clang/lib/Headers/ppc_wrappers/mm_malloc.h

   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(__powerpc64__) &&                                                  \
  14     (defined(__linux__) || defined(__FreeBSD__) || defined(_AIX))
  15
  16 #include <stdlib.h>
  17
  18 /* We can't depend on <stdlib.h> since the prototype of posix_memalign
  19    may not be visible.  */
  20 #ifndef __cplusplus
  21 extern int posix_memalign(void **, size_t, size_t);
  22 #else
  23 extern "C" int posix_memalign(void **, size_t, size_t);
  24 #endif
  25
  26 static __inline void *_mm_malloc(size_t __size, size_t __alignment) {
  27   /* PowerPC64 ELF V2 ABI requires quadword alignment.  */
  28   size_t __vec_align = sizeof(__vector float);
  29   void *__ptr;
  30
  31   if (__alignment < __vec_align)
  32     __alignment = __vec_align;
  33   if (posix_memalign(&__ptr, __alignment, __size) == 0)
  34     return __ptr;
  35   else
  36     return NULL;
  37 }
  38
  39 static __inline void _mm_free(void *__ptr) { free(__ptr); }
  40
  41 #else
  42 #include_next <mm_malloc.h>
  43 #endif
  44
  45 #endif /* _MM_MALLOC_H_INCLUDED */