Mercurial > hg > graal-jvmci-8
annotate src/share/vm/oops/methodData.hpp @ 14420:abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
Summary: Implement profiling for c2 jit compilation. Also enable new cppInterpreter features.
Reviewed-by: kvn
| author | goetz |
|---|---|
| date | Sun, 15 Sep 2013 15:28:58 +0200 |
| parents | 92ef81e2f571 |
| children | 2b8e28fdf503 |
| 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 { | |
| 75 private: | |
| 76 // Every data layout begins with a header. This header | |
| 77 // contains a tag, which is used to indicate the size/layout | |
| 78 // of the data, 4 bits of flags, which can be used in any way, | |
| 79 // 4 bits of trap history (none/one reason/many reasons), | |
| 80 // and a bci, which is used to tie this piece of data to a | |
| 81 // specific bci in the bytecodes. | |
| 82 union { | |
| 83 intptr_t _bits; | |
| 84 struct { | |
| 85 u1 _tag; | |
| 86 u1 _flags; | |
| 87 u2 _bci; | |
| 88 } _struct; | |
| 89 } _header; | |
| 90 | |
| 91 // The data layout has an arbitrary number of cells, each sized | |
| 92 // to accomodate a pointer or an integer. | |
| 93 intptr_t _cells[1]; | |
| 94 | |
| 95 // Some types of data layouts need a length field. | |
| 96 static bool needs_array_len(u1 tag); | |
| 97 | |
| 98 public: | |
| 99 enum { | |
| 100 counter_increment = 1 | |
| 101 }; | |
| 102 | |
| 103 enum { | |
| 104 cell_size = sizeof(intptr_t) | |
| 105 }; | |
| 106 | |
| 107 // Tag values | |
| 108 enum { | |
| 109 no_tag, | |
| 110 bit_data_tag, | |
| 111 counter_data_tag, | |
| 112 jump_data_tag, | |
| 113 receiver_type_data_tag, | |
| 114 virtual_call_data_tag, | |
| 115 ret_data_tag, | |
| 116 branch_data_tag, | |
|
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
117 multi_branch_data_tag, |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
118 arg_info_data_tag |
| 0 | 119 }; |
| 120 | |
| 121 enum { | |
| 122 // The _struct._flags word is formatted as [trap_state:4 | flags:4]. | |
| 123 // The trap state breaks down further as [recompile:1 | reason:3]. | |
| 124 // This further breakdown is defined in deoptimization.cpp. | |
| 125 // See Deoptimization::trap_state_reason for an assert that | |
| 126 // trap_bits is big enough to hold reasons < Reason_RECORDED_LIMIT. | |
| 127 // | |
| 128 // The trap_state is collected only if ProfileTraps is true. | |
| 129 trap_bits = 1+3, // 3: enough to distinguish [0..Reason_RECORDED_LIMIT]. | |
| 130 trap_shift = BitsPerByte - trap_bits, | |
| 131 trap_mask = right_n_bits(trap_bits), | |
| 132 trap_mask_in_place = (trap_mask << trap_shift), | |
| 133 flag_limit = trap_shift, | |
| 134 flag_mask = right_n_bits(flag_limit), | |
| 135 first_flag = 0 | |
| 136 }; | |
| 137 | |
| 138 // Size computation | |
| 139 static int header_size_in_bytes() { | |
| 140 return cell_size; | |
| 141 } | |
| 142 static int header_size_in_cells() { | |
| 143 return 1; | |
| 144 } | |
| 145 | |
| 146 static int compute_size_in_bytes(int cell_count) { | |
| 147 return header_size_in_bytes() + cell_count * cell_size; | |
| 148 } | |
| 149 | |
| 150 // Initialization | |
| 151 void initialize(u1 tag, u2 bci, int cell_count); | |
| 152 | |
| 153 // Accessors | |
| 154 u1 tag() { | |
| 155 return _header._struct._tag; | |
| 156 } | |
| 157 | |
| 158 // Return a few bits of trap state. Range is [0..trap_mask]. | |
| 159 // The state tells if traps with zero, one, or many reasons have occurred. | |
| 160 // It also tells whether zero or many recompilations have occurred. | |
| 161 // The associated trap histogram in the MDO itself tells whether | |
| 162 // traps are common or not. If a BCI shows that a trap X has | |
| 163 // occurred, and the MDO shows N occurrences of X, we make the | |
| 164 // simplifying assumption that all N occurrences can be blamed | |
| 165 // on that BCI. | |
| 166 int trap_state() { | |
| 167 return ((_header._struct._flags >> trap_shift) & trap_mask); | |
| 168 } | |
| 169 | |
| 170 void set_trap_state(int new_state) { | |
| 171 assert(ProfileTraps, "used only under +ProfileTraps"); | |
| 172 uint old_flags = (_header._struct._flags & flag_mask); | |
| 173 _header._struct._flags = (new_state << trap_shift) | old_flags; | |
| 174 } | |
| 175 | |
| 176 u1 flags() { | |
| 177 return _header._struct._flags; | |
| 178 } | |
| 179 | |
| 180 u2 bci() { | |
| 181 return _header._struct._bci; | |
| 182 } | |
| 183 | |
| 184 void set_header(intptr_t value) { | |
| 185 _header._bits = value; | |
| 186 } | |
| 187 void release_set_header(intptr_t value) { | |
| 188 OrderAccess::release_store_ptr(&_header._bits, value); | |
| 189 } | |
| 190 intptr_t header() { | |
| 191 return _header._bits; | |
| 192 } | |
| 193 void set_cell_at(int index, intptr_t value) { | |
| 194 _cells[index] = value; | |
| 195 } | |
| 196 void release_set_cell_at(int index, intptr_t value) { | |
| 197 OrderAccess::release_store_ptr(&_cells[index], value); | |
| 198 } | |
| 199 intptr_t cell_at(int index) { | |
| 200 return _cells[index]; | |
| 201 } | |
| 202 | |
| 203 void set_flag_at(int flag_number) { | |
| 204 assert(flag_number < flag_limit, "oob"); | |
| 205 _header._struct._flags |= (0x1 << flag_number); | |
| 206 } | |
| 207 bool flag_at(int flag_number) { | |
| 208 assert(flag_number < flag_limit, "oob"); | |
| 209 return (_header._struct._flags & (0x1 << flag_number)) != 0; | |
| 210 } | |
| 211 | |
| 212 // Low-level support for code generation. | |
| 213 static ByteSize header_offset() { | |
| 214 return byte_offset_of(DataLayout, _header); | |
| 215 } | |
| 216 static ByteSize tag_offset() { | |
| 217 return byte_offset_of(DataLayout, _header._struct._tag); | |
| 218 } | |
| 219 static ByteSize flags_offset() { | |
| 220 return byte_offset_of(DataLayout, _header._struct._flags); | |
| 221 } | |
| 222 static ByteSize bci_offset() { | |
| 223 return byte_offset_of(DataLayout, _header._struct._bci); | |
| 224 } | |
| 225 static ByteSize cell_offset(int index) { | |
|
2333
f767174aac14
7021653: Parfait issue in hotspot/src/share/vm/oops/methodDataOops.hpp
coleenp
parents:
2264
diff
changeset
|
226 return byte_offset_of(DataLayout, _cells) + in_ByteSize(index * cell_size); |
| 0 | 227 } |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
228 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
229 static int cell_offset_in_bytes(int index) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
230 return (int)offset_of(DataLayout, _cells[index]); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
231 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
232 #endif // CC_INTERP |
| 0 | 233 // Return a value which, when or-ed as a byte into _flags, sets the flag. |
| 234 static int flag_number_to_byte_constant(int flag_number) { | |
| 235 assert(0 <= flag_number && flag_number < flag_limit, "oob"); | |
| 236 DataLayout temp; temp.set_header(0); | |
| 237 temp.set_flag_at(flag_number); | |
| 238 return temp._header._struct._flags; | |
| 239 } | |
| 240 // Return a value which, when or-ed as a word into _header, sets the flag. | |
| 241 static intptr_t flag_mask_to_header_mask(int byte_constant) { | |
| 242 DataLayout temp; temp.set_header(0); | |
| 243 temp._header._struct._flags = byte_constant; | |
| 244 return temp._header._bits; | |
| 245 } | |
| 941 | 246 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
247 ProfileData* data_in(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
248 |
| 941 | 249 // GC support |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
250 void clean_weak_klass_links(BoolObjectClosure* cl); |
| 0 | 251 }; |
| 252 | |
| 253 | |
| 254 // ProfileData class hierarchy | |
| 255 class ProfileData; | |
| 256 class BitData; | |
| 257 class CounterData; | |
| 258 class ReceiverTypeData; | |
| 259 class VirtualCallData; | |
| 260 class RetData; | |
| 261 class JumpData; | |
| 262 class BranchData; | |
| 263 class ArrayData; | |
| 264 class MultiBranchData; | |
|
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
265 class ArgInfoData; |
| 0 | 266 |
| 267 | |
| 268 // ProfileData | |
| 269 // | |
| 270 // A ProfileData object is created to refer to a section of profiling | |
| 271 // data in a structured way. | |
| 272 class ProfileData : public ResourceObj { | |
| 273 private: | |
| 274 #ifndef PRODUCT | |
| 275 enum { | |
| 276 tab_width_one = 16, | |
| 277 tab_width_two = 36 | |
| 278 }; | |
| 279 #endif // !PRODUCT | |
| 280 | |
| 281 // This is a pointer to a section of profiling data. | |
| 282 DataLayout* _data; | |
| 283 | |
| 284 protected: | |
| 285 DataLayout* data() { return _data; } | |
| 286 | |
| 287 enum { | |
| 288 cell_size = DataLayout::cell_size | |
| 289 }; | |
| 290 | |
| 291 public: | |
| 292 // How many cells are in this? | |
| 293 virtual int cell_count() { | |
| 294 ShouldNotReachHere(); | |
| 295 return -1; | |
| 296 } | |
| 297 | |
| 298 // Return the size of this data. | |
| 299 int size_in_bytes() { | |
| 300 return DataLayout::compute_size_in_bytes(cell_count()); | |
| 301 } | |
| 302 | |
| 303 protected: | |
| 304 // Low-level accessors for underlying data | |
| 305 void set_intptr_at(int index, intptr_t value) { | |
| 306 assert(0 <= index && index < cell_count(), "oob"); | |
| 307 data()->set_cell_at(index, value); | |
| 308 } | |
| 309 void release_set_intptr_at(int index, intptr_t value) { | |
| 310 assert(0 <= index && index < cell_count(), "oob"); | |
| 311 data()->release_set_cell_at(index, value); | |
| 312 } | |
| 313 intptr_t intptr_at(int index) { | |
