| /* Loop manipulation header. |
| Copyright (C) 2014-2017 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_CFGLOOPMANIP_H |
| #define GCC_CFGLOOPMANIP_H |
| |
| enum |
| { |
| CP_SIMPLE_PREHEADERS = 1, |
| CP_FALLTHRU_PREHEADERS = 2 |
| }; |
| |
| #define DLTHE_FLAG_UPDATE_FREQ 1 /* Update frequencies in |
| duplicate_loop_to_header_edge. */ |
| #define DLTHE_RECORD_COPY_NUMBER 2 /* Record copy number in the aux |
| field of newly create BB. */ |
| #define DLTHE_FLAG_COMPLETTE_PEEL 4 /* Update frequencies expecting |
| a complete peeling. */ |
| extern edge mfb_kj_edge; |
| |
| extern bool remove_path (edge, bool * = NULL, bitmap = NULL); |
| extern void place_new_loop (struct function *, struct loop *); |
| extern void add_loop (struct loop *, struct loop *); |
| extern void scale_loop_frequencies (struct loop *, int, int); |
| extern void scale_loop_profile (struct loop *, int, gcov_type); |
| extern edge create_empty_if_region_on_edge (edge, tree); |
| extern struct loop *create_empty_loop_on_edge (edge, tree, tree, tree, tree, |
| tree *, tree *, struct loop *); |
| extern struct loop *loopify (edge, edge, |
| basic_block, edge, edge, bool, |
| unsigned, unsigned); |
| extern void unloop (struct loop *, bool *, bitmap); |
| extern void copy_loop_info (struct loop *loop, struct loop *target); |
| extern struct loop * duplicate_loop (struct loop *, struct loop *); |
| extern void duplicate_subloops (struct loop *, struct loop *); |
| extern bool can_duplicate_loop_p (const struct loop *loop); |
| extern bool duplicate_loop_to_header_edge (struct loop *, edge, |
| unsigned, sbitmap, edge, |
| vec<edge> *, int); |
| extern bool mfb_keep_just (edge); |
| basic_block create_preheader (struct loop *, int); |
| extern void create_preheaders (int); |
| extern void force_single_succ_latches (void); |
| struct loop * loop_version (struct loop *, void *, |
| basic_block *, unsigned, unsigned, |
| unsigned, unsigned, bool); |
| |
| #endif /* GCC_CFGLOOPMANIP_H */ |