134d3a2eaa
* basic-block.h (EDGE_FREQUENCY): New macro. * bb-reorder (fixup_reorder_chain): Set counts and frequencies for new BB/edges. * flow.c (find_sub_basic_blocks): Likewise. (try_crossjump_to_edge): Likewise; use EDGE_FREQUENCY (redirect_edge_and_branch): Use EDGE_FREQUENCY. * predict.c (DEF_PREDICTOR): New argument FLAGS. (HITRATE): New macro. (PRED_FLAG_FIRST_MATCH): New constant. (predictor_info): New field flgags. (combine_predictions_for_insn): Use DS theory to combine probabilities; set the edge probabilities when finished. (estimate_probability): Avoid duplicated matches of LOOP_BRANCH heuristics for nested loops; update comment. * predict.def: Add flags for each prediction, set probabilities according to B&L paper. * predict.h (DEF_PREDICTOR): New argument FLAGS. * profile.c (compute_branch_probabilities): Cleanup way the edge probabilities are computed and REG_BR_PROB notes are dropped; if values does not match, emit error. (init_branch_prob): Do error instead of warning when profile driven feedback is missing or corrupt. From-SVN: r44439
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* This file contains the definitions and documentation for the
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builtins used in the GNU compiler.
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Copyright (C) 2001 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#define DEF_PREDICTOR(ENUM, NAME, HITRATE, FLAGS) ENUM,
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enum br_predictor
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{
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#include "predict.def"
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/* Upper bound on non-language-specific builtins. */
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END_PREDICTORS
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};
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#undef DEF_PREDICTOR
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enum prediction
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{
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NOT_TAKEN,
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TAKEN
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};
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extern void predict_insn_def PARAMS ((rtx, enum br_predictor,
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enum prediction));
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extern void predict_insn PARAMS ((rtx, enum br_predictor, int));
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/* Avoid unneeded dependancy on basic_block.h */
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#ifdef BASIC_BLOCK
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extern void predict_edge PARAMS ((edge, enum br_predictor, int));
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extern void predict_edge_def PARAMS ((edge, enum br_predictor,
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enum prediction));
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#endif
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