Commit message (Collapse) | Author | Age | Files | Lines | |
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* | Use PTR_ALIGN_DOWN on strcspn and strspn | Adhemerval Zanella | 2016-04-01 | 1 | -1/+3 |
| | | | | | | | Tested on aarch64. * string/strcspn.c (strcspn): Use PTR_ALIGN_DOWN. * string/strspn.c (strspn): Likewise. | ||||
* | Improve generic strspn performance | Adhemerval Zanella | 2016-04-01 | 1 | -15/+42 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | As for strcspn, this patch improves strspn performance using a much faster algorithm. It first constructs a 256-entry table based on the accept string and then uses it as a lookup table for the input string. As for strcspn optimization, it is generally at least 10 times faster than the existing implementation on bench-strspn on a few AArch64 implementations. Also the string/bits/string2.h inlines make no longer sense, as current implementation will already implement most of the optimizations. Tested on x86_64, i686, and aarch64. * string/strspn.c (strcspn): Rewrite function. * string/bits/string2.h (strspn): Use __builtin_strcspn. (__strspn_c1): Remove inline function. (__strspn_c2): Likewise. (__strspn_c3): Likewise. * string/string-inlines.c [SHLIB_COMPAT(libc, GLIBC_2_1_1, GLIBC_2_24)] (__strspn_c1): Add compatibility symbol. [SHLIB_COMPAT(libc, GLIBC_2_1_1, GLIBC_2_24)] (__strspn_c2): Likewise. [SHLIB_COMPAT(libc, GLIBC_2_1_1, GLIBC_2_24)] (__strspn_c3): Likewise. | ||||
* | Update copyright dates with scripts/update-copyrights. | Joseph Myers | 2016-01-04 | 1 | -1/+1 |
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* | Update copyright dates with scripts/update-copyrights. | Joseph Myers | 2015-01-02 | 1 | -1/+1 |
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* | PowerPC: strspn optimization for PPC64/POWER7 | Vidya Ranganathan | 2014-03-11 | 1 | -3/+4 |
| | | | | | | | | The optimization is achieved by following techniques: > hashing of needle. > hashing avoids scanning of duplicate entries in needle across the string. > initializing the hash table with Vector instructions (VSX) by quadword access. > unrolling when scanning for character in string across hash table. | ||||
* | Update copyright notices with scripts/update-copyrights | Allan McRae | 2014-01-01 | 1 | -1/+1 |
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* | Update copyright notices with scripts/update-copyrights. | Joseph Myers | 2013-01-02 | 1 | -1/+1 |
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* | Replace FSF snail mail address with URLs. | Paul Eggert | 2012-02-09 | 1 | -3/+2 |
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* | Moved to csu/errno-loc.c. | Ulrich Drepper | 2005-12-14 | 1 | -0/+47 |
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* | (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. | Ulrich Drepper | 2004-12-22 | 1 | -47/+0 |
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* | 2.5-18.1 | Jakub Jelinek | 2007-07-12 | 1 | -0/+47 |