Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 51 insertions, 0 deletions

diff --git a/gcc-4.9/libgfortran/m4/nearest.m4 b/gcc-4.9/libgfortran/m4/nearest.m4
new file mode 100644
index 000000000..349d41ca1
--- /dev/null
+++ b/gcc-4.9/libgfortran/m4/nearest.m4
@@ -0,0 +1,51 @@
+`/* Implementation of the NEAREST intrinsic
+   Copyright (C) 2003-2014 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran 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.
+
+Libgfortran 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 "libgfortran.h"'
+
+include(`mtype.m4')dnl
+
+mathfunc_macro
+
+`#if defined (HAVE_'real_type`) && 'hasmathfunc(copysign) && hasmathfunc(nextafter)`
+
+extern 'real_type` nearest_r'kind` ('real_type` s, 'real_type` dir);
+export_proto(nearest_r'kind`);
+
+'real_type`
+nearest_r'kind` ('real_type` s, 'real_type` dir)
+{
+  dir = MATHFUNC(copysign) (MATHFUNC(__builtin_inf) (), dir);
+  if (FLT_EVAL_METHOD != 0)
+    {
+      /* ??? Work around glibc bug on x86.  */
+      volatile 'real_type` r = MATHFUNC(nextafter) (s, dir);
+      return r;
+    }
+  else
+    return MATHFUNC(nextafter) (s, dir);
+}
+
+#endif'