rs6000.c (rs6000_special_round_type_align): Check for NULL in the chain and remove repeated code.

2004-01-18  Andrew Pinski  <pinskia@physics.uc.edu>

        * config/rs6000/rs6000.c (rs6000_special_round_type_align):
        Check for NULL in the chain and remove repeated code.

From-SVN: r76105

gcc/ChangeLog

+2004-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
+
+	* config/rs6000/rs6000.c (rs6000_special_round_type_align):
+	Check for NULL in the chain and remove repeated code.
+
 2004-01-18  Jan Hubicka  <jh@suse.cz>
 
 	* coverage.c (checksum_string): Rename to ...

gcc/config/rs6000/rs6000.c

@@ -2325,15 +2325,13 @@ unsigned int
 rs6000_special_round_type_align (tree type, int computed, int specified)
 {
   tree field = TYPE_FIELDS (type);
-  if (!field)
-    return MAX (computed, specified);
 
   /* Skip all the static variables only if ABI is greater than
      1 or equal to 0.   */
-  while (TREE_CODE (field) == VAR_DECL)
+  while (field != NULL && TREE_CODE (field) == VAR_DECL)
     field = TREE_CHAIN (field);
 
-  if (field == type || DECL_MODE (field) != DFmode)
+  if (field == NULL || field == type || DECL_MODE (field) != DFmode)
     return MAX (computed, specified);
 
   return MAX (MAX (computed, specified), 64);