1 | /* Measure strcat functions. |
2 | Copyright (C) 2013-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #define TEST_MAIN |
20 | #ifndef WIDE |
21 | # define TEST_NAME "strcat" |
22 | #else |
23 | # define TEST_NAME "wcscat" |
24 | # define generic_strcat generic_wcscat |
25 | #endif /* WIDE */ |
26 | #include "bench-string.h" |
27 | |
28 | #define BIG_CHAR MAX_CHAR |
29 | |
30 | #ifndef WIDE |
31 | # define sfmt "s" |
32 | # define SMALL_CHAR 127 |
33 | #else |
34 | # define sfmt "ls" |
35 | # define SMALL_CHAR 1273 |
36 | #endif /* WIDE */ |
37 | |
38 | |
39 | typedef CHAR *(*proto_t) (CHAR *, const CHAR *); |
40 | |
41 | CHAR * |
42 | generic_strcat (CHAR *dst, const CHAR *src) |
43 | { |
44 | STRCPY (dst + STRLEN (dst), src); |
45 | return dst; |
46 | } |
47 | |
48 | IMPL (STRCAT, 1) |
49 | IMPL (generic_strcat, 0) |
50 | |
51 | static void |
52 | do_one_test (impl_t *impl, CHAR *dst, const CHAR *src) |
53 | { |
54 | size_t k = STRLEN (dst), i, iters = INNER_LOOP_ITERS_LARGE; |
55 | timing_t start, stop, cur; |
56 | |
57 | if (CALL (impl, dst, src) != dst) |
58 | { |
59 | error (status: 0, errnum: 0, format: "Wrong result in function %s %p %p" , impl->name, |
60 | CALL (impl, dst, src), dst); |
61 | ret = 1; |
62 | return; |
63 | } |
64 | |
65 | if (STRCMP (dst + k, src) != 0) |
66 | { |
67 | error (status: 0, errnum: 0, format: "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"" , |
68 | impl->name, dst, src); |
69 | ret = 1; |
70 | return; |
71 | } |
72 | |
73 | TIMING_NOW (start); |
74 | for (i = 0; i < iters; ++i) |
75 | { |
76 | dst[k] = '\0'; |
77 | CALL (impl, dst, src); |
78 | } |
79 | TIMING_NOW (stop); |
80 | |
81 | TIMING_DIFF (cur, start, stop); |
82 | |
83 | TIMING_PRINT_MEAN ((double) cur, (double) iters); |
84 | } |
85 | |
86 | static void |
87 | do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char) |
88 | { |
89 | size_t i; |
90 | CHAR *s1, *s2; |
91 | |
92 | align1 &= 7; |
93 | if ((align1 + len1) * sizeof (CHAR) >= page_size) |
94 | return; |
95 | |
96 | align2 &= 7; |
97 | if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size) |
98 | return; |
99 | |
100 | s1 = (CHAR *) (buf1) + align1; |
101 | s2 = (CHAR *) (buf2) + align2; |
102 | |
103 | for (i = 0; i < len1; ++i) |
104 | s1[i] = 32 + 23 * i % (max_char - 32); |
105 | s1[len1] = '\0'; |
106 | |
107 | for (i = 0; i < len2; i++) |
108 | s2[i] = 32 + 23 * i % (max_char - 32); |
109 | |
110 | printf (format: "Length %4zd/%4zd, alignment %2zd/%2zd:" , len1, len2, align1, align2); |
111 | |
112 | FOR_EACH_IMPL (impl, 0) |
113 | { |
114 | s2[len2] = '\0'; |
115 | do_one_test (impl, dst: s2, src: s1); |
116 | } |
117 | |
118 | putchar (c: '\n'); |
119 | } |
120 | |
121 | int |
122 | test_main (void) |
123 | { |
124 | size_t i; |
125 | |
126 | test_init (); |
127 | |
128 | printf (format: "%28s" , "" ); |
129 | FOR_EACH_IMPL (impl, 0) |
130 | printf (format: "\t%s" , impl->name); |
131 | putchar (c: '\n'); |
132 | |
133 | for (i = 0; i < 16; ++i) |
134 | { |
135 | do_test (align1: 0, align2: 0, len1: i, len2: i, SMALL_CHAR); |
136 | do_test (align1: 0, align2: 0, len1: i, len2: i, BIG_CHAR); |
137 | do_test (align1: 0, align2: i, len1: i, len2: i, SMALL_CHAR); |
138 | do_test (align1: i, align2: 0, len1: i, len2: i, BIG_CHAR); |
139 | } |
140 | |
141 | for (i = 1; i < 8; ++i) |
142 | { |
143 | do_test (align1: 0, align2: 0, len1: 8 << i, len2: 8 << i, SMALL_CHAR); |
144 | do_test (align1: 8 - i, align2: 2 * i, len1: 8 << i, len2: 8 << i, SMALL_CHAR); |
145 | do_test (align1: 0, align2: 0, len1: 8 << i, len2: 2 << i, SMALL_CHAR); |
146 | do_test (align1: 8 - i, align2: 2 * i, len1: 8 << i, len2: 2 << i, SMALL_CHAR); |
147 | } |
148 | |
149 | for (i = 1; i < 8; ++i) |
150 | { |
151 | do_test (align1: i, align2: 2 * i, len1: 8 << i, len2: 1, SMALL_CHAR); |
152 | do_test (align1: 2 * i, align2: i, len1: 8 << i, len2: 1, BIG_CHAR); |
153 | do_test (align1: i, align2: i, len1: 8 << i, len2: 10, SMALL_CHAR); |
154 | do_test (align1: i, align2: i, len1: 8 << i, len2: 10, BIG_CHAR); |
155 | } |
156 | |
157 | return ret; |
158 | } |
159 | |
160 | #include <support/test-driver.c> |
161 | |