Patchwork Make __memcpy_avx512_no_vzeroupper an alias

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Submitter H.J. Lu
Date March 25, 2016, 3:14 p.m.
Message ID <20160325151454.GA331@intel.com>
Download mbox | patch
Permalink /patch/11519/
State New
Headers show

Comments

H.J. Lu - March 25, 2016, 3:14 p.m.
Since x86-64 memcpy-avx512-no-vzeroupper.S implements memmove, we can make
__memcpy_avx512_no_vzeroupper an alias of __memmove_avx512_no_vzeroupper
to reduce code size of libc.so.

Tested on AVX512 machine.  Comments?  Feedbacks?

H.J.
---
	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Remove
	memcpy-avx512-no-vzeroupper.
	* sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S: Renamed
	to ...
	* sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S: This.
	(MEMCPY): Don't define.
	(MEMCPY_CHK): Likewise.
	(MEMPCPY): Likewise.
	(MEMPCPY_CHK): Likewise.
	(MEMPCPY_CHK): Renamed to ...
	(__mempcpy_chk_avx512_no_vzeroupper): This.
	(MEMPCPY_CHK): Renamed to ...
	(__mempcpy_chk_avx512_no_vzeroupper): This.
	(MEMCPY_CHK): Renamed to ...
	(__memmove_chk_avx512_no_vzeroupper): This.
	(MEMCPY): Renamed to ...
	(__memmove_avx512_no_vzeroupper): This.
	(__memcpy_avx512_no_vzeroupper): New alias.
	(__memcpy_chk_avx512_no_vzeroupper): Likewise.
---
 sysdeps/x86_64/multiarch/Makefile                  |   2 +-
 .../x86_64/multiarch/memcpy-avx512-no-vzeroupper.S | 424 ---------------------
 .../multiarch/memmove-avx512-no-vzeroupper.S       | 408 +++++++++++++++++++-
 3 files changed, 404 insertions(+), 430 deletions(-)
 delete mode 100644 sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
H.J. Lu - March 28, 2016, 8:18 p.m.
On Fri, Mar 25, 2016 at 8:14 AM, H.J. Lu <hongjiu.lu@intel.com> wrote:
> Since x86-64 memcpy-avx512-no-vzeroupper.S implements memmove, we can make
> __memcpy_avx512_no_vzeroupper an alias of __memmove_avx512_no_vzeroupper
> to reduce code size of libc.so.
>
> Tested on AVX512 machine.  Comments?  Feedbacks?
>
> H.J.
> ---
>         * sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Remove
>         memcpy-avx512-no-vzeroupper.
>         * sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S: Renamed
>         to ...
>         * sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S: This.
>         (MEMCPY): Don't define.
>         (MEMCPY_CHK): Likewise.
>         (MEMPCPY): Likewise.
>         (MEMPCPY_CHK): Likewise.
>         (MEMPCPY_CHK): Renamed to ...
>         (__mempcpy_chk_avx512_no_vzeroupper): This.
>         (MEMPCPY_CHK): Renamed to ...
>         (__mempcpy_chk_avx512_no_vzeroupper): This.
>         (MEMCPY_CHK): Renamed to ...
>         (__memmove_chk_avx512_no_vzeroupper): This.
>         (MEMCPY): Renamed to ...
>         (__memmove_avx512_no_vzeroupper): This.
>         (__memcpy_avx512_no_vzeroupper): New alias.
>         (__memcpy_chk_avx512_no_vzeroupper): Likewise.

Tested on KNL.  I am checking it in.