| 314 assert(0 <= index && index < cell_count(), "oob"); | |
| 315 return data()->cell_at(index); | |
| 316 } | |
| 317 void set_uint_at(int index, uint value) { | |
| 318 set_intptr_at(index, (intptr_t) value); | |
| 319 } | |
| 320 void release_set_uint_at(int index, uint value) { | |
| 321 release_set_intptr_at(index, (intptr_t) value); | |
| 322 } | |
| 323 uint uint_at(int index) { | |
| 324 return (uint)intptr_at(index); | |
| 325 } | |
| 326 void set_int_at(int index, int value) { | |
| 327 set_intptr_at(index, (intptr_t) value); | |
| 328 } | |
| 329 void release_set_int_at(int index, int value) { | |
| 330 release_set_intptr_at(index, (intptr_t) value); | |
| 331 } | |
| 332 int int_at(int index) { | |
| 333 return (int)intptr_at(index); | |
| 334 } | |
| 335 int int_at_unchecked(int index) { | |
| 336 return (int)data()->cell_at(index); | |
| 337 } | |
| 338 void set_oop_at(int index, oop value) { | |
| 339 set_intptr_at(index, (intptr_t) value); | |
| 340 } | |
| 341 oop oop_at(int index) { | |
| 342 return (oop)intptr_at(index); | |
| 343 } | |
| 344 | |
| 345 void set_flag_at(int flag_number) { | |
| 346 data()->set_flag_at(flag_number); | |
| 347 } | |
| 348 bool flag_at(int flag_number) { | |
| 349 return data()->flag_at(flag_number); | |
| 350 } | |
| 351 | |
| 352 // two convenient imports for use by subclasses: | |
| 353 static ByteSize cell_offset(int index) { | |
| 354 return DataLayout::cell_offset(index); | |
| 355 } | |
| 356 static int flag_number_to_byte_constant(int flag_number) { | |
| 357 return DataLayout::flag_number_to_byte_constant(flag_number); | |
| 358 } | |
| 359 | |
| 360 ProfileData(DataLayout* data) { | |
| 361 _data = data; | |
| 362 } | |
| 363 | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
364 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
365 // Static low level accessors for DataLayout with ProfileData's semantics. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
366 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
367 static int cell_offset_in_bytes(int index) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
368 return DataLayout::cell_offset_in_bytes(index); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
369 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
370 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
371 static void increment_uint_at_no_overflow(DataLayout* layout, int index, |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
372 int inc = DataLayout::counter_increment) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
373 uint count = ((uint)layout->cell_at(index)) + inc; |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
374 if (count == 0) return; |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
375 layout->set_cell_at(index, (intptr_t) count); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
376 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
377 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
378 static int int_at(DataLayout* layout, int index) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
379 return (int)layout->cell_at(index); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
380 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
381 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
382 static int uint_at(DataLayout* layout, int index) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
383 return (uint)layout->cell_at(index); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
384 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
385 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
386 static oop oop_at(DataLayout* layout, int index) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
387 return (oop)layout->cell_at(index); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
388 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
389 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
390 static void set_intptr_at(DataLayout* layout, int index, intptr_t value) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
391 layout->set_cell_at(index, (intptr_t) value); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
392 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
393 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
394 static void set_flag_at(DataLayout* layout, int flag_number) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
395 layout->set_flag_at(flag_number); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
396 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
397 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
398 |
| 0 | 399 public: |
| 400 // Constructor for invalid ProfileData. | |
| 401 ProfileData(); | |
| 402 | |
| 403 u2 bci() { | |
| 404 return data()->bci(); | |
| 405 } | |
| 406 | |
| 407 address dp() { | |
| 408 return (address)_data; | |
| 409 } | |
| 410 | |
| 411 int trap_state() { | |
| 412 return data()->trap_state(); | |
| 413 } | |
| 414 void set_trap_state(int new_state) { | |
| 415 data()->set_trap_state(new_state); | |
| 416 } | |
| 417 | |
| 418 // Type checking | |
| 419 virtual bool is_BitData() { return false; } | |
| 420 virtual bool is_CounterData() { return false; } | |
| 421 virtual bool is_JumpData() { return false; } | |
| 422 virtual bool is_ReceiverTypeData(){ return false; } | |
| 423 virtual bool is_VirtualCallData() { return false; } | |
| 424 virtual bool is_RetData() { return false; } | |
| 425 virtual bool is_BranchData() { return false; } | |
| 426 virtual bool is_ArrayData() { return false; } | |
| 427 virtual bool is_MultiBranchData() { return false; } | |
|
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
428 virtual bool is_ArgInfoData() { return false; } |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
429 |
| 0 | 430 |
| 431 BitData* as_BitData() { | |
| 432 assert(is_BitData(), "wrong type"); | |
| 433 return is_BitData() ? (BitData*) this : NULL; | |
| 434 } | |
| 435 CounterData* as_CounterData() { | |
| 436 assert(is_CounterData(), "wrong type"); | |
| 437 return is_CounterData() ? (CounterData*) this : NULL; | |
| 438 } | |
| 439 JumpData* as_JumpData() { | |
| 440 assert(is_JumpData(), "wrong type"); | |
| 441 return is_JumpData() ? (JumpData*) this : NULL; | |
| 442 } | |
| 443 ReceiverTypeData* as_ReceiverTypeData() { | |
| 444 assert(is_ReceiverTypeData(), "wrong type"); | |
| 445 return is_ReceiverTypeData() ? (ReceiverTypeData*)this : NULL; | |
| 446 } | |
| 447 VirtualCallData* as_VirtualCallData() { | |
| 448 assert(is_VirtualCallData(), "wrong type"); | |
| 449 return is_VirtualCallData() ? (VirtualCallData*)this : NULL; | |
| 450 } | |
| 451 RetData* as_RetData() { | |
| 452 assert(is_RetData(), "wrong type"); | |
| 453 return is_RetData() ? (RetData*) this : NULL; | |
| 454 } | |
| 455 BranchData* as_BranchData() { | |
| 456 assert(is_BranchData(), "wrong type"); | |
| 457 return is_BranchData() ? (BranchData*) this : NULL; | |
| 458 } | |
| 459 ArrayData* as_ArrayData() { | |
| 460 assert(is_ArrayData(), "wrong type"); | |
| 461 return is_ArrayData() ? (ArrayData*) this : NULL; | |
| 462 } | |
| 463 MultiBranchData* as_MultiBranchData() { | |
| 464 assert(is_MultiBranchData(), "wrong type"); | |
| 465 return is_MultiBranchData() ? (MultiBranchData*)this : NULL; | |
| 466 } | |
|
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
467 ArgInfoData* as_ArgInfoData() { |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
468 assert(is_ArgInfoData(), "wrong type"); |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
469 return is_ArgInfoData() ? (ArgInfoData*)this : NULL; |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
470 } |
| 0 | 471 |
| 472 | |
| 473 // Subclass specific initialization | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
474 virtual void post_initialize(BytecodeStream* stream, MethodData* mdo) {} |
| 0 | 475 |
| 476 // GC support | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
477 virtual void clean_weak_klass_links(BoolObjectClosure* is_alive_closure) {} |
| 0 | 478 |
| 479 // CI translation: ProfileData can represent both MethodDataOop data | |
| 480 // as well as CIMethodData data. This function is provided for translating | |
| 481 // an oop in a ProfileData to the ci equivalent. Generally speaking, | |
| 482 // most ProfileData don't require any translation, so we provide the null | |
| 483 // translation here, and the required translators are in the ci subclasses. | |
| 484 virtual void translate_from(ProfileData* data) {} | |
| 485 | |
| 486 virtual void print_data_on(outputStream* st) { | |
| 487 ShouldNotReachHere(); | |
| 488 } | |
| 489 | |
| 490 #ifndef PRODUCT | |
| 491 void print_shared(outputStream* st, const char* name); | |
| 492 void tab(outputStream* st); | |
| 493 #endif | |
| 494 }; | |
| 495 | |
| 496 // BitData | |
| 497 // | |
| 498 // A BitData holds a flag or two in its header. | |
| 499 class BitData : public ProfileData { | |
| 500 protected: | |
| 501 enum { | |
| 502 // null_seen: | |
| 503 // saw a null operand (cast/aastore/instanceof) | |
| 504 null_seen_flag = DataLayout::first_flag + 0 | |
| 505 }; | |
| 506 enum { bit_cell_count = 0 }; // no additional data fields needed. | |
| 507 public: | |
| 508 BitData(DataLayout* layout) : ProfileData(layout) { | |
| 509 } | |
| 510 | |
| 511 virtual bool is_BitData() { return true; } | |
| 512 | |
| 513 static int static_cell_count() { | |
| 514 return bit_cell_count; | |
| 515 } | |
| 516 | |
| 517 virtual int cell_count() { | |
