/*
- * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
ir_node *be_get_end_of_block_insertion_point(const ir_node *block);
+/**
+ * marks a point until which a node must be spilled
+ */
+void be_add_spill(spill_env_t *senv, ir_node *to_spill, ir_node *before);
+
/**
* Inserts a new entry into the list of reloads to place (the real nodes will
* be created when be_insert_spills_reloads is run). You don't have to
void be_add_reload(spill_env_t *senv, ir_node *to_spill, ir_node *before,
const arch_register_class_t *reload_cls, int allow_remat);
+void be_add_reload2(spill_env_t *senv, ir_node *to_spill, ir_node *before, ir_node *can_spill_after,
+ const arch_register_class_t *reload_cls, int allow_remat);
+
/**
* Add a reload at the end of a block.
* Similar to be_add_reload_on_edge().
*/
-void be_add_reload_at_end(spill_env_t *env, ir_node *to_spill, ir_node *block,
+void be_add_reload_at_end(spill_env_t *env, ir_node *to_spill, const ir_node *block,
const arch_register_class_t *reload_cls,
int allow_remat);
* instructions. The value is weighted by the estimated execution frequency of
* the spill.
*/
-double be_get_spill_costs(spill_env_t *env, ir_node *to_spill, ir_node *after);
+double be_get_spill_costs(spill_env_t *env, ir_node *to_spill, ir_node *before);
/**
* Returns the estimated costs if a node would get reloaded at a specific place
double be_get_reload_costs(spill_env_t *env, ir_node *to_spill,
ir_node *before);
+unsigned be_get_reload_costs_no_weight(spill_env_t *env, const ir_node *to_spill,
+ const ir_node *before);
+
+
/**
* Analog to be_get_reload_costs but returns the cost if the reload would be
* placed "on an edge" between 2 blocks
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);
+
#endif