Patch

diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile
index 39c0905..7fc89c2 100644
--- a/sysdeps/x86_64/multiarch/Makefile
+++ b/sysdeps/x86_64/multiarch/Makefile
@@ -8,7 +8,7 @@  ifeq ($(subdir),string)
 sysdep_routines += strncat-c stpncpy-c strncpy-c strcmp-ssse3 \
 		   strcmp-sse2-unaligned strncmp-ssse3 \
 		   memcmp-sse4 memcpy-ssse3 memcpy-sse2-unaligned \
-		   memcpy-avx512-no-vzeroupper memmove-ssse3 \
+		   memmove-ssse3 \
 		   memcpy-ssse3-back memmove-avx-unaligned \
 		   memcpy-avx-unaligned \
 		   memmove-ssse3-back \
diff --git a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
deleted file mode 100644
index 285bb83..0000000
--- a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
+++ /dev/null
@@ -1,424 +0,0 @@ 
-/* memcpy 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
-   <http://www.gnu.org/licenses/>.  */
-
-#include <sysdep.h>
-
-#if defined HAVE_AVX512_ASM_SUPPORT && IS_IN (libc) \
-    && (defined SHARED \
-	|| defined USE_AS_MEMMOVE \
-	|| !defined USE_MULTIARCH)
-
-#include "asm-syntax.h"
-#ifndef MEMCPY
-# define MEMCPY		__memcpy_avx512_no_vzeroupper
-# define MEMCPY_CHK	__memcpy_chk_avx512_no_vzeroupper
-# define MEMPCPY	__mempcpy_avx512_no_vzeroupper
-# define MEMPCPY_CHK	__mempcpy_chk_avx512_no_vzeroupper
-#endif
-
-	.section .text.avx512,"ax",@progbits
-#if !defined USE_AS_MEMPCPY && !defined USE_AS_MEMMOVE
-ENTRY (MEMPCPY_CHK)
-	cmpq	%rdx, %rcx
-	jb	HIDDEN_JUMPTARGET (__chk_fail)
-END (MEMPCPY_CHK)
-
-ENTRY (MEMPCPY)
-	movq	%rdi, %rax
-	addq	%rdx, %rax
-	jmp	L(start)
-END (MEMPCPY)
-#endif
-
-#if !defined USE_AS_BCOPY
-ENTRY (MEMCPY_CHK)
-	cmpq	%rdx, %rcx
-	jb	HIDDEN_JUMPTARGET (__chk_fail)
-END (MEMCPY_CHK)
-#endif
-
-ENTRY (MEMCPY)
-	mov	%rdi, %rax
-#ifdef USE_AS_MEMPCPY
-	add	%rdx, %rax
-#endif
-L(start):
-	lea	(%rsi, %rdx), %rcx
-	lea	(%rdi, %rdx), %r9
-	cmp	$512, %rdx
-	ja	L(512bytesormore)
-
-L(check):
-	cmp	$16, %rdx
-	jbe	L(less_16bytes)
-	cmp	$256, %rdx
-	jb	L(less_256bytes)
-	vmovups	(%rsi), %zmm0
-	vmovups 0x40(%rsi), %zmm1
-	vmovups 0x80(%rsi), %zmm2
-	vmovups 0xC0(%rsi), %zmm3
-	vmovups	-0x100(%rcx), %zmm4
-	vmovups -0xC0(%rcx), %zmm5
-	vmovups -0x80(%rcx), %zmm6
-	vmovups -0x40(%rcx), %zmm7
-	vmovups %zmm0, (%rdi)
-	vmovups %zmm1, 0x40(%rdi)
