Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1 | // Copyright 2006-2009 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
| 30 | #include "api.h" |
| 31 | #include "arguments.h" |
| 32 | #include "ic-inl.h" |
| 33 | #include "stub-cache.h" |
| 34 | |
| 35 | namespace v8 { |
| 36 | namespace internal { |
| 37 | |
| 38 | // ----------------------------------------------------------------------- |
| 39 | // StubCache implementation. |
| 40 | |
| 41 | |
| 42 | StubCache::Entry StubCache::primary_[StubCache::kPrimaryTableSize]; |
| 43 | StubCache::Entry StubCache::secondary_[StubCache::kSecondaryTableSize]; |
| 44 | |
| 45 | void StubCache::Initialize(bool create_heap_objects) { |
| 46 | ASSERT(IsPowerOf2(kPrimaryTableSize)); |
| 47 | ASSERT(IsPowerOf2(kSecondaryTableSize)); |
| 48 | if (create_heap_objects) { |
| 49 | HandleScope scope; |
| 50 | Clear(); |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | |
| 55 | Code* StubCache::Set(String* name, Map* map, Code* code) { |
| 56 | // Get the flags from the code. |
| 57 | Code::Flags flags = Code::RemoveTypeFromFlags(code->flags()); |
| 58 | |
| 59 | // Validate that the name does not move on scavenge, and that we |
| 60 | // can use identity checks instead of string equality checks. |
| 61 | ASSERT(!Heap::InNewSpace(name)); |
| 62 | ASSERT(name->IsSymbol()); |
| 63 | |
| 64 | // The state bits are not important to the hash function because |
| 65 | // the stub cache only contains monomorphic stubs. Make sure that |
| 66 | // the bits are the least significant so they will be the ones |
| 67 | // masked out. |
| 68 | ASSERT(Code::ExtractICStateFromFlags(flags) == MONOMORPHIC); |
| 69 | ASSERT(Code::kFlagsICStateShift == 0); |
| 70 | |
| 71 | // Make sure that the code type is not included in the hash. |
| 72 | ASSERT(Code::ExtractTypeFromFlags(flags) == 0); |
| 73 | |
| 74 | // Compute the primary entry. |
| 75 | int primary_offset = PrimaryOffset(name, flags, map); |
| 76 | Entry* primary = entry(primary_, primary_offset); |
| 77 | Code* hit = primary->value; |
| 78 | |
| 79 | // If the primary entry has useful data in it, we retire it to the |
| 80 | // secondary cache before overwriting it. |
| 81 | if (hit != Builtins::builtin(Builtins::Illegal)) { |
| 82 | Code::Flags primary_flags = Code::RemoveTypeFromFlags(hit->flags()); |
| 83 | int secondary_offset = |
| 84 | SecondaryOffset(primary->key, primary_flags, primary_offset); |
| 85 | Entry* secondary = entry(secondary_, secondary_offset); |
| 86 | *secondary = *primary; |
| 87 | } |
| 88 | |
| 89 | // Update primary cache. |
| 90 | primary->key = name; |
| 91 | primary->value = code; |
| 92 | return code; |
| 93 | } |
| 94 | |
| 95 | |
| 96 | Object* StubCache::ComputeLoadField(String* name, |
| 97 | JSObject* receiver, |
| 98 | JSObject* holder, |
| 99 | int field_index) { |
| 100 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::LOAD_IC, FIELD); |
| 101 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 102 | if (code->IsUndefined()) { |
| 103 | LoadStubCompiler compiler; |
| 104 | code = compiler.CompileLoadField(receiver, holder, field_index, name); |
| 105 | if (code->IsFailure()) return code; |
| 106 | LOG(CodeCreateEvent(Logger::LOAD_IC_TAG, Code::cast(code), name)); |
| 107 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 108 | if (result->IsFailure()) return code; |
| 109 | } |
| 110 | return Set(name, receiver->map(), Code::cast(code)); |
| 111 | } |
| 112 | |
| 113 | |
| 114 | Object* StubCache::ComputeLoadCallback(String* name, |
| 115 | JSObject* receiver, |
| 116 | JSObject* holder, |
| 117 | AccessorInfo* callback) { |
| 118 | ASSERT(v8::ToCData<Address>(callback->getter()) != 0); |
| 119 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::LOAD_IC, CALLBACKS); |
| 120 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 121 | if (code->IsUndefined()) { |
| 122 | LoadStubCompiler compiler; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 123 | code = compiler.CompileLoadCallback(name, receiver, holder, callback); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 124 | if (code->IsFailure()) return code; |
| 125 | LOG(CodeCreateEvent(Logger::LOAD_IC_TAG, Code::cast(code), name)); |
| 126 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 127 | if (result->IsFailure()) return code; |
| 128 | } |
| 129 | return Set(name, receiver->map(), Code::cast(code)); |
| 130 | } |
| 131 | |
| 132 | |
| 133 | Object* StubCache::ComputeLoadConstant(String* name, |
| 134 | JSObject* receiver, |
| 135 | JSObject* holder, |
| 136 | Object* value) { |
| 137 | Code::Flags flags = |
| 138 | Code::ComputeMonomorphicFlags(Code::LOAD_IC, CONSTANT_FUNCTION); |
| 139 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 140 | if (code->IsUndefined()) { |
| 141 | LoadStubCompiler compiler; |
| 142 | code = compiler.CompileLoadConstant(receiver, holder, value, name); |
| 143 | if (code->IsFailure()) return code; |
| 144 | LOG(CodeCreateEvent(Logger::LOAD_IC_TAG, Code::cast(code), name)); |
| 145 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 146 | if (result->IsFailure()) return code; |
| 147 | } |
| 148 | return Set(name, receiver->map(), Code::cast(code)); |
| 149 | } |
| 150 | |
| 151 | |
| 152 | Object* StubCache::ComputeLoadInterceptor(String* name, |
| 153 | JSObject* receiver, |
| 154 | JSObject* holder) { |
| 155 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::LOAD_IC, INTERCEPTOR); |
| 156 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 157 | if (code->IsUndefined()) { |
| 158 | LoadStubCompiler compiler; |
| 159 | code = compiler.CompileLoadInterceptor(receiver, holder, name); |
| 160 | if (code->IsFailure()) return code; |
