1 /* Measure strpbrk functions.
2 Copyright (C) 2013-2023 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 BIG_CHAR MAX_CHAR
20
21 #ifndef WIDE
22 # define SMALL_CHAR 127
23 #else
24 # define SMALL_CHAR 1273
25 #endif /* WIDE */
26
27 #ifndef STRPBRK_RESULT
28 # define STRPBRK_RESULT(s, pos) ((s)[(pos)] ? (s) + (pos) : NULL)
29 # define RES_TYPE CHAR *
30 # define TEST_MAIN
31 # ifndef WIDE
32 # define TEST_NAME "strpbrk"
33 # else
34 # define TEST_NAME "wcspbrk"
35 # endif /* WIDE */
36 # include "bench-string.h"
37
38 typedef CHAR *(*proto_t) (const CHAR *, const CHAR *);
39
40 IMPL (STRPBRK, 1)
41
42 #endif /* !STRPBRK_RESULT */
43
44 #include "json-lib.h"
45
46 static void
47 do_one_test (json_ctx_t *json_ctx, impl_t *impl, const CHAR *s,
48 const CHAR *rej, RES_TYPE exp_res)
49 {
50 RES_TYPE res = CALL (impl, s, rej);
51 size_t i, iters = INNER_LOOP_ITERS8 / CHARBYTES;
52 timing_t start, stop, cur;
53
54 if (res != exp_res)
55 {
56 error (0, 0, "Wrong result in function %s %p %p", impl->name,
57 (void *) res, (void *) exp_res);
58 ret = 1;
59 return;
60 }
61
62 TIMING_NOW (start);
63 for (i = 0; i < iters; ++i)
64 {
65 CALL (impl, s, rej);
66 }
67 TIMING_NOW (stop);
68
69 TIMING_DIFF (cur, start, stop);
70
71 json_element_double (json_ctx, (double)cur / (double)iters);
72 }
73
74 static void
75 do_test (json_ctx_t *json_ctx, size_t align1, size_t align2, size_t pos,
76 size_t len)
77 {
78 size_t i;
79 int c;
80 RES_TYPE result;
81 CHAR *rej, *s;
82
83 align1 &= 7;
84 if ((align1 + pos + 10) * sizeof (CHAR) >= page_size || len > 240)
85 return;
86 if ((align2 + len) * sizeof (CHAR) >= page_size)
87 return;
88
89 rej = (CHAR *) (buf2) + align2;
90 s = (CHAR *) (buf1) + align1;
91
92 for (i = 0; i < len; ++i)
93 {
94 rej[i] = random () & BIG_CHAR;
95 if (!rej[i])
96 rej[i] = random () & BIG_CHAR;
97 if (!rej[i])
98 rej[i] = 1 + (random () & SMALL_CHAR);
99 }
100 rej[len] = '\0';
101 for (c = 1; c <= BIG_CHAR; ++c)
102 if (STRCHR (rej, c) == NULL)
103 break;
104
105 for (i = 0; i < pos; ++i)
106 {
107 s[i] = random () & BIG_CHAR;
108 if (STRCHR (rej, s[i]))
109 {
110 s[i] = random () & BIG_CHAR;
111 if (STRCHR (rej, s[i]))
112 s[i] = c;
113 }
114 }
115 s[pos] = rej[random () % (len + 1)];
116 if (s[pos])
117 {
118 for (i = pos + 1; i < pos + 10; ++i)
119 s[i] = random () & BIG_CHAR;
120 s[i] = '\0';
121 }
122 result = STRPBRK_RESULT (s, pos);
123
124 json_element_object_begin (json_ctx);
125 json_attr_uint (json_ctx, "len", len);
126 json_attr_uint (json_ctx, "pos", pos);
127 json_attr_uint (json_ctx, "align1", align1);
128 json_attr_uint (json_ctx, "align2", align2);
129 json_array_begin (json_ctx, "timings");
130
131 FOR_EACH_IMPL (impl, 0)
132 do_one_test (json_ctx, impl, s, rej, result);
133
134 json_array_end (json_ctx);
135 json_element_object_end (json_ctx);
136 }
137
138 int
139 test_main (void)
140 {
141 json_ctx_t json_ctx;
142 size_t i;
143
144 test_init ();
145
146 json_init (&json_ctx, 0, stdout);
147
148 json_document_begin (&json_ctx);
149 json_attr_string (&json_ctx, "timing_type", TIMING_TYPE);
150
151 json_attr_object_begin (&json_ctx, "functions");
152 json_attr_object_begin (&json_ctx, TEST_NAME);
153 json_attr_string (&json_ctx, "bench-variant", "");
154
155 json_array_begin (&json_ctx, "ifuncs");
156 FOR_EACH_IMPL (impl, 0)
157 json_element_string (&json_ctx, impl->name);
158 json_array_end (&json_ctx);
159
160 json_array_begin (&json_ctx, "results");
161
162
163 for (i = 0; i < 32; ++i)
164 {
165 do_test (&json_ctx, 0, 0, 512, i);
166 do_test (&json_ctx, i, 0, 512, i);
167 do_test (&json_ctx, 0, i, 512, i);
168 do_test (&json_ctx, i, i, 512, i);
169
170 }
171
172 for (i = 1; i < 8; ++i)
173 {
174 do_test (&json_ctx, 0, 0, 16 << i, 4);
175 do_test (&json_ctx, i, 0, 16 << i, 4);
176 do_test (&json_ctx, 0, i, 16 << i, 4);
177 do_test (&json_ctx, i, i, 16 << i, 4);
178 }
179
180 for (i = 1; i < 8; ++i)
181 {
182 do_test (&json_ctx, i, 0, 64, 10);
183 do_test (&json_ctx, i, i, 64, 10);
184 }
185
186 for (i = 0; i < 64; ++i)
187 {
188 do_test (&json_ctx, 0, 0, i, 6);
189 do_test (&json_ctx, 0, i, i, 6);
190 }
191
192 json_array_end (&json_ctx);
193 json_attr_object_end (&json_ctx);
194 json_attr_object_end (&json_ctx);
195 json_document_end (&json_ctx);
196
197 return ret;
198 }
199
200 #include <support/test-driver.c>