#include "firm_types.h"
+/** Needed for MSVC to suporess warnings because it doest NOT handle const right. */
+typedef const ir_node *ir_node_cnst_ptr;
+
/**
* Check, if the value of a node is != 0.
*
* @param confirm if n is confirmed to be != 0, returns
* the the Confirm-node, else NULL
*/
-int value_not_zero(ir_node *n, ir_node **confirm);
+int value_not_zero(const ir_node *n, ir_node_cnst_ptr *confirm);
/**
* Check, if the value of a node cannot represent a NULL pointer.
* @param confirm if n is confirmed to be != NULL, returns
* the the Confirm-node, else NULL
*/
-int value_not_null(ir_node *n, ir_node **confirm);
+int value_not_null(const ir_node *n, ir_node_cnst_ptr *confirm);
/**
* Possible return values of value_classify().
*/
-typedef enum _value_classify_sign {
+typedef enum value_classify_sign {
value_classified_unknown = 0, /**< could not classify */
value_classified_positive = 1, /**< value is positive, i.e. >= 0 */
value_classified_negative = -1 /**< value is negative, i.e. <= 0 if
* @param right the right operand of the Cmp
* @param pnc the compare relation
*/
-tarval *computed_value_Cmp_Confirm(ir_node *cmp, ir_node *left, ir_node *right, pn_Cmp pnc);
+ir_tarval *computed_value_Cmp_Confirm(ir_node *cmp, ir_node *left, ir_node *right, pn_Cmp pnc);
#endif /* FIRM_OPT_CONFIRMS_H */