Mercurial > hg > truffle
view graal/com.oracle.graal.phases/src/com/oracle/graal/phases/BasePhase.java @ 21219:a4d68add31f6
Add SSADestructionPhase.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Mon, 20 Apr 2015 16:02:38 +0200 |
parents | 2b1228d97525 |
children | 2cb94a7ae1b7 |
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/* * Copyright (c) 2011, 2013, 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.phases; import java.util.regex.*; import com.oracle.graal.debug.*; import com.oracle.graal.debug.Debug.Scope; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; /** * Base class for all compiler phases. Subclasses should be stateless. There will be one global * instance for each compiler phase that is shared for all compilations. VM-, target- and * compilation-specific data can be passed with a context object. */ public abstract class BasePhase<C> { public static final int PHASE_DUMP_LEVEL = 1; public static final int BEFORE_PHASE_DUMP_LEVEL = 3; private CharSequence name; /** * Records time spent in {@link #apply(StructuredGraph, Object, boolean)}. */ private final DebugTimer timer; /** * Counts calls to {@link #apply(StructuredGraph, Object, boolean)}. */ private final DebugMetric executionCount; /** * Accumulates the {@linkplain Graph#getNodeCount() live node count} of all graphs sent to * {@link #apply(StructuredGraph, Object, boolean)}. */ private final DebugMetric inputNodesCount; /** * Records memory usage within {@link #apply(StructuredGraph, Object, boolean)}. */ private final DebugMemUseTracker memUseTracker; private static final Pattern NAME_PATTERN = Pattern.compile("[A-Z][A-Za-z0-9]+"); private static boolean checkName(String name) { assert NAME_PATTERN.matcher(name).matches() : "illegal phase name: " + name; return true; } private static class BasePhaseStatistics { /** * Records time spent in {@link #apply(StructuredGraph, Object, boolean)}. */ private final DebugTimer timer; /** * Counts calls to {@link #apply(StructuredGraph, Object, boolean)}. */ private final DebugMetric executionCount; /** * Accumulates the {@linkplain Graph#getNodeCount() live node count} of all graphs sent to * {@link #apply(StructuredGraph, Object, boolean)}. */ private final DebugMetric inputNodesCount; /** * Records memory usage within {@link #apply(StructuredGraph, Object, boolean)}. */ private final DebugMemUseTracker memUseTracker; BasePhaseStatistics(Class<?> clazz) { timer = Debug.timer("PhaseTime_%s", clazz); executionCount = Debug.metric("PhaseCount_%s", clazz); memUseTracker = Debug.memUseTracker("PhaseMemUse_%s", clazz); inputNodesCount = Debug.metric("PhaseNodes_%s", clazz); } } private static final ClassValue<BasePhaseStatistics> statisticsClassValue = new ClassValue<BasePhaseStatistics>() { @Override protected BasePhaseStatistics computeValue(Class<?> c) { return new BasePhaseStatistics(c); } }; protected BasePhase() { BasePhaseStatistics statistics = statisticsClassValue.get(getClass()); timer = statistics.timer; executionCount = statistics.executionCount; memUseTracker = statistics.memUseTracker; inputNodesCount = statistics.inputNodesCount; } protected BasePhase(String name) { assert checkName(name); this.name = name; BasePhaseStatistics statistics = statisticsClassValue.get(getClass()); timer = statistics.timer; executionCount = statistics.executionCount; memUseTracker = statistics.memUseTracker; inputNodesCount = statistics.inputNodesCount; } protected CharSequence getDetailedName() { return getName(); } public final void apply(final StructuredGraph graph, final C context) { apply(graph, context, true); } public final void apply(final StructuredGraph graph, final C context, final boolean dumpGraph) { try (DebugCloseable a = timer.start(); Scope s = Debug.scope(getClass(), this); DebugCloseable c = memUseTracker.start()) { if (dumpGraph && Debug.isDumpEnabled(BEFORE_PHASE_DUMP_LEVEL)) { Debug.dump(BEFORE_PHASE_DUMP_LEVEL, graph, "Before phase %s", getName()); } this.run(graph, context); executionCount.increment(); inputNodesCount.add(graph.getNodeCount()); if (dumpGraph && Debug.isDumpEnabled(PHASE_DUMP_LEVEL)) { Debug.dump(PHASE_DUMP_LEVEL, graph, "After phase %s", getName()); } if (Fingerprint.ENABLED) { String graphDesc = graph.method() == null ? graph.name : graph.method().format("%H.%n(%p)"); Fingerprint.submit("After phase %s nodes in %s are %s", getName(), graphDesc, graph.getNodes().snapshot()); } if (Debug.isVerifyEnabled()) { Debug.verify(graph, "After phase %s", getName()); } assert graph.verify(); } catch (Throwable t) { throw Debug.handle(t); } } protected CharSequence createName() { String className = BasePhase.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; } protected abstract void run(StructuredGraph graph, C context); }