Mercurial > hg > graal-compiler
annotate src/share/vm/ci/ciObjectFactory.hpp @ 1766:02f0a9b6f654
6969586: OptimizeStringConcat: SIGSEGV in LoadNode::Value()
Reviewed-by: kvn
author | never |
---|---|
date | Mon, 30 Aug 2010 17:27:35 -0700 |
parents | 136b78722a08 |
children | 2d26b0046e0d f95d63e2154a |
rev | line source |
---|---|
0 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
2 * Copyright (c) 1999, 2007, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // ciObjectFactory | |
26 // | |
27 // This class handles requests for the creation of new instances | |
28 // of ciObject and its subclasses. It contains a caching mechanism | |
29 // which ensures that for each oop, at most one ciObject is created. | |
30 // This invariant allows efficient implementation of ciObject. | |
31 class ciObjectFactory : public ResourceObj { | |
32 private: | |
33 static volatile bool _initialized; | |
34 static GrowableArray<ciObject*>* _shared_ci_objects; | |
35 static ciSymbol* _shared_ci_symbols[]; | |
36 static int _shared_ident_limit; | |
37 | |
38 Arena* _arena; | |
39 GrowableArray<ciObject*>* _ci_objects; | |
40 GrowableArray<ciMethod*>* _unloaded_methods; | |
41 GrowableArray<ciKlass*>* _unloaded_klasses; | |
1602 | 42 GrowableArray<ciInstance*>* _unloaded_instances; |
0 | 43 GrowableArray<ciReturnAddress*>* _return_addresses; |
44 int _next_ident; | |
45 | |
46 public: | |
47 struct NonPermObject : public ResourceObj { | |
48 ciObject* _object; | |
49 NonPermObject* _next; | |
50 | |
51 inline NonPermObject(NonPermObject* &bucket, oop key, ciObject* object); | |
52 ciObject* object() { return _object; } | |
53 NonPermObject* &next() { return _next; } | |
54 }; | |
55 private: | |
56 enum { NON_PERM_BUCKETS = 61 }; | |
57 NonPermObject* _non_perm_bucket[NON_PERM_BUCKETS]; | |
58 int _non_perm_count; | |
59 | |
60 int find(oop key, GrowableArray<ciObject*>* objects); | |
61 bool is_found_at(int index, oop key, GrowableArray<ciObject*>* objects); | |
62 void insert(int index, ciObject* obj, GrowableArray<ciObject*>* objects); | |
63 ciObject* create_new_object(oop o); | |
64 static bool is_equal(NonPermObject* p, oop key) { | |
65 return p->object()->get_oop() == key; | |
66 } | |
67 | |
68 NonPermObject* &find_non_perm(oop key); | |
69 void insert_non_perm(NonPermObject* &where, oop key, ciObject* obj); | |
70 | |
71 void init_ident_of(ciObject* obj); | |
72 | |
73 Arena* arena() { return _arena; } | |
74 | |
75 void print_contents_impl(); | |
76 | |
1602 | 77 ciInstance* get_unloaded_instance(ciInstanceKlass* klass); |
78 | |
0 | 79 public: |
80 static bool is_initialized() { return _initialized; } | |
81 | |
82 static void initialize(); | |
83 void init_shared_objects(); | |
84 | |
85 ciObjectFactory(Arena* arena, int expected_size); | |
86 | |
87 | |
88 // Get the ciObject corresponding to some oop. | |
89 ciObject* get(oop key); | |
90 | |
91 // Get the ciSymbol corresponding to one of the vmSymbols. | |
92 static ciSymbol* vm_symbol_at(int index); | |
93 | |
94 // Get the ciMethod representing an unloaded/unfound method. | |
95 ciMethod* get_unloaded_method(ciInstanceKlass* holder, | |
96 ciSymbol* name, | |
97 ciSymbol* signature); | |
98 | |
99 // Get a ciKlass representing an unloaded klass. | |
100 ciKlass* get_unloaded_klass(ciKlass* accessing_klass, | |
101 ciSymbol* name, | |
102 bool create_if_not_found); | |
103 | |
1602 | 104 // Get a ciInstance representing an unresolved klass mirror. |
105 ciInstance* get_unloaded_klass_mirror(ciKlass* type); | |
106 | |
107 // Get a ciInstance representing an unresolved method handle constant. | |
108 ciInstance* get_unloaded_method_handle_constant(ciKlass* holder, | |
109 ciSymbol* name, | |
110 ciSymbol* signature, | |
111 int ref_kind); | |
112 | |
113 // Get a ciInstance representing an unresolved method type constant. | |
114 ciInstance* get_unloaded_method_type_constant(ciSymbol* signature); | |
115 | |
0 | 116 |
117 // Get the ciMethodData representing the methodData for a method | |
118 // with none. | |
119 ciMethodData* get_empty_methodData(); | |
120 | |
121 ciReturnAddress* get_return_address(int bci); | |
122 | |
123 void print_contents(); | |
124 void print(); | |
125 }; |