| 161 | LOG(CodeCreateEvent(Logger::LOAD_IC_TAG, Code::cast(code), name)); |
| 162 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 163 | if (result->IsFailure()) return code; |
| 164 | } |
| 165 | return Set(name, receiver->map(), Code::cast(code)); |
| 166 | } |
| 167 | |
| 168 | |
| 169 | Object* StubCache::ComputeLoadNormal(String* name, JSObject* receiver) { |
| 170 | Code* code = Builtins::builtin(Builtins::LoadIC_Normal); |
| 171 | return Set(name, receiver->map(), code); |
| 172 | } |
| 173 | |
| 174 | |
| 175 | Object* StubCache::ComputeLoadGlobal(String* name, |
| 176 | JSObject* receiver, |
| 177 | GlobalObject* holder, |
| 178 | JSGlobalPropertyCell* cell, |
| 179 | bool is_dont_delete) { |
| 180 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::LOAD_IC, NORMAL); |
| 181 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 182 | if (code->IsUndefined()) { |
| 183 | LoadStubCompiler compiler; |
| 184 | code = compiler.CompileLoadGlobal(receiver, |
| 185 | holder, |
| 186 | cell, |
| 187 | name, |
| 188 | is_dont_delete); |
| 189 | if (code->IsFailure()) return code; |
| 190 | LOG(CodeCreateEvent(Logger::LOAD_IC_TAG, Code::cast(code), name)); |
| 191 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 192 | if (result->IsFailure()) return code; |
| 193 | } |
| 194 | return Set(name, receiver->map(), Code::cast(code)); |
| 195 | } |
| 196 | |
| 197 | |
| 198 | Object* StubCache::ComputeKeyedLoadField(String* name, |
| 199 | JSObject* receiver, |
| 200 | JSObject* holder, |
| 201 | int field_index) { |
| 202 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::KEYED_LOAD_IC, FIELD); |
| 203 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 204 | if (code->IsUndefined()) { |
| 205 | KeyedLoadStubCompiler compiler; |
| 206 | code = compiler.CompileLoadField(name, receiver, holder, field_index); |
| 207 | if (code->IsFailure()) return code; |
| 208 | LOG(CodeCreateEvent(Logger::KEYED_LOAD_IC_TAG, Code::cast(code), name)); |
| 209 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 210 | if (result->IsFailure()) return result; |
| 211 | } |
| 212 | return code; |
| 213 | } |
| 214 | |
| 215 | |
| 216 | Object* StubCache::ComputeKeyedLoadConstant(String* name, |
| 217 | JSObject* receiver, |
| 218 | JSObject* holder, |
| 219 | Object* value) { |
| 220 | Code::Flags flags = |
| 221 | Code::ComputeMonomorphicFlags(Code::KEYED_LOAD_IC, CONSTANT_FUNCTION); |
| 222 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 223 | if (code->IsUndefined()) { |
| 224 | KeyedLoadStubCompiler compiler; |
| 225 | code = compiler.CompileLoadConstant(name, receiver, holder, value); |
| 226 | if (code->IsFailure()) return code; |
| 227 | LOG(CodeCreateEvent(Logger::KEYED_LOAD_IC_TAG, Code::cast(code), name)); |
| 228 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 229 | if (result->IsFailure()) return result; |
| 230 | } |
| 231 | return code; |
| 232 | } |
| 233 | |
| 234 | |
| 235 | Object* StubCache::ComputeKeyedLoadInterceptor(String* name, |
| 236 | JSObject* receiver, |
| 237 | JSObject* holder) { |
| 238 | Code::Flags flags = |
| 239 | Code::ComputeMonomorphicFlags(Code::KEYED_LOAD_IC, INTERCEPTOR); |
| 240 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 241 | if (code->IsUndefined()) { |
| 242 | KeyedLoadStubCompiler compiler; |
| 243 | code = compiler.CompileLoadInterceptor(receiver, holder, name); |
| 244 | if (code->IsFailure()) return code; |
| 245 | LOG(CodeCreateEvent(Logger::KEYED_LOAD_IC_TAG, Code::cast(code), name)); |
| 246 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 247 | if (result->IsFailure()) return result; |
| 248 | } |
| 249 | return code; |
| 250 | } |
| 251 | |
| 252 | |
| 253 | Object* StubCache::ComputeKeyedLoadCallback(String* name, |
| 254 | JSObject* receiver, |
| 255 | JSObject* holder, |
| 256 | AccessorInfo* callback) { |
| 257 | Code::Flags flags = |
| 258 | Code::ComputeMonomorphicFlags(Code::KEYED_LOAD_IC, CALLBACKS); |
| 259 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 260 | if (code->IsUndefined()) { |
| 261 | KeyedLoadStubCompiler compiler; |
| 262 | code = compiler.CompileLoadCallback(name, receiver, holder, callback); |
| 263 | if (code->IsFailure()) return code; |
| 264 | LOG(CodeCreateEvent(Logger::KEYED_LOAD_IC_TAG, Code::cast(code), name)); |
| 265 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 266 | if (result->IsFailure()) return result; |
| 267 | } |
| 268 | return code; |
| 269 | } |
| 270 | |
| 271 | |
| 272 | |
| 273 | Object* StubCache::ComputeKeyedLoadArrayLength(String* name, |
| 274 | JSArray* receiver) { |
| 275 | Code::Flags flags = |
| 276 | Code::ComputeMonomorphicFlags(Code::KEYED_LOAD_IC, CALLBACKS); |
| 277 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 278 | if (code->IsUndefined()) { |
| 279 | KeyedLoadStubCompiler compiler; |
| 280 | code = compiler.CompileLoadArrayLength(name); |
| 281 | if (code->IsFailure()) return code; |
| 282 | LOG(CodeCreateEvent(Logger::KEYED_LOAD_IC_TAG, Code::cast(code), name)); |
| 283 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 284 | if (result->IsFailure()) return result; |
| 285 | } |
| 286 | return code; |
| 287 | } |
| 288 | |
| 289 | |
| 290 | Object* StubCache::ComputeKeyedLoadStringLength(String* name, |
| 291 | String* receiver) { |
| 292 | Code::Flags flags = |
| 293 | Code::ComputeMonomorphicFlags(Code::KEYED_LOAD_IC, CALLBACKS); |
| 294 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 295 | if (code->IsUndefined()) { |
| 296 | KeyedLoadStubCompiler compiler; |
| 297 | code = compiler.CompileLoadStringLength(name); |
| 298 | if (code->IsFailure()) return code; |
| 299 | LOG(CodeCreateEvent(Logger::KEYED_LOAD_IC_TAG, Code::cast(code), name)); |
