jdk8-mips64-public/hotspot: src/share/vm/opto/phase.hpp@70649f10b88c

8129847: Compiling methods generated by Nashorn triggers high memory usage in C2
Summary: Add a new compiler phase, PhaseRenumberLive, that renumbers live nodes.
Reviewed-by: kvn, thartmann, vlivanov, shade

     1 /*

     2  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_OPTO_PHASE_HPP

    26 #define SHARE_VM_OPTO_PHASE_HPP

    28 #include "libadt/port.hpp"

    29 #include "runtime/timer.hpp"

    31 class Compile;

    33 //------------------------------Phase------------------------------------------

    34 // Most optimizations are done in Phases.  Creating a phase does any long

    35 // running analysis required, and caches the analysis in internal data

    36 // structures.  Later the analysis is queried using transform() calls to

    37 // guide transforming the program.  When the Phase is deleted, so is any

    38 // cached analysis info.  This basic Phase class mostly contains timing and

    39 // memory management code.

    40 class Phase : public StackObj {

    41 public:

    42   enum PhaseNumber {

    43     Compiler,                         // Top-level compiler phase

    44     Parser,                           // Parse bytecodes

    45     Remove_Useless,                   // Remove useless nodes

    46     Remove_Useless_And_Renumber_Live, // First, remove useless nodes from the graph. Then, renumber live nodes.

    47     Optimistic,                       // Optimistic analysis phase

    48     GVN,                              // Pessimistic global value numbering phase

    49     Ins_Select,                       // Instruction selection phase

    50     CFG,                              // Build a CFG

    51     BlockLayout,                      // Linear ordering of blocks

    52     Register_Allocation,              // Register allocation, duh

    53     LIVE,                             // Dragon-book LIVE range problem

    54     StringOpts,                       // StringBuilder related optimizations

    55     Interference_Graph,               // Building the IFG

    56     Coalesce,                         // Coalescing copies

    57     Ideal_Loop,                       // Find idealized trip-counted loops

    58     Macro_Expand,                     // Expand macro nodes

    59     Peephole,                         // Apply peephole optimizations

    60     last_phase

    61   };

    62 protected:

    63   enum PhaseNumber _pnum;       // Phase number (for stat gathering)

    65 #ifndef PRODUCT

    66   static int _total_bytes_compiled;

    68   // accumulated timers

    69   static elapsedTimer _t_totalCompilation;

    70   static elapsedTimer _t_methodCompilation;

    71   static elapsedTimer _t_stubCompilation;

    72 #endif

    74 // The next timers used for LogCompilation

    75   static elapsedTimer _t_parser;

    76   static elapsedTimer _t_optimizer;

    77 public:

    78   // ConnectionGraph can't be Phase since it is used after EA done.

    79   static elapsedTimer   _t_escapeAnalysis;

    80   static elapsedTimer     _t_connectionGraph;

    81 protected:

    82   static elapsedTimer   _t_idealLoop;

    83   static elapsedTimer   _t_ccp;

    84   static elapsedTimer _t_matcher;

    85   static elapsedTimer _t_registerAllocation;

    86   static elapsedTimer _t_output;

    88 #ifndef PRODUCT

    89   static elapsedTimer _t_graphReshaping;

    90   static elapsedTimer _t_scheduler;

    91   static elapsedTimer _t_blockOrdering;

    92   static elapsedTimer _t_macroEliminate;

    93   static elapsedTimer _t_macroExpand;

    94   static elapsedTimer _t_peephole;

    95   static elapsedTimer _t_postalloc_expand;

    96   static elapsedTimer _t_codeGeneration;

    97   static elapsedTimer _t_registerMethod;

    98   static elapsedTimer _t_temporaryTimer1;

    99   static elapsedTimer _t_temporaryTimer2;

   100   static elapsedTimer _t_idealLoopVerify;

   102 // Subtimers for _t_optimizer

   103   static elapsedTimer   _t_iterGVN;

   104   static elapsedTimer   _t_iterGVN2;

   105   static elapsedTimer   _t_incrInline;

   106   static elapsedTimer   _t_renumberLive;

   108 // Subtimers for _t_registerAllocation

   109   static elapsedTimer   _t_ctorChaitin;

   110   static elapsedTimer   _t_buildIFGphysical;

   111   static elapsedTimer   _t_computeLive;

   112   static elapsedTimer   _t_regAllocSplit;

   113   static elapsedTimer   _t_postAllocCopyRemoval;

   114   static elapsedTimer   _t_mergeMultidefs;

   115   static elapsedTimer   _t_fixupSpills;

   117 // Subtimers for _t_output

   118   static elapsedTimer   _t_instrSched;

   119   static elapsedTimer   _t_buildOopMaps;

   120 #endif

   121 public:

   122   Compile * C;

   123   Phase( PhaseNumber pnum );

   124 #ifndef PRODUCT

   125   static void print_timers();

   126 #endif

   127 };

   129 #endif // SHARE_VM_OPTO_PHASE_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/opto/phase.hpp@70649f10b88c

src/share/vm/opto/phase.hpp