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annotate graal/com.oracle.graal.phases/src/com/oracle/graal/phases/PhasePlan.java @ 10618:72d0ea03635b

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Delegate GC counter from HotSpot to Graal for tracing purposes
author Christos Kotselidis <christos.kotselidis@oracle.com>
date Sun, 07 Jul 2013 17:09:19 +0200
parents b8b4d7f3e4aa
children acc261dc165e
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1 /*
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.phases;
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25 import java.util.*;
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26
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27 import com.oracle.graal.nodes.*;
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29 /**
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30 * Tells the compiler about additional phases that need to be executed during compilation.
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31 */
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32 public class PhasePlan {
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33
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34 // @formatter:off
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35 /**
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36 * The compilation is split into the following sections:
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37 * ========================================================================
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38 * Period 1: High-level nodes. (Graph building)
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39 * ========================================================================
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40 * Runtime-specific lowering.
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41 * ========================================================================
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42 * Period 2: Mid-level nodes. (Memory dependence graph)
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43 * ========================================================================
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44 * Target-specific lowering, de-SSA.
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45 * ========================================================================
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46 * Period 3: Low-level nodes. (Register allocation, code generation)
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47 * ========================================================================
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48 *
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49 * A compiler extension phase can chose to run at the end of periods 1-3.
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50 */
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51 public static enum PhasePosition {
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52 AFTER_PARSING,
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53 HIGH_LEVEL
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54 }
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55 // @formatter:on
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56
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57 @SuppressWarnings("unchecked") private final ArrayList<Phase>[] phases = new ArrayList[PhasePosition.values().length];
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58 private final Set<Class<? extends Phase>> disabledPhases = new HashSet<>();
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59
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60 public void addPhase(PhasePosition pos, Phase phase) {
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61 if (phases[pos.ordinal()] == null) {
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62 phases[pos.ordinal()] = new ArrayList<>();
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63 }
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64 phases[pos.ordinal()].add(phase);
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65 }
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66
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67 public void runPhases(PhasePosition pos, StructuredGraph graph) {
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68 if (phases[pos.ordinal()] != null) {
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69 for (Phase p : phases[pos.ordinal()]) {
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70 p.apply(graph);
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71 }
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72 }
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73 }
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74
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75 public void disablePhase(Class<? extends Phase> clazz) {
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76 disabledPhases.add(clazz);
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77 }
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79 public boolean isPhaseDisabled(Class<? extends Phase> clazz) {
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80 return disabledPhases.contains(clazz);
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81 }
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82 }