Mercurial > hg > graal-compiler
annotate src/share/vm/ci/ciMethod.cpp @ 9787:3207fae2e2f6
Value: do equals test of `name' as assertion
author | Bernhard Urban <bernhard.urban@jku.at> |
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date | Tue, 21 May 2013 18:03:35 +0200 |
parents | b9a918201d47 |
children | 836a62f43af9 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2012, 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 #include "precompiled.hpp" |
26 #include "ci/ciCallProfile.hpp" | |
27 #include "ci/ciExceptionHandler.hpp" | |
28 #include "ci/ciInstanceKlass.hpp" | |
29 #include "ci/ciMethod.hpp" | |
30 #include "ci/ciMethodBlocks.hpp" | |
31 #include "ci/ciMethodData.hpp" | |
32 #include "ci/ciStreams.hpp" | |
33 #include "ci/ciSymbol.hpp" | |
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34 #include "ci/ciReplay.hpp" |
1972 | 35 #include "ci/ciUtilities.hpp" |
36 #include "classfile/systemDictionary.hpp" | |
37 #include "compiler/abstractCompiler.hpp" | |
38 #include "compiler/compilerOracle.hpp" | |
39 #include "compiler/methodLiveness.hpp" | |
40 #include "interpreter/interpreter.hpp" | |
41 #include "interpreter/linkResolver.hpp" | |
42 #include "interpreter/oopMapCache.hpp" | |
43 #include "memory/allocation.inline.hpp" | |
44 #include "memory/resourceArea.hpp" | |
45 #include "oops/generateOopMap.hpp" | |
46 #include "oops/oop.inline.hpp" | |
47 #include "prims/nativeLookup.hpp" | |
48 #include "runtime/deoptimization.hpp" | |
49 #include "utilities/bitMap.inline.hpp" | |
50 #include "utilities/xmlstream.hpp" | |
51 #ifdef COMPILER2 | |
52 #include "ci/bcEscapeAnalyzer.hpp" | |
53 #include "ci/ciTypeFlow.hpp" | |
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54 #include "oops/method.hpp" |
1972 | 55 #endif |
56 #ifdef SHARK | |
57 #include "ci/ciTypeFlow.hpp" | |
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58 #include "oops/method.hpp" |
1972 | 59 #endif |
0 | 60 |
61 // ciMethod | |
62 // | |
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63 // This class represents a Method* in the HotSpot virtual |
0 | 64 // machine. |
65 | |
66 | |
67 // ------------------------------------------------------------------ | |
68 // ciMethod::ciMethod | |
69 // | |
70 // Loaded method. | |
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71 ciMethod::ciMethod(methodHandle h_m) : ciMetadata(h_m()) { |
0 | 72 assert(h_m() != NULL, "no null method"); |
73 | |
74 // These fields are always filled in in loaded methods. | |
75 _flags = ciFlags(h_m()->access_flags()); | |
76 | |
77 // Easy to compute, so fill them in now. | |
78 _max_stack = h_m()->max_stack(); | |
79 _max_locals = h_m()->max_locals(); | |
80 _code_size = h_m()->code_size(); | |
81 _intrinsic_id = h_m()->intrinsic_id(); | |
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82 _handler_count = h_m()->exception_table_length(); |
0 | 83 _uses_monitors = h_m()->access_flags().has_monitor_bytecodes(); |
84 _balanced_monitors = !_uses_monitors || h_m()->access_flags().is_monitor_matching(); | |
1783 | 85 _is_c1_compilable = !h_m()->is_not_c1_compilable(); |
86 _is_c2_compilable = !h_m()->is_not_c2_compilable(); | |
0 | 87 // Lazy fields, filled in on demand. Require allocation. |
88 _code = NULL; | |
89 _exception_handlers = NULL; | |
90 _liveness = NULL; | |
91 _method_blocks = NULL; | |
1692 | 92 #if defined(COMPILER2) || defined(SHARK) |
0 | 93 _flow = NULL; |
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94 _bcea = NULL; |
1692 | 95 #endif // COMPILER2 || SHARK |
0 | 96 |
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97 ciEnv *env = CURRENT_ENV; |
1783 | 98 if (env->jvmti_can_hotswap_or_post_breakpoint() && can_be_compiled()) { |
0 | 99 // 6328518 check hotswap conditions under the right lock. |
100 MutexLocker locker(Compile_lock); | |
101 if (Dependencies::check_evol_method(h_m()) != NULL) { | |
1783 | 102 _is_c1_compilable = false; |
103 _is_c2_compilable = false; | |
0 | 104 } |
105 } else { | |
106 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); | |
107 } | |
108 | |
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109 if (h_m()->method_holder()->is_linked()) { |
0 | 110 _can_be_statically_bound = h_m()->can_be_statically_bound(); |
111 } else { | |
112 // Have to use a conservative value in this case. | |
113 _can_be_statically_bound = false; | |
114 } | |
115 | |
116 // Adjust the definition of this condition to be more useful: | |
117 // %%% take these conditions into account in vtable generation | |
118 if (!_can_be_statically_bound && h_m()->is_private()) | |
119 _can_be_statically_bound = true; | |
120 if (_can_be_statically_bound && h_m()->is_abstract()) | |
121 _can_be_statically_bound = false; | |
122 | |
123 // generating _signature may allow GC and therefore move m. | |
124 // These fields are always filled in. | |
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125 _name = env->get_symbol(h_m()->name()); |
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126 _holder = env->get_instance_klass(h_m()->method_holder()); |
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127 ciSymbol* sig_symbol = env->get_symbol(h_m()->signature()); |
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128 constantPoolHandle cpool = h_m()->constants(); |
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129 _signature = new (env->arena()) ciSignature(_holder, cpool, sig_symbol); |
0 | 130 _method_data = NULL; |
131 // Take a snapshot of these values, so they will be commensurate with the MDO. | |
1783 | 132 if (ProfileInterpreter || TieredCompilation) { |
0 | 133 int invcnt = h_m()->interpreter_invocation_count(); |
134 // if the value overflowed report it as max int | |
135 _interpreter_invocation_count = invcnt < 0 ? max_jint : invcnt ; | |
136 _interpreter_throwout_count = h_m()->interpreter_throwout_count(); | |
137 } else { | |
138 _interpreter_invocation_count = 0; | |
139 _interpreter_throwout_count = 0; | |
140 } | |
141 if (_interpreter_invocation_count == 0) | |
142 _interpreter_invocation_count = 1; | |
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143 _instructions_size = -1; |
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144 #ifdef ASSERT |
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145 if (ReplayCompiles) { |
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146 ciReplay::initialize(this); |
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147 } |
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148 #endif |
0 | 149 } |
150 | |
151 | |
152 // ------------------------------------------------------------------ | |
153 // ciMethod::ciMethod | |
154 // | |
155 // Unloaded method. | |
156 ciMethod::ciMethod(ciInstanceKlass* holder, | |
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157 ciSymbol* name, |
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158 ciSymbol* signature, |
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159 ciInstanceKlass* accessor) : |
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160 ciMetadata((Metadata*)NULL), |
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161 _name( name), |
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162 _holder( holder), |
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163 _intrinsic_id( vmIntrinsics::_none), |
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164 _liveness( NULL), |
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165 _can_be_statically_bound(false), |
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166 _method_blocks( NULL), |
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167 _method_data( NULL) |
1692 | 168 #if defined(COMPILER2) || defined(SHARK) |
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169 , |
