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* predict.def: New file. * predict.h: New file. * predict.c: Include predict.h. (predictor_info): New structure and array. (predict_edge, predict_insn): Rewrite; make global. (predict_edge_def, predict_insn_def): New global functions. (dump_prediction, combine_predictions_for_insns): New static functions. (estimate_probability): Change calls to predict_edge to predict_edge_def and calls to predict_insn to predict_insn_def; combine probabilities. (expected_value_to_br_prob): Behave as predictor. * rtl.h (REG_BR_PRED): Update coment. (invert_br_probabilities): New. * jump.c: Include predict.h (duplicate_loop_exit_test): Drop branch prediction notes. (invert_jump): Use invert_br_probabilities. * Makefile.in: Add dependancy on predict.h for jump and predict pass. * ifcvt.c (dead_or_predicable): Use invert_br_probabilities. * combine.c (distribute_notes): Handle BR_PRED. From-SVN: r43115
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) 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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