| 1 |
684 |
jeremybenn |
/* Definitions for transformations based on profile information for values.
|
| 2 |
|
|
Copyright (C) 2003, 2004, 2005, 2007, 2008, 2010
|
| 3 |
|
|
Free Software Foundation, Inc.
|
| 4 |
|
|
|
| 5 |
|
|
This file is part of GCC.
|
| 6 |
|
|
|
| 7 |
|
|
GCC is free software; you can redistribute it and/or modify it under
|
| 8 |
|
|
the terms of the GNU General Public License as published by the Free
|
| 9 |
|
|
Software Foundation; either version 3, or (at your option) any later
|
| 10 |
|
|
version.
|
| 11 |
|
|
|
| 12 |
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
| 13 |
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
| 14 |
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
| 15 |
|
|
for more details.
|
| 16 |
|
|
|
| 17 |
|
|
You should have received a copy of the GNU General Public License
|
| 18 |
|
|
along with GCC; see the file COPYING3. If not see
|
| 19 |
|
|
<http://www.gnu.org/licenses/>. */
|
| 20 |
|
|
|
| 21 |
|
|
#ifndef GCC_VALUE_PROF_H
|
| 22 |
|
|
#define GCC_VALUE_PROF_H
|
| 23 |
|
|
|
| 24 |
|
|
/* Supported histogram types. */
|
| 25 |
|
|
enum hist_type
|
| 26 |
|
|
{
|
| 27 |
|
|
HIST_TYPE_INTERVAL, /* Measures histogram of values inside a specified
|
| 28 |
|
|
interval. */
|
| 29 |
|
|
HIST_TYPE_POW2, /* Histogram of power of 2 values. */
|
| 30 |
|
|
HIST_TYPE_SINGLE_VALUE, /* Tries to identify the value that is (almost)
|
| 31 |
|
|
always constant. */
|
| 32 |
|
|
HIST_TYPE_CONST_DELTA, /* Tries to identify the (almost) always constant
|
| 33 |
|
|
difference between two evaluations of a value. */
|
| 34 |
|
|
HIST_TYPE_INDIR_CALL, /* Tries to identify the function that is (almost)
|
| 35 |
|
|
called in indirect call */
|
| 36 |
|
|
HIST_TYPE_AVERAGE, /* Compute average value (sum of all values). */
|
| 37 |
|
|
HIST_TYPE_IOR /* Used to compute expected alignment. */
|
| 38 |
|
|
};
|
| 39 |
|
|
|
| 40 |
|
|
#define COUNTER_FOR_HIST_TYPE(TYPE) ((int) (TYPE) + GCOV_FIRST_VALUE_COUNTER)
|
| 41 |
|
|
#define HIST_TYPE_FOR_COUNTER(COUNTER) \
|
| 42 |
|
|
((enum hist_type) ((COUNTER) - GCOV_FIRST_VALUE_COUNTER))
|
| 43 |
|
|
|
| 44 |
|
|
|
| 45 |
|
|
/* The value to measure. */
|
| 46 |
|
|
struct histogram_value_t
|
| 47 |
|
|
{
|
| 48 |
|
|
struct
|
| 49 |
|
|
{
|
| 50 |
|
|
tree value; /* The value to profile. */
|
| 51 |
|
|
gimple stmt; /* Insn containing the value. */
|
| 52 |
|
|
gcov_type *counters; /* Pointer to first counter. */
|
| 53 |
|
|
struct histogram_value_t *next; /* Linked list pointer. */
|
| 54 |
|
|
} hvalue;
|
| 55 |
|
|
enum hist_type type; /* Type of information to measure. */
|
| 56 |
|
|
unsigned n_counters; /* Number of required counters. */
|
| 57 |
|
|
union
|
| 58 |
|
|
{
|
| 59 |
|
|
struct
|
| 60 |
|
|
{
|
| 61 |
|
|
int int_start; /* First value in interval. */
|
| 62 |
|
|
unsigned int steps; /* Number of values in it. */
|
| 63 |
|
|
} intvl; /* Interval histogram data. */
|
| 64 |
|
|
} hdata; /* Profiled information specific data. */
|
| 65 |
|
|
};
|
| 66 |
|
|
|
| 67 |
|
|
typedef struct histogram_value_t *histogram_value;
|
| 68 |
|
|
typedef const struct histogram_value_t *const_histogram_value;
|
| 69 |
|
|
|
| 70 |
|
|
DEF_VEC_P(histogram_value);
|
| 71 |
|
|
DEF_VEC_ALLOC_P(histogram_value,heap);
|
| 72 |
|
|
|
| 73 |
|
|
typedef VEC(histogram_value,heap) *histogram_values;
|
| 74 |
|
|
|
| 75 |
|
|
extern void gimple_find_values_to_profile (histogram_values *);
|
| 76 |
|
|
extern bool gimple_value_profile_transformations (void);
|
| 77 |
|
|
|
| 78 |
|
|
histogram_value gimple_histogram_value (struct function *, gimple);
|
| 79 |
|
|
histogram_value gimple_histogram_value_of_type (struct function *, gimple,
|
| 80 |
|
|
enum hist_type);
|
| 81 |
|
|
void gimple_add_histogram_value (struct function *, gimple, histogram_value);
|
| 82 |
|
|
void dump_histograms_for_stmt (struct function *, FILE *, gimple);
|
| 83 |
|
|
void gimple_remove_histogram_value (struct function *, gimple, histogram_value);
|
| 84 |
|
|
void gimple_remove_stmt_histograms (struct function *, gimple);
|
| 85 |
|
|
void gimple_duplicate_stmt_histograms (struct function *, gimple,
|
| 86 |
|
|
struct function *, gimple);
|
| 87 |
|
|
void gimple_move_stmt_histograms (struct function *, gimple, gimple);
|
| 88 |
|
|
void verify_histograms (void);
|
| 89 |
|
|
void free_histograms (void);
|
| 90 |
|
|
void stringop_block_profile (gimple, unsigned int *, HOST_WIDE_INT *);
|
| 91 |
|
|
|
| 92 |
|
|
/* In tree-profile.c. */
|
| 93 |
|
|
extern void gimple_init_edge_profiler (void);
|
| 94 |
|
|
extern void gimple_gen_edge_profiler (int, edge);
|
| 95 |
|
|
extern void gimple_gen_interval_profiler (histogram_value, unsigned, unsigned);
|
| 96 |
|
|
extern void gimple_gen_pow2_profiler (histogram_value, unsigned, unsigned);
|
| 97 |
|
|
extern void gimple_gen_one_value_profiler (histogram_value, unsigned, unsigned);
|
| 98 |
|
|
extern void gimple_gen_ic_profiler (histogram_value, unsigned, unsigned);
|
| 99 |
|
|
extern void gimple_gen_ic_func_profiler (void);
|
| 100 |
|
|
extern void gimple_gen_const_delta_profiler (histogram_value,
|
| 101 |
|
|
unsigned, unsigned);
|
| 102 |
|
|
extern void gimple_gen_average_profiler (histogram_value, unsigned, unsigned);
|
| 103 |
|
|
extern void gimple_gen_ior_profiler (histogram_value, unsigned, unsigned);
|
| 104 |
|
|
|
| 105 |
|
|
/* In profile.c. */
|
| 106 |
|
|
extern void init_branch_prob (void);
|
| 107 |
|
|
extern void branch_prob (void);
|
| 108 |
|
|
extern void end_branch_prob (void);
|
| 109 |
|
|
|
| 110 |
|
|
#endif /* GCC_VALUE_PROF_H */
|
| 111 |
|
|
|