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170 _flow( NULL), |
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171 _bcea( NULL), |
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172 _instructions_size(-1) |
1692 | 173 #endif // COMPILER2 || SHARK |
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174 { |
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175 // Usually holder and accessor are the same type but in some cases |
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176 // the holder has the wrong class loader (e.g. invokedynamic call |
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177 // sites) so we pass the accessor. |
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178 _signature = new (CURRENT_ENV->arena()) ciSignature(accessor, constantPoolHandle(), signature); |
0 | 179 } |
180 | |
181 | |
182 // ------------------------------------------------------------------ | |
183 // ciMethod::load_code | |
184 // | |
185 // Load the bytecodes and exception handler table for this method. | |
186 void ciMethod::load_code() { | |
187 VM_ENTRY_MARK; | |
188 assert(is_loaded(), "only loaded methods have code"); | |
189 | |
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190 Method* me = get_Method(); |
0 | 191 Arena* arena = CURRENT_THREAD_ENV->arena(); |
192 | |
193 // Load the bytecodes. | |
194 _code = (address)arena->Amalloc(code_size()); | |
195 memcpy(_code, me->code_base(), code_size()); | |
196 | |
197 // Revert any breakpoint bytecodes in ci's copy | |
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198 if (me->number_of_breakpoints() > 0) { |
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199 BreakpointInfo* bp = me->method_holder()->breakpoints(); |
0 | 200 for (; bp != NULL; bp = bp->next()) { |
201 if (bp->match(me)) { | |
202 code_at_put(bp->bci(), bp->orig_bytecode()); | |
203 } | |
204 } | |
205 } | |
206 | |
207 // And load the exception table. | |
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208 ExceptionTable exc_table(me); |
0 | 209 |
210 // Allocate one extra spot in our list of exceptions. This | |
211 // last entry will be used to represent the possibility that | |
212 // an exception escapes the method. See ciExceptionHandlerStream | |
213 // for details. | |
214 _exception_handlers = | |
215 (ciExceptionHandler**)arena->Amalloc(sizeof(ciExceptionHandler*) | |
216 * (_handler_count + 1)); | |
217 if (_handler_count > 0) { | |
218 for (int i=0; i<_handler_count; i++) { | |
219 _exception_handlers[i] = new (arena) ciExceptionHandler( | |
220 holder(), | |
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221 /* start */ exc_table.start_pc(i), |
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222 /* limit */ exc_table.end_pc(i), |
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223 /* goto pc */ exc_table.handler_pc(i), |
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224 /* cp index */ exc_table.catch_type_index(i)); |
0 | 225 } |
226 } | |
227 | |
228 // Put an entry at the end of our list to represent the possibility | |
229 // of exceptional exit. | |
230 _exception_handlers[_handler_count] = | |
231 new (arena) ciExceptionHandler(holder(), 0, code_size(), -1, 0); | |
232 | |
233 if (CIPrintMethodCodes) { | |
234 print_codes(); | |
235 } | |
236 } | |
237 | |
238 | |
239 // ------------------------------------------------------------------ | |
240 // ciMethod::has_linenumber_table | |
241 // | |
242 // length unknown until decompression | |
243 bool ciMethod::has_linenumber_table() const { | |
244 check_is_loaded(); | |
245 VM_ENTRY_MARK; | |
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246 return get_Method()->has_linenumber_table(); |
0 | 247 } |
248 | |
249 | |
250 // ------------------------------------------------------------------ | |
251 // ciMethod::compressed_linenumber_table | |
252 u_char* ciMethod::compressed_linenumber_table() const { | |
253 check_is_loaded(); | |
254 VM_ENTRY_MARK; | |
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255 return get_Method()->compressed_linenumber_table(); |
0 | 256 } |
257 | |
258 | |
259 // ------------------------------------------------------------------ | |
260 // ciMethod::line_number_from_bci | |
261 int ciMethod::line_number_from_bci(int bci) const { | |
262 check_is_loaded(); | |
263 VM_ENTRY_MARK; | |
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264 return get_Method()->line_number_from_bci(bci); |
0 | 265 } |
266 | |
267 | |
268 // ------------------------------------------------------------------ | |
269 // ciMethod::vtable_index | |
270 // | |
271 // Get the position of this method's entry in the vtable, if any. | |
272 int ciMethod::vtable_index() { | |
273 check_is_loaded(); | |
274 assert(holder()->is_linked(), "must be linked"); | |
275 VM_ENTRY_MARK; | |
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276 return get_Method()->vtable_index(); |
0 | 277 } |
278 | |
279 | |
1692 | 280 #ifdef SHARK |
281 // ------------------------------------------------------------------ | |
282 // ciMethod::itable_index | |
283 // | |
284 // Get the position of this method's entry in the itable, if any. | |
285 int ciMethod::itable_index() { | |
286 check_is_loaded(); | |
287 assert(holder()->is_linked(), "must be linked"); | |
288 VM_ENTRY_MARK; | |
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289 return klassItable::compute_itable_index(get_Method()); |
1692 | 290 } |
291 #endif // SHARK | |
292 | |
293 | |
0 | 294 // ------------------------------------------------------------------ |
295 // ciMethod::native_entry | |
296 // | |
297 // Get the address of this method's native code, if any. | |
298 address ciMethod::native_entry() { | |
299 check_is_loaded(); | |
300 assert(flags().is_native(), "must be native method"); | |
301 VM_ENTRY_MARK; | |
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302 Method* method = get_Method(); |
0 | 303 address entry = method->native_function(); |
304 assert(entry != NULL, "must be valid entry point"); | |
305 return entry; | |
306 } | |
307 | |
308 | |
309 // ------------------------------------------------------------------ | |
310 // ciMethod::interpreter_entry | |
311 // | |
312 // Get the entry point for running this method in the interpreter. | |
313 address ciMethod::interpreter_entry() { | |
314 check_is_loaded(); | |
315 VM_ENTRY_MARK; | |
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316 methodHandle mh(THREAD, get_Method()); |
0 | 317 return Interpreter::entry_for_method(mh); |
318 } | |
319 | |
320 | |
321 // ------------------------------------------------------------------ | |
322 // ciMethod::uses_balanced_monitors | |
323 // | |
324 // Does this method use monitors in a strict stack-disciplined manner? | |
325 bool ciMethod::has_balanced_monitors() { | |
326 check_is_loaded(); | |
327 if (_balanced_monitors) return true; | |
328 | |
329 // Analyze the method to see if monitors are used properly. | |
330 VM_ENTRY_MARK; | |
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331 methodHandle method(THREAD, get_Method()); |
0 | 332 assert(method->has_monitor_bytecodes(), "should have checked this"); |
333 | |
334 // Check to see if a previous compilation computed the | |
335 // monitor-matching analysis. | |
336 if (method->guaranteed_monitor_matching()) { | |
337 _balanced_monitors = true; | |
338 return true; | |
339 } | |
340 | |
341 { | |
342 EXCEPTION_MARK; | |
343 ResourceMark rm(THREAD); | |
344 GeneratePairingInfo gpi(method); | |
345 gpi.compute_map(CATCH); | |
346 if (!gpi.monitor_safe()) { | |
347 return false; | |
348 } | |
349 method->set_guaranteed_monitor_matching(); | |
350 _balanced_monitors = true; | |
351 } | |
352 return true; | |
353 } | |
354 | |
355 | |
356 // ------------------------------------------------------------------ | |
