1 | /* Support for plotting bar charts in dumps. |
2 | Copyright (C) 2020-2024 Free Software Foundation, Inc. |
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 (obj: 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 (s: digit_buffer, format: "%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, count: max_width_name - item->m_strlen); |
67 | |
68 | pp_string (pp, ": " ); |
69 | |
70 | /* Print right-aligned name, padding to max_width_value. */ |
71 | sprintf (s: digit_buffer, format: "%li" , item->m_value); |
72 | const size_t value_width = strlen (s: digit_buffer); |
73 | print_padding (pp, count: 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, count: 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 */ |
103 | |