Mercurial > hg > truffle
annotate src/share/vm/c1/c1_ValueSet.hpp @ 1764:14197af1010e
Merge
author | never |
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date | Fri, 27 Aug 2010 17:35:08 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2001, 2005, 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
6941466: Oracle rebranding changes for Hotspot repositories
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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 // A ValueSet is a simple abstraction on top of a BitMap representing | |
26 // a set of Instructions. Currently it assumes that the number of | |
27 // instructions is fixed during its lifetime; should make it | |
28 // automatically resizable. | |
29 | |
30 class ValueSet: public CompilationResourceObj { | |
31 private: | |
32 BitMap _map; | |
33 | |
34 public: | |
35 ValueSet(); | |
36 | |
37 ValueSet* copy(); | |
38 bool contains(Value x); | |
39 void put (Value x); | |
40 void remove (Value x); | |
41 bool set_intersect(ValueSet* other); | |
42 void set_union(ValueSet* other); | |
43 void clear (); | |
44 void set_from(ValueSet* other); | |
45 bool equals (ValueSet* other); | |
46 }; | |
47 | |
48 inline ValueSet::ValueSet() : _map(Instruction::number_of_instructions()) { | |
49 _map.clear(); | |
50 } | |
51 | |
52 | |
53 inline ValueSet* ValueSet::copy() { | |
54 ValueSet* res = new ValueSet(); | |
55 res->_map.set_from(_map); | |
56 return res; | |
57 } | |
58 | |
59 | |
60 inline bool ValueSet::contains(Value x) { | |
61 return _map.at(x->id()); | |
62 } | |
63 | |
64 | |
65 inline void ValueSet::put(Value x) { | |
66 _map.set_bit(x->id()); | |
67 } | |
68 | |
69 | |
70 inline void ValueSet::remove(Value x) { | |
71 _map.clear_bit(x->id()); | |
72 } | |
73 | |
74 | |
75 inline bool ValueSet::set_intersect(ValueSet* other) { | |
76 return _map.set_intersection_with_result(other->_map); | |
77 } | |
78 | |
79 | |
80 inline void ValueSet::set_union(ValueSet* other) { | |
81 _map.set_union(other->_map); | |
82 } | |
83 | |
84 | |
85 inline void ValueSet::clear() { | |
86 _map.clear(); | |
87 } | |
88 | |
89 inline void ValueSet::set_from(ValueSet* other) { | |
90 _map.set_from(other->_map); | |
91 } | |
92 | |
93 inline bool ValueSet::equals(ValueSet* other) { | |
94 return _map.is_same(other->_map); | |
95 } |