| 300 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 301 | if (result->IsFailure()) return result; |
| 302 | } |
| 303 | return code; |
| 304 | } |
| 305 | |
| 306 | |
| 307 | Object* StubCache::ComputeKeyedLoadFunctionPrototype(String* name, |
| 308 | JSFunction* receiver) { |
| 309 | Code::Flags flags = |
| 310 | Code::ComputeMonomorphicFlags(Code::KEYED_LOAD_IC, CALLBACKS); |
| 311 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 312 | if (code->IsUndefined()) { |
| 313 | KeyedLoadStubCompiler compiler; |
| 314 | code = compiler.CompileLoadFunctionPrototype(name); |
| 315 | if (code->IsFailure()) return code; |
| 316 | LOG(CodeCreateEvent(Logger::KEYED_LOAD_IC_TAG, Code::cast(code), name)); |
| 317 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 318 | if (result->IsFailure()) return result; |
| 319 | } |
| 320 | return code; |
| 321 | } |
| 322 | |
| 323 | |
| 324 | Object* StubCache::ComputeStoreField(String* name, |
| 325 | JSObject* receiver, |
| 326 | int field_index, |
| 327 | Map* transition) { |
| 328 | PropertyType type = (transition == NULL) ? FIELD : MAP_TRANSITION; |
| 329 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::STORE_IC, type); |
| 330 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 331 | if (code->IsUndefined()) { |
| 332 | StoreStubCompiler compiler; |
| 333 | code = compiler.CompileStoreField(receiver, field_index, transition, name); |
| 334 | if (code->IsFailure()) return code; |
| 335 | LOG(CodeCreateEvent(Logger::STORE_IC_TAG, Code::cast(code), name)); |
| 336 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 337 | if (result->IsFailure()) return result; |
| 338 | } |
| 339 | return Set(name, receiver->map(), Code::cast(code)); |
| 340 | } |
| 341 | |
| 342 | |
| 343 | Object* StubCache::ComputeStoreGlobal(String* name, |
| 344 | GlobalObject* receiver, |
| 345 | JSGlobalPropertyCell* cell) { |
| 346 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::STORE_IC, NORMAL); |
| 347 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 348 | if (code->IsUndefined()) { |
| 349 | StoreStubCompiler compiler; |
| 350 | code = compiler.CompileStoreGlobal(receiver, cell, name); |
| 351 | if (code->IsFailure()) return code; |
| 352 | LOG(CodeCreateEvent(Logger::LOAD_IC_TAG, Code::cast(code), name)); |
| 353 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 354 | if (result->IsFailure()) return code; |
| 355 | } |
| 356 | return Set(name, receiver->map(), Code::cast(code)); |
| 357 | } |
| 358 | |
| 359 | |
| 360 | Object* StubCache::ComputeStoreCallback(String* name, |
| 361 | JSObject* receiver, |
| 362 | AccessorInfo* callback) { |
| 363 | ASSERT(v8::ToCData<Address>(callback->setter()) != 0); |
| 364 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::STORE_IC, CALLBACKS); |
| 365 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 366 | if (code->IsUndefined()) { |
| 367 | StoreStubCompiler compiler; |
| 368 | code = compiler.CompileStoreCallback(receiver, callback, name); |
| 369 | if (code->IsFailure()) return code; |
| 370 | LOG(CodeCreateEvent(Logger::STORE_IC_TAG, Code::cast(code), name)); |
| 371 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 372 | if (result->IsFailure()) return result; |
| 373 | } |
| 374 | return Set(name, receiver->map(), Code::cast(code)); |
| 375 | } |
| 376 | |
| 377 | |
| 378 | Object* StubCache::ComputeStoreInterceptor(String* name, |
| 379 | JSObject* receiver) { |
| 380 | Code::Flags flags = |
| 381 | Code::ComputeMonomorphicFlags(Code::STORE_IC, INTERCEPTOR); |
| 382 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 383 | if (code->IsUndefined()) { |
| 384 | StoreStubCompiler compiler; |
| 385 | code = compiler.CompileStoreInterceptor(receiver, name); |
| 386 | if (code->IsFailure()) return code; |
| 387 | LOG(CodeCreateEvent(Logger::STORE_IC_TAG, Code::cast(code), name)); |
| 388 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 389 | if (result->IsFailure()) return result; |
| 390 | } |
| 391 | return Set(name, receiver->map(), Code::cast(code)); |
| 392 | } |
| 393 | |
| 394 | |
| 395 | Object* StubCache::ComputeKeyedStoreField(String* name, JSObject* receiver, |
| 396 | int field_index, Map* transition) { |
| 397 | PropertyType type = (transition == NULL) ? FIELD : MAP_TRANSITION; |
| 398 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::KEYED_STORE_IC, type); |
| 399 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 400 | if (code->IsUndefined()) { |
| 401 | KeyedStoreStubCompiler compiler; |
| 402 | code = compiler.CompileStoreField(receiver, field_index, transition, name); |
| 403 | if (code->IsFailure()) return code; |
| 404 | LOG(CodeCreateEvent(Logger::KEYED_STORE_IC_TAG, Code::cast(code), name)); |
| 405 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 406 | if (result->IsFailure()) return result; |
| 407 | } |
| 408 | return code; |
| 409 | } |
| 410 | |
| 411 | |
| 412 | Object* StubCache::ComputeCallConstant(int argc, |
| 413 | InLoopFlag in_loop, |
| 414 | String* name, |
| 415 | Object* object, |
| 416 | JSObject* holder, |
| 417 | JSFunction* function) { |
| 418 | // Compute the check type and the map. |
| 419 | Map* map = IC::GetCodeCacheMapForObject(object); |
| 420 | |
| 421 | // Compute check type based on receiver/holder. |
| 422 | StubCompiler::CheckType check = StubCompiler::RECEIVER_MAP_CHECK; |
| 423 | if (object->IsString()) { |
| 424 | check = StubCompiler::STRING_CHECK; |
| 425 | } else if (object->IsNumber()) { |
| 426 | check = StubCompiler::NUMBER_CHECK; |
| 427 | } else if (object->IsBoolean()) { |
| 428 | check = StubCompiler::BOOLEAN_CHECK; |
| 429 | } |
| 430 | |
| 431 | Code::Flags flags = |
| 432 | Code::ComputeMonomorphicFlags(Code::CALL_IC, |
