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glibc/sysdeps/x86_64
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Ling Ma 5c74e47cd6 Add x86_64 memset optimized for AVX2 
In this patch we take advantage of HSW memory bandwidth, manage to
reduce miss branch prediction by avoiding using branch instructions and
force destination to be aligned with avx & avx2 instruction.

The CPU2006 403.gcc benchmark indicates this patch improves performance
from 26% to 59%.

	* sysdeps/x86_64/multiarch/Makefile: Add memset-avx2.
	* sysdeps/x86_64/multiarch/memset-avx2.S: New file.
	* sysdeps/x86_64/multiarch/memset.S: Likewise.
	* sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
	* sysdeps/x86_64/multiarch/rtld-memset.S: Likewise.
2014-06-19 15:14:08 -07:00
..
64
Move x86_64 code out of nptl/ subdirectory.
2014-06-11 21:33:32 -07:00
bits
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2014-01-01 22:00:23 +10:00
fpu
Fix __ieee754_logl (-LDBL_MAX) in FE_DOWNWARD mode (bug 17022).
2014-06-18 12:32:01 +00:00
multiarch
Add x86_64 memset optimized for AVX2
2014-06-19 15:14:08 -07:00
nptl
Move i386 code out of nptl/ subdirectory.
2014-06-12 10:08:24 -07:00
x32
Move x86_64 code out of nptl/ subdirectory.
2014-06-11 21:33:32 -07:00
____longjmp_chk.S
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__longjmp.S
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2014-01-01 22:00:23 +10:00
_mcount.S
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2014-01-01 22:00:23 +10:00
abort-instr.h
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add_n.S
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2014-01-01 22:00:23 +10:00
addmul_1.S
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2014-01-01 22:00:23 +10:00
backtrace.c
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2014-01-01 22:00:23 +10:00
bsd-_setjmp.S
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2014-01-01 22:00:23 +10:00
bsd-setjmp.S
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2014-01-01 22:00:23 +10:00
bzero.S
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cacheinfo.c
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2014-01-01 22:00:23 +10:00
configure
Save/restore bound registers in _dl_runtime_resolve
2014-04-09 15:38:09 -07:00
configure.ac
Save/restore bound registers in _dl_runtime_resolve
2014-04-09 15:38:09 -07:00
crti.S
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2014-01-01 22:00:23 +10:00
crtn.S
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2014-01-01 22:00:23 +10:00
dl-irel.h
Use glibc_likely instead __builtin_expect.
2014-02-10 15:07:12 +01:00
dl-lookupcfg.h
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2014-01-01 22:00:23 +10:00
dl-machine.h
Use glibc_likely instead __builtin_expect.
2014-02-10 15:07:12 +01:00
dl-runtime.c
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dl-tls.h
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2014-01-01 22:00:23 +10:00
dl-tlsdesc.h
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2014-01-01 22:00:23 +10:00
dl-tlsdesc.S
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2014-01-01 22:00:23 +10:00
dl-trampoline.h
Save/restore bound registers for _dl_runtime_profile
2014-04-16 14:46:49 -07:00
dl-trampoline.S
Save/restore bound registers for _dl_runtime_profile
2014-04-16 14:46:49 -07:00
ffs.c
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2014-01-01 22:00:23 +10:00
ffsll.c
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2014-01-01 22:00:23 +10:00
hp-timing.c
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hp-timing.h
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2014-01-01 22:00:23 +10:00
htonl.S
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2014-01-01 22:00:23 +10:00
Implies
Use x86-64 bits/byteswap.h for both i386 and x86_64
2012-05-30 14:13:18 -07:00
jmpbuf-offsets.h
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2014-01-01 22:00:23 +10:00
jmpbuf-unwind.h
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2014-01-01 22:00:23 +10:00
l10nflist.c
Minor optimization of popcount in l10nflist
2011-08-11 14:07:04 -04:00
ldbl2mpn.c
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ldsodefs.h
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2014-01-01 22:00:23 +10:00
link-defines.sym
Replace __int128 with __int128_t
2014-05-30 10:50:21 -07:00
locale-defines.sym
Implement optimized strcaecmp for x86-64.
2010-07-30 00:14:04 -07:00
lshift.S
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2014-01-01 22:00:23 +10:00
machine-gmon.h
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2014-01-01 22:00:23 +10:00
Makefile
Save and restore AVX-512 zmm registers to x86-64 ld.so
2014-03-13 11:19:08 -07:00
memchr.S
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2014-01-01 22:00:23 +10:00
memcmp.S
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2014-01-01 22:00:23 +10:00
memcpy_chk.S
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2014-01-01 22:00:23 +10:00
memcpy.S
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2014-01-01 22:00:23 +10:00
memmove.c
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2014-01-01 22:00:23 +10:00
mempcpy_chk.S
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2014-01-01 22:00:23 +10:00
mempcpy.S
Remove bounded-pointers handling from x86_64 assembly sources.
