#include "bearch.h"
typedef struct _spill_env_t spill_env_t;
-typedef int(*decide_irn_t)(const ir_node*, void*);
/**
* Creates a new spill environment.
*
* @param chordal
- * @param is_spilled_phi a function that evaluates a phi node and returns true if it is a spilled phi node
- * @param data context parameter for the is_spilled_phi function
*/
-spill_env_t *be_new_spill_env(const be_chordal_env_t *chordal, decide_irn_t is_spilled_phi, void *data);
-
-/**
- * (re-)sets the is_spilled_phi callback
- */
-void be_set_is_spilled_phi(spill_env_t *env, decide_irn_t is_spilled_phi, void *data);
+spill_env_t *be_new_spill_env(const be_chordal_env_t *chordal);
/**
* Deletes a spill environment.
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, pset *reload_set);
+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);
/**
* Computes the spill offsets for all spill nodes in the irg