/*
- * Author: Matthias Braun
- * Date: 27.7.2006
- * Copyright: (c) Universitaet Karlsruhe
- * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+ * This file is part of libFirm.
+ * Copyright (C) 2012 University of Karlsruhe.
*/
-#ifndef BESPILLSLOTS_H_
-#define BESPILLSLOTS_H_
-#include "bechordal.h"
+/**
+ * @file
+ * @brief Spillslot coalescer.
+ * @author Matthias Braun
+ * @date 27.07.2006
+ */
+#ifndef FIRM_BE_BESPILLSLOTS_H
+#define FIRM_BE_BESPILLSLOTS_H
+
+#include <stdbool.h>
+
+typedef struct be_fec_env_t be_fec_env_t;
+
+/**
+ * Initializes a new frame entity coalescer environment
+ */
+be_fec_env_t *be_new_frame_entity_coalescer(ir_graph *irg);
+
+/**
+ * Frees a frame entity coalescer environment
+ */
+void be_free_frame_entity_coalescer(be_fec_env_t *env);
+
+/**
+ * Adds a node that needs a frame entity and consumes memory (Reload nodes). The
+ * memory edges are followed to find memory-phis and the entities that produce
+ * the memory values.
+ *
+ * @param env The frame entity coalescer environment
+ * @param node The node that uses the frame entity
+ * @param mode The mode of the needed spillslot
+ * @param align The alignment of the needed spillslot
+ */
+void be_node_needs_frame_entity(be_fec_env_t *env, ir_node *node,
+ const ir_mode *mode, int alignment);
+
+typedef void (*set_frame_entity_func)(ir_node *node, ir_entity *entity);
/**
- * Computes the spill offsets for all spill nodes in the irg
+ * Assigned frame entities to all the nodes added by be_node_needs_frame_entity.
+ * Adds memory perms where needed.
*/
-void be_coalesce_spillslots(const be_chordal_env_t *chordal_env, int coalesce_spillslots);
+void be_assign_entities(be_fec_env_t *env, set_frame_entity_func set_frame,
+ bool alloc_entities_at_begin);
#endif