tree.c (substitute_placeholder_in_expr) <tcc_vl_exp>: Minor tweak.

From-SVN: r135591

gcc/ChangeLog

 2008-05-19  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* tree.c (substitute_in_expr) <tcc_vl_exp>: Fix thinko.
+	(substitute_placeholder_in_expr) <tcc_vl_exp>: Minor tweak.
 
 2008-05-19  H.J. Lu  <hongjiu.lu@intel.com>
 

gcc/tree.c

@@ -2778,18 +2778,19 @@ substitute_placeholder_in_expr (tree exp, tree obj)
 	{
 	  tree copy = NULL_TREE;
 	  int i;
-	  int n = TREE_OPERAND_LENGTH (exp);
-	  for (i = 1; i < n; i++)
+
+	  for (i = 1; i < TREE_OPERAND_LENGTH (exp); i++)
 	    {
 	      tree op = TREE_OPERAND (exp, i);
-	      tree newop = SUBSTITUTE_PLACEHOLDER_IN_EXPR (op, obj);
-	      if (newop != op)
+	      tree new_op = SUBSTITUTE_PLACEHOLDER_IN_EXPR (op, obj);
+	      if (new_op != op)
 		{
 		  if (!copy)
 		    copy = copy_node (exp);
-		  TREE_OPERAND (copy, i) = newop;
+		  TREE_OPERAND (copy, i) = new_op;
 		}
 	    }
+
 	  if (copy)
 	    return fold (copy);
 	  else