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1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 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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45 // Initial size of each compilation cache table allocated. | 45 // Initial size of each compilation cache table allocated. |
46 static const int kInitialCacheSize = 64; | 46 static const int kInitialCacheSize = 64; |
47 | 47 |
48 | 48 |
49 CompilationCache::CompilationCache(Isolate* isolate) | 49 CompilationCache::CompilationCache(Isolate* isolate) |
50 : isolate_(isolate), | 50 : isolate_(isolate), |
51 script_(isolate, kScriptGenerations), | 51 script_(isolate, kScriptGenerations), |
52 eval_global_(isolate, kEvalGlobalGenerations), | 52 eval_global_(isolate, kEvalGlobalGenerations), |
53 eval_contextual_(isolate, kEvalContextualGenerations), | 53 eval_contextual_(isolate, kEvalContextualGenerations), |
54 reg_exp_(isolate, kRegExpGenerations), | 54 reg_exp_(isolate, kRegExpGenerations), |
55 enabled_(true), | 55 enabled_(true) { |
56 eager_optimizing_set_(NULL) { | |
57 CompilationSubCache* subcaches[kSubCacheCount] = | 56 CompilationSubCache* subcaches[kSubCacheCount] = |
58 {&script_, &eval_global_, &eval_contextual_, ®_exp_}; | 57 {&script_, &eval_global_, &eval_contextual_, ®_exp_}; |
59 for (int i = 0; i < kSubCacheCount; ++i) { | 58 for (int i = 0; i < kSubCacheCount; ++i) { |
60 subcaches_[i] = subcaches[i]; | 59 subcaches_[i] = subcaches[i]; |
61 } | 60 } |
62 } | 61 } |
63 | 62 |
64 | 63 |
65 CompilationCache::~CompilationCache() { | 64 CompilationCache::~CompilationCache() {} |
66 delete eager_optimizing_set_; | |
67 eager_optimizing_set_ = NULL; | |
68 } | |
69 | 65 |
70 | 66 |
71 static Handle<CompilationCacheTable> AllocateTable(Isolate* isolate, int size) { | 67 static Handle<CompilationCacheTable> AllocateTable(Isolate* isolate, int size) { |
72 CALL_HEAP_FUNCTION(isolate, | 68 CALL_HEAP_FUNCTION(isolate, |
73 CompilationCacheTable::Allocate(size), | 69 CompilationCacheTable::Allocate(size), |
74 CompilationCacheTable); | 70 CompilationCacheTable); |
75 } | 71 } |
76 | 72 |
77 | 73 |
78 Handle<CompilationCacheTable> CompilationSubCache::GetTable(int generation) { | 74 Handle<CompilationCacheTable> CompilationSubCache::GetTable(int generation) { |
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450 JSRegExp::Flags flags, | 446 JSRegExp::Flags flags, |
451 Handle<FixedArray> data) { | 447 Handle<FixedArray> data) { |
452 if (!IsEnabled()) { | 448 if (!IsEnabled()) { |
453 return; | 449 return; |
454 } | 450 } |
455 | 451 |
456 reg_exp_.Put(source, flags, data); | 452 reg_exp_.Put(source, flags, data); |
457 } | 453 } |
458 | 454 |
459 | 455 |
460 static bool SourceHashCompare(void* key1, void* key2) { | |
461 return key1 == key2; | |
462 } | |
463 | |
464 | |
465 HashMap* CompilationCache::EagerOptimizingSet() { | |
466 if (eager_optimizing_set_ == NULL) { | |
467 eager_optimizing_set_ = new HashMap(&SourceHashCompare); | |
468 } | |
469 return eager_optimizing_set_; | |
470 } | |
471 | |
472 | |
473 bool CompilationCache::ShouldOptimizeEagerly(Handle<JSFunction> function) { | |
474 if (FLAG_opt_eagerly) return true; | |
475 uint32_t hash = function->SourceHash(); | |
476 void* key = reinterpret_cast<void*>(hash); | |
477 return EagerOptimizingSet()->Lookup(key, hash, false) != NULL; | |
478 } | |
479 | |
480 | |
481 void CompilationCache::MarkForEagerOptimizing(Handle<JSFunction> function) { | |
482 uint32_t hash = function->SourceHash(); | |
Kasper Lund
2011/06/28 13:49:45
It would be nice if you could get rid of JSFunctio
Vitaly Repeshko
2011/06/29 15:10:33
Removed.
| |
483 void* key = reinterpret_cast<void*>(hash); | |
484 EagerOptimizingSet()->Lookup(key, hash, true); | |
485 } | |
486 | |
487 | |
488 void CompilationCache::MarkForLazyOptimizing(Handle<JSFunction> function) { | |
489 uint32_t hash = function->SourceHash(); | |
490 void* key = reinterpret_cast<void*>(hash); | |
491 EagerOptimizingSet()->Remove(key, hash); | |
492 } | |
493 | |
494 | |
495 void CompilationCache::ResetEagerOptimizingData() { | |
496 HashMap* set = EagerOptimizingSet(); | |
497 if (set->occupancy() > 0) set->Clear(); | |
498 } | |
499 | |
500 | |
501 void CompilationCache::Clear() { | 456 void CompilationCache::Clear() { |
502 for (int i = 0; i < kSubCacheCount; i++) { | 457 for (int i = 0; i < kSubCacheCount; i++) { |
503 subcaches_[i]->Clear(); | 458 subcaches_[i]->Clear(); |
504 } | 459 } |
505 } | 460 } |
506 | 461 |
507 | 462 |
508 void CompilationCache::Iterate(ObjectVisitor* v) { | 463 void CompilationCache::Iterate(ObjectVisitor* v) { |
509 for (int i = 0; i < kSubCacheCount; i++) { | 464 for (int i = 0; i < kSubCacheCount; i++) { |
510 subcaches_[i]->Iterate(v); | 465 subcaches_[i]->Iterate(v); |
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531 } | 486 } |
532 | 487 |
533 | 488 |
534 void CompilationCache::Disable() { | 489 void CompilationCache::Disable() { |
535 enabled_ = false; | 490 enabled_ = false; |
536 Clear(); | 491 Clear(); |
537 } | 492 } |
538 | 493 |
539 | 494 |
540 } } // namespace v8::internal | 495 } } // namespace v8::internal |
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