1 /* Definitions for branch prediction routines in the GNU compiler. 2 Copyright (C) 2001-2013 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_PREDICT_H 21 #define GCC_PREDICT_H 22 23 #define DEF_PREDICTOR(ENUM, NAME, HITRATE, FLAGS) ENUM, 24 enum br_predictor 25 { 26 #include "predict.def" 27 28 /* Upper bound on non-language-specific builtins. */ 29 END_PREDICTORS 30 }; 31 #undef DEF_PREDICTOR 32 enum prediction 33 { 34 NOT_TAKEN, 35 TAKEN 36 }; 37 38 extern void predict_insn_def (rtx, enum br_predictor, enum prediction); 39 extern int counts_to_freqs (void); 40 extern void estimate_bb_frequencies (void); 41 extern const char *predictor_name (enum br_predictor); 42 extern tree build_predict_expr (enum br_predictor, enum prediction); 43 extern void tree_estimate_probability (void); 44 extern void compute_function_frequency (void); 45 extern void rebuild_frequencies (void); 46 47 #endif /* GCC_PREDICT_H */ 48
