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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
|
Jakob Kummerow
2012/02/22 11:36:06
nit: 2012
| |
| 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 |
| 11 // with the distribution. | 11 // with the distribution. |
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| 417 static const int kInitialLength = 1024; | 417 static const int kInitialLength = 1024; |
| 418 | 418 |
| 419 bool InBitsRange(int value) const { | 419 bool InBitsRange(int value) const { |
| 420 return bits_ != NULL && bits_->length() > value; | 420 return bits_ != NULL && bits_->length() > value; |
| 421 } | 421 } |
| 422 | 422 |
| 423 void EnsureCapacity(int value, Zone* zone) { | 423 void EnsureCapacity(int value, Zone* zone) { |
| 424 if (InBitsRange(value)) return; | 424 if (InBitsRange(value)) return; |
| 425 int new_length = bits_ == NULL ? kInitialLength : bits_->length(); | 425 int new_length = bits_ == NULL ? kInitialLength : bits_->length(); |
| 426 while (new_length <= value) new_length *= 2; | 426 while (new_length <= value) new_length *= 2; |
| 427 BitVector* new_bits = new(zone) BitVector(new_length); | 427 BitVector* new_bits = new(zone) BitVector(new_length, zone); |
| 428 if (bits_ != NULL) new_bits->CopyFrom(*bits_); | 428 if (bits_ != NULL) new_bits->CopyFrom(*bits_); |
| 429 bits_ = new_bits; | 429 bits_ = new_bits; |
| 430 } | 430 } |
| 431 | 431 |
| 432 BitVector* bits_; | 432 BitVector* bits_; |
| 433 }; | 433 }; |
| 434 | 434 |
| 435 | 435 |
| 436 class LAllocator BASE_EMBEDDED { | 436 class LAllocator BASE_EMBEDDED { |
| 437 public: | 437 public: |
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| 631 // Indicates success or failure during register allocation. | 631 // Indicates success or failure during register allocation. |
| 632 bool allocation_ok_; | 632 bool allocation_ok_; |
| 633 | 633 |
| 634 DISALLOW_COPY_AND_ASSIGN(LAllocator); | 634 DISALLOW_COPY_AND_ASSIGN(LAllocator); |
| 635 }; | 635 }; |
| 636 | 636 |
| 637 | 637 |
| 638 } } // namespace v8::internal | 638 } } // namespace v8::internal |
| 639 | 639 |
| 640 #endif // V8_LITHIUM_ALLOCATOR_H_ | 640 #endif // V8_LITHIUM_ALLOCATOR_H_ |
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