Mercurial > hg > truffle
annotate src/share/vm/oops/methodData.hpp @ 12355:cefad50507d8
Merge with hs25-b53
author | Gilles Duboscq <duboscq@ssw.jku.at> |
---|---|
date | Fri, 11 Oct 2013 10:38:03 +0200 |
parents | 836a62f43af9 190899198332 |
children | 096c224171c4 |
rev | line source |
---|---|
0 | 1 /* |
7956 | 2 * Copyright (c) 2000, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1251
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1251
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1251
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_OOPS_METHODDATAOOP_HPP |
26 #define SHARE_VM_OOPS_METHODDATAOOP_HPP | |
27 | |
28 #include "interpreter/bytecodes.hpp" | |
29 #include "memory/universe.hpp" | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
30 #include "oops/method.hpp" |
1972 | 31 #include "oops/oop.hpp" |
32 #include "runtime/orderAccess.hpp" | |
33 | |
0 | 34 class BytecodeStream; |
7956 | 35 class KlassSizeStats; |
0 | 36 |
37 // The MethodData object collects counts and other profile information | |
38 // during zeroth-tier (interpretive) and first-tier execution. | |
39 // The profile is used later by compilation heuristics. Some heuristics | |
40 // enable use of aggressive (or "heroic") optimizations. An aggressive | |
41 // optimization often has a down-side, a corner case that it handles | |
42 // poorly, but which is thought to be rare. The profile provides | |
43 // evidence of this rarity for a given method or even BCI. It allows | |
44 // the compiler to back out of the optimization at places where it | |
45 // has historically been a poor choice. Other heuristics try to use | |
46 // specific information gathered about types observed at a given site. | |
47 // | |
48 // All data in the profile is approximate. It is expected to be accurate | |
49 // on the whole, but the system expects occasional inaccuraces, due to | |
50 // counter overflow, multiprocessor races during data collection, space | |
51 // limitations, missing MDO blocks, etc. Bad or missing data will degrade | |
52 // optimization quality but will not affect correctness. Also, each MDO | |
53 // is marked with its birth-date ("creation_mileage") which can be used | |
54 // to assess the quality ("maturity") of its data. | |
55 // | |
56 // Short (<32-bit) counters are designed to overflow to a known "saturated" | |
57 // state. Also, certain recorded per-BCI events are given one-bit counters | |
58 // which overflow to a saturated state which applied to all counters at | |
59 // that BCI. In other words, there is a small lattice which approximates | |
60 // the ideal of an infinite-precision counter for each event at each BCI, | |
61 // and the lattice quickly "bottoms out" in a state where all counters | |
62 // are taken to be indefinitely large. | |
63 // | |
64 // The reader will find many data races in profile gathering code, starting | |
65 // with invocation counter incrementation. None of these races harm correct | |
66 // execution of the compiled code. | |
67 | |
941 | 68 // forward decl |
69 class ProfileData; | |
70 | |
0 | 71 // DataLayout |
72 // | |
73 // Overlay for generic profiling data. | |
74 class DataLayout VALUE_OBJ_CLASS_SPEC { | |
12258
69f26e8e09f9
8024760: add more types, fields and constants to VMStructs
twisti
parents:
10265
diff
changeset
|
75 friend class VMStructs; |
69f26e8e09f9
8024760: add more types, fields and constants to VMStructs
twisti
parents:
10265
diff
changeset
|
76 |
0 | 77 private: |
78 // Every data layout begins with a header. This header | |
79 // contains a tag, which is used to indicate the size/layout | |
80 // of the data, 4 bits of flags, which can be used in any way, | |
81 // 4 bits of trap history (none/one reason/many reasons), | |
82 // and a bci, which is used to tie this piece of data to a | |
83 // specific bci in the bytecodes. | |
84 union { | |
85 intptr_t _bits; | |
86 struct { | |
87 u1 _tag; | |
88 u1 _flags; | |
89 u2 _bci; | |
90 } _struct; | |
91 } _header; | |
92 | |
93 // The data layout has an arbitrary number of cells, each sized | |
94 // to accomodate a pointer or an integer. | |
95 intptr_t _cells[1]; | |
96 | |
97 // Some types of data layouts need a length field. | |
98 static bool needs_array_len(u1 tag); | |
99 | |
100 public: | |
101 enum { | |
102 counter_increment = 1 | |
103 }; | |
104 | |
105 enum { | |
106 cell_size = sizeof(intptr_t) | |
107 }; | |
108 | |
109 // Tag values | |
110 enum { | |
111 no_tag, | |
112 bit_data_tag, | |
113 counter_data_tag, | |
114 jump_data_tag, | |
115 receiver_type_data_tag, | |
116 virtual_call_data_tag, | |
117 ret_data_tag, | |
118 branch_data_tag, | |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
119 multi_branch_data_tag, |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
120 arg_info_data_tag |
0 | 121 }; |
122 | |
123 enum { | |
124 // The _struct._flags word is formatted as [trap_state:4 | flags:4]. | |
125 // The trap state breaks down further as [recompile:1 | reason:3]. | |
126 // This further breakdown is defined in deoptimization.cpp. | |
127 // See Deoptimization::trap_state_reason for an assert that | |
128 // trap_bits is big enough to hold reasons < Reason_RECORDED_LIMIT. | |
129 // | |
130 // The trap_state is collected only if ProfileTraps is true. | |
131 trap_bits = 1+3, // 3: enough to distinguish [0..Reason_RECORDED_LIMIT]. | |
132 trap_shift = BitsPerByte - trap_bits, | |
133 trap_mask = right_n_bits(trap_bits), | |
134 trap_mask_in_place = (trap_mask << trap_shift), | |
135 flag_limit = trap_shift, | |
136 flag_mask = right_n_bits(flag_limit), | |
137 first_flag = 0 | |
138 }; | |
139 | |
140 // Size computation | |
141 static int header_size_in_bytes() { | |
142 return cell_size; | |
143 } | |
144 static int header_size_in_cells() { | |
145 return 1; | |
146 } | |
147 | |
148 static int compute_size_in_bytes(int cell_count) { | |
149 return header_size_in_bytes() + cell_count * cell_size; | |
150 } | |
151 | |
152 // Initialization | |
153 void initialize(u1 tag, u2 bci, int cell_count); | |
154 | |
155 // Accessors | |
156 u1 tag() { | |
157 return _header._struct._tag; | |
158 } | |
159 | |
160 // Return a few bits of trap state. Range is [0..trap_mask]. | |
161 // The state tells if traps with zero, one, or many reasons have occurred. | |
162 // It also tells whether zero or many recompilations have occurred. | |
163 // The associated trap histogram in the MDO itself tells whether | |
164 // traps are common or not. If a BCI shows that a trap X has | |
165 // occurred, and the MDO shows N occurrences of X, we make the | |
166 // simplifying assumption that all N occurrences can be blamed | |
167 // on that BCI. | |
168 int trap_state() { | |
169 return ((_header._struct._flags >> trap_shift) & trap_mask); | |
170 } | |
171 | |
172 void set_trap_state(int new_state) { | |
173 assert(ProfileTraps, "used only under +ProfileTraps"); | |
174 uint old_flags = (_header._struct._flags & flag_mask); | |
175 _header._struct._flags = (new_state << trap_shift) | old_flags; | |
176 } | |
177 | |
178 u1 flags() { | |
179 return _header._struct._flags; | |
180 } | |
181 | |
182 u2 bci() { | |
183 return _header._struct._bci; | |
184 } | |
185 | |
186 void set_header(intptr_t value) { | |
187 _header._bits = value; | |
188 } | |
189 void release_set_header(intptr_t value) { | |
190 OrderAccess::release_store_ptr(&_header._bits, value); | |
191 } | |
192 intptr_t header() { | |
193 return _header._bits; | |
194 } | |
195 void set_cell_at(int index, intptr_t value) { | |
196 _cells[index] = value; | |
197 } | |
198 void release_set_cell_at(int index, intptr_t value) { | |
199 OrderAccess::release_store_ptr(&_cells[index], value); | |
200 } | |
201 intptr_t cell_at(int index) { | |
202 return _cells[index]; | |
203 } | |
204 | |
205 void set_flag_at(int flag_number) { | |
206 assert(flag_number < flag_limit, "oob"); | |
207 _header._struct._flags |= (0x1 << flag_number); | |
208 } | |
209 bool flag_at(int flag_number) { | |
210 assert(flag_number < flag_limit, "oob"); | |
211 return (_header._struct._flags & (0x1 << flag_number)) != 0; | |
212 } | |
213 | |
214 // Low-level support for code generation. | |
215 static ByteSize header_offset() { | |
216 return byte_offset_of(DataLayout, _header); | |
217 } | |
218 static ByteSize tag_offset() { | |
219 return byte_offset_of(DataLayout, _header._struct._tag); | |
220 } | |
221 static ByteSize flags_offset() { | |
222 return byte_offset_of(DataLayout, _header._struct._flags); | |
223 } | |
224 static ByteSize bci_offset() { | |
225 return byte_offset_of(DataLayout, _header._struct._bci); | |
226 } | |
227 static ByteSize cell_offset(int index) { | |
2333
f767174aac14
7021653: Parfait issue in hotspot/src/share/vm/oops/methodDataOops.hpp
coleenp
parents:
2264
diff
changeset
|
228 return byte_offset_of(DataLayout, _cells) + in_ByteSize(index * cell_size); |
0 | 229 } |
230 // Return a value which, when or-ed as a byte into _flags, sets the flag. | |
