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annotate src/share/vm/opto/phase.hpp @ 12355:cefad50507d8

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Merge with hs25-b53
author Gilles Duboscq <duboscq@ssw.jku.at>
date Fri, 11 Oct 2013 10:38:03 +0200
parents 6f3fd5150b67
children de6a9e811145 044b28168e20
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1 /*
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2 * Copyright (c) 1997, 2012, 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 */
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24
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25 #ifndef SHARE_VM_OPTO_PHASE_HPP
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26 #define SHARE_VM_OPTO_PHASE_HPP
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27
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28 #include "libadt/port.hpp"
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29 #include "runtime/timer.hpp"
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30
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31 class Compile;
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32
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33 //------------------------------Phase------------------------------------------
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34 // Most optimizations are done in Phases. Creating a phase does any long
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35 // running analysis required, and caches the analysis in internal data
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36 // structures. Later the analysis is queried using transform() calls to
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37 // guide transforming the program. When the Phase is deleted, so is any
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38 // cached analysis info. This basic Phase class mostly contains timing and
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39 // memory management code.
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40 class Phase : public StackObj {
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41 public:
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42 enum PhaseNumber {
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43 Compiler, // Top-level compiler phase
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44 Parser, // Parse bytecodes
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45 Remove_Useless, // Remove useless nodes
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46 Optimistic, // Optimistic analysis phase
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47 GVN, // Pessimistic global value numbering phase
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48 Ins_Select, // Instruction selection phase
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49 CFG, // Build a CFG
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50 BlockLayout, // Linear ordering of blocks
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51 Register_Allocation, // Register allocation, duh
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52 LIVE, // Dragon-book LIVE range problem
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53 StringOpts, // StringBuilder related optimizations
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54 Interference_Graph, // Building the IFG
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55 Coalesce, // Coalescing copies
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56 Ideal_Loop, // Find idealized trip-counted loops
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57 Macro_Expand, // Expand macro nodes
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58 Peephole, // Apply peephole optimizations
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59 last_phase
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60 };
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61 protected:
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62 enum PhaseNumber _pnum; // Phase number (for stat gathering)
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63
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64 #ifndef PRODUCT
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65 static int _total_bytes_compiled;
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66
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67 // accumulated timers
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68 static elapsedTimer _t_totalCompilation;
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69 static elapsedTimer _t_methodCompilation;
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70 static elapsedTimer _t_stubCompilation;
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71 #endif
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72
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73 // The next timers used for LogCompilation
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74 static elapsedTimer _t_parser;
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75 static elapsedTimer _t_optimizer;
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76 public:
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77 // ConnectionGraph can't be Phase since it is used after EA done.
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78 static elapsedTimer _t_escapeAnalysis;
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79 static elapsedTimer _t_connectionGraph;
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80 protected:
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81 static elapsedTimer _t_idealLoop;
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82 static elapsedTimer _t_ccp;
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83 static elapsedTimer _t_matcher;
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84 static elapsedTimer _t_registerAllocation;
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85 static elapsedTimer _t_output;
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86
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87 #ifndef PRODUCT
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88 static elapsedTimer _t_graphReshaping;
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89 static elapsedTimer _t_scheduler;
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90 static elapsedTimer _t_blockOrdering;
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91 static elapsedTimer _t_macroEliminate;
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92 static elapsedTimer _t_macroExpand;
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93 static elapsedTimer _t_peephole;
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94 static elapsedTimer _t_codeGeneration;
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95 static elapsedTimer _t_registerMethod;
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96 static elapsedTimer _t_temporaryTimer1;
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97 static elapsedTimer _t_temporaryTimer2;
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98 static elapsedTimer _t_idealLoopVerify;
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99
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100 // Subtimers for _t_optimizer
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101 static elapsedTimer _t_iterGVN;
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102 static elapsedTimer _t_iterGVN2;
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103 static elapsedTimer _t_incrInline;
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104
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105 // Subtimers for _t_registerAllocation
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106 static elapsedTimer _t_ctorChaitin;
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107 static elapsedTimer _t_buildIFGphysical;
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108 static elapsedTimer _t_computeLive;
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109 static elapsedTimer _t_regAllocSplit;
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110 static elapsedTimer _t_postAllocCopyRemoval;
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111 static elapsedTimer _t_fixupSpills;
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112
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113 // Subtimers for _t_output
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114 static elapsedTimer _t_instrSched;
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115 static elapsedTimer _t_buildOopMaps;
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116 #endif
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117 public:
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118 Compile * C;
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119 Phase( PhaseNumber pnum );
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120 #ifndef PRODUCT
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121 static void print_timers();
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122 #endif
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123 };
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124
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125 #endif // SHARE_VM_OPTO_PHASE_HPP