Mercurial > hg > graal-jvmci-8
annotate src/share/vm/opto/phase.hpp @ 1172:b2b6a9bf6238
6894779: Loop Predication for Loop Optimizer in C2
Summary: Loop predication implementation
Reviewed-by: never, kvn
author | cfang |
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date | Tue, 12 Jan 2010 14:37:35 -0800 |
parents | 7c57aead6d3e |
children | c18cbe5936b8 |
rev | line source |
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0 | 1 /* |
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2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. |
0 | 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 CFG, // Build a CFG | |
418 | 44 BlockLayout, // Linear ordering of blocks |
0 | 45 Register_Allocation, // Register allocation, duh |
46 LIVE, // Dragon-book LIVE range problem | |
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47 StringOpts, // StringBuilder related optimizations |
0 | 48 Interference_Graph, // Building the IFG |
49 Coalesce, // Coalescing copies | |
50 Ideal_Loop, // Find idealized trip-counted loops | |
51 Macro_Expand, // Expand macro nodes | |
52 Peephole, // Apply peephole optimizations | |
53 last_phase | |
54 }; | |
55 protected: | |
56 enum PhaseNumber _pnum; // Phase number (for stat gathering) | |
57 | |
58 #ifndef PRODUCT | |
59 static int _total_bytes_compiled; | |
60 | |
61 // accumulated timers | |
62 static elapsedTimer _t_totalCompilation; | |
63 static elapsedTimer _t_methodCompilation; | |
64 static elapsedTimer _t_stubCompilation; | |
65 #endif | |
66 | |
67 // The next timers used for LogCompilation | |
68 static elapsedTimer _t_parser; | |
69 static elapsedTimer _t_escapeAnalysis; | |
70 static elapsedTimer _t_optimizer; | |
71 static elapsedTimer _t_idealLoop; | |
72 static elapsedTimer _t_ccp; | |
73 static elapsedTimer _t_matcher; | |
74 static elapsedTimer _t_registerAllocation; | |
75 static elapsedTimer _t_output; | |
76 | |
77 #ifndef PRODUCT | |
78 static elapsedTimer _t_graphReshaping; | |
79 static elapsedTimer _t_scheduler; | |
418 | 80 static elapsedTimer _t_blockOrdering; |
0 | 81 static elapsedTimer _t_macroExpand; |
82 static elapsedTimer _t_peephole; | |
83 static elapsedTimer _t_codeGeneration; | |
84 static elapsedTimer _t_registerMethod; | |
85 static elapsedTimer _t_temporaryTimer1; | |
86 static elapsedTimer _t_temporaryTimer2; | |
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87 static elapsedTimer _t_idealLoopVerify; |
0 | 88 |
89 // Subtimers for _t_optimizer | |
90 static elapsedTimer _t_iterGVN; | |
91 static elapsedTimer _t_iterGVN2; | |
92 | |
93 // Subtimers for _t_registerAllocation | |
94 static elapsedTimer _t_ctorChaitin; | |
95 static elapsedTimer _t_buildIFGphysical; | |
96 static elapsedTimer _t_computeLive; | |
97 static elapsedTimer _t_regAllocSplit; | |
98 static elapsedTimer _t_postAllocCopyRemoval; | |
99 static elapsedTimer _t_fixupSpills; | |
100 | |
101 // Subtimers for _t_output | |
102 static elapsedTimer _t_instrSched; | |
103 static elapsedTimer _t_buildOopMaps; | |
104 #endif | |
105 public: | |
106 Compile * C; | |
107 Phase( PhaseNumber pnum ); | |
108 #ifndef PRODUCT | |
109 static void print_timers(); | |
110 #endif | |
111 }; |