| 518 return static_cell_count(); | |
| 519 } | |
| 520 | |
| 521 // Accessor | |
| 522 | |
| 523 // The null_seen flag bit is specially known to the interpreter. | |
| 524 // Consulting it allows the compiler to avoid setting up null_check traps. | |
| 525 bool null_seen() { return flag_at(null_seen_flag); } | |
| 526 void set_null_seen() { set_flag_at(null_seen_flag); } | |
| 527 | |
| 528 | |
| 529 // Code generation support | |
| 530 static int null_seen_byte_constant() { | |
| 531 return flag_number_to_byte_constant(null_seen_flag); | |
| 532 } | |
| 533 | |
| 534 static ByteSize bit_data_size() { | |
| 535 return cell_offset(bit_cell_count); | |
| 536 } | |
| 537 | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
538 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
539 static int bit_data_size_in_bytes() { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
540 return cell_offset_in_bytes(bit_cell_count); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
541 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
542 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
543 static void set_null_seen(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
544 set_flag_at(layout, null_seen_flag); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
545 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
546 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
547 static DataLayout* advance(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
548 return (DataLayout*) (((address)layout) + (ssize_t)BitData::bit_data_size_in_bytes()); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
549 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
550 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
551 |
| 0 | 552 #ifndef PRODUCT |
| 553 void print_data_on(outputStream* st); | |
| 554 #endif | |
| 555 }; | |
| 556 | |
| 557 // CounterData | |
| 558 // | |
| 559 // A CounterData corresponds to a simple counter. | |
| 560 class CounterData : public BitData { | |
| 561 protected: | |
| 562 enum { | |
| 563 count_off, | |
| 564 counter_cell_count | |
| 565 }; | |
| 566 public: | |
| 567 CounterData(DataLayout* layout) : BitData(layout) {} | |
| 568 | |
| 569 virtual bool is_CounterData() { return true; } | |
| 570 | |
| 571 static int static_cell_count() { | |
| 572 return counter_cell_count; | |
| 573 } | |
| 574 | |
| 575 virtual int cell_count() { | |
| 576 return static_cell_count(); | |
| 577 } | |
| 578 | |
| 579 // Direct accessor | |
| 580 uint count() { | |
| 581 return uint_at(count_off); | |
| 582 } | |
| 583 | |
| 584 // Code generation support | |
| 585 static ByteSize count_offset() { | |
| 586 return cell_offset(count_off); | |
| 587 } | |
| 588 static ByteSize counter_data_size() { | |
| 589 return cell_offset(counter_cell_count); | |
| 590 } | |
| 591 | |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
592 void set_count(uint count) { |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
593 set_uint_at(count_off, count); |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
594 } |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
595 |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
596 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
597 static int counter_data_size_in_bytes() { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
598 return cell_offset_in_bytes(counter_cell_count); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
599 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
600 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
601 static void increment_count_no_overflow(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
602 increment_uint_at_no_overflow(layout, count_off); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
603 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
604 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
605 // Support counter decrementation at checkcast / subtype check failed. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
606 static void decrement_count(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
607 increment_uint_at_no_overflow(layout, count_off, -1); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
608 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
609 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
610 static DataLayout* advance(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
611 return (DataLayout*) (((address)layout) + (ssize_t)CounterData::counter_data_size_in_bytes()); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
612 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
613 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
614 |
| 0 | 615 #ifndef PRODUCT |
| 616 void print_data_on(outputStream* st); | |
| 617 #endif | |
| 618 }; | |
| 619 | |
| 620 // JumpData | |
| 621 // | |
| 622 // A JumpData is used to access profiling information for a direct | |
| 623 // branch. It is a counter, used for counting the number of branches, | |
| 624 // plus a data displacement, used for realigning the data pointer to | |
| 625 // the corresponding target bci. | |
| 626 class JumpData : public ProfileData { | |
| 627 protected: | |
| 628 enum { | |
| 629 taken_off_set, | |
| 630 displacement_off_set, | |
| 631 jump_cell_count | |
| 632 }; | |
| 633 | |
| 634 void set_displacement(int displacement) { | |
| 635 set_int_at(displacement_off_set, displacement); | |
| 636 } | |
| 637 | |
| 638 public: | |
| 639 JumpData(DataLayout* layout) : ProfileData(layout) { | |
| 640 assert(layout->tag() == DataLayout::jump_data_tag || | |
| 641 layout->tag() == DataLayout::branch_data_tag, "wrong type"); | |
| 642 } | |
| 643 | |
| 644 virtual bool is_JumpData() { return true; } | |
| 645 | |
| 646 static int static_cell_count() { | |
| 647 return jump_cell_count; | |
| 648 } | |
| 649 | |
| 650 virtual int cell_count() { | |
| 651 return static_cell_count(); | |
| 652 } | |
| 653 | |
| 654 // Direct accessor | |
| 655 uint taken() { | |
| 656 return uint_at(taken_off_set); | |
| 657 } | |
|
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
658 |
|
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
659 void set_taken(uint cnt) { |
|
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
660 set_uint_at(taken_off_set, cnt); |
|
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
661 } |
|
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
662 |
| 0 | 663 // Saturating counter |
| 664 uint inc_taken() { | |
| 665 uint cnt = taken() + 1; | |
| 666 // Did we wrap? Will compiler screw us?? | |
| 667 if (cnt == 0) cnt--; | |
| 668 set_uint_at(taken_off_set, cnt); | |
| 669 return cnt; | |
| 670 } | |
| 671 | |
| 672 int displacement() { | |
| 673 return int_at(displacement_off_set); | |
| 674 } | |
| 675 | |
| 676 // Code generation support | |
| 677 static ByteSize taken_offset() { | |
| 678 return cell_offset(taken_off_set); | |
| 679 } | |
| 680 | |
| 681 static ByteSize displacement_offset() { | |
| 682 return cell_offset(displacement_off_set); | |
| 683 } | |
| 684 | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
685 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
686 static void increment_taken_count_no_overflow(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
687 increment_uint_at_no_overflow(layout, taken_off_set); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
688 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
689 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
690 static DataLayout* advance_taken(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
691 return (DataLayout*) (((address)layout) + (ssize_t)int_at(layout, displacement_off_set)); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
692 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
693 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
694 static uint taken_count(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
695 return (uint) uint_at(layout, taken_off_set); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
696 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
697 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
698 |
| 0 | 699 // Specific initialization. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
700 void post_initialize(BytecodeStream* stream, MethodData* mdo); |
| 0 | 701 |
| 702 #ifndef PRODUCT | |
| 703 void print_data_on(outputStream* st); | |
| 704 #endif | |
| 705 }; | |
| 706 | |
| 707 // ReceiverTypeData | |
| 708 // | |
| 709 // A ReceiverTypeData is used to access profiling information about a | |
| 710 // 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
|
711 // that the check is reached, and a series of (Klass*, count) pairs |
| 0 | 712 // which are used to store a type profile for the receiver of the check. |
| 713 class ReceiverTypeData : public CounterData { | |
| 714 protected: | |
| 715 enum { | |
| 716 receiver0_offset = counter_cell_count, | |
| 717 count0_offset, | |
| 718 receiver_type_row_cell_count = (count0_offset + 1) - receiver0_offset | |
| 719 }; | |
| 720 | |
| 721 public: | |
| 722 ReceiverTypeData(DataLayout* layout) : CounterData(layout) { | |
| 723 assert(layout->tag() == DataLayout::receiver_type_data_tag || | |
| 724 layout->tag() == DataLayout::virtual_call_data_tag, "wrong type"); | |
| 725 } | |
| 726 | |
| 727 virtual bool is_ReceiverTypeData() { return true; } | |
| 728 | |
| 729 static int static_cell_count() { | |
| 730 return counter_cell_count + (uint) TypeProfileWidth * receiver_type_row_cell_count; | |
