mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-02-04 16:10:17 +08:00
13285d512d
PR tree-optimization/34244 * tree-vrp.c (adjust_range_with_scev): Clear scev cache. (record_numbers_of_iterations): New function. (execute_vrp): Cache the numbers of iterations of loops. * tree-scalar-evolution.c (scev_reset_except_niters): New function. (scev_reset): Use scev_reset_except_niters. * tree-scalar-evolution.h (scev_reset_except_niters): Declare. * gcc.dg/tree-ssa/pr34244.c: New test. From-SVN: r130527
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/* 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 */
|