| 433 | CONSTANT_FUNCTION, |
| 434 | in_loop, |
| 435 | argc); |
| 436 | Object* code = map->FindInCodeCache(name, flags); |
| 437 | if (code->IsUndefined()) { |
| 438 | if (object->IsJSObject()) { |
| 439 | Object* opt = |
| 440 | Top::LookupSpecialFunction(JSObject::cast(object), holder, function); |
| 441 | if (opt->IsJSFunction()) { |
| 442 | check = StubCompiler::JSARRAY_HAS_FAST_ELEMENTS_CHECK; |
| 443 | function = JSFunction::cast(opt); |
| 444 | } |
| 445 | } |
| 446 | // If the function hasn't been compiled yet, we cannot do it now |
| 447 | // because it may cause GC. To avoid this issue, we return an |
| 448 | // internal error which will make sure we do not update any |
| 449 | // caches. |
| 450 | if (!function->is_compiled()) return Failure::InternalError(); |
| 451 | // Compile the stub - only create stubs for fully compiled functions. |
| 452 | CallStubCompiler compiler(argc, in_loop); |
| 453 | code = compiler.CompileCallConstant(object, holder, function, name, check); |
| 454 | if (code->IsFailure()) return code; |
| 455 | ASSERT_EQ(flags, Code::cast(code)->flags()); |
| 456 | LOG(CodeCreateEvent(Logger::CALL_IC_TAG, Code::cast(code), name)); |
| 457 | Object* result = map->UpdateCodeCache(name, Code::cast(code)); |
| 458 | if (result->IsFailure()) return result; |
| 459 | } |
| 460 | return Set(name, map, Code::cast(code)); |
| 461 | } |
| 462 | |
| 463 | |
| 464 | Object* StubCache::ComputeCallField(int argc, |
| 465 | InLoopFlag in_loop, |
| 466 | String* name, |
| 467 | Object* object, |
| 468 | JSObject* holder, |
| 469 | int index) { |
| 470 | // Compute the check type and the map. |
| 471 | Map* map = IC::GetCodeCacheMapForObject(object); |
| 472 | |
| 473 | // TODO(1233596): We cannot do receiver map check for non-JS objects |
| 474 | // because they may be represented as immediates without a |
| 475 | // map. Instead, we check against the map in the holder. |
| 476 | if (object->IsNumber() || object->IsBoolean() || object->IsString()) { |
| 477 | object = holder; |
| 478 | } |
| 479 | |
| 480 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::CALL_IC, |
| 481 | FIELD, |
| 482 | in_loop, |
| 483 | argc); |
| 484 | Object* code = map->FindInCodeCache(name, flags); |
| 485 | if (code->IsUndefined()) { |
| 486 | CallStubCompiler compiler(argc, in_loop); |
| 487 | code = compiler.CompileCallField(object, holder, index, name); |
| 488 | if (code->IsFailure()) return code; |
| 489 | ASSERT_EQ(flags, Code::cast(code)->flags()); |
| 490 | LOG(CodeCreateEvent(Logger::CALL_IC_TAG, Code::cast(code), name)); |
| 491 | Object* result = map->UpdateCodeCache(name, Code::cast(code)); |
| 492 | if (result->IsFailure()) return result; |
| 493 | } |
| 494 | return Set(name, map, Code::cast(code)); |
| 495 | } |
| 496 | |
| 497 | |
| 498 | Object* StubCache::ComputeCallInterceptor(int argc, |
| 499 | String* name, |
| 500 | Object* object, |
| 501 | JSObject* holder) { |
| 502 | // Compute the check type and the map. |
| 503 | // If the object is a value, we use the prototype map for the cache. |
| 504 | Map* map = IC::GetCodeCacheMapForObject(object); |
| 505 | |
| 506 | // TODO(1233596): We cannot do receiver map check for non-JS objects |
| 507 | // because they may be represented as immediates without a |
| 508 | // map. Instead, we check against the map in the holder. |
| 509 | if (object->IsNumber() || object->IsBoolean() || object->IsString()) { |
| 510 | object = holder; |
| 511 | } |
| 512 | |
| 513 | Code::Flags flags = |
| 514 | Code::ComputeMonomorphicFlags(Code::CALL_IC, |
| 515 | INTERCEPTOR, |
| 516 | NOT_IN_LOOP, |
| 517 | argc); |
| 518 | Object* code = map->FindInCodeCache(name, flags); |
| 519 | if (code->IsUndefined()) { |
| 520 | CallStubCompiler compiler(argc, NOT_IN_LOOP); |
| 521 | code = compiler.CompileCallInterceptor(object, holder, name); |
| 522 | if (code->IsFailure()) return code; |
| 523 | ASSERT_EQ(flags, Code::cast(code)->flags()); |
| 524 | LOG(CodeCreateEvent(Logger::CALL_IC_TAG, Code::cast(code), name)); |
| 525 | Object* result = map->UpdateCodeCache(name, Code::cast(code)); |
| 526 | if (result->IsFailure()) return result; |
| 527 | } |
| 528 | return Set(name, map, Code::cast(code)); |
| 529 | } |
| 530 | |
| 531 | |
| 532 | Object* StubCache::ComputeCallNormal(int argc, |
| 533 | InLoopFlag in_loop, |
| 534 | String* name, |
| 535 | JSObject* receiver) { |
| 536 | Object* code = ComputeCallNormal(argc, in_loop); |
| 537 | if (code->IsFailure()) return code; |
| 538 | return Set(name, receiver->map(), Code::cast(code)); |
| 539 | } |
| 540 | |
| 541 | |
| 542 | Object* StubCache::ComputeCallGlobal(int argc, |
| 543 | InLoopFlag in_loop, |
| 544 | String* name, |
| 545 | JSObject* receiver, |
| 546 | GlobalObject* holder, |
| 547 | JSGlobalPropertyCell* cell, |
| 548 | JSFunction* function) { |
| 549 | Code::Flags flags = |
| 550 | Code::ComputeMonomorphicFlags(Code::CALL_IC, NORMAL, in_loop, argc); |
| 551 | Object* code = receiver->map()->FindInCodeCache(name, flags); |
| 552 | if (code->IsUndefined()) { |
| 553 | // If the function hasn't been compiled yet, we cannot do it now |
| 554 | // because it may cause GC. To avoid this issue, we return an |
| 555 | // internal error which will make sure we do not update any |
| 556 | // caches. |
| 557 | if (!function->is_compiled()) return Failure::InternalError(); |
| 558 | CallStubCompiler compiler(argc, in_loop); |
| 559 | code = compiler.CompileCallGlobal(receiver, holder, cell, function, name); |
| 560 | if (code->IsFailure()) return code; |
| 561 | ASSERT_EQ(flags, Code::cast(code)->flags()); |
| 562 | LOG(CodeCreateEvent(Logger::CALL_IC_TAG, Code::cast(code), name)); |
