Mercurial > hg > graal-compiler
annotate src/share/vm/utilities/accessFlags.hpp @ 1662:e0ba4e04c839
6969574: invokedynamic call sites deoptimize instead of executing
Reviewed-by: kvn
author | jrose |
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date | Fri, 16 Jul 2010 18:14:19 -0700 |
parents | c18cbe5936b8 |
children | d5d065957597 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
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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). | |
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15 * You should have received a copy of the GNU General Public License version | |
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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 | |
25 // AccessFlags is an abstraction over Java access flags. | |
26 | |
27 | |
28 enum { | |
29 // See jvm.h for shared JVM_ACC_XXX access flags | |
30 | |
31 // HotSpot-specific access flags | |
32 | |
33 // flags actually put in .class file | |
34 JVM_ACC_WRITTEN_FLAGS = 0x00007FFF, | |
35 | |
36 // methodOop flags | |
37 JVM_ACC_MONITOR_MATCH = 0x10000000, // True if we know that monitorenter/monitorexit bytecodes match | |
38 JVM_ACC_HAS_MONITOR_BYTECODES = 0x20000000, // Method contains monitorenter/monitorexit bytecodes | |
39 JVM_ACC_HAS_LOOPS = 0x40000000, // Method has loops | |
40 JVM_ACC_LOOPS_FLAG_INIT = (int)0x80000000,// The loop flag has been initialized | |
41 JVM_ACC_QUEUED = 0x01000000, // Queued for compilation | |
42 JVM_ACC_NOT_TIER1_COMPILABLE = 0x04000000, | |
43 JVM_ACC_NOT_OSR_COMPILABLE = 0x08000000, | |
44 JVM_ACC_HAS_LINE_NUMBER_TABLE = 0x00100000, | |
45 JVM_ACC_HAS_CHECKED_EXCEPTIONS = 0x00400000, | |
46 JVM_ACC_HAS_JSRS = 0x00800000, | |
47 JVM_ACC_IS_OLD = 0x00010000, // RedefineClasses() has replaced this method | |
48 JVM_ACC_IS_OBSOLETE = 0x00020000, // RedefineClasses() has made method obsolete | |
49 JVM_ACC_IS_PREFIXED_NATIVE = 0x00040000, // JVMTI has prefixed this native method | |
710 | 50 JVM_MH_INVOKE_BITS // = 0x10001100 // MethodHandle.invoke quasi-native |
51 = (JVM_ACC_NATIVE | JVM_ACC_SYNTHETIC | JVM_ACC_MONITOR_MATCH), | |
0 | 52 |
53 // klassOop flags | |
54 JVM_ACC_HAS_MIRANDA_METHODS = 0x10000000, // True if this class has miranda methods in it's vtable | |
55 JVM_ACC_HAS_VANILLA_CONSTRUCTOR = 0x20000000, // True if klass has a vanilla default constructor | |
56 JVM_ACC_HAS_FINALIZER = 0x40000000, // True if klass has a non-empty finalize() method | |
57 JVM_ACC_IS_CLONEABLE = (int)0x80000000,// True if klass supports the Clonable interface | |
58 JVM_ACC_HAS_FINAL_METHOD = 0x01000000, // True if klass has final method | |
59 | |
60 // klassOop and methodOop flags | |
61 JVM_ACC_HAS_LOCAL_VARIABLE_TABLE= 0x00200000, | |
62 | |
63 JVM_ACC_PROMOTED_FLAGS = 0x00200000, // flags promoted from methods to the holding klass | |
64 | |
65 // field flags | |
66 // Note: these flags must be defined in the low order 16 bits because | |
67 // instanceKlass only stores a ushort worth of information from the | |
68 // AccessFlags value. | |
69 // These bits must not conflict with any other field-related access flags | |
70 // (e.g., ACC_ENUM). | |
71 // Note that the class-related ACC_ANNOTATION bit conflicts with these flags. | |
72 JVM_ACC_FIELD_ACCESS_WATCHED = 0x00002000, // field access is watched by JVMTI | |
73 JVM_ACC_FIELD_MODIFICATION_WATCHED = 0x00008000, // field modification is watched by JVMTI | |
74 | |
75 // flags accepted by set_field_flags() | |
76 JVM_ACC_FIELD_FLAGS = 0x00008000 | JVM_ACC_WRITTEN_FLAGS | |
710 | 77 |
0 | 78 }; |
79 | |
80 | |
81 class AccessFlags VALUE_OBJ_CLASS_SPEC { | |
82 friend class VMStructs; | |
83 private: | |
84 jint _flags; | |
85 | |
86 public: | |
87 // Java access flags | |
88 bool is_public () const { return (_flags & JVM_ACC_PUBLIC ) != 0; } | |
