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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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62 TypeFeedbackOracle::TypeFeedbackOracle(Handle<Code> code, | 62 TypeFeedbackOracle::TypeFeedbackOracle(Handle<Code> code, |
63 Handle<Context> global_context) { | 63 Handle<Context> global_context) { |
64 global_context_ = global_context; | 64 global_context_ = global_context; |
65 BuildDictionary(code); | 65 BuildDictionary(code); |
66 ASSERT(reinterpret_cast<Address>(*dictionary_.location()) != kHandleZapValue); | 66 ASSERT(reinterpret_cast<Address>(*dictionary_.location()) != kHandleZapValue); |
67 } | 67 } |
68 | 68 |
69 | 69 |
70 Handle<Object> TypeFeedbackOracle::GetInfo(unsigned ast_id) { | 70 Handle<Object> TypeFeedbackOracle::GetInfo(unsigned ast_id) { |
71 int entry = dictionary_->FindEntry(ast_id); | 71 int entry = dictionary_->FindEntry(ast_id); |
72 return entry != NumberDictionary::kNotFound | 72 return entry != UnseededNumberDictionary::kNotFound |
73 ? Handle<Object>(dictionary_->ValueAt(entry)) | 73 ? Handle<Object>(dictionary_->ValueAt(entry)) |
74 : Isolate::Current()->factory()->undefined_value(); | 74 : Isolate::Current()->factory()->undefined_value(); |
75 } | 75 } |
76 | 76 |
77 | 77 |
78 bool TypeFeedbackOracle::LoadIsMonomorphicNormal(Property* expr) { | 78 bool TypeFeedbackOracle::LoadIsMonomorphicNormal(Property* expr) { |
79 Handle<Object> map_or_code(GetInfo(expr->id())); | 79 Handle<Object> map_or_code(GetInfo(expr->id())); |
80 if (map_or_code->IsMap()) return true; | 80 if (map_or_code->IsMap()) return true; |
81 if (map_or_code->IsCode()) { | 81 if (map_or_code->IsCode()) { |
82 Handle<Code> code = Handle<Code>::cast(map_or_code); | 82 Handle<Code> code = Handle<Code>::cast(map_or_code); |
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463 for (RelocIterator it(*code, mask); !it.done(); it.next()) { | 463 for (RelocIterator it(*code, mask); !it.done(); it.next()) { |
464 infos->Add(*it.rinfo()); | 464 infos->Add(*it.rinfo()); |
465 } | 465 } |
466 } | 466 } |
467 | 467 |
468 | 468 |
469 void TypeFeedbackOracle::CreateDictionary(Handle<Code> code, | 469 void TypeFeedbackOracle::CreateDictionary(Handle<Code> code, |
470 ZoneList<RelocInfo>* infos) { | 470 ZoneList<RelocInfo>* infos) { |
471 DisableAssertNoAllocation allocation_allowed; | 471 DisableAssertNoAllocation allocation_allowed; |
472 byte* old_start = code->instruction_start(); | 472 byte* old_start = code->instruction_start(); |
473 dictionary_ = FACTORY->NewNumberDictionary(infos->length()); | 473 dictionary_ = FACTORY->NewUnseededNumberDictionary(infos->length()); |
474 byte* new_start = code->instruction_start(); | 474 byte* new_start = code->instruction_start(); |
475 RelocateRelocInfos(infos, old_start, new_start); | 475 RelocateRelocInfos(infos, old_start, new_start); |
476 } | 476 } |
477 | 477 |
478 | 478 |
479 void TypeFeedbackOracle::RelocateRelocInfos(ZoneList<RelocInfo>* infos, | 479 void TypeFeedbackOracle::RelocateRelocInfos(ZoneList<RelocInfo>* infos, |
480 byte* old_start, | 480 byte* old_start, |
481 byte* new_start) { | 481 byte* new_start) { |
482 for (int i = 0; i < infos->length(); i++) { | 482 for (int i = 0; i < infos->length(); i++) { |
483 RelocInfo* info = &(*infos)[i]; | 483 RelocInfo* info = &(*infos)[i]; |
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529 SetInfo(ast_id, target); | 529 SetInfo(ast_id, target); |
530 break; | 530 break; |
531 | 531 |
532 default: | 532 default: |
533 break; | 533 break; |
534 } | 534 } |
535 } | 535 } |
536 | 536 |
537 | 537 |
538 void TypeFeedbackOracle::SetInfo(unsigned ast_id, Object* target) { | 538 void TypeFeedbackOracle::SetInfo(unsigned ast_id, Object* target) { |
539 ASSERT(dictionary_->FindEntry(ast_id) == NumberDictionary::kNotFound); | 539 ASSERT(dictionary_->FindEntry(ast_id) == UnseededNumberDictionary::kNotFound); |
540 MaybeObject* maybe_result = dictionary_->AtNumberPut(ast_id, target); | 540 MaybeObject* maybe_result = dictionary_->AtNumberPut(ast_id, target); |
541 USE(maybe_result); | 541 USE(maybe_result); |
542 #ifdef DEBUG | 542 #ifdef DEBUG |
543 Object* result = NULL; | 543 Object* result = NULL; |
544 // Dictionary has been allocated with sufficient size for all elements. | 544 // Dictionary has been allocated with sufficient size for all elements. |
545 ASSERT(maybe_result->ToObject(&result)); | 545 ASSERT(maybe_result->ToObject(&result)); |
546 ASSERT(*dictionary_ == result); | 546 ASSERT(*dictionary_ == result); |
547 #endif | 547 #endif |
548 } | 548 } |
549 | 549 |
550 } } // namespace v8::internal | 550 } } // namespace v8::internal |
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