| 731 } | |
| 732 | |
| 733 virtual int cell_count() { | |
| 734 return static_cell_count(); | |
| 735 } | |
| 736 | |
| 737 // Direct accessors | |
| 738 static uint row_limit() { | |
| 739 return TypeProfileWidth; | |
| 740 } | |
| 741 static int receiver_cell_index(uint row) { | |
| 742 return receiver0_offset + row * receiver_type_row_cell_count; | |
| 743 } | |
| 744 static int receiver_count_cell_index(uint row) { | |
| 745 return count0_offset + row * receiver_type_row_cell_count; | |
| 746 } | |
| 747 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
748 Klass* receiver(uint row) { |
| 0 | 749 assert(row < row_limit(), "oob"); |
| 750 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
751 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
|
752 assert(recv == NULL || recv->is_klass(), "wrong type"); |
| 0 | 753 return recv; |
| 754 } | |
| 755 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
756 void set_receiver(uint row, Klass* k) { |
| 941 | 757 assert((uint)row < row_limit(), "oob"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
758 set_intptr_at(receiver_cell_index(row), (uintptr_t)k); |
| 941 | 759 } |
| 760 | |
| 0 | 761 uint receiver_count(uint row) { |
| 762 assert(row < row_limit(), "oob"); | |
| 763 return uint_at(receiver_count_cell_index(row)); | |
| 764 } | |
| 765 | |
| 941 | 766 void set_receiver_count(uint row, uint count) { |
| 767 assert(row < row_limit(), "oob"); | |
| 768 set_uint_at(receiver_count_cell_index(row), count); | |
| 769 } | |
| 770 | |
| 771 void clear_row(uint row) { | |
| 772 assert(row < row_limit(), "oob"); | |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
773 // Clear total count - indicator of polymorphic call site. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
774 // 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
|
775 // 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
|
776 // 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
|
777 // 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
|
778 // 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
|
779 // 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
|
780 // 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
|
781 // 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
|
782 // with updated MDO after executing method in Interpreter. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
783 // 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
|
784 // during next call execution. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
785 // |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
786 // 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
|
787 // 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
|
788 // |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
789 set_count(0); |
| 941 | 790 set_receiver(row, NULL); |
| 791 set_receiver_count(row, 0); | |
| 792 } | |
| 793 | |
| 0 | 794 // Code generation support |
| 795 static ByteSize receiver_offset(uint row) { | |
| 796 return cell_offset(receiver_cell_index(row)); | |
| 797 } | |
| 798 static ByteSize receiver_count_offset(uint row) { | |
| 799 return cell_offset(receiver_count_cell_index(row)); | |
| 800 } | |
| 801 static ByteSize receiver_type_data_size() { | |
| 802 return cell_offset(static_cell_count()); | |
| 803 } | |
| 804 | |
| 805 // GC support | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
806 virtual void clean_weak_klass_links(BoolObjectClosure* is_alive_closure); |
| 0 | 807 |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
808 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
809 static int receiver_type_data_size_in_bytes() { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
810 return cell_offset_in_bytes(static_cell_count()); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
811 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
812 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
813 static Klass *receiver_unchecked(DataLayout* layout, uint row) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
814 oop recv = oop_at(layout, receiver_cell_index(row)); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
815 return (Klass *)recv; |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
816 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
817 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
818 static void increment_receiver_count_no_overflow(DataLayout* layout, Klass *rcvr) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
819 const int num_rows = row_limit(); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
820 // Receiver already exists? |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
821 for (int row = 0; row < num_rows; row++) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
822 if (receiver_unchecked(layout, row) == rcvr) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
823 increment_uint_at_no_overflow(layout, receiver_count_cell_index(row)); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
824 return; |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
825 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
826 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
827 // New receiver, find a free slot. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
828 for (int row = 0; row < num_rows; row++) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
829 if (receiver_unchecked(layout, row) == NULL) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
830 set_intptr_at(layout, receiver_cell_index(row), (intptr_t)rcvr); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
831 increment_uint_at_no_overflow(layout, receiver_count_cell_index(row)); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
832 return; |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
833 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
834 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
835 // Receiver did not match any saved receiver and there is no empty row for it. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
836 // Increment total counter to indicate polymorphic case. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
837 increment_count_no_overflow(layout); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
838 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
839 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
840 static DataLayout* advance(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
841 return (DataLayout*) (((address)layout) + (ssize_t)ReceiverTypeData::receiver_type_data_size_in_bytes()); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
842 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
843 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
844 |
| 0 | 845 #ifndef PRODUCT |
| 846 void print_receiver_data_on(outputStream* st); | |
| 847 void print_data_on(outputStream* st); | |
| 848 #endif | |
| 849 }; | |
| 850 | |
| 851 // VirtualCallData | |
| 852 // | |
| 853 // A VirtualCallData is used to access profiling information about a | |
| 854 // virtual call. For now, it has nothing more than a ReceiverTypeData. | |
| 855 class VirtualCallData : public ReceiverTypeData { | |
| 856 public: | |
| 857 VirtualCallData(DataLayout* layout) : ReceiverTypeData(layout) { | |
| 858 assert(layout->tag() == DataLayout::virtual_call_data_tag, "wrong type"); | |
| 859 } | |
| 860 | |
| 861 virtual bool is_VirtualCallData() { return true; } | |
| 862 | |
| 863 static int static_cell_count() { | |
| 864 // At this point we could add more profile state, e.g., for arguments. | |
| 865 // But for now it's the same size as the base record type. | |
| 866 return ReceiverTypeData::static_cell_count(); | |
| 867 } | |
| 868 | |
| 869 virtual int cell_count() { | |
| 870 return static_cell_count(); | |
| 871 } | |
| 872 | |
| 873 // Direct accessors | |
| 874 static ByteSize virtual_call_data_size() { | |
| 875 return cell_offset(static_cell_count()); | |
| 876 } | |
| 877 | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
878 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
879 static int virtual_call_data_size_in_bytes() { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
880 return cell_offset_in_bytes(static_cell_count()); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
881 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
882 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
883 static DataLayout* advance(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
884 return (DataLayout*) (((address)layout) + (ssize_t)VirtualCallData::virtual_call_data_size_in_bytes()); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
885 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
886 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
887 |
| 0 | 888 #ifndef PRODUCT |
| 889 void print_data_on(outputStream* st); | |
| 890 #endif | |
| 891 }; | |
| 892 | |
| 893 // RetData | |
| 894 // | |
| 895 // A RetData is used to access profiling information for a ret bytecode. | |
| 896 // It is composed of a count of the number of times that the ret has | |
| 897 // been executed, followed by a series of triples of the form | |
| 898 // (bci, count, di) which count the number of times that some bci was the | |
| 899 // target of the ret and cache a corresponding data displacement. | |
| 900 class RetData : public CounterData { | |
| 901 protected: | |
| 902 enum { | |
| 903 bci0_offset = counter_cell_count, | |
| 904 count0_offset, | |
