Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.lir/src/com/oracle/graal/lir/profiling/MoveProfiling.java @ 19913:32e3d3e53230
Add MoveProfiling.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Mon, 16 Mar 2015 17:23:22 +0100 |
parents | |
children | 422e60a2f4b9 |
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/* * Copyright (c) 2015, 2015, 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.lir.profiling; import static com.oracle.graal.api.code.ValueUtil.*; import java.util.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.*; import com.oracle.graal.compiler.common.cfg.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.StandardOp.BlockEndOp; import com.oracle.graal.lir.StandardOp.LabelOp; import com.oracle.graal.lir.StandardOp.MoveOp; import com.oracle.graal.lir.gen.*; import com.oracle.graal.lir.phases.*; public class MoveProfiling extends PostAllocationOptimizationPhase { @Override protected <B extends AbstractBlockBase<B>> void run(TargetDescription target, LIRGenerationResult lirGenRes, List<B> codeEmittingOrder, List<B> linearScanOrder, BenchmarkCounterFactory counterFactory) { new Analyzer(lirGenRes.getLIR(), counterFactory).run(); } private static enum MoveType { REG2REG("Reg", "Reg"), STACK2REG("Reg", "Stack"), CONST2REG("Reg", "Const"), REG2STACK("Stack", "Reg"), CONST2STACK("Stack", "Const"); private final String name; MoveType(String dst, String src) { this.name = String.format("%5s <- %s", dst, src); } @Override public String toString() { return name; } public static MoveType get(MoveOp move) { AllocatableValue dst = move.getResult(); Value src = move.getInput(); if (isRegister(dst)) { if (isRegister(src)) { return REG2REG; } if (isStackSlot(src)) { return STACK2REG; } if (isConstant(src)) { return CONST2REG; } } else if (isStackSlot(dst)) { if (isRegister(src)) { return REG2STACK; } if (isConstant(src)) { return CONST2STACK; } } throw GraalInternalError.shouldNotReachHere(String.format("Unrecognized Move: %s dst=%s, src=%s", move, dst, src)); } } private static class Analyzer { private final LIR lir; private final BenchmarkCounterFactory counterFactory; private final LIRInsertionBuffer buffer; private final int[] cnt; public Analyzer(LIR lir, BenchmarkCounterFactory counterFactory) { this.lir = lir; this.counterFactory = counterFactory; this.buffer = new LIRInsertionBuffer(); cnt = new int[MoveType.values().length]; } public void run() { for (AbstractBlockBase<?> block : lir.getControlFlowGraph().getBlocks()) { doBlock(block); } } public 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); // reset counters Arrays.fill(cnt, 0); // analysis phase for (LIRInstruction inst : instructions) { if (inst instanceof MoveOp) { cnt[MoveType.get((MoveOp) inst).ordinal()]++; } } // counter insertion phase List<String> names = new ArrayList<>(); List<Value> increments = new ArrayList<>(); for (MoveType type : MoveType.values()) { int i = cnt[type.ordinal()]; if (i > 0) { names.add(type.toString()); increments.add(JavaConstant.forInt(i)); } } String[] groups = new String[names.size()]; Arrays.fill(groups, "Move Operations"); LIRInstruction inst = counterFactory.createMultiBenchmarkCounter(names.toArray(new String[0]), groups, increments.toArray(new Value[0])); assert inst != null; buffer.init(instructions); buffer.append(1, inst); buffer.finish(); } } }