357 // ciMethod::get_flow_analysis | |
358 ciTypeFlow* ciMethod::get_flow_analysis() { | |
1692 | 359 #if defined(COMPILER2) || defined(SHARK) |
0 | 360 if (_flow == NULL) { |
361 ciEnv* env = CURRENT_ENV; | |
362 _flow = new (env->arena()) ciTypeFlow(env, this); | |
363 _flow->do_flow(); | |
364 } | |
365 return _flow; | |
1692 | 366 #else // COMPILER2 || SHARK |
0 | 367 ShouldNotReachHere(); |
368 return NULL; | |
1692 | 369 #endif // COMPILER2 || SHARK |
0 | 370 } |
371 | |
372 | |
373 // ------------------------------------------------------------------ | |
374 // ciMethod::get_osr_flow_analysis | |
375 ciTypeFlow* ciMethod::get_osr_flow_analysis(int osr_bci) { | |
1692 | 376 #if defined(COMPILER2) || defined(SHARK) |
0 | 377 // OSR entry points are always place after a call bytecode of some sort |
378 assert(osr_bci >= 0, "must supply valid OSR entry point"); | |
379 ciEnv* env = CURRENT_ENV; | |
380 ciTypeFlow* flow = new (env->arena()) ciTypeFlow(env, this, osr_bci); | |
381 flow->do_flow(); | |
382 return flow; | |
1692 | 383 #else // COMPILER2 || SHARK |
0 | 384 ShouldNotReachHere(); |
385 return NULL; | |
1692 | 386 #endif // COMPILER2 || SHARK |
0 | 387 } |
388 | |
389 // ------------------------------------------------------------------ | |
991 | 390 // ciMethod::raw_liveness_at_bci |
0 | 391 // |
392 // Which local variables are live at a specific bci? | |
991 | 393 MethodLivenessResult ciMethod::raw_liveness_at_bci(int bci) { |
0 | 394 check_is_loaded(); |
395 if (_liveness == NULL) { | |
396 // Create the liveness analyzer. | |
397 Arena* arena = CURRENT_ENV->arena(); | |
398 _liveness = new (arena) MethodLiveness(arena, this); | |
399 _liveness->compute_liveness(); | |
400 } | |
991 | 401 return _liveness->get_liveness_at(bci); |
402 } | |
403 | |
404 // ------------------------------------------------------------------ | |
405 // ciMethod::liveness_at_bci | |
406 // | |
407 // Which local variables are live at a specific bci? When debugging | |
408 // will return true for all locals in some cases to improve debug | |
409 // information. | |
410 MethodLivenessResult ciMethod::liveness_at_bci(int bci) { | |
411 MethodLivenessResult result = raw_liveness_at_bci(bci); | |
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412 if (CURRENT_ENV->jvmti_can_access_local_variables() || DeoptimizeALot || CompileTheWorld) { |
0 | 413 // Keep all locals live for the user's edification and amusement. |
414 result.at_put_range(0, result.size(), true); | |
415 } | |
416 return result; | |
417 } | |
418 | |
419 // ciMethod::live_local_oops_at_bci | |
420 // | |
421 // find all the live oops in the locals array for a particular bci | |
422 // Compute what the interpreter believes by using the interpreter | |
423 // oopmap generator. This is used as a double check during osr to | |
424 // guard against conservative result from MethodLiveness making us | |
425 // think a dead oop is live. MethodLiveness is conservative in the | |
426 // sense that it may consider locals to be live which cannot be live, | |
427 // like in the case where a local could contain an oop or a primitive | |
428 // along different paths. In that case the local must be dead when | |
429 // those paths merge. Since the interpreter's viewpoint is used when | |
430 // gc'ing an interpreter frame we need to use its viewpoint during | |
431 // OSR when loading the locals. | |
432 | |
433 BitMap ciMethod::live_local_oops_at_bci(int bci) { | |
434 VM_ENTRY_MARK; | |
435 InterpreterOopMap mask; | |
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436 OopMapCache::compute_one_oop_map(get_Method(), bci, &mask); |
0 | 437 int mask_size = max_locals(); |
438 BitMap result(mask_size); | |
439 result.clear(); | |
440 int i; | |
441 for (i = 0; i < mask_size ; i++ ) { | |
442 if (mask.is_oop(i)) result.set_bit(i); | |
443 } | |
444 return result; | |
445 } | |
446 | |
447 | |
448 #ifdef COMPILER1 | |
449 // ------------------------------------------------------------------ | |
450 // ciMethod::bci_block_start | |
451 // | |
452 // Marks all bcis where a new basic block starts | |
453 const BitMap ciMethod::bci_block_start() { | |
454 check_is_loaded(); | |
455 if (_liveness == NULL) { | |
456 // Create the liveness analyzer. | |
457 Arena* arena = CURRENT_ENV->arena(); | |
458 _liveness = new (arena) MethodLiveness(arena, this); | |
459 _liveness->compute_liveness(); | |
460 } | |
461 | |
462 return _liveness->get_bci_block_start(); | |
463 } | |
464 #endif // COMPILER1 | |
465 | |
466 | |
467 // ------------------------------------------------------------------ | |
468 // ciMethod::call_profile_at_bci | |
469 // | |
470 // Get the ciCallProfile for the invocation of this method. | |
471 // Also reports receiver types for non-call type checks (if TypeProfileCasts). | |
472 ciCallProfile ciMethod::call_profile_at_bci(int bci) { | |
473 ResourceMark rm; | |
474 ciCallProfile result; | |
475 if (method_data() != NULL && method_data()->is_mature()) { | |
476 ciProfileData* data = method_data()->bci_to_data(bci); | |
477 if (data != NULL && data->is_CounterData()) { | |
478 // Every profiled call site has a counter. | |
479 int count = data->as_CounterData()->count(); | |
480 | |
481 if (!data->is_ReceiverTypeData()) { | |
482 result._receiver_count[0] = 0; // that's a definite zero | |
483 } else { // ReceiverTypeData is a subclass of CounterData | |
484 ciReceiverTypeData* call = (ciReceiverTypeData*)data->as_ReceiverTypeData(); | |
485 // In addition, virtual call sites have receiver type information | |
486 int receivers_count_total = 0; | |
487 int morphism = 0; | |
1783 | 488 // Precompute morphism for the possible fixup |
0 | 489 for (uint i = 0; i < call->row_limit(); i++) { |
490 ciKlass* receiver = call->receiver(i); | |
491 if (receiver == NULL) continue; | |
1783 | 492 morphism++; |
493 } | |
494 int epsilon = 0; | |
495 if (TieredCompilation && ProfileInterpreter) { | |
496 // Interpreter and C1 treat final and special invokes differently. | |
497 // C1 will record a type, whereas the interpreter will just | |
498 // increment the count. Detect this case. | |
499 if (morphism == 1 && count > 0) { | |
500 epsilon = count; | |
501 count = 0; | |
502 } | |
503 } | |
504 for (uint i = 0; i < call->row_limit(); i++) { | |
505 ciKlass* receiver = call->receiver(i); | |
506 if (receiver == NULL) continue; | |
507 int rcount = call->receiver_count(i) + epsilon; | |
0 | 508 if (rcount == 0) rcount = 1; // Should be valid value |
509 receivers_count_total += rcount; | |
510 // Add the receiver to result data. | |
511 result.add_receiver(receiver, rcount); | |
512 // If we extend profiling to record methods, | |
513 // we will set result._method also. | |
514 } | |
515 // Determine call site's morphism. | |
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516 // The call site count is 0 with known morphism (onlt 1 or 2 receivers) |
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517 // or < 0 in the case of a type check failured for checkcast, aastore, instanceof. |
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518 // The call site count is > 0 in the case of a polymorphic virtual call. |
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519 if (morphism > 0 && morphism == result._limit) { |
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520 // The morphism <= MorphismLimit. |
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521 if ((morphism < ciCallProfile::MorphismLimit) || |
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522 (morphism == ciCallProfile::MorphismLimit && count == 0)) { |
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523 #ifdef ASSERT |
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524 if (count > 0) { |
