git://gcc.gnu.org / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| d56a8211 | 1 | /* Basic block reordering routines for the GNU compiler. |
| d329e058 | 2 | Copyright (C) 2000, 2003 Free Software Foundation, Inc. |
| d56a8211 JH |
3 | |
| 4 | This file is part of GCC. | |
| 5 | ||
| 6 | GCC is free software; you can redistribute it and/or modify it | |
| 7 | under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 14 | License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with GCC; see the file COPYING. If not, write to the Free | |
| 18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
| 19 | 02111-1307, USA. */ | |
| 20 | ||
| d56a8211 JH |
21 | /* Structure to hold information about the blocks during reordering. */ |
| 22 | typedef struct reorder_block_def | |
| 23 | { | |
| 969d70ca JH |
24 | rtx header; |
| 25 | rtx footer; | |
| d56a8211 | 26 | basic_block next; |
| 969d70ca | 27 | basic_block original; |
| 3d436d2a ZD |
28 | /* Used by loop copying. */ |
| 29 | basic_block copy; | |
| 30 | int duplicated; | |
| 969d70ca JH |
31 | |
| 32 | /* These fields are used by bb-reorder pass. */ | |
| d56a8211 JH |
33 | int visited; |
| 34 | } *reorder_block_def; | |
| 35 | ||
| 9ee634e3 JH |
36 | extern rtx cfg_layout_function_footer; |
| 37 | ||
| bc35512f | 38 | extern void cfg_layout_initialize (void); |
| d329e058 AJ |
39 | extern void cfg_layout_finalize (void); |
| 40 | extern bool cfg_layout_can_duplicate_bb_p (basic_block); | |
| 41 | extern basic_block cfg_layout_duplicate_bb (basic_block, edge); | |
| 42 | extern void insn_locators_initialize (void); | |
| 43 | extern void reemit_insn_block_notes (void); | |
| 8d28e87d ZD |
44 | extern bool can_copy_bbs_p (basic_block *, unsigned); |
| 45 | extern void copy_bbs (basic_block *, unsigned, basic_block *, | |
| d47cc544 SB |
46 | edge *, unsigned, edge *, struct loop *); |
| 47 | extern void cfg_layout_initialize_rbi (basic_block); | |
| 750054a2 | 48 | extern bool scan_ahead_for_unlikely_executed_note (rtx); |