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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 */
     51