obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 83 insertions, 0 deletions

diff --git a/libgfortran/config/fpu-aix.h b/libgfortran/config/fpu-aix.h
new file mode 100644
index 000000000..7d6f8dfcd
--- /dev/null
+++ b/libgfortran/config/fpu-aix.h
@@ -0,0 +1,83 @@
+/* AIX FPU-related code.
+   Copyright 2005, 2007, 2009 Free Software Foundation, Inc.
+   Contributed by Francois-Xavier Coudert <coudert@clipper.ens.fr>
+
+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/>.  */
+
+
+/* FPU-related code for AIX.  */
+#ifdef HAVE_FPTRAP_H
+#include <fptrap.h>
+#endif
+
+void
+set_fpu (void)
+{
+  fptrap_t mode = 0;
+
+  if (options.fpe & GFC_FPE_INVALID)
+#ifdef TRP_INVALID
+    mode |= TRP_INVALID;
+#else
+    st_printf ("Fortran runtime warning: IEEE 'invalid operation' "
+	       "exception not supported.\n");
+#endif
+
+  if (options.fpe & GFC_FPE_DENORMAL)
+    st_printf ("Fortran runtime warning: IEEE 'denormal number' "
+	       "exception not supported.\n");
+
+  if (options.fpe & GFC_FPE_ZERO)
+#ifdef TRP_DIV_BY_ZERO
+    mode |= TRP_DIV_BY_ZERO;
+#else
+    st_printf ("Fortran runtime warning: IEEE 'division by zero' "
+	       "exception not supported.\n");
+#endif
+
+  if (options.fpe & GFC_FPE_OVERFLOW)
+#ifdef TRP_OVERFLOW
+    mode |= TRP_OVERFLOW;
+#else
+    st_printf ("Fortran runtime warning: IEEE 'overflow' "
+	       "exception not supported.\n");
+#endif
+
+  if (options.fpe & GFC_FPE_UNDERFLOW)
+#ifdef TRP_UNDERFLOW
+    mode |= TRP_UNDERFLOW;
+#else
+    st_printf ("Fortran runtime warning: IEEE 'underflow' "
+	       "exception not supported.\n");
+#endif
+
+  if (options.fpe & GFC_FPE_PRECISION)
+#ifdef TRP_UNDERFLOW
+    mode |= TRP_UNDERFLOW;
+#else
+    st_printf ("Fortran runtime warning: IEEE 'loss of precision' "
+	       "exception not supported.\n");
+#endif
+
+  fp_trap(FP_TRAP_SYNC);
+  fp_enable(mode);
+}