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SSE2: Add aligned allocators
--HG-- branch : sse2
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2 changed files with 63 additions and 0 deletions
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@ -328,6 +328,40 @@ typedef unsigned int uint; // at least 32bits (depend of processor)
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#endif // NL_OS_UNIX
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#ifdef NL_COMP_VC
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#define NL_ALIGN(nb) __declspec(align(nb))
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#else
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#define NL_ALIGN(nb) __attribute__((aligned(nb)))
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#endif
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#ifdef NL_COMP_VC
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inline void *aligned_malloc(size_t size, size_t alignment) { return _aligned_malloc(size, alignment); }
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inline void aligned_free(void *ptr) { _aligned_free(ptr); }
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#else
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inline void *aligned_malloc(size_t size, size_t alignment) { return memalign(alignment, size); }
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inline void aligned_free(void *ptr) { free(ptr); }
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#endif /* NL_COMP_ */
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#ifdef NL_HAS_SSE2
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#define NL_DEFAULT_MEMORY_ALIGNMENT 16
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#define NL_ALIGN_SSE2 NL_ALIGN(NL_DEFAULT_MEMORY_ALIGNMENT)
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extern void *operator new(size_t size) throw(std::bad_alloc);
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extern void *operator new[](size_t size) throw(std::bad_alloc);
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extern void operator delete(void *p) throw();
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extern void operator delete[](void *p) throw();
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#else /* NL_HAS_SSE2 */
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#define NL_DEFAULT_MEMORY_ALIGNMENT 4
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#define NL_ALIGN_SSE2(nb)
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#endif /* NL_HAS_SSE2 */
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// CHashMap, CHashSet and CHashMultiMap definitions
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#if defined(_STLPORT_VERSION) // STLport detected
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# include <hash_map>
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@ -71,6 +71,35 @@ extern "C" long _ftol2( double dblSource ) { return _ftol( dblSource ); }
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#endif // NL_OS_WINDOWS
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#ifdef NL_HAS_SSE2
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void *operator new(size_t size) throw(std::bad_alloc)
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{
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void *p = aligned_malloc(size, NL_DEFAULT_MEMORY_ALIGNMENT);
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if (p == NULL) throw std::bad_alloc();
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return p;
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}
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void *operator new[](size_t size) throw(std::bad_alloc)
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{
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void *p = aligned_malloc(size, NL_DEFAULT_MEMORY_ALIGNMENT);
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if (p == NULL) throw std::bad_alloc();
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return p;
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}
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void operator delete(void *p) throw()
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{
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aligned_free(p);
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}
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void operator delete[](void *p) throw()
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{
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aligned_free(p);
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}
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#endif /* NL_HAS_SSE2 */
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#ifdef DEBUG_NEW
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#define new DEBUG_NEW
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#endif
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