-/**
- * Author: Daniel Grund, Sebastian Hack
+/*
+ * Author: Daniel Grund, Sebastian Hack, Matthias Braun
* Date: 29.09.2005
* Copyright: (c) Universitaet Karlsruhe
* Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
*/
-
#ifndef BESPILL_H_
#define BESPILL_H_
#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_mem_phi a function that evaluates a Phi node
- * @param data context parameter for the is_mem_phi function
*/
-spill_env_t *be_new_spill_env(const be_chordal_env_t *chordal, decide_irn_t is_mem_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);
/**
- * Computes the spill offsets for all spill nodes in the irg
+ * Returns the estimated costs if a node would get reloaded at a specific place
+ * (This looks whether the value already has a spill or if rematerialisation
+ * is possible)
*/
-void be_compute_spill_offsets(be_chordal_env_t *cenv);
+int be_get_reload_costs(spill_env_t *env, ir_node *to_spill, ir_node *before);
+
+int be_get_reload_costs_on_edge(spill_env_t *env, ir_node *to_spill, ir_node *block, int pos);
/**
* Sets the debug module of a spill environment.