| 905 displacement0_offset, | |
| 906 ret_row_cell_count = (displacement0_offset + 1) - bci0_offset | |
| 907 }; | |
| 908 | |
| 909 void set_bci(uint row, int bci) { | |
| 910 assert((uint)row < row_limit(), "oob"); | |
| 911 set_int_at(bci0_offset + row * ret_row_cell_count, bci); | |
| 912 } | |
| 913 void release_set_bci(uint row, int bci) { | |
| 914 assert((uint)row < row_limit(), "oob"); | |
| 915 // 'release' when setting the bci acts as a valid flag for other | |
| 916 // threads wrt bci_count and bci_displacement. | |
| 917 release_set_int_at(bci0_offset + row * ret_row_cell_count, bci); | |
| 918 } | |
| 919 void set_bci_count(uint row, uint count) { | |
| 920 assert((uint)row < row_limit(), "oob"); | |
| 921 set_uint_at(count0_offset + row * ret_row_cell_count, count); | |
| 922 } | |
| 923 void set_bci_displacement(uint row, int disp) { | |
| 924 set_int_at(displacement0_offset + row * ret_row_cell_count, disp); | |
| 925 } | |
| 926 | |
| 927 public: | |
| 928 RetData(DataLayout* layout) : CounterData(layout) { | |
| 929 assert(layout->tag() == DataLayout::ret_data_tag, "wrong type"); | |
| 930 } | |
| 931 | |
| 932 virtual bool is_RetData() { return true; } | |
| 933 | |
| 934 enum { | |
| 935 no_bci = -1 // value of bci when bci1/2 are not in use. | |
| 936 }; | |
| 937 | |
| 938 static int static_cell_count() { | |
| 939 return counter_cell_count + (uint) BciProfileWidth * ret_row_cell_count; | |
| 940 } | |
| 941 | |
| 942 virtual int cell_count() { | |
| 943 return static_cell_count(); | |
| 944 } | |
| 945 | |
| 946 static uint row_limit() { | |
| 947 return BciProfileWidth; | |
| 948 } | |
| 949 static int bci_cell_index(uint row) { | |
| 950 return bci0_offset + row * ret_row_cell_count; | |
| 951 } | |
| 952 static int bci_count_cell_index(uint row) { | |
| 953 return count0_offset + row * ret_row_cell_count; | |
| 954 } | |
| 955 static int bci_displacement_cell_index(uint row) { | |
| 956 return displacement0_offset + row * ret_row_cell_count; | |
| 957 } | |
| 958 | |
| 959 // Direct accessors | |
| 960 int bci(uint row) { | |
| 961 return int_at(bci_cell_index(row)); | |
| 962 } | |
| 963 uint bci_count(uint row) { | |
| 964 return uint_at(bci_count_cell_index(row)); | |
| 965 } | |
| 966 int bci_displacement(uint row) { | |
| 967 return int_at(bci_displacement_cell_index(row)); | |
| 968 } | |
| 969 | |
| 970 // Interpreter Runtime support | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
971 address fixup_ret(int return_bci, MethodData* mdo); |
| 0 | 972 |
| 973 // Code generation support | |
| 974 static ByteSize bci_offset(uint row) { | |
| 975 return cell_offset(bci_cell_index(row)); | |
| 976 } | |
| 977 static ByteSize bci_count_offset(uint row) { | |
| 978 return cell_offset(bci_count_cell_index(row)); | |
| 979 } | |
| 980 static ByteSize bci_displacement_offset(uint row) { | |
| 981 return cell_offset(bci_displacement_cell_index(row)); | |
| 982 } | |
| 983 | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
984 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
985 static DataLayout* advance(MethodData *md, int bci); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
986 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
987 |
| 0 | 988 // Specific initialization. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
989 void post_initialize(BytecodeStream* stream, MethodData* mdo); |
| 0 | 990 |
| 991 #ifndef PRODUCT | |
| 992 void print_data_on(outputStream* st); | |
| 993 #endif | |
| 994 }; | |
| 995 | |
| 996 // BranchData | |
| 997 // | |
| 998 // A BranchData is used to access profiling data for a two-way branch. | |
| 999 // It consists of taken and not_taken counts as well as a data displacement | |
| 1000 // for the taken case. | |
| 1001 class BranchData : public JumpData { | |
| 1002 protected: | |
| 1003 enum { | |
| 1004 not_taken_off_set = jump_cell_count, | |
| 1005 branch_cell_count | |
| 1006 }; | |
| 1007 | |
| 1008 void set_displacement(int displacement) { | |
| 1009 set_int_at(displacement_off_set, displacement); | |
| 1010 } | |
| 1011 | |
| 1012 public: | |
| 1013 BranchData(DataLayout* layout) : JumpData(layout) { | |
| 1014 assert(layout->tag() == DataLayout::branch_data_tag, "wrong type"); | |
| 1015 } | |
| 1016 | |
| 1017 virtual bool is_BranchData() { return true; } | |
| 1018 | |
| 1019 static int static_cell_count() { | |
| 1020 return branch_cell_count; | |
| 1021 } | |
| 1022 | |
| 1023 virtual int cell_count() { | |
| 1024 return static_cell_count(); | |
| 1025 } | |
| 1026 | |
| 1027 // Direct accessor | |
| 1028 uint not_taken() { | |
| 1029 return uint_at(not_taken_off_set); | |
| 1030 } | |
| 1031 | |
|
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
1032 void set_not_taken(uint cnt) { |
|
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
1033 set_uint_at(not_taken_off_set, cnt); |
|
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
1034 } |
|
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3345
diff
changeset
|
1035 |
| 0 | 1036 uint inc_not_taken() { |
| 1037 uint cnt = not_taken() + 1; | |
| 1038 // Did we wrap? Will compiler screw us?? | |
| 1039 if (cnt == 0) cnt--; | |
| 1040 set_uint_at(not_taken_off_set, cnt); | |
| 1041 return cnt; | |
| 1042 } | |
| 1043 | |
| 1044 // Code generation support | |
| 1045 static ByteSize not_taken_offset() { | |
| 1046 return cell_offset(not_taken_off_set); | |
| 1047 } | |
| 1048 static ByteSize branch_data_size() { | |
| 1049 return cell_offset(branch_cell_count); | |
| 1050 } | |
| 1051 | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1052 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1053 static int branch_data_size_in_bytes() { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1054 return cell_offset_in_bytes(branch_cell_count); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1055 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1056 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1057 static void increment_not_taken_count_no_overflow(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1058 increment_uint_at_no_overflow(layout, not_taken_off_set); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1059 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1060 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1061 static DataLayout* advance_not_taken(DataLayout* layout) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1062 return (DataLayout*) (((address)layout) + (ssize_t)BranchData::branch_data_size_in_bytes()); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1063 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1064 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1065 |
| 0 | 1066 // Specific initialization. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1067 void post_initialize(BytecodeStream* stream, MethodData* mdo); |
| 0 | 1068 |
| 1069 #ifndef PRODUCT | |
| 1070 void print_data_on(outputStream* st); | |
| 1071 #endif | |
| 1072 }; | |
| 1073 | |
| 1074 // ArrayData | |
| 1075 // | |
| 1076 // A ArrayData is a base class for accessing profiling data which does | |
| 1077 // not have a statically known size. It consists of an array length | |
| 1078 // and an array start. | |
| 1079 class ArrayData : public ProfileData { | |
| 1080 protected: | |
| 1081 friend class DataLayout; | |
| 1082 | |
| 1083 enum { | |
| 1084 array_len_off_set, | |
| 1085 array_start_off_set | |
| 1086 }; | |
| 1087 | |
| 1088 uint array_uint_at(int index) { | |
| 1089 int aindex = index + array_start_off_set; | |
| 1090 return uint_at(aindex); | |
| 1091 } | |
| 1092 int array_int_at(int index) { | |
| 1093 int aindex = index + array_start_off_set; | |
| 1094 return int_at(aindex); | |
| 1095 } | |
| 1096 oop array_oop_at(int index) { | |
| 1097 int aindex = index + array_start_off_set; | |
| 1098 return oop_at(aindex); | |
| 1099 } | |
| 1100 void array_set_int_at(int index, int value) { | |
| 1101 int aindex = index + array_start_off_set; | |
| 1102 set_int_at(aindex, value); | |
| 1103 } | |
| 1104 | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1105 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1106 // Static low level accessors for DataLayout with ArrayData's semantics. |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1107 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1108 static void increment_array_uint_at_no_overflow(DataLayout* layout, int index) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1109 int aindex = index + array_start_off_set; |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1110 increment_uint_at_no_overflow(layout, aindex); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1111 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1112 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1113 static int array_int_at(DataLayout* layout, int index) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1114 int aindex = index + array_start_off_set; |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1115 return int_at(layout, aindex); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1116 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1117 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1118 |
| 0 | 1119 // Code generation support for subclasses. |
| 1120 static ByteSize array_element_offset(int index) { | |
| 1121 return cell_offset(array_start_off_set + index); | |
| 1122 } | |
| 1123 | |
| 1124 public: | |
| 1125 ArrayData(DataLayout* layout) : ProfileData(layout) {} | |
