Mercurial > hg > graal-jvmci-8
comparison src/share/vm/opto/runtime.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | 37f87013dfd8 |
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1 /* | |
2 * Copyright 1998-2007 Sun Microsystems, Inc. All Rights Reserved. | |
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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 //------------------------------OptoRuntime------------------------------------ | |
26 // Opto compiler runtime routines | |
27 // | |
28 // These are all generated from Ideal graphs. They are called with the | |
29 // Java calling convention. Internally they call C++. They are made once at | |
30 // startup time and Opto compiles calls to them later. | |
31 // Things are broken up into quads: the signature they will be called with, | |
32 // the address of the generated code, the corresponding C++ code and an | |
33 // nmethod. | |
34 | |
35 // The signature (returned by "xxx_Type()") is used at startup time by the | |
36 // Generator to make the generated code "xxx_Java". Opto compiles calls | |
37 // to the generated code "xxx_Java". When the compiled code gets executed, | |
38 // it calls the C++ code "xxx_C". The generated nmethod is saved in the | |
39 // CodeCache. Exception handlers use the nmethod to get the callee-save | |
40 // register OopMaps. | |
41 class CallInfo; | |
42 | |
43 // | |
44 // NamedCounters are tagged counters which can be used for profiling | |
45 // code in various ways. Currently they are used by the lock coarsening code | |
46 // | |
47 | |
48 class NamedCounter : public CHeapObj { | |
49 public: | |
50 enum CounterTag { | |
51 NoTag, | |
52 LockCounter, | |
53 EliminatedLockCounter, | |
54 BiasedLockingCounter | |
55 }; | |
56 | |
57 private: | |
58 const char * _name; | |
59 int _count; | |
60 CounterTag _tag; | |
61 NamedCounter* _next; | |
62 | |
63 public: | |
64 NamedCounter(const char *n, CounterTag tag = NoTag): | |
65 _name(n), | |
66 _count(0), | |
67 _next(NULL), | |
68 _tag(tag) {} | |
69 | |
70 const char * name() const { return _name; } | |
71 int count() const { return _count; } | |
72 address addr() { return (address)&_count; } | |
73 CounterTag tag() const { return _tag; } | |
74 void set_tag(CounterTag tag) { _tag = tag; } | |
75 | |
76 NamedCounter* next() const { return _next; } | |
77 void set_next(NamedCounter* next) { | |
78 assert(_next == NULL, "already set"); | |
79 _next = next; | |
80 } | |
81 | |
82 }; | |
83 | |
84 class BiasedLockingNamedCounter : public NamedCounter { | |
85 private: | |
86 BiasedLockingCounters _counters; | |
87 | |
88 public: | |
89 BiasedLockingNamedCounter(const char *n) : | |
90 NamedCounter(n, BiasedLockingCounter), _counters() {} | |
91 | |
92 BiasedLockingCounters* counters() { return &_counters; } | |
93 }; | |
94 | |
95 typedef const TypeFunc*(*TypeFunc_generator)(); | |
96 | |
97 class OptoRuntime : public AllStatic { | |
98 friend class Matcher; // allow access to stub names | |
99 | |
100 private: | |
101 // define stubs | |
102 static address generate_stub(ciEnv* ci_env, TypeFunc_generator gen, address C_function, const char *name, int is_fancy_jump, bool pass_tls, bool save_arguments, bool return_pc); | |
103 | |
104 // References to generated stubs | |
105 static address _new_instance_Java; | |
106 static address _new_array_Java; | |
107 static address _multianewarray2_Java; | |
108 static address _multianewarray3_Java; | |
109 static address _multianewarray4_Java; | |
110 static address _multianewarray5_Java; | |
111 static address _vtable_must_compile_Java; | |
112 static address _complete_monitor_locking_Java; | |
113 static address _rethrow_Java; | |
114 | |
115 static address _slow_arraycopy_Java; | |
116 static address _register_finalizer_Java; | |
117 | |
118 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
