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annotate src/share/vm/c1/c1_ValueSet.hpp @ 4724:0841c0ec2ed6
7123810: new hotspot build - hs23-b10
Reviewed-by: jcoomes
author | amurillo |
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date | Fri, 23 Dec 2011 15:29:34 -0800 |
parents | f95d63e2154a |
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rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2001, 2010, 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 |
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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 | |
1972 | 25 #ifndef SHARE_VM_C1_C1_VALUESET_HPP |
26 #define SHARE_VM_C1_C1_VALUESET_HPP | |
27 | |
28 #include "c1/c1_Instruction.hpp" | |
29 #include "memory/allocation.hpp" | |
30 #include "utilities/bitMap.inline.hpp" | |
31 | |
0 | 32 // A ValueSet is a simple abstraction on top of a BitMap representing |
33 // a set of Instructions. Currently it assumes that the number of | |
34 // instructions is fixed during its lifetime; should make it | |
35 // automatically resizable. | |
36 | |
37 class ValueSet: public CompilationResourceObj { | |
38 private: | |
39 BitMap _map; | |
40 | |
41 public: | |
42 ValueSet(); | |
43 | |
44 ValueSet* copy(); | |
45 bool contains(Value x); | |
46 void put (Value x); | |
47 void remove (Value x); | |
48 bool set_intersect(ValueSet* other); | |
49 void set_union(ValueSet* other); | |
50 void clear (); | |
51 void set_from(ValueSet* other); | |
52 bool equals (ValueSet* other); | |
53 }; | |
54 | |
55 inline ValueSet::ValueSet() : _map(Instruction::number_of_instructions()) { | |
56 _map.clear(); | |
57 } | |
58 | |
59 | |
60 inline ValueSet* ValueSet::copy() { | |
61 ValueSet* res = new ValueSet(); | |
62 res->_map.set_from(_map); | |
63 return res; | |
64 } | |
65 | |
66 | |
67 inline bool ValueSet::contains(Value x) { | |
68 return _map.at(x->id()); | |
69 } | |
70 | |
71 | |
72 inline void ValueSet::put(Value x) { | |
73 _map.set_bit(x->id()); | |
74 } | |
75 | |
76 | |
77 inline void ValueSet::remove(Value x) { | |
78 _map.clear_bit(x->id()); | |
79 } | |
80 | |
81 | |
82 inline bool ValueSet::set_intersect(ValueSet* other) { | |
83 return _map.set_intersection_with_result(other->_map); | |
84 } | |
85 | |
86 | |
87 inline void ValueSet::set_union(ValueSet* other) { | |
88 _map.set_union(other->_map); | |
89 } | |
90 | |
91 | |
92 inline void ValueSet::clear() { | |
93 _map.clear(); | |
94 } | |
95 | |
96 inline void ValueSet::set_from(ValueSet* other) { | |
97 _map.set_from(other->_map); | |
98 } | |
99 | |
100 inline bool ValueSet::equals(ValueSet* other) { | |
101 return _map.is_same(other->_map); | |
102 } | |
1972 | 103 |
104 #endif // SHARE_VM_C1_C1_VALUESET_HPP |