1 /* Header file for High-level loop manipulation functions. 2 Copyright (C) 2013-2021 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it under 7 the terms of the GNU General Public License as published by the Free 8 Software Foundation; either version 3, or (at your option) any later 9 version. 10 11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12 WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20 #ifndef GCC_TREE_SSA_LOOP_MANIP_H 21 #define GCC_TREE_SSA_LOOP_MANIP_H 22 23 typedef void (*transform_callback)(class loop *, void *); 24 25 extern void create_iv (tree, tree, tree, class loop *, gimple_stmt_iterator *, 26 bool, tree *, tree *); 27 extern void rewrite_into_loop_closed_ssa_1 (bitmap, unsigned, int, 28 class loop *); 29 extern void rewrite_into_loop_closed_ssa (bitmap, unsigned); 30 extern void rewrite_virtuals_into_loop_closed_ssa (class loop *); 31 extern void verify_loop_closed_ssa (bool, class loop * = NULL); 32 33 static inline void 34 checking_verify_loop_closed_ssa (bool verify_ssa_p, class loop *loop = NULL) 35 { 36 if (flag_checking) 37 verify_loop_closed_ssa (verify_ssa_p, loop); 38 } 39 40 extern basic_block split_loop_exit_edge (edge, bool = false); 41 extern basic_block ip_end_pos (class loop *); 42 extern basic_block ip_normal_pos (class loop *); 43 extern void standard_iv_increment_position (class loop *, 44 gimple_stmt_iterator *, bool *); 45 extern bool gimple_duplicate_loop_to_header_edge (class loop *, edge, 46 unsigned int, sbitmap, 47 edge, vec<edge> *, 48 int); 49 extern bool can_unroll_loop_p (class loop *loop, unsigned factor, 50 class tree_niter_desc *niter); 51 extern gcov_type niter_for_unrolled_loop (class loop *, unsigned); 52 extern void tree_transform_and_unroll_loop (class loop *, unsigned, 53 edge, class tree_niter_desc *, 54 transform_callback, void *); 55 extern void tree_unroll_loop (class loop *, unsigned, 56 edge, class tree_niter_desc *); 57 extern tree canonicalize_loop_ivs (class loop *, tree *, bool); 58 extern unsigned int loop_invariant_motion_in_fun (function *, bool); 59 60 61 #endif /* GCC_TREE_SSA_LOOP_MANIP_H */ 62