| 1126 | |
| 1127 virtual bool is_ArrayData() { return true; } | |
| 1128 | |
| 1129 static int static_cell_count() { | |
| 1130 return -1; | |
| 1131 } | |
| 1132 | |
| 1133 int array_len() { | |
| 1134 return int_at_unchecked(array_len_off_set); | |
| 1135 } | |
| 1136 | |
| 1137 virtual int cell_count() { | |
| 1138 return array_len() + 1; | |
| 1139 } | |
| 1140 | |
| 1141 // Code generation support | |
| 1142 static ByteSize array_len_offset() { | |
| 1143 return cell_offset(array_len_off_set); | |
| 1144 } | |
| 1145 static ByteSize array_start_offset() { | |
| 1146 return cell_offset(array_start_off_set); | |
| 1147 } | |
| 1148 }; | |
| 1149 | |
| 1150 // MultiBranchData | |
| 1151 // | |
| 1152 // A MultiBranchData is used to access profiling information for | |
| 1153 // a multi-way branch (*switch bytecodes). It consists of a series | |
| 1154 // of (count, displacement) pairs, which count the number of times each | |
| 1155 // case was taken and specify the data displacment for each branch target. | |
| 1156 class MultiBranchData : public ArrayData { | |
| 1157 protected: | |
| 1158 enum { | |
| 1159 default_count_off_set, | |
| 1160 default_disaplacement_off_set, | |
| 1161 case_array_start | |
| 1162 }; | |
| 1163 enum { | |
| 1164 relative_count_off_set, | |
| 1165 relative_displacement_off_set, | |
| 1166 per_case_cell_count | |
| 1167 }; | |
| 1168 | |
| 1169 void set_default_displacement(int displacement) { | |
| 1170 array_set_int_at(default_disaplacement_off_set, displacement); | |
| 1171 } | |
| 1172 void set_displacement_at(int index, int displacement) { | |
| 1173 array_set_int_at(case_array_start + | |
| 1174 index * per_case_cell_count + | |
| 1175 relative_displacement_off_set, | |
| 1176 displacement); | |
| 1177 } | |
| 1178 | |
| 1179 public: | |
| 1180 MultiBranchData(DataLayout* layout) : ArrayData(layout) { | |
| 1181 assert(layout->tag() == DataLayout::multi_branch_data_tag, "wrong type"); | |
| 1182 } | |
| 1183 | |
| 1184 virtual bool is_MultiBranchData() { return true; } | |
| 1185 | |
| 1186 static int compute_cell_count(BytecodeStream* stream); | |
| 1187 | |
| 1188 int number_of_cases() { | |
| 1189 int alen = array_len() - 2; // get rid of default case here. | |
| 1190 assert(alen % per_case_cell_count == 0, "must be even"); | |
| 1191 return (alen / per_case_cell_count); | |
| 1192 } | |
| 1193 | |
| 1194 uint default_count() { | |
| 1195 return array_uint_at(default_count_off_set); | |
| 1196 } | |
| 1197 int default_displacement() { | |
| 1198 return array_int_at(default_disaplacement_off_set); | |
| 1199 } | |
| 1200 | |
| 1201 uint count_at(int index) { | |
| 1202 return array_uint_at(case_array_start + | |
| 1203 index * per_case_cell_count + | |
| 1204 relative_count_off_set); | |
| 1205 } | |
| 1206 int displacement_at(int index) { | |
| 1207 return array_int_at(case_array_start + | |
| 1208 index * per_case_cell_count + | |
| 1209 relative_displacement_off_set); | |
| 1210 } | |
| 1211 | |
| 1212 // Code generation support | |
| 1213 static ByteSize default_count_offset() { | |
| 1214 return array_element_offset(default_count_off_set); | |
| 1215 } | |
| 1216 static ByteSize default_displacement_offset() { | |
| 1217 return array_element_offset(default_disaplacement_off_set); | |
| 1218 } | |
| 1219 static ByteSize case_count_offset(int index) { | |
| 1220 return case_array_offset() + | |
| 1221 (per_case_size() * index) + | |
| 1222 relative_count_offset(); | |
| 1223 } | |
| 1224 static ByteSize case_array_offset() { | |
| 1225 return array_element_offset(case_array_start); | |
| 1226 } | |
| 1227 static ByteSize per_case_size() { | |
| 1228 return in_ByteSize(per_case_cell_count) * cell_size; | |
| 1229 } | |
| 1230 static ByteSize relative_count_offset() { | |
| 1231 return in_ByteSize(relative_count_off_set) * cell_size; | |
| 1232 } | |
| 1233 static ByteSize relative_displacement_offset() { | |
| 1234 return in_ByteSize(relative_displacement_off_set) * cell_size; | |
| 1235 } | |
| 1236 | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1237 #ifdef CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1238 static void increment_count_no_overflow(DataLayout* layout, int index) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1239 if (index == -1) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1240 increment_array_uint_at_no_overflow(layout, default_count_off_set); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1241 } else { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1242 increment_array_uint_at_no_overflow(layout, case_array_start + |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1243 index * per_case_cell_count + |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1244 relative_count_off_set); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1245 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1246 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1247 |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1248 static DataLayout* advance(DataLayout* layout, int index) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1249 if (index == -1) { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1250 return (DataLayout*) (((address)layout) + (ssize_t)array_int_at(layout, default_disaplacement_off_set)); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1251 } else { |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1252 return (DataLayout*) (((address)layout) + (ssize_t)array_int_at(layout, case_array_start + |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1253 index * per_case_cell_count + |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1254 relative_displacement_off_set)); |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1255 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1256 } |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1257 #endif // CC_INTERP |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1258 |
| 0 | 1259 // Specific initialization. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1260 void post_initialize(BytecodeStream* stream, MethodData* mdo); |
| 0 | 1261 |
| 1262 #ifndef PRODUCT | |
| 1263 void print_data_on(outputStream* st); | |
| 1264 #endif | |
| 1265 }; | |
| 1266 | |
|
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1267 class ArgInfoData : public ArrayData { |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1268 |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1269 public: |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1270 ArgInfoData(DataLayout* layout) : ArrayData(layout) { |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1271 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
|
1272 } |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1273 |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1274 virtual bool is_ArgInfoData() { return true; } |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1275 |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1276 |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1277 int number_of_args() { |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1278 return array_len(); |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1279 } |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1280 |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1281 uint arg_modified(int arg) { |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1282 return array_uint_at(arg); |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1283 } |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1284 |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1285 void set_arg_modified(int arg, uint val) { |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1286 array_set_int_at(arg, val); |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1287 } |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1288 |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1289 #ifndef PRODUCT |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1290 void print_data_on(outputStream* st); |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1291 #endif |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1292 }; |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1293 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1294 // MethodData* |
| 0 | 1295 // |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1296 // A MethodData* holds information which has been collected about |
| 0 | 1297 // a method. Its layout looks like this: |
| 1298 // | |
| 1299 // ----------------------------- | |
| 1300 // | header | | |
| 1301 // | klass | | |
| 1302 // ----------------------------- | |
| 1303 // | method | | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1304 // | size of the MethodData* | |
| 0 | 1305 // ----------------------------- |
| 1306 // | Data entries... | | |
| 1307 // | (variable size) | | |
| 1308 // | | | |
| 1309 // . . | |
| 1310 // . . | |
| 1311 // . . | |
| 1312 // | | | |
| 1313 // ----------------------------- | |
| 1314 // | |
| 1315 // The data entry area is a heterogeneous array of DataLayouts. Each | |
| 1316 // DataLayout in the array corresponds to a specific bytecode in the | |
| 1317 // method. The entries in the array are sorted by the corresponding | |
| 1318 // bytecode. Access to the data is via resource-allocated ProfileData, | |
| 1319 // which point to the underlying blocks of DataLayout structures. | |
| 1320 // | |
