add(MoveType moveType, int value) { |
| cnt[moveType.ordinal()] += value; |
| } |
| } |
| |
| private final LIR lir; |
| private final BlockMap<MoveStatistics> blockMap; |
| |
| private MoveProfiler(LIR lir) { |
| this.lir = lir; |
| blockMap = new BlockMap<>(lir.getControlFlowGraph()); |
| } |
| |
| private void run() { |
| for (AbstractBlockBase<?> block : lir.getControlFlowGraph().getBlocks()) { |
| doBlock(block); |
| } |
| } |
| |
| private void doBlock(AbstractBlockBase<?> block) { |
| List<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); |
| |
| MoveStatistics stats = null; |
| // analysis phase |
| for (LIRInstruction inst : instructions) { |
| if (inst instanceof MoveOp) { |
| if (stats == null) { |
| stats = new MoveStatistics(); |
| blockMap.put(block, stats); |
| } |
| stats.add(MoveType.get((MoveOp) inst)); |
| } |
| } |
| } |
| |
| } |