simplify.c (gfc_simplify_transfer): Zero-initialize the buffer.

* simplify.c (gfc_simplify_transfer): Zero-initialize the
buffer.

From-SVN: r144663

gcc/fortran/ChangeLog

+2009-03-06  Alexandre Oliva <aoliva@redhat.com>
+
+	* simplify.c (gfc_simplify_transfer): Zero-initialize the
+	buffer.
+
 2009-02-27  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/39309

gcc/fortran/simplify.c

@@ -4541,6 +4541,7 @@ gfc_simplify_transfer (gfc_expr *source, gfc_expr *mold, gfc_expr *size)
   /* Allocate the buffer to store the binary version of the source.  */
   buffer_size = MAX (source_size, result_size);
   buffer = (unsigned char*)alloca (buffer_size);
+  memset (buffer, 0, buffer_size);
 
   /* Now write source to the buffer.  */
   gfc_target_encode_expr (source, buffer, buffer_size);