From 72276d6e8843db6df5971b06787f0a5e39bda138 Mon Sep 17 00:00:00 2001 From: Andrew Senkevich Date: Sat, 16 Jan 2016 00:49:45 +0300 Subject: Added memcpy/memmove family optimized with AVX512 for KNL hardware. Added AVX512 implementations of memcpy, mempcpy, memmove, memcpy_chk, mempcpy_chk, memmove_chk. It shows average improvement more than 30% over AVX versions on KNL hardware (performance results in the thread ). * sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Added new files. * sysdeps/x86_64/multiarch/ifunc-impl-list.c: Added new tests. * sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S: New file. * sysdeps/x86_64/multiarch/mempcpy-avx512-no-vzeroupper.S: Likewise. * sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S: Likewise. * sysdeps/x86_64/multiarch/memcpy.S: Added new IFUNC branch. * sysdeps/x86_64/multiarch/memcpy_chk.S: Likewise. * sysdeps/x86_64/multiarch/memmove.c: Likewise. * sysdeps/x86_64/multiarch/memmove_chk.c: Likewise. * sysdeps/x86_64/multiarch/mempcpy.S: Likewise. * sysdeps/x86_64/multiarch/mempcpy_chk.S: Likewise. --- .../multiarch/memmove-avx512-no-vzeroupper.S | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S (limited to 'sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S') diff --git a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S new file mode 100644 index 0000000000..518d1fec35 --- /dev/null +++ b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S @@ -0,0 +1,22 @@ +/* memmove optimized with AVX512 for KNL hardware. + Copyright (C) 2016 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#define USE_AS_MEMMOVE +#define MEMCPY __memmove_avx512_no_vzeroupper +#define MEMCPY_CHK __memmove_chk_avx512_no_vzeroupper +#include "memcpy-avx512-no-vzeroupper.S" -- cgit 1.4.1