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97020474 | 1 | /* Measure strcpy functions. |
b168057a | 2 | Copyright (C) 2013-2015 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 | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #ifdef WIDE | |
20 | # include <wchar.h> | |
21 | # define CHAR wchar_t | |
22 | # define UCHAR wchar_t | |
23 | # define sfmt "ls" | |
24 | # define BIG_CHAR WCHAR_MAX | |
25 | # define SMALL_CHAR 1273 | |
26 | # define STRCMP wcscmp | |
27 | # define MEMCMP wmemcmp | |
28 | # define MEMSET wmemset | |
29 | #else | |
30 | # define CHAR char | |
31 | # define UCHAR unsigned char | |
32 | # define sfmt "s" | |
33 | # define BIG_CHAR CHAR_MAX | |
34 | # define SMALL_CHAR 127 | |
35 | # define STRCMP strcmp | |
36 | # define MEMCMP memcmp | |
37 | # define MEMSET memset | |
38 | #endif | |
39 | ||
40 | #ifndef STRCPY_RESULT | |
41 | # define STRCPY_RESULT(dst, len) dst | |
42 | # define TEST_MAIN | |
43 | # ifndef WIDE | |
44 | # define TEST_NAME "strcpy" | |
45 | # else | |
46 | # define TEST_NAME "wcscpy" | |
47 | # endif | |
48 | # include "bench-string.h" | |
49 | # ifndef WIDE | |
50 | # define SIMPLE_STRCPY simple_strcpy | |
51 | # define STRCPY strcpy | |
52 | # else | |
53 | # define SIMPLE_STRCPY simple_wcscpy | |
54 | # define STRCPY wcscpy | |
55 | # endif | |
56 | ||
57 | CHAR *SIMPLE_STRCPY (CHAR *, const CHAR *); | |
58 | ||
59 | IMPL (SIMPLE_STRCPY, 0) | |
60 | IMPL (STRCPY, 1) | |
61 | ||
62 | CHAR * | |
63 | SIMPLE_STRCPY (CHAR *dst, const CHAR *src) | |
64 | { | |
65 | CHAR *ret = dst; | |
66 | while ((*dst++ = *src++) != '\0'); | |
67 | return ret; | |
68 | } | |
69 | #endif | |
70 | ||
71 | typedef CHAR *(*proto_t) (CHAR *, const CHAR *); | |
72 | ||
73 | static void | |
74 | do_one_test (impl_t *impl, CHAR *dst, const CHAR *src, | |
75 | size_t len __attribute__((unused))) | |
76 | { | |
44558701 WN |
77 | size_t i, iters = INNER_LOOP_ITERS; |
78 | timing_t start, stop, cur; | |
79 | ||
97020474 SP |
80 | if (CALL (impl, dst, src) != STRCPY_RESULT (dst, len)) |
81 | { | |
82 | error (0, 0, "Wrong result in function %s %p %p", impl->name, | |
83 | CALL (impl, dst, src), STRCPY_RESULT (dst, len)); | |
84 | ret = 1; | |
85 | return; | |
86 | } | |
87 | ||
88 | if (STRCMP (dst, src) != 0) | |
89 | { | |
90 | error (0, 0, | |
91 | "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"", | |
92 | impl->name, dst, src); | |
93 | ret = 1; | |
94 | return; | |
95 | } | |
96 | ||
44558701 WN |
97 | TIMING_NOW (start); |
98 | for (i = 0; i < iters; ++i) | |
97020474 | 99 | { |
97020474 | 100 | CALL (impl, dst, src); |
97020474 | 101 | } |
44558701 WN |
102 | TIMING_NOW (stop); |
103 | ||
104 | TIMING_DIFF (cur, start, stop); | |
105 | ||
106 | TIMING_PRINT_MEAN ((double) cur, (double) iters); | |
97020474 SP |
107 | } |
108 | ||
109 | static void | |
110 | do_test (size_t align1, size_t align2, size_t len, int max_char) | |
111 | { | |
112 | size_t i; | |
113 | CHAR *s1, *s2; | |
114 | /* For wcscpy: align1 and align2 here mean alignment not in bytes, | |
115 | but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) | |
116 | len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ | |
117 | align1 &= 7; | |
118 | if ((align1 + len) * sizeof(CHAR) >= page_size) | |
119 | return; | |
120 | ||
121 | align2 &= 7; | |
122 | if ((align2 + len) * sizeof(CHAR) >= page_size) | |
123 | return; | |
124 | ||
125 | s1 = (CHAR *) (buf1) + align1; | |
126 | s2 = (CHAR *) (buf2) + align2; | |
127 | ||
128 | for (i = 0; i < len; i++) | |
129 | s1[i] = 32 + 23 * i % (max_char - 32); | |
130 | s1[len] = 0; | |
131 | ||
44558701 | 132 | printf ("Length %4zd, alignments in bytes %2zd/%2zd:", len, align1 * sizeof(CHAR), align2 * sizeof(CHAR)); |
97020474 SP |
133 | |
134 | FOR_EACH_IMPL (impl, 0) | |
135 | do_one_test (impl, s2, s1, len); | |
136 | ||
44558701 | 137 | putchar ('\n'); |
97020474 SP |
138 | } |
139 | ||
140 | int | |
141 | test_main (void) | |
142 | { | |
143 | size_t i; | |
144 | ||
145 | test_init (); | |
146 | ||
147 | printf ("%23s", ""); | |
148 | FOR_EACH_IMPL (impl, 0) | |
149 | printf ("\t%s", impl->name); | |
150 | putchar ('\n'); | |
151 | ||
152 | for (i = 0; i < 16; ++i) | |
153 | { | |
154 | do_test (0, 0, i, SMALL_CHAR); | |
155 | do_test (0, 0, i, BIG_CHAR); | |
156 | do_test (0, i, i, SMALL_CHAR); | |
157 | do_test (i, 0, i, BIG_CHAR); | |
158 | } | |
159 | ||
160 | for (i = 1; i < 8; ++i) | |
161 | { | |
162 | do_test (0, 0, 8 << i, SMALL_CHAR); | |
163 | do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR); | |
164 | } | |
165 | ||
166 | for (i = 1; i < 8; ++i) | |
167 | { | |
168 | do_test (i, 2 * i, 8 << i, SMALL_CHAR); | |
169 | do_test (2 * i, i, 8 << i, BIG_CHAR); | |
170 | do_test (i, i, 8 << i, SMALL_CHAR); | |
171 | do_test (i, i, 8 << i, BIG_CHAR); | |
172 | } | |
173 | ||
f59ad976 RS |
174 | for (i = 16; i <= 512; i+=4) |
175 | { | |
176 | do_test (0, 4, i, SMALL_CHAR); | |
177 | do_test (4, 0, i, BIG_CHAR); | |
178 | do_test (4, 4, i, SMALL_CHAR); | |
179 | do_test (2, 2, i, BIG_CHAR); | |
180 | do_test (2, 6, i, SMALL_CHAR); | |
181 | do_test (6, 2, i, BIG_CHAR); | |
182 | do_test (1, 7, i, SMALL_CHAR); | |
183 | do_test (7, 1, i, BIG_CHAR); | |
184 | do_test (3, 4, i, SMALL_CHAR); | |
185 | do_test (4, 3, i, BIG_CHAR); | |
186 | do_test (5, 7, i, SMALL_CHAR); | |
187 | do_test (7, 5, i, SMALL_CHAR); | |
188 | } | |
189 | ||
97020474 SP |
190 | return ret; |
191 | } | |
192 | ||
193 | #include "../test-skeleton.c" |