Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1 | // Copyright 2006-2008 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 | #ifndef V8_STUB_CACHE_H_ |
| 29 | #define V8_STUB_CACHE_H_ |
| 30 | |
| 31 | #include "macro-assembler.h" |
| 32 | |
| 33 | namespace v8 { |
| 34 | namespace internal { |
| 35 | |
| 36 | |
| 37 | // The stub cache is used for megamorphic calls and property accesses. |
| 38 | // It maps (map, name, type)->Code* |
| 39 | |
| 40 | // The design of the table uses the inline cache stubs used for |
| 41 | // mono-morphic calls. The beauty of this, we do not have to |
| 42 | // invalidate the cache whenever a prototype map is changed. The stub |
| 43 | // validates the map chain as in the mono-morphic case. |
| 44 | |
| 45 | class SCTableReference; |
| 46 | |
| 47 | class StubCache : public AllStatic { |
| 48 | public: |
| 49 | struct Entry { |
| 50 | String* key; |
| 51 | Code* value; |
| 52 | }; |
| 53 | |
| 54 | |
| 55 | static void Initialize(bool create_heap_objects); |
| 56 | |
| 57 | // Computes the right stub matching. Inserts the result in the |
| 58 | // cache before returning. This might compile a stub if needed. |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 59 | static Object* ComputeLoadNonexistent(String* name, JSObject* receiver); |
| 60 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 61 | static Object* ComputeLoadField(String* name, |
| 62 | JSObject* receiver, |
| 63 | JSObject* holder, |
| 64 | int field_index); |
| 65 | |
| 66 | static Object* ComputeLoadCallback(String* name, |
| 67 | JSObject* receiver, |
| 68 | JSObject* holder, |
| 69 | AccessorInfo* callback); |
| 70 | |
| 71 | static Object* ComputeLoadConstant(String* name, |
| 72 | JSObject* receiver, |
| 73 | JSObject* holder, |
| 74 | Object* value); |
| 75 | |
| 76 | static Object* ComputeLoadInterceptor(String* name, |
| 77 | JSObject* receiver, |
| 78 | JSObject* holder); |
| 79 | |
| 80 | static Object* ComputeLoadNormal(String* name, JSObject* receiver); |
| 81 | |
| 82 | |
| 83 | static Object* ComputeLoadGlobal(String* name, |
| 84 | JSObject* receiver, |
| 85 | GlobalObject* holder, |
| 86 | JSGlobalPropertyCell* cell, |
| 87 | bool is_dont_delete); |
| 88 | |
| 89 | |
| 90 | // --- |
| 91 | |
| 92 | static Object* ComputeKeyedLoadField(String* name, |
| 93 | JSObject* receiver, |
| 94 | JSObject* holder, |
| 95 | int field_index); |
| 96 | |
| 97 | static Object* ComputeKeyedLoadCallback(String* name, |
| 98 | JSObject* receiver, |
| 99 | JSObject* holder, |
| 100 | AccessorInfo* callback); |
| 101 | |
| 102 | static Object* ComputeKeyedLoadConstant(String* name, JSObject* receiver, |
| 103 | JSObject* holder, Object* value); |
| 104 | |
| 105 | static Object* ComputeKeyedLoadInterceptor(String* name, |
| 106 | JSObject* receiver, |
| 107 | JSObject* holder); |
| 108 | |
| 109 | static Object* ComputeKeyedLoadArrayLength(String* name, JSArray* receiver); |
| 110 | |
| 111 | static Object* ComputeKeyedLoadStringLength(String* name, |
| 112 | String* receiver); |
| 113 | |
| 114 | static Object* ComputeKeyedLoadFunctionPrototype(String* name, |
| 115 | JSFunction* receiver); |
| 116 | |
| 117 | // --- |
| 118 | |
| 119 | static Object* ComputeStoreField(String* name, |
| 120 | JSObject* receiver, |
| 121 | int field_index, |
| 122 | Map* transition = NULL); |
| 123 | |
| 124 | static Object* ComputeStoreGlobal(String* name, |
| 125 | GlobalObject* receiver, |
| 126 | JSGlobalPropertyCell* cell); |
| 127 | |
| 128 | static Object* ComputeStoreCallback(String* name, |
| 129 | JSObject* receiver, |
| 130 | AccessorInfo* callback); |
| 131 | |
| 132 | static Object* ComputeStoreInterceptor(String* name, JSObject* receiver); |
| 133 | |
| 134 | // --- |
| 135 | |
| 136 | static Object* ComputeKeyedStoreField(String* name, |
| 137 | JSObject* receiver, |
| 138 | int field_index, |
| 139 | Map* transition = NULL); |
