1 /* Header file for High-level loop manipulation functions. 2 Copyright (C) 2013-2016 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)(struct loop *, void *); 24 25 extern void create_iv (tree, tree, tree, struct loop *, gimple_stmt_iterator *, 26 bool, tree *, tree *); 27 extern void rewrite_into_loop_closed_ssa (bitmap, unsigned); 28 extern void rewrite_virtuals_into_loop_closed_ssa (struct loop *); 29 extern void verify_loop_closed_ssa (bool); 30 31 static inline void 32 checking_verify_loop_closed_ssa (bool verify_ssa_p) 33 { 34 if (flag_checking) 35 verify_loop_closed_ssa (verify_ssa_p); 36 } 37 38 extern basic_block split_loop_exit_edge (edge); 39 extern basic_block ip_end_pos (struct loop *); 40 extern basic_block ip_normal_pos (struct loop *); 41 extern void standard_iv_increment_position (struct loop *, 42 gimple_stmt_iterator *, bool *); 43 extern bool gimple_duplicate_loop_to_header_edge (struct loop *, edge, 44 unsigned int, sbitmap, 45 edge, vec<edge> *, 46 int); 47 extern bool can_unroll_loop_p (struct loop *loop, unsigned factor, 48 struct tree_niter_desc *niter); 49 extern void tree_transform_and_unroll_loop (struct loop *, unsigned, 50 edge, struct tree_niter_desc *, 51 transform_callback, void *); 52 extern void tree_unroll_loop (struct loop *, unsigned, 53 edge, struct tree_niter_desc *); 54 extern tree canonicalize_loop_ivs (struct loop *, tree *, bool); 55 56 57 58 #endif /* GCC_TREE_SSA_LOOP_MANIP_H */ 59