Mercurial > hg > truffle
annotate src/share/vm/interpreter/bytecodeHistogram.hpp @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
author | jrose |
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date | Sat, 30 Oct 2010 13:08:23 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2004, Oracle and/or its affiliates. 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // BytecodeCounter counts the number of bytecodes executed | |
26 | |
27 class BytecodeCounter: AllStatic { | |
28 private: | |
29 NOT_PRODUCT(static int _counter_value;) | |
30 NOT_PRODUCT(static jlong _reset_time;) | |
31 | |
32 friend class TemplateInterpreterGenerator; | |
33 friend class BytecodeInterpreter; | |
34 | |
35 public: | |
36 // Initialization | |
37 static void reset() PRODUCT_RETURN; | |
38 | |
39 // Counter info (all info since last reset) | |
40 static int counter_value() PRODUCT_RETURN0 NOT_PRODUCT({ return _counter_value; }); | |
41 static double elapsed_time() PRODUCT_RETURN0; // in seconds | |
42 static double frequency() PRODUCT_RETURN0; // bytecodes/seconds | |
43 | |
44 // Counter printing | |
45 static void print() PRODUCT_RETURN; | |
46 }; | |
47 | |
48 | |
49 // BytecodeHistogram collects number of executions of bytecodes | |
50 | |
51 class BytecodeHistogram: AllStatic { | |
52 private: | |
53 NOT_PRODUCT(static int _counters[Bytecodes::number_of_codes];) // a counter for each bytecode | |
54 | |
55 friend class TemplateInterpreterGenerator; | |
56 friend class InterpreterGenerator; | |
57 friend class BytecodeInterpreter; | |
58 | |
59 public: | |
60 // Initialization | |
61 static void reset() PRODUCT_RETURN; // reset counters | |
62 | |
63 // Profile printing | |
64 static void print(float cutoff = 0.01F) PRODUCT_RETURN; // cutoff in percent | |
65 }; | |
66 | |
67 | |
68 // BytecodePairHistogram collects number of executions of bytecode pairs. | |
69 // A bytecode pair is any sequence of two consequtive bytecodes. | |
70 | |
71 class BytecodePairHistogram: AllStatic { | |
72 public: // for SparcWorks | |
73 enum Constants { | |
74 log2_number_of_codes = 8, // use a power of 2 for faster addressing | |
75 number_of_codes = 1 << log2_number_of_codes, // must be no less than Bytecodes::number_of_codes | |
76 number_of_pairs = number_of_codes * number_of_codes | |
77 }; | |
78 | |
79 private: | |
80 NOT_PRODUCT(static int _index;) // new bytecode is shifted in - used to index into _counters | |
81 NOT_PRODUCT(static int _counters[number_of_pairs];) // a counter for each pair | |
82 | |
83 friend class TemplateInterpreterGenerator; | |
84 friend class InterpreterGenerator; | |
85 | |
86 public: | |
87 // Initialization | |
88 static void reset() PRODUCT_RETURN; // reset counters | |
89 | |
90 // Profile printing | |
91 static void print(float cutoff = 0.01F) PRODUCT_RETURN; // cutoff in percent | |
92 }; |