89 bool is_private () const { return (_flags & JVM_ACC_PRIVATE ) != 0; } | |
90 bool is_protected () const { return (_flags & JVM_ACC_PROTECTED ) != 0; } | |
91 bool is_static () const { return (_flags & JVM_ACC_STATIC ) != 0; } | |
92 bool is_final () const { return (_flags & JVM_ACC_FINAL ) != 0; } | |
93 bool is_synchronized() const { return (_flags & JVM_ACC_SYNCHRONIZED) != 0; } | |
94 bool is_super () const { return (_flags & JVM_ACC_SUPER ) != 0; } | |
95 bool is_volatile () const { return (_flags & JVM_ACC_VOLATILE ) != 0; } | |
96 bool is_transient () const { return (_flags & JVM_ACC_TRANSIENT ) != 0; } | |
97 bool is_native () const { return (_flags & JVM_ACC_NATIVE ) != 0; } | |
98 bool is_interface () const { return (_flags & JVM_ACC_INTERFACE ) != 0; } | |
99 bool is_abstract () const { return (_flags & JVM_ACC_ABSTRACT ) != 0; } | |
100 bool is_strict () const { return (_flags & JVM_ACC_STRICT ) != 0; } | |
101 | |
102 // Attribute flags | |
103 bool is_synthetic () const { return (_flags & JVM_ACC_SYNTHETIC ) != 0; } | |
104 | |
105 // methodOop flags | |
106 bool is_monitor_matching () const { return (_flags & JVM_ACC_MONITOR_MATCH ) != 0; } | |
107 bool has_monitor_bytecodes () const { return (_flags & JVM_ACC_HAS_MONITOR_BYTECODES ) != 0; } | |
108 bool has_loops () const { return (_flags & JVM_ACC_HAS_LOOPS ) != 0; } | |
109 bool loops_flag_init () const { return (_flags & JVM_ACC_LOOPS_FLAG_INIT ) != 0; } | |
110 bool queued_for_compilation () const { return (_flags & JVM_ACC_QUEUED ) != 0; } | |
111 bool is_not_tier1_compilable () const { return (_flags & JVM_ACC_NOT_TIER1_COMPILABLE ) != 0; } | |
112 bool is_not_osr_compilable () const { return (_flags & JVM_ACC_NOT_OSR_COMPILABLE ) != 0; } | |
113 bool has_linenumber_table () const { return (_flags & JVM_ACC_HAS_LINE_NUMBER_TABLE ) != 0; } | |
114 bool has_checked_exceptions () const { return (_flags & JVM_ACC_HAS_CHECKED_EXCEPTIONS ) != 0; } | |
115 bool has_jsrs () const { return (_flags & JVM_ACC_HAS_JSRS ) != 0; } | |
116 bool is_old () const { return (_flags & JVM_ACC_IS_OLD ) != 0; } | |
117 bool is_obsolete () const { return (_flags & JVM_ACC_IS_OBSOLETE ) != 0; } | |
118 bool is_prefixed_native () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE ) != 0; } | |
119 | |
710 | 120 // JSR 292: A method of the form MethodHandle.invoke(A...)R method is |
121 // neither bytecoded nor a JNI native, but rather a fast call through | |
122 // a lightweight method handle object. Because it is not bytecoded, | |
123 // it has the native bit set, but the monitor-match bit is also set | |
124 // to distinguish it from a JNI native (which never has the match bit set). | |
125 // The synthetic bit is also present, because such a method is never | |
126 // explicitly defined in Java code. | |
127 bool is_method_handle_invoke () const { return (_flags & JVM_MH_INVOKE_BITS) == JVM_MH_INVOKE_BITS; } | |
128 | |
0 | 129 // klassOop flags |
130 bool has_miranda_methods () const { return (_flags & JVM_ACC_HAS_MIRANDA_METHODS ) != 0; } | |
131 bool has_vanilla_constructor () const { return (_flags & JVM_ACC_HAS_VANILLA_CONSTRUCTOR) != 0; } | |
132 bool has_finalizer () const { return (_flags & JVM_ACC_HAS_FINALIZER ) != 0; } | |
133 bool has_final_method () const { return (_flags & JVM_ACC_HAS_FINAL_METHOD ) != 0; } | |
134 bool is_cloneable () const { return (_flags & JVM_ACC_IS_CLONEABLE ) != 0; } | |
135 // klassOop and methodOop flags | |
136 bool has_localvariable_table () const { return (_flags & JVM_ACC_HAS_LOCAL_VARIABLE_TABLE) != 0; } | |
137 void set_has_localvariable_table() { atomic_set_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); } | |
138 void clear_has_localvariable_table() { atomic_clear_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); } | |