231 static int flag_number_to_byte_constant(int flag_number) { | |
232 assert(0 <= flag_number && flag_number < flag_limit, "oob"); | |
233 DataLayout temp; temp.set_header(0); | |
234 temp.set_flag_at(flag_number); | |
235 return temp._header._struct._flags; | |
236 } | |
237 // Return a value which, when or-ed as a word into _header, sets the flag. | |
238 static intptr_t flag_mask_to_header_mask(int byte_constant) { | |
239 DataLayout temp; temp.set_header(0); | |
240 temp._header._struct._flags = byte_constant; | |
241 return temp._header._bits; | |
242 } | |
941 | 243 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
244 ProfileData* data_in(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
245 |
941 | 246 // GC support |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
247 void clean_weak_klass_links(BoolObjectClosure* cl); |
0 | 248 }; |
249 | |
250 | |
251 // ProfileData class hierarchy | |
252 class ProfileData; | |
253 class BitData; | |
254 class CounterData; | |
255 class ReceiverTypeData; | |
256 class VirtualCallData; | |
257 class RetData; | |
258 class JumpData; | |
259 class BranchData; | |
260 class ArrayData; | |
261 class MultiBranchData; | |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
262 class ArgInfoData; |
0 | 263 |
264 | |
265 // ProfileData | |
266 // | |
267 // A ProfileData object is created to refer to a section of profiling | |
268 // data in a structured way. | |
269 class ProfileData : public ResourceObj { | |
270 private: | |
271 #ifndef PRODUCT | |
272 enum { | |
273 tab_width_one = 16, | |
274 tab_width_two = 36 | |
275 }; | |
276 #endif // !PRODUCT | |
277 | |
278 // This is a pointer to a section of profiling data. | |
279 DataLayout* _data; | |
280 | |
281 protected: | |
282 DataLayout* data() { return _data; } | |
283 | |
284 enum { | |
285 cell_size = DataLayout::cell_size | |
286 }; | |
287 | |
288 public: | |
289 // How many cells are in this? | |
290 virtual int cell_count() { | |
291 ShouldNotReachHere(); | |
292 return -1; | |
293 } | |
294 | |
295 // Return the size of this data. | |
296 int size_in_bytes() { | |
297 return DataLayout::compute_size_in_bytes(cell_count()); | |
298 } | |
299 | |
300 protected: | |
301 // Low-level accessors for underlying data | |
302 void set_intptr_at(int index, intptr_t value) { | |
303 assert(0 <= index && index < cell_count(), "oob"); | |
304 data()->set_cell_at(index, value); | |
305 } | |
306 void release_set_intptr_at(int index, intptr_t value) { | |
307 assert(0 <= index && index < cell_count(), "oob"); | |
308 data()->release_set_cell_at(index, value); | |
309 } | |
310 intptr_t intptr_at(int index) { | |
311 assert(0 <= index && index < cell_count(), "oob"); | |
312 return data()->cell_at(index); | |
313 } | |
314 void set_uint_at(int index, uint value) { | |
315 set_intptr_at(index, (intptr_t) value); | |
316 } | |
317 void release_set_uint_at(int index, uint value) { | |
318 release_set_intptr_at(index, (intptr_t) value); | |
319 } | |
320 uint uint_at(int index) { | |
321 return (uint)intptr_at(index); | |
322 } | |
323 void set_int_at(int index, int value) { | |
324 set_intptr_at(index, (intptr_t) value); | |
325 } | |
326 void release_set_int_at(int index, int value) { | |
327 release_set_intptr_at(index, (intptr_t) value); | |
328 } | |
329 int int_at(int index) { | |
330 return (int)intptr_at(index); | |
331 } | |
332 int int_at_unchecked(int index) { | |
333 return (int)data()->cell_at(index); | |
334 } | |
335 void set_oop_at(int index, oop value) { | |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12258
diff
changeset
|
336 set_intptr_at(index, cast_from_oop<intptr_t>(value)); |
0 | 337 } |
338 oop oop_at(int index) { | |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12258
diff
changeset
|
339 return cast_to_oop(intptr_at(index)); |
0 | 340 } |
341 | |
342 void set_flag_at(int flag_number) { | |
343 data()->set_flag_at(flag_number); | |
344 } | |
345 bool flag_at(int flag_number) { | |
346 return data()->flag_at(flag_number); | |
347 } | |
348 | |
349 // two convenient imports for use by subclasses: | |
350 static ByteSize cell_offset(int index) { | |
351 return DataLayout::cell_offset(index); | |
352 } | |
353 static int flag_number_to_byte_constant(int flag_number) { | |
354 return DataLayout::flag_number_to_byte_constant(flag_number); | |
355 } | |
356 | |
357 ProfileData(DataLayout* data) { | |
358 _data = data; | |
359 } | |
360 | |
361 public: | |
362 // Constructor for invalid ProfileData. | |
363 ProfileData(); | |
364 | |
365 u2 bci() { | |
366 return data()->bci(); | |
367 } | |
368 | |
369 address dp() { | |
370 return (address)_data; | |
371 } | |
372 | |
373 int trap_state() { | |
374 return data()->trap_state(); | |
375 } | |
376 void set_trap_state(int new_state) { | |
377 data()->set_trap_state(new_state); | |
378 } | |
379 | |
380 // Type checking | |
381 virtual bool is_BitData() { return false; } | |
382 virtual bool is_CounterData() { return false; } | |
383 virtual bool is_JumpData() { return false; } | |
384 virtual bool is_ReceiverTypeData(){ return false; } | |
385 virtual bool is_VirtualCallData() { return false; } | |
386 virtual bool is_RetData() { return false; } | |
387 virtual bool is_BranchData() { return false; } | |
388 virtual bool is_ArrayData() { return false; } | |
389 virtual bool is_MultiBranchData() { return false; } | |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
390 virtual bool is_ArgInfoData() { return false; } |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
391 |
0 | 392 |
393 BitData* as_BitData() { | |
394 assert(is_BitData(), "wrong type"); | |
395 return is_BitData() ? (BitData*) this : NULL; | |
396 } | |
397 CounterData* as_CounterData() { | |
398 assert(is_CounterData(), "wrong type"); | |
399 return is_CounterData() ? (CounterData*) this : NULL; | |
400 } | |
401 JumpData* as_JumpData() { | |
402 assert(is_JumpData(), "wrong type"); | |
403 return is_JumpData() ? (JumpData*) this : NULL; | |
404 } | |
405 ReceiverTypeData* as_ReceiverTypeData() { | |
406 assert(is_ReceiverTypeData(), "wrong type"); | |
407 return is_ReceiverTypeData() ? (ReceiverTypeData*)this : NULL; | |
408 } | |
409 VirtualCallData* as_VirtualCallData() { | |
410 assert(is_VirtualCallData(), "wrong type"); | |
411 return is_VirtualCallData() ? (VirtualCallData*)this : NULL; | |
412 } | |
413 RetData* as_RetData() { | |
414 assert(is_RetData(), "wrong type"); | |
415 return is_RetData() ? (RetData*) this : NULL; | |
416 } | |
417 BranchData* as_BranchData() { | |
418 assert(is_BranchData(), "wrong type"); | |
419 return is_BranchData() ? (BranchData*) this : NULL; | |
420 } | |
421 ArrayData* as_ArrayData() { | |
422 assert(is_ArrayData(), "wrong type"); | |
423 return is_ArrayData() ? (ArrayData*) this : NULL; | |
424 } | |
425 MultiBranchData* as_MultiBranchData() { | |
426 assert(is_MultiBranchData(), "wrong type"); | |
427 return is_MultiBranchData() ? (MultiBranchData*)this : NULL; | |
428 } | |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
429 ArgInfoData* as_ArgInfoData() { |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
430 assert(is_ArgInfoData(), "wrong type"); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
431 return is_ArgInfoData() ? (ArgInfoData*)this : NULL; |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
432 } |
0 | 433 |
434 | |
435 // Subclass specific initialization | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
436 virtual void post_initialize(BytecodeStream* stream, MethodData* mdo) {} |
0 | 437 |
438 // GC support | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
439 virtual void clean_weak_klass_links(BoolObjectClosure* is_alive_closure) {} |
0 | 440 |
441 // CI translation: ProfileData can represent both MethodDataOop data | |
442 // as well as CIMethodData data. This function is provided for translating | |
443 // an oop in a ProfileData to the ci equivalent. Generally speaking, | |
444 // most ProfileData don't require any translation, so we provide the null | |
445 // translation here, and the required translators are in the ci subclasses. | |
446 virtual void translate_from(ProfileData* data) {} | |
447 | |
448 virtual void print_data_on(outputStream* st) { | |
449 ShouldNotReachHere(); | |
450 } | |
451 | |
452 #ifndef PRODUCT | |
453 void print_shared(outputStream* st, const char* name); | |
454 void tab(outputStream* st); | |
455 #endif | |
456 }; | |
457 | |
458 // BitData | |
459 // | |
460 // A BitData holds a flag or two in its header. | |
461 class BitData : public ProfileData { | |
462 protected: | |
463 enum { | |
464 // null_seen: | |
465 // saw a null operand (cast/aastore/instanceof) | |
8616
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
466 null_seen_flag = DataLayout::first_flag + 0 |
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
467 #ifdef GRAAL |
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
468 // bytecode threw any exception |
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
