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Issue 6309012:
* Complete new store buffer on ia32. The store buffer now covers... (Closed)
Base URL: http://v8.googlecode.com/svn/branches/experimental/gc/| OLD | NEW |
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| 1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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 |
| (...skipping 32 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
| 43 public: | 43 public: |
| 44 static inline Address TopAddress(); | 44 static inline Address TopAddress(); |
| 45 | 45 |
| 46 static void Setup(); | 46 static void Setup(); |
| 47 static void TearDown(); | 47 static void TearDown(); |
| 48 | 48 |
| 49 static inline void Mark(Address addr); | 49 static inline void Mark(Address addr); |
| 50 | 50 |
| 51 static const int kStoreBufferOverflowBit = 1 << 16; | 51 static const int kStoreBufferOverflowBit = 1 << 16; |
| 52 static const int kStoreBufferSize = kStoreBufferOverflowBit; | 52 static const int kStoreBufferSize = kStoreBufferOverflowBit; |
| 53 static const int kStoreBufferLength = kStoreBufferSize / sizeof(Address); | |
| 54 static const int kOldStoreBufferLength = kStoreBufferLength * 16; | |
| 53 static const int kHashMapLengthLog2 = 12; | 55 static const int kHashMapLengthLog2 = 12; |
| 54 static const int kHashMapLength = 1 << kHashMapLengthLog2; | 56 static const int kHashMapLength = 1 << kHashMapLengthLog2; |
| 55 | 57 |
| 56 static void Compact(); | 58 static void Compact(); |
| 59 static void GCPrologue(GCType type, GCCallbackFlags flags); | |
| 60 static void GCEpilogue(GCType type, GCCallbackFlags flags); | |
| 61 | |
| 62 static Object*** Start() { return reinterpret_cast<Object***>(old_start_); } | |
| 63 static Object*** Top() { return reinterpret_cast<Object***>(old_top_); } | |
| 64 | |
| 65 static bool must_scan_entire_memory() { return must_scan_entire_memory_; } | |
| 66 static bool old_buffer_is_sorted() { return old_buffer_is_sorted_; } | |
| 67 | |
| 68 // Goes through the store buffer removing pointers to things that have | |
| 69 // been promoted. Rebuilds the store buffer completely if it overflowed. | |
| 70 static void Clean(); | |
|
Vyacheslav Egorov (Chromium)
2011/01/21 18:18:18
Should not be this wrapped into #ifdef DEBUG?
Als
Erik Corry
2011/01/24 13:56:00
Done.
| |
| 71 static void SortUniq(); | |
|
Vyacheslav Egorov (Chromium)
2011/01/21 18:18:18
Better name?
Erik Corry
2011/01/24 13:56:00
I like it.
| |
| 72 static void Verify(); | |
| 57 | 73 |
| 58 private: | 74 private: |
| 75 // The store buffer is divided up into a new buffer that is constantly being | |
| 76 // filled by mutator activity and an old buffer that is filled with the data | |
| 77 // from the new buffer after compression. | |
| 59 static Address* start_; | 78 static Address* start_; |
| 60 static Address* limit_; | 79 static Address* limit_; |
| 80 | |
| 81 static Address* old_start_; | |
| 82 static Address* old_limit_; | |
| 83 static Address* old_top_; | |
| 84 | |
| 85 static bool old_buffer_is_sorted_; | |
| 86 static bool must_scan_entire_memory_; | |
| 87 static bool during_gc_; | |
| 88 | |
| 61 static VirtualMemory* virtual_memory_; | 89 static VirtualMemory* virtual_memory_; |
| 62 static uintptr_t* hash_map_1_; | 90 static uintptr_t* hash_map_1_; |
| 63 static uintptr_t* hash_map_2_; | 91 static uintptr_t* hash_map_2_; |
| 92 | |
| 93 static void CheckForFullBuffer(); | |
| 94 static void Uniq(); | |
| 95 static void ZapHashTables(); | |
| 96 static bool HashTablesAreZapped(); | |
| 64 }; | 97 }; |
| 65 | 98 |
| 66 } } // namespace v8::internal | 99 } } // namespace v8::internal |
| 67 | 100 |
| 68 #endif // V8_WRITE_BARRIER_H_ | 101 #endif // V8_WRITE_BARRIER_H_ |
| OLD | NEW |
