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97020474 | 1 | /* Measure strcpy functions. |
04277e02 | 2 | Copyright (C) 2013-2019 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 | ||
90d3320d WD |
19 | #define BIG_CHAR MAX_CHAR |
20 | ||
97020474 | 21 | #ifdef WIDE |
97020474 | 22 | # define sfmt "ls" |
97020474 | 23 | # define SMALL_CHAR 1273 |
97020474 | 24 | #else |
97020474 | 25 | # define sfmt "s" |
97020474 | 26 | # define SMALL_CHAR 127 |
97020474 SP |
27 | #endif |
28 | ||
29 | #ifndef STRCPY_RESULT | |
30 | # define STRCPY_RESULT(dst, len) dst | |
31 | # define TEST_MAIN | |
32 | # ifndef WIDE | |
33 | # define TEST_NAME "strcpy" | |
34 | # else | |
35 | # define TEST_NAME "wcscpy" | |
36 | # endif | |
37 | # include "bench-string.h" | |
38 | # ifndef WIDE | |
39 | # define SIMPLE_STRCPY simple_strcpy | |
97020474 SP |
40 | # else |
41 | # define SIMPLE_STRCPY simple_wcscpy | |
97020474 SP |
42 | # endif |
43 | ||
44 | CHAR *SIMPLE_STRCPY (CHAR *, const CHAR *); | |
45 | ||
46 | IMPL (SIMPLE_STRCPY, 0) | |
47 | IMPL (STRCPY, 1) | |
48 | ||
49 | CHAR * | |
50 | SIMPLE_STRCPY (CHAR *dst, const CHAR *src) | |
51 | { | |
52 | CHAR *ret = dst; | |
53 | while ((*dst++ = *src++) != '\0'); | |
54 | return ret; | |
55 | } | |
56 | #endif | |
57 | ||
58 | typedef CHAR *(*proto_t) (CHAR *, const CHAR *); | |
59 | ||
60 | static void | |
61 | do_one_test (impl_t *impl, CHAR *dst, const CHAR *src, | |
62 | size_t len __attribute__((unused))) | |
63 | { | |
44558701 WN |
64 | size_t i, iters = INNER_LOOP_ITERS; |
65 | timing_t start, stop, cur; | |
66 | ||
97020474 SP |
67 | if (CALL (impl, dst, src) != STRCPY_RESULT (dst, len)) |
68 | { | |
69 | error (0, 0, "Wrong result in function %s %p %p", impl->name, | |
70 | CALL (impl, dst, src), STRCPY_RESULT (dst, len)); | |
71 | ret = 1; | |
72 | return; | |
73 | } | |
74 | ||
75 | if (STRCMP (dst, src) != 0) | |
76 | { | |
77 | error (0, 0, | |
78 | "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"", | |
79 | impl->name, dst, src); | |
80 | ret = 1; | |
81 | return; | |
82 | } | |
83 | ||
44558701 WN |
84 | TIMING_NOW (start); |
85 | for (i = 0; i < iters; ++i) | |
97020474 | 86 | { |
97020474 | 87 | CALL (impl, dst, src); |
97020474 | 88 | } |
44558701 WN |
89 | TIMING_NOW (stop); |
90 | ||
91 | TIMING_DIFF (cur, start, stop); | |
92 | ||
93 | TIMING_PRINT_MEAN ((double) cur, (double) iters); | |
97020474 SP |
94 | } |
95 | ||
96 | static void | |
97 | do_test (size_t align1, size_t align2, size_t len, int max_char) | |
98 | { | |
99 | size_t i; | |
100 | CHAR *s1, *s2; | |
101 | /* For wcscpy: align1 and align2 here mean alignment not in bytes, | |
102 | but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) | |
103 | len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ | |
104 | align1 &= 7; | |
c4f50205 | 105 | if ((align1 + len) * sizeof (CHAR) >= page_size) |
97020474 SP |
106 | return; |
107 | ||
108 | align2 &= 7; | |
c4f50205 | 109 | if ((align2 + len) * sizeof (CHAR) >= page_size) |
97020474 SP |
110 | return; |
111 | ||
112 | s1 = (CHAR *) (buf1) + align1; | |
113 | s2 = (CHAR *) (buf2) + align2; | |
114 | ||
115 | for (i = 0; i < len; i++) | |
116 | s1[i] = 32 + 23 * i % (max_char - 32); | |
117 | s1[len] = 0; | |
118 | ||
c4f50205 JM |
119 | printf ("Length %4zd, alignments in bytes %2zd/%2zd:", len, |
120 | align1 * sizeof (CHAR), align2 * sizeof (CHAR)); | |
97020474 SP |
121 | |
122 | FOR_EACH_IMPL (impl, 0) | |
123 | do_one_test (impl, s2, s1, len); | |
124 | ||
44558701 | 125 | putchar ('\n'); |
97020474 SP |
126 | } |
127 | ||
128 | int | |
129 | test_main (void) | |
130 | { | |
131 | size_t i; | |
132 | ||
133 | test_init (); | |
134 | ||
135 | printf ("%23s", ""); | |
136 | FOR_EACH_IMPL (impl, 0) | |
137 | printf ("\t%s", impl->name); | |
138 | putchar ('\n'); | |
139 | ||
140 | for (i = 0; i < 16; ++i) | |
141 | { | |
142 | do_test (0, 0, i, SMALL_CHAR); | |
143 | do_test (0, 0, i, BIG_CHAR); | |
144 | do_test (0, i, i, SMALL_CHAR); | |
145 | do_test (i, 0, i, BIG_CHAR); | |
146 | } | |
147 | ||
148 | for (i = 1; i < 8; ++i) | |
149 | { | |
150 | do_test (0, 0, 8 << i, SMALL_CHAR); | |
151 | do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR); | |
152 | } | |
153 | ||
154 | for (i = 1; i < 8; ++i) | |
155 | { | |
156 | do_test (i, 2 * i, 8 << i, SMALL_CHAR); | |
157 | do_test (2 * i, i, 8 << i, BIG_CHAR); | |
158 | do_test (i, i, 8 << i, SMALL_CHAR); | |
159 | do_test (i, i, 8 << i, BIG_CHAR); | |
160 | } | |
161 | ||
f59ad976 RS |
162 | for (i = 16; i <= 512; i+=4) |
163 | { | |
164 | do_test (0, 4, i, SMALL_CHAR); | |
165 | do_test (4, 0, i, BIG_CHAR); | |
166 | do_test (4, 4, i, SMALL_CHAR); | |
167 | do_test (2, 2, i, BIG_CHAR); | |
168 | do_test (2, 6, i, SMALL_CHAR); | |
169 | do_test (6, 2, i, BIG_CHAR); | |
170 | do_test (1, 7, i, SMALL_CHAR); | |
171 | do_test (7, 1, i, BIG_CHAR); | |
172 | do_test (3, 4, i, SMALL_CHAR); | |
173 | do_test (4, 3, i, BIG_CHAR); | |
174 | do_test (5, 7, i, SMALL_CHAR); | |
175 | do_test (7, 5, i, SMALL_CHAR); | |
176 | } | |
177 | ||
97020474 SP |
178 | return ret; |
179 | } | |
180 | ||
b598e134 | 181 | #include <support/test-driver.c> |