| 563 | Object* result = receiver->map()->UpdateCodeCache(name, Code::cast(code)); |
| 564 | if (result->IsFailure()) return code; |
| 565 | } |
| 566 | return Set(name, receiver->map(), Code::cast(code)); |
| 567 | } |
| 568 | |
| 569 | |
| 570 | static Object* GetProbeValue(Code::Flags flags) { |
| 571 | // Use raw_unchecked... so we don't get assert failures during GC. |
| 572 | NumberDictionary* dictionary = Heap::raw_unchecked_non_monomorphic_cache(); |
| 573 | int entry = dictionary->FindEntry(flags); |
| 574 | if (entry != -1) return dictionary->ValueAt(entry); |
| 575 | return Heap::raw_unchecked_undefined_value(); |
| 576 | } |
| 577 | |
| 578 | |
| 579 | static Object* ProbeCache(Code::Flags flags) { |
| 580 | Object* probe = GetProbeValue(flags); |
| 581 | if (probe != Heap::undefined_value()) return probe; |
| 582 | // Seed the cache with an undefined value to make sure that any |
| 583 | // generated code object can always be inserted into the cache |
| 584 | // without causing allocation failures. |
| 585 | Object* result = |
| 586 | Heap::non_monomorphic_cache()->AtNumberPut(flags, |
| 587 | Heap::undefined_value()); |
| 588 | if (result->IsFailure()) return result; |
| 589 | Heap::public_set_non_monomorphic_cache(NumberDictionary::cast(result)); |
| 590 | return probe; |
| 591 | } |
| 592 | |
| 593 | |
| 594 | static Object* FillCache(Object* code) { |
| 595 | if (code->IsCode()) { |
| 596 | int entry = |
| 597 | Heap::non_monomorphic_cache()->FindEntry( |
| 598 | Code::cast(code)->flags()); |
| 599 | // The entry must be present see comment in ProbeCache. |
| 600 | ASSERT(entry != -1); |
| 601 | ASSERT(Heap::non_monomorphic_cache()->ValueAt(entry) == |
| 602 | Heap::undefined_value()); |
| 603 | Heap::non_monomorphic_cache()->ValueAtPut(entry, code); |
| 604 | CHECK(GetProbeValue(Code::cast(code)->flags()) == code); |
| 605 | } |
| 606 | return code; |
| 607 | } |
| 608 | |
| 609 | |
| 610 | Code* StubCache::FindCallInitialize(int argc, InLoopFlag in_loop) { |
| 611 | Code::Flags flags = |
| 612 | Code::ComputeFlags(Code::CALL_IC, in_loop, UNINITIALIZED, NORMAL, argc); |
| 613 | Object* result = ProbeCache(flags); |
| 614 | ASSERT(!result->IsUndefined()); |
| 615 | // This might be called during the marking phase of the collector |
| 616 | // hence the unchecked cast. |
| 617 | return reinterpret_cast<Code*>(result); |
| 618 | } |
| 619 | |
| 620 | |
| 621 | Object* StubCache::ComputeCallInitialize(int argc, InLoopFlag in_loop) { |
| 622 | Code::Flags flags = |
| 623 | Code::ComputeFlags(Code::CALL_IC, in_loop, UNINITIALIZED, NORMAL, argc); |
| 624 | Object* probe = ProbeCache(flags); |
| 625 | if (!probe->IsUndefined()) return probe; |
| 626 | StubCompiler compiler; |
| 627 | return FillCache(compiler.CompileCallInitialize(flags)); |
| 628 | } |
| 629 | |
| 630 | |
| 631 | Object* StubCache::ComputeCallPreMonomorphic(int argc, InLoopFlag in_loop) { |
| 632 | Code::Flags flags = |
| 633 | Code::ComputeFlags(Code::CALL_IC, in_loop, PREMONOMORPHIC, NORMAL, argc); |
| 634 | Object* probe = ProbeCache(flags); |
| 635 | if (!probe->IsUndefined()) return probe; |
| 636 | StubCompiler compiler; |
| 637 | return FillCache(compiler.CompileCallPreMonomorphic(flags)); |
| 638 | } |
| 639 | |
| 640 | |
| 641 | Object* StubCache::ComputeCallNormal(int argc, InLoopFlag in_loop) { |
| 642 | Code::Flags flags = |
| 643 | Code::ComputeFlags(Code::CALL_IC, in_loop, MONOMORPHIC, NORMAL, argc); |
| 644 | Object* probe = ProbeCache(flags); |
| 645 | if (!probe->IsUndefined()) return probe; |
| 646 | StubCompiler compiler; |
| 647 | return FillCache(compiler.CompileCallNormal(flags)); |
| 648 | } |
| 649 | |
| 650 | |
| 651 | Object* StubCache::ComputeCallMegamorphic(int argc, InLoopFlag in_loop) { |
| 652 | Code::Flags flags = |
| 653 | Code::ComputeFlags(Code::CALL_IC, in_loop, MEGAMORPHIC, NORMAL, argc); |
| 654 | Object* probe = ProbeCache(flags); |
| 655 | if (!probe->IsUndefined()) return probe; |
| 656 | StubCompiler compiler; |
| 657 | return FillCache(compiler.CompileCallMegamorphic(flags)); |
| 658 | } |
| 659 | |
| 660 | |
| 661 | Object* StubCache::ComputeCallMiss(int argc) { |
| 662 | Code::Flags flags = |
| 663 | Code::ComputeFlags(Code::STUB, NOT_IN_LOOP, MEGAMORPHIC, NORMAL, argc); |
| 664 | Object* probe = ProbeCache(flags); |
| 665 | if (!probe->IsUndefined()) return probe; |
| 666 | StubCompiler compiler; |
| 667 | return FillCache(compiler.CompileCallMiss(flags)); |
| 668 | } |
| 669 | |
| 670 | |
| 671 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 672 | Object* StubCache::ComputeCallDebugBreak(int argc) { |
| 673 | Code::Flags flags = |
| 674 | Code::ComputeFlags(Code::CALL_IC, NOT_IN_LOOP, DEBUG_BREAK, NORMAL, argc); |
| 675 | Object* probe = ProbeCache(flags); |
| 676 | if (!probe->IsUndefined()) return probe; |
| 677 | StubCompiler compiler; |
| 678 | return FillCache(compiler.CompileCallDebugBreak(flags)); |
| 679 | } |
| 680 | |
| 681 | |
| 682 | Object* StubCache::ComputeCallDebugPrepareStepIn(int argc) { |
| 683 | Code::Flags flags = |
| 684 | Code::ComputeFlags(Code::CALL_IC, |
| 685 | NOT_IN_LOOP, |
| 686 | DEBUG_PREPARE_STEP_IN, |
| 687 | NORMAL, |
| 688 | argc); |
| 689 | Object* probe = ProbeCache(flags); |
| 690 | if (!probe->IsUndefined()) return probe; |
| 691 | StubCompiler compiler; |
| 692 | return FillCache(compiler.CompileCallDebugPrepareStepIn(flags)); |
| 693 | } |
| 694 | #endif |
| 695 | |
| 696 | |
| 697 | Object* StubCache::ComputeLazyCompile(int argc) { |
| 698 | Code::Flags flags = |
| 699 | Code::ComputeFlags(Code::STUB, NOT_IN_LOOP, UNINITIALIZED, NORMAL, argc); |
| 700 | Object* probe = ProbeCache(flags); |
| 701 | if (!probe->IsUndefined()) return probe; |
