1  /* Copyright (C) 2004-2023 Free Software Foundation, Inc.
       2  
       3     This file is part of GCC.
       4  
       5     GCC is free software; you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation; either version 3, or (at your option)
       8     any later version.
       9  
      10     GCC is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU General Public License for more details.
      14  
      15     Under Section 7 of GPL version 3, you are granted additional
      16     permissions described in the GCC Runtime Library Exception, version
      17     3.1, as published by the Free Software Foundation.
      18  
      19     You should have received a copy of the GNU General Public License and
      20     a copy of the GCC Runtime Library Exception along with this program;
      21     see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      22     <http://www.gnu.org/licenses/>.  */
      23  
      24  #ifndef _MM_MALLOC_H_INCLUDED
      25  #define _MM_MALLOC_H_INCLUDED
      26  
      27  #include <stdlib.h>
      28  
      29  /* We can't depend on <stdlib.h> since the prototype of posix_memalign
      30     may not be visible.  */
      31  #ifndef __cplusplus
      32  extern int posix_memalign (void **, size_t, size_t);
      33  #else
      34  extern "C" int posix_memalign (void **, size_t, size_t) throw ();
      35  #endif
      36  
      37  static __inline void *
      38  _mm_malloc (size_t __size, size_t __alignment)
      39  {
      40    /* PowerPC64 ELF V2 ABI requires quadword alignment.  */
      41    size_t __vec_align = sizeof (__vector float);
      42    /* Linux GLIBC malloc alignment is at least 2 X ptr size.  */
      43    size_t __malloc_align = (sizeof (void *) + sizeof (void *));
      44    void *__ptr;
      45  
      46    if (__alignment == __malloc_align && __alignment == __vec_align)
      47      return malloc (__size);
      48    if (__alignment < __vec_align)
      49      __alignment = __vec_align;
      50    if (posix_memalign (&__ptr, __alignment, __size) == 0)
      51      return __ptr;
      52    else
      53      return NULL;
      54  }
      55  
      56  static __inline void
      57  _mm_free (void * __ptr)
      58  {
      59    free (__ptr);
      60  }
      61  
      62  #endif /* _MM_MALLOC_H_INCLUDED */