1 /* Definitions for branch prediction routines in the GNU compiler. 2 Copyright (C) 2001, 2003 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 2, 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 COPYING. If not, write to the Free 18 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 19 02111-1307, USA. */ 20 21 #define DEF_PREDICTOR(ENUM, NAME, HITRATE, FLAGS) ENUM, 22 enum br_predictor 23 { 24 #include "predict.def" 25 26 /* Upper bound on non-language-specific builtins. */ 27 END_PREDICTORS 28 }; 29 #undef DEF_PREDICTOR 30 enum prediction 31 { 32 NOT_TAKEN, 33 TAKEN 34 }; 35 36 /* Flags for NOTE_PREDICTION */ 37 #define IS_TAKEN 1 /* Predict edges to the block as taken. */ 38 39 extern void predict_insn_def (rtx, enum br_predictor, enum prediction); 40 extern void predict_insn (rtx, enum br_predictor, int); 41 42 /* Avoid unneeded dependency on basic_block.h. */ 43 #ifdef BASIC_BLOCK 44 extern void predict_edge (edge, enum br_predictor, int); 45 extern void predict_edge_def (edge, enum br_predictor, enum prediction); 46 #endif 47