]>
Commit | Line | Data |
---|---|---|
67fa274c | 1 | /* Support for plotting bar charts in dumps. |
7adcbafe | 2 | Copyright (C) 2020-2022 Free Software Foundation, Inc. |
67fa274c DM |
3 | Contributed by David Malcolm <dmalcolm@redhat.com>. |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | General Public License 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 | #include "config.h" | |
22 | #include "system.h" | |
23 | #include "coretypes.h" | |
24 | #include "pretty-print.h" | |
25 | #include "analyzer/bar-chart.h" | |
26 | ||
27 | #if ENABLE_ANALYZER | |
28 | ||
29 | namespace ana { | |
30 | ||
31 | /* class bar_chart. */ | |
32 | ||
33 | /* Add an item, taking a copy of NAME. */ | |
34 | ||
35 | void | |
36 | bar_chart::add_item (const char *name, value_t value) | |
37 | { | |
38 | m_items.safe_push (new item (name, value)); | |
39 | } | |
40 | ||
41 | /* Print the data to PP. */ | |
42 | ||
43 | void | |
44 | bar_chart::print (pretty_printer *pp) const | |
45 | { | |
46 | /* Get maximum printing widths and maximum value. */ | |
47 | size_t max_width_name = 0; | |
48 | size_t max_width_value = 0; | |
49 | value_t max_value = 0; | |
50 | unsigned i; | |
51 | item *item; | |
52 | char digit_buffer[128]; | |
53 | FOR_EACH_VEC_ELT (m_items, i, item) | |
54 | { | |
55 | max_width_name = MAX (max_width_name, item->m_strlen); | |
56 | sprintf (digit_buffer, "%li", item->m_value); | |
57 | max_width_value = MAX (max_width_value, strlen (digit_buffer)); | |
58 | max_value = MAX (max_value, item->m_value); | |
59 | } | |
60 | ||
61 | /* Print items. */ | |
62 | FOR_EACH_VEC_ELT (m_items, i, item) | |
63 | { | |
64 | /* Print left-aligned name, padding to max_width_name. */ | |
65 | pp_string (pp, item->m_name); | |
66 | print_padding (pp, max_width_name - item->m_strlen); | |
67 | ||
68 | pp_string (pp, ": "); | |
69 | ||
70 | /* Print right-aligned name, padding to max_width_value. */ | |
71 | sprintf (digit_buffer, "%li", item->m_value); | |
72 | const size_t value_width = strlen (digit_buffer); | |
73 | print_padding (pp, max_width_value - value_width); | |
74 | pp_string (pp, digit_buffer); | |
75 | ||
76 | pp_character (pp, '|'); | |
77 | ||
78 | /* Print bar, scaled in proportion to max value. */ | |
79 | const int max_width_bar | |
80 | = MIN (max_value, 76 - (max_width_name + max_width_value + 4)); | |
81 | const int bar_width | |
82 | = (max_value > 0 ? (max_width_bar * item->m_value) / max_value : 0); | |
83 | for (int j = 0; j < bar_width; j++) | |
84 | pp_character (pp, '#'); | |
85 | print_padding (pp, max_width_bar - bar_width); | |
86 | pp_character (pp, '|'); | |
87 | pp_newline (pp); | |
88 | } | |
89 | } | |
90 | ||
91 | /* Print COUNT spaces to PP. */ | |
92 | ||
93 | void | |
94 | bar_chart::print_padding (pretty_printer *pp, size_t count) | |
95 | { | |
96 | for (size_t i = 0; i < count; i++) | |
97 | pp_character (pp, ' '); | |
98 | } | |
99 | ||
100 | } // namespace ana | |
101 | ||
102 | #endif /* #if ENABLE_ANALYZER */ |