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/* Basic block reordering routines for the GNU compiler.
   Copyright (C) 2000, 2003, 2004, 2007, 2011 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 3, 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 COPYING3.  If not see
   <http://www.gnu.org/licenses/>.  */
 
#ifndef GCC_CFGLAYOUT_H
#define GCC_CFGLAYOUT_H
 
#include "basic-block.h"
 
extern GTY(()) rtx cfg_layout_function_footer;
extern GTY(()) rtx cfg_layout_function_header;
 
extern void cfg_layout_initialize (unsigned int);
extern void cfg_layout_finalize (void);
extern tree insn_scope (const_rtx);
extern void reemit_insn_block_notes (void);
extern bool can_copy_bbs_p (basic_block *, unsigned);
extern void copy_bbs (basic_block *, unsigned, basic_block *,
		      edge *, unsigned, edge *, struct loop *,
		      basic_block);
extern rtx duplicate_insn_chain (rtx, rtx);
 
#endif /* GCC_CFGLAYOUT_H */