]>
Commit | Line | Data |
---|---|---|
97020474 | 1 | /* Measure strcasecmp functions. |
d614a753 | 2 | Copyright (C) 2013-2020 Free Software Foundation, Inc. |
97020474 SP |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
97020474 SP |
18 | |
19 | #include <ctype.h> | |
20 | #define TEST_MAIN | |
21 | #define TEST_NAME "strcasecmp" | |
22 | #include "bench-string.h" | |
23 | ||
24 | typedef int (*proto_t) (const char *, const char *); | |
25 | static int simple_strcasecmp (const char *, const char *); | |
97020474 | 26 | |
97020474 SP |
27 | IMPL (simple_strcasecmp, 0) |
28 | IMPL (strcasecmp, 1) | |
29 | ||
30 | static int | |
31 | simple_strcasecmp (const char *s1, const char *s2) | |
32 | { | |
33 | int ret; | |
34 | ||
35 | while ((ret = ((unsigned char) tolower (*s1) | |
36 | - (unsigned char) tolower (*s2))) == 0 | |
37 | && *s1++) | |
38 | ++s2; | |
39 | return ret; | |
40 | } | |
41 | ||
97020474 SP |
42 | static void |
43 | do_one_test (impl_t *impl, const char *s1, const char *s2, int exp_result) | |
44 | { | |
44558701 WN |
45 | size_t i, iters = INNER_LOOP_ITERS; |
46 | timing_t start, stop, cur; | |
97020474 SP |
47 | int result = CALL (impl, s1, s2); |
48 | if ((exp_result == 0 && result != 0) | |
49 | || (exp_result < 0 && result >= 0) | |
50 | || (exp_result > 0 && result <= 0)) | |
51 | { | |
52 | error (0, 0, "Wrong result in function %s %d %d", impl->name, | |
53 | result, exp_result); | |
54 | ret = 1; | |
55 | return; | |
56 | } | |
57 | ||
44558701 WN |
58 | TIMING_NOW (start); |
59 | for (i = 0; i < iters; ++i) | |
97020474 | 60 | { |
44558701 | 61 | CALL (impl, s1, s2); |
97020474 | 62 | } |
44558701 WN |
63 | TIMING_NOW (stop); |
64 | ||
65 | TIMING_DIFF (cur, start, stop); | |
66 | ||
67 | TIMING_PRINT_MEAN ((double) cur, (double) iters); | |
97020474 SP |
68 | } |
69 | ||
70 | static void | |
71 | do_test (size_t align1, size_t align2, size_t len, int max_char, | |
72 | int exp_result) | |
73 | { | |
74 | size_t i; | |
75 | char *s1, *s2; | |
76 | ||
77 | if (len == 0) | |
78 | return; | |
79 | ||
80 | align1 &= 7; | |
81 | if (align1 + len + 1 >= page_size) | |
82 | return; | |
83 | ||
84 | align2 &= 7; | |
85 | if (align2 + len + 1 >= page_size) | |
86 | return; | |
87 | ||
88 | s1 = (char *) (buf1 + align1); | |
89 | s2 = (char *) (buf2 + align2); | |
90 | ||
91 | for (i = 0; i < len; i++) | |
92 | { | |
93 | s1[i] = toupper (1 + 23 * i % max_char); | |
94 | s2[i] = tolower (s1[i]); | |
95 | } | |
96 | ||
97 | s1[len] = s2[len] = 0; | |
98 | s1[len + 1] = 23; | |
99 | s2[len + 1] = 24 + exp_result; | |
100 | if ((s2[len - 1] == 'z' && exp_result == -1) | |
101 | || (s2[len - 1] == 'a' && exp_result == 1)) | |
102 | s1[len - 1] += exp_result; | |
103 | else | |
104 | s2[len - 1] -= exp_result; | |
105 | ||
44558701 | 106 | printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2); |
97020474 SP |
107 | |
108 | FOR_EACH_IMPL (impl, 0) | |
109 | do_one_test (impl, s1, s2, exp_result); | |
110 | ||
44558701 | 111 | putchar ('\n'); |
97020474 SP |
112 | } |
113 | ||
114 | int | |
115 | test_main (void) | |
116 | { | |
117 | size_t i; | |
118 | ||
119 | test_init (); | |
120 | ||
121 | printf ("%23s", ""); | |
122 | FOR_EACH_IMPL (impl, 0) | |
123 | printf ("\t%s", impl->name); | |
124 | putchar ('\n'); | |
125 | ||
126 | for (i = 1; i < 16; ++i) | |
127 | { | |
128 | do_test (i, i, i, 127, 0); | |
129 | do_test (i, i, i, 127, 1); | |
130 | do_test (i, i, i, 127, -1); | |
131 | } | |
132 | ||
133 | for (i = 1; i < 10; ++i) | |
134 | { | |
135 | do_test (0, 0, 2 << i, 127, 0); | |
136 | do_test (0, 0, 2 << i, 254, 0); | |
137 | do_test (0, 0, 2 << i, 127, 1); | |
138 | do_test (0, 0, 2 << i, 254, 1); | |
139 | do_test (0, 0, 2 << i, 127, -1); | |
140 | do_test (0, 0, 2 << i, 254, -1); | |
141 | } | |
142 | ||
143 | for (i = 1; i < 8; ++i) | |
144 | { | |
145 | do_test (i, 2 * i, 8 << i, 127, 0); | |
146 | do_test (2 * i, i, 8 << i, 254, 0); | |
147 | do_test (i, 2 * i, 8 << i, 127, 1); | |
148 | do_test (2 * i, i, 8 << i, 254, 1); | |
149 | do_test (i, 2 * i, 8 << i, 127, -1); | |
150 | do_test (2 * i, i, 8 << i, 254, -1); | |
151 | } | |
152 | ||
153 | return ret; | |
154 | } | |
155 | ||
b598e134 | 156 | #include <support/test-driver.c> |