-	vmovups %zmm2, 0x80(%rdi)
-	vmovups %zmm3, 0xC0(%rdi)
-	vmovups	%zmm4, -0x100(%r9)
-	vmovups %zmm5, -0xC0(%r9)
-	vmovups %zmm6, -0x80(%r9)
-	vmovups %zmm7, -0x40(%r9)
-	ret
-
-L(less_256bytes):
-	cmp	$128, %dl
-	jb	L(less_128bytes)
-	vmovups	(%rsi), %zmm0
-	vmovups 0x40(%rsi), %zmm1
-	vmovups -0x80(%rcx), %zmm2
-	vmovups -0x40(%rcx), %zmm3
-	vmovups	%zmm0, (%rdi)
-	vmovups %zmm1, 0x40(%rdi)
-	vmovups %zmm2, -0x80(%r9)
-	vmovups %zmm3, -0x40(%r9)
-	ret
-
-L(less_128bytes):
-	cmp	$64, %dl
-	jb	L(less_64bytes)
-	vmovdqu (%rsi), %ymm0
-	vmovdqu 0x20(%rsi), %ymm1
-	vmovdqu -0x40(%rcx), %ymm2
-	vmovdqu -0x20(%rcx), %ymm3
-	vmovdqu %ymm0, (%rdi)
-	vmovdqu %ymm1, 0x20(%rdi)
-	vmovdqu %ymm2, -0x40(%r9)
-	vmovdqu %ymm3, -0x20(%r9)
-	ret
-
-L(less_64bytes):
-	cmp	$32, %dl
-	jb	L(less_32bytes)
-	vmovdqu	(%rsi), %ymm0
-	vmovdqu -0x20(%rcx), %ymm1
-	vmovdqu	%ymm0, (%rdi)
-	vmovdqu	%ymm1, -0x20(%r9)
-	ret
-
-L(less_32bytes):
-	vmovdqu (%rsi), %xmm0
-	vmovdqu -0x10(%rcx), %xmm1
-	vmovdqu %xmm0, (%rdi)
-	vmovdqu %xmm1, -0x10(%r9)
-	ret
-
-L(less_16bytes):
-	cmp	$8, %dl
-	jb	L(less_8bytes)
-	movq	(%rsi), %rsi
-	movq	-0x8(%rcx), %rcx
-	movq	%rsi, (%rdi)
-	movq	%rcx, -0x8(%r9)
-	ret
-
-L(less_8bytes):
-	cmp	$4, %dl
-	jb	L(less_4bytes)
-	mov	(%rsi), %esi
-	mov	-0x4(%rcx), %ecx
-	mov	%esi, (%rdi)
-	mov	%ecx, -0x4(%r9)
-	ret
-
-L(less_4bytes):
-	cmp	$2, %dl
-	jb	L(less_2bytes)
-	mov	(%rsi), %si
-	mov	-0x2(%rcx), %cx
-	mov	%si, (%rdi)
-	mov	%cx, -0x2(%r9)
-	ret
-
-L(less_2bytes):
-	cmp	$1, %dl
-	jb	L(less_1bytes)
-	mov	(%rsi), %cl
-	mov	%cl, (%rdi)
-L(less_1bytes):
-	ret
-
-L(512bytesormore):
-#ifdef SHARED_CACHE_SIZE_HALF
-	mov	$SHARED_CACHE_SIZE_HALF, %r8
-#else
-	mov	__x86_shared_cache_size_half(%rip), %r8
-#endif
-	cmp	%r8, %rdx
-	jae	L(preloop_large)
-	cmp	$1024, %rdx
-	ja	L(1024bytesormore)
-	prefetcht1 (%rsi)
-	prefetcht1 0x40(%rsi)
-	prefetcht1 0x80(%rsi)
-	prefetcht1 0xC0(%rsi)
-	prefetcht1 0x100(%rsi)
-	prefetcht1 0x140(%rsi)
-	prefetcht1 0x180(%rsi)
-	prefetcht1 0x1C0(%rsi)
-	prefetcht1 -0x200(%rcx)
-	prefetcht1 -0x1C0(%rcx)
-	prefetcht1 -0x180(%rcx)
-	prefetcht1 -0x140(%rcx)
-	prefetcht1 -0x100(%rcx)
-	prefetcht1 -0xC0(%rcx)
-	prefetcht1 -0x80(%rcx)
-	prefetcht1 -0x40(%rcx)
-	vmovups	(%rsi), %zmm0
-	vmovups 0x40(%rsi), %zmm1
