tree-ssa-loop-manip.h

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/* Header file for High-level loop manipulation functions.
   Copyright (C) 2013-2026 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_TREE_SSA_LOOP_MANIP_H
#define GCC_TREE_SSA_LOOP_MANIP_H
 
typedef void (*transform_callback)(class loop *, void *);
 
extern void insert_iv_increment (gimple_stmt_iterator *, bool, gimple_seq);
extern void create_iv (tree, tree_code, tree, tree, class loop *,
                       gimple_stmt_iterator *, bool, tree *, tree *,
                       bool = true);
extern void rewrite_into_loop_closed_ssa (bitmap, unsigned);
extern void verify_loop_closed_ssa (bool, class loop * = NULL);
 
inline void
checking_verify_loop_closed_ssa (bool verify_ssa_p, class loop *loop = NULL)
{
  if (flag_checking)
    verify_loop_closed_ssa (verify_ssa_p, loop);
}
 
extern basic_block split_loop_exit_edge (edge, bool = false);
extern basic_block ip_end_pos (class loop *);
extern basic_block ip_normal_pos (class loop *);
extern void standard_iv_increment_position (class loop *,
                                            gimple_stmt_iterator *, bool *);
extern bool
gimple_duplicate_loop_body_to_header_edge (class loop *, edge, unsigned int,
                                           sbitmap, edge, vec<edge> *, int);
extern bool can_unroll_loop_p (class loop *loop, unsigned factor,
                               class tree_niter_desc *niter);
extern gcov_type niter_for_unrolled_loop (class loop *, unsigned);
extern void tree_transform_and_unroll_loop (class loop *, unsigned,
                                            tree_niter_desc *,
                                            transform_callback, void *);
extern void tree_unroll_loop (class loop *, unsigned, tree_niter_desc *);
extern tree canonicalize_loop_ivs (class loop *, tree *, bool);
extern unsigned int loop_invariant_motion_in_fun (function *, bool);
 
 
#endif /* GCC_TREE_SSA_LOOP_MANIP_H */