no signed zero exists or < 0 else */
} value_classify;
-
/**
* Check, if the value of a node is != 0.
*
*/
int value_not_zero(ir_node *n);
+/**
+ * Check, if the value of a node cannot represent a NULL pointer.
+ *
+ * - If sel_based_null_check_elim is enabled, all
+ * Sel nodes can be skipped.
+ * - A SymConst(entity) is NEVER a NULL pointer
+ * - Confirms are evaluated
+ *
+ * @param n a node representing the value
+ */
+int value_not_null(ir_node *n);
+
/**
* Check, if the value of a node can be confirmed >= 0 or <= 0,
* If the mode of the value did not honor signed zeros, else
* Return the value of a Cmp if one or both predecessors
* are Confirm nodes.
*
+ * @param cmp the compare node that will be evaluated
* @param left the left operand of the Cmp
* @param right the right operand of the Cmp
+ * @param pnc the compare relation
*/
-tarval *computed_value_Cmp_Confirm(ir_node *left, ir_node *right, pn_Cmp pnc);
+tarval *computed_value_Cmp_Confirm(ir_node *cmp, ir_node *left, ir_node *right, pn_Cmp pnc);
#endif /* _OPT_CONFIRMS_H_ */