2013-02-17 21:57:26 +00:00
memrchr.S
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2014-01-01 22:00:23 +10:00
memset_chk.S
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2014-01-01 22:00:23 +10:00
memset.S
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2014-01-01 22:00:23 +10:00
memusage.h
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2014-01-01 22:00:23 +10:00
mp_clz_tab.c
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mul_1.S
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2014-01-01 22:00:23 +10:00
preconfigure
rename configure.in to configure.ac
2013-10-30 17:32:08 +10:00
preconfigure.ac
rename configure.in to configure.ac
2013-10-30 17:32:08 +10:00
rawmemchr.S
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2014-01-01 22:00:23 +10:00
rshift.S
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2014-01-01 22:00:23 +10:00
rtld-memcmp.c
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rtld-memset.S
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2014-01-01 22:00:23 +10:00
rtld-strchr.S
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2014-01-01 22:00:23 +10:00
rtld-strlen.S
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2014-01-01 22:00:23 +10:00
sched_cpucount.c
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2014-01-01 22:00:23 +10:00
setjmp.S
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2014-01-01 22:00:23 +10:00
stackguard-macros.h
BZ #15754: CVE-2013-4788
2013-09-23 00:52:09 -04:00
stackinfo.h
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2014-01-01 22:00:23 +10:00
start.S
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2014-01-01 22:00:23 +10:00
stpcpy_chk.S
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stpcpy.S
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strcasecmp_l-nonascii.c
Remove pre-ISO C support
2012-01-07 23:57:22 -05:00
strcasecmp_l.S
Implement optimized strcaecmp for x86-64.
2010-07-30 00:14:04 -07:00
strcasecmp.S
Implement optimized strcaecmp for x86-64.
2010-07-30 00:14:04 -07:00
strcat.S
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2014-01-01 22:00:23 +10:00
strchr.S
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2014-01-01 22:00:23 +10:00
strchrnul.S
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2014-01-01 22:00:23 +10:00
strcmp.S
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2014-01-01 22:00:23 +10:00
strcpy_chk.S
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2014-01-01 22:00:23 +10:00
strcpy.S
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2014-01-01 22:00:23 +10:00
strcspn.S
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2014-01-01 22:00:23 +10:00
strlen.S
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2014-01-01 22:00:23 +10:00
strncase_l-nonascii.c
Remove pre-ISO C support
2012-01-07 23:57:22 -05:00
strncase_l.S
Add optimized strncasecmp versions for x86-64.
2010-08-14 22:04:01 -07:00
strncase.S
Add optimized strncasecmp versions for x86-64.
2010-08-14 22:04:01 -07:00
strncmp.S
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strnlen.S
Faster strlen on x64.
2013-03-18 07:39:12 +01:00
strpbrk.S
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strrchr.S
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2014-01-01 22:00:23 +10:00
strspn.S
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2014-01-01 22:00:23 +10:00
strtok_r.S
Remove bounded-pointers handling from x86_64 assembly sources.
2013-02-17 21:57:26 +00:00
strtok.S
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2014-01-01 22:00:23 +10:00
sub_n.S
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2014-01-01 22:00:23 +10:00
submul_1.S
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2014-01-01 22:00:23 +10:00
sysdep.h
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2014-01-01 22:00:23 +10:00
tls-macros.h
Split tls-macros.h into sysdeps directories.
2012-07-17 11:30:58 +00:00
tlsdesc.c
Factor mmap/munmap of PT_LOAD segments out of _dl_map_object_from_fd et al.
2014-04-03 10:47:14 -07:00
tlsdesc.sym
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tst-audit3.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit4.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit5.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit6.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit7.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit10.c
Save and restore AVX-512 zmm registers to x86-64 ld.so
2014-03-13 11:19:08 -07:00
tst-audit.h
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2014-01-01 22:00:23 +10:00
tst-auditmod3a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod3b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod4a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod4b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod5a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod5b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod6a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod6b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod6c.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod7a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod7b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod10a.c
Save and restore AVX-512 zmm registers to x86-64 ld.so
2014-03-13 11:19:08 -07:00
tst-auditmod10b.c
Save and restore AVX-512 zmm registers to x86-64 ld.so
2014-03-13 11:19:08 -07:00
tst-mallocalign1.c
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2014-01-01 22:00:23 +10:00
tst-quad1.c
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2014-01-01 22:00:23 +10:00
tst-quad1pie.c
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-quad2.c
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-quad2pie.c
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-quadmod1.S
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2014-01-01 22:00:23 +10:00
tst-quadmod1pie.S
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-quadmod2.S
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2014-01-01 22:00:23 +10:00
tst-quadmod2pie.S
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-stack-align.h
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2014-01-01 22:00:23 +10:00
Versions
Work around old buggy program which cannot cope with memcpy semantics.
2011-04-01 19:38:21 -04:00
wcschr.S
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2014-01-01 22:00:23 +10:00
wcscmp.S
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2014-01-01 22:00:23 +10:00
wcslen.S
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2014-01-01 22:00:23 +10:00
wcsrchr.S
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2014-01-01 22:00:23 +10:00