469 , exception_seen_flag = null_seen_flag + 1 |
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
470 #endif |
0 | 471 }; |
472 enum { bit_cell_count = 0 }; // no additional data fields needed. | |
473 public: | |
474 BitData(DataLayout* layout) : ProfileData(layout) { | |
475 } | |
476 | |
477 virtual bool is_BitData() { return true; } | |
478 | |
479 static int static_cell_count() { | |
480 return bit_cell_count; | |
481 } | |
482 | |
483 virtual int cell_count() { | |
484 return static_cell_count(); | |
485 } | |
486 | |
487 // Accessor | |
488 | |
489 // The null_seen flag bit is specially known to the interpreter. | |
490 // Consulting it allows the compiler to avoid setting up null_check traps. | |
491 bool null_seen() { return flag_at(null_seen_flag); } | |
492 void set_null_seen() { set_flag_at(null_seen_flag); } | |
8616
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
493 #ifdef GRAAL |
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
494 // true if an exception was thrown at the specific BCI |
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
495 bool exception_seen() { return flag_at(exception_seen_flag); } |
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
496 void set_exception_seen() { set_flag_at(exception_seen_flag); } |
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8611
diff
changeset
|
497 #endif |
0 | 498 |
499 // Code generation support | |
500 static int null_seen_byte_constant() { | |
501 return flag_number_to_byte_constant(null_seen_flag); | |
502 } | |
503 | |
504 static ByteSize bit_data_size() { | |
505 return cell_offset(bit_cell_count); | |
506 } | |
507 | |
508 #ifndef PRODUCT | |
509 void print_data_on(outputStream* st); | |
510 #endif | |
511 }; | |
512 | |
513 // CounterData | |
514 // | |
515 // A CounterData corresponds to a simple counter. | |
516 class CounterData : public BitData { | |
517 protected: | |
518 enum { | |
519 count_off, | |
520 counter_cell_count | |
521 }; | |
522 public: | |
523 CounterData(DataLayout* layout) : BitData(layout) {} | |
524 | |
525 virtual bool is_CounterData() { return true; } | |
526 | |
527 static int static_cell_count() { | |
528 return counter_cell_count; | |
529 } | |
530 | |
531 virtual int cell_count() { | |
532 return static_cell_count(); | |
533 } | |
534 | |
535 // Direct accessor | |
536 uint count() { | |
537 return uint_at(count_off); | |
538 } | |
539 | |
540 // Code generation support | |
541 static ByteSize count_offset() { | |
542 return cell_offset(count_off); | |
543 } | |
544 static ByteSize counter_data_size() { | |
545 return cell_offset(counter_cell_count); | |
546 } | |
547 | |
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
548 void set_count(uint count) { |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
549 set_uint_at(count_off, count); |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
550 } |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
551 |
0 | 552 #ifndef PRODUCT |
553 void print_data_on(outputStream* st); | |
554 #endif | |
555 }; | |
556 | |
557 // JumpData | |
558 // | |
559 // A JumpData is used to access profiling information for a direct | |
560 // branch. It is a counter, used for counting the number of branches, | |
561 // plus a data displacement, used for realigning the data pointer to | |
562 // the corresponding target bci. | |
563 class JumpData : public ProfileData { | |
564 protected: | |
565 enum { | |
566 taken_off_set, | |
567 displacement_off_set, | |
568 jump_cell_count | |
569 }; | |
570 | |
571 void set_displacement(int displacement) { | |
572 set_int_at(displacement_off_set, displacement); | |
573 } | |
574 | |
575 public: | |
576 JumpData(DataLayout* layout) : ProfileData(layout) { | |
577 assert(layout->tag() == DataLayout::jump_data_tag || | |
578 layout->tag() == DataLayout::branch_data_tag, "wrong type"); | |
579 } | |
580 | |
581 virtual bool is_JumpData() { return true; } | |
582 | |
583 static int static_cell_count() { | |
584 return jump_cell_count; | |
585 } | |
586 | |
587 virtual int cell_count() { | |
588 return static_cell_count(); | |
589 } | |
590 | |
591 // Direct accessor | |
592 uint taken() { | |
593 return uint_at(taken_off_set); | |
594 } | |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
595 |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
596 void set_taken(uint cnt) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
597 set_uint_at(taken_off_set, cnt); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
598 } |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
599 |
0 | 600 // Saturating counter |
601 uint inc_taken() { | |
602 uint cnt = taken() + 1; | |
603 // Did we wrap? Will compiler screw us?? | |
604 if (cnt == 0) cnt--; | |
605 set_uint_at(taken_off_set, cnt); | |
606 return cnt; | |
607 } | |
608 | |
609 int displacement() { | |
610 return int_at(displacement_off_set); | |
611 } | |
612 | |
613 // Code generation support | |
614 static ByteSize taken_offset() { | |
615 return cell_offset(taken_off_set); | |
616 } | |
617 | |
618 static ByteSize displacement_offset() { | |
619 return cell_offset(displacement_off_set); | |
620 } | |
621 | |
622 // Specific initialization. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
623 void post_initialize(BytecodeStream* stream, MethodData* mdo); |
0 | 624 |
625 #ifndef PRODUCT | |
626 void print_data_on(outputStream* st); | |
627 #endif | |
628 }; | |
629 | |
630 // ReceiverTypeData | |
631 // | |
632 // A ReceiverTypeData is used to access profiling information about a | |
633 // dynamic type check. It consists of a counter which counts the total times | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
634 // that the check is reached, and a series of (Klass*, count) pairs |
0 | 635 // which are used to store a type profile for the receiver of the check. |
636 class ReceiverTypeData : public CounterData { | |
637 protected: | |
638 enum { | |
7154
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
639 #ifdef GRAAL |
9762
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
640 // Description of the different counters |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
641 // ReceiverTypeData for instanceof/checkcast/aastore: |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
642 // C1/C2: count is incremented on type overflow and decremented for failed type checks |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
643 // Graal: count decremented for failed type checks and nonprofiled_count is incremented on type overflow |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
644 // TODO (chaeubl): in fact, Graal should also increment the count for failed type checks to mimic the C1/C2 behavior |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
645 // VirtualCallData for invokevirtual/invokeinterface: |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
646 // C1/C2: count is incremented on type overflow |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
647 // Graal: count is incremented on type overflow, nonprofiled_count is increment on method overflow |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
648 |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
649 // Graal is interested in knowing the percentage of type checks involving a type not explicitly in the profile |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
650 nonprofiled_count_off_set = counter_cell_count, |
7154
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
651 receiver0_offset, |
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
652 #else |
0 | 653 receiver0_offset = counter_cell_count, |
7154
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
654 #endif |
0 | 655 count0_offset, |
656 receiver_type_row_cell_count = (count0_offset + 1) - receiver0_offset | |
657 }; | |
658 | |
659 public: | |
660 ReceiverTypeData(DataLayout* layout) : CounterData(layout) { | |
661 assert(layout->tag() == DataLayout::receiver_type_data_tag || | |
662 layout->tag() == DataLayout::virtual_call_data_tag, "wrong type"); | |
663 } | |
664 | |
665 virtual bool is_ReceiverTypeData() { return true; } | |
666 | |
667 static int static_cell_count() { | |
7154
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
668 return counter_cell_count + (uint) TypeProfileWidth * receiver_type_row_cell_count GRAAL_ONLY(+ 1); |
0 | 669 } |
670 | |
671 virtual int cell_count() { | |
672 return static_cell_count(); | |
673 } | |
674 | |
675 // Direct accessors | |
676 static uint row_limit() { | |
677 return TypeProfileWidth; | |
678 } | |
679 static int receiver_cell_index(uint row) { | |
680 return receiver0_offset + row * receiver_type_row_cell_count; | |
681 } | |
682 static int receiver_count_cell_index(uint row) { | |
683 return count0_offset + row * receiver_type_row_cell_count; | |
684 } | |
685 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
686 Klass* receiver(uint row) { |
0 | 687 assert(row < row_limit(), "oob"); |
688 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
