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97020474 | 1 | /* Measure memmove 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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
97020474 SP |
18 | |
19 | #define TEST_MAIN | |
16f87cfd | 20 | #define TEST_NAME "memmove" |
97020474 | 21 | #include "bench-string.h" |
86c6519e | 22 | #include "json-lib.h" |
97020474 | 23 | |
3c05dd79 | 24 | void *generic_memmove (void *, const void *, size_t); |
97020474 | 25 | |
3c05dd79 | 26 | typedef void *(*proto_t) (void *, const void *, size_t); |
97020474 | 27 | |
97020474 | 28 | IMPL (memmove, 1) |
3c05dd79 | 29 | IMPL (generic_memmove, 0) |
97020474 SP |
30 | |
31 | static void | |
24ca04fe SP |
32 | do_one_test (json_ctx_t *json_ctx, impl_t *impl, char *dst, char *src, |
33 | size_t len) | |
97020474 | 34 | { |
44558701 WN |
35 | size_t i, iters = INNER_LOOP_ITERS; |
36 | timing_t start, stop, cur; | |
37 | ||
44558701 WN |
38 | TIMING_NOW (start); |
39 | for (i = 0; i < iters; ++i) | |
97020474 | 40 | { |
44558701 | 41 | CALL (impl, dst, src, len); |
97020474 | 42 | } |
44558701 WN |
43 | TIMING_NOW (stop); |
44 | ||
45 | TIMING_DIFF (cur, start, stop); | |
46 | ||
86c6519e | 47 | json_element_double (json_ctx, (double) cur / (double) iters); |
97020474 SP |
48 | } |
49 | ||
50 | static void | |
86c6519e | 51 | do_test (json_ctx_t *json_ctx, size_t align1, size_t align2, size_t len) |
97020474 SP |
52 | { |
53 | size_t i, j; | |
54 | char *s1, *s2; | |
55 | ||
56 | align1 &= 63; | |
57 | if (align1 + len >= page_size) | |
58 | return; | |
59 | ||
60 | align2 &= 63; | |
61 | if (align2 + len >= page_size) | |
62 | return; | |
63 | ||
24ca04fe | 64 | s1 = (char *) (buf2 + align1); |
97020474 SP |
65 | s2 = (char *) (buf2 + align2); |
66 | ||
67 | for (i = 0, j = 1; i < len; i++, j += 23) | |
68 | s1[i] = j; | |
69 | ||
86c6519e SP |
70 | json_element_object_begin (json_ctx); |
71 | json_attr_uint (json_ctx, "length", (double) len); | |
72 | json_attr_uint (json_ctx, "align1", (double) align1); | |
73 | json_attr_uint (json_ctx, "align2", (double) align2); | |
74 | json_array_begin (json_ctx, "timings"); | |
97020474 SP |
75 | |
76 | FOR_EACH_IMPL (impl, 0) | |
24ca04fe | 77 | do_one_test (json_ctx, impl, s2, s1, len); |
97020474 | 78 | |
86c6519e SP |
79 | json_array_end (json_ctx); |
80 | json_element_object_end (json_ctx); | |
97020474 SP |
81 | } |
82 | ||
b598e134 | 83 | static int |
97020474 SP |
84 | test_main (void) |
85 | { | |
86c6519e | 86 | json_ctx_t json_ctx; |
97020474 SP |
87 | size_t i; |
88 | ||
89 | test_init (); | |
90 | ||
86c6519e SP |
91 | json_init (&json_ctx, 0, stdout); |
92 | ||
93 | json_document_begin (&json_ctx); | |
94 | json_attr_string (&json_ctx, "timing_type", TIMING_TYPE); | |
95 | ||
96 | json_attr_object_begin (&json_ctx, "functions"); | |
97 | json_attr_object_begin (&json_ctx, "memmove"); | |
98 | json_attr_string (&json_ctx, "bench-variant", "default"); | |
99 | ||
100 | json_array_begin (&json_ctx, "ifuncs"); | |
101 | ||
97020474 | 102 | FOR_EACH_IMPL (impl, 0) |
86c6519e SP |
103 | json_element_string (&json_ctx, impl->name); |
104 | json_array_end (&json_ctx); | |
97020474 | 105 | |
86c6519e | 106 | json_array_begin (&json_ctx, "results"); |
97020474 SP |
107 | for (i = 0; i < 14; ++i) |
108 | { | |
86c6519e SP |
109 | do_test (&json_ctx, 0, 32, 1 << i); |
110 | do_test (&json_ctx, 32, 0, 1 << i); | |
111 | do_test (&json_ctx, 0, i, 1 << i); | |
112 | do_test (&json_ctx, i, 0, 1 << i); | |
97020474 SP |
113 | } |
114 | ||
115 | for (i = 0; i < 32; ++i) | |
116 | { | |
86c6519e SP |
117 | do_test (&json_ctx, 0, 32, i); |
118 | do_test (&json_ctx, 32, 0, i); | |
119 | do_test (&json_ctx, 0, i, i); | |
120 | do_test (&json_ctx, i, 0, i); | |
97020474 SP |
121 | } |
122 | ||
123 | for (i = 3; i < 32; ++i) | |
124 | { | |
125 | if ((i & (i - 1)) == 0) | |
126 | continue; | |
86c6519e SP |
127 | do_test (&json_ctx, 0, 32, 16 * i); |
128 | do_test (&json_ctx, 32, 0, 16 * i); | |
129 | do_test (&json_ctx, 0, i, 16 * i); | |
130 | do_test (&json_ctx, i, 0, 16 * i); | |
97020474 SP |
131 | } |
132 | ||
aea44bf6 L |
133 | for (i = 32; i < 64; ++i) |
134 | { | |
86c6519e SP |
135 | do_test (&json_ctx, 0, 0, 32 * i); |
136 | do_test (&json_ctx, i, 0, 32 * i); | |
137 | do_test (&json_ctx, 0, i, 32 * i); | |
138 | do_test (&json_ctx, i, i, 32 * i); | |
aea44bf6 L |
139 | } |
140 | ||
86c6519e SP |
141 | json_array_end (&json_ctx); |
142 | json_attr_object_end (&json_ctx); | |
143 | json_attr_object_end (&json_ctx); | |
144 | json_document_end (&json_ctx); | |
145 | ||
97020474 SP |
146 | return ret; |
147 | } | |
148 | ||
b598e134 | 149 | #include <support/test-driver.c> |
3c05dd79 WD |
150 | |
151 | #define libc_hidden_builtin_def(X) | |
152 | #undef MEMMOVE | |
153 | #define MEMMOVE generic_memmove | |
154 | #include <string/memmove.c> | |
155 | #include <string/wordcopy.c> |