i386: Update SSE <-> integer move costs

[thirdparty/gcc.git] / gcc / predict.h

diff --git a/gcc/predict.h b/gcc/predict.h
index 6c48c3e1d423c9fc1561f2e5c7ac2db866c9a158..c1f2f0307dd678066385b0c48dd534da15cee528 100644 (file)
--- a/gcc/predict.h
+++ b/gcc/predict.h
@@ -1,5 +1,5 @@
 /* Definitions for branch prediction routines in the GNU compiler.
-   Copyright (C) 2001, 2003, 2004, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2001-2019 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -20,6 +20,19 @@ along with GCC; see the file COPYING3.  If not see
 #ifndef GCC_PREDICT_H
 #define GCC_PREDICT_H
 
+#include "profile-count.h"
+
+/* Random guesstimation given names.
+   PROB_VERY_UNLIKELY should be small enough so basic block predicted
+   by it gets below HOT_BB_FREQUENCY_FRACTION.  */
+#define PROB_VERY_UNLIKELY     (REG_BR_PROB_BASE / 2000 - 1)
+#define PROB_EVEN              (REG_BR_PROB_BASE / 2)
+#define PROB_VERY_LIKELY       (REG_BR_PROB_BASE - PROB_VERY_UNLIKELY)
+#define PROB_ALWAYS            (REG_BR_PROB_BASE)
+#define PROB_UNLIKELY           (REG_BR_PROB_BASE / 5 - 1)
+#define PROB_LIKELY             (REG_BR_PROB_BASE - PROB_UNLIKELY)
+#define PROB_UNINITIALIZED      (-1)
+
 #define DEF_PREDICTOR(ENUM, NAME, HITRATE, FLAGS) ENUM,
 enum br_predictor
 {
@@ -35,8 +48,62 @@ enum prediction
    TAKEN
 };
 
-extern void predict_insn_def (rtx, enum br_predictor, enum prediction);
-extern int counts_to_freqs (void);
-extern void estimate_bb_frequencies (void);
+/* In emit-rtl.c.  */
+extern profile_probability split_branch_probability;
+
+extern gcov_type get_hot_bb_threshold (void);
+extern void set_hot_bb_threshold (gcov_type);
+extern bool maybe_hot_count_p (struct function *, profile_count);
+extern bool maybe_hot_bb_p (struct function *, const_basic_block);
+extern bool maybe_hot_edge_p (edge);
+extern bool probably_never_executed_bb_p (struct function *, const_basic_block);
+extern bool probably_never_executed_edge_p (struct function *, edge);
+extern bool optimize_function_for_size_p (struct function *);
+extern bool optimize_function_for_speed_p (struct function *);
+extern optimization_type function_optimization_type (struct function *);
+extern bool optimize_bb_for_size_p (const_basic_block);
+extern bool optimize_bb_for_speed_p (const_basic_block);
+extern optimization_type bb_optimization_type (const_basic_block);
+extern bool optimize_edge_for_size_p (edge);
+extern bool optimize_edge_for_speed_p (edge);
+extern bool optimize_insn_for_size_p (void);
+extern bool optimize_insn_for_speed_p (void);
+extern bool optimize_loop_for_size_p (struct loop *);
+extern bool optimize_loop_for_speed_p (struct loop *);
+extern bool optimize_loop_nest_for_speed_p (struct loop *);
+extern bool optimize_loop_nest_for_size_p (struct loop *);
+extern bool predictable_edge_p (edge);
+extern void rtl_profile_for_bb (basic_block);
+extern void rtl_profile_for_edge (edge);
+extern void default_rtl_profile (void);
+extern bool rtl_predicted_by_p (const_basic_block, enum br_predictor);
+extern bool gimple_predicted_by_p (const_basic_block, enum br_predictor);
+extern bool edge_probability_reliable_p (const_edge);
+extern bool br_prob_note_reliable_p (const_rtx);
+extern void predict_insn_def (rtx_insn *, enum br_predictor, enum prediction);
+extern void rtl_predict_edge (edge, enum br_predictor, int);
+extern void gimple_predict_edge (edge, enum br_predictor, int);
+extern void remove_predictions_associated_with_edge (edge);
+extern void predict_edge_def (edge, enum br_predictor, enum prediction);
+extern void invert_br_probabilities (rtx);
+extern void guess_outgoing_edge_probabilities (basic_block);
+extern void tree_guess_outgoing_edge_probabilities (basic_block);
+extern void tree_estimate_probability (bool);
+extern void handle_missing_profiles (void);
+extern bool update_max_bb_count (void);
+extern bool expensive_function_p (int);
+extern void estimate_bb_frequencies (bool);
+extern void compute_function_frequency (void);
+extern tree build_predict_expr (enum br_predictor, enum prediction);
+extern const char *predictor_name (enum br_predictor);
+extern void rebuild_frequencies (void);
+extern void report_predictor_hitrates (void);
+extern void force_edge_cold (edge, bool);
+extern void propagate_unlikely_bbs_forward (void);
+
+extern void add_reg_br_prob_note (rtx_insn *, profile_probability);
+
+/* In ipa-pure-const.c   */
+extern void warn_function_cold (tree);
 
 #endif  /* GCC_PREDICT_H */