2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Spillslot coalescer.
23 * @author Matthias Braun
27 #ifndef FIRM_BE_BESPILLSLOTS_H
28 #define FIRM_BE_BESPILLSLOTS_H
32 typedef struct _be_fec_env_t be_fec_env_t;
35 * Initializes a new frame entity coalescer environment
37 be_fec_env_t *be_new_frame_entity_coalescer(be_irg_t *birg);
40 * Frees a frame entity coalescer environment
42 void be_free_frame_entity_coalescer(be_fec_env_t *env);
45 * Adds a node that needs a frame entity and consumes memory (Reload nodes). The
46 * memory edges are followed to find memory-phis and the entities that produce
49 * @param env The frame entity coalescer environment
50 * @param node The node that uses the frame entity
51 * @param mode The mode of the needed spillslot
52 * @param align The alignment of the needed spillslot
54 void be_node_needs_frame_entity(be_fec_env_t *env, ir_node *node,
55 const ir_mode *mode, int alignment);
58 * Assigned frame entities to all the nodes added by be_node_needs_frame_entity.
59 * Adds memory perms where needed.
61 void be_assign_entities(be_fec_env_t *env);
63 //-------------------------------------------------------------------
65 //-------------------------------------------------------------------
68 * Assigns frame entities to all spill nodes in the irg.
69 * Coalesces spillslots and minimizes the number of memcopies induced by
72 void be_coalesce_spillslots(be_irg_t *birg);
74 #endif /* FIRM_BE_BESPILLSLOTS_H */