| /* Scalar evolution detector. |
| Copyright (C) 2003, 2004, 2005, 2007 Free Software Foundation, Inc. |
| Contributed by Sebastian Pop <s.pop@laposte.net> |
| |
| 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_TREE_SCALAR_EVOLUTION_H |
| #define GCC_TREE_SCALAR_EVOLUTION_H |
| |
| extern tree number_of_latch_executions (struct loop *); |
| extern tree number_of_exit_cond_executions (struct loop *); |
| extern tree get_loop_exit_condition (const struct loop *); |
| |
| extern void scev_initialize (void); |
| extern void scev_reset (void); |
| extern void scev_reset_except_niters (void); |
| extern void scev_finalize (void); |
| extern tree analyze_scalar_evolution (struct loop *, tree); |
| extern tree instantiate_parameters (struct loop *, tree); |
| extern tree resolve_mixers (struct loop *, tree); |
| extern void gather_stats_on_scev_database (void); |
| extern void scev_analysis (void); |
| unsigned int scev_const_prop (void); |
| |
| extern bool simple_iv (struct loop *, tree, tree, affine_iv *, bool); |
| |
| /* Returns the loop of the polynomial chrec CHREC. */ |
| |
| static inline struct loop * |
| get_chrec_loop (const_tree chrec) |
| { |
| return get_loop (CHREC_VARIABLE (chrec)); |
| } |
| |
| #endif /* GCC_TREE_SCALAR_EVOLUTION_H */ |