139 | |
140 // field flags | |
141 bool is_field_access_watched() const { return (_flags & JVM_ACC_FIELD_ACCESS_WATCHED) != 0; } | |
142 bool is_field_modification_watched() const | |
143 { return (_flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; } | |
144 | |
145 // get .class file flags | |
146 jint get_flags () const { return (_flags & JVM_ACC_WRITTEN_FLAGS); } | |
147 | |
148 // Initialization | |
149 void add_promoted_flags(jint flags) { _flags |= (flags & JVM_ACC_PROMOTED_FLAGS); } | |
150 void set_field_flags(jint flags) { _flags = (flags & JVM_ACC_FIELD_FLAGS); } | |
151 void set_flags(jint flags) { _flags = (flags & JVM_ACC_WRITTEN_FLAGS); } | |
152 | |
153 void set_queued_for_compilation() { atomic_set_bits(JVM_ACC_QUEUED); } | |
154 void clear_queued_for_compilation() { atomic_clear_bits(JVM_ACC_QUEUED); } | |
155 | |
156 // Atomic update of flags | |
157 void atomic_set_bits(jint bits); | |
158 void atomic_clear_bits(jint bits); | |
159 | |
160 private: | |
161 friend class methodOopDesc; | |
162 friend class Klass; | |
163 friend class ClassFileParser; | |
164 // the functions below should only be called on the _access_flags inst var directly, | |
165 // otherwise they are just changing a copy of the flags | |
166 | |
167 // attribute flags | |
168 void set_is_synthetic() { atomic_set_bits(JVM_ACC_SYNTHETIC); } | |
169 | |
170 // methodOop flags | |
171 void set_monitor_matching() { atomic_set_bits(JVM_ACC_MONITOR_MATCH); } | |
172 void set_has_monitor_bytecodes() { atomic_set_bits(JVM_ACC_HAS_MONITOR_BYTECODES); } | |
173 void set_has_loops() { atomic_set_bits(JVM_ACC_HAS_LOOPS); } | |
174 void set_loops_flag_init() { atomic_set_bits(JVM_ACC_LOOPS_FLAG_INIT); } | |
175 void set_not_tier1_compilable() { atomic_set_bits(JVM_ACC_NOT_TIER1_COMPILABLE); } | |
176 void set_not_osr_compilable() { atomic_set_bits(JVM_ACC_NOT_OSR_COMPILABLE); } | |
177 void set_has_linenumber_table() { atomic_set_bits(JVM_ACC_HAS_LINE_NUMBER_TABLE); } | |
178 void set_has_checked_exceptions() { atomic_set_bits(JVM_ACC_HAS_CHECKED_EXCEPTIONS); } | |
179 void set_has_jsrs() { atomic_set_bits(JVM_ACC_HAS_JSRS); } | |
180 void set_is_old() { atomic_set_bits(JVM_ACC_IS_OLD); } | |
181 void set_is_obsolete() { atomic_set_bits(JVM_ACC_IS_OBSOLETE); } | |
182 void set_is_prefixed_native() { atomic_set_bits(JVM_ACC_IS_PREFIXED_NATIVE); } | |
183 | |
184 // klassOop flags | |
185 void set_has_vanilla_constructor() { atomic_set_bits(JVM_ACC_HAS_VANILLA_CONSTRUCTOR); } | |
186 void set_has_finalizer() { atomic_set_bits(JVM_ACC_HAS_FINALIZER); } | |
187 void set_has_final_method() { atomic_set_bits(JVM_ACC_HAS_FINAL_METHOD); } | |
188 void set_is_cloneable() { atomic_set_bits(JVM_ACC_IS_CLONEABLE); } | |
189 void set_has_miranda_methods() { atomic_set_bits(JVM_ACC_HAS_MIRANDA_METHODS); } | |
190 | |
191 public: | |
192 // field flags | |
193 void set_is_field_access_watched(const bool value) | |
194 { | |
195 if (value) { | |
196 atomic_set_bits(JVM_ACC_FIELD_ACCESS_WATCHED); | |
197 } else { | |
198 atomic_clear_bits(JVM_ACC_FIELD_ACCESS_WATCHED); | |
199 } | |
200 } | |
201 void set_is_field_modification_watched(const bool value) | |
202 { | |
203 if (value) { | |
204 atomic_set_bits(JVM_ACC_FIELD_MODIFICATION_WATCHED); | |
205 } else { | |
206 atomic_clear_bits(JVM_ACC_FIELD_MODIFICATION_WATCHED); | |
207 } | |
208 } | |
209 | |
210 // Conversion | |
211 jshort as_short() { return (jshort)_flags; } | |
212 jint as_int() { return _flags; } | |
213 | |
710 | 214 inline friend AccessFlags accessFlags_from(jint flags); |
215 | |
0 | 216 // Printing/debugging |
217 void print_on(outputStream* st) const PRODUCT_RETURN; | |
218 }; | |
710 | 219 |
220 inline AccessFlags accessFlags_from(jint flags) { | |
221 AccessFlags af; | |
222 af._flags = flags; | |
223 return af; | |
224 } |