+double be_get_reload_costs_on_edge(spill_env_t *env, ir_node *to_spill,
+ ir_node *block, int pos);
+
+typedef struct {
+ unsigned n_spills;
+ unsigned n_reloads;
+ double spill_costs;
+ double reload_costs;
+} be_total_spill_costs_t;
+
+/**
+ * Insert a spill after the definition of the given node if there is a reload that is not dominated by some spill.
+ * This function checks whether there is a reload that is not dominated by some spill for that node.
+ * If so, it inserts a spill right after the definition of the node.
+ * @param env The spill environment.
+ * @param irn The node to check for.
+ */
+void make_spill_locations_dominate_irn(spill_env_t *env, ir_node *irn);
+
+/**
+ * Collect spill/reload cost statistics for a graph.
+ * @param birg The backend graph.
+ * @param costs A struct which will be filled with the costs.
+ */
+void be_get_total_spill_costs(be_irg_t *birg, be_total_spill_costs_t *costs);
+
+/**
+ * Check, if a node is rematerializable.
+ * @param env The spill env.
+
+ */
+int be_is_rematerializable(spill_env_t *env, const ir_node *to_remat, const ir_node *before);