glibc/string
Leonhard Holz ef635a29f7 remove unnecessary memset in strcoll
This patch avoids some initialization overhead in the hot path of strcoll by
replacing a memset with zero assignments. It improves the file listing benchmark
by 15% on x86. Tests are ok.

filelist#C              -1.30%
filelist#en_US.UTF-8    -15.08%
lorem_ipsum#vi_VN.UTF-8 -15.04%
lorem_ipsum#ar_SA.UTF-8 -11.83%
lorem_ipsum#en_US.UTF-8 -9.66%
lorem_ipsum#zh_CN.UTF-8 -8.63%
lorem_ipsum#cs_CZ.UTF-8 -8.28%
lorem_ipsum#en_GB.UTF-8 -18.07%
lorem_ipsum#da_DK.UTF-8 -11.13%
lorem_ipsum#pl_PL.UTF-8 -15.31%
lorem_ipsum#fr_FR.UTF-8 -12.26%
lorem_ipsum#pt_PT.UTF-8 -10.64%
lorem_ipsum#el_GR.UTF-8 -8.19%
lorem_ipsum#ru_RU.UTF-8 -0.65%
lorem_ipsum#iw_IL.UTF-8 -14.92%
lorem_ipsum#es_ES.UTF-8 -11.47%
lorem_ipsum#hi_IN.UTF-8 -1.05%
lorem_ipsum#sv_SE.UTF-8  6.44%
lorem_ipsum#hu_HU.UTF-8 -9.85%
lorem_ipsum#tr_TR.UTF-8 -14.96%
lorem_ipsum#is_IS.UTF-8 -10.35%
lorem_ipsum#it_IT.UTF-8 -11.33%
lorem_ipsum#sr_RS.UTF-8 -9.88%
lorem_ipsum#ja_JP.UTF-8 -3.23%

        * string/strcoll_l.c (STRCOLL): Remove unnecessary memset.
2015-06-22 07:53:09 +05:30
..
bits Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Depend Update. 2001-03-19 21:40:15 +00:00
Makefile Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Versions Sort Versions files 2013-02-17 16:34:04 +01:00
_strerror.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-addsep.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-append.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-count.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-create.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-ctsep.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-delete.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-extract.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-insert.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-next.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-replace.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz-stringify.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
argz.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
basename.c Fix pathconf basename namespace (bug 18444). 2015-05-22 17:09:36 +00:00
bcopy.c Rather than using a C implementation of memmove, directly call memmove, which 2015-02-27 14:44:41 +00:00
bug-envz1.c * string/Makefile (tests): Add bug-envz1. 2006-06-04 16:36:04 +00:00
bug-strcoll1.c Update. 2001-04-26 20:45:18 +00:00
bug-strncat1.c * malloc/memusagestat.c (main): Use return instead of exit to 2000-12-31 10:52:32 +00:00
bug-strpbrk1.c * malloc/memusagestat.c (main): Use return instead of exit to 2000-12-31 10:52:32 +00:00
bug-strspn1.c * malloc/memusagestat.c (main): Use return instead of exit to 2000-12-31 10:52:32 +00:00
bug-strtok1.c [BZ #2126] 2006-01-10 00:25:07 +00:00
byteswap.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
bzero.c Rather than using a C implementation of memset, directly call memset, which 2015-02-27 14:41:46 +00:00
endian.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
envz.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
envz.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
ffs.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
ffsll.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
inl-tester.c Update. 1997-09-11 12:09:10 +00:00
memccpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memchr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memcmp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memcpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memfrob.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memmem.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memmove.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memory.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mempcpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memrchr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memset.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
noinl-tester.c Update. 1997-09-16 00:42:43 +00:00
rawmemchr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
stpcpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
stpncpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
str-two-way.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
stratcliff.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcasecmp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcasecmp_l.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcasestr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcat.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strchr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strchrnul.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcmp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcoll.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcoll_l.c remove unnecessary memset in strcoll 2015-06-22 07:53:09 +05:30
strcpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcspn.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strdup.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strerror.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strerror_l.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strfry.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
string-inlines.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
string.h Don't define __CORRECT_ISO_CPP_STRING_H_PROTO for non-GCC compilers (bug 17631) 2015-03-04 11:52:55 +01:00
strings.h Don't define __CORRECT_ISO_CPP_STRING_H_PROTO for non-GCC compilers (bug 17631) 2015-03-04 11:52:55 +01:00
strlen.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strncase.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strncase_l.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strncat.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strncmp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strncpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strndup.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strnlen.c Use libc_hidden_proto / libc_hidden_def with __strnlen. 2015-06-02 20:24:25 +00:00
strpbrk.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strrchr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strsep.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strsignal.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strspn.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strstr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strtok.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strtok_r.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strverscmp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strxfrm.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strxfrm_l.c Remove unused definitions 2015-02-11 12:50:53 +01:00
swab.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-bcopy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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test-memcpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-memmem.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-memmove.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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test-memrchr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-memset.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-rawmemchr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-stpcpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-stpncpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strcasecmp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strcasestr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strcat.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strchr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strchrnul.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strcmp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strcpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strcspn.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-string.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strlen.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strncasecmp.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strncat.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strncmp.c Use correct signedness in wcsncmp 2015-04-13 21:25:04 +02:00
test-strncpy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strnlen.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strpbrk.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strrchr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strspn.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
test-strstr.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
testcopy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tester.c Revert "Suppress warning in string/tester.c for gcc 4.9" 2015-01-06 18:43:28 +01:00
tst-bswap.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-endian.c Add #include <stdint.h> for uint[32|64]_t usage (except installed headers). 2013-05-16 11:32:54 -05:00
tst-inlcall.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-strcoll-overflow.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-strfry.c * stdlib/random_r.c (__initstate_r): Don't use non-existing state. 2005-04-12 15:29:07 +00:00
tst-strlen.c Add optimized x86-64 implementation of strnlen. 2010-07-26 08:37:08 -07:00
tst-strtok.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-strtok_r.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-strxfrm.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-strxfrm2.c * string/strxfrm_l.c (STRXFRM): Fix trailing \1 optimization 2006-11-10 15:20:59 +00:00
tst-svc.c * malloc/memusagestat.c (main): Use return instead of exit to 2000-12-31 10:52:32 +00:00
tst-svc.expect * string/strverscmp.c (__strverscmp): Fix last cleanups. 2009-04-07 06:51:59 +00:00
tst-svc.input * string/strverscmp.c (__strverscmp): Fix last cleanups. 2009-04-07 06:51:59 +00:00
tst-svc2.c [BZ #9893] 2009-03-14 23:57:33 +00:00
wordcopy.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
xpg-strerror.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00