libatomic/config/s390/store_n.c

/* Copyright (C) 2018-2023 Free Software Foundation, Inc.

   This file is part of the GNU Atomic Library (libatomic).

   Libatomic is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   Libatomic is distributed in the hope that it will be useful, but WITHOUT ANY
   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   more details.

   Under Section 7 of GPL version 3, you are granted additional
   permissions described in the GCC Runtime Library Exception, version
   3.1, as published by the Free Software Foundation.

   You should have received a copy of the GNU General Public License and
   a copy of the GCC Runtime Library Exception along with this program;
   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
   <http://www.gnu.org/licenses/>.  */

#include <libatomic_i.h>


/* Analog to config/s390/exch_n.c.  */

#if !DONE && N == 16
void
SIZE(libat_store) (UTYPE *mptr, UTYPE newval, int smodel)
{
  if (!((uintptr_t)mptr & 0xf))
    {
      __atomic_store_n ((UTYPE *)__builtin_assume_aligned (mptr, 16), newval,
			__ATOMIC_SEQ_CST);
    }
  else
    {
      UWORD magic;

      pre_seq_barrier (smodel);
      magic = protect_start (mptr);

      *mptr = newval;

      protect_end (mptr, magic);
      post_seq_barrier (smodel);
    }
}
#define DONE 1
#endif /* N == 16 */

#include "../../store_n.c"