| 702 | StubCompiler compiler; |
| 703 | Object* result = FillCache(compiler.CompileLazyCompile(flags)); |
| 704 | if (result->IsCode()) { |
| 705 | Code* code = Code::cast(result); |
| 706 | USE(code); |
| 707 | LOG(CodeCreateEvent(Logger::LAZY_COMPILE_TAG, |
| 708 | code, code->arguments_count())); |
| 709 | } |
| 710 | return result; |
| 711 | } |
| 712 | |
| 713 | |
| 714 | void StubCache::Clear() { |
| 715 | for (int i = 0; i < kPrimaryTableSize; i++) { |
| 716 | primary_[i].key = Heap::empty_string(); |
| 717 | primary_[i].value = Builtins::builtin(Builtins::Illegal); |
| 718 | } |
| 719 | for (int j = 0; j < kSecondaryTableSize; j++) { |
| 720 | secondary_[j].key = Heap::empty_string(); |
| 721 | secondary_[j].value = Builtins::builtin(Builtins::Illegal); |
| 722 | } |
| 723 | } |
| 724 | |
| 725 | |
| 726 | // ------------------------------------------------------------------------ |
| 727 | // StubCompiler implementation. |
| 728 | |
| 729 | |
| 730 | // Support function for computing call IC miss stubs. |
| 731 | Handle<Code> ComputeCallMiss(int argc) { |
| 732 | CALL_HEAP_FUNCTION(StubCache::ComputeCallMiss(argc), Code); |
| 733 | } |
| 734 | |
| 735 | |
| 736 | |
| 737 | Object* LoadCallbackProperty(Arguments args) { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 738 | ASSERT(args[0]->IsJSObject()); |
| 739 | ASSERT(args[1]->IsJSObject()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 740 | AccessorInfo* callback = AccessorInfo::cast(args[2]); |
| 741 | Address getter_address = v8::ToCData<Address>(callback->getter()); |
| 742 | v8::AccessorGetter fun = FUNCTION_CAST<v8::AccessorGetter>(getter_address); |
| 743 | ASSERT(fun != NULL); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 744 | CustomArguments custom_args(callback->data(), |
| 745 | JSObject::cast(args[0]), |
| 746 | JSObject::cast(args[1])); |
| 747 | v8::AccessorInfo info(custom_args.end()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 748 | HandleScope scope; |
| 749 | v8::Handle<v8::Value> result; |
| 750 | { |
| 751 | // Leaving JavaScript. |
| 752 | VMState state(EXTERNAL); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 753 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 754 | state.set_external_callback(getter_address); |
| 755 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 756 | result = fun(v8::Utils::ToLocal(args.at<String>(4)), info); |
| 757 | } |
| 758 | RETURN_IF_SCHEDULED_EXCEPTION(); |
| 759 | if (result.IsEmpty()) return Heap::undefined_value(); |
| 760 | return *v8::Utils::OpenHandle(*result); |
| 761 | } |
| 762 | |
| 763 | |
| 764 | Object* StoreCallbackProperty(Arguments args) { |
| 765 | JSObject* recv = JSObject::cast(args[0]); |
| 766 | AccessorInfo* callback = AccessorInfo::cast(args[1]); |
| 767 | Address setter_address = v8::ToCData<Address>(callback->setter()); |
| 768 | v8::AccessorSetter fun = FUNCTION_CAST<v8::AccessorSetter>(setter_address); |
| 769 | ASSERT(fun != NULL); |
| 770 | Handle<String> name = args.at<String>(2); |
| 771 | Handle<Object> value = args.at<Object>(3); |
| 772 | HandleScope scope; |
| 773 | LOG(ApiNamedPropertyAccess("store", recv, *name)); |
| 774 | CustomArguments custom_args(callback->data(), recv, recv); |
| 775 | v8::AccessorInfo info(custom_args.end()); |
| 776 | { |
| 777 | // Leaving JavaScript. |
| 778 | VMState state(EXTERNAL); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 779 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 780 | state.set_external_callback(setter_address); |
| 781 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 782 | fun(v8::Utils::ToLocal(name), v8::Utils::ToLocal(value), info); |
| 783 | } |
| 784 | RETURN_IF_SCHEDULED_EXCEPTION(); |
| 785 | return *value; |
| 786 | } |
| 787 | |
| 788 | /** |
| 789 | * Attempts to load a property with an interceptor (which must be present), |
| 790 | * but doesn't search the prototype chain. |
| 791 | * |
| 792 | * Returns |Heap::no_interceptor_result_sentinel()| if interceptor doesn't |
| 793 | * provide any value for the given name. |
| 794 | */ |
| 795 | Object* LoadPropertyWithInterceptorOnly(Arguments args) { |
| 796 | JSObject* receiver_handle = JSObject::cast(args[0]); |
| 797 | JSObject* holder_handle = JSObject::cast(args[1]); |
| 798 | Handle<String> name_handle = args.at<String>(2); |
| 799 | Handle<InterceptorInfo> interceptor_info = args.at<InterceptorInfo>(3); |
| 800 | Object* data_handle = args[4]; |
| 801 | |
| 802 | Address getter_address = v8::ToCData<Address>(interceptor_info->getter()); |
| 803 | v8::NamedPropertyGetter getter = |
| 804 | FUNCTION_CAST<v8::NamedPropertyGetter>(getter_address); |
| 805 | ASSERT(getter != NULL); |
| 806 | |
| 807 | { |
| 808 | // Use the interceptor getter. |
| 809 | CustomArguments args(data_handle, receiver_handle, holder_handle); |
| 810 | v8::AccessorInfo info(args.end()); |
| 811 | HandleScope scope; |
| 812 | v8::Handle<v8::Value> r; |
| 813 | { |
| 814 | // Leaving JavaScript. |
| 815 | VMState state(EXTERNAL); |
| 816 | r = getter(v8::Utils::ToLocal(name_handle), info); |
| 817 | } |
| 818 | RETURN_IF_SCHEDULED_EXCEPTION(); |
| 819 | if (!r.IsEmpty()) { |
| 820 | return *v8::Utils::OpenHandle(*r); |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | return Heap::no_interceptor_result_sentinel(); |
| 825 | } |
| 826 | |
| 827 | |
| 828 | static Object* ThrowReferenceError(String* name) { |
| 829 | // If the load is non-contextual, just return the undefined result. |
| 830 | // Note that both keyed and non-keyed loads may end up here, so we |
| 831 | // can't use either LoadIC or KeyedLoadIC constructors. |
| 832 | IC ic(IC::NO_EXTRA_FRAME); |