119 static address _zap_dead_Java_locals_Java; | |
120 static address _zap_dead_native_locals_Java; | |
121 # endif | |
122 | |
123 | |
124 // | |
125 // Implementation of runtime methods | |
126 // ================================= | |
127 | |
128 // Allocate storage for a Java instance. | |
129 static void new_instance_C(klassOopDesc* instance_klass, JavaThread *thread); | |
130 | |
131 // Allocate storage for a objArray or typeArray | |
132 static void new_array_C(klassOopDesc* array_klass, int len, JavaThread *thread); | |
133 | |
134 // Post-allocation step for implementing ReduceInitialCardMarks: | |
135 static void do_eager_card_mark(JavaThread* thread); | |
136 | |
137 // Allocate storage for a multi-dimensional arrays | |
138 // Note: needs to be fixed for arbitrary number of dimensions | |
139 static void multianewarray2_C(klassOopDesc* klass, int len1, int len2, JavaThread *thread); | |
140 static void multianewarray3_C(klassOopDesc* klass, int len1, int len2, int len3, JavaThread *thread); | |
141 static void multianewarray4_C(klassOopDesc* klass, int len1, int len2, int len3, int len4, JavaThread *thread); | |
142 static void multianewarray5_C(klassOopDesc* klass, int len1, int len2, int len3, int len4, int len5, JavaThread *thread); | |
143 | |
144 public: | |
145 // Slow-path Locking and Unlocking | |
146 static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread); | |
147 static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock); | |
148 | |
149 private: | |
150 | |
151 // Implicit exception support | |
152 static void throw_null_exception_C(JavaThread* thread); | |
153 | |
154 // Exception handling | |
155 static address handle_exception_C (JavaThread* thread); | |
156 static address handle_exception_C_helper(JavaThread* thread, nmethod*& nm); | |
157 static address rethrow_C (oopDesc* exception, JavaThread *thread, address return_pc ); | |
158 static void deoptimize_caller_frame (JavaThread *thread, bool doit); | |
159 | |
160 // CodeBlob support | |
161 // =================================================================== | |
162 | |
163 static ExceptionBlob* _exception_blob; | |
164 static void generate_exception_blob(); | |
165 | |
166 static void register_finalizer(oopDesc* obj, JavaThread* thread); | |
167 | |
168 // zaping dead locals, either from Java frames or from native frames | |
169 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
170 static void zap_dead_Java_locals_C( JavaThread* thread); | |
171 static void zap_dead_native_locals_C( JavaThread* thread); | |
172 | |
173 static void zap_dead_java_or_native_locals( JavaThread*, bool (*)(frame*)); | |
174 | |
175 public: | |
176 static int ZapDeadCompiledLocals_count; | |
177 | |
178 # endif | |
179 | |
180 | |
181 public: | |
182 | |
183 static bool is_callee_saved_register(MachRegisterNumbers reg); | |
184 | |
185 // One time only generate runtime code stubs | |
186 static void generate(ciEnv* env); | |
187 | |
188 // Returns the name of a stub | |
189 static const char* stub_name(address entry); | |
190 | |
191 // access to runtime stubs entry points for java code | |
192 static address new_instance_Java() { return _new_instance_Java; } | |
193 static address new_array_Java() { return _new_array_Java; } | |
194 static address multianewarray2_Java() { return _multianewarray2_Java; } | |
195 static address multianewarray3_Java() { return _multianewarray3_Java; } | |
196 static address multianewarray4_Java() { return _multianewarray4_Java; } | |
197 static address multianewarray5_Java() { return _multianewarray5_Java; } | |
198 static address vtable_must_compile_stub() { return _vtable_must_compile_Java; } | |
199 static address complete_monitor_locking_Java() { return _complete_monitor_locking_Java; } | |
200 | |
201 static address slow_arraycopy_Java() { return _slow_arraycopy_Java; } | |
