1 /* Measure strcpy functions.
2 Copyright (C) 2013-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
22 # define UCHAR wchar_t
24 # define BIG_CHAR WCHAR_MAX
25 # define SMALL_CHAR 1273
26 # define STRCMP wcscmp
27 # define MEMCMP wmemcmp
28 # define MEMSET wmemset
31 # define UCHAR unsigned char
33 # define BIG_CHAR CHAR_MAX
34 # define SMALL_CHAR 127
35 # define STRCMP strcmp
36 # define MEMCMP memcmp
37 # define MEMSET memset
41 # define STRCPY_RESULT(dst, len) dst
44 # define TEST_NAME "strcpy"
46 # define TEST_NAME "wcscpy"
48 # include "bench-string.h"
50 # define SIMPLE_STRCPY simple_strcpy
51 # define STRCPY strcpy
53 # define SIMPLE_STRCPY simple_wcscpy
54 # define STRCPY wcscpy
57 CHAR *SIMPLE_STRCPY (CHAR *, const CHAR *);
59 IMPL (SIMPLE_STRCPY, 0)
63 SIMPLE_STRCPY (CHAR *dst, const CHAR *src)
66 while ((*dst++ = *src++) != '\0');
71 typedef CHAR *(*proto_t) (CHAR *, const CHAR *);
74 do_one_test (impl_t *impl, CHAR *dst, const CHAR *src,
75 size_t len __attribute__((unused)))
77 size_t i, iters = INNER_LOOP_ITERS;
78 timing_t start, stop, cur;
80 if (CALL (impl, dst, src) != STRCPY_RESULT (dst, len))
82 error (0, 0, "Wrong result in function %s %p %p", impl->name,
83 CALL (impl, dst, src), STRCPY_RESULT (dst, len));
88 if (STRCMP (dst, src) != 0)
91 "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"",
92 impl->name, dst, src);
98 for (i = 0; i < iters; ++i)
100 CALL (impl, dst, src);
104 TIMING_DIFF (cur, start, stop);
106 TIMING_PRINT_MEAN ((double) cur, (double) iters);
110 do_test (size_t align1, size_t align2, size_t len, int max_char)
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. */
118 if ((align1 + len) * sizeof(CHAR) >= page_size)
122 if ((align2 + len) * sizeof(CHAR) >= page_size)
125 s1 = (CHAR *) (buf1) + align1;
126 s2 = (CHAR *) (buf2) + align2;
128 for (i = 0; i < len; i++)
129 s1[i] = 32 + 23 * i % (max_char - 32);
132 printf ("Length %4zd, alignments in bytes %2zd/%2zd:", len, align1 * sizeof(CHAR), align2 * sizeof(CHAR));
134 FOR_EACH_IMPL (impl, 0)
135 do_one_test (impl, s2, s1, len);
148 FOR_EACH_IMPL (impl, 0)
149 printf ("\t%s", impl->name);
152 for (i = 0; i < 16; ++i)
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);
160 for (i = 1; i < 8; ++i)
162 do_test (0, 0, 8 << i, SMALL_CHAR);
163 do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR);
166 for (i = 1; i < 8; ++i)
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);
174 for (i = 16; i <= 512; i+=4)
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);
193 #include "../test-skeleton.c"