- } else if (is_Const(b) && is_Const_null(b)) {
- /* Mux(a CMP 0, 0, a) */
- if (proj_nr == pn_Cmp_Lg || proj_nr == pn_Cmp_Ne) {
- /* Mux(a != 0, 0, a) ==> a */
- n = a;
+ break;
+ }
+
+ /*
+ * Note: normalization puts the constant on the right side,
+ * so we check only one case.
+ */
+ if (cmp_l == t && is_Const(cmp_r) && is_Const_null(cmp_r)) {
+ /* Mux(t CMP 0, X, t) */
+ if (is_Minus(f) && get_Minus_op(f) == t) {
+ /* Mux(t CMP 0, -t, t) */
+ if (proj_nr == pn_Cmp_Eq) {
+ /* Mux(t == 0, -t, t) ==> -t */
+ n = f;