assert(mode_is_reference(get_irn_mode(n)));
if (get_opt_sel_based_null_check_elim()) {
/* skip all Sel nodes and Cast's */
assert(mode_is_reference(get_irn_mode(n)));
if (get_opt_sel_based_null_check_elim()) {
/* skip all Sel nodes and Cast's */
if ((pnc == pn_Cmp_Eq || pnc == pn_Cmp_Lg) &&
is_Const(right) && is_Const_null(right)) {
/* for == 0 or != 0 we have some special tools */
if ((pnc == pn_Cmp_Eq || pnc == pn_Cmp_Lg) &&
is_Const(right) && is_Const_null(right)) {
/* for == 0 or != 0 we have some special tools */
if (mode_is_reference(mode)) {
if (value_not_null(left, &dummy)) {
tv = pnc == pn_Cmp_Eq ? tarval_b_false : tarval_b_true;
if (mode_is_reference(mode)) {
if (value_not_null(left, &dummy)) {
tv = pnc == pn_Cmp_Eq ? tarval_b_false : tarval_b_true;