-	vmovups 0x80(%rsi), %zmm2
-	vmovups 0xC0(%rsi), %zmm3
-	vmovups	0x100(%rsi), %zmm4
-	vmovups 0x140(%rsi), %zmm5
-	vmovups 0x180(%rsi), %zmm6
-	vmovups 0x1C0(%rsi), %zmm7
-	vmovups	-0x200(%rcx), %zmm8
-	vmovups -0x1C0(%rcx), %zmm9
-	vmovups -0x180(%rcx), %zmm10
-	vmovups -0x140(%rcx), %zmm11
-	vmovups	-0x100(%rcx), %zmm12
-	vmovups -0xC0(%rcx), %zmm13
-	vmovups -0x80(%rcx), %zmm14
-	vmovups -0x40(%rcx), %zmm15
-	vmovups %zmm0, (%rdi)
-	vmovups %zmm1, 0x40(%rdi)
-	vmovups %zmm2, 0x80(%rdi)
-	vmovups %zmm3, 0xC0(%rdi)
-	vmovups %zmm4, 0x100(%rdi)
-	vmovups %zmm5, 0x140(%rdi)
-	vmovups %zmm6, 0x180(%rdi)
-	vmovups %zmm7, 0x1C0(%rdi)
-	vmovups	%zmm8, -0x200(%r9)
-	vmovups %zmm9, -0x1C0(%r9)
-	vmovups %zmm10, -0x180(%r9)
-	vmovups %zmm11, -0x140(%r9)
-	vmovups	%zmm12, -0x100(%r9)
-	vmovups %zmm13, -0xC0(%r9)
-	vmovups %zmm14, -0x80(%r9)
-	vmovups %zmm15, -0x40(%r9)
-	ret
-
-L(1024bytesormore):
-	cmp	%rsi, %rdi
-	ja	L(1024bytesormore_bkw)
-	sub	$512, %r9
-	vmovups -0x200(%rcx), %zmm8
-	vmovups -0x1C0(%rcx), %zmm9
-	vmovups -0x180(%rcx), %zmm10
-	vmovups -0x140(%rcx), %zmm11
-	vmovups	-0x100(%rcx), %zmm12
-	vmovups -0xC0(%rcx), %zmm13
-	vmovups -0x80(%rcx), %zmm14
-	vmovups -0x40(%rcx), %zmm15
-	prefetcht1 (%rsi)
-	prefetcht1 0x40(%rsi)
-	prefetcht1 0x80(%rsi)
-	prefetcht1 0xC0(%rsi)
-	prefetcht1 0x100(%rsi)
-	prefetcht1 0x140(%rsi)
-	prefetcht1 0x180(%rsi)
-	prefetcht1 0x1C0(%rsi)
-
-/* Loop with unaligned memory access.  */
-L(gobble_512bytes_loop):
-	vmovups	(%rsi), %zmm0
-	vmovups 0x40(%rsi), %zmm1
-	vmovups 0x80(%rsi), %zmm2
-	vmovups 0xC0(%rsi), %zmm3
-	vmovups	0x100(%rsi), %zmm4
-	vmovups 0x140(%rsi), %zmm5
-	vmovups 0x180(%rsi), %zmm6
-	vmovups 0x1C0(%rsi), %zmm7
-	add	$512, %rsi
-	prefetcht1 (%rsi)
-	prefetcht1 0x40(%rsi)
-	prefetcht1 0x80(%rsi)
-	prefetcht1 0xC0(%rsi)
-	prefetcht1 0x100(%rsi)
-	prefetcht1 0x140(%rsi)
-	prefetcht1 0x180(%rsi)
-	prefetcht1 0x1C0(%rsi)
-	vmovups	%zmm0, (%rdi)
-	vmovups %zmm1, 0x40(%rdi)
-	vmovups %zmm2, 0x80(%rdi)
-	vmovups %zmm3, 0xC0(%rdi)
-	vmovups	%zmm4, 0x100(%rdi)
-	vmovups %zmm5, 0x140(%rdi)
-	vmovups %zmm6, 0x180(%rdi)
-	vmovups %zmm7, 0x1C0(%rdi)
-	add	$512, %rdi
-	cmp	%r9, %rdi
-	jb	L(gobble_512bytes_loop)
-	vmovups %zmm8, (%r9)
-	vmovups %zmm9, 0x40(%r9)
