+void be_add_reload(spill_env_t *senv, ir_node *to_spill, ir_node *before);
+
+void be_add_reload_on_edge(spill_env_t *senv, ir_node *to_spill, ir_node *bl, int pos);
+
+void be_insert_spills_reloads(spill_env_t *senv);
+
+/**
+ * Marks a phi-node for spilling. So when reloading from this phi-node, not
+ * only its value but the whole phi will be spilled.
+ * This might place be_Copy nodes in predecessor blocks.
+ */
+void be_spill_phi(spill_env_t *env, ir_node *node);
+
+/**
+ * Places the necessary copies for the spilled phis in the graph
+ * This has to be done once before be_insert_spill_reloads, after
+ * all phis to spill have been marked with be_spill_phi.
+ */
+void be_place_copies(spill_env_t *env);