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/*===---- mm_malloc.h - Allocating and Freeing Aligned Memory Blocks -------===
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*===-----------------------------------------------------------------------===
*/
#ifndef __MM_MALLOC_H
#define __MM_MALLOC_H
#include <stdlib.h>
#ifdef _WIN32
#include <malloc.h>
#else
#ifndef __cplusplus
extern int posix_memalign(void **memptr, size_t alignment, size_t size);
#else
// Some systems (e.g. those with GNU libc) declare posix_memalign with an
// exception specifier. Via an "egregious workaround" in
// Sema::CheckEquivalentExceptionSpec, Clang accepts the following as a valid
// redeclaration of glibc's declaration.
extern "C" int posix_memalign(void **memptr, size_t alignment, size_t size);
#endif
#endif
#if !(defined(_WIN32) && defined(_mm_malloc))
static __inline__ void *__attribute__((__always_inline__, __nodebug__,
__malloc__))
_mm_malloc(size_t size, size_t align)
{
if (align == 1) {
return malloc(size);
}
if (!(align & (align - 1)) && align < sizeof(void *))
align = sizeof(void *);
void *mallocedMemory;
#if defined(__MINGW32__)
mallocedMemory = __mingw_aligned_malloc(size, align);
#elif defined(_WIN32)
mallocedMemory = _aligned_malloc(size, align);
#else
if (posix_memalign(&mallocedMemory, align, size))
return 0;
#endif
return mallocedMemory;
}
static __inline__ void __attribute__((__always_inline__, __nodebug__))
_mm_free(void *p)
{
free(p);
}
#endif
#endif /* __MM_MALLOC_H */
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