202 static address register_finalizer_Java() { return _register_finalizer_Java; } | |
203 | |
204 | |
205 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
206 static address zap_dead_locals_stub(bool is_native) { return is_native | |
207 ? _zap_dead_native_locals_Java | |
208 : _zap_dead_Java_locals_Java; } | |
209 static MachNode* node_to_call_zap_dead_locals(Node* n, int block_num, bool is_native); | |
210 # endif | |
211 | |
212 static ExceptionBlob* exception_blob() { return _exception_blob; } | |
213 | |
214 // Leaf routines helping with method data update | |
215 static void profile_receiver_type_C(DataLayout* data, oopDesc* receiver); | |
216 | |
217 // Implicit exception support | |
218 static void throw_div0_exception_C (JavaThread* thread); | |
219 static void throw_stack_overflow_error_C(JavaThread* thread); | |
220 | |
221 // Exception handling | |
222 static address rethrow_stub() { return _rethrow_Java; } | |
223 | |
224 | |
225 // Type functions | |
226 // ====================================================== | |
227 | |
228 static const TypeFunc* new_instance_Type(); // object allocation (slow case) | |
229 static const TypeFunc* new_array_Type (); // [a]newarray (slow case) | |
230 static const TypeFunc* multianewarray_Type(int ndim); // multianewarray | |
231 static const TypeFunc* multianewarray2_Type(); // multianewarray | |
232 static const TypeFunc* multianewarray3_Type(); // multianewarray | |
233 static const TypeFunc* multianewarray4_Type(); // multianewarray | |
234 static const TypeFunc* multianewarray5_Type(); // multianewarray | |
235 static const TypeFunc* complete_monitor_enter_Type(); | |
236 static const TypeFunc* complete_monitor_exit_Type(); | |
237 static const TypeFunc* uncommon_trap_Type(); | |
238 static const TypeFunc* athrow_Type(); | |
239 static const TypeFunc* rethrow_Type(); | |
240 static const TypeFunc* Math_D_D_Type(); // sin,cos & friends | |
241 static const TypeFunc* Math_DD_D_Type(); // mod,pow & friends | |
242 static const TypeFunc* modf_Type(); | |
243 static const TypeFunc* l2f_Type(); | |
244 static const TypeFunc* current_time_millis_Type(); | |
245 | |
246 static const TypeFunc* flush_windows_Type(); | |
247 | |
248 // arraycopy routine types | |
249 static const TypeFunc* fast_arraycopy_Type(); // bit-blasters | |
250 static const TypeFunc* checkcast_arraycopy_Type(); | |
251 static const TypeFunc* generic_arraycopy_Type(); | |
252 static const TypeFunc* slow_arraycopy_Type(); // the full routine | |
253 | |
254 // leaf on stack replacement interpreter accessor types | |
255 static const TypeFunc* osr_end_Type(); | |
256 | |
257 // leaf methodData routine types | |
258 static const TypeFunc* profile_receiver_type_Type(); | |
259 | |
260 // leaf on stack replacement interpreter accessor types | |
261 static const TypeFunc* fetch_int_Type(); | |
262 static const TypeFunc* fetch_long_Type(); | |
263 static const TypeFunc* fetch_float_Type(); | |
264 static const TypeFunc* fetch_double_Type(); | |
265 static const TypeFunc* fetch_oop_Type(); | |
266 static const TypeFunc* fetch_monitor_Type(); | |
267 | |
268 static const TypeFunc* register_finalizer_Type(); | |
269 | |
270 // Dtrace support | |
271 static const TypeFunc* dtrace_method_entry_exit_Type(); | |
272 static const TypeFunc* dtrace_object_alloc_Type(); | |
273 | |
274 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
275 static const TypeFunc* zap_dead_locals_Type(); | |
276 # endif | |
277 | |
278 private: | |
279 static NamedCounter * volatile _named_counters; | |
280 | |
281 public: | |
282 // helper function which creates a named counter labeled with the | |
283 // if they are available | |
284 static NamedCounter* new_named_counter(JVMState* jvms, NamedCounter::CounterTag tag); | |
285 | |
286 // dumps all the named counters | |
287 static void print_named_counters(); | |
288 | |
289 }; |