re PR libfortran/38199 (missed optimization: I/O performance)

2012-04-17  Tobias Burnus  <burnus@net-b.de>

        PR libfortran/38199
        PR libfortran/50673
        * io/unit.c (get_internal_unit): Properly check for the presence
        of the format string.

From-SVN: r186548

libgfortran/ChangeLog

+2012-04-17  Tobias Burnus  <burnus@net-b.de>
+
+	PR libfortran/38199
+	PR libfortran/50673
+	* io/unit.c (get_internal_unit): Properly check for the presence
+	of the format string.
+
 2012-04-15  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR libfortran/38199

libgfortran/io/unit.c

@@ -419,7 +419,7 @@ get_internal_unit (st_parameter_dt *dtp)
     {
       /* If we are not processing an array, adjust the unit record length not
 	 to include trailing blanks for list-formatted reads.  */
-      if (dtp->u.p.mode == READING && dtp->format == NULL)
+      if (dtp->u.p.mode == READING && !(dtp->common.flags & IOPARM_DT_HAS_FORMAT))
 	{
 	  if (dtp->common.unit == 0)
 	    {