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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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4345 enum StubType { | 4345 enum StubType { |
4346 NORMAL, | 4346 NORMAL, |
4347 FIELD, | 4347 FIELD, |
4348 CONSTANT_FUNCTION, | 4348 CONSTANT_FUNCTION, |
4349 CALLBACKS, | 4349 CALLBACKS, |
4350 INTERCEPTOR, | 4350 INTERCEPTOR, |
4351 MAP_TRANSITION, | 4351 MAP_TRANSITION, |
4352 NONEXISTENT | 4352 NONEXISTENT |
4353 }; | 4353 }; |
4354 | 4354 |
| 4355 enum StubHolder { |
| 4356 OWN_STUB, |
| 4357 PROTOTYPE_STUB |
| 4358 }; |
| 4359 |
4355 enum { | 4360 enum { |
4356 NUMBER_OF_KINDS = LAST_IC_KIND + 1 | 4361 NUMBER_OF_KINDS = LAST_IC_KIND + 1 |
4357 }; | 4362 }; |
4358 | 4363 |
4359 typedef int ExtraICState; | 4364 typedef int ExtraICState; |
4360 | 4365 |
4361 static const ExtraICState kNoExtraICState = 0; | 4366 static const ExtraICState kNoExtraICState = 0; |
4362 | 4367 |
4363 #ifdef ENABLE_DISASSEMBLER | 4368 #ifdef ENABLE_DISASSEMBLER |
4364 // Printing | 4369 // Printing |
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4540 void FindAllMaps(MapHandleList* maps); | 4545 void FindAllMaps(MapHandleList* maps); |
4541 | 4546 |
4542 // Find the first code in an IC stub. | 4547 // Find the first code in an IC stub. |
4543 Code* FindFirstCode(); | 4548 Code* FindFirstCode(); |
4544 void FindAllCode(CodeHandleList* code_list, int length); | 4549 void FindAllCode(CodeHandleList* code_list, int length); |
4545 | 4550 |
4546 class ExtraICStateStrictMode: public BitField<StrictModeFlag, 0, 1> {}; | 4551 class ExtraICStateStrictMode: public BitField<StrictModeFlag, 0, 1> {}; |
4547 class ExtraICStateKeyedAccessStoreMode: | 4552 class ExtraICStateKeyedAccessStoreMode: |
4548 public BitField<KeyedAccessStoreMode, 1, 4> {}; // NOLINT | 4553 public BitField<KeyedAccessStoreMode, 1, 4> {}; // NOLINT |
4549 | 4554 |
| 4555 class ExtraICStateStubHolder: public BitField<StubHolder, 0, 1> {}; |
| 4556 |
4550 static inline StrictModeFlag GetStrictMode(ExtraICState extra_ic_state) { | 4557 static inline StrictModeFlag GetStrictMode(ExtraICState extra_ic_state) { |
4551 return ExtraICStateStrictMode::decode(extra_ic_state); | 4558 return ExtraICStateStrictMode::decode(extra_ic_state); |
4552 } | 4559 } |
4553 | 4560 |
4554 static inline KeyedAccessStoreMode GetKeyedAccessStoreMode( | 4561 static inline KeyedAccessStoreMode GetKeyedAccessStoreMode( |
4555 ExtraICState extra_ic_state) { | 4562 ExtraICState extra_ic_state) { |
4556 return ExtraICStateKeyedAccessStoreMode::decode(extra_ic_state); | 4563 return ExtraICStateKeyedAccessStoreMode::decode(extra_ic_state); |
4557 } | 4564 } |
4558 | 4565 |
4559 static inline ExtraICState ComputeExtraICState( | 4566 static inline ExtraICState ComputeExtraICState( |
4560 KeyedAccessStoreMode store_mode, | 4567 KeyedAccessStoreMode store_mode, |
4561 StrictModeFlag strict_mode) { | 4568 StrictModeFlag strict_mode) { |
4562 return ExtraICStateKeyedAccessStoreMode::encode(store_mode) | | 4569 return ExtraICStateKeyedAccessStoreMode::encode(store_mode) | |
4563 ExtraICStateStrictMode::encode(strict_mode); | 4570 ExtraICStateStrictMode::encode(strict_mode); |
4564 } | 4571 } |
4565 | 4572 |
| 4573 static inline ExtraICState ComputeExtraICState(StubHolder stub_holder) { |
| 4574 return ExtraICStateStubHolder::encode(stub_holder); |
| 4575 } |
| 4576 |
4566 // Flags operations. | 4577 // Flags operations. |
4567 static inline Flags ComputeFlags( | 4578 static inline Flags ComputeFlags( |
4568 Kind kind, | 4579 Kind kind, |
4569 InlineCacheState ic_state = UNINITIALIZED, | 4580 InlineCacheState ic_state = UNINITIALIZED, |
4570 ExtraICState extra_ic_state = kNoExtraICState, | 4581 ExtraICState extra_ic_state = kNoExtraICState, |
4571 StubType type = NORMAL, | 4582 StubType type = NORMAL, |
4572 int argc = -1, | 4583 int argc = -1, |
4573 InlineCacheHolderFlag holder = OWN_MAP); | 4584 InlineCacheHolderFlag holder = OWN_MAP); |
4574 | 4585 |
4575 static inline Flags ComputeMonomorphicFlags( | 4586 static inline Flags ComputeMonomorphicFlags( |
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9297 } else { | 9308 } else { |
9298 value &= ~(1 << bit_position); | 9309 value &= ~(1 << bit_position); |
9299 } | 9310 } |
9300 return value; | 9311 return value; |
9301 } | 9312 } |
9302 }; | 9313 }; |
9303 | 9314 |
9304 } } // namespace v8::internal | 9315 } } // namespace v8::internal |
9305 | 9316 |
9306 #endif // V8_OBJECTS_H_ | 9317 #endif // V8_OBJECTS_H_ |
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