diff options
| -rw-r--r-- | lib/ExecutionEngine/JIT/JITMemoryManager.cpp | 37 |
1 files changed, 17 insertions, 20 deletions
diff --git a/lib/ExecutionEngine/JIT/JITMemoryManager.cpp b/lib/ExecutionEngine/JIT/JITMemoryManager.cpp index 6ae738373c..1cfed2803b 100644 --- a/lib/ExecutionEngine/JIT/JITMemoryManager.cpp +++ b/lib/ExecutionEngine/JIT/JITMemoryManager.cpp @@ -285,7 +285,21 @@ namespace { /// middle of emitting a function, and we don't know how large the function we /// are emitting is. class DefaultJITMemoryManager : public JITMemoryManager { + public: + /// DefaultCodeSlabSize - When we have to go map more memory, we allocate at + /// least this much unless more is requested. Currently, in 512k slabs. + static const size_t DefaultCodeSlabSize = 512 * 1024; + + /// DefaultSlabSize - Allocate globals and stubs into slabs of 64K (probably + /// 16 pages) unless we get an allocation above SizeThreshold. + static const size_t DefaultSlabSize = 64 * 1024; + /// DefaultSizeThreshold - For any allocation larger than 16K (probably + /// 4 pages), we should allocate a separate slab to avoid wasted space at + /// the end of a normal slab. + static const size_t DefaultSizeThreshold = 16 * 1024; + + private: // Whether to poison freed memory. bool PoisonMemory; @@ -318,18 +332,6 @@ namespace { /// last slab it allocated, so that subsequent allocations follow it. sys::MemoryBlock allocateNewSlab(size_t size); - /// DefaultCodeSlabSize - When we have to go map more memory, we allocate at - /// least this much unless more is requested. - static const size_t DefaultCodeSlabSize; - - /// DefaultSlabSize - Allocate data into slabs of this size unless we get - /// an allocation above SizeThreshold. - static const size_t DefaultSlabSize; - - /// DefaultSizeThreshold - For any allocation larger than this threshold, we - /// should allocate a separate slab. - static const size_t DefaultSizeThreshold; - /// getPointerToNamedFunction - This method returns the address of the /// specified function by using the dlsym function call. void *getPointerToNamedFunction(const std::string &Name, @@ -902,11 +904,6 @@ JITMemoryManager *JITMemoryManager::CreateDefaultMemManager() { return new DefaultJITMemoryManager(); } -// Allocate memory for code in 512K slabs. -const size_t DefaultJITMemoryManager::DefaultCodeSlabSize = 512 * 1024; - -// Allocate globals and stubs in slabs of 64K. (probably 16 pages) -const size_t DefaultJITMemoryManager::DefaultSlabSize = 64 * 1024; - -// Waste at most 16K at the end of each bump slab. (probably 4 pages) -const size_t DefaultJITMemoryManager::DefaultSizeThreshold = 16 * 1024; +const size_t DefaultJITMemoryManager::DefaultCodeSlabSize; +const size_t DefaultJITMemoryManager::DefaultSlabSize; +const size_t DefaultJITMemoryManager::DefaultSizeThreshold; |