Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

/*===---- 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 */