689 Klass* recv = (Klass*)intptr_at(receiver_cell_index(row)); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
690 assert(recv == NULL || recv->is_klass(), "wrong type"); |
0 | 691 return recv; |
692 } | |
693 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
694 void set_receiver(uint row, Klass* k) { |
941 | 695 assert((uint)row < row_limit(), "oob"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
696 set_intptr_at(receiver_cell_index(row), (uintptr_t)k); |
941 | 697 } |
698 | |
0 | 699 uint receiver_count(uint row) { |
700 assert(row < row_limit(), "oob"); | |
701 return uint_at(receiver_count_cell_index(row)); | |
702 } | |
703 | |
941 | 704 void set_receiver_count(uint row, uint count) { |
705 assert(row < row_limit(), "oob"); | |
706 set_uint_at(receiver_count_cell_index(row), count); | |
707 } | |
708 | |
709 void clear_row(uint row) { | |
710 assert(row < row_limit(), "oob"); | |
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
711 // Clear total count - indicator of polymorphic call site. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
712 // The site may look like as monomorphic after that but |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
713 // it allow to have more accurate profiling information because |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
714 // there was execution phase change since klasses were unloaded. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
715 // If the site is still polymorphic then MDO will be updated |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
716 // to reflect it. But it could be the case that the site becomes |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
717 // only bimorphic. Then keeping total count not 0 will be wrong. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
718 // Even if we use monomorphic (when it is not) for compilation |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
719 // we will only have trap, deoptimization and recompile again |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
720 // with updated MDO after executing method in Interpreter. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
721 // An additional receiver will be recorded in the cleaned row |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
722 // during next call execution. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
723 // |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
724 // Note: our profiling logic works with empty rows in any slot. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
725 // We do sorting a profiling info (ciCallProfile) for compilation. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
726 // |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
727 set_count(0); |
941 | 728 set_receiver(row, NULL); |
729 set_receiver_count(row, 0); | |
9762
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
730 #ifdef GRAAL |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
731 if (!this->is_VirtualCallData()) { |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
732 // if this is a ReceiverTypeData for Graal, the nonprofiled_count |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
733 // must also be reset (see "Description of the different counters" above) |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
734 set_nonprofiled_count(0); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
735 } |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
736 #endif |
941 | 737 } |
738 | |
0 | 739 // Code generation support |
740 static ByteSize receiver_offset(uint row) { | |
741 return cell_offset(receiver_cell_index(row)); | |
742 } | |
743 static ByteSize receiver_count_offset(uint row) { | |
744 return cell_offset(receiver_count_cell_index(row)); | |
745 } | |
7154
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
746 #ifdef GRAAL |
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
747 static ByteSize nonprofiled_receiver_count_offset() { |
9762
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
748 return cell_offset(nonprofiled_count_off_set); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
749 } |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
750 void set_nonprofiled_count(uint count) { |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
751 set_uint_at(nonprofiled_count_off_set, count); |
7154
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
752 } |
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
753 #endif |
0 | 754 static ByteSize receiver_type_data_size() { |
755 return cell_offset(static_cell_count()); | |
756 } | |
757 | |
758 // GC support | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
759 virtual void clean_weak_klass_links(BoolObjectClosure* is_alive_closure); |
0 | 760 |
761 #ifndef PRODUCT | |
762 void print_receiver_data_on(outputStream* st); | |
763 void print_data_on(outputStream* st); | |
764 #endif | |
765 }; | |
766 | |
767 // VirtualCallData | |
768 // | |
769 // A VirtualCallData is used to access profiling information about a | |
770 // virtual call. For now, it has nothing more than a ReceiverTypeData. | |
771 class VirtualCallData : public ReceiverTypeData { | |
772 public: | |
773 VirtualCallData(DataLayout* layout) : ReceiverTypeData(layout) { | |
774 assert(layout->tag() == DataLayout::virtual_call_data_tag, "wrong type"); | |
775 } | |
776 | |
777 virtual bool is_VirtualCallData() { return true; } | |
778 | |
779 static int static_cell_count() { | |
780 // At this point we could add more profile state, e.g., for arguments. | |
781 // But for now it's the same size as the base record type. | |
9760
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
782 return ReceiverTypeData::static_cell_count() GRAAL_ONLY(+ (uint) MethodProfileWidth * receiver_type_row_cell_count); |
0 | 783 } |
784 | |
785 virtual int cell_count() { | |
786 return static_cell_count(); | |
787 } | |
788 | |
789 // Direct accessors | |
790 static ByteSize virtual_call_data_size() { | |
791 return cell_offset(static_cell_count()); | |
792 } | |
793 | |
9760
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
794 #ifdef GRAAL |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
795 static ByteSize method_offset(uint row) { |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
796 return cell_offset(method_cell_index(row)); |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
797 } |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
798 static ByteSize method_count_offset(uint row) { |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
799 return cell_offset(method_count_cell_index(row)); |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
800 } |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
801 static int method_cell_index(uint row) { |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
802 return receiver0_offset + (row + TypeProfileWidth) * receiver_type_row_cell_count; |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
803 } |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
804 static int method_count_cell_index(uint row) { |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
805 return count0_offset + (row + TypeProfileWidth) * receiver_type_row_cell_count; |
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
806 } |
9762
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
807 static uint method_row_limit() { |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
808 return MethodProfileWidth; |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
809 } |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
810 |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
811 Method* method(uint row) { |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
812 assert(row < method_row_limit(), "oob"); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
813 |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
814 Method* method = (Method*)intptr_at(method_cell_index(row)); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
815 assert(method == NULL || method->is_method(), "must be"); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
816 return method; |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
817 } |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
818 |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
819 void set_method(uint row, Method* m) { |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
820 assert((uint)row < method_row_limit(), "oob"); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
821 set_intptr_at(method_cell_index(row), (uintptr_t)m); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
822 } |
9760
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9088
diff
changeset
|
823 |
9762
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
824 void set_method_count(uint row, uint count) { |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
825 assert(row < method_row_limit(), "oob"); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
826 set_uint_at(method_count_cell_index(row), count); |
0 | 827 } |
828 | |
