* tree.c (save_expr): No longer TREE_READONLY.

From-SVN: r87083

gcc/ChangeLog

 2004-09-04  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
+	* tree.c (save_expr): No longer TREE_READONLY.
+
 	* fold-const.c (operand_equal_p): Remove code to allow null ARG0/1.
 	Define locals macros OP_SAME and OP_SAME_WITH_NULL and use throughout.
 

gcc/tree.c

@@ -1489,7 +1489,6 @@ save_expr (tree expr)
      value was computed on both sides of the jump.  So make sure it isn't
      eliminated as dead.  */
   TREE_SIDE_EFFECTS (t) = 1;
-  TREE_READONLY (t) = 1;
   TREE_INVARIANT (t) = 1;
   return t;
 }