Mercurial > hg > truffle

comparison src/share/vm/opto/phase.hpp @ 0:a61af66fc99e jdk7-b24

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children 72c5366e5d86
comparison
equal deleted inserted replaced
-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 1997-2005 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 */
24
25 class Compile;
26
27 //------------------------------Phase------------------------------------------
28 // Most optimizations are done in Phases. Creating a phase does any long
29 // running analysis required, and caches the analysis in internal data
30 // structures. Later the analysis is queried using transform() calls to
31 // guide transforming the program. When the Phase is deleted, so is any
32 // cached analysis info. This basic Phase class mostly contains timing and
33 // memory management code.
34 class Phase : public StackObj {
35 public:
36 enum PhaseNumber {
37 Compiler, // Top-level compiler phase
38 Parser, // Parse bytecodes
39 Remove_Useless, // Remove useless nodes
40 Optimistic, // Optimistic analysis phase
41 GVN, // Pessimistic global value numbering phase
42 Ins_Select, // Instruction selection phase
43 Copy_Elimination, // Copy Elimination
44 Dead_Code_Elimination, // DCE and compress Nodes
45 Conditional_Constant, // Conditional Constant Propagation
46 CFG, // Build a CFG
47 DefUse, // Build Def->Use chains
48 Register_Allocation, // Register allocation, duh
49 LIVE, // Dragon-book LIVE range problem
50 Interference_Graph, // Building the IFG
51 Coalesce, // Coalescing copies
52 Conditional_CProp, // Conditional Constant Propagation
53 Ideal_Loop, // Find idealized trip-counted loops
54 Macro_Expand, // Expand macro nodes
55 Peephole, // Apply peephole optimizations
56 last_phase
57 };
58 protected:
59 enum PhaseNumber _pnum; // Phase number (for stat gathering)
60
61 #ifndef PRODUCT
62 static int _total_bytes_compiled;
63
64 // accumulated timers
65 static elapsedTimer _t_totalCompilation;
66 static elapsedTimer _t_methodCompilation;
67 static elapsedTimer _t_stubCompilation;
68 #endif
69
70 // The next timers used for LogCompilation
71 static elapsedTimer _t_parser;
72 static elapsedTimer _t_escapeAnalysis;
73 static elapsedTimer _t_optimizer;
74 static elapsedTimer _t_idealLoop;
75 static elapsedTimer _t_ccp;
76 static elapsedTimer _t_matcher;
77 static elapsedTimer _t_registerAllocation;
78 static elapsedTimer _t_output;
79
80 #ifndef PRODUCT
81 static elapsedTimer _t_graphReshaping;
82 static elapsedTimer _t_scheduler;
83 static elapsedTimer _t_removeEmptyBlocks;
84 static elapsedTimer _t_macroExpand;
85 static elapsedTimer _t_peephole;
86 static elapsedTimer _t_codeGeneration;
87 static elapsedTimer _t_registerMethod;
88 static elapsedTimer _t_temporaryTimer1;
89 static elapsedTimer _t_temporaryTimer2;
90
91 // Subtimers for _t_optimizer
92 static elapsedTimer _t_iterGVN;
93 static elapsedTimer _t_iterGVN2;
94
95 // Subtimers for _t_registerAllocation
96 static elapsedTimer _t_ctorChaitin;
97 static elapsedTimer _t_buildIFGphysical;
98 static elapsedTimer _t_computeLive;
99 static elapsedTimer _t_regAllocSplit;
100 static elapsedTimer _t_postAllocCopyRemoval;
101 static elapsedTimer _t_fixupSpills;
102
103 // Subtimers for _t_output
104 static elapsedTimer _t_instrSched;
105 static elapsedTimer _t_buildOopMaps;
106 #endif
107 public:
108 Compile * C;
109 Phase( PhaseNumber pnum );
110 #ifndef PRODUCT
111 static void print_timers();
112 #endif
113 };