/* Header file for High-level loop manipulation functions.
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Copyright (C) 2013-2020 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_TREE_SSA_LOOP_MANIP_H
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#define GCC_TREE_SSA_LOOP_MANIP_H
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typedef void (*transform_callback)(class loop *, void *);
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extern void create_iv (tree, tree, tree, class loop *, gimple_stmt_iterator *,
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bool, tree *, tree *);
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extern void rewrite_into_loop_closed_ssa_1 (bitmap, unsigned, int,
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class loop *);
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extern void rewrite_into_loop_closed_ssa (bitmap, unsigned);
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extern void rewrite_virtuals_into_loop_closed_ssa (class loop *);
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extern void verify_loop_closed_ssa (bool, class loop * = NULL);
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static inline void
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checking_verify_loop_closed_ssa (bool verify_ssa_p, class loop *loop = NULL)
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{
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if (flag_checking)
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verify_loop_closed_ssa (verify_ssa_p, loop);
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}
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extern basic_block split_loop_exit_edge (edge, bool = false);
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extern basic_block ip_end_pos (class loop *);
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extern basic_block ip_normal_pos (class loop *);
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extern void standard_iv_increment_position (class loop *,
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gimple_stmt_iterator *, bool *);
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extern bool gimple_duplicate_loop_to_header_edge (class loop *, edge,
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unsigned int, sbitmap,
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edge, vec<edge> *,
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int);
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extern bool can_unroll_loop_p (class loop *loop, unsigned factor,
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class tree_niter_desc *niter);
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extern gcov_type niter_for_unrolled_loop (class loop *, unsigned);
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extern void tree_transform_and_unroll_loop (class loop *, unsigned,
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edge, class tree_niter_desc *,
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transform_callback, void *);
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extern void tree_unroll_loop (class loop *, unsigned,
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edge, class tree_niter_desc *);
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extern tree canonicalize_loop_ivs (class loop *, tree *, bool);
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#endif /* GCC_TREE_SSA_LOOP_MANIP_H */
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