1 /* Scalar evolution detector. 2 Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc. 3 Contributed by Sebastian Pop <s.pop@laposte.net> 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 2, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING. If not, write to the Free 19 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 20 02110-1301, USA. */ 21 22 #ifndef GCC_TREE_SCALAR_EVOLUTION_H 23 #define GCC_TREE_SCALAR_EVOLUTION_H 24 25 extern tree number_of_iterations_in_loop (struct loop *); 26 extern tree get_loop_exit_condition (struct loop *); 27 28 extern void scev_initialize (struct loops *loops); 29 extern void scev_reset (void); 30 extern void scev_finalize (void); 31 extern tree analyze_scalar_evolution (struct loop *, tree); 32 extern tree instantiate_parameters (struct loop *, tree); 33 extern void gather_stats_on_scev_database (void); 34 extern void scev_analysis (void); 35 unsigned int scev_const_prop (void); 36 37 extern bool simple_iv (struct loop *, tree, tree, affine_iv *, bool); 38 39 #endif /* GCC_TREE_SCALAR_EVOLUTION_H */ 40