-	vmovups %zmm10, 0x80(%r9)
-	vmovups %zmm11, 0xC0(%r9)
-	vmovups %zmm12, 0x100(%r9)
-	vmovups %zmm13, 0x140(%r9)
-	vmovups %zmm14, 0x180(%r9)
-	vmovups %zmm15, 0x1C0(%r9)
-	ret
-
-L(1024bytesormore_bkw):
-	add	$512, %rdi
-	vmovups	0x1C0(%rsi), %zmm8
-	vmovups 0x180(%rsi), %zmm9
-	vmovups 0x140(%rsi), %zmm10
-	vmovups 0x100(%rsi), %zmm11
-	vmovups	0xC0(%rsi), %zmm12
-	vmovups 0x80(%rsi), %zmm13
-	vmovups 0x40(%rsi), %zmm14
-	vmovups (%rsi), %zmm15
-	prefetcht1 -0x40(%rcx)
-	prefetcht1 -0x80(%rcx)
-	prefetcht1 -0xC0(%rcx)
-	prefetcht1 -0x100(%rcx)
-	prefetcht1 -0x140(%rcx)
-	prefetcht1 -0x180(%rcx)
-	prefetcht1 -0x1C0(%rcx)
-	prefetcht1 -0x200(%rcx)
-
-/* Backward loop with unaligned memory access.  */
-L(gobble_512bytes_loop_bkw):
-	vmovups -0x40(%rcx), %zmm0
-	vmovups -0x80(%rcx), %zmm1
-	vmovups -0xC0(%rcx), %zmm2
-	vmovups	-0x100(%rcx), %zmm3
-	vmovups -0x140(%rcx), %zmm4
-	vmovups -0x180(%rcx), %zmm5
-	vmovups -0x1C0(%rcx), %zmm6
-	vmovups	-0x200(%rcx), %zmm7
-	sub	$512, %rcx
-	prefetcht1 -0x40(%rcx)
-	prefetcht1 -0x80(%rcx)
-	prefetcht1 -0xC0(%rcx)
-	prefetcht1 -0x100(%rcx)
-	prefetcht1 -0x140(%rcx)
-	prefetcht1 -0x180(%rcx)
-	prefetcht1 -0x1C0(%rcx)
-	prefetcht1 -0x200(%rcx)
-	vmovups %zmm0, -0x40(%r9)
-	vmovups %zmm1, -0x80(%r9)
-	vmovups %zmm2, -0xC0(%r9)
-	vmovups	%zmm3, -0x100(%r9)
-	vmovups %zmm4, -0x140(%r9)
-	vmovups %zmm5, -0x180(%r9)
-	vmovups %zmm6, -0x1C0(%r9)
-	vmovups	%zmm7, -0x200(%r9)
-	sub	$512, %r9
-	cmp	%rdi, %r9
-	ja	L(gobble_512bytes_loop_bkw)
-	vmovups %zmm8, -0x40(%rdi)
-	vmovups %zmm9, -0x80(%rdi)
-	vmovups %zmm10, -0xC0(%rdi)
-	vmovups %zmm11, -0x100(%rdi)
-	vmovups %zmm12, -0x140(%rdi)
-	vmovups %zmm13, -0x180(%rdi)
-	vmovups %zmm14, -0x1C0(%rdi)
-	vmovups %zmm15, -0x200(%rdi)
-	ret
-
-L(preloop_large):
-	cmp	%rsi, %rdi
-	ja	L(preloop_large_bkw)
-	vmovups	(%rsi), %zmm4
-	vmovups	0x40(%rsi), %zmm5
-
-/* Align destination for access with non-temporal stores in the loop.  */
-	mov	%rdi, %r8
-	and	$-0x80, %rdi
-	add	$0x80, %rdi
-	sub	%rdi, %r8
-	sub	%r8, %rsi
-	add	%r8, %rdx
-L(gobble_256bytes_nt_loop):
-	prefetcht1 0x200(%rsi)
-	prefetcht1 0x240(%rsi)
-	prefetcht1 0x280(%rsi)
-	prefetcht1 0x2C0(%rsi)
-	prefetcht1 0x300(%rsi)
-	prefetcht1 0x340(%rsi)
-	prefetcht1 0x380(%rsi)
-	prefetcht1 0x3C0(%rsi)
