From d65cd734137c0059ec181d33791335c667b3a846 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Christian=20W=C3=BCrdig?=
 <chriswue@ipd.info.uni-karlsruhe.de>
Date: Mon, 4 Dec 2006 15:54:09 +0000
Subject: [PATCH] added ilp scheduler interface

---
 ir/be/beilpsched.h | 103 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)

diff --git a/ir/be/beilpsched.h b/ir/be/beilpsched.h
index 3b8240d2e..277e3372d 100644
--- a/ir/be/beilpsched.h
+++ b/ir/be/beilpsched.h
@@ -3,6 +3,109 @@
 
 #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.
  */
-- 
2.20.1