3 files changed, 37 insertions, 25 deletions
diff --git a/indra/llcommon/lldefs.h b/indra/llcommon/lldefs.h
index f3b5ca361f..10e6cb34bf 100644
--- a/indra/llcommon/lldefs.h
+++ b/indra/llcommon/lldefs.h
@@ -242,5 +242,13 @@ inline LLDATATYPE llclampb(const LLDATATYPE& a)
 	return llmin(llmax(a, (LLDATATYPE)0), (LLDATATYPE)255);
 }
 
+template <class LLDATATYPE> 
+inline void llswap(LLDATATYPE& lhs, LLDATATYPE& rhs)
+{
+	LLDATATYPE tmp = lhs;
+	lhs = rhs;
+	rhs = tmp;
+}
+
 #endif // LL_LLDEFS_H
 
diff --git a/indra/llcommon/llmemory.cpp b/indra/llcommon/llmemory.cpp
index 2a8015e26d..5c6ca30cdd 100644
--- a/indra/llcommon/llmemory.cpp
+++ b/indra/llcommon/llmemory.cpp
@@ -73,25 +73,6 @@ void LLMemory::freeReserve()
 	reserveMem = NULL;
 }
 
-void* ll_allocate (size_t size)
-{
-	if (size == 0)
-	{
-		llwarns << "Null allocation" << llendl;
-	}
-	void *p = malloc(size);
-	if (p == NULL)
-	{
-		LLMemory::freeReserve();
-		llerrs << "Out of memory Error" << llendl;
-	}
-	return p;
-}
-
-void ll_release (void *p)
-{
-	free(p);
-}
 
 //----------------------------------------------------------------------------
 
diff --git a/indra/llcommon/llmemory.h b/indra/llcommon/llmemory.h
index 1c6f64dd8b..117268cfe7 100644
--- a/indra/llcommon/llmemory.h
+++ b/indra/llcommon/llmemory.h
@@ -32,14 +32,37 @@
 #ifndef LLMEMORY_H
 #define LLMEMORY_H
 
+#include <stdlib.h>
 
+inline void* ll_aligned_malloc_16(size_t size) // returned hunk MUST be freed with ll_aligned_free().
+{
+#if defined(LL_WINDOWS)
+	return _mm_malloc(size, 16);
+#elif defined(LL_DARWIN)
+	return malloc(size); // default osx malloc is 16 byte aligned.
+#else
+	void *rtn;
+	if (LL_LIKELY(0 == posix_memalign(&rtn, 16, size)))
+	{
+		return rtn;
+	}
+	else // bad alignment requested, or out of memory
+	{
+		return NULL;
+	}
+#endif
+}
 
-extern S32 gTotalDAlloc;
-extern S32 gTotalDAUse;
-extern S32 gDACount;
-
-extern void* ll_allocate (size_t size);
-extern void ll_release (void *p);
+inline void ll_aligned_free_16(void *p)
+{
+#if defined(LL_WINDOWS)
+	_mm_free(p);
+#elif defined(LL_DARWIN)
+	return free(p);
+#else
+	free(p); // posix_memalign() is compatible with heap deallocator
+#endif
+}
 
 class LL_COMMON_API LLMemory
 {