9762
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
829 void clear_method_row(uint row) { |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
830 assert(row < method_row_limit(), "oob"); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
831 // Clear total count - indicator of polymorphic call site (see comment for clear_row() in ReceiverTypeData). |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
832 set_nonprofiled_count(0); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
833 set_method(row, NULL); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
834 set_method_count(row, 0); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
835 } |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
836 |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
837 // GC support |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
838 virtual void clean_weak_klass_links(BoolObjectClosure* is_alive_closure); |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
839 #endif |
57e5211846f9
Added class unloading support to the method profiling infrastructure.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9760
diff
changeset
|
840 |
0 | 841 #ifndef PRODUCT |
842 void print_data_on(outputStream* st); | |
843 #endif | |
844 }; | |
845 | |
846 // RetData | |
847 // | |
848 // A RetData is used to access profiling information for a ret bytecode. | |
849 // It is composed of a count of the number of times that the ret has | |
850 // been executed, followed by a series of triples of the form | |
851 // (bci, count, di) which count the number of times that some bci was the | |
852 // target of the ret and cache a corresponding data displacement. | |
853 class RetData : public CounterData { | |
854 protected: | |
855 enum { | |
856 bci0_offset = counter_cell_count, | |
857 count0_offset, | |
858 displacement0_offset, | |
859 ret_row_cell_count = (displacement0_offset + 1) - bci0_offset | |
860 }; | |
861 | |
862 void set_bci(uint row, int bci) { | |
863 assert((uint)row < row_limit(), "oob"); | |
864 set_int_at(bci0_offset + row * ret_row_cell_count, bci); | |
865 } | |
866 void release_set_bci(uint row, int bci) { | |
867 assert((uint)row < row_limit(), "oob"); | |
868 // 'release' when setting the bci acts as a valid flag for other | |
869 // threads wrt bci_count and bci_displacement. | |
870 release_set_int_at(bci0_offset + row * ret_row_cell_count, bci); | |
871 } | |
872 void set_bci_count(uint row, uint count) { | |
873 assert((uint)row < row_limit(), "oob"); | |
874 set_uint_at(count0_offset + row * ret_row_cell_count, count); | |
875 } | |
876 void set_bci_displacement(uint row, int disp) { | |
877 set_int_at(displacement0_offset + row * ret_row_cell_count, disp); | |
878 } | |
879 | |
880 public: | |
881 RetData(DataLayout* layout) : CounterData(layout) { | |
882 assert(layout->tag() == DataLayout::ret_data_tag, "wrong type"); | |
883 } | |
884 | |
885 virtual bool is_RetData() { return true; } | |
886 | |
887 enum { | |
888 no_bci = -1 // value of bci when bci1/2 are not in use. | |
889 }; | |
890 | |
891 static int static_cell_count() { | |
892 return counter_cell_count + (uint) BciProfileWidth * ret_row_cell_count; | |
893 } | |
894 | |
895 virtual int cell_count() { | |
896 return static_cell_count(); | |
897 } | |
898 | |
899 static uint row_limit() { | |
900 return BciProfileWidth; | |
901 } | |
902 static int bci_cell_index(uint row) { | |
903 return bci0_offset + row * ret_row_cell_count; | |
904 } | |
905 static int bci_count_cell_index(uint row) { | |
906 return count0_offset + row * ret_row_cell_count; | |
907 } | |
908 static int bci_displacement_cell_index(uint row) { | |
909 return displacement0_offset + row * ret_row_cell_count; | |
910 } | |
911 | |
912 // Direct accessors | |
913 int bci(uint row) { | |
914 return int_at(bci_cell_index(row)); | |
915 } | |
916 uint bci_count(uint row) { | |
917 return uint_at(bci_count_cell_index(row)); | |
918 } | |
919 int bci_displacement(uint row) { | |
920 return int_at(bci_displacement_cell_index(row)); | |
921 } | |
922 | |
923 // Interpreter Runtime support | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
924 address fixup_ret(int return_bci, MethodData* mdo); |
0 | 925 |
926 // Code generation support | |
927 static ByteSize bci_offset(uint row) { | |
928 return cell_offset(bci_cell_index(row)); | |
929 } | |
930 static ByteSize bci_count_offset(uint row) { | |
931 return cell_offset(bci_count_cell_index(row)); | |
932 } | |
933 static ByteSize bci_displacement_offset(uint row) { | |
934 return cell_offset(bci_displacement_cell_index(row)); | |
935 } | |
936 | |
937 // Specific initialization. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
938 void post_initialize(BytecodeStream* stream, MethodData* mdo); |
0 | 939 |
940 #ifndef PRODUCT | |
941 void print_data_on(outputStream* st); | |
942 #endif | |
943 }; | |
944 | |
945 // BranchData | |
946 // | |
947 // A BranchData is used to access profiling data for a two-way branch. | |
948 // It consists of taken and not_taken counts as well as a data displacement | |
949 // for the taken case. | |
950 class BranchData : public JumpData { | |
951 protected: | |
952 enum { | |
953 not_taken_off_set = jump_cell_count, | |
954 branch_cell_count | |
955 }; | |
956 | |
957 void set_displacement(int displacement) { | |
958 set_int_at(displacement_off_set, displacement); | |
959 } | |
960 | |
961 public: | |
962 BranchData(DataLayout* layout) : JumpData(layout) { | |
963 assert(layout->tag() == DataLayout::branch_data_tag, "wrong type"); | |
964 } | |
965 | |
966 virtual bool is_BranchData() { return true; } | |
967 | |
968 static int static_cell_count() { | |
969 return branch_cell_count; | |
970 } | |
971 | |
972 virtual int cell_count() { | |
973 return static_cell_count(); | |
974 } | |
975 | |
976 // Direct accessor | |
977 uint not_taken() { | |
978 return uint_at(not_taken_off_set); | |
979 } | |
980 | |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
981 void set_not_taken(uint cnt) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
982 set_uint_at(not_taken_off_set, cnt); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
983 } |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
984 |
0 | 985 uint inc_not_taken() { |
986 uint cnt = not_taken() + 1; | |
987 // Did we wrap? Will compiler screw us?? | |
988 if (cnt == 0) cnt--; | |
989 set_uint_at(not_taken_off_set, cnt); | |
990 return cnt; | |
991 } | |
992 | |
993 // Code generation support | |
994 static ByteSize not_taken_offset() { | |
995 return cell_offset(not_taken_off_set); | |
996 } | |
997 static ByteSize branch_data_size() { | |
998 return cell_offset(branch_cell_count); | |
999 } | |
1000 | |
1001 // Specific initialization. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1002 void post_initialize(BytecodeStream* stream, MethodData* mdo); |
0 | 1003 |
1004 #ifndef PRODUCT | |
1005 void print_data_on(outputStream* st); | |
1006 #endif | |
1007 }; | |
1008 | |
1009 // ArrayData | |
1010 // | |
1011 // A ArrayData is a base class for accessing profiling data which does | |
1012 // not have a statically known size. It consists of an array length | |
1013 // and an array start. | |
1014 class ArrayData : public ProfileData { | |
1015 protected: | |
1016 friend class DataLayout; | |
1017 | |
1018 enum { | |
1019 array_len_off_set, | |
1020 array_start_off_set | |
1021 }; | |
1022 | |
1023 uint array_uint_at(int index) { | |
1024 int aindex = index + array_start_off_set; | |
1025 return uint_at(aindex); | |
1026 } | |
1027 int array_int_at(int index) { | |
1028 int aindex = index + array_start_off_set; | |
1029 return int_at(aindex); | |
1030 } | |
1031 oop array_oop_at(int index) { | |
1032 int aindex = index + array_start_off_set; | |
1033 return oop_at(aindex); | |
1034 } | |
1035 void array_set_int_at(int index, int value) { | |
1036 int aindex = index + array_start_off_set; | |
1037 set_int_at(aindex, value); | |
1038 } | |
1039 | |
1040 // Code generation support for subclasses. | |
1041 static ByteSize array_element_offset(int index) { | |
1042 return cell_offset(array_start_off_set + index); | |
1043 } | |
1044 | |
1045 public: | |
1046 ArrayData(DataLayout* layout) : ProfileData(layout) {} | |
1047 | |
1048 virtual bool is_ArrayData() { return true; } | |
1049 | |
1050 static int static_cell_count() { | |
1051 return -1; | |
1052 } | |
1053 | |
1054 int array_len() { | |
1055 return int_at_unchecked(array_len_off_set); | |
1056 } | |
1057 | |
1058 virtual int cell_count() { | |
1059 return array_len() + 1; | |
1060 } | |
1061 | |
1062 // Code generation support | |
1063 static ByteSize array_len_offset() { | |
1064 return cell_offset(array_len_off_set); | |
1065 } | |
1066 static ByteSize array_start_offset() { | |
1067 return cell_offset(array_start_off_set); | |
1068 } | |
1069 }; | |
1070 | |
1071 // MultiBranchData | |
1072 // | |
1073 // A MultiBranchData is used to access profiling information for | |
