Sunil K Pandey d04b63770f x86_64: Optimize ffsll function code size. ... Ffsll function randomly regress by ~20%, depending on how code gets aligned in memory. Ffsll function code size is 17 bytes. Since default function alignment is 16 bytes, it can load on 16, 32, 48 or 64 bytes aligned memory. When ffsll function load at 16, 32 or 64 bytes aligned memory, entire code fits in single 64 bytes cache line. When ffsll function load at 48 bytes aligned memory, it splits in two cache line, hence random regression. Ffsll function size reduction from 17 bytes to 12 bytes ensures that it will always fit in single 64 bytes cache line. This patch fixes ffsll function random performance regression. Reviewed-by: Carlos O'Donell <carlos@redhat.com> (cherry picked from commit 9d94997b5f)		2024-02-08 10:07:26 -08:00
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64
fpu	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
multiarch	x86: Fix wcsnlen-avx2 page cross length comparison [BZ #29591]	2022-11-24 18:05:33 -08:00
nptl	x86_64: Remove wrong THREAD_ATOMIC_* macros	2019-01-03 18:38:14 -02:00
x32	x86-64 memcmp: Use unsigned Jcc instructions on size [BZ #24155]	2019-02-04 12:27:04 -08:00
____longjmp_chk.S
__longjmp.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
_mcount.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
abort-instr.h
add_n.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
addmul_1.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
bsd-_setjmp.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
bsd-setjmp.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
bzero.S
configure
configure.ac
crti.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
crtn.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
dl-irel.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
dl-lookupcfg.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
dl-machine.h	x86: Check IFUNC definition in unrelocated executable [BZ #20019]	2021-01-13 14:30:42 -08:00
dl-procinfo.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
dl-runtime.c
dl-tls.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
dl-tls.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
dl-tlsdesc.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
dl-tlsdesc.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
dl-trampoline.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
dl-trampoline.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
ffs.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
ffsll.c	x86_64: Optimize ffsll function code size.	2024-02-08 10:07:26 -08:00
htonl.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
ifuncmain8.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
ifuncmod8.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
Implies
isa.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
jmpbuf-offsets.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
jmpbuf-unwind.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
l10nflist.c
ldbl2mpn.c
link-defines.sym
locale-defines.sym
localplt.data
lshift.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
machine-gmon.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
Makefile	x86-64: Test strlen and wcslen with 0 in the RSI register [BZ #28064]	2022-02-01 12:51:16 -08:00
memchr.S	x86: Fix overflow bug with wmemchr-sse2 and wmemchr-avx2 [BZ #27974]	2022-01-27 16:25:42 -08:00
memcmp.S	x86-64 memcmp: Use unsigned Jcc instructions on size [BZ #24155]	2019-02-04 12:27:04 -08:00
memcopy.h
memcpy_chk.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
memcpy.S
memmove_chk.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
memmove.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
mempcpy_chk.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
mempcpy.S
memrchr.S	x86-64 memrchr: Properly handle the length parameter [BZ# 24097]	2019-01-21 11:30:12 -08:00
memset_chk.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
memset.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
memusage.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
mp_clz_tab.c
mul_1.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
preconfigure
preconfigure.ac
rawmemchr.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
rshift.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
rtld-offsets.sym
sched_cpucount.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
setjmp.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
stack-aliasing.h
stackguard-macros.h
stackinfo.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
start.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
stpcpy.S
strcasecmp_l-nonascii.c
strcasecmp_l.S
strcasecmp.S
strcat.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
strchr.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
strchrnul.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
strcmp.S	x86-64 strncmp family: Properly handle the length parameter [BZ# 24097]	2019-01-21 11:34:04 -08:00
strcpy.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
strcspn.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
strlen.S	x86-64: Move strlen.S to multiarch/strlen-vec.S	2022-01-27 16:26:04 -08:00
strncase_l-nonascii.c
strncase_l.S
strncase.S
strncmp.S
strnlen.S
strpbrk.S
strrchr.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
strspn.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
sub_n.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
submul_1.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
sysdep.h	x86-64: Add AVX optimized string/memory functions for RTM	2022-01-27 12:07:11 -08:00
tls_get_addr.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tls-macros.h
tlsdesc.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tlsdesc.sym
tst-audit3.c
tst-audit4-aux.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-audit4.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-audit5.c
tst-audit6.c
tst-audit7.c
tst-audit10-aux.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-audit10.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-audit.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-auditmod3a.c
tst-auditmod3b.c
tst-auditmod4a.c
tst-auditmod4b.c
tst-auditmod5a.c
tst-auditmod5b.c
tst-auditmod6a.c
tst-auditmod6b.c
tst-auditmod6c.c
tst-auditmod7a.c
tst-auditmod7b.c
tst-auditmod10a.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-auditmod10b.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-avx512-aux.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-avx512.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-avx512mod.c
tst-avx-aux.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-avx.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-avxmod.c
tst-mallocalign1.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-platform-1.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-platformmod-1.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-platformmod-2.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-quad1.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
tst-quadmod1.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-quadmod1pie.S
tst-quadmod2.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-quadmod2pie.S
tst-rsi-strlen.c	x86-64: Test strlen and wcslen with 0 in the RSI register [BZ #28064]	2022-02-01 12:51:16 -08:00
tst-rsi-wcslen.c	x86-64: Test strlen and wcslen with 0 in the RSI register [BZ #28064]	2022-02-01 12:51:16 -08:00
tst-split-dynreloc.c
tst-split-dynreloc.lds
tst-sse.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-ssemod.c
tst-stack-align.h	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-x86_64-1.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
tst-x86_64mod-1.c	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
Versions
wcschr.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
wcscmp.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
wcslen.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
wcsrchr.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
wmemset_chk.S	Update copyright dates with scripts/update-copyrights.	2019-01-01 00:11:28 +00:00
wmemset.S
wordcopy.c