1/* Definitions for branch prediction routines in the GNU compiler. 2 Copyright (C) 2001, 2003, 2004, 2007, 2008 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 3, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16You should have received a copy of the GNU General Public License 17along 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, 24enum br_predictor 25{ 26#include "predict.def" 27 28 /* Upper bound on non-language-specific builtins. */ 29 END_PREDICTORS 30}; 31#undef DEF_PREDICTOR 32enum prediction 33{ 34 NOT_TAKEN, 35 TAKEN 36}; 37 38extern void predict_insn_def (rtx, enum br_predictor, enum prediction); 39extern int counts_to_freqs (void); 40extern void estimate_bb_frequencies (void); 41extern const char *predictor_name (enum br_predictor); 42extern tree build_predict_expr (enum br_predictor, enum prediction); 43extern void tree_estimate_probability (void); 44extern void compute_function_frequency (void); 45 46#endif /* GCC_PREDICT_H */ 47