| 140 | |
| 141 | // --- |
| 142 | |
| 143 | static Object* ComputeCallField(int argc, |
| 144 | InLoopFlag in_loop, |
| 145 | String* name, |
| 146 | Object* object, |
| 147 | JSObject* holder, |
| 148 | int index); |
| 149 | |
| 150 | static Object* ComputeCallConstant(int argc, |
| 151 | InLoopFlag in_loop, |
| 152 | String* name, |
| 153 | Object* object, |
| 154 | JSObject* holder, |
| 155 | JSFunction* function); |
| 156 | |
| 157 | static Object* ComputeCallNormal(int argc, |
| 158 | InLoopFlag in_loop, |
| 159 | String* name, |
| 160 | JSObject* receiver); |
| 161 | |
| 162 | static Object* ComputeCallInterceptor(int argc, |
| 163 | String* name, |
| 164 | Object* object, |
| 165 | JSObject* holder); |
| 166 | |
| 167 | static Object* ComputeCallGlobal(int argc, |
| 168 | InLoopFlag in_loop, |
| 169 | String* name, |
| 170 | JSObject* receiver, |
| 171 | GlobalObject* holder, |
| 172 | JSGlobalPropertyCell* cell, |
| 173 | JSFunction* function); |
| 174 | |
| 175 | // --- |
| 176 | |
| 177 | static Object* ComputeCallInitialize(int argc, InLoopFlag in_loop); |
| 178 | static Object* ComputeCallPreMonomorphic(int argc, InLoopFlag in_loop); |
| 179 | static Object* ComputeCallNormal(int argc, InLoopFlag in_loop); |
| 180 | static Object* ComputeCallMegamorphic(int argc, InLoopFlag in_loop); |
| 181 | static Object* ComputeCallMiss(int argc); |
| 182 | |
| 183 | // Finds the Code object stored in the Heap::non_monomorphic_cache(). |
| 184 | static Code* FindCallInitialize(int argc, InLoopFlag in_loop); |
| 185 | |
| 186 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 187 | static Object* ComputeCallDebugBreak(int argc); |
| 188 | static Object* ComputeCallDebugPrepareStepIn(int argc); |
| 189 | #endif |
| 190 | |
| 191 | static Object* ComputeLazyCompile(int argc); |
| 192 | |
| 193 | |
| 194 | // Update cache for entry hash(name, map). |
| 195 | static Code* Set(String* name, Map* map, Code* code); |
| 196 | |
| 197 | // Clear the lookup table (@ mark compact collection). |
| 198 | static void Clear(); |
| 199 | |
| 200 | // Functions for generating stubs at startup. |
| 201 | static void GenerateMiss(MacroAssembler* masm); |
| 202 | |
| 203 | // Generate code for probing the stub cache table. |
| 204 | // If extra != no_reg it might be used as am extra scratch register. |
| 205 | static void GenerateProbe(MacroAssembler* masm, |
| 206 | Code::Flags flags, |
| 207 | Register receiver, |
| 208 | Register name, |
| 209 | Register scratch, |
| 210 | Register extra); |
| 211 | |
| 212 | enum Table { |
| 213 | kPrimary, |
| 214 | kSecondary |
| 215 | }; |
| 216 | |
| 217 | private: |
| 218 | friend class SCTableReference; |
| 219 | static const int kPrimaryTableSize = 2048; |
| 220 | static const int kSecondaryTableSize = 512; |
| 221 | static Entry primary_[]; |
| 222 | static Entry secondary_[]; |
| 223 | |
| 224 | // Computes the hashed offsets for primary and secondary caches. |
| 225 | static int PrimaryOffset(String* name, Code::Flags flags, Map* map) { |
| 226 | // This works well because the heap object tag size and the hash |
| 227 | // shift are equal. Shifting down the length field to get the |
| 228 | // hash code would effectively throw away two bits of the hash |
| 229 | // code. |
| 230 | ASSERT(kHeapObjectTagSize == String::kHashShift); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 231 | // Compute the hash of the name (use entire hash field). |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 232 | ASSERT(name->HasHashCode()); |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 233 | uint32_t field = name->hash_field(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 234 | // Using only the low bits in 64-bit mode is unlikely to increase the |
| 235 | // risk of collision even if the heap is spread over an area larger than |
| 236 | // 4Gb (and not at all if it isn't). |
