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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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4818 kLastCodeAge = kAfterLastCodeAge - 1, | 4818 kLastCodeAge = kAfterLastCodeAge - 1, |
4819 kCodeAgeCount = kAfterLastCodeAge - 1 | 4819 kCodeAgeCount = kAfterLastCodeAge - 1 |
4820 }; | 4820 }; |
4821 #undef DECLARE_CODE_AGE_ENUM | 4821 #undef DECLARE_CODE_AGE_ENUM |
4822 | 4822 |
4823 // Code aging | 4823 // Code aging |
4824 static void MakeCodeAgeSequenceYoung(byte* sequence); | 4824 static void MakeCodeAgeSequenceYoung(byte* sequence); |
4825 void MakeOlder(MarkingParity); | 4825 void MakeOlder(MarkingParity); |
4826 static bool IsYoungSequence(byte* sequence); | 4826 static bool IsYoungSequence(byte* sequence); |
4827 bool IsOld(); | 4827 bool IsOld(); |
| 4828 int GetAge(); |
4828 | 4829 |
4829 void PrintDeoptLocation(int bailout_id); | 4830 void PrintDeoptLocation(int bailout_id); |
4830 | 4831 |
4831 #ifdef VERIFY_HEAP | 4832 #ifdef VERIFY_HEAP |
4832 void VerifyEmbeddedMapsDependency(); | 4833 void VerifyEmbeddedMapsDependency(); |
4833 #endif | 4834 #endif |
4834 | 4835 |
4835 // Max loop nesting marker used to postpose OSR. We don't take loop | 4836 // Max loop nesting marker used to postpose OSR. We don't take loop |
4836 // nesting that is deeper than 5 levels into account. | 4837 // nesting that is deeper than 5 levels into account. |
4837 static const int kMaxLoopNestingMarker = 6; | 4838 static const int kMaxLoopNestingMarker = 6; |
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4959 | 4960 |
4960 // This constant should be encodable in an ARM instruction. | 4961 // This constant should be encodable in an ARM instruction. |
4961 static const int kFlagsNotUsedInLookup = | 4962 static const int kFlagsNotUsedInLookup = |
4962 TypeField::kMask | CacheHolderField::kMask; | 4963 TypeField::kMask | CacheHolderField::kMask; |
4963 | 4964 |
4964 private: | 4965 private: |
4965 friend class RelocIterator; | 4966 friend class RelocIterator; |
4966 | 4967 |
4967 // Code aging | 4968 // Code aging |
4968 byte* FindCodeAgeSequence(); | 4969 byte* FindCodeAgeSequence(); |
4969 static void GetCodeAgeAndParity(Code* code, Age* age, | 4970 static void GetCodeAgeAndParity(Code* code, Age* age, |
4970 MarkingParity* parity); | 4971 MarkingParity* parity); |
4971 static void GetCodeAgeAndParity(byte* sequence, Age* age, | 4972 static void GetCodeAgeAndParity(byte* sequence, Age* age, |
4972 MarkingParity* parity); | 4973 MarkingParity* parity); |
4973 static Code* GetCodeAgeStub(Age age, MarkingParity parity); | 4974 static Code* GetCodeAgeStub(Age age, MarkingParity parity); |
4974 | 4975 |
4975 // Code aging -- platform-specific | 4976 // Code aging -- platform-specific |
4976 static void PatchPlatformCodeAge(byte* sequence, Age age, | 4977 static void PatchPlatformCodeAge(byte* sequence, Age age, |
4977 MarkingParity parity); | 4978 MarkingParity parity); |
4978 | 4979 |
4979 DISALLOW_IMPLICIT_CONSTRUCTORS(Code); | 4980 DISALLOW_IMPLICIT_CONSTRUCTORS(Code); |
4980 }; | 4981 }; |
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9663 } else { | 9664 } else { |
9664 value &= ~(1 << bit_position); | 9665 value &= ~(1 << bit_position); |
9665 } | 9666 } |
9666 return value; | 9667 return value; |
9667 } | 9668 } |
9668 }; | 9669 }; |
9669 | 9670 |
9670 } } // namespace v8::internal | 9671 } } // namespace v8::internal |
9671 | 9672 |
9672 #endif // V8_OBJECTS_H_ | 9673 #endif // V8_OBJECTS_H_ |
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