src/share/vm/opto/phase.cpp

Fri, 27 Feb 2009 13:27:09 -0800

author
twisti
date
Fri, 27 Feb 2009 13:27:09 -0800
changeset 1040
98cb887364d3
parent 905
ad8c8ca4ab0f
child 1356
046932b72aa2
permissions
-rw-r--r--

6810672: Comment typos
Summary: I have collected some typos I have found while looking at the code.
Reviewed-by: kvn, never

     1 /*
     2  * Copyright 1997-2008 Sun Microsystems, Inc.  All Rights Reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  *
    23  */
    25 #include "incls/_precompiled.incl"
    26 #include "incls/_phase.cpp.incl"
    28 #ifndef PRODUCT
    29 int Phase::_total_bytes_compiled = 0;
    31 elapsedTimer Phase::_t_totalCompilation;
    32 elapsedTimer Phase::_t_methodCompilation;
    33 elapsedTimer Phase::_t_stubCompilation;
    34 #endif
    36 // The next timers used for LogCompilation
    37 elapsedTimer Phase::_t_parser;
    38 elapsedTimer Phase::_t_escapeAnalysis;
    39 elapsedTimer Phase::_t_optimizer;
    40 elapsedTimer   Phase::_t_idealLoop;
    41 elapsedTimer   Phase::_t_ccp;
    42 elapsedTimer Phase::_t_matcher;
    43 elapsedTimer Phase::_t_registerAllocation;
    44 elapsedTimer Phase::_t_output;
    46 #ifndef PRODUCT
    47 elapsedTimer Phase::_t_graphReshaping;
    48 elapsedTimer Phase::_t_scheduler;
    49 elapsedTimer Phase::_t_blockOrdering;
    50 elapsedTimer Phase::_t_macroExpand;
    51 elapsedTimer Phase::_t_peephole;
    52 elapsedTimer Phase::_t_codeGeneration;
    53 elapsedTimer Phase::_t_registerMethod;
    54 elapsedTimer Phase::_t_temporaryTimer1;
    55 elapsedTimer Phase::_t_temporaryTimer2;
    57 // Subtimers for _t_optimizer
    58 elapsedTimer   Phase::_t_iterGVN;
    59 elapsedTimer   Phase::_t_iterGVN2;
    61 // Subtimers for _t_registerAllocation
    62 elapsedTimer   Phase::_t_ctorChaitin;
    63 elapsedTimer   Phase::_t_buildIFGphysical;
    64 elapsedTimer   Phase::_t_computeLive;
    65 elapsedTimer   Phase::_t_regAllocSplit;
    66 elapsedTimer   Phase::_t_postAllocCopyRemoval;
    67 elapsedTimer   Phase::_t_fixupSpills;
    69 // Subtimers for _t_output
    70 elapsedTimer   Phase::_t_instrSched;
    71 elapsedTimer   Phase::_t_buildOopMaps;
    72 #endif
    74 //------------------------------Phase------------------------------------------
    75 Phase::Phase( PhaseNumber pnum ) : _pnum(pnum), C( pnum == Compiler ? NULL : Compile::current()) {
    76   // Poll for requests from shutdown mechanism to quiesce compiler (4448539, 4448544).
    77   // This is an effective place to poll, since the compiler is full of phases.
    78   // In particular, every inlining site uses a recursively created Parse phase.
    79   CompileBroker::maybe_block();
    80 }
    82 #ifndef PRODUCT
    83 static const double minimum_reported_time             = 0.0001; // seconds
    84 static const double expected_method_compile_coverage  = 0.97;   // %
    85 static const double minimum_meaningful_method_compile = 2.00;   // seconds
    87 void Phase::print_timers() {
    88   tty->print_cr ("Accumulated compiler times:");
    89   tty->print_cr ("---------------------------");
    90   tty->print_cr ("  Total compilation: %3.3f sec.", Phase::_t_totalCompilation.seconds());
    91   tty->print    ("    method compilation : %3.3f sec", Phase::_t_methodCompilation.seconds());
    92   tty->print    ("/%d bytes",_total_bytes_compiled);
    93   tty->print_cr (" (%3.0f bytes per sec) ", Phase::_total_bytes_compiled / Phase::_t_methodCompilation.seconds());
    94   tty->print_cr ("    stub compilation   : %3.3f sec.", Phase::_t_stubCompilation.seconds());
    95   tty->print_cr ("  Phases:");
    96   tty->print_cr ("    parse        : %3.3f sec", Phase::_t_parser.seconds());
    97   if (DoEscapeAnalysis) {
    98     tty->print_cr ("    escape analysis : %3.3f sec", Phase::_t_escapeAnalysis.seconds());
    99   }
   100   tty->print_cr ("    optimizer    : %3.3f sec", Phase::_t_optimizer.seconds());
   101   if( Verbose || WizardMode ) {
   102     tty->print_cr ("      iterGVN      : %3.3f sec", Phase::_t_iterGVN.seconds());
   103     tty->print_cr ("      idealLoop    : %3.3f sec", Phase::_t_idealLoop.seconds());
   104     tty->print_cr ("      ccp          : %3.3f sec", Phase::_t_ccp.seconds());
   105     tty->print_cr ("      iterGVN2     : %3.3f sec", Phase::_t_iterGVN2.seconds());
