Mercurial > hg > truffle
annotate src/share/vm/compiler/compileBroker.hpp @ 20588:41dcdd636080
8040798: compiler/startup/SmallCodeCacheStartup.java timed out in RT_Baseline
Summary: Fixes broken memory freeing of compile queue tasks and makes sure that blocking compiles do not hang the VM if compilation gets disabled due to a full code cache.
Reviewed-by: kvn, iveresov
| author | anoll |
|---|---|
| date | Tue, 29 Apr 2014 07:59:22 +0200 |
| parents | dd89808e49ba |
| children | 7848fc12602b |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 10405 | 2 * Copyright (c) 1999, 2013, 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_COMPILER_COMPILEBROKER_HPP |
| 26 #define SHARE_VM_COMPILER_COMPILEBROKER_HPP | |
| 27 | |
| 28 #include "ci/compilerInterface.hpp" | |
| 29 #include "compiler/abstractCompiler.hpp" | |
| 30 #include "runtime/perfData.hpp" | |
| 31 | |
| 0 | 32 class nmethod; |
| 33 class nmethodLocker; | |
| 34 | |
| 35 // CompileTask | |
| 36 // | |
| 37 // An entry in the compile queue. It represents a pending or current | |
| 38 // compilation. | |
| 6197 | 39 class CompileTask : public CHeapObj<mtCompiler> { |
| 3939 | 40 friend class VMStructs; |
| 41 | |
| 0 | 42 private: |
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43 static CompileTask* _task_free_list; |
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44 #ifdef ASSERT |
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45 static int _num_allocated_tasks; |
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46 #endif |
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47 |
| 0 | 48 Monitor* _lock; |
| 49 uint _compile_id; | |
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50 Method* _method; |
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51 jobject _method_holder; |
| 0 | 52 int _osr_bci; |
| 53 bool _is_complete; | |
| 54 bool _is_success; | |
| 55 bool _is_blocking; | |
| 56 int _comp_level; | |
| 57 int _num_inlined_bytecodes; | |
| 58 nmethodLocker* _code_handle; // holder of eventual result | |
| 1783 | 59 CompileTask* _next, *_prev; |
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60 bool _is_free; |
| 0 | 61 // Fields used for logging why the compilation was initiated: |
| 62 jlong _time_queued; // in units of os::elapsed_counter() | |
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63 Method* _hot_method; // which method actually triggered this task |
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64 jobject _hot_method_holder; |
| 0 | 65 int _hot_count; // information about its invocation counter |
| 66 const char* _comment; // more info about the task | |
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67 const char* _failure_reason; |
| 0 | 68 |
| 69 public: | |
| 70 CompileTask() { | |
| 71 _lock = new Monitor(Mutex::nonleaf+2, "CompileTaskLock"); | |
| 72 } | |
| 73 | |
| 74 void initialize(int compile_id, methodHandle method, int osr_bci, int comp_level, | |
| 75 methodHandle hot_method, int hot_count, const char* comment, | |
| 76 bool is_blocking); | |
| 77 | |
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78 static CompileTask* allocate(); |
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79 static void free(CompileTask* task); |
| 0 | 80 |
| 81 int compile_id() const { return _compile_id; } | |
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82 Method* method() const { return _method; } |
| 0 | 83 int osr_bci() const { return _osr_bci; } |
| 84 bool is_complete() const { return _is_complete; } | |
| 85 bool is_blocking() const { return _is_blocking; } | |
| 86 bool is_success() const { return _is_success; } | |
| 87 | |
| 88 nmethodLocker* code_handle() const { return _code_handle; } | |
| 89 void set_code_handle(nmethodLocker* l) { _code_handle = l; } | |
| 90 nmethod* code() const; // _code_handle->code() | |
| 91 void set_code(nmethod* nm); // _code_handle->set_code(nm) | |
| 92 | |
| 93 Monitor* lock() const { return _lock; } | |
| 94 | |
| 95 void mark_complete() { _is_complete = true; } | |
| 96 void mark_success() { _is_success = true; } | |
| 97 | |
| 98 int comp_level() { return _comp_level;} | |
| 99 void set_comp_level(int comp_level) { _comp_level = comp_level;} | |
| 100 | |
| 101 int num_inlined_bytecodes() const { return _num_inlined_bytecodes; } | |
| 102 void set_num_inlined_bytecodes(int n) { _num_inlined_bytecodes = n; } | |
| 103 | |
| 104 CompileTask* next() const { return _next; } | |
| 105 void set_next(CompileTask* next) { _next = next; } | |
| 1783 | 106 CompileTask* prev() const { return _prev; } |
| 107 void set_prev(CompileTask* prev) { _prev = prev; } | |
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108 bool is_free() const { return _is_free; } |
