Mercurial > hg > graal-compiler
view graal/com.oracle.graal.lir/src/com/oracle/graal/lir/phases/LIRPhase.java @ 23209:f35e653aa876
moved @Option mechanism from JVMCI to Graal (GRAAL-1371)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 21 Dec 2015 16:19:35 +0100 |
parents | 615f3bbbb174 |
children |
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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.phases; import java.util.List; import java.util.regex.Pattern; import jdk.vm.ci.code.TargetDescription; import com.oracle.graal.compiler.common.cfg.AbstractBlockBase; import com.oracle.graal.debug.Debug; import com.oracle.graal.debug.Debug.Scope; import com.oracle.graal.debug.DebugCloseable; import com.oracle.graal.debug.DebugMemUseTracker; import com.oracle.graal.debug.DebugTimer; import com.oracle.graal.lir.LIR; import com.oracle.graal.lir.gen.LIRGenerationResult; import com.oracle.graal.options.Option; import com.oracle.graal.options.OptionType; import com.oracle.graal.options.OptionValue; /** * Base class for all {@link LIR low-level} phases. Subclasses should be stateless. There will be * one global instance for each phase that is shared for all compilations. */ public abstract class LIRPhase<C> { public static class Options { // @formatter:off @Option(help = "Enable LIR level optimiztations.", type = OptionType.Debug) public static final OptionValue<Boolean> LIROptimization = new OptionValue<>(true); // @formatter:on } private static final int PHASE_DUMP_LEVEL = 2; private CharSequence name; /** * Records time spent within {@link #apply}. */ private final DebugTimer timer; /** * Records memory usage within {@link #apply}. */ private final DebugMemUseTracker memUseTracker; private static class LIRPhaseStatistics { /** * Records time spent within {@link #apply}. */ private final DebugTimer timer; /** * Records memory usage within {@link #apply}. */ private final DebugMemUseTracker memUseTracker; LIRPhaseStatistics(Class<?> clazz) { timer = Debug.timer("LIRPhaseTime_%s", clazz); memUseTracker = Debug.memUseTracker("LIRPhaseMemUse_%s", clazz); } } private static final ClassValue<LIRPhaseStatistics> statisticsClassValue = new ClassValue<LIRPhaseStatistics>() { @Override protected LIRPhaseStatistics computeValue(Class<?> c) { return new LIRPhaseStatistics(c); } }; /** Lazy initialization to create pattern only when assertions are enabled. */ static class NamePatternHolder { static final Pattern NAME_PATTERN = Pattern.compile("[A-Z][A-Za-z0-9]+"); } private static boolean checkName(String name) { assert name == null || NamePatternHolder.NAME_PATTERN.matcher(name).matches() : "illegal phase name: " + name; return true; } public LIRPhase() { LIRPhaseStatistics statistics = statisticsClassValue.get(getClass()); timer = statistics.timer; memUseTracker = statistics.memUseTracker; } protected LIRPhase(String name) { assert checkName(name); this.name = name; LIRPhaseStatistics statistics = statisticsClassValue.get(getClass()); timer = statistics.timer; memUseTracker = statistics.memUseTracker; } public final <B extends AbstractBlockBase<B>> void apply(TargetDescription target, LIRGenerationResult lirGenRes, List<B> codeEmittingOrder, List<B> linearScanOrder, C context) { apply(target, lirGenRes, codeEmittingOrder, linearScanOrder, context, true); } @SuppressWarnings("try") public final <B extends AbstractBlockBase<B>> void apply(TargetDescription target, LIRGenerationResult lirGenRes, List<B> codeEmittingOrder, List<B> linearScanOrder, C context, boolean dumpLIR) { try (Scope s = Debug.scope(getName(), this)) { try (DebugCloseable a = timer.start(); DebugCloseable c = memUseTracker.start()) { run(target, lirGenRes, codeEmittingOrder, linearScanOrder, context); if (dumpLIR && Debug.isDumpEnabled(PHASE_DUMP_LEVEL)) { Debug.dump(PHASE_DUMP_LEVEL, lirGenRes.getLIR(), "%s", getName()); } } } catch (Throwable e) { throw Debug.handle(e); } } protected abstract <B extends AbstractBlockBase<B>> void run(TargetDescription target, LIRGenerationResult lirGenRes, List<B> codeEmittingOrder, List<B> linearScanOrder, C context); protected CharSequence createName() { String className = LIRPhase.this.getClass().getName(); String s = className.substring(className.lastIndexOf(".") + 1); // strip the package name if (s.endsWith("Phase")) { s = s.substring(0, s.length() - "Phase".length()); } return s; } public final CharSequence getName() { if (name == null) { name = createName(); } return name; } }