libatomic/fadd_n.c

   1 /* Copyright (C) 2012-2014 Free Software Foundation, Inc.
   2    Contributed by Richard Henderson <rth@redhat.com>.
   3
   4    This file is part of the GNU Atomic Library (libatomic).
   5
   6    Libatomic is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    Libatomic is distributed in the hope that it will be useful, but WITHOUT ANY
  12    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  13    FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14    more details.
  15
  16    Under Section 7 of GPL version 3, you are granted additional
  17    permissions described in the GCC Runtime Library Exception, version
  18    3.1, as published by the Free Software Foundation.
  19
  20    You should have received a copy of the GNU General Public License and
  21    a copy of the GCC Runtime Library Exception along with this program;
  22    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23    <http://www.gnu.org/licenses/>.  */
  24
  25 #include <libatomic_i.h>
  26
  27 #define NAME    add
  28 #define OP(X,Y) ((X) + (Y))
  29
  30 /* Defer to HAVE_ATOMIC_FETCH_ADD, which some targets implement specially,
  31    even if HAVE_ATOMIC_FETCH_OP is not defined.  */
  32 #if !SIZE(HAVE_ATOMIC_FETCH_OP)
  33 # undef HAVE_ATOMIC_FETCH_OP_1
  34 # undef HAVE_ATOMIC_FETCH_OP_2
  35 # undef HAVE_ATOMIC_FETCH_OP_4
  36 # undef HAVE_ATOMIC_FETCH_OP_8
  37 # undef HAVE_ATOMIC_FETCH_OP_16
  38 # define HAVE_ATOMIC_FETCH_OP_1   HAVE_ATOMIC_FETCH_ADD_1
  39 # define HAVE_ATOMIC_FETCH_OP_2   HAVE_ATOMIC_FETCH_ADD_2
  40 # define HAVE_ATOMIC_FETCH_OP_4   HAVE_ATOMIC_FETCH_ADD_4
  41 # define HAVE_ATOMIC_FETCH_OP_8   HAVE_ATOMIC_FETCH_ADD_8
  42 # define HAVE_ATOMIC_FETCH_OP_16  HAVE_ATOMIC_FETCH_ADD_16
  43 #endif
  44
  45 #include "fop_n.c"