1074 // a multi-way branch (*switch bytecodes). It consists of a series | |
1075 // of (count, displacement) pairs, which count the number of times each | |
1076 // case was taken and specify the data displacment for each branch target. | |
1077 class MultiBranchData : public ArrayData { | |
1078 protected: | |
1079 enum { | |
1080 default_count_off_set, | |
1081 default_disaplacement_off_set, | |
1082 case_array_start | |
1083 }; | |
1084 enum { | |
1085 relative_count_off_set, | |
1086 relative_displacement_off_set, | |
1087 per_case_cell_count | |
1088 }; | |
1089 | |
1090 void set_default_displacement(int displacement) { | |
1091 array_set_int_at(default_disaplacement_off_set, displacement); | |
1092 } | |
1093 void set_displacement_at(int index, int displacement) { | |
1094 array_set_int_at(case_array_start + | |
1095 index * per_case_cell_count + | |
1096 relative_displacement_off_set, | |
1097 displacement); | |
1098 } | |
1099 | |
1100 public: | |
1101 MultiBranchData(DataLayout* layout) : ArrayData(layout) { | |
1102 assert(layout->tag() == DataLayout::multi_branch_data_tag, "wrong type"); | |
1103 } | |
1104 | |
1105 virtual bool is_MultiBranchData() { return true; } | |
1106 | |
1107 static int compute_cell_count(BytecodeStream* stream); | |
1108 | |
1109 int number_of_cases() { | |
1110 int alen = array_len() - 2; // get rid of default case here. | |
1111 assert(alen % per_case_cell_count == 0, "must be even"); | |
1112 return (alen / per_case_cell_count); | |
1113 } | |
1114 | |
1115 uint default_count() { | |
1116 return array_uint_at(default_count_off_set); | |
1117 } | |
1118 int default_displacement() { | |
1119 return array_int_at(default_disaplacement_off_set); | |
1120 } | |
1121 | |
1122 uint count_at(int index) { | |
1123 return array_uint_at(case_array_start + | |
1124 index * per_case_cell_count + | |
1125 relative_count_off_set); | |
1126 } | |
1127 int displacement_at(int index) { | |
1128 return array_int_at(case_array_start + | |
1129 index * per_case_cell_count + | |
1130 relative_displacement_off_set); | |
1131 } | |
1132 | |
1133 // Code generation support | |
1134 static ByteSize default_count_offset() { | |
1135 return array_element_offset(default_count_off_set); | |
1136 } | |
1137 static ByteSize default_displacement_offset() { | |
1138 return array_element_offset(default_disaplacement_off_set); | |
1139 } | |
1140 static ByteSize case_count_offset(int index) { | |
1141 return case_array_offset() + | |
1142 (per_case_size() * index) + | |
1143 relative_count_offset(); | |
1144 } | |
1145 static ByteSize case_array_offset() { | |
1146 return array_element_offset(case_array_start); | |
1147 } | |
1148 static ByteSize per_case_size() { | |
1149 return in_ByteSize(per_case_cell_count) * cell_size; | |
1150 } | |
1151 static ByteSize relative_count_offset() { | |
1152 return in_ByteSize(relative_count_off_set) * cell_size; | |
1153 } | |
1154 static ByteSize relative_displacement_offset() { | |
1155 return in_ByteSize(relative_displacement_off_set) * cell_size; | |
1156 } | |
1157 | |
1158 // Specific initialization. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1159 void post_initialize(BytecodeStream* stream, MethodData* mdo); |
0 | 1160 |
1161 #ifndef PRODUCT | |
1162 void print_data_on(outputStream* st); | |
1163 #endif | |
1164 }; | |
1165 | |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1166 class ArgInfoData : public ArrayData { |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1167 |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1168 public: |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1169 ArgInfoData(DataLayout* layout) : ArrayData(layout) { |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1170 assert(layout->tag() == DataLayout::arg_info_data_tag, "wrong type"); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1171 } |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1172 |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1173 virtual bool is_ArgInfoData() { return true; } |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1174 |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1175 |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1176 int number_of_args() { |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1177 return array_len(); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1178 } |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1179 |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1180 uint arg_modified(int arg) { |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1181 return array_uint_at(arg); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1182 } |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1183 |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1184 void set_arg_modified(int arg, uint val) { |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1185 array_set_int_at(arg, val); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1186 } |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1187 |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1188 #ifndef PRODUCT |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1189 void print_data_on(outputStream* st); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1190 #endif |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1191 }; |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1192 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1193 // MethodData* |
0 | 1194 // |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1195 // A MethodData* holds information which has been collected about |
0 | 1196 // a method. Its layout looks like this: |
1197 // | |
1198 // ----------------------------- | |
1199 // | header | | |
1200 // | klass | | |
1201 // ----------------------------- | |
1202 // | method | | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1203 // | size of the MethodData* | |
0 | 1204 // ----------------------------- |
1205 // | Data entries... | | |
1206 // | (variable size) | | |
1207 // | | | |
1208 // . . | |
1209 // . . | |
1210 // . . | |
1211 // | | | |
1212 // ----------------------------- | |
1213 // | |
1214 // The data entry area is a heterogeneous array of DataLayouts. Each | |
1215 // DataLayout in the array corresponds to a specific bytecode in the | |
1216 // method. The entries in the array are sorted by the corresponding | |
1217 // bytecode. Access to the data is via resource-allocated ProfileData, | |
1218 // which point to the underlying blocks of DataLayout structures. | |
1219 // | |
1220 // During interpretation, if profiling in enabled, the interpreter | |
1221 // maintains a method data pointer (mdp), which points at the entry | |
1222 // in the array corresponding to the current bci. In the course of | |
1223 // intepretation, when a bytecode is encountered that has profile data | |
1224 // associated with it, the entry pointed to by mdp is updated, then the | |
1225 // mdp is adjusted to point to the next appropriate DataLayout. If mdp | |
1226 // is NULL to begin with, the interpreter assumes that the current method | |
1227 // is not (yet) being profiled. | |
1228 // | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1229 // In MethodData* parlance, "dp" is a "data pointer", the actual address |
0 | 1230 // of a DataLayout element. A "di" is a "data index", the offset in bytes |
1231 // from the base of the data entry array. A "displacement" is the byte offset | |
1232 // in certain ProfileData objects that indicate the amount the mdp must be | |
1233 // adjusted in the event of a change in control flow. | |
1234 // | |
1235 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1236 class MethodData : public Metadata { |
0 | 1237 friend class VMStructs; |
1238 private: | |
1239 friend class ProfileData; | |
1240 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1241 // Back pointer to the Method* |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1242 Method* _method; |
0 | 1243 |
1244 // Size of this oop in bytes | |
1245 int _size; | |
1246 | |
1247 // Cached hint for bci_to_dp and bci_to_data | |
1248 int _hint_di; | |
1249 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1250 MethodData(methodHandle method, int size, TRAPS); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1251 public: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1252 static MethodData* allocate(ClassLoaderData* loader_data, methodHandle method, TRAPS); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1253 MethodData() {}; // For ciMethodData |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1254 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1255 bool is_methodData() const volatile { return true; } |
8611
6c4db417385a
added API to reset the profiling information for a method
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8124
diff
changeset
|
1256 void initialize(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1257 |
0 | 1258 // Whole-method sticky bits and flags |
1259 enum { | |
3345 | 1260 _trap_hist_limit = 17, // decoupled from Deoptimization::Reason_LIMIT |
