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/*===---- mm_malloc.h - Allocating and Freeing Aligned Memory Blocks -------===
*
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
* See https://llvm.org/LICENSE.txt for license information.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*
*===-----------------------------------------------------------------------===
*/
#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__, __alloc_size__(1),
__alloc_align__(2)))
_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)
{
#if defined(__MINGW32__)
__mingw_aligned_free(__p);
#elif defined(_WIN32)
_aligned_free(__p);
#else
free(__p);
#endif
}
#endif
#endif /* __MM_MALLOC_H */