tree-pretty-print.c (dump_generic_node): Print parentheses when operands have the same priority.

	* tree-pretty-print.c (dump_generic_node): Print parentheses when
	operands have the same priority.

From-SVN: r120648

gcc/ChangeLog

+2007-01-10  Ian Lance Taylor  <iant@google.com>
+
+	* tree-pretty-print.c (dump_generic_node): Print parentheses when
+	operands have the same priority.
+
 2007-01-10  Tom Tromey  <tromey@redhat.com>
 
 	* fold-const.c (fold_truthop): Don't check can_use_bit_fields_p.

gcc/tree-pretty-print.c

 /* Pretty formatting of GENERIC trees in C syntax.
-   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 
+   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
    Free Software Foundation, Inc.
    Adapted from c-pretty-print.c by Diego Novillo <dnovillo@redhat.com>
 
@@ -1259,7 +1259,7 @@ dump_generic_node (pretty_printer *buffer, tree node, int spc, int flags,
 
 	/* When the operands are expressions with less priority,
 	   keep semantics of the tree representation.  */
-	if (op_prio (op0) < op_prio (node))
+	if (op_prio (op0) <= op_prio (node))
 	  {
 	    pp_character (buffer, '(');
 	    dump_generic_node (buffer, op0, spc, flags, false);
@@ -1274,7 +1274,7 @@ dump_generic_node (pretty_printer *buffer, tree node, int spc, int flags,
 
 	/* When the operands are expressions with less priority,
 	   keep semantics of the tree representation.  */
-	if (op_prio (op1) < op_prio (node))
+	if (op_prio (op1) <= op_prio (node))
 	  {
 	    pp_character (buffer, '(');
 	    dump_generic_node (buffer, op1, spc, flags, false);