Sunil K Pandey c54d08756c 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)		2024-01-31 18:49:44 -08:00
..
64
fpu	x86_64: Fix asm constraints in feraiseexcept (bug 30305)	2023-04-24 15:34:06 +02:00
multiarch	x86: Prevent SIGSEGV in memcmp-sse2 when data is concurrently modified [BZ #29863]	2023-01-11 18:21:23 -08:00
nptl
x32
____longjmp_chk.S
__longjmp.S
_mcount.S
abort-instr.h
add_n.S
addmul_1.S
bsd-_setjmp.S
bsd-setjmp.S
configure
configure.ac
crti.S
crtn.S
dl-hwcaps-subdirs.c
dl-irel.h
dl-machine.h	x86-64: Only define used SSE/AVX/AVX512 run-time resolvers	2022-06-27 14:17:52 -07:00
dl-procinfo.c
dl-runtime.h
dl-tls.c
dl-tls.h
dl-tlsdesc.h
dl-tlsdesc.S	x86-64: Fix the tcb field load for x32 [BZ #31185]	2023-12-23 07:13:36 -08:00
dl-trampoline.h	x86-64: Small improvements to dl-trampoline.S	2022-06-29 19:47:52 -07:00
dl-trampoline.S	x86-64: Small improvements to dl-trampoline.S	2022-06-29 19:47:52 -07:00
ffs.c
ffsll.c	x86_64: Optimize ffsll function code size.	2024-01-31 18:49:44 -08:00
htonl.S
ifuncmain8.c
ifuncmod8.c
Implies
isa-default-impl.h	x86: Remove faulty sanity tests for RTLD build with no multiarch	2022-06-23 11:14:08 -07:00
isa.h
jmpbuf-offsets.h
jmpbuf-unwind.h
l10nflist.c
link-defines.sym
locale-defines.sym
localplt.data
lshift.S
machine-gmon.h
Makefile	arc4random: simplify design for better safety	2022-07-27 08:58:27 -03:00
memchr.S	x86: Add support for compiling {raw|w}memchr with high ISA level	2022-06-22 19:41:35 -07:00
memcmp-isa-default-impl.h	x86: Add support for building {w}memcmp{eq} with explicit ISA level	2022-07-05 16:42:42 -07:00
memcmp.S	x86: Add support for building {w}memcmp{eq} with explicit ISA level	2022-07-05 16:42:42 -07:00
memcmpeq.S	x86: Add support for building {w}memcmp{eq} with explicit ISA level	2022-07-05 16:42:42 -07:00
memcpy_chk.S
memcpy.S
memmove_chk.S
memmove.S	x86: Add support for building {w}memmove{_chk} with explicit ISA level	2022-07-05 16:42:42 -07:00
mempcpy_chk.S
mempcpy.S
memrchr.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
memset_chk.S
memset.S	x86: Add support for building {w}memset{_chk} with explicit ISA level	2022-07-05 16:42:42 -07:00
mp_clz_tab.c
mul_1.S
preconfigure
preconfigure.ac
rawmemchr.S	x86: Add support for compiling {raw|w}memchr with high ISA level	2022-06-22 19:41:35 -07:00
rshift.S
rtld-offsets.sym
setjmp.S
stackguard-macros.h
stackinfo.h
start.S
stpcpy.S	x86: Add support to build st{p|r}{n}{cpy|cat} with explicit ISA level	2022-07-16 03:07:59 -07:00
stpncpy.S	x86: Add support to build st{p|r}{n}{cpy|cat} with explicit ISA level	2022-07-16 03:07:59 -07:00
strcasecmp_l-nonascii.c
strcasecmp_l.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strcasecmp.S
strcat.S	x86: Add support to build st{p|r}{n}{cpy|cat} with explicit ISA level	2022-07-16 03:07:59 -07:00
strchr-isa-default-impl.h	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strchr.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strchrnul.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strcmp.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strcpy.S	x86: Add support to build st{p|r}{n}{cpy|cat} with explicit ISA level	2022-07-16 03:07:59 -07:00
strcspn-generic.c	x86: Add support for building str{c|p}{brk|spn} with explicit ISA level	2022-07-05 16:42:42 -07:00
strcspn.c	x86: Add support for building str{c|p}{brk|spn} with explicit ISA level	2022-07-05 16:42:42 -07:00
strlen.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strncase_l-nonascii.c
strncase_l.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strncase.S
strncat.S	x86: Add support to build st{p|r}{n}{cpy|cat} with explicit ISA level	2022-07-16 03:07:59 -07:00
strncmp.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strncpy.S	x86: Add support to build st{p|r}{n}{cpy|cat} with explicit ISA level	2022-07-16 03:07:59 -07:00
strnlen.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strpbrk-generic.c	x86: Add support for building str{c|p}{brk|spn} with explicit ISA level	2022-07-05 16:42:42 -07:00
strpbrk.c	x86: Add support for building str{c|p}{brk|spn} with explicit ISA level	2022-07-05 16:42:42 -07:00
strrchr.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
strspn-generic.c	x86: Add support for building str{c|p}{brk|spn} with explicit ISA level	2022-07-05 16:42:42 -07:00
strspn.c	x86: Add support for building str{c|p}{brk|spn} with explicit ISA level	2022-07-05 16:42:42 -07:00
sub_n.S
submul_1.S
sysdep.h
tls_get_addr.S
tlsdesc.c
tlsdesc.sym
tst-audit3.c
tst-audit4-aux.c
tst-audit4.c
tst-audit5.c
tst-audit6.c
tst-audit7.c
tst-audit10-aux.c
tst-audit10.c
tst-audit.h
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
tst-auditmod10b.c
tst-avx512-aux.c
tst-avx512.c
tst-avx512mod.c
tst-avx-aux.c
tst-avx.c
tst-avxmod.c
tst-glibc-hwcaps.c
tst-platform-1.c
tst-platformmod-1.c
tst-platformmod-2.c
tst-quad1.c
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
tst-quadmod1.S
tst-quadmod1pie.S
tst-quadmod2.S
tst-quadmod2pie.S
tst-rsi-strlen.c
tst-rsi-wcslen.c
tst-split-dynreloc.c
tst-split-dynreloc.lds
tst-sse.c
tst-ssemod.c
tst-x86_64-1.c
tst-x86_64mod-1.c
tst-x86-64-tls-1.c
varshift.c	x86: Add support for building str{c|p}{brk|spn} with explicit ISA level	2022-07-05 16:42:42 -07:00
Versions
wcschr.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
wcscmp.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
wcscpy-generic.c	x86: Add support to build wcscpy with explicit ISA level	2022-07-16 03:07:59 -07:00
wcscpy.S	x86: Add support to build wcscpy with explicit ISA level	2022-07-16 03:07:59 -07:00
wcslen.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
wcsncmp-generic.c	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
wcsncmp.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
wcsnlen-generic.c	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
wcsnlen.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
wcsrchr.S	x86: Add support to build strcmp/strlen/strchr with explicit ISA level	2022-07-16 03:07:59 -07:00
wmemchr.S	x86: Add support for compiling {raw|w}memchr with high ISA level	2022-06-22 19:41:35 -07:00
wmemcmp.S	x86: Add support for building {w}memcmp{eq} with explicit ISA level	2022-07-05 16:42:42 -07:00
wmemset_chk.S
wmemset.S
wordcopy.c