+/**
+ * Optimize a / 1.0 = a.
+ */
+static ir_node *equivalent_node_Quot(ir_node *n) {
+ ir_node *a = get_Quot_left(n);
+ ir_node *b = get_Quot_right(n);
+
+ /* Div is not commutative. */
+ if (classify_tarval(value_of(b)) == TV_CLASSIFY_ONE) { /* Quot(x, 1) == x */
+ /* Turn Quot into a tuple (mem, bad, a) */
+ ir_node *mem = get_Quot_mem(n);
+ turn_into_tuple(n, pn_Quot_max);
+ set_Tuple_pred(n, pn_Quot_M, mem);
+ set_Tuple_pred(n, pn_Quot_X_except, new_Bad()); /* no exception */
+ set_Tuple_pred(n, pn_Quot_res, a);
+ }
+ return n;
+}
+