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109 void set_is_free(bool val) { _is_free = val; } |
| 0 | 110 |
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111 private: |
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112 static void print_compilation_impl(outputStream* st, Method* method, int compile_id, int comp_level, |
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113 bool is_osr_method = false, int osr_bci = -1, bool is_blocking = false, |
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114 const char* msg = NULL, bool short_form = false); |
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115 |
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116 public: |
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117 void print_compilation(outputStream* st = tty, const char* msg = NULL, bool short_form = false); |
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118 static void print_compilation(outputStream* st, const nmethod* nm, const char* msg = NULL, bool short_form = false) { |
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119 print_compilation_impl(st, nm->method(), nm->compile_id(), nm->comp_level(), |
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120 nm->is_osr_method(), nm->is_osr_method() ? nm->osr_entry_bci() : -1, /*is_blocking*/ false, |
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121 msg, short_form); |
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122 } |
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123 |
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124 static void print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg = NULL); |
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125 static void print_inlining(ciMethod* method, int inline_level, int bci, const char* msg = NULL) { |
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126 print_inlining(tty, method, inline_level, bci, msg); |
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127 } |
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128 |
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129 // Redefine Classes support |
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130 void mark_on_stack(); |
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131 |
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132 static void print_inline_indent(int inline_level, outputStream* st = tty); |
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133 |
| 0 | 134 void print(); |
| 135 void print_line(); | |
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136 void print_line_on_error(outputStream* st, char* buf, int buflen); |
| 1783 | 137 |
| 0 | 138 void log_task(xmlStream* log); |
| 139 void log_task_queued(); | |
| 140 void log_task_start(CompileLog* log); | |
| 141 void log_task_done(CompileLog* log); | |
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142 |
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143 void set_failure_reason(const char* reason) { |
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144 _failure_reason = reason; |
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145 } |
| 0 | 146 }; |
| 147 | |
| 148 // CompilerCounters | |
| 149 // | |
| 150 // Per Compiler Performance Counters. | |
| 151 // | |
| 6197 | 152 class CompilerCounters : public CHeapObj<mtCompiler> { |
| 0 | 153 |
| 154 public: | |
| 155 enum { | |
| 156 cmname_buffer_length = 160 | |
| 157 }; | |
| 158 | |
| 159 private: | |
| 160 | |
| 161 char _current_method[cmname_buffer_length]; | |
| 162 PerfStringVariable* _perf_current_method; | |
| 163 | |
| 164 int _compile_type; | |
| 165 PerfVariable* _perf_compile_type; | |
| 166 | |
| 167 PerfCounter* _perf_time; | |
| 168 PerfCounter* _perf_compiles; | |
| 169 | |
| 170 public: | |
| 171 CompilerCounters(const char* name, int instance, TRAPS); | |
| 172 | |
| 173 // these methods should be called in a thread safe context | |
| 174 | |
| 175 void set_current_method(const char* method) { | |
| 176 strncpy(_current_method, method, (size_t)cmname_buffer_length); | |
| 177 if (UsePerfData) _perf_current_method->set_value(method); | |
| 178 } | |
| 179 | |
| 180 char* current_method() { return _current_method; } | |
| 181 | |
| 182 void set_compile_type(int compile_type) { | |
| 183 _compile_type = compile_type; | |
| 184 if (UsePerfData) _perf_compile_type->set_value((jlong)compile_type); | |
| 185 } | |
| 186 | |
| 187 int compile_type() { return _compile_type; } | |
| 188 | |
| 189 PerfCounter* time_counter() { return _perf_time; } | |
| 190 PerfCounter* compile_counter() { return _perf_compiles; } | |
| 191 }; | |
| 192 | |
| 193 // CompileQueue | |
| 194 // | |
| 195 // A list of CompileTasks. | |
| 6197 | 196 class CompileQueue : public CHeapObj<mtCompiler> { |
| 0 | 197 private: |
| 198 const char* _name; | |
