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1c72f4ef | 1 | /* Definitions for transformations based on profile information for values. |
23a5b65a | 2 | Copyright (C) 2003-2014 Free Software Foundation, Inc. |
1c72f4ef ZD |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it under | |
7 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
1c72f4ef ZD |
9 | version. |
10 | ||
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ | |
1c72f4ef | 19 | |
6de9cd9a DN |
20 | #ifndef GCC_VALUE_PROF_H |
21 | #define GCC_VALUE_PROF_H | |
22 | ||
1c72f4ef ZD |
23 | /* Supported histogram types. */ |
24 | enum hist_type | |
25 | { | |
26 | HIST_TYPE_INTERVAL, /* Measures histogram of values inside a specified | |
27 | interval. */ | |
28 | HIST_TYPE_POW2, /* Histogram of power of 2 values. */ | |
29 | HIST_TYPE_SINGLE_VALUE, /* Tries to identify the value that is (almost) | |
30 | always constant. */ | |
6bad2617 | 31 | HIST_TYPE_CONST_DELTA, /* Tries to identify the (almost) always constant |
1c72f4ef | 32 | difference between two evaluations of a value. */ |
b8698a0f | 33 | HIST_TYPE_INDIR_CALL, /* Tries to identify the function that is (almost) |
6bad2617 | 34 | called in indirect call */ |
079a182e | 35 | HIST_TYPE_AVERAGE, /* Compute average value (sum of all values). */ |
89ab31c1 | 36 | HIST_TYPE_IOR, /* Used to compute expected alignment. */ |
86ce5d2f | 37 | HIST_TYPE_TIME_PROFILE, /* Used for time profile */ |
89ab31c1 | 38 | HIST_TYPE_MAX |
1c72f4ef ZD |
39 | }; |
40 | ||
6e885ee3 ZD |
41 | #define COUNTER_FOR_HIST_TYPE(TYPE) ((int) (TYPE) + GCOV_FIRST_VALUE_COUNTER) |
42 | #define HIST_TYPE_FOR_COUNTER(COUNTER) \ | |
43 | ((enum hist_type) ((COUNTER) - GCOV_FIRST_VALUE_COUNTER)) | |
44 | ||
e0cb7e1e | 45 | \f |
1c72f4ef | 46 | /* The value to measure. */ |
1f1e8527 | 47 | struct histogram_value_t |
1c72f4ef | 48 | { |
8a76829c | 49 | struct |
1f1e8527 | 50 | { |
8a76829c | 51 | tree value; /* The value to profile. */ |
726a989a | 52 | gimple stmt; /* Insn containing the value. */ |
8a76829c JH |
53 | gcov_type *counters; /* Pointer to first counter. */ |
54 | struct histogram_value_t *next; /* Linked list pointer. */ | |
1f1e8527 | 55 | } hvalue; |
6d9901e7 ZD |
56 | enum hist_type type; /* Type of information to measure. */ |
57 | unsigned n_counters; /* Number of required counters. */ | |
86ce5d2f | 58 | struct function *fun; |
1c72f4ef ZD |
59 | union |
60 | { | |
61 | struct | |
62 | { | |
63 | int int_start; /* First value in interval. */ | |
1f1e8527 | 64 | unsigned int steps; /* Number of values in it. */ |
1c72f4ef | 65 | } intvl; /* Interval histogram data. */ |
1c72f4ef ZD |
66 | } hdata; /* Profiled information specific data. */ |
67 | }; | |
68 | ||
6d9901e7 | 69 | typedef struct histogram_value_t *histogram_value; |
5f754896 | 70 | typedef const struct histogram_value_t *const_histogram_value; |
6d9901e7 | 71 | |
6d9901e7 | 72 | |
9771b263 | 73 | typedef vec<histogram_value> histogram_values; |
6d9901e7 | 74 | |
e0cb7e1e SB |
75 | extern void gimple_find_values_to_profile (histogram_values *); |
76 | extern bool gimple_value_profile_transformations (void); | |
6de9cd9a | 77 | |
726a989a RB |
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); | |
6946b3f7 JH |
88 | void verify_histograms (void); |
89 | void free_histograms (void); | |
726a989a | 90 | void stringop_block_profile (gimple, unsigned int *, HOST_WIDE_INT *); |
042ae7d2 JH |
91 | gimple gimple_ic (gimple, struct cgraph_node *, int, gcov_type, gcov_type); |
92 | ||
6946b3f7 | 93 | |
e0cb7e1e SB |
94 | /* In tree-profile.c. */ |
95 | extern void gimple_init_edge_profiler (void); | |
96 | extern void gimple_gen_edge_profiler (int, edge); | |
97 | extern void gimple_gen_interval_profiler (histogram_value, unsigned, unsigned); | |
98 | extern void gimple_gen_pow2_profiler (histogram_value, unsigned, unsigned); | |
99 | extern void gimple_gen_one_value_profiler (histogram_value, unsigned, unsigned); | |
100 | extern void gimple_gen_ic_profiler (histogram_value, unsigned, unsigned); | |
101 | extern void gimple_gen_ic_func_profiler (void); | |
86ce5d2f ML |
102 | extern void gimple_gen_time_profiler (unsigned, unsigned, |
103 | gimple_stmt_iterator &); | |
e0cb7e1e SB |
104 | extern void gimple_gen_const_delta_profiler (histogram_value, |
105 | unsigned, unsigned); | |
106 | extern void gimple_gen_average_profiler (histogram_value, unsigned, unsigned); | |
107 | extern void gimple_gen_ior_profiler (histogram_value, unsigned, unsigned); | |
89ab31c1 JH |
108 | extern void stream_out_histogram_value (struct output_block *, histogram_value); |
109 | extern void stream_in_histogram_value (struct lto_input_block *, gimple); | |
2fa3d31b JH |
110 | extern struct cgraph_node* find_func_by_profile_id (int func_id); |
111 | ||
e0cb7e1e | 112 | |
6de9cd9a DN |
113 | /* In profile.c. */ |
114 | extern void init_branch_prob (void); | |
115 | extern void branch_prob (void); | |
116 | extern void end_branch_prob (void); | |
6de9cd9a | 117 | |
6de9cd9a DN |
118 | #endif /* GCC_VALUE_PROF_H */ |
119 |