| Jing Yu | 21b2cba | 2012-04-24 14:08:37 -0700 | [diff] [blame] | 1 | /* Definitions for branch prediction routines in the GNU compiler. |
| 2 | Copyright (C) 2001, 2003, 2004, 2007, 2008, 2010 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GCC. |
| 6 | |
| 7 | GCC is free software; you can redistribute it and/or modify it under |
| 8 | the terms of the GNU General Public License as published by the Free |
| 9 | Software Foundation; either version 3, or (at your option) any later |
| 10 | version. |
| 11 | |
| 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| 13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 15 | for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GCC; see the file COPYING3. If not see |
| 19 | <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #ifndef GCC_PREDICT_H |
| 22 | #define GCC_PREDICT_H |
| 23 | |
| 24 | #define DEF_PREDICTOR(ENUM, NAME, HITRATE, FLAGS) ENUM, |
| 25 | enum br_predictor |
| 26 | { |
| 27 | #include "predict.def" |
| 28 | |
| 29 | /* Upper bound on non-language-specific builtins. */ |
| 30 | END_PREDICTORS |
| 31 | }; |
| 32 | #undef DEF_PREDICTOR |
| 33 | enum prediction |
| 34 | { |
| 35 | NOT_TAKEN, |
| 36 | TAKEN |
| 37 | }; |
| 38 | |
| 39 | extern void predict_insn_def (rtx, enum br_predictor, enum prediction); |
| 40 | extern int counts_to_freqs (void); |
| 41 | extern void estimate_bb_frequencies (void); |
| 42 | extern const char *predictor_name (enum br_predictor); |
| 43 | extern tree build_predict_expr (enum br_predictor, enum prediction); |
| 44 | extern void tree_estimate_probability (void); |
| 45 | extern void compute_function_frequency (void); |
| 46 | extern void rebuild_frequencies (void); |
| 47 | |
| 48 | #endif /* GCC_PREDICT_H */ |