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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/predict.h
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+/* Definitions for branch prediction routines in the GNU compiler.
+ Copyright (C) 2001, 2003, 2004, 2007, 2008, 2010
+ Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_PREDICT_H
+#define GCC_PREDICT_H
+
+#define DEF_PREDICTOR(ENUM, NAME, HITRATE, FLAGS) ENUM,
+enum br_predictor
+{
+#include "predict.def"
+
+ /* Upper bound on non-language-specific builtins. */
+ END_PREDICTORS
+};
+#undef DEF_PREDICTOR
+enum prediction
+{
+ NOT_TAKEN,
+ TAKEN
+};
+
+extern void predict_insn_def (rtx, enum br_predictor, enum prediction);
+extern int counts_to_freqs (void);
+extern void estimate_bb_frequencies (void);
+extern const char *predictor_name (enum br_predictor);
+extern tree build_predict_expr (enum br_predictor, enum prediction);
+extern void tree_estimate_probability (void);
+extern void compute_function_frequency (void);
+extern void rebuild_frequencies (void);
+
+#endif /* GCC_PREDICT_H */