| 833 | ASSERT(ic.target()->is_load_stub() || ic.target()->is_keyed_load_stub()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 834 | if (!ic.SlowIsContextual()) return Heap::undefined_value(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 835 | |
| 836 | // Throw a reference error. |
| 837 | HandleScope scope; |
| 838 | Handle<String> name_handle(name); |
| 839 | Handle<Object> error = |
| 840 | Factory::NewReferenceError("not_defined", |
| 841 | HandleVector(&name_handle, 1)); |
| 842 | return Top::Throw(*error); |
| 843 | } |
| 844 | |
| 845 | |
| 846 | static Object* LoadWithInterceptor(Arguments* args, |
| 847 | PropertyAttributes* attrs) { |
| 848 | Handle<JSObject> receiver_handle = args->at<JSObject>(0); |
| 849 | Handle<JSObject> holder_handle = args->at<JSObject>(1); |
| 850 | Handle<String> name_handle = args->at<String>(2); |
| 851 | Handle<InterceptorInfo> interceptor_info = args->at<InterceptorInfo>(3); |
| 852 | Handle<Object> data_handle = args->at<Object>(4); |
| 853 | |
| 854 | Address getter_address = v8::ToCData<Address>(interceptor_info->getter()); |
| 855 | v8::NamedPropertyGetter getter = |
| 856 | FUNCTION_CAST<v8::NamedPropertyGetter>(getter_address); |
| 857 | ASSERT(getter != NULL); |
| 858 | |
| 859 | { |
| 860 | // Use the interceptor getter. |
| 861 | CustomArguments args(*data_handle, *receiver_handle, *holder_handle); |
| 862 | v8::AccessorInfo info(args.end()); |
| 863 | HandleScope scope; |
| 864 | v8::Handle<v8::Value> r; |
| 865 | { |
| 866 | // Leaving JavaScript. |
| 867 | VMState state(EXTERNAL); |
| 868 | r = getter(v8::Utils::ToLocal(name_handle), info); |
| 869 | } |
| 870 | RETURN_IF_SCHEDULED_EXCEPTION(); |
| 871 | if (!r.IsEmpty()) { |
| 872 | *attrs = NONE; |
| 873 | return *v8::Utils::OpenHandle(*r); |
| 874 | } |
| 875 | } |
| 876 | |
| 877 | Object* result = holder_handle->GetPropertyPostInterceptor( |
| 878 | *receiver_handle, |
| 879 | *name_handle, |
| 880 | attrs); |
| 881 | RETURN_IF_SCHEDULED_EXCEPTION(); |
| 882 | return result; |
| 883 | } |
| 884 | |
| 885 | |
| 886 | /** |
| 887 | * Loads a property with an interceptor performing post interceptor |
| 888 | * lookup if interceptor failed. |
| 889 | */ |
| 890 | Object* LoadPropertyWithInterceptorForLoad(Arguments args) { |
| 891 | PropertyAttributes attr = NONE; |
| 892 | Object* result = LoadWithInterceptor(&args, &attr); |
| 893 | if (result->IsFailure()) return result; |
| 894 | |
| 895 | // If the property is present, return it. |
| 896 | if (attr != ABSENT) return result; |
| 897 | return ThrowReferenceError(String::cast(args[2])); |
| 898 | } |
| 899 | |
| 900 | |
| 901 | Object* LoadPropertyWithInterceptorForCall(Arguments args) { |
| 902 | PropertyAttributes attr; |
| 903 | Object* result = LoadWithInterceptor(&args, &attr); |
| 904 | RETURN_IF_SCHEDULED_EXCEPTION(); |
| 905 | // This is call IC. In this case, we simply return the undefined result which |
| 906 | // will lead to an exception when trying to invoke the result as a |
| 907 | // function. |
| 908 | return result; |
| 909 | } |
| 910 | |
| 911 | |
| 912 | Object* StoreInterceptorProperty(Arguments args) { |
| 913 | JSObject* recv = JSObject::cast(args[0]); |
| 914 | String* name = String::cast(args[1]); |
| 915 | Object* value = args[2]; |
| 916 | ASSERT(recv->HasNamedInterceptor()); |
| 917 | PropertyAttributes attr = NONE; |
| 918 | Object* result = recv->SetPropertyWithInterceptor(name, value, attr); |
| 919 | return result; |
| 920 | } |
| 921 | |
| 922 | |
| 923 | Object* StubCompiler::CompileCallInitialize(Code::Flags flags) { |
| 924 | HandleScope scope; |
| 925 | int argc = Code::ExtractArgumentsCountFromFlags(flags); |
| 926 | CallIC::GenerateInitialize(masm(), argc); |
| 927 | Object* result = GetCodeWithFlags(flags, "CompileCallInitialize"); |
| 928 | if (!result->IsFailure()) { |
| 929 | Counters::call_initialize_stubs.Increment(); |
| 930 | Code* code = Code::cast(result); |
| 931 | USE(code); |
| 932 | LOG(CodeCreateEvent(Logger::CALL_INITIALIZE_TAG, |
| 933 | code, code->arguments_count())); |
| 934 | } |
| 935 | return result; |
| 936 | } |
| 937 | |
| 938 | |
| 939 | Object* StubCompiler::CompileCallPreMonomorphic(Code::Flags flags) { |
| 940 | HandleScope scope; |
| 941 | int argc = Code::ExtractArgumentsCountFromFlags(flags); |
| 942 | // The code of the PreMonomorphic stub is the same as the code |
| 943 | // of the Initialized stub. They just differ on the code object flags. |
| 944 | CallIC::GenerateInitialize(masm(), argc); |
| 945 | Object* result = GetCodeWithFlags(flags, "CompileCallPreMonomorphic"); |
| 946 | if (!result->IsFailure()) { |
| 947 | Counters::call_premonomorphic_stubs.Increment(); |
| 948 | Code* code = Code::cast(result); |
| 949 | USE(code); |
| 950 | LOG(CodeCreateEvent(Logger::CALL_PRE_MONOMORPHIC_TAG, |
| 951 | code, code->arguments_count())); |
| 952 | } |
| 953 | return result; |
| 954 | } |
| 955 | |
| 956 | |
| 957 | Object* StubCompiler::CompileCallNormal(Code::Flags flags) { |
| 958 | HandleScope scope; |
| 959 | int argc = Code::ExtractArgumentsCountFromFlags(flags); |
| 960 | CallIC::GenerateNormal(masm(), argc); |
| 961 | Object* result = GetCodeWithFlags(flags, "CompileCallNormal"); |
| 962 | if (!result->IsFailure()) { |
| 963 | Counters::call_normal_stubs.Increment(); |
| 964 | Code* code = Code::cast(result); |
| 965 | USE(code); |
| 966 | LOG(CodeCreateEvent(Logger::CALL_NORMAL_TAG, |
| 967 | code, code->arguments_count())); |
| 968 | } |
| 969 | return result; |
| 970 | } |
| 971 | |
| 972 | |
| 973 | Object* StubCompiler::CompileCallMegamorphic(Code::Flags flags) { |
| 974 | HandleScope scope; |
| 975 | int argc = Code::ExtractArgumentsCountFromFlags(flags); |
