#include "firm_config.h"
+#include "bemachine.h"
+
+typedef struct _ilp_sched_selector_t ilp_sched_selector_t;
+
+/**
+ * A selector interface which is used by the ILP schedule framework.
+ * These functions provide the ILP scheduler with necessary information
+ * from the backend or they pass back information to the backend about
+ * the state of scheduling.
+ */
+struct _ilp_sched_selector_t {
+
+ /**
+ * This function is called before the scheduling of the irg.
+ * @param self The this pointer.
+ * @param irg The irg being scheduled.
+ * @return An irg scheduling environment.
+ */
+ void *(*init_irg_ilp_schedule)(const void *self, ir_graph *irg);
+
+ /**
+ * This functions is called after an irg has been scheduled.
+ * @param self The this pointer.
+ * @param irg The irg which has been scheduled.
+ * @param irg_env The irg scheduling environment.
+ */
+ void (*finish_irg_ilp_schedule)(const void *self, ir_graph *irg, void *irg_env);
+
+ /**
+ * This function is called before the scheduling of a block starts.
+ * @param self The this pointer.
+ * @param block The block being scheduled.
+ * @return A block scheduling environment.
+ */
+ void *(*init_block_ilp_schedule)(const void *self, ir_node *block);
+
+ /**
+ * This functions is called after a block has been scheduled.
+ * @param self The this pointer.
+ * @param block The block which has been scheduled.
+ * @param block_env The block scheduling environment.
+ */
+ void (*finish_block_ilp_schedule)(const void *self, ir_node *block, void *block_env);
+
+ /**
+ * Calculates the latency of node @p irn.
+ * @param self The this pointer.
+ * @param irn The node.
+ * @param block_env The block scheduling environment.
+ * @return The latency in cycles of node @p irn.
+ */
+ unsigned (*latency)(const void *self, ir_node *irn, void *block_env);
+
+ /**
+ * This function is called after a certain node has been scheduled.
+ * @param self The this pointer.
+ * @param irn The node which has been scheduled.
+ * @param cycle The cycle at which the node is scheduled.
+ * @param block_env The block scheduling environment.
+ */
+ void (*node_scheduled)(const void *self, ir_node *irn, unsigned cycle, void *block_env);
+};
+
+#define BE_ILP_SCHED_CALL(func, self, obj, env) \
+ do { \
+ if ((self)->func) \
+ (self)->func((self), (obj), (env)); \
+ } while (0)
+
+#define BE_ILP_SCHED_CALL2(func, self, obj, obj2, env) \
+ do { \
+ if ((self)->func) \
+ (self)->func((self), (obj), (obj2), (env)); \
+ } while (0)
+
+#define BE_ILP_SCHED_CALL_ENVRET(func, self, obj, defret) \
+ ((self)->func ? (self)->func((self), (obj)) : (defret))
+
+#define BE_ILP_SCHED_CALL_RET(func, self, obj, env, defret) \
+ ((self)->func ? (self)->func((self), (obj), (env)) : (defret))
+
+/**
+ * Convenience macros for all functions.
+ */
+
+#define be_ilp_sched_init_irg_ilp_schedule(self, irg) \
+ BE_ILP_SCHED_CALL_ENVRET(init_irg_ilp_schedule, self, irg, NULL)
+
+#define be_ilp_sched_finish_irg_ilp_schedule(self, irg, irg_env) \
+ BE_ILP_SCHED_CALL(finish_irg_ilp_schedule, self, irg, irg_env)
+
+#define be_ilp_sched_init_block_ilp_schedule(self, block) \
+ BE_ILP_SCHED_CALL_ENVRET(init_block_ilp_schedule, self, block, NULL)
+
+#define be_ilp_sched_finish_block_ilp_schedule(self, block, block_env) \
+ BE_ILP_SCHED_CALL(finish_block_ilp_schedule, self, block, block_env)
+
+#define be_ilp_sched_latency(self, irn, block_env) \
+ BE_ILP_SCHED_CALL_RET(latency, self, irn, block_env, 0)
+
+#define be_ilp_sched_node_scheduled(self, irn, cycle, block_env) \
+ BE_ILP_SCHED_CALL2(node_scheduled, self, irn, cycle, block_env)
+
/**
* Perform ILP scheduling on given birg.
*/