clang  10.0.0svn
mm_malloc.h
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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
20 extern int posix_memalign (void **, size_t, size_t);
21 #else
22 extern "C" int posix_memalign (void **, size_t, size_t) throw ();
23 #endif
24 
25 static __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 
40 static __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 */
int posix_memalign(void **__memptr, size_t __alignment, size_t __size)
#define NULL