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2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
157 lines
3.6 KiB
C
157 lines
3.6 KiB
C
/* Measure strcasecmp functions.
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Copyright (C) 2013-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <ctype.h>
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#define TEST_MAIN
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#define TEST_NAME "strcasecmp"
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#include "bench-string.h"
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typedef int (*proto_t) (const char *, const char *);
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static int simple_strcasecmp (const char *, const char *);
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IMPL (simple_strcasecmp, 0)
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IMPL (strcasecmp, 1)
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static int
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simple_strcasecmp (const char *s1, const char *s2)
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{
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int ret;
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while ((ret = ((unsigned char) tolower (*s1)
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- (unsigned char) tolower (*s2))) == 0
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&& *s1++)
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++s2;
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return ret;
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}
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static void
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do_one_test (impl_t *impl, const char *s1, const char *s2, int exp_result)
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{
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size_t i, iters = INNER_LOOP_ITERS;
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timing_t start, stop, cur;
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int result = CALL (impl, s1, s2);
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if ((exp_result == 0 && result != 0)
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|| (exp_result < 0 && result >= 0)
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|| (exp_result > 0 && result <= 0))
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{
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error (0, 0, "Wrong result in function %s %d %d", impl->name,
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result, exp_result);
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ret = 1;
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return;
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}
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TIMING_NOW (start);
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for (i = 0; i < iters; ++i)
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{
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CALL (impl, s1, s2);
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}
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TIMING_NOW (stop);
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TIMING_DIFF (cur, start, stop);
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TIMING_PRINT_MEAN ((double) cur, (double) iters);
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}
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static void
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do_test (size_t align1, size_t align2, size_t len, int max_char,
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int exp_result)
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{
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size_t i;
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char *s1, *s2;
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if (len == 0)
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return;
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align1 &= 7;
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if (align1 + len + 1 >= page_size)
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return;
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align2 &= 7;
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if (align2 + len + 1 >= page_size)
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return;
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s1 = (char *) (buf1 + align1);
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s2 = (char *) (buf2 + align2);
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for (i = 0; i < len; i++)
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{
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s1[i] = toupper (1 + 23 * i % max_char);
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s2[i] = tolower (s1[i]);
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}
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s1[len] = s2[len] = 0;
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s1[len + 1] = 23;
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s2[len + 1] = 24 + exp_result;
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if ((s2[len - 1] == 'z' && exp_result == -1)
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|| (s2[len - 1] == 'a' && exp_result == 1))
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s1[len - 1] += exp_result;
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else
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s2[len - 1] -= exp_result;
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printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
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FOR_EACH_IMPL (impl, 0)
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do_one_test (impl, s1, s2, exp_result);
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putchar ('\n');
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}
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int
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test_main (void)
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{
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size_t i;
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test_init ();
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printf ("%23s", "");
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FOR_EACH_IMPL (impl, 0)
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printf ("\t%s", impl->name);
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putchar ('\n');
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for (i = 1; i < 16; ++i)
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{
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do_test (i, i, i, 127, 0);
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do_test (i, i, i, 127, 1);
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do_test (i, i, i, 127, -1);
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}
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for (i = 1; i < 10; ++i)
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{
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do_test (0, 0, 2 << i, 127, 0);
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do_test (0, 0, 2 << i, 254, 0);
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do_test (0, 0, 2 << i, 127, 1);
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do_test (0, 0, 2 << i, 254, 1);
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do_test (0, 0, 2 << i, 127, -1);
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do_test (0, 0, 2 << i, 254, -1);
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}
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for (i = 1; i < 8; ++i)
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{
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do_test (i, 2 * i, 8 << i, 127, 0);
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do_test (2 * i, i, 8 << i, 254, 0);
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do_test (i, 2 * i, 8 << i, 127, 1);
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do_test (2 * i, i, 8 << i, 254, 1);
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do_test (i, 2 * i, 8 << i, 127, -1);
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do_test (2 * i, i, 8 << i, 254, -1);
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}
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return ret;
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}
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#include <support/test-driver.c>
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