| 976 | CallIC::GenerateMegamorphic(masm(), argc); |
| 977 | Object* result = GetCodeWithFlags(flags, "CompileCallMegamorphic"); |
| 978 | if (!result->IsFailure()) { |
| 979 | Counters::call_megamorphic_stubs.Increment(); |
| 980 | Code* code = Code::cast(result); |
| 981 | USE(code); |
| 982 | LOG(CodeCreateEvent(Logger::CALL_MEGAMORPHIC_TAG, |
| 983 | code, code->arguments_count())); |
| 984 | } |
| 985 | return result; |
| 986 | } |
| 987 | |
| 988 | |
| 989 | Object* StubCompiler::CompileCallMiss(Code::Flags flags) { |
| 990 | HandleScope scope; |
| 991 | int argc = Code::ExtractArgumentsCountFromFlags(flags); |
| 992 | CallIC::GenerateMiss(masm(), argc); |
| 993 | Object* result = GetCodeWithFlags(flags, "CompileCallMiss"); |
| 994 | if (!result->IsFailure()) { |
| 995 | Counters::call_megamorphic_stubs.Increment(); |
| 996 | Code* code = Code::cast(result); |
| 997 | USE(code); |
| 998 | LOG(CodeCreateEvent(Logger::CALL_MISS_TAG, code, code->arguments_count())); |
| 999 | } |
| 1000 | return result; |
| 1001 | } |
| 1002 | |
| 1003 | |
| 1004 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 1005 | Object* StubCompiler::CompileCallDebugBreak(Code::Flags flags) { |
| 1006 | HandleScope scope; |
| 1007 | Debug::GenerateCallICDebugBreak(masm()); |
| 1008 | Object* result = GetCodeWithFlags(flags, "CompileCallDebugBreak"); |
| 1009 | if (!result->IsFailure()) { |
| 1010 | Code* code = Code::cast(result); |
| 1011 | USE(code); |
| 1012 | LOG(CodeCreateEvent(Logger::CALL_DEBUG_BREAK_TAG, |
| 1013 | code, code->arguments_count())); |
| 1014 | } |
| 1015 | return result; |
| 1016 | } |
| 1017 | |
| 1018 | |
| 1019 | Object* StubCompiler::CompileCallDebugPrepareStepIn(Code::Flags flags) { |
| 1020 | HandleScope scope; |
| 1021 | // Use the same code for the the step in preparations as we do for |
| 1022 | // the miss case. |
| 1023 | int argc = Code::ExtractArgumentsCountFromFlags(flags); |
| 1024 | CallIC::GenerateMiss(masm(), argc); |
| 1025 | Object* result = GetCodeWithFlags(flags, "CompileCallDebugPrepareStepIn"); |
| 1026 | if (!result->IsFailure()) { |
| 1027 | Code* code = Code::cast(result); |
| 1028 | USE(code); |
| 1029 | LOG(CodeCreateEvent(Logger::CALL_DEBUG_PREPARE_STEP_IN_TAG, |
| 1030 | code, code->arguments_count())); |
| 1031 | } |
| 1032 | return result; |
| 1033 | } |
| 1034 | #endif |
| 1035 | |
| 1036 | |
| 1037 | Object* StubCompiler::GetCodeWithFlags(Code::Flags flags, const char* name) { |
| 1038 | // Check for allocation failures during stub compilation. |
| 1039 | if (failure_->IsFailure()) return failure_; |
| 1040 | |
| 1041 | // Create code object in the heap. |
| 1042 | CodeDesc desc; |
| 1043 | masm_.GetCode(&desc); |
| 1044 | Object* result = Heap::CreateCode(desc, NULL, flags, masm_.CodeObject()); |
| 1045 | #ifdef ENABLE_DISASSEMBLER |
| 1046 | if (FLAG_print_code_stubs && !result->IsFailure()) { |
| 1047 | Code::cast(result)->Disassemble(name); |
| 1048 | } |
| 1049 | #endif |
| 1050 | return result; |
| 1051 | } |
| 1052 | |
| 1053 | |
| 1054 | Object* StubCompiler::GetCodeWithFlags(Code::Flags flags, String* name) { |
| 1055 | if (FLAG_print_code_stubs && (name != NULL)) { |
| 1056 | return GetCodeWithFlags(flags, *name->ToCString()); |
| 1057 | } |
| 1058 | return GetCodeWithFlags(flags, reinterpret_cast<char*>(NULL)); |
| 1059 | } |
| 1060 | |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame^] | 1061 | void StubCompiler::LookupPostInterceptor(JSObject* holder, |
| 1062 | String* name, |
| 1063 | LookupResult* lookup) { |
| 1064 | holder->LocalLookupRealNamedProperty(name, lookup); |
| 1065 | if (lookup->IsNotFound()) { |
| 1066 | Object* proto = holder->GetPrototype(); |
| 1067 | if (proto != Heap::null_value()) { |
| 1068 | proto->Lookup(name, lookup); |
| 1069 | } |
| 1070 | } |
| 1071 | } |
| 1072 | |
| 1073 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1074 | |
| 1075 | Object* LoadStubCompiler::GetCode(PropertyType type, String* name) { |
| 1076 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::LOAD_IC, type); |
| 1077 | return GetCodeWithFlags(flags, name); |
| 1078 | } |
| 1079 | |
| 1080 | |
| 1081 | Object* KeyedLoadStubCompiler::GetCode(PropertyType type, String* name) { |
| 1082 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::KEYED_LOAD_IC, type); |
| 1083 | return GetCodeWithFlags(flags, name); |
| 1084 | } |
| 1085 | |
| 1086 | |
| 1087 | Object* StoreStubCompiler::GetCode(PropertyType type, String* name) { |
| 1088 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::STORE_IC, type); |
| 1089 | return GetCodeWithFlags(flags, name); |
| 1090 | } |
| 1091 | |
| 1092 | |
| 1093 | Object* KeyedStoreStubCompiler::GetCode(PropertyType type, String* name) { |
| 1094 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::KEYED_STORE_IC, type); |
| 1095 | return GetCodeWithFlags(flags, name); |
| 1096 | } |
| 1097 | |
| 1098 | |
| 1099 | Object* CallStubCompiler::GetCode(PropertyType type, String* name) { |
| 1100 | int argc = arguments_.immediate(); |
| 1101 | Code::Flags flags = Code::ComputeMonomorphicFlags(Code::CALL_IC, |
| 1102 | type, |
| 1103 | in_loop_, |
| 1104 | argc); |
| 1105 | return GetCodeWithFlags(flags, name); |
| 1106 | } |
| 1107 | |
| 1108 | |
| 1109 | Object* ConstructStubCompiler::GetCode() { |
| 1110 | Code::Flags flags = Code::ComputeFlags(Code::STUB); |
| 1111 | Object* result = GetCodeWithFlags(flags, "ConstructStub"); |
| 1112 | if (!result->IsFailure()) { |
| 1113 | Code* code = Code::cast(result); |
| 1114 | USE(code); |
| 1115 | LOG(CodeCreateEvent(Logger::STUB_TAG, code, "ConstructStub")); |
| 1116 | } |
| 1117 | return result; |
| 1118 | } |
| 1119 | |
| 1120 | |
| 1121 | } } // namespace v8::internal |