Add libatomic as a target library.

[gcc.git] / libatomic / fadd_n.c

diff --git a/libatomic/fadd_n.c b/libatomic/fadd_n.c
new file mode 100644 (file)
index 0000000..5a9cd50
--- /dev/null
+++ b/libatomic/fadd_n.c
@@ -0,0 +1,45 @@
+/* Copyright (C) 2012 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   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>
+
+#define NAME   add
+#define OP(X,Y)        ((X) + (Y))
+
+/* Defer to HAVE_ATOMIC_FETCH_ADD, which some targets implement specially,
+   even if HAVE_ATOMIC_FETCH_OP is not defined.  */
+#if !SIZE(HAVE_ATOMIC_FETCH_OP)
+# undef HAVE_ATOMIC_FETCH_OP_1
+# undef HAVE_ATOMIC_FETCH_OP_2
+# undef HAVE_ATOMIC_FETCH_OP_4
+# undef HAVE_ATOMIC_FETCH_OP_8
+# undef HAVE_ATOMIC_FETCH_OP_16
+# define HAVE_ATOMIC_FETCH_OP_1   HAVE_ATOMIC_FETCH_ADD_1
+# define HAVE_ATOMIC_FETCH_OP_2   HAVE_ATOMIC_FETCH_ADD_2
+# define HAVE_ATOMIC_FETCH_OP_4   HAVE_ATOMIC_FETCH_ADD_4
+# define HAVE_ATOMIC_FETCH_OP_8   HAVE_ATOMIC_FETCH_ADD_8
+# define HAVE_ATOMIC_FETCH_OP_16  HAVE_ATOMIC_FETCH_ADD_16
+#endif
+
+#include "fop_n.c"