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

..

aarch64

[AArch64] Add optimized strchr.

2014-06-19 11:03:59 +01:00

alpha

Alpha: Define TLS_DEFINE_INIT_TP

2014-06-11 12:23:35 -07:00

arm

Add adaptive elision to rwlocks

2014-06-13 13:15:28 -07:00

generic

Add fallback file for elide.h

2014-06-14 09:27:09 -07:00

gnu

Silence a missing-noreturn warning for _Unwind_Resume.

2014-05-09 10:06:20 -07:00

hppa

HPPA: Define TLS_DEFINE_INIT_TP

2014-06-09 14:04:45 -07:00

i386

Fix __ieee754_logl (-LDBL_MAX) in FE_DOWNWARD mode (bug 17022).

2014-06-18 12:32:01 +00:00

ia64

Remove second argument from TLS_INIT_TP macro

2014-05-27 14:48:46 +02:00

ieee754

PowerPC: Fix nearbyintl failure for few inputs

2014-06-17 08:46:25 -05:00

init_array

Update copyright notices with scripts/update-copyrights

2014-01-01 22:00:23 +10:00

m68k

m68k: update libm test ULPs

2014-06-17 00:29:23 +02:00

mach

Remove second argument from TLS_INIT_TP macro

2014-05-27 14:48:46 +02:00

microblaze

Remove second argument from TLS_INIT_TP macro

2014-05-27 14:48:46 +02:00

mips

MIPS: Define TLS_DEFINE_INIT_TP

2014-06-09 13:47:38 -07:00

nptl

Add adaptive elision to rwlocks

2014-06-13 13:15:28 -07:00

posix

Return EAI_AGAIN for AF_UNSPEC when herrno is TRY_AGAIN (BZ #16849)

2014-05-15 12:33:11 +05:30

powerpc

PowerPC: Move powerpc code out of nptl/ subdirectory

2014-06-17 07:54:22 -05:00

pthread

Use list.h in posix-timer code.

2014-06-12 14:17:14 -07:00

s390

Use $(rtld-prefix) more consistently.

2014-06-18 10:35:29 +00:00

sh

Add adaptive elision to rwlocks

2014-06-13 13:15:28 -07:00

sparc

Update Sparc ULPs.

2014-06-14 13:14:54 -07:00

tile

Add adaptive elision to rwlocks

2014-06-13 13:15:28 -07:00

unix

m68k: Consolidate NPTL/non versions of clone

2014-06-14 21:37:49 +02:00

wordsize-32

Update copyright notices with scripts/update-copyrights

2014-01-01 22:00:23 +10:00

wordsize-64

Update copyright notices with scripts/update-copyrights

2014-01-01 22:00:23 +10:00

x86

Add adaptive elision to rwlocks

2014-06-13 13:15:28 -07:00

x86_64

Add x86_64 memset optimized for AVX2

2014-06-19 15:14:08 -07:00