| 199 Monitor* _lock; | |
| 200 | |
| 201 CompileTask* _first; | |
| 202 CompileTask* _last; | |
| 203 | |
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204 CompileTask* _first_stale; |
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205 |
| 1783 | 206 int _size; |
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207 |
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208 void purge_stale_tasks(); |
| 0 | 209 public: |
| 210 CompileQueue(const char* name, Monitor* lock) { | |
| 211 _name = name; | |
| 212 _lock = lock; | |
| 213 _first = NULL; | |
| 214 _last = NULL; | |
| 1783 | 215 _size = 0; |
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216 _first_stale = NULL; |
| 0 | 217 } |
| 218 | |
| 219 const char* name() const { return _name; } | |
| 220 Monitor* lock() const { return _lock; } | |
| 221 | |
| 222 void add(CompileTask* task); | |
| 1783 | 223 void remove(CompileTask* task); |
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224 void remove_and_mark_stale(CompileTask* task); |
| 1783 | 225 CompileTask* first() { return _first; } |
| 226 CompileTask* last() { return _last; } | |
| 0 | 227 |
| 228 CompileTask* get(); | |
| 229 | |
| 230 bool is_empty() const { return _first == NULL; } | |
| 1783 | 231 int size() const { return _size; } |
| 0 | 232 |
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233 |
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234 // Redefine Classes support |
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235 void mark_on_stack(); |
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236 void free_all(); |
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237 NOT_PRODUCT (void print();) |
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238 |
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239 ~CompileQueue() { |
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240 assert (is_empty(), " Compile Queue must be empty"); |
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241 } |
| 0 | 242 }; |
| 243 | |
| 1783 | 244 // CompileTaskWrapper |
| 245 // | |
| 246 // Assign this task to the current thread. Deallocate the task | |
| 247 // when the compilation is complete. | |
| 248 class CompileTaskWrapper : StackObj { | |
| 249 public: | |
| 250 CompileTaskWrapper(CompileTask* task); | |
| 251 ~CompileTaskWrapper(); | |
| 252 }; | |
| 253 | |
| 0 | 254 |
| 255 // Compilation | |
| 256 // | |
| 257 // The broker for all compilation requests. | |
| 258 class CompileBroker: AllStatic { | |
| 259 friend class Threads; | |
| 260 friend class CompileTaskWrapper; | |
| 261 | |
| 262 public: | |
| 263 enum { | |
| 264 name_buffer_length = 100 | |
| 265 }; | |
| 266 | |
| 267 // Compile type Information for print_last_compile() and CompilerCounters | |
| 268 enum { no_compile, normal_compile, osr_compile, native_compile }; | |
| 17625 | 269 static int assign_compile_id (methodHandle method, int osr_bci); |
| 270 | |
| 0 | 271 |
| 272 private: | |
| 273 static bool _initialized; | |
| 274 static volatile bool _should_block; | |
| 275 | |
| 1202 | 276 // This flag can be used to stop compilation or turn it back on |
| 277 static volatile jint _should_compile_new_jobs; | |
| 278 | |
| 0 | 279 // The installed compiler(s) |
| 280 static AbstractCompiler* _compilers[2]; | |
| 281 | |
| 282 // These counters are used for assigning id's to each compilation | |
| 17625 | 283 static volatile jint _compilation_id; |
| 284 static volatile jint _osr_compilation_id; | |
| 0 | 285 |
| 286 static int _last_compile_type; | |
| 287 static int _last_compile_level; | |
| 288 static char _last_method_compiled[name_buffer_length]; | |
| 289 | |
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290 static CompileQueue* _c2_compile_queue; |
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291 static CompileQueue* _c1_compile_queue; |
| 0 | 292 |
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293 static GrowableArray<CompilerThread*>* _compiler_threads; |
| 0 | 294 |
| 295 // performance counters | |
| 296 static PerfCounter* _perf_total_compilation; | |
| 297 static PerfCounter* _perf_native_compilation; | |
| 298 static PerfCounter* _perf_osr_compilation; | |
| 299 static PerfCounter* _perf_standard_compilation; | |
| 300 | |
| 301 static PerfCounter* _perf_total_bailout_count; | |
| 302 static PerfCounter* _perf_total_invalidated_count; | |
| 303 static PerfCounter* _perf_total_compile_count; | |
| 304 static PerfCounter* _perf_total_native_compile_count; | |
| 305 static PerfCounter* _perf_total_osr_compile_count; | |
| 306 static PerfCounter* _perf_total_standard_compile_count; | |
| 307 | |
| 308 static PerfCounter* _perf_sum_osr_bytes_compiled; | |
| 309 static PerfCounter* _perf_sum_standard_bytes_compiled; | |