| 237 | uint32_t map_low32bits = |
| 238 | static_cast<uint32_t>(reinterpret_cast<uintptr_t>(map)); |
| 239 | // We always set the in_loop bit to zero when generating the lookup code |
| 240 | // so do it here too so the hash codes match. |
| 241 | uint32_t iflags = |
| 242 | (static_cast<uint32_t>(flags) & ~Code::kFlagsNotUsedInLookup); |
| 243 | // Base the offset on a simple combination of name, flags, and map. |
| 244 | uint32_t key = (map_low32bits + field) ^ iflags; |
| 245 | return key & ((kPrimaryTableSize - 1) << kHeapObjectTagSize); |
| 246 | } |
| 247 | |
| 248 | static int SecondaryOffset(String* name, Code::Flags flags, int seed) { |
| 249 | // Use the seed from the primary cache in the secondary cache. |
| 250 | uint32_t string_low32bits = |
| 251 | static_cast<uint32_t>(reinterpret_cast<uintptr_t>(name)); |
| 252 | // We always set the in_loop bit to zero when generating the lookup code |
| 253 | // so do it here too so the hash codes match. |
| 254 | uint32_t iflags = |
| 255 | (static_cast<uint32_t>(flags) & ~Code::kFlagsICInLoopMask); |
| 256 | uint32_t key = seed - string_low32bits + iflags; |
| 257 | return key & ((kSecondaryTableSize - 1) << kHeapObjectTagSize); |
| 258 | } |
| 259 | |
| 260 | // Compute the entry for a given offset in exactly the same way as |
| 261 | // we do in generated code. We generate an hash code that already |
| 262 | // ends in String::kHashShift 0s. Then we shift it so it is a multiple |
| 263 | // of sizeof(Entry). This makes it easier to avoid making mistakes |
| 264 | // in the hashed offset computations. |
| 265 | static Entry* entry(Entry* table, int offset) { |
| 266 | const int shift_amount = kPointerSizeLog2 + 1 - String::kHashShift; |
| 267 | return reinterpret_cast<Entry*>( |
| 268 | reinterpret_cast<Address>(table) + (offset << shift_amount)); |
| 269 | } |
| 270 | }; |
| 271 | |
| 272 | |
| 273 | class SCTableReference { |
| 274 | public: |
| 275 | static SCTableReference keyReference(StubCache::Table table) { |
| 276 | return SCTableReference( |
| 277 | reinterpret_cast<Address>(&first_entry(table)->key)); |
| 278 | } |
| 279 | |
| 280 | |
| 281 | static SCTableReference valueReference(StubCache::Table table) { |
| 282 | return SCTableReference( |
| 283 | reinterpret_cast<Address>(&first_entry(table)->value)); |
| 284 | } |
| 285 | |
| 286 | Address address() const { return address_; } |
| 287 | |
| 288 | private: |
| 289 | explicit SCTableReference(Address address) : address_(address) {} |
| 290 | |
| 291 | static StubCache::Entry* first_entry(StubCache::Table table) { |
| 292 | switch (table) { |
| 293 | case StubCache::kPrimary: return StubCache::primary_; |
| 294 | case StubCache::kSecondary: return StubCache::secondary_; |
| 295 | } |
| 296 | UNREACHABLE(); |
| 297 | return NULL; |
| 298 | } |
| 299 | |
| 300 | Address address_; |
| 301 | }; |
| 302 | |
| 303 | // ------------------------------------------------------------------------ |
| 304 | |
| 305 | |
| 306 | // Support functions for IC stubs for callbacks. |
| 307 | Object* LoadCallbackProperty(Arguments args); |
| 308 | Object* StoreCallbackProperty(Arguments args); |
| 309 | |
| 310 | |
| 311 | // Support functions for IC stubs for interceptors. |
| 312 | Object* LoadPropertyWithInterceptorOnly(Arguments args); |
| 313 | Object* LoadPropertyWithInterceptorForLoad(Arguments args); |
| 314 | Object* LoadPropertyWithInterceptorForCall(Arguments args); |
| 315 | Object* StoreInterceptorProperty(Arguments args); |
| 316 | Object* CallInterceptorProperty(Arguments args); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 317 | Object* KeyedLoadPropertyWithInterceptor(Arguments args); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 318 | |
| 319 | |
| 320 | // Support function for computing call IC miss stubs. |
| 321 | Handle<Code> ComputeCallMiss(int argc); |
| 322 | |
| 323 | |