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525 this->print_short_name(tty); |
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526 tty->print_cr(" @ bci:%d", bci); |
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527 this->print_codes(); |
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528 assert(false, "this call site should not be polymorphic"); |
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529 } |
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530 #endif |
0 | 531 result._morphism = morphism; |
532 } | |
533 } | |
534 // Make the count consistent if this is a call profile. If count is | |
535 // zero or less, presume that this is a typecheck profile and | |
536 // do nothing. Otherwise, increase count to be the sum of all | |
537 // receiver's counts. | |
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538 if (count >= 0) { |
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539 count += receivers_count_total; |
0 | 540 } |
541 } | |
542 result._count = count; | |
543 } | |
544 } | |
545 return result; | |
546 } | |
547 | |
548 // ------------------------------------------------------------------ | |
549 // Add new receiver and sort data by receiver's profile count. | |
550 void ciCallProfile::add_receiver(ciKlass* receiver, int receiver_count) { | |
551 // Add new receiver and sort data by receiver's counts when we have space | |
552 // for it otherwise replace the less called receiver (less called receiver | |
553 // is placed to the last array element which is not used). | |
554 // First array's element contains most called receiver. | |
555 int i = _limit; | |
556 for (; i > 0 && receiver_count > _receiver_count[i-1]; i--) { | |
557 _receiver[i] = _receiver[i-1]; | |
558 _receiver_count[i] = _receiver_count[i-1]; | |
559 } | |
560 _receiver[i] = receiver; | |
561 _receiver_count[i] = receiver_count; | |
562 if (_limit < MorphismLimit) _limit++; | |
563 } | |
564 | |
565 // ------------------------------------------------------------------ | |
566 // ciMethod::find_monomorphic_target | |
567 // | |
568 // Given a certain calling environment, find the monomorphic target | |
569 // for the call. Return NULL if the call is not monomorphic in | |
570 // its calling environment, or if there are only abstract methods. | |
571 // The returned method is never abstract. | |
572 // Note: If caller uses a non-null result, it must inform dependencies | |
573 // via assert_unique_concrete_method or assert_leaf_type. | |
574 ciMethod* ciMethod::find_monomorphic_target(ciInstanceKlass* caller, | |
575 ciInstanceKlass* callee_holder, | |
576 ciInstanceKlass* actual_recv) { | |
577 check_is_loaded(); | |
578 | |
579 if (actual_recv->is_interface()) { | |
580 // %%% We cannot trust interface types, yet. See bug 6312651. | |
581 return NULL; | |
582 } | |
583 | |
584 ciMethod* root_m = resolve_invoke(caller, actual_recv); | |
585 if (root_m == NULL) { | |
586 // Something went wrong looking up the actual receiver method. | |
587 return NULL; | |
588 } | |
589 assert(!root_m->is_abstract(), "resolve_invoke promise"); | |
590 | |
591 // Make certain quick checks even if UseCHA is false. | |
592 | |
593 // Is it private or final? | |
594 if (root_m->can_be_statically_bound()) { | |
595 return root_m; | |
596 } | |
597 | |
598 if (actual_recv->is_leaf_type() && actual_recv == root_m->holder()) { | |
599 // Easy case. There is no other place to put a method, so don't bother | |
600 // to go through the VM_ENTRY_MARK and all the rest. | |
601 return root_m; | |
602 } | |
603 | |
604 // Array methods (clone, hashCode, etc.) are always statically bound. | |
605 // If we were to see an array type here, we'd return root_m. | |
606 // However, this method processes only ciInstanceKlasses. (See 4962591.) | |
607 // The inline_native_clone intrinsic narrows Object to T[] properly, | |
608 // so there is no need to do the same job here. | |
609 | |
610 if (!UseCHA) return NULL; | |
611 | |
612 VM_ENTRY_MARK; | |
613 | |
614 methodHandle target; | |
615 { | |
616 MutexLocker locker(Compile_lock); | |
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617 Klass* context = actual_recv->get_Klass(); |
0 | 618 target = Dependencies::find_unique_concrete_method(context, |
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619 root_m->get_Method()); |
0 | 620 // %%% Should upgrade this ciMethod API to look for 1 or 2 concrete methods. |
621 } | |
622 | |
623 #ifndef PRODUCT | |
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624 if (TraceDependencies && target() != NULL && target() != root_m->get_Method()) { |
0 | 625 tty->print("found a non-root unique target method"); |
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626 tty->print_cr(" context = %s", InstanceKlass::cast(actual_recv->get_Klass())->external_name()); |
0 | 627 tty->print(" method = "); |
628 target->print_short_name(tty); | |
629 tty->cr(); | |
630 } | |
631 #endif //PRODUCT | |
632 | |
633 if (target() == NULL) { | |
634 return NULL; | |
635 } | |
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636 if (target() == root_m->get_Method()) { |
0 | 637 return root_m; |
638 } | |
639 if (!root_m->is_public() && | |
640 !root_m->is_protected()) { | |
641 // If we are going to reason about inheritance, it's easiest | |
642 // if the method in question is public, protected, or private. | |
643 // If the answer is not root_m, it is conservatively correct | |
644 // to return NULL, even if the CHA encountered irrelevant | |
645 // methods in other packages. | |
646 // %%% TO DO: Work out logic for package-private methods | |
647 // with the same name but different vtable indexes. | |
648 return NULL; | |
649 } | |
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650 return CURRENT_THREAD_ENV->get_method(target()); |
0 | 651 } |
652 | |
653 // ------------------------------------------------------------------ | |
654 // ciMethod::resolve_invoke | |
655 // | |
656 // Given a known receiver klass, find the target for the call. | |
657 // Return NULL if the call has no target or the target is abstract. | |
658 ciMethod* ciMethod::resolve_invoke(ciKlass* caller, ciKlass* exact_receiver) { | |
659 check_is_loaded(); | |
660 VM_ENTRY_MARK; | |
661 | |
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662 KlassHandle caller_klass (THREAD, caller->get_Klass()); |
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663 KlassHandle h_recv (THREAD, exact_receiver->get_Klass()); |
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664 KlassHandle h_resolved (THREAD, holder()->get_Klass()); |
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665 Symbol* h_name = name()->get_symbol(); |
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666 Symbol* h_signature = signature()->get_symbol(); |
0 | 667 |
668 methodHandle m; | |
669 // Only do exact lookup if receiver klass has been linked. Otherwise, | |
670 // the vtable has not been setup, and the LinkResolver will fail. | |
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671 if (h_recv->oop_is_array() |
0 | 672 || |
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673 InstanceKlass::cast(h_recv())->is_linked() && !exact_receiver->is_interface()) { |
0 | 674 if (holder()->is_interface()) { |
675 m = LinkResolver::resolve_interface_call_or_null(h_recv, h_resolved, h_name, h_signature, caller_klass); | |
676 } else { | |
677 m = LinkResolver::resolve_virtual_call_or_null(h_recv, h_resolved, h_name, h_signature, caller_klass); | |
678 } | |
679 } | |
680 | |
681 if (m.is_null()) { | |
682 // Return NULL only if there was a problem with lookup (uninitialized class, etc.) | |
683 return NULL; | |
684 } | |
685 | |
686 ciMethod* result = this; | |
