author | kamg |
Thu, 29 Mar 2012 18:55:32 -0400 | |
changeset 12981 | b557c10f5444 |
parent 7397 | 5b173b4ca846 |
child 12158 | f24f2560da32 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#ifndef SHARE_VM_OPTO_PHASE_HPP |
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#define SHARE_VM_OPTO_PHASE_HPP |
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#include "libadt/port.hpp" |
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#include "runtime/timer.hpp" |
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class Compile; |
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//------------------------------Phase------------------------------------------ |
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// Most optimizations are done in Phases. Creating a phase does any long |
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// running analysis required, and caches the analysis in internal data |
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// structures. Later the analysis is queried using transform() calls to |
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// guide transforming the program. When the Phase is deleted, so is any |
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// cached analysis info. This basic Phase class mostly contains timing and |
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// memory management code. |
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class Phase : public StackObj { |
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public: |
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enum PhaseNumber { |
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Compiler, // Top-level compiler phase |
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Parser, // Parse bytecodes |
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Remove_Useless, // Remove useless nodes |
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Optimistic, // Optimistic analysis phase |
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GVN, // Pessimistic global value numbering phase |
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Ins_Select, // Instruction selection phase |
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CFG, // Build a CFG |
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BlockLayout, // Linear ordering of blocks |
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Register_Allocation, // Register allocation, duh |
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LIVE, // Dragon-book LIVE range problem |
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StringOpts, // StringBuilder related optimizations |
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Interference_Graph, // Building the IFG |
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Coalesce, // Coalescing copies |
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Ideal_Loop, // Find idealized trip-counted loops |
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Macro_Expand, // Expand macro nodes |
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Peephole, // Apply peephole optimizations |
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last_phase |
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}; |
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protected: |
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enum PhaseNumber _pnum; // Phase number (for stat gathering) |
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#ifndef PRODUCT |
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static int _total_bytes_compiled; |
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// accumulated timers |
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static elapsedTimer _t_totalCompilation; |
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static elapsedTimer _t_methodCompilation; |
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static elapsedTimer _t_stubCompilation; |
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#endif |
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// The next timers used for LogCompilation |
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static elapsedTimer _t_parser; |
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static elapsedTimer _t_escapeAnalysis; |
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static elapsedTimer _t_optimizer; |
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static elapsedTimer _t_idealLoop; |
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static elapsedTimer _t_ccp; |
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static elapsedTimer _t_matcher; |
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static elapsedTimer _t_registerAllocation; |
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static elapsedTimer _t_output; |
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#ifndef PRODUCT |
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static elapsedTimer _t_graphReshaping; |
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static elapsedTimer _t_scheduler; |
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static elapsedTimer _t_blockOrdering; |
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static elapsedTimer _t_macroExpand; |
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static elapsedTimer _t_peephole; |
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static elapsedTimer _t_codeGeneration; |
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static elapsedTimer _t_registerMethod; |
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static elapsedTimer _t_temporaryTimer1; |
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static elapsedTimer _t_temporaryTimer2; |
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static elapsedTimer _t_idealLoopVerify; |
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// Subtimers for _t_optimizer |
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static elapsedTimer _t_iterGVN; |
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static elapsedTimer _t_iterGVN2; |
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// Subtimers for _t_registerAllocation |
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static elapsedTimer _t_ctorChaitin; |
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static elapsedTimer _t_buildIFGphysical; |
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static elapsedTimer _t_computeLive; |
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static elapsedTimer _t_regAllocSplit; |
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static elapsedTimer _t_postAllocCopyRemoval; |
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static elapsedTimer _t_fixupSpills; |
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// Subtimers for _t_output |
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static elapsedTimer _t_instrSched; |
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static elapsedTimer _t_buildOopMaps; |
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#endif |
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public: |
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Compile * C; |
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Phase( PhaseNumber pnum ); |
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#ifndef PRODUCT |
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static void print_timers(); |
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#endif |
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}; |
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#endif // SHARE_VM_OPTO_PHASE_HPP |