X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbelistsched.h;h=49658c1857077eb00702688320a583ce0d72d004;hb=f804d333c7b5459c3c1a6bfc188ecdc54346be73;hp=8e15ba09866f36750d4b951a092e1f14c1741fa5;hpb=8e0086dfdf3c7706b8bc4ee0e54097b4ed63d1e7;p=libfirm

diff --git a/ir/be/belistsched.h b/ir/be/belistsched.h
index 8e15ba098..49658c185 100644
--- a/ir/be/belistsched.h
+++ b/ir/be/belistsched.h
@@ -14,35 +14,40 @@
 #include "pmap.h"
 #include "list.h"
 
+struct _arch_isa_t;
+
+typedef struct _list_sched_selector_t list_sched_selector_t;
+
 /**
  * A selector interface which is used by the list schedule framework.
  * You can implement your own list scheduler by implementing these
  * functions.
  */
-typedef struct _list_sched_selector_t {
+struct _list_sched_selector_t {
+
 	/**
 	 * Called before a graph is being scheduled.
+	 * @param isa The isa.
 	 * @param irg The graph.
 	 * @return The environment pointer that is passed to all other
 	 * functions in this struct.
 	 */
-	void *(*init_graph)(ir_graph *irg);
+	void *(*init_graph)(const list_sched_selector_t *vtab, const struct _arch_isa_t *isa, ir_graph *irg);
 
 	/**
 	 * Called before scheduling starts on a block.
-	 * @param env The environment.
+	 * @param graph_env The environment.
 	 * @param block The block which is to be scheduled.
 	 * @return A per-block pointer that is additionally passed to select.
 	 */
-	void *(*init_block)(void *env, ir_node *block);
+	void *(*init_block)(void *graph_env, ir_node *block);
 
 	/**
 	 * The selection function.
 	 * It picks one node out of the ready list to be scheduled next.
 	 * The function does not have to delete the node from the ready set.
 	 *
-	 * @param env Some private information as returned by init_graph().
-	 * @return block_env Some provate information as returned by init_block().
+	 * @return block_env Some private information as returned by init_block().
 	 * @param sched_head The schedule so far.
 	 * @param curr_time The current time step which the picked node
 	 * will be assigned to.
@@ -50,25 +55,30 @@ typedef struct _list_sched_selector_t {
 	 * nodes.
 	 * @return The chosen node.
 	 */
-	ir_node *(*select)(void *env, void *block_env,
-			const struct list_head *sched_head,
-			int curr_time, pset *ready_set);
+	ir_node *(*select)(void *block_env, pset *ready_set);
+
+	/**
+	 * This function decides, if a node should appear in a schedule.
+	 * @param block_env The block environment.
+	 * @param irn       The node.
+	 * @return 1, if the node should be scheduled, 0 if not.
+	 */
+	int (*to_appear_in_schedule)(void *block_env, const ir_node *irn);
 
 	/**
 	 * Called after a block has been scheduled.
 	 * @param env The environment.
-	 * @param block_env The per block environemtn as returned by init_block().
-	 * @param block The block that has been finished.
+	 * @param block_env The per block environment as returned by init_block().
 	 */
-	void (*finish_block)(void *env, void *block_env, ir_node *block);
+	void (*finish_block)(void *block_env);
 
 	/**
 	 * Called after a whole graph has been scheduled.
 	 * @param env The environment.
-	 * @param irg The graph.
 	 */
-	void (*finish_graph)(void *env, ir_graph *irg);
-} list_sched_selector_t;
+	void (*finish_graph)(void *env);
+
+};
 
 
 /**
@@ -76,18 +86,20 @@ typedef struct _list_sched_selector_t {
  */
 extern const list_sched_selector_t *trivial_selector;
 
+/**
+ * A selector that tries to minimize the register pressure.
+ * @note Not really operational yet.
+ */
+extern const list_sched_selector_t *reg_pressure_selector;
+
 /**
  * List schedule a graph.
  * Each block in the graph gets a list head to its link field being the
  * head of the schedule. You can walk this list using the functions in
  * list.h.
+ * @param isa The isa which implements the scheduler.
  * @param irg The graph to schedule.
- * @param sched_obst An obstack to allocate the lists on.
- * @param map Maps each block to a list head giving the schedule.
- * @param select_func A selection function.
  */
-void list_sched(ir_graph *irg, const list_sched_selector_t *select_func);
-
-
+void list_sched(const struct _arch_isa_t *isa, ir_graph *irg);
 
 #endif