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687 if (m() != get_Method()) { |
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688 result = CURRENT_THREAD_ENV->get_method(m()); |
0 | 689 } |
690 | |
691 // Don't return abstract methods because they aren't | |
692 // optimizable or interesting. | |
693 if (result->is_abstract()) { | |
694 return NULL; | |
695 } else { | |
696 return result; | |
697 } | |
698 } | |
699 | |
700 // ------------------------------------------------------------------ | |
701 // ciMethod::resolve_vtable_index | |
702 // | |
703 // Given a known receiver klass, find the vtable index for the call. | |
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704 // Return Method::invalid_vtable_index if the vtable_index is unknown. |
0 | 705 int ciMethod::resolve_vtable_index(ciKlass* caller, ciKlass* receiver) { |
706 check_is_loaded(); | |
707 | |
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708 int vtable_index = Method::invalid_vtable_index; |
0 | 709 // Only do lookup if receiver klass has been linked. Otherwise, |
710 // the vtable has not been setup, and the LinkResolver will fail. | |
711 if (!receiver->is_interface() | |
712 && (!receiver->is_instance_klass() || | |
713 receiver->as_instance_klass()->is_linked())) { | |
714 VM_ENTRY_MARK; | |
715 | |
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716 KlassHandle caller_klass (THREAD, caller->get_Klass()); |
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717 KlassHandle h_recv (THREAD, receiver->get_Klass()); |
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718 Symbol* h_name = name()->get_symbol(); |
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719 Symbol* h_signature = signature()->get_symbol(); |
0 | 720 |
721 vtable_index = LinkResolver::resolve_virtual_vtable_index(h_recv, h_recv, h_name, h_signature, caller_klass); | |
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722 if (vtable_index == Method::nonvirtual_vtable_index) { |
0 | 723 // A statically bound method. Return "no such index". |
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724 vtable_index = Method::invalid_vtable_index; |
0 | 725 } |
726 } | |
727 | |
728 return vtable_index; | |
729 } | |
730 | |
731 // ------------------------------------------------------------------ | |
732 // ciMethod::interpreter_call_site_count | |
733 int ciMethod::interpreter_call_site_count(int bci) { | |
734 if (method_data() != NULL) { | |
735 ResourceMark rm; | |
736 ciProfileData* data = method_data()->bci_to_data(bci); | |
737 if (data != NULL && data->is_CounterData()) { | |
738 return scale_count(data->as_CounterData()->count()); | |
739 } | |
740 } | |
741 return -1; // unknown | |
742 } | |
743 | |
744 // ------------------------------------------------------------------ | |
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745 // ciMethod::get_field_at_bci |
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746 ciField* ciMethod::get_field_at_bci(int bci, bool &will_link) { |
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747 ciBytecodeStream iter(this); |
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748 iter.reset_to_bci(bci); |
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749 iter.next(); |
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750 return iter.get_field(will_link); |
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751 } |
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752 |
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753 // ------------------------------------------------------------------ |
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754 // ciMethod::get_method_at_bci |
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755 ciMethod* ciMethod::get_method_at_bci(int bci, bool &will_link, ciSignature* *declared_signature) { |
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756 ciBytecodeStream iter(this); |
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757 iter.reset_to_bci(bci); |
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758 iter.next(); |
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759 return iter.get_method(will_link, declared_signature); |
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760 } |
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761 |
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762 // ------------------------------------------------------------------ |
0 | 763 // Adjust a CounterData count to be commensurate with |
764 // interpreter_invocation_count. If the MDO exists for | |
765 // only 25% of the time the method exists, then the | |
766 // counts in the MDO should be scaled by 4X, so that | |
767 // they can be usefully and stably compared against the | |
768 // invocation counts in methods. | |
769 int ciMethod::scale_count(int count, float prof_factor) { | |
770 if (count > 0 && method_data() != NULL) { | |
1783 | 771 int counter_life; |
0 | 772 int method_life = interpreter_invocation_count(); |
1783 | 773 if (TieredCompilation) { |
774 // In tiered the MDO's life is measured directly, so just use the snapshotted counters | |
775 counter_life = MAX2(method_data()->invocation_count(), method_data()->backedge_count()); | |
776 } else { | |
777 int current_mileage = method_data()->current_mileage(); | |
778 int creation_mileage = method_data()->creation_mileage(); | |
779 counter_life = current_mileage - creation_mileage; | |
780 } | |
781 | |
0 | 782 // counter_life due to backedge_counter could be > method_life |
783 if (counter_life > method_life) | |
784 counter_life = method_life; | |
785 if (0 < counter_life && counter_life <= method_life) { | |
786 count = (int)((double)count * prof_factor * method_life / counter_life + 0.5); | |
787 count = (count > 0) ? count : 1; | |
788 } | |
789 } | |
790 return count; | |
791 } | |
792 | |
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793 |
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794 // ------------------------------------------------------------------ |
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795 // ciMethod::is_special_get_caller_class_method |
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796 // |
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797 bool ciMethod::is_ignored_by_security_stack_walk() const { |
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798 check_is_loaded(); |
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799 VM_ENTRY_MARK; |
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800 return get_Method()->is_ignored_by_security_stack_walk(); |
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801 } |
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802 |
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803 |
0 | 804 // ------------------------------------------------------------------ |
710 | 805 // invokedynamic support |
1564 | 806 |
807 // ------------------------------------------------------------------ | |
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808 // ciMethod::is_method_handle_intrinsic |
710 | 809 // |
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810 // Return true if the method is an instance of the JVM-generated |
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811 // signature-polymorphic MethodHandle methods, _invokeBasic, _linkToVirtual, etc. |
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812 bool ciMethod::is_method_handle_intrinsic() const { |
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813 vmIntrinsics::ID iid = _intrinsic_id; // do not check if loaded |
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814 return (MethodHandles::is_signature_polymorphic(iid) && |
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815 MethodHandles::is_signature_polymorphic_intrinsic(iid)); |
