mm_malloc.h revision 360784 
1/*===---- mm_malloc.h - Implementation of _mm_malloc and _mm_free ----------===
2 *
3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 * See https://llvm.org/LICENSE.txt for license information.
5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 *
7 *===-----------------------------------------------------------------------===
8 */
9
10#ifndef _MM_MALLOC_H_INCLUDED
11#define _MM_MALLOC_H_INCLUDED
12
13#if defined(__linux__) && defined(__ppc64__)
14
15#include <stdlib.h>
16
17/* We can't depend on <stdlib.h> since the prototype of posix_memalign
18   may not be visible.  */
19#ifndef __cplusplus
20extern int posix_memalign (void **, size_t, size_t);
21#else
22extern "C" int posix_memalign (void **, size_t, size_t) throw ();
23#endif
24
25static __inline void *
26_mm_malloc (size_t size, size_t alignment)
27{
28  /* PowerPC64 ELF V2 ABI requires quadword alignment.  */
29  size_t vec_align = sizeof (__vector float);
30  void *ptr;
31
32  if (alignment < vec_align)
33    alignment = vec_align;
34  if (posix_memalign (&ptr, alignment, size) == 0)
35    return ptr;
36  else
37    return NULL;
38}
39
40static __inline void
41_mm_free (void * ptr)
42{
43  free (ptr);
44}
45
46#else
47#include_next <mm_malloc.h>
48#endif
49
50#endif /* _MM_MALLOC_H_INCLUDED */
51