0 | 1261 _trap_hist_mask = max_jubyte, |
1262 _extra_data_count = 4 // extra DataLayout headers, for trap history | |
1263 }; // Public flag values | |
1264 private: | |
1265 uint _nof_decompiles; // count of all nmethod removals | |
1266 uint _nof_overflow_recompiles; // recompile count, excluding recomp. bits | |
1267 uint _nof_overflow_traps; // trap count, excluding _trap_hist | |
1268 union { | |
1269 intptr_t _align; | |
1270 u1 _array[_trap_hist_limit]; | |
1271 } _trap_hist; | |
1272 | |
1273 // Support for interprocedural escape analysis, from Thomas Kotzmann. | |
1274 intx _eflags; // flags on escape information | |
1275 intx _arg_local; // bit set of non-escaping arguments | |
1276 intx _arg_stack; // bit set of stack-allocatable arguments | |
1277 intx _arg_returned; // bit set of returned arguments | |
1278 | |
1783 | 1279 int _creation_mileage; // method mileage at MDO creation |
1280 | |
1281 // How many invocations has this MDO seen? | |
1282 // These counters are used to determine the exact age of MDO. | |
1283 // We need those because in tiered a method can be concurrently | |
1284 // executed at different levels. | |
1285 InvocationCounter _invocation_counter; | |
1286 // Same for backedges. | |
1287 InvocationCounter _backedge_counter; | |
2252 | 1288 // Counter values at the time profiling started. |
1289 int _invocation_counter_start; | |
1290 int _backedge_counter_start; | |
1783 | 1291 // Number of loops and blocks is computed when compiling the first |
1292 // time with C1. It is used to determine if method is trivial. | |
1293 short _num_loops; | |
1294 short _num_blocks; | |
1295 // Highest compile level this method has ever seen. | |
1296 u1 _highest_comp_level; | |
1297 // Same for OSR level | |
1298 u1 _highest_osr_comp_level; | |
1299 // Does this method contain anything worth profiling? | |
1300 bool _would_profile; | |
0 | 1301 |
1302 // Size of _data array in bytes. (Excludes header and extra_data fields.) | |
1303 int _data_size; | |
1304 | |
1305 // Beginning of the data entries | |
1306 intptr_t _data[1]; | |
1307 | |
1308 // Helper for size computation | |
1309 static int compute_data_size(BytecodeStream* stream); | |
1310 static int bytecode_cell_count(Bytecodes::Code code); | |
1311 enum { no_profile_data = -1, variable_cell_count = -2 }; | |
1312 | |
1313 // Helper for initialization | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1314 DataLayout* data_layout_at(int data_index) const { |
0 | 1315 assert(data_index % sizeof(intptr_t) == 0, "unaligned"); |
1316 return (DataLayout*) (((address)_data) + data_index); | |
1317 } | |
1318 | |
1319 // Initialize an individual data segment. Returns the size of | |
1320 // the segment in bytes. | |
1321 int initialize_data(BytecodeStream* stream, int data_index); | |
1322 | |
1323 // Helper for data_at | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1324 DataLayout* limit_data_position() const { |
0 | 1325 return (DataLayout*)((address)data_base() + _data_size); |
1326 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1327 bool out_of_bounds(int data_index) const { |
0 | 1328 return data_index >= data_size(); |
1329 } | |
1330 | |
1331 // Give each of the data entries a chance to perform specific | |
1332 // data initialization. | |
1333 void post_initialize(BytecodeStream* stream); | |
1334 | |
1335 // hint accessors | |
1336 int hint_di() const { return _hint_di; } | |
1337 void set_hint_di(int di) { | |
1338 assert(!out_of_bounds(di), "hint_di out of bounds"); | |
1339 _hint_di = di; | |
1340 } | |
1341 ProfileData* data_before(int bci) { | |
1342 // avoid SEGV on this edge case | |
1343 if (data_size() == 0) | |
1344 return NULL; | |
1345 int hint = hint_di(); | |
1346 if (data_layout_at(hint)->bci() <= bci) | |
1347 return data_at(hint); | |
1348 return first_data(); | |
1349 } | |
1350 | |
1351 // What is the index of the first data entry? | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1352 int first_di() const { return 0; } |
0 | 1353 |
1354 // Find or create an extra ProfileData: | |
1355 ProfileData* bci_to_extra_data(int bci, bool create_if_missing); | |
1356 | |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1357 // return the argument info cell |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1358 ArgInfoData *arg_info(); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1359 |
0 | 1360 public: |
1361 static int header_size() { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1362 return sizeof(MethodData)/wordSize; |
0 | 1363 } |
1364 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1365 // Compute the size of a MethodData* before it is created. |
0 | 1366 static int compute_allocation_size_in_bytes(methodHandle method); |
1367 static int compute_allocation_size_in_words(methodHandle method); | |
1368 static int compute_extra_data_count(int data_size, int empty_bc_count); | |
1369 | |
1370 // Determine if a given bytecode can have profile information. | |
1371 static bool bytecode_has_profile(Bytecodes::Code code) { | |
1372 return bytecode_cell_count(code) != no_profile_data; | |
1373 } | |
1374 | |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8000
diff
changeset
|
1375 // reset into original state |
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8000
diff
changeset
|
1376 void init(); |
0 | 1377 |
1378 // My size | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1379 int size_in_bytes() const { return _size; } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1380 int size() const { return align_object_size(align_size_up(_size, BytesPerWord)/BytesPerWord); } |
7956 | 1381 #if INCLUDE_SERVICES |
1382 void collect_statistics(KlassSizeStats *sz) const; | |
1383 #endif | |
0 | 1384 |
1385 int creation_mileage() const { return _creation_mileage; } | |
1386 void set_creation_mileage(int x) { _creation_mileage = x; } | |
1783 | 1387 |
1388 int invocation_count() { | |
1389 if (invocation_counter()->carry()) { | |
1390 return InvocationCounter::count_limit; | |
1391 } | |
1392 return invocation_counter()->count(); | |
1393 } | |
1394 int backedge_count() { | |
1395 if (backedge_counter()->carry()) { | |
1396 return InvocationCounter::count_limit; | |
1397 } | |
1398 return backedge_counter()->count(); | |
1399 } | |
1400 | |
2252 | 1401 int invocation_count_start() { |
1402 if (invocation_counter()->carry()) { | |
1403 return 0; | |
1404 } | |
1405 return _invocation_counter_start; | |
1406 } | |
1407 | |
1408 int backedge_count_start() { | |
1409 if (backedge_counter()->carry()) { | |
1410 return 0; | |
1411 } | |
1412 return _backedge_counter_start; | |
1413 } | |
1414 | |
1415 int invocation_count_delta() { return invocation_count() - invocation_count_start(); } | |
1416 int backedge_count_delta() { return backedge_count() - backedge_count_start(); } | |
1417 | |
1418 void reset_start_counters() { | |
1419 _invocation_counter_start = invocation_count(); | |
1420 _backedge_counter_start = backedge_count(); | |
1421 } | |
1422 | |
1783 | 1423 InvocationCounter* invocation_counter() { return &_invocation_counter; } |
1424 InvocationCounter* backedge_counter() { return &_backedge_counter; } | |
1425 | |
1426 void set_would_profile(bool p) { _would_profile = p; } | |
1427 bool would_profile() const { return _would_profile; } | |
1428 | |
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
9080
diff
changeset
|
1429 int highest_comp_level() const { return _highest_comp_level; } |
1783 | 1430 void set_highest_comp_level(int level) { _highest_comp_level = level; } |
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
9080
diff
changeset
|
1431 int highest_osr_comp_level() const { return _highest_osr_comp_level; } |
1783 | 1432 void set_highest_osr_comp_level(int level) { _highest_osr_comp_level = level; } |
1433 | |
1434 int num_loops() const { return _num_loops; } | |
1435 void set_num_loops(int n) { _num_loops = n; } | |
1436 int num_blocks() const { return _num_blocks; } | |
1437 void set_num_blocks(int n) { _num_blocks = n; } | |
1438 | |
0 | 1439 bool is_mature() const; // consult mileage and ProfileMaturityPercentage |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1440 static int mileage_of(Method* m); |
4568
8e1d9c27989a
better allocation of methodData's extraData so that exceptions and deoptimizations can be recorded more accurately
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4439
diff
changeset
|
1441 static bool is_empty_data(int size, Bytecodes::Code code); |
0 | 1442 |
1443 // Support for interprocedural escape analysis, from Thomas Kotzmann. | |
1444 enum EscapeFlag { | |
1445 estimated = 1 << 0, | |
78
e1e86702e43e
6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents:
45
diff
changeset
|
1446 return_local = 1 << 1, |
e1e86702e43e
6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents:
45
diff
changeset
|
1447 return_allocated = 1 << 2, |
e1e86702e43e
6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents:
45
diff
changeset
|