710 | 816 } |
817 | |
1564 | 818 // ------------------------------------------------------------------ |
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819 // ciMethod::is_compiled_lambda_form |
1564 | 820 // |
821 // Return true if the method is a generated MethodHandle adapter. | |
6266
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822 // These are built by Java code. |
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823 bool ciMethod::is_compiled_lambda_form() const { |
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824 vmIntrinsics::ID iid = _intrinsic_id; // do not check if loaded |
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825 return iid == vmIntrinsics::_compiledLambdaForm; |
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826 } |
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827 |
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828 // ------------------------------------------------------------------ |
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829 // ciMethod::has_member_arg |
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830 // |
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831 // Return true if the method is a linker intrinsic like _linkToVirtual. |
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832 // These are built by the JVM. |
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833 bool ciMethod::has_member_arg() const { |
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834 vmIntrinsics::ID iid = _intrinsic_id; // do not check if loaded |
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835 return (MethodHandles::is_signature_polymorphic(iid) && |
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836 MethodHandles::has_member_arg(iid)); |
710 | 837 } |
838 | |
839 // ------------------------------------------------------------------ | |
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840 // ciMethod::ensure_method_data |
0 | 841 // |
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842 // Generate new MethodData* objects at compile time. |
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843 // Return true if allocation was successful or no MDO is required. |
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844 bool ciMethod::ensure_method_data(methodHandle h_m) { |
0 | 845 EXCEPTION_CONTEXT; |
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846 if (is_native() || is_abstract() || h_m()->is_accessor()) return true; |
0 | 847 if (h_m()->method_data() == NULL) { |
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848 Method::build_interpreter_method_data(h_m, THREAD); |
0 | 849 if (HAS_PENDING_EXCEPTION) { |
850 CLEAR_PENDING_EXCEPTION; | |
851 } | |
852 } | |
853 if (h_m()->method_data() != NULL) { | |
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854 _method_data = CURRENT_ENV->get_method_data(h_m()->method_data()); |
0 | 855 _method_data->load_data(); |
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856 return true; |
0 | 857 } else { |
858 _method_data = CURRENT_ENV->get_empty_methodData(); | |
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859 return false; |
0 | 860 } |
861 } | |
862 | |
863 // public, retroactive version | |
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864 bool ciMethod::ensure_method_data() { |
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865 bool result = true; |
0 | 866 if (_method_data == NULL || _method_data->is_empty()) { |
867 GUARDED_VM_ENTRY({ | |
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868 result = ensure_method_data(get_Method()); |
0 | 869 }); |
870 } | |
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871 return result; |
0 | 872 } |
873 | |
874 | |
875 // ------------------------------------------------------------------ | |
876 // ciMethod::method_data | |
877 // | |
878 ciMethodData* ciMethod::method_data() { | |
879 if (_method_data != NULL) { | |
880 return _method_data; | |
881 } | |
882 VM_ENTRY_MARK; | |
883 ciEnv* env = CURRENT_ENV; | |
884 Thread* my_thread = JavaThread::current(); | |
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885 methodHandle h_m(my_thread, get_Method()); |
0 | 886 |
887 if (h_m()->method_data() != NULL) { | |
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888 _method_data = CURRENT_ENV->get_method_data(h_m()->method_data()); |
0 | 889 _method_data->load_data(); |
890 } else { | |
891 _method_data = CURRENT_ENV->get_empty_methodData(); | |
892 } | |
893 return _method_data; | |
894 | |
895 } | |
896 | |
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897 // ------------------------------------------------------------------ |
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898 // ciMethod::method_data_or_null |
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899 // Returns a pointer to ciMethodData if MDO exists on the VM side, |
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900 // NULL otherwise. |
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901 ciMethodData* ciMethod::method_data_or_null() { |
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902 ciMethodData *md = method_data(); |
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903 if (md->is_empty()) return NULL; |
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904 return md; |
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905 } |
0 | 906 |
907 // ------------------------------------------------------------------ | |
908 // ciMethod::should_exclude | |
909 // | |
910 // Should this method be excluded from compilation? | |
911 bool ciMethod::should_exclude() { | |
912 check_is_loaded(); | |
913 VM_ENTRY_MARK; | |
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914 methodHandle mh(THREAD, get_Method()); |
0 | 915 bool ignore; |
916 return CompilerOracle::should_exclude(mh, ignore); | |
917 } | |
918 | |
919 // ------------------------------------------------------------------ | |
920 // ciMethod::should_inline | |
921 // | |
922 // Should this method be inlined during compilation? | |
923 bool ciMethod::should_inline() { | |
924 check_is_loaded(); | |
925 VM_ENTRY_MARK; | |
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926 methodHandle mh(THREAD, get_Method()); |
0 | 927 return CompilerOracle::should_inline(mh); |
928 } | |
929 | |
930 // ------------------------------------------------------------------ | |
931 // ciMethod::should_not_inline | |
932 // | |
933 // Should this method be disallowed from inlining during compilation? | |
934 bool ciMethod::should_not_inline() { | |
935 check_is_loaded(); | |
936 VM_ENTRY_MARK; | |
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937 methodHandle mh(THREAD, get_Method()); |
0 | 938 return CompilerOracle::should_not_inline(mh); |
939 } | |
940 | |
941 // ------------------------------------------------------------------ | |
942 // ciMethod::should_print_assembly | |
943 // | |
944 // Should the compiler print the generated code for this method? | |
945 bool ciMethod::should_print_assembly() { | |
946 check_is_loaded(); | |
947 VM_ENTRY_MARK; | |
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948 methodHandle mh(THREAD, get_Method()); |
0 | 949 return CompilerOracle::should_print(mh); |
950 } | |
951 | |
952 // ------------------------------------------------------------------ | |
953 // ciMethod::break_at_execute | |
954 // | |
955 // Should the compiler insert a breakpoint into the generated code | |
956 // method? | |
957 bool ciMethod::break_at_execute() { | |
958 check_is_loaded(); | |
959 VM_ENTRY_MARK; | |
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960 methodHandle mh(THREAD, get_Method()); |
0 | 961 return CompilerOracle::should_break_at(mh); |
962 } | |
963 | |
