64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/* Loop manipulation header.
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Copyright (C) 2014-2023 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_CFGLOOPMANIP_H
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#define GCC_CFGLOOPMANIP_H
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enum
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{
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CP_SIMPLE_PREHEADERS = 1,
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CP_FALLTHRU_PREHEADERS = 2
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};
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#define DLTHE_FLAG_UPDATE_FREQ 1 /* Update frequencies in
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duplicate_loop_to_header_edge. */
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#define DLTHE_RECORD_COPY_NUMBER 2 /* Record copy number in the aux
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field of newly create BB. */
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#define DLTHE_FLAG_COMPLETTE_PEEL 4 /* Update frequencies expecting
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a complete peeling. */
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extern edge mfb_kj_edge;
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extern bool remove_path (edge, bool * = NULL, bitmap = NULL);
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extern void place_new_loop (struct function *, class loop *);
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extern void add_loop (class loop *, class loop *);
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extern void scale_loop_frequencies (class loop *, profile_probability);
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extern void scale_loop_profile (class loop *, profile_probability, gcov_type);
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extern edge create_empty_if_region_on_edge (edge, tree);
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extern class loop *create_empty_loop_on_edge (edge, tree, tree, tree, tree,
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tree *, tree *, class loop *);
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extern void unloop (class loop *, bool *, bitmap);
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extern void copy_loop_info (class loop *loop, class loop *target);
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extern class loop * duplicate_loop (class loop *, class loop *,
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class loop * = NULL);
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extern void duplicate_subloops (class loop *, class loop *);
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extern bool can_duplicate_loop_p (const class loop *loop);
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extern bool
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duplicate_loop_body_to_header_edge (class loop *, edge, unsigned, sbitmap, edge,
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vec<edge> *, int);
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extern bool mfb_keep_just (edge);
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basic_block create_preheader (class loop *, int);
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extern void create_preheaders (int);
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extern void force_single_succ_latches (void);
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class loop * loop_version (class loop *, void *,
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basic_block *,
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profile_probability, profile_probability,
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profile_probability, profile_probability, bool);
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#endif /* GCC_CFGLOOPMANIP_H */
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