| /* Basic block reordering routines for the GNU compiler. |
| Copyright (C) 2000 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
| License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| /* Structure to hold information about the blocks during reordering. */ |
| typedef struct reorder_block_def |
| { |
| rtx header; |
| rtx footer; |
| basic_block next; |
| basic_block original; |
| |
| /* These fields are used by bb-reorder pass. */ |
| int visited; |
| } *reorder_block_def; |
| |
| #define RBI(BB) ((reorder_block_def) (BB)->aux) |
| |
| extern void cfg_layout_initialize PARAMS ((void)); |
| extern void cfg_layout_finalize PARAMS ((void)); |
| extern bool cfg_layout_can_duplicate_bb_p PARAMS ((basic_block)); |
| extern basic_block cfg_layout_duplicate_bb PARAMS ((basic_block, edge)); |
| extern void scope_to_insns_initialize PARAMS ((void)); |
| extern void scope_to_insns_finalize PARAMS ((void)); |
| extern void cfg_layout_redirect_edge PARAMS ((edge, basic_block)); |