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src/share/vm/c1/c1_ValueSet.hpp@710a3c8b516e (annotated)
src/share/vm/c1/c1_ValueSet.hpp
Tue, 08 Aug 2017 15:57:29 +0800
- author
- aoqi
- date
- Tue, 08 Aug 2017 15:57:29 +0800
- changeset 6876
- 710a3c8b516e
- parent 2314
- f95d63e2154a
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #ifndef SHARE_VM_C1_C1_VALUESET_HPP |
| aoqi@0 | 26 | #define SHARE_VM_C1_C1_VALUESET_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "c1/c1_Instruction.hpp" |
| aoqi@0 | 29 | #include "memory/allocation.hpp" |
| aoqi@0 | 30 | #include "utilities/bitMap.inline.hpp" |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | // A ValueSet is a simple abstraction on top of a BitMap representing |
| aoqi@0 | 33 | // a set of Instructions. Currently it assumes that the number of |
| aoqi@0 | 34 | // instructions is fixed during its lifetime; should make it |
| aoqi@0 | 35 | // automatically resizable. |
| aoqi@0 | 36 | |
| aoqi@0 | 37 | class ValueSet: public CompilationResourceObj { |
| aoqi@0 | 38 | private: |
| aoqi@0 | 39 | BitMap _map; |
| aoqi@0 | 40 | |
| aoqi@0 | 41 | public: |
| aoqi@0 | 42 | ValueSet(); |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | ValueSet* copy(); |
| aoqi@0 | 45 | bool contains(Value x); |
| aoqi@0 | 46 | void put (Value x); |
| aoqi@0 | 47 | void remove (Value x); |
| aoqi@0 | 48 | bool set_intersect(ValueSet* other); |
| aoqi@0 | 49 | void set_union(ValueSet* other); |
| aoqi@0 | 50 | void clear (); |
| aoqi@0 | 51 | void set_from(ValueSet* other); |
| aoqi@0 | 52 | bool equals (ValueSet* other); |
| aoqi@0 | 53 | }; |
| aoqi@0 | 54 | |
| aoqi@0 | 55 | inline ValueSet::ValueSet() : _map(Instruction::number_of_instructions()) { |
| aoqi@0 | 56 | _map.clear(); |
| aoqi@0 | 57 | } |
| aoqi@0 | 58 | |
| aoqi@0 | 59 | |
| aoqi@0 | 60 | inline ValueSet* ValueSet::copy() { |
| aoqi@0 | 61 | ValueSet* res = new ValueSet(); |
| aoqi@0 | 62 | res->_map.set_from(_map); |
| aoqi@0 | 63 | return res; |
| aoqi@0 | 64 | } |
| aoqi@0 | 65 | |
| aoqi@0 | 66 | |
| aoqi@0 | 67 | inline bool ValueSet::contains(Value x) { |
| aoqi@0 | 68 | return _map.at(x->id()); |
| aoqi@0 | 69 | } |
| aoqi@0 | 70 | |
| aoqi@0 | 71 | |
| aoqi@0 | 72 | inline void ValueSet::put(Value x) { |
| aoqi@0 | 73 | _map.set_bit(x->id()); |
| aoqi@0 | 74 | } |
| aoqi@0 | 75 | |
| aoqi@0 | 76 | |
| aoqi@0 | 77 | inline void ValueSet::remove(Value x) { |
| aoqi@0 | 78 | _map.clear_bit(x->id()); |
| aoqi@0 | 79 | } |
| aoqi@0 | 80 | |
| aoqi@0 | 81 | |
| aoqi@0 | 82 | inline bool ValueSet::set_intersect(ValueSet* other) { |
| aoqi@0 | 83 | return _map.set_intersection_with_result(other->_map); |
| aoqi@0 | 84 | } |
| aoqi@0 | 85 | |
| aoqi@0 | 86 | |
| aoqi@0 | 87 | inline void ValueSet::set_union(ValueSet* other) { |
| aoqi@0 | 88 | _map.set_union(other->_map); |
| aoqi@0 | 89 | } |
| aoqi@0 | 90 | |
| aoqi@0 | 91 | |
| aoqi@0 | 92 | inline void ValueSet::clear() { |
| aoqi@0 | 93 | _map.clear(); |
| aoqi@0 | 94 | } |
| aoqi@0 | 95 | |
| aoqi@0 | 96 | inline void ValueSet::set_from(ValueSet* other) { |
| aoqi@0 | 97 | _map.set_from(other->_map); |
| aoqi@0 | 98 | } |
| aoqi@0 | 99 | |
| aoqi@0 | 100 | inline bool ValueSet::equals(ValueSet* other) { |
| aoqi@0 | 101 | return _map.is_same(other->_map); |
| aoqi@0 | 102 | } |
| aoqi@0 | 103 | |
| aoqi@0 | 104 | #endif // SHARE_VM_C1_C1_VALUESET_HPP |
