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148bd232 | 1 | /* Definitions for branch prediction routines in the GNU compiler. |
0ba508e4 | 2 | Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc. |
13488c51 | 3 | |
f12b58b3 | 4 | This file is part of GCC. |
13488c51 | 5 | |
f12b58b3 | 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 2, or (at your option) any later | |
9 | version. | |
13488c51 | 10 | |
f12b58b3 | 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. | |
13488c51 | 15 | |
16 | You should have received a copy of the GNU General Public License | |
f12b58b3 | 17 | along with GCC; see the file COPYING. If not, write to the Free |
18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
13488c51 | 20 | |
4ee9c684 | 21 | #ifndef GCC_PREDICT_H |
22 | #define GCC_PREDICT_H | |
23 | ||
eb429644 | 24 | #define DEF_PREDICTOR(ENUM, NAME, HITRATE, FLAGS) ENUM, |
13488c51 | 25 | enum br_predictor |
26 | { | |
27 | #include "predict.def" | |
28 | ||
88b5b080 | 29 | /* Upper bound on non-language-specific builtins. */ |
13488c51 | 30 | END_PREDICTORS |
31 | }; | |
32 | #undef DEF_PREDICTOR | |
33 | enum prediction | |
34 | { | |
35 | NOT_TAKEN, | |
36 | TAKEN | |
37 | }; | |
38 | ||
cd0fe062 | 39 | /* Flags for NOTE_PREDICTION */ |
40 | #define IS_TAKEN 1 /* Predict edges to the block as taken. */ | |
41 | ||
d598ad0d | 42 | extern void predict_insn_def (rtx, enum br_predictor, enum prediction); |
43 | extern void predict_insn (rtx, enum br_predictor, int); | |
ffedd254 | 44 | extern int counts_to_freqs (void); |
13488c51 | 45 | |
4ee9c684 | 46 | #endif /* GCC_PREDICT_H */ |