| 310 static PerfCounter* _perf_sum_nmethod_size; | |
| 311 static PerfCounter* _perf_sum_nmethod_code_size; | |
| 312 | |
| 313 static PerfStringVariable* _perf_last_method; | |
| 314 static PerfStringVariable* _perf_last_failed_method; | |
| 315 static PerfStringVariable* _perf_last_invalidated_method; | |
| 316 static PerfVariable* _perf_last_compile_type; | |
| 317 static PerfVariable* _perf_last_compile_size; | |
| 318 static PerfVariable* _perf_last_failed_type; | |
| 319 static PerfVariable* _perf_last_invalidated_type; | |
| 320 | |
| 321 // Timers and counters for generating statistics | |
| 322 static elapsedTimer _t_total_compilation; | |
| 323 static elapsedTimer _t_osr_compilation; | |
| 324 static elapsedTimer _t_standard_compilation; | |
| 325 | |
| 10405 | 326 static int _total_compile_count; |
| 0 | 327 static int _total_bailout_count; |
| 328 static int _total_invalidated_count; | |
| 329 static int _total_native_compile_count; | |
| 330 static int _total_osr_compile_count; | |
| 331 static int _total_standard_compile_count; | |
| 332 static int _sum_osr_bytes_compiled; | |
| 333 static int _sum_standard_bytes_compiled; | |
| 334 static int _sum_nmethod_size; | |
| 335 static int _sum_nmethod_code_size; | |
| 10405 | 336 static long _peak_compilation_time; |
| 0 | 337 |
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338 static volatile jint _print_compilation_warning; |
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339 |
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340 static CompilerThread* make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, AbstractCompiler* comp, TRAPS); |
| 1783 | 341 static void init_compiler_threads(int c1_compiler_count, int c2_compiler_count); |
| 0 | 342 static bool compilation_is_complete (methodHandle method, int osr_bci, int comp_level); |
| 343 static bool compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level); | |
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344 static bool is_compile_blocking (); |
| 0 | 345 static void preload_classes (methodHandle method, TRAPS); |
| 346 | |
| 347 static CompileTask* create_compile_task(CompileQueue* queue, | |
| 348 int compile_id, | |
| 349 methodHandle method, | |
| 350 int osr_bci, | |
| 351 int comp_level, | |
| 352 methodHandle hot_method, | |
| 353 int hot_count, | |
| 354 const char* comment, | |
| 355 bool blocking); | |
| 356 static void wait_for_completion(CompileTask* task); | |
| 357 | |
| 358 static void invoke_compiler_on_method(CompileTask* task); | |
| 359 static void set_last_compile(CompilerThread *thread, methodHandle method, bool is_osr, int comp_level); | |
| 360 static void push_jni_handle_block(); | |
| 361 static void pop_jni_handle_block(); | |
| 362 static bool check_break_at(methodHandle method, int compile_id, bool is_osr); | |
| 363 static void collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task); | |
| 364 | |
| 365 static void compile_method_base(methodHandle method, | |
| 366 int osr_bci, | |
| 367 int comp_level, | |
| 368 methodHandle hot_method, | |
| 369 int hot_count, | |
| 370 const char* comment, | |
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371 Thread* thread); |
| 1783 | 372 static CompileQueue* compile_queue(int comp_level) { |
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373 if (is_c2_compile(comp_level)) return _c2_compile_queue; |
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374 if (is_c1_compile(comp_level)) return _c1_compile_queue; |
| 1783 | 375 return NULL; |
| 376 } | |
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377 static bool init_compiler_runtime(); |
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378 static void shutdown_compiler_runtime(AbstractCompiler* comp, CompilerThread* thread); |
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379 |
| 0 | 380 public: |
| 381 enum { | |
| 382 // The entry bci used for non-OSR compilations. | |
| 383 standard_entry_bci = InvocationEntryBci | |
| 384 }; | |
| 385 | |
| 1783 | 386 static AbstractCompiler* compiler(int comp_level) { |
| 387 if (is_c2_compile(comp_level)) return _compilers[1]; // C2 | |
| 388 if (is_c1_compile(comp_level)) return _compilers[0]; // C1 | |
| 389 return NULL; | |
| 0 | 390 } |
| 391 | |
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392 static bool compilation_is_in_queue(methodHandle method); |
| 1783 | 393 static int queue_size(int comp_level) { |
| 394 CompileQueue *q = compile_queue(comp_level); | |
| 395 return q != NULL ? q->size() : 0; | |
| 396 } | |
| 0 | 397 static void compilation_init(); |
| 398 static void init_compiler_thread_log(); | |
| 1783 | 399 static nmethod* compile_method(methodHandle method, |
| 400 int osr_bci, | |
| 401 int comp_level, | |
| 402 methodHandle hot_method, | |
