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