Keep flag added

[libfirm] / ir / be / belistsched.h

diff --git a/ir/be/belistsched.h b/ir/be/belistsched.h
index 9a337cf..49658c1 100644 (file)
--- a/ir/be/belistsched.h
+++ b/ir/be/belistsched.h
@@ -16,12 +16,14 @@
 
 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.
@@ -30,22 +32,21 @@ typedef struct _list_sched_selector_t {
         * @return The environment pointer that is passed to all other
         * functions in this struct.
         */
-       void *(*init_graph)(const struct _arch_isa_t *isa, 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 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
@@ -54,25 +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 environment as returned by init_block().
-        * @param block The block that has been finished.
         */
-       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);
+
+};
 
 
 /**