X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbelistsched.h;h=680cafc5e7df77d31e0fee6548abac93d05ff61f;hb=4d7a9507baf1737297cd4f7fc91eab209fd5d398;hp=8e15ba09866f36750d4b951a092e1f14c1741fa5;hpb=8e0086dfdf3c7706b8bc4ee0e54097b4ed63d1e7;p=libfirm

diff --git a/ir/be/belistsched.h b/ir/be/belistsched.h
index 8e15ba098..680cafc5e 100644
--- a/ir/be/belistsched.h
+++ b/ir/be/belistsched.h
@@ -7,42 +7,45 @@
 #ifndef _FIRM_LIST_SCHED
 #define _FIRM_LIST_SCHED
 
-#include "irgraph.h"
-#include "irnode.h"
+#include "firm_types.h"
 
 #include "pset.h"
 #include "pmap.h"
 #include "list.h"
 
+#include "bearch_t.h"
+
+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 irg The graph.
-	 * @return The environment pointer that is passed to all other
-	 * functions in this struct.
+	 * @param arch_env The architecture environment.
+	 * @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 arch_env_t *arch_env, 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 +53,30 @@ 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 +84,20 @@ 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 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.
+ * @param arch_env The architecture environment.
+ * @param irg      The graph to schedule.
  */
-void list_sched(ir_graph *irg, const list_sched_selector_t *select_func);
-
-
+void list_sched(const arch_env_t *arch_env, ir_graph *irg);
 
-#endif
+#endif /* _FIRM_LIST_SCHED */