111 lines
4.1 KiB
C++
111 lines
4.1 KiB
C++
/*
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* Copyright 1997-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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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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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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