| 403 int hot_count, | |
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404 const char* comment, Thread* thread); |
| 0 | 405 |
| 406 static void compiler_thread_loop(); | |
| 1202 | 407 static uint get_compilation_id() { return _compilation_id; } |
| 0 | 408 |
| 409 // Set _should_block. | |
| 410 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
| 411 static void set_should_block(); | |
| 412 | |
| 413 // Call this from the compiler at convenient points, to poll for _should_block. | |
| 414 static void maybe_block(); | |
| 415 | |
| 1202 | 416 enum { |
| 417 // Flags for toggling compiler activity | |
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418 stop_compilation = 0, |
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419 run_compilation = 1, |
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420 shutdown_compilaton = 2 |
| 1202 | 421 }; |
| 422 | |
| 423 static bool should_compile_new_jobs() { return UseCompiler && (_should_compile_new_jobs == run_compilation); } | |
| 424 static bool set_should_compile_new_jobs(jint new_state) { | |
| 425 // Return success if the current caller set it | |
| 426 jint old = Atomic::cmpxchg(new_state, &_should_compile_new_jobs, 1-new_state); | |
| 427 return (old == (1-new_state)); | |
| 428 } | |
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429 |
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430 static void disable_compilation_forever() { |
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431 UseCompiler = false; |
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432 AlwaysCompileLoopMethods = false; |
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433 Atomic::xchg(shutdown_compilaton, &_should_compile_new_jobs); |
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434 } |
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435 |
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436 static bool is_compilation_disabled_forever() { |
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437 return _should_compile_new_jobs == shutdown_compilaton; |
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438 } |
| 1202 | 439 static void handle_full_code_cache(); |
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440 // Ensures that warning is only printed once. |
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441 static bool should_print_compiler_warning() { |
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442 jint old = Atomic::cmpxchg(1, &_print_compilation_warning, 0); |
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443 return old == 0; |
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444 } |
| 0 | 445 // Return total compilation ticks |
| 446 static jlong total_compilation_ticks() { | |
| 447 return _perf_total_compilation != NULL ? _perf_total_compilation->get_value() : 0; | |
| 448 } | |
| 449 | |
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450 // Redefine Classes support |
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451 static void mark_on_stack(); |
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452 |
| 0 | 453 // Print a detailed accounting of compilation time |
| 454 static void print_times(); | |
| 455 | |
| 456 // Debugging output for failure | |
| 457 static void print_last_compile(); | |
| 458 | |
| 459 static void print_compiler_threads_on(outputStream* st); | |
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460 |
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461 // compiler name for debugging |
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462 static const char* compiler_name(int comp_level); |
| 10405 | 463 |
| 464 static int get_total_compile_count() { return _total_compile_count; } | |
| 465 static int get_total_bailout_count() { return _total_bailout_count; } | |
| 466 static int get_total_invalidated_count() { return _total_invalidated_count; } | |
| 467 static int get_total_native_compile_count() { return _total_native_compile_count; } | |
| 468 static int get_total_osr_compile_count() { return _total_osr_compile_count; } | |
| 469 static int get_total_standard_compile_count() { return _total_standard_compile_count; } | |
| 470 static int get_sum_osr_bytes_compiled() { return _sum_osr_bytes_compiled; } | |
| 471 static int get_sum_standard_bytes_compiled() { return _sum_standard_bytes_compiled; } | |
| 472 static int get_sum_nmethod_size() { return _sum_nmethod_size;} | |
| 473 static int get_sum_nmethod_code_size() { return _sum_nmethod_code_size; } | |
| 474 static long get_peak_compilation_time() { return _peak_compilation_time; } | |
| 475 static long get_total_compilation_time() { return _t_total_compilation.milliseconds(); } | |
| 0 | 476 }; |
| 1972 | 477 |
| 478 #endif // SHARE_VM_COMPILER_COMPILEBROKER_HPP |