| 324 | // The stub compiler compiles stubs for the stub cache. |
| 325 | class StubCompiler BASE_EMBEDDED { |
| 326 | public: |
| 327 | enum CheckType { |
| 328 | RECEIVER_MAP_CHECK, |
| 329 | STRING_CHECK, |
| 330 | NUMBER_CHECK, |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 331 | BOOLEAN_CHECK |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 332 | }; |
| 333 | |
| 334 | StubCompiler() : scope_(), masm_(NULL, 256), failure_(NULL) { } |
| 335 | |
| 336 | Object* CompileCallInitialize(Code::Flags flags); |
| 337 | Object* CompileCallPreMonomorphic(Code::Flags flags); |
| 338 | Object* CompileCallNormal(Code::Flags flags); |
| 339 | Object* CompileCallMegamorphic(Code::Flags flags); |
| 340 | Object* CompileCallMiss(Code::Flags flags); |
| 341 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 342 | Object* CompileCallDebugBreak(Code::Flags flags); |
| 343 | Object* CompileCallDebugPrepareStepIn(Code::Flags flags); |
| 344 | #endif |
| 345 | Object* CompileLazyCompile(Code::Flags flags); |
| 346 | |
| 347 | // Static functions for generating parts of stubs. |
| 348 | static void GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 349 | int index, |
| 350 | Register prototype); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 351 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 352 | static void GenerateFastPropertyLoad(MacroAssembler* masm, |
| 353 | Register dst, Register src, |
| 354 | JSObject* holder, int index); |
| 355 | |
| 356 | static void GenerateLoadArrayLength(MacroAssembler* masm, |
| 357 | Register receiver, |
| 358 | Register scratch, |
| 359 | Label* miss_label); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 360 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 361 | static void GenerateLoadStringLength(MacroAssembler* masm, |
| 362 | Register receiver, |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 363 | Register scratch1, |
| 364 | Register scratch2, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 365 | Label* miss_label); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 366 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 367 | static void GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 368 | Register receiver, |
| 369 | Register scratch1, |
| 370 | Register scratch2, |
| 371 | Label* miss_label); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 372 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 373 | static void GenerateStoreField(MacroAssembler* masm, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 374 | JSObject* object, |
| 375 | int index, |
| 376 | Map* transition, |
| 377 | Register receiver_reg, |
| 378 | Register name_reg, |
| 379 | Register scratch, |
| 380 | Label* miss_label); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 381 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 382 | static void GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind); |
| 383 | |
| 384 | // Check the integrity of the prototype chain to make sure that the |
| 385 | // current IC is still valid. |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 386 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 387 | Register CheckPrototypes(JSObject* object, |
| 388 | Register object_reg, |
| 389 | JSObject* holder, |
| 390 | Register holder_reg, |
| 391 | Register scratch, |
| 392 | String* name, |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 393 | Label* miss) { |
| 394 | return CheckPrototypes(object, object_reg, holder, holder_reg, scratch, |
| 395 | name, kInvalidProtoDepth, miss); |
| 396 | } |
| 397 | |
| 398 | Register CheckPrototypes(JSObject* object, |
| 399 | Register object_reg, |
| 400 | JSObject* holder, |
| 401 | Register holder_reg, |
| 402 | Register scratch, |
| 403 | String* name, |
| 404 | int save_at_depth, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 405 | Label* miss); |
| 406 | |
| 407 | protected: |