1448 allocated_escapes = 1 << 3, |
e1e86702e43e
6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents:
45
diff
changeset
|
1449 unknown_modified = 1 << 4 |
0 | 1450 }; |
1451 | |
1452 intx eflags() { return _eflags; } | |
1453 intx arg_local() { return _arg_local; } | |
1454 intx arg_stack() { return _arg_stack; } | |
1455 intx arg_returned() { return _arg_returned; } | |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1456 uint arg_modified(int a) { ArgInfoData *aid = arg_info(); |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8000
diff
changeset
|
1457 assert(aid != NULL, "arg_info must be not null"); |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1458 assert(a >= 0 && a < aid->number_of_args(), "valid argument number"); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1459 return aid->arg_modified(a); } |
0 | 1460 |
1461 void set_eflags(intx v) { _eflags = v; } | |
1462 void set_arg_local(intx v) { _arg_local = v; } | |
1463 void set_arg_stack(intx v) { _arg_stack = v; } | |
1464 void set_arg_returned(intx v) { _arg_returned = v; } | |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1465 void set_arg_modified(int a, uint v) { ArgInfoData *aid = arg_info(); |
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8000
diff
changeset
|
1466 assert(aid != NULL, "arg_info must be not null"); |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1467 assert(a >= 0 && a < aid->number_of_args(), "valid argument number"); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1468 aid->set_arg_modified(a, v); } |
0 | 1469 |
1470 void clear_escape_info() { _eflags = _arg_local = _arg_stack = _arg_returned = 0; } | |
1471 | |
1472 // Location and size of data area | |
1473 address data_base() const { | |
1474 return (address) _data; | |
1475 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1476 int data_size() const { |
0 | 1477 return _data_size; |
1478 } | |
1479 | |
1480 // Accessors | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1481 Method* method() const { return _method; } |
0 | 1482 |
1483 // Get the data at an arbitrary (sort of) data index. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1484 ProfileData* data_at(int data_index) const; |
0 | 1485 |
1486 // Walk through the data in order. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1487 ProfileData* first_data() const { return data_at(first_di()); } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1488 ProfileData* next_data(ProfileData* current) const; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1489 bool is_valid(ProfileData* current) const { return current != NULL; } |
0 | 1490 |
1491 // Convert a dp (data pointer) to a di (data index). | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1492 int dp_to_di(address dp) const { |
0 | 1493 return dp - ((address)_data); |
1494 } | |
1495 | |
1496 address di_to_dp(int di) { | |
1497 return (address)data_layout_at(di); | |
1498 } | |
1499 | |
1500 // bci to di/dp conversion. | |
1501 address bci_to_dp(int bci); | |
1502 int bci_to_di(int bci) { | |
1503 return dp_to_di(bci_to_dp(bci)); | |
1504 } | |
1505 | |
1506 // Get the data at an arbitrary bci, or NULL if there is none. | |
1507 ProfileData* bci_to_data(int bci); | |
1508 | |
1509 // Same, but try to create an extra_data record if one is needed: | |
1510 ProfileData* allocate_bci_to_data(int bci) { | |
1511 ProfileData* data = bci_to_data(bci); | |
1512 return (data != NULL) ? data : bci_to_extra_data(bci, true); | |
1513 } | |
1514 | |
1515 // Add a handful of extra data records, for trap tracking. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1516 DataLayout* extra_data_base() const { return limit_data_position(); } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1517 DataLayout* extra_data_limit() const { return (DataLayout*)((address)this + size_in_bytes()); } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1518 int extra_data_size() const { return (address)extra_data_limit() |
0 | 1519 - (address)extra_data_base(); } |
1520 static DataLayout* next_extra(DataLayout* dp) { return (DataLayout*)((address)dp + in_bytes(DataLayout::cell_offset(0))); } | |
1521 | |
1522 // Return (uint)-1 for overflow. | |
1523 uint trap_count(int reason) const { | |
1524 assert((uint)reason < _trap_hist_limit, "oob"); | |
1525 return (int)((_trap_hist._array[reason]+1) & _trap_hist_mask) - 1; | |
1526 } | |
1527 // For loops: | |
1528 static uint trap_reason_limit() { return _trap_hist_limit; } | |
1529 static uint trap_count_limit() { return _trap_hist_mask; } | |
1530 uint inc_trap_count(int reason) { | |
1531 // Count another trap, anywhere in this method. | |
1532 assert(reason >= 0, "must be single trap"); | |
5114
dad1ac9dba7d
finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
5111
diff
changeset
|
1533 assert((uint)reason < _trap_hist_limit, "oob"); |
dad1ac9dba7d
finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
5111
diff
changeset
|
1534 uint cnt1 = 1 + _trap_hist._array[reason]; |
dad1ac9dba7d
finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
5111
diff
changeset
|
1535 if ((cnt1 & _trap_hist_mask) != 0) { // if no counter overflow... |
dad1ac9dba7d
finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
5111
diff
changeset
|
1536 _trap_hist._array[reason] = cnt1; |
dad1ac9dba7d
finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
5111
diff
changeset
|
1537 return cnt1; |
0 | 1538 } else { |
5114
dad1ac9dba7d
finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
5111
diff
changeset
|
1539 return _trap_hist_mask + (++_nof_overflow_traps); |
0 | 1540 } |
1541 } | |
1542 | |
1543 uint overflow_trap_count() const { | |
1544 return _nof_overflow_traps; | |
1545 } | |
1546 uint overflow_recompile_count() const { | |
1547 return _nof_overflow_recompiles; | |
1548 } | |
1549 void inc_overflow_recompile_count() { | |
1550 _nof_overflow_recompiles += 1; | |
1551 } | |
1552 uint decompile_count() const { | |
1553 return _nof_decompiles; | |
1554 } | |
1555 void inc_decompile_count() { | |
1556 _nof_decompiles += 1; | |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
948
diff
changeset
|
1557 if (decompile_count() > (uint)PerMethodRecompilationCutoff) { |
7998 | 1558 method()->set_not_compilable(CompLevel_full_optimization, true, "decompile_count > PerMethodRecompilationCutoff"); |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
948
diff
changeset
|
1559 } |
0 | 1560 } |
1561 | |
1562 // Support for code generation | |
1563 static ByteSize data_offset() { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1564 return byte_offset_of(MethodData, _data[0]); |
0 | 1565 } |
1566 | |
5114
dad1ac9dba7d
finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
5111
diff
changeset
|
1567 static ByteSize trap_history_offset() { |
6948
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
1568 return byte_offset_of(MethodData, _trap_hist._array); |
5114
dad1ac9dba7d
finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
5111
diff
changeset
|
1569 } |
dad1ac9dba7d
finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
5111
diff
changeset
|
1570 |
1783 | 1571 static ByteSize invocation_counter_offset() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1572 return byte_offset_of(MethodData, _invocation_counter); |
1783 | 1573 } |
1574 static ByteSize backedge_counter_offset() { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1575 return byte_offset_of(MethodData, _backedge_counter); |
1783 | 1576 } |
1577 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1578 // Deallocation support - no pointer fields to deallocate |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1579 void deallocate_contents(ClassLoaderData* loader_data) {} |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1580 |
0 | 1581 // GC support |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1582 void set_size(int object_size_in_bytes) { _size = object_size_in_bytes; } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1583 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1584 // Printing |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1585 #ifndef PRODUCT |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1586 void print_on (outputStream* st) const; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1587 #endif |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1588 void print_value_on(outputStream* st) const; |
0 | 1589 |
1590 #ifndef PRODUCT | |
1591 // printing support for method data | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1592 void print_data_on(outputStream* st) const; |
0 | 1593 #endif |
1594 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1595 const char* internal_name() const { return "{method data}"; } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1596 |
0 | 1597 // verification |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1598 void verify_on(outputStream* st); |
0 | 1599 void verify_data_on(outputStream* st); |
1600 }; | |
1972 | 1601 |
1602 #endif // SHARE_VM_OOPS_METHODDATAOOP_HPP |