+ return is_arg_Proj_(node);
+}
+
+int is_x_except_Proj(const ir_node *node)
+{
+ ir_node *pred;
+ if (!is_Proj(node))
+ return false;
+ pred = get_Proj_pred(node);
+ if (!is_fragile_op(pred))
+ return false;
+ return get_Proj_proj(node) == pred->op->pn_x_except;
+}
+
+int is_x_regular_Proj(const ir_node *node)
+{
+ ir_node *pred;
+ if (!is_Proj(node))
+ return false;
+ pred = get_Proj_pred(node);
+ if (!is_fragile_op(pred))
+ return false;
+ return get_Proj_proj(node) == pred->op->pn_x_regular;
+}
+
+void ir_set_throws_exception(ir_node *node, int throws_exception)
+{
+ except_attr *attr = &node->attr.except;
+ assert(is_fragile_op(node));
+ attr->throws_exception = throws_exception;
+}
+
+int ir_throws_exception(const ir_node *node)
+{
+ const except_attr *attr = &node->attr.except;
+ assert(is_fragile_op(node));
+ return attr->throws_exception;