| 1321 // During interpretation, if profiling in enabled, the interpreter | |
| 1322 // maintains a method data pointer (mdp), which points at the entry | |
| 1323 // in the array corresponding to the current bci. In the course of | |
| 1324 // intepretation, when a bytecode is encountered that has profile data | |
| 1325 // associated with it, the entry pointed to by mdp is updated, then the | |
| 1326 // mdp is adjusted to point to the next appropriate DataLayout. If mdp | |
| 1327 // is NULL to begin with, the interpreter assumes that the current method | |
| 1328 // is not (yet) being profiled. | |
| 1329 // | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1330 // In MethodData* parlance, "dp" is a "data pointer", the actual address |
| 0 | 1331 // of a DataLayout element. A "di" is a "data index", the offset in bytes |
| 1332 // from the base of the data entry array. A "displacement" is the byte offset | |
| 1333 // in certain ProfileData objects that indicate the amount the mdp must be | |
| 1334 // adjusted in the event of a change in control flow. | |
| 1335 // | |
| 1336 | |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1337 CC_INTERP_ONLY(class BytecodeInterpreter;) |
|
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1338 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1339 class MethodData : public Metadata { |
| 0 | 1340 friend class VMStructs; |
|
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
10265
diff
changeset
|
1341 CC_INTERP_ONLY(friend class BytecodeInterpreter;) |
| 0 | 1342 private: |
| 1343 friend class ProfileData; | |
| 1344 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1345 // Back pointer to the Method* |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1346 Method* _method; |
| 0 | 1347 |
| 1348 // Size of this oop in bytes | |
| 1349 int _size; | |
| 1350 | |
| 1351 // Cached hint for bci_to_dp and bci_to_data | |
| 1352 int _hint_di; | |
| 1353 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1354 MethodData(methodHandle method, int size, TRAPS); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1355 public: |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1356 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
|
1357 MethodData() {}; // For ciMethodData |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1358 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1359 bool is_methodData() const volatile { return true; } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1360 |
| 0 | 1361 // Whole-method sticky bits and flags |
| 1362 enum { | |
| 3345 | 1363 _trap_hist_limit = 17, // decoupled from Deoptimization::Reason_LIMIT |
| 0 | 1364 _trap_hist_mask = max_jubyte, |
| 1365 _extra_data_count = 4 // extra DataLayout headers, for trap history | |
| 1366 }; // Public flag values | |
| 1367 private: | |
| 1368 uint _nof_decompiles; // count of all nmethod removals | |
| 1369 uint _nof_overflow_recompiles; // recompile count, excluding recomp. bits | |
| 1370 uint _nof_overflow_traps; // trap count, excluding _trap_hist | |
| 1371 union { | |
| 1372 intptr_t _align; | |
| 1373 u1 _array[_trap_hist_limit]; | |
| 1374 } _trap_hist; | |
| 1375 | |
| 1376 // Support for interprocedural escape analysis, from Thomas Kotzmann. | |
| 1377 intx _eflags; // flags on escape information | |
| 1378 intx _arg_local; // bit set of non-escaping arguments | |
| 1379 intx _arg_stack; // bit set of stack-allocatable arguments | |
| 1380 intx _arg_returned; // bit set of returned arguments | |
| 1381 | |
| 1783 | 1382 int _creation_mileage; // method mileage at MDO creation |
| 1383 | |
| 1384 // How many invocations has this MDO seen? | |
| 1385 // These counters are used to determine the exact age of MDO. | |
| 1386 // We need those because in tiered a method can be concurrently | |
| 1387 // executed at different levels. | |
| 1388 InvocationCounter _invocation_counter; | |
| 1389 // Same for backedges. | |
| 1390 InvocationCounter _backedge_counter; | |
| 2252 | 1391 // Counter values at the time profiling started. |
| 1392 int _invocation_counter_start; | |
| 1393 int _backedge_counter_start; | |
| 1783 | 1394 // Number of loops and blocks is computed when compiling the first |
| 1395 // time with C1. It is used to determine if method is trivial. | |
| 1396 short _num_loops; | |
| 1397 short _num_blocks; | |
| 1398 // Highest compile level this method has ever seen. | |
| 1399 u1 _highest_comp_level; | |
| 1400 // Same for OSR level | |
| 1401 u1 _highest_osr_comp_level; | |
| 1402 // Does this method contain anything worth profiling? | |
| 1403 bool _would_profile; | |
| 0 | 1404 |
| 1405 // Size of _data array in bytes. (Excludes header and extra_data fields.) | |
| 1406 int _data_size; | |
| 1407 | |
| 1408 // Beginning of the data entries | |
| 1409 intptr_t _data[1]; | |
| 1410 | |
| 1411 // Helper for size computation | |
| 1412 static int compute_data_size(BytecodeStream* stream); | |
| 1413 static int bytecode_cell_count(Bytecodes::Code code); | |
| 1414 enum { no_profile_data = -1, variable_cell_count = -2 }; | |
| 1415 | |
| 1416 // Helper for initialization | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1417 DataLayout* data_layout_at(int data_index) const { |
| 0 | 1418 assert(data_index % sizeof(intptr_t) == 0, "unaligned"); |
| 1419 return (DataLayout*) (((address)_data) + data_index); | |
| 1420 } | |
| 1421 | |
| 1422 // Initialize an individual data segment. Returns the size of | |
| 1423 // the segment in bytes. | |
| 1424 int initialize_data(BytecodeStream* stream, int data_index); | |
| 1425 | |
| 1426 // Helper for data_at | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1427 DataLayout* limit_data_position() const { |
| 0 | 1428 return (DataLayout*)((address)data_base() + _data_size); |
| 1429 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1430 bool out_of_bounds(int data_index) const { |
| 0 | 1431 return data_index >= data_size(); |
| 1432 } | |
| 1433 | |
| 1434 // Give each of the data entries a chance to perform specific | |
| 1435 // data initialization. | |
| 1436 void post_initialize(BytecodeStream* stream); | |
| 1437 | |
| 1438 // hint accessors | |
| 1439 int hint_di() const { return _hint_di; } | |
| 1440 void set_hint_di(int di) { | |
| 1441 assert(!out_of_bounds(di), "hint_di out of bounds"); | |
| 1442 _hint_di = di; | |
| 1443 } | |
| 1444 ProfileData* data_before(int bci) { | |
| 1445 // avoid SEGV on this edge case | |
| 1446 if (data_size() == 0) | |
| 1447 return NULL; | |
| 1448 int hint = hint_di(); | |
| 1449 if (data_layout_at(hint)->bci() <= bci) | |
| 1450 return data_at(hint); | |
| 1451 return first_data(); | |
| 1452 } | |
| 1453 | |
| 1454 // 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
|
1455 int first_di() const { return 0; } |
| 0 | 1456 |
| 1457 // Find or create an extra ProfileData: | |
| 1458 ProfileData* bci_to_extra_data(int bci, bool create_if_missing); | |
| 1459 | |
|
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1460 // return the argument info cell |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1461 ArgInfoData *arg_info(); |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1462 |
| 0 | 1463 public: |
| 1464 static int header_size() { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1465 return sizeof(MethodData)/wordSize; |
| 0 | 1466 } |
| 1467 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1468 // Compute the size of a MethodData* before it is created. |
| 0 | 1469 static int compute_allocation_size_in_bytes(methodHandle method); |
| 1470 static int compute_allocation_size_in_words(methodHandle method); | |
| 1471 static int compute_extra_data_count(int data_size, int empty_bc_count); | |
| 1472 | |
| 1473 // Determine if a given bytecode can have profile information. | |
| 1474 static bool bytecode_has_profile(Bytecodes::Code code) { | |
| 1475 return bytecode_cell_count(code) != no_profile_data; | |
| 1476 } | |
| 1477 | |
|
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8000
diff
changeset
|
1478 // reset into original state |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8000
diff
changeset
|
1479 void init(); |
| 0 | 1480 |
| 1481 // My size | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1482 int size_in_bytes() const { return _size; } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1483 int size() const { return align_object_size(align_size_up(_size, BytesPerWord)/BytesPerWord); } |
| 7956 | 1484 #if INCLUDE_SERVICES |
| 1485 void collect_statistics(KlassSizeStats *sz) const; | |
| 1486 #endif | |
| 0 | 1487 |
| 1488 int creation_mileage() const { return _creation_mileage; } | |
| 1489 void set_creation_mileage(int x) { _creation_mileage = x; } | |
| 1783 | 1490 |
| 1491 int invocation_count() { | |
| 1492 if (invocation_counter()->carry()) { | |
| 1493 return InvocationCounter::count_limit; | |
| 1494 } | |
| 1495 return invocation_counter()->count(); | |
| 1496 } | |
| 1497 int backedge_count() { | |
| 1498 if (backedge_counter()->carry()) { | |
| 1499 return InvocationCounter::count_limit; | |
| 1500 } | |
| 1501 return backedge_counter()->count(); | |
| 1502 } | |
| 1503 | |
| 2252 | 1504 int invocation_count_start() { |
| 1505 if (invocation_counter()->carry()) { | |
| 1506 return 0; | |
| 1507 } | |
| 1508 return _invocation_counter_start; | |
| 1509 } | |
| 1510 | |
| 1511 int backedge_count_start() { | |
| 1512 if (backedge_counter()->carry()) { | |
| 1513 return 0; | |
| 1514 } | |
| 1515 return _backedge_counter_start; | |