| 408 | Object* GetCodeWithFlags(Code::Flags flags, const char* name); |
| 409 | Object* GetCodeWithFlags(Code::Flags flags, String* name); |
| 410 | |
| 411 | MacroAssembler* masm() { return &masm_; } |
| 412 | void set_failure(Failure* failure) { failure_ = failure; } |
| 413 | |
| 414 | void GenerateLoadField(JSObject* object, |
| 415 | JSObject* holder, |
| 416 | Register receiver, |
| 417 | Register scratch1, |
| 418 | Register scratch2, |
| 419 | int index, |
| 420 | String* name, |
| 421 | Label* miss); |
| 422 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 423 | bool GenerateLoadCallback(JSObject* object, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 424 | JSObject* holder, |
| 425 | Register receiver, |
| 426 | Register name_reg, |
| 427 | Register scratch1, |
| 428 | Register scratch2, |
| 429 | AccessorInfo* callback, |
| 430 | String* name, |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 431 | Label* miss, |
| 432 | Failure** failure); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 433 | |
| 434 | void GenerateLoadConstant(JSObject* object, |
| 435 | JSObject* holder, |
| 436 | Register receiver, |
| 437 | Register scratch1, |
| 438 | Register scratch2, |
| 439 | Object* value, |
| 440 | String* name, |
| 441 | Label* miss); |
| 442 | |
| 443 | void GenerateLoadInterceptor(JSObject* object, |
| 444 | JSObject* holder, |
| 445 | LookupResult* lookup, |
| 446 | Register receiver, |
| 447 | Register name_reg, |
| 448 | Register scratch1, |
| 449 | Register scratch2, |
| 450 | String* name, |
| 451 | Label* miss); |
| 452 | |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 453 | static void LookupPostInterceptor(JSObject* holder, |
| 454 | String* name, |
| 455 | LookupResult* lookup); |
| 456 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 457 | private: |
| 458 | HandleScope scope_; |
| 459 | MacroAssembler masm_; |
| 460 | Failure* failure_; |
| 461 | }; |
| 462 | |
| 463 | |
| 464 | class LoadStubCompiler: public StubCompiler { |
| 465 | public: |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 466 | Object* CompileLoadNonexistent(String* name, |
| 467 | JSObject* object, |
| 468 | JSObject* last); |
| 469 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 470 | Object* CompileLoadField(JSObject* object, |
| 471 | JSObject* holder, |
| 472 | int index, |
| 473 | String* name); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 474 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 475 | Object* CompileLoadCallback(String* name, |
| 476 | JSObject* object, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 477 | JSObject* holder, |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 478 | AccessorInfo* callback); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 479 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 480 | Object* CompileLoadConstant(JSObject* object, |
| 481 | JSObject* holder, |
| 482 | Object* value, |
| 483 | String* name); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 484 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 485 | Object* CompileLoadInterceptor(JSObject* object, |
| 486 | JSObject* holder, |
| 487 | String* name); |
| 488 | |
| 489 | Object* CompileLoadGlobal(JSObject* object, |
| 490 | GlobalObject* holder, |
| 491 | JSGlobalPropertyCell* cell, |
| 492 | String* name, |
| 493 | bool is_dont_delete); |
| 494 | |
| 495 | private: |
| 496 | Object* GetCode(PropertyType type, String* name); |
| 497 | }; |
| 498 | |
| 499 | |
| 500 | class KeyedLoadStubCompiler: public StubCompiler { |
| 501 | public: |
| 502 | Object* CompileLoadField(String* name, |
| 503 | JSObject* object, |
| 504 | JSObject* holder, |
| 505 | int index); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 506 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 507 | Object* CompileLoadCallback(String* name, |
| 508 | JSObject* object, |
| 509 | JSObject* holder, |
