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, 57 insertions, 0 deletions

diff --git a/gcc/ada/arit64.c b/gcc/ada/arit64.c
new file mode 100644
index 000000000..0ad03960b
--- /dev/null
+++ b/gcc/ada/arit64.c
@@ -0,0 +1,57 @@
+/****************************************************************************
+ *                                                                          *
+ *                         GNAT COMPILER COMPONENTS                         *
+ *                                                                          *
+ *                             A R I T 6 4 . C                              *
+ *                                                                          *
+ *                          C Implementation File                           *
+ *                                                                          *
+ *         Copyright (C) 2009, Free Software Foundation, Inc.               *
+ *                                                                          *
+ * GNAT is free software;  you can  redistribute it  and/or modify it under *
+ * terms of the  GNU General Public License as published  by the Free Soft- *
+ * ware  Foundation;  either version 3,  or (at your option) any later ver- *
+ * sion.  GNAT is distributed in the hope that it will be useful, but WITH- *
+ * OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY *
+ * or FITNESS FOR A PARTICULAR PURPOSE.                                     *
+ *                                                                          *
+ * As a special exception 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/>.                                          *
+ *                                                                          *
+ * GNAT was originally developed  by the GNAT team at  New York University. *
+ * Extensive contributions were provided by Ada Core Technologies Inc.      *
+ *                                                                          *
+ ****************************************************************************/
+
+extern void __gnat_rcheck_10(char *file, int line)
+  __attribute__ ((__noreturn__));
+
+long long int __gnat_mulv64 (long long int x, long long int y)
+{
+  unsigned neg = (x >= 0) ^ (y >= 0);
+  long long unsigned xa = x >= 0 ? (long long unsigned) x
+                                 : -(long long unsigned) x;
+  long long unsigned ya = y >= 0 ? (long long unsigned) y
+                                 : -(long long unsigned) y;
+  unsigned xhi = (unsigned) (xa >> 32);
+  unsigned yhi = (unsigned) (ya >> 32);
+  unsigned xlo = (unsigned) xa;
+  unsigned ylo = (unsigned) ya;
+  long long unsigned mid
+    = xhi ? (long long unsigned) xhi * (long long unsigned) ylo
+	 : (long long unsigned) yhi * (long long unsigned) xlo;
+  long long unsigned low = (long long unsigned) xlo * (long long unsigned) ylo;
+
+  if ((xhi && yhi) ||  mid + (low  >> 32) > 0x7fffffff + neg)
+    __gnat_rcheck_10 (__FILE__, __LINE__);
+
+  low += ((long long unsigned) (unsigned) mid) << 32;
+
+  return (long long int) (neg ? -low : low);
+}