964 // ------------------------------------------------------------------ | |
965 // ciMethod::has_option | |
966 // | |
967 bool ciMethod::has_option(const char* option) { | |
968 check_is_loaded(); | |
969 VM_ENTRY_MARK; | |
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970 methodHandle mh(THREAD, get_Method()); |
0 | 971 return CompilerOracle::has_option_string(mh, option); |
972 } | |
973 | |
974 // ------------------------------------------------------------------ | |
975 // ciMethod::can_be_compiled | |
976 // | |
977 // Have previous compilations of this method succeeded? | |
978 bool ciMethod::can_be_compiled() { | |
979 check_is_loaded(); | |
1783 | 980 ciEnv* env = CURRENT_ENV; |
981 if (is_c1_compile(env->comp_level())) { | |
982 return _is_c1_compilable; | |
983 } | |
984 return _is_c2_compilable; | |
0 | 985 } |
986 | |
987 // ------------------------------------------------------------------ | |
988 // ciMethod::set_not_compilable | |
989 // | |
990 // Tell the VM that this method cannot be compiled at all. | |
7998 | 991 void ciMethod::set_not_compilable(const char* reason) { |
0 | 992 check_is_loaded(); |
993 VM_ENTRY_MARK; | |
1783 | 994 ciEnv* env = CURRENT_ENV; |
995 if (is_c1_compile(env->comp_level())) { | |
996 _is_c1_compilable = false; | |
997 } else { | |
998 _is_c2_compilable = false; | |
999 } | |
7998 | 1000 get_Method()->set_not_compilable(env->comp_level(), true, reason); |
0 | 1001 } |
1002 | |
1003 // ------------------------------------------------------------------ | |
1004 // ciMethod::can_be_osr_compiled | |
1005 // | |
1006 // Have previous compilations of this method succeeded? | |
1007 // | |
1008 // Implementation note: the VM does not currently keep track | |
1009 // of failed OSR compilations per bci. The entry_bci parameter | |
1010 // is currently unused. | |
1011 bool ciMethod::can_be_osr_compiled(int entry_bci) { | |
1012 check_is_loaded(); | |
1013 VM_ENTRY_MARK; | |
1783 | 1014 ciEnv* env = CURRENT_ENV; |
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1015 return !get_Method()->is_not_osr_compilable(env->comp_level()); |
0 | 1016 } |
1017 | |
1018 // ------------------------------------------------------------------ | |
1019 // ciMethod::has_compiled_code | |
1020 bool ciMethod::has_compiled_code() { | |
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1021 return instructions_size() > 0; |
0 | 1022 } |
1023 | |
1783 | 1024 int ciMethod::comp_level() { |
1025 check_is_loaded(); | |
1026 VM_ENTRY_MARK; | |
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1027 nmethod* nm = get_Method()->code(); |
1783 | 1028 if (nm != NULL) return nm->comp_level(); |
1029 return 0; | |
1030 } | |
1031 | |
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1032 int ciMethod::highest_osr_comp_level() { |
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1033 check_is_loaded(); |
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1034 VM_ENTRY_MARK; |
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1035 return get_Method()->highest_osr_comp_level(); |
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1036 } |
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1037 |
0 | 1038 // ------------------------------------------------------------------ |
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1039 // ciMethod::code_size_for_inlining |
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1040 // |
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1041 // Code size for inlining decisions. This method returns a code |
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1042 // size of 1 for methods which has the ForceInline annotation. |
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1043 int ciMethod::code_size_for_inlining() { |
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1044 check_is_loaded(); |
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1045 if (get_Method()->force_inline()) { |
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1046 return 1; |
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1047 } |
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1048 return code_size(); |
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1049 } |
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1050 |
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1051 // ------------------------------------------------------------------ |
0 | 1052 // ciMethod::instructions_size |
1748 | 1053 // |
1054 // This is a rough metric for "fat" methods, compared before inlining | |
1055 // with InlineSmallCode. The CodeBlob::code_size accessor includes | |
1056 // junk like exception handler, stubs, and constant table, which are | |
1057 // not highly relevant to an inlined method. So we use the more | |
1058 // specific accessor nmethod::insts_size. | |
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1059 int ciMethod::instructions_size() { |
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1060 if (_instructions_size == -1) { |
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1061 GUARDED_VM_ENTRY( |
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1062 nmethod* code = get_Method()->code(); |
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1063 if (code != NULL && (code->comp_level() == CompLevel_full_optimization)) { |
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1064 _instructions_size = code->insts_end() - code->verified_entry_point(); |
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1065 } else { |
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1066 _instructions_size = 0; |
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1067 } |
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1068 ); |
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1069 } |
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1070 return _instructions_size; |
0 | 1071 } |
1072 | |
1073 // ------------------------------------------------------------------ | |
1074 // ciMethod::log_nmethod_identity | |
1075 void ciMethod::log_nmethod_identity(xmlStream* log) { | |
1076 GUARDED_VM_ENTRY( | |
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1077 nmethod* code = get_Method()->code(); |
0 | 1078 if (code != NULL) { |
1079 code->log_identity(log); | |
1080 } | |
1081 ) | |
1082 } | |
1083 | |
1084 // ------------------------------------------------------------------ | |
1085 // ciMethod::is_not_reached | |
1086 bool ciMethod::is_not_reached(int bci) { | |
1087 check_is_loaded(); | |
1088 VM_ENTRY_MARK; | |
1089 return Interpreter::is_not_reached( | |
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1090 methodHandle(THREAD, get_Method()), bci); |
0 | 1091 } |
1092 | |
1093 // ------------------------------------------------------------------ | |
1094 // ciMethod::was_never_executed | |
1095 bool ciMethod::was_executed_more_than(int times) { | |
1096 VM_ENTRY_MARK; | |
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1097 return get_Method()->was_executed_more_than(times); |
0 | 1098 } |
1099 | |
1100 // ------------------------------------------------------------------ | |
1101 // ciMethod::has_unloaded_classes_in_signature | |
1102 bool ciMethod::has_unloaded_classes_in_signature() { | |
1103 VM_ENTRY_MARK; | |
1104 { | |
1105 EXCEPTION_MARK; | |
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1106 methodHandle m(THREAD, get_Method()); |
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1107 bool has_unloaded = Method::has_unloaded_classes_in_signature(m, (JavaThread *)THREAD); |
0 | 1108 if( HAS_PENDING_EXCEPTION ) { |
1109 CLEAR_PENDING_EXCEPTION; | |
1110 return true; // Declare that we may have unloaded classes | |
1111 } | |
1112 return has_unloaded; | |
1113 } | |
1114 } | |
1115 | |