   106     tty->print_cr ("      graphReshape : %3.3f sec", Phase::_t_graphReshaping.seconds());
   107     double optimizer_subtotal = Phase::_t_iterGVN.seconds() +
   108       Phase::_t_idealLoop.seconds() + Phase::_t_ccp.seconds() +
   109       Phase::_t_graphReshaping.seconds();
   110     double percent_of_optimizer = ((optimizer_subtotal == 0.0) ? 0.0 : (optimizer_subtotal / Phase::_t_optimizer.seconds() * 100.0));
   111     tty->print_cr ("      subtotal     : %3.3f sec,  %3.2f %%", optimizer_subtotal, percent_of_optimizer);
   112   }
   113   tty->print_cr ("    matcher      : %3.3f sec", Phase::_t_matcher.seconds());
   114   tty->print_cr ("    scheduler    : %3.3f sec", Phase::_t_scheduler.seconds());
   115   tty->print_cr ("    regalloc     : %3.3f sec", Phase::_t_registerAllocation.seconds());
   116   if( Verbose || WizardMode ) {
   117     tty->print_cr ("      ctorChaitin  : %3.3f sec", Phase::_t_ctorChaitin.seconds());
   118     tty->print_cr ("      buildIFG     : %3.3f sec", Phase::_t_buildIFGphysical.seconds());
   119     tty->print_cr ("      computeLive  : %3.3f sec", Phase::_t_computeLive.seconds());
   120     tty->print_cr ("      regAllocSplit: %3.3f sec", Phase::_t_regAllocSplit.seconds());
   121     tty->print_cr ("      postAllocCopyRemoval: %3.3f sec", Phase::_t_postAllocCopyRemoval.seconds());
   122     tty->print_cr ("      fixupSpills  : %3.3f sec", Phase::_t_fixupSpills.seconds());
   123     double regalloc_subtotal = Phase::_t_ctorChaitin.seconds() +
   124       Phase::_t_buildIFGphysical.seconds() + Phase::_t_computeLive.seconds() +
   125       Phase::_t_regAllocSplit.seconds()    + Phase::_t_fixupSpills.seconds() +
   126       Phase::_t_postAllocCopyRemoval.seconds();
   127     double percent_of_regalloc = ((regalloc_subtotal == 0.0) ? 0.0 : (regalloc_subtotal / Phase::_t_registerAllocation.seconds() * 100.0));
   128     tty->print_cr ("      subtotal     : %3.3f sec,  %3.2f %%", regalloc_subtotal, percent_of_regalloc);
   129   }
   130   tty->print_cr ("    macroExpand  : %3.3f sec", Phase::_t_macroExpand.seconds());
   131   tty->print_cr ("    blockOrdering: %3.3f sec", Phase::_t_blockOrdering.seconds());
   132   tty->print_cr ("    peephole     : %3.3f sec", Phase::_t_peephole.seconds());
   133   tty->print_cr ("    codeGen      : %3.3f sec", Phase::_t_codeGeneration.seconds());
   134   tty->print_cr ("    install_code : %3.3f sec", Phase::_t_registerMethod.seconds());
   135   tty->print_cr ("    ------------ : ----------");
   136   double phase_subtotal = Phase::_t_parser.seconds() +
   137     (DoEscapeAnalysis ? Phase::_t_escapeAnalysis.seconds() : 0.0) +
   138     Phase::_t_optimizer.seconds() + Phase::_t_graphReshaping.seconds() +
   139     Phase::_t_matcher.seconds() + Phase::_t_scheduler.seconds() +
   140     Phase::_t_registerAllocation.seconds() + Phase::_t_blockOrdering.seconds() +
   141     Phase::_t_macroExpand.seconds() + Phase::_t_peephole.seconds() +
   142     Phase::_t_codeGeneration.seconds() + Phase::_t_registerMethod.seconds();
   143   double percent_of_method_compile = ((phase_subtotal == 0.0) ? 0.0 : phase_subtotal / Phase::_t_methodCompilation.seconds()) * 100.0;
   144   // counters inside Compile::CodeGen include time for adapters and stubs
   145   // so phase-total can be greater than 100%
   146   tty->print_cr ("    total        : %3.3f sec,  %3.2f %%", phase_subtotal, percent_of_method_compile);
   148   assert( percent_of_method_compile > expected_method_compile_coverage ||
   149           phase_subtotal < minimum_meaningful_method_compile,
   150           "Must account for method compilation");
   152   if( Phase::_t_temporaryTimer1.seconds() > minimum_reported_time ) {
   153     tty->cr();
   154     tty->print_cr ("    temporaryTimer1: %3.3f sec", Phase::_t_temporaryTimer1.seconds());
   155   }
   156   if( Phase::_t_temporaryTimer2.seconds() > minimum_reported_time ) {
   157     tty->cr();
   158     tty->print_cr ("    temporaryTimer2: %3.3f sec", Phase::_t_temporaryTimer2.seconds());
   159   }
   160   tty->print_cr ("    output    : %3.3f sec", Phase::_t_output.seconds());
   161   tty->print_cr ("      isched    : %3.3f sec", Phase::_t_instrSched.seconds());
   162   tty->print_cr ("      bldOopMaps: %3.3f sec", Phase::_t_buildOopMaps.seconds());
   163 }
   164 #endif

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