| 510 | AccessorInfo* callback); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 511 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 512 | Object* CompileLoadConstant(String* name, |
| 513 | JSObject* object, |
| 514 | JSObject* holder, |
| 515 | Object* value); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 516 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 517 | Object* CompileLoadInterceptor(JSObject* object, |
| 518 | JSObject* holder, |
| 519 | String* name); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 520 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 521 | Object* CompileLoadArrayLength(String* name); |
| 522 | Object* CompileLoadStringLength(String* name); |
| 523 | Object* CompileLoadFunctionPrototype(String* name); |
| 524 | |
| 525 | private: |
| 526 | Object* GetCode(PropertyType type, String* name); |
| 527 | }; |
| 528 | |
| 529 | |
| 530 | class StoreStubCompiler: public StubCompiler { |
| 531 | public: |
| 532 | Object* CompileStoreField(JSObject* object, |
| 533 | int index, |
| 534 | Map* transition, |
| 535 | String* name); |
| 536 | Object* CompileStoreCallback(JSObject* object, |
| 537 | AccessorInfo* callbacks, |
| 538 | String* name); |
| 539 | Object* CompileStoreInterceptor(JSObject* object, String* name); |
| 540 | Object* CompileStoreGlobal(GlobalObject* object, |
| 541 | JSGlobalPropertyCell* holder, |
| 542 | String* name); |
| 543 | |
| 544 | |
| 545 | private: |
| 546 | Object* GetCode(PropertyType type, String* name); |
| 547 | }; |
| 548 | |
| 549 | |
| 550 | class KeyedStoreStubCompiler: public StubCompiler { |
| 551 | public: |
| 552 | Object* CompileStoreField(JSObject* object, |
| 553 | int index, |
| 554 | Map* transition, |
| 555 | String* name); |
| 556 | |
| 557 | private: |
| 558 | Object* GetCode(PropertyType type, String* name); |
| 559 | }; |
| 560 | |
| 561 | |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame^] | 562 | // List of functions with custom constant call IC stubs. |
| 563 | // |
| 564 | // Installation of custom call generators for the selected builtins is |
| 565 | // handled by the bootstrapper. |
| 566 | // |
| 567 | // Each entry has a name of a global function (lowercased), a name of |
| 568 | // a builtin function on its instance prototype (the one the generator |
| 569 | // is set for), and a name of a generator itself (used to build ids |
| 570 | // and generator function names). |
| 571 | #define CUSTOM_CALL_IC_GENERATORS(V) \ |
| 572 | V(array, push, ArrayPush) \ |
| 573 | V(array, pop, ArrayPop) |
| 574 | |
| 575 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 576 | class CallStubCompiler: public StubCompiler { |
| 577 | public: |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame^] | 578 | enum { |
| 579 | #define DECLARE_CALL_GENERATOR_ID(ignored1, ignored2, name) \ |
| 580 | k##name##CallGenerator, |
| 581 | CUSTOM_CALL_IC_GENERATORS(DECLARE_CALL_GENERATOR_ID) |
| 582 | #undef DECLARE_CALL_GENERATOR_ID |
| 583 | kNumCallGenerators |
| 584 | }; |
| 585 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 586 | CallStubCompiler(int argc, InLoopFlag in_loop) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 587 | : arguments_(argc), in_loop_(in_loop) { } |
| 588 | |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 589 | Object* CompileCallField(JSObject* object, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 590 | JSObject* holder, |
| 591 | int index, |
| 592 | String* name); |
| 593 | Object* CompileCallConstant(Object* object, |
| 594 | JSObject* holder, |
| 595 | JSFunction* function, |
| 596 | String* name, |
| 597 | CheckType check); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 598 | Object* CompileCallInterceptor(JSObject* object, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 599 | JSObject* holder, |
| 600 | String* name); |
| 601 | Object* CompileCallGlobal(JSObject* object, |
