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tree-ssa-loop-niter.h

tree-ssa-loop-niter.h 2.2 KB
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  1. /* Header file for loop interation estimates.
    2. 

  2.    Copyright (C) 2013-2015 Free Software Foundation, Inc.
    3. 

  3. 

  4. This file is part of GCC.
    5. 

  5. 

  6. GCC is free software; you can redistribute it and/or modify it under
    7. 

  7. the terms of the GNU General Public License as published by the Free
    8. 

  8. Software Foundation; either version 3, or (at your option) any later
    9. 

  9. version.
    10. 

  10. 

  11. GCC is distributed in the hope that it will be useful, but WITHOUT ANY
    12. 

  12. WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13. 

  13. FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14. 

  14.  for more details.
    15. 

  15. 

  16. You should have received a copy of the GNU General Public License
    17. 

  17. along with GCC; see the file COPYING3.  If not see
    18. 

  18. <http://www.gnu.org/licenses/>.  */
    19. 

  19. 

  20. #ifndef GCC_TREE_SSA_LOOP_NITER_H
    21. 

  21. #define GCC_TREE_SSA_LOOP_NITER_H
    22. 

  22. 

  23. extern tree expand_simple_operations (tree, tree = NULL);
    24. 

  24. extern bool loop_only_exit_p (const struct loop *, const_edge);
    25. 

  25. extern bool number_of_iterations_exit (struct loop *, edge,
    26. 

  26. 				       struct tree_niter_desc *niter, bool,
    27. 

  27. 				       bool every_iteration = true);
    28. 

  28. extern tree find_loop_niter (struct loop *, edge *);
    29. 

  29. extern bool finite_loop_p (struct loop *);
    30. 

  30. extern tree loop_niter_by_eval (struct loop *, edge);
    31. 

  31. extern tree find_loop_niter_by_eval (struct loop *, edge *);
    32. 

  32. extern bool estimated_loop_iterations (struct loop *, widest_int *);
    33. 

  33. extern HOST_WIDE_INT estimated_loop_iterations_int (struct loop *);
    34. 

  34. extern bool max_loop_iterations (struct loop *, widest_int *);
    35. 

  35. extern HOST_WIDE_INT max_loop_iterations_int (struct loop *);
    36. 

  36. extern HOST_WIDE_INT max_stmt_executions_int (struct loop *);
    37. 

  37. extern HOST_WIDE_INT estimated_stmt_executions_int (struct loop *);
    38. 

  38. extern bool max_stmt_executions (struct loop *, widest_int *);
    39. 

  39. extern bool estimated_stmt_executions (struct loop *, widest_int *);
    40. 

  40. extern void estimate_numbers_of_iterations (void);
    41. 

  41. extern bool stmt_dominates_stmt_p (gimple, gimple);
    42. 

  42. extern bool nowrap_type_p (tree);
    43. 

  43. extern bool scev_probably_wraps_p (tree, tree, gimple, struct loop *, bool);
    44. 

  44. extern void free_numbers_of_iterations_estimates_loop (struct loop *);
    45. 

  45. extern void free_numbers_of_iterations_estimates (void);
    46. 

  46. extern void substitute_in_loop_info (struct loop *, tree, tree);
    47. 

  47. 

  48. #endif /* GCC_TREE_SSA_LOOP_NITER_H */
    49.