1116 // ------------------------------------------------------------------ | |
1117 // ciMethod::is_klass_loaded | |
1118 bool ciMethod::is_klass_loaded(int refinfo_index, bool must_be_resolved) const { | |
1119 VM_ENTRY_MARK; | |
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1120 return get_Method()->is_klass_loaded(refinfo_index, must_be_resolved); |
0 | 1121 } |
1122 | |
1123 // ------------------------------------------------------------------ | |
1124 // ciMethod::check_call | |
1125 bool ciMethod::check_call(int refinfo_index, bool is_static) const { | |
1126 VM_ENTRY_MARK; | |
1127 { | |
1128 EXCEPTION_MARK; | |
1129 HandleMark hm(THREAD); | |
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1130 constantPoolHandle pool (THREAD, get_Method()->constants()); |
0 | 1131 methodHandle spec_method; |
1132 KlassHandle spec_klass; | |
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1133 Bytecodes::Code code = (is_static ? Bytecodes::_invokestatic : Bytecodes::_invokevirtual); |
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1134 LinkResolver::resolve_method_statically(spec_method, spec_klass, code, pool, refinfo_index, THREAD); |
0 | 1135 if (HAS_PENDING_EXCEPTION) { |
1136 CLEAR_PENDING_EXCEPTION; | |
1137 return false; | |
1138 } else { | |
1139 return (spec_method->is_static() == is_static); | |
1140 } | |
1141 } | |
1142 return false; | |
1143 } | |
1144 | |
1145 // ------------------------------------------------------------------ | |
1146 // ciMethod::print_codes | |
1147 // | |
1148 // Print the bytecodes for this method. | |
1149 void ciMethod::print_codes_on(outputStream* st) { | |
1150 check_is_loaded(); | |
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1151 GUARDED_VM_ENTRY(get_Method()->print_codes_on(st);) |
0 | 1152 } |
1153 | |
1154 | |
1155 #define FETCH_FLAG_FROM_VM(flag_accessor) { \ | |
1156 check_is_loaded(); \ | |
1157 VM_ENTRY_MARK; \ | |
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1158 return get_Method()->flag_accessor(); \ |
0 | 1159 } |
1160 | |
1161 bool ciMethod::is_empty_method() const { FETCH_FLAG_FROM_VM(is_empty_method); } | |
1162 bool ciMethod::is_vanilla_constructor() const { FETCH_FLAG_FROM_VM(is_vanilla_constructor); } | |
1163 bool ciMethod::has_loops () const { FETCH_FLAG_FROM_VM(has_loops); } | |
1164 bool ciMethod::has_jsrs () const { FETCH_FLAG_FROM_VM(has_jsrs); } | |
1165 bool ciMethod::is_accessor () const { FETCH_FLAG_FROM_VM(is_accessor); } | |
1166 bool ciMethod::is_initializer () const { FETCH_FLAG_FROM_VM(is_initializer); } | |
1167 | |
1168 BCEscapeAnalyzer *ciMethod::get_bcea() { | |
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1169 #ifdef COMPILER2 |
0 | 1170 if (_bcea == NULL) { |
1171 _bcea = new (CURRENT_ENV->arena()) BCEscapeAnalyzer(this, NULL); | |
1172 } | |
1173 return _bcea; | |
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1174 #else // COMPILER2 |
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1175 ShouldNotReachHere(); |
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1176 return NULL; |
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1177 #endif // COMPILER2 |
0 | 1178 } |
1179 | |
1180 ciMethodBlocks *ciMethod::get_method_blocks() { | |
1181 Arena *arena = CURRENT_ENV->arena(); | |
1182 if (_method_blocks == NULL) { | |
1183 _method_blocks = new (arena) ciMethodBlocks(arena, this); | |
1184 } | |
1185 return _method_blocks; | |
1186 } | |
1187 | |
1188 #undef FETCH_FLAG_FROM_VM | |
1189 | |
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1190 void ciMethod::dump_replay_data(outputStream* st) { |
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1191 ASSERT_IN_VM; |
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1192 ResourceMark rm; |
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1193 Method* method = get_Method(); |
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1194 Klass* holder = method->method_holder(); |
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1195 st->print_cr("ciMethod %s %s %s %d %d %d %d %d", |
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1196 holder->name()->as_quoted_ascii(), |
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1197 method->name()->as_quoted_ascii(), |
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1198 method->signature()->as_quoted_ascii(), |
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1199 method->invocation_counter()->raw_counter(), |
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1200 method->backedge_counter()->raw_counter(), |
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1201 interpreter_invocation_count(), |
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1202 interpreter_throwout_count(), |
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1203 _instructions_size); |
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1204 } |
0 | 1205 |
1206 // ------------------------------------------------------------------ | |
1207 // ciMethod::print_codes | |
1208 // | |
1209 // Print a range of the bytecodes for this method. | |
1210 void ciMethod::print_codes_on(int from, int to, outputStream* st) { | |
1211 check_is_loaded(); | |
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1212 GUARDED_VM_ENTRY(get_Method()->print_codes_on(from, to, st);) |
0 | 1213 } |
1214 | |
1215 // ------------------------------------------------------------------ | |
1216 // ciMethod::print_name | |
1217 // | |
1218 // Print the name of this method, including signature and some flags. | |
1219 void ciMethod::print_name(outputStream* st) { | |
1220 check_is_loaded(); | |
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1221 GUARDED_VM_ENTRY(get_Method()->print_name(st);) |
0 | 1222 } |
1223 | |
1224 // ------------------------------------------------------------------ | |
1225 // ciMethod::print_short_name | |
1226 // | |
1227 // Print the name of this method, without signature. | |
1228 void ciMethod::print_short_name(outputStream* st) { | |
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1229 if (is_loaded()) { |
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1230 GUARDED_VM_ENTRY(get_Method()->print_short_name(st);); |
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1231 } else { |
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1232 // Fall back if method is not loaded. |
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1233 holder()->print_name_on(st); |
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1234 st->print("::"); |
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1235 name()->print_symbol_on(st); |
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1236 if (WizardMode) |
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1237 signature()->as_symbol()->print_symbol_on(st); |
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1238 } |
0 | 1239 } |
1240 | |
1241 // ------------------------------------------------------------------ | |
1242 // ciMethod::print_impl | |
1243 // | |
1244 // Implementation of the print method. | |
1245 void ciMethod::print_impl(outputStream* st) { | |
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1246 ciMetadata::print_impl(st); |
0 | 1247 st->print(" name="); |
1248 name()->print_symbol_on(st); | |
1249 st->print(" holder="); | |
1250 holder()->print_name_on(st); | |
1251 st->print(" signature="); | |
1252 signature()->as_symbol()->print_symbol_on(st); | |
1253 if (is_loaded()) { | |
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1254 st->print(" loaded=true"); |
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1255 st->print(" arg_size=%d", arg_size()); |
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1256 st->print(" flags="); |
0 | 1257 flags().print_member_flags(st); |
1258 } else { | |
1259 st->print(" loaded=false"); | |
1260 } | |
1261 } |