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      1  1.1  mrg /* Loop manipulation header.
      2  1.7  mrg    Copyright (C) 2014-2022 Free Software Foundation, Inc.
      3  1.1  mrg 
      4  1.1  mrg This file is part of GCC.
      5  1.1  mrg 
      6  1.1  mrg GCC is free software; you can redistribute it and/or modify it under
      7  1.1  mrg the terms of the GNU General Public License as published by the Free
      8  1.1  mrg Software Foundation; either version 3, or (at your option) any later
      9  1.1  mrg version.
     10  1.1  mrg 
     11  1.1  mrg GCC is distributed in the hope that it will be useful, but WITHOUT ANY
     12  1.1  mrg WARRANTY; without even the implied warranty of MERCHANTABILITY or
     13  1.1  mrg FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     14  1.1  mrg for more details.
     15  1.1  mrg 
     16  1.1  mrg You should have received a copy of the GNU General Public License
     17  1.1  mrg along with GCC; see the file COPYING3.  If not see
     18  1.1  mrg <http://www.gnu.org/licenses/>.  */
     19  1.1  mrg 
     20  1.1  mrg #ifndef GCC_CFGLOOPMANIP_H
     21  1.1  mrg #define GCC_CFGLOOPMANIP_H
     22  1.1  mrg 
     23  1.1  mrg enum
     24  1.1  mrg {
     25  1.1  mrg   CP_SIMPLE_PREHEADERS = 1,
     26  1.1  mrg   CP_FALLTHRU_PREHEADERS = 2
     27  1.1  mrg };
     28  1.1  mrg 
     29  1.1  mrg #define DLTHE_FLAG_UPDATE_FREQ	1	/* Update frequencies in
     30  1.1  mrg 					   duplicate_loop_to_header_edge.  */
     31  1.1  mrg #define DLTHE_RECORD_COPY_NUMBER 2	/* Record copy number in the aux
     32  1.1  mrg 					   field of newly create BB.  */
     33  1.1  mrg #define DLTHE_FLAG_COMPLETTE_PEEL 4	/* Update frequencies expecting
     34  1.1  mrg 					   a complete peeling.  */
     35  1.1  mrg extern edge mfb_kj_edge;
     36  1.1  mrg 
     37  1.3  mrg extern bool remove_path (edge, bool * = NULL, bitmap = NULL);
     38  1.6  mrg extern void place_new_loop (struct function *, class loop *);
     39  1.6  mrg extern void add_loop (class loop *, class loop *);
     40  1.6  mrg extern void scale_loop_frequencies (class loop *, profile_probability);
     41  1.6  mrg extern void scale_loop_profile (class loop *, profile_probability, gcov_type);
     42  1.1  mrg extern edge create_empty_if_region_on_edge (edge, tree);
     43  1.6  mrg extern class loop *create_empty_loop_on_edge (edge, tree, tree, tree, tree,
     44  1.6  mrg 					       tree *, tree *, class loop *);
     45  1.6  mrg extern void unloop (class loop *, bool *, bitmap);
     46  1.6  mrg extern void copy_loop_info (class loop *loop, class loop *target);
     47  1.6  mrg extern class loop * duplicate_loop (class loop *, class loop *,
     48  1.6  mrg 				     class loop * = NULL);
     49  1.6  mrg extern void duplicate_subloops (class loop *, class loop *);
     50  1.6  mrg extern bool can_duplicate_loop_p (const class loop *loop);
     51  1.7  mrg extern bool
     52  1.7  mrg duplicate_loop_body_to_header_edge (class loop *, edge, unsigned, sbitmap, edge,
     53  1.7  mrg 				    vec<edge> *, int);
     54  1.1  mrg extern bool mfb_keep_just (edge);
     55  1.6  mrg basic_block create_preheader (class loop *, int);
     56  1.1  mrg extern void create_preheaders (int);
     57  1.1  mrg extern void force_single_succ_latches (void);
     58  1.6  mrg class loop * loop_version (class loop *, void *,
     59  1.4  mrg 			    basic_block *,
     60  1.4  mrg 			    profile_probability, profile_probability,
     61  1.4  mrg 			    profile_probability, profile_probability, bool);
     62  1.1  mrg 
     63  1.1  mrg #endif /* GCC_CFGLOOPMANIP_H */
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