* @{
*/
+/** Type of a value range */
enum range_types {
VRP_UNDEFINED, /**< No information could be derived so far */
VRP_RANGE, /**< bottom and top form a range, including both values */
VRP_VARYING /**< information cannot be derived */
};
-/** VRP information */
+/** VRP information for a single node */
typedef struct {
ir_tarval *bits_set; /**< The bits which, by analysis, are
definitely set:
not set:
1 for may be set, 0: definitely not set */
enum range_types range_type; /**< The range represented by range_top, range_bottom */
- ir_tarval *range_bottom;
- ir_tarval *range_top;
+ ir_tarval *range_bottom; /**< lower end of the value range */
+ ir_tarval *range_top; /**< upper end of the value range */
} vrp_attr;
/**
- * Set vrp data on the graph irg
+ * Sets vrp data on the graph irg
* @param irg graph on which to set vrp data
*/
FIRM_API void set_vrp_data(ir_graph *irg);
*/
FIRM_API ir_relation vrp_cmp(const ir_node *left, const ir_node *right);
-/*
- * Return the vrp data for this node
+/**
+ * Returns the vrp data for this node
* Note: only allowed for nodes with an integer mode!
*
* @param n: the node for which to return the vrp information