| 602 | GlobalObject* holder, |
| 603 | JSGlobalPropertyCell* cell, |
| 604 | JSFunction* function, |
| 605 | String* name); |
| 606 | |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame^] | 607 | // Compiles a custom call constant IC using the generator with given id. |
| 608 | Object* CompileCustomCall(int generator_id, |
| 609 | Object* object, |
| 610 | JSObject* holder, |
| 611 | JSFunction* function, |
| 612 | String* name, |
| 613 | CheckType check); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 614 | |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame^] | 615 | #define DECLARE_CALL_GENERATOR(ignored1, ignored2, name) \ |
| 616 | Object* Compile##name##Call(Object* object, \ |
| 617 | JSObject* holder, \ |
| 618 | JSFunction* function, \ |
| 619 | String* fname, \ |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 620 | CheckType check); |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame^] | 621 | CUSTOM_CALL_IC_GENERATORS(DECLARE_CALL_GENERATOR) |
| 622 | #undef DECLARE_CALL_GENERATOR |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 623 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 624 | private: |
| 625 | const ParameterCount arguments_; |
| 626 | const InLoopFlag in_loop_; |
| 627 | |
| 628 | const ParameterCount& arguments() { return arguments_; } |
| 629 | |
| 630 | Object* GetCode(PropertyType type, String* name); |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame^] | 631 | |
| 632 | // Convenience function. Calls GetCode above passing |
| 633 | // CONSTANT_FUNCTION type and the name of the given function. |
| 634 | Object* GetCode(JSFunction* function); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 635 | }; |
| 636 | |
| 637 | |
| 638 | class ConstructStubCompiler: public StubCompiler { |
| 639 | public: |
| 640 | explicit ConstructStubCompiler() {} |
| 641 | |
| 642 | Object* CompileConstructStub(SharedFunctionInfo* shared); |
| 643 | |
| 644 | private: |
| 645 | Object* GetCode(); |
| 646 | }; |
| 647 | |
| 648 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 649 | // Holds information about possible function call optimizations. |
| 650 | class CallOptimization BASE_EMBEDDED { |
| 651 | public: |
| 652 | explicit CallOptimization(LookupResult* lookup); |
| 653 | |
| 654 | explicit CallOptimization(JSFunction* function); |
| 655 | |
| 656 | bool is_constant_call() const { |
| 657 | return constant_function_ != NULL; |
| 658 | } |
| 659 | |
| 660 | JSFunction* constant_function() const { |
| 661 | ASSERT(constant_function_ != NULL); |
| 662 | return constant_function_; |
| 663 | } |
| 664 | |
| 665 | bool is_simple_api_call() const { |
| 666 | return is_simple_api_call_; |
| 667 | } |
| 668 | |
| 669 | FunctionTemplateInfo* expected_receiver_type() const { |
| 670 | ASSERT(is_simple_api_call_); |
| 671 | return expected_receiver_type_; |
| 672 | } |
| 673 | |
| 674 | CallHandlerInfo* api_call_info() const { |
| 675 | ASSERT(is_simple_api_call_); |
| 676 | return api_call_info_; |
| 677 | } |
| 678 | |
| 679 | // Returns the depth of the object having the expected type in the |
| 680 | // prototype chain between the two arguments. |
| 681 | int GetPrototypeDepthOfExpectedType(JSObject* object, |
| 682 | JSObject* holder) const; |
| 683 | |
| 684 | private: |
| 685 | void Initialize(JSFunction* function); |
| 686 | |
| 687 | // Determines whether the given function can be called using the |
| 688 | // fast api call builtin. |
| 689 | void AnalyzePossibleApiFunction(JSFunction* function); |
| 690 | |
| 691 | JSFunction* constant_function_; |
| 692 | bool is_simple_api_call_; |
| 693 | FunctionTemplateInfo* expected_receiver_type_; |
| 694 | CallHandlerInfo* api_call_info_; |
| 695 | }; |
| 696 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 697 | } } // namespace v8::internal |
| 698 | |
| 699 | #endif // V8_STUB_CACHE_H_ |