| 1516 } | |
| 1517 | |
| 1518 int invocation_count_delta() { return invocation_count() - invocation_count_start(); } | |
| 1519 int backedge_count_delta() { return backedge_count() - backedge_count_start(); } | |
| 1520 | |
| 1521 void reset_start_counters() { | |
| 1522 _invocation_counter_start = invocation_count(); | |
| 1523 _backedge_counter_start = backedge_count(); | |
| 1524 } | |
| 1525 | |
| 1783 | 1526 InvocationCounter* invocation_counter() { return &_invocation_counter; } |
| 1527 InvocationCounter* backedge_counter() { return &_backedge_counter; } | |
| 1528 | |
| 1529 void set_would_profile(bool p) { _would_profile = p; } | |
| 1530 bool would_profile() const { return _would_profile; } | |
| 1531 | |
|
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
9080
diff
changeset
|
1532 int highest_comp_level() const { return _highest_comp_level; } |
| 1783 | 1533 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
|
1534 int highest_osr_comp_level() const { return _highest_osr_comp_level; } |
| 1783 | 1535 void set_highest_osr_comp_level(int level) { _highest_osr_comp_level = level; } |
| 1536 | |
| 1537 int num_loops() const { return _num_loops; } | |
| 1538 void set_num_loops(int n) { _num_loops = n; } | |
| 1539 int num_blocks() const { return _num_blocks; } | |
| 1540 void set_num_blocks(int n) { _num_blocks = n; } | |
| 1541 | |
| 0 | 1542 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
|
1543 static int mileage_of(Method* m); |
| 0 | 1544 |
| 1545 // Support for interprocedural escape analysis, from Thomas Kotzmann. | |
| 1546 enum EscapeFlag { | |
| 1547 estimated = 1 << 0, | |
|
78
e1e86702e43e
6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents:
45
diff
changeset
|
1548 return_local = 1 << 1, |
|
e1e86702e43e
6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents:
45
diff
changeset
|
1549 return_allocated = 1 << 2, |
|
e1e86702e43e
6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents:
45
diff
changeset
|
1550 allocated_escapes = 1 << 3, |
|
e1e86702e43e
6680665: bytecode Escape Analyzer produces incorrect escape information for methods without oop arguments
kvn
parents:
45
diff
changeset
|
1551 unknown_modified = 1 << 4 |
| 0 | 1552 }; |
| 1553 | |
| 1554 intx eflags() { return _eflags; } | |
| 1555 intx arg_local() { return _arg_local; } | |
| 1556 intx arg_stack() { return _arg_stack; } | |
| 1557 intx arg_returned() { return _arg_returned; } | |
|
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1558 uint arg_modified(int a) { ArgInfoData *aid = arg_info(); |
|
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8000
diff
changeset
|
1559 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
|
1560 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
|
1561 return aid->arg_modified(a); } |
| 0 | 1562 |
| 1563 void set_eflags(intx v) { _eflags = v; } | |
| 1564 void set_arg_local(intx v) { _arg_local = v; } | |
| 1565 void set_arg_stack(intx v) { _arg_stack = v; } | |
| 1566 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
|
1567 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
|
1568 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
|
1569 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
|
1570 aid->set_arg_modified(a, v); } |
| 0 | 1571 |
| 1572 void clear_escape_info() { _eflags = _arg_local = _arg_stack = _arg_returned = 0; } | |
| 1573 | |
| 1574 // Location and size of data area | |
| 1575 address data_base() const { | |
| 1576 return (address) _data; | |
| 1577 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1578 int data_size() const { |
| 0 | 1579 return _data_size; |
| 1580 } | |
| 1581 | |
| 1582 // Accessors | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1583 Method* method() const { return _method; } |
| 0 | 1584 |
| 1585 // 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
|
1586 ProfileData* data_at(int data_index) const; |
| 0 | 1587 |
| 1588 // Walk through the data in order. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1589 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
|
1590 ProfileData* next_data(ProfileData* current) const; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1591 bool is_valid(ProfileData* current) const { return current != NULL; } |
| 0 | 1592 |
| 1593 // 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
|
1594 int dp_to_di(address dp) const { |
| 0 | 1595 return dp - ((address)_data); |
| 1596 } | |
| 1597 | |
| 1598 address di_to_dp(int di) { | |
| 1599 return (address)data_layout_at(di); | |
| 1600 } | |
| 1601 | |
| 1602 // bci to di/dp conversion. | |
| 1603 address bci_to_dp(int bci); | |
| 1604 int bci_to_di(int bci) { | |
| 1605 return dp_to_di(bci_to_dp(bci)); | |
| 1606 } | |
| 1607 | |
| 1608 // Get the data at an arbitrary bci, or NULL if there is none. | |
| 1609 ProfileData* bci_to_data(int bci); | |
| 1610 | |
| 1611 // Same, but try to create an extra_data record if one is needed: | |
| 1612 ProfileData* allocate_bci_to_data(int bci) { | |
| 1613 ProfileData* data = bci_to_data(bci); | |
| 1614 return (data != NULL) ? data : bci_to_extra_data(bci, true); | |
| 1615 } | |
| 1616 | |
| 1617 // 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
|
1618 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
|
1619 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
|
1620 int extra_data_size() const { return (address)extra_data_limit() |
| 0 | 1621 - (address)extra_data_base(); } |
| 1622 static DataLayout* next_extra(DataLayout* dp) { return (DataLayout*)((address)dp + in_bytes(DataLayout::cell_offset(0))); } | |
| 1623 | |
| 1624 // Return (uint)-1 for overflow. | |
| 1625 uint trap_count(int reason) const { | |
| 1626 assert((uint)reason < _trap_hist_limit, "oob"); | |
| 1627 return (int)((_trap_hist._array[reason]+1) & _trap_hist_mask) - 1; | |
| 1628 } | |
| 1629 // For loops: | |
| 1630 static uint trap_reason_limit() { return _trap_hist_limit; } | |
| 1631 static uint trap_count_limit() { return _trap_hist_mask; } | |
| 1632 uint inc_trap_count(int reason) { | |
| 1633 // Count another trap, anywhere in this method. | |
| 1634 assert(reason >= 0, "must be single trap"); | |
| 1635 if ((uint)reason < _trap_hist_limit) { | |
| 1636 uint cnt1 = 1 + _trap_hist._array[reason]; | |
| 1637 if ((cnt1 & _trap_hist_mask) != 0) { // if no counter overflow... | |
| 1638 _trap_hist._array[reason] = cnt1; | |
| 1639 return cnt1; | |
| 1640 } else { | |
| 1641 return _trap_hist_mask + (++_nof_overflow_traps); | |
| 1642 } | |
| 1643 } else { | |
| 1644 // Could not represent the count in the histogram. | |
| 1645 return (++_nof_overflow_traps); | |
| 1646 } | |
| 1647 } | |
| 1648 | |
| 1649 uint overflow_trap_count() const { | |
| 1650 return _nof_overflow_traps; | |
| 1651 } | |
| 1652 uint overflow_recompile_count() const { | |
| 1653 return _nof_overflow_recompiles; | |
| 1654 } | |
| 1655 void inc_overflow_recompile_count() { | |
| 1656 _nof_overflow_recompiles += 1; | |
| 1657 } | |
| 1658 uint decompile_count() const { | |
| 1659 return _nof_decompiles; | |
| 1660 } | |
| 1661 void inc_decompile_count() { | |
| 1662 _nof_decompiles += 1; | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
948
diff
changeset
|
1663 if (decompile_count() > (uint)PerMethodRecompilationCutoff) { |
| 7998 | 1664 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
|
1665 } |
| 0 | 1666 } |
| 1667 | |
| 1668 // Support for code generation | |
| 1669 static ByteSize data_offset() { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1670 return byte_offset_of(MethodData, _data[0]); |
| 0 | 1671 } |
| 1672 | |
| 1783 | 1673 static ByteSize invocation_counter_offset() { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1674 return byte_offset_of(MethodData, _invocation_counter); |
| 1783 | 1675 } |
| 1676 static ByteSize backedge_counter_offset() { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1677 return byte_offset_of(MethodData, _backedge_counter); |
| 1783 | 1678 } |
| 1679 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1680 // Deallocation support - no pointer fields to deallocate |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1681 void deallocate_contents(ClassLoaderData* loader_data) {} |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1682 |
| 0 | 1683 // GC support |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1684 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
|
1685 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1686 // Printing |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1687 #ifndef PRODUCT |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1688 void print_on (outputStream* st) const; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1689 #endif |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1690 void print_value_on(outputStream* st) const; |
| 0 | 1691 |
| 1692 #ifndef PRODUCT | |
| 1693 // printing support for method data | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1694 void print_data_on(outputStream* st) const; |
| 0 | 1695 #endif |
| 1696 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1697 const char* internal_name() const { return "{method data}"; } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1698 |
| 0 | 1699 // verification |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3905
diff
changeset
|
1700 void verify_on(outputStream* st); |
| 0 | 1701 void verify_data_on(outputStream* st); |
| 1702 }; | |
| 1972 | 1703 |
| 1704 #endif // SHARE_VM_OOPS_METHODDATAOOP_HPP |