-	vmovdqu64 (%rsi), %zmm0
-	vmovdqu64 0x40(%rsi), %zmm1
-	vmovdqu64 0x80(%rsi), %zmm2
-	vmovdqu64 0xC0(%rsi), %zmm3
-	vmovntdq %zmm0, (%rdi)
-	vmovntdq %zmm1, 0x40(%rdi)
-	vmovntdq %zmm2, 0x80(%rdi)
-	vmovntdq %zmm3, 0xC0(%rdi)
-	sub	$256, %rdx
-	add	$256, %rsi
-	add	$256, %rdi
-	cmp	$256, %rdx
-	ja	L(gobble_256bytes_nt_loop)
-	sfence
-	vmovups	%zmm4, (%rax)
-	vmovups	%zmm5, 0x40(%rax)
-	jmp	L(check)
-
-L(preloop_large_bkw):
-	vmovups -0x80(%rcx), %zmm4
-	vmovups -0x40(%rcx), %zmm5
-
-/* Align end of destination for access with non-temporal stores.  */
-	mov	%r9, %r8
-	and	$-0x80, %r9
-	sub	%r9, %r8
-	sub	%r8, %rcx
-	sub	%r8, %rdx
-	add	%r9, %r8
-L(gobble_256bytes_nt_loop_bkw):
-	prefetcht1 -0x400(%rcx)
-	prefetcht1 -0x3C0(%rcx)
-	prefetcht1 -0x380(%rcx)
-	prefetcht1 -0x340(%rcx)
-	prefetcht1 -0x300(%rcx)
-	prefetcht1 -0x2C0(%rcx)
-	prefetcht1 -0x280(%rcx)
-	prefetcht1 -0x240(%rcx)
-	vmovdqu64 -0x100(%rcx), %zmm0
-	vmovdqu64 -0xC0(%rcx), %zmm1
-	vmovdqu64 -0x80(%rcx), %zmm2
-	vmovdqu64 -0x40(%rcx), %zmm3
-	vmovntdq %zmm0,	-0x100(%r9)
-	vmovntdq %zmm1,	-0xC0(%r9)
-	vmovntdq %zmm2,	-0x80(%r9)
-	vmovntdq %zmm3,	-0x40(%r9)
-	sub	$256, %rdx
-	sub	$256, %rcx
-	sub	$256, %r9
-	cmp	$256, %rdx
-	ja	L(gobble_256bytes_nt_loop_bkw)
-	sfence
-	vmovups	%zmm4, -0x80(%r8)
-	vmovups	%zmm5, -0x40(%r8)
-	jmp	L(check)
-END (MEMCPY)
-#endif
diff --git a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
index 518d1fe..5b8ff57 100644
--- a/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
+++ b/sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S
@@ -1,4 +1,4 @@ 
-/* memmove optimized with AVX512 for KNL hardware.
+/* memmove/memcpy/mempcpy optimized with AVX512 for KNL hardware.
    Copyright (C) 2016 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -16,7 +16,405 @@ 
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#define USE_AS_MEMMOVE
-#define MEMCPY		__memmove_avx512_no_vzeroupper
-#define MEMCPY_CHK	__memmove_chk_avx512_no_vzeroupper
-#include "memcpy-avx512-no-vzeroupper.S"
+#include <sysdep.h>
+
+#if defined HAVE_AVX512_ASM_SUPPORT && IS_IN (libc)
+
+# include "asm-syntax.h"
+
+	.section .text.avx512,"ax",@progbits
+# if defined SHARED && !defined USE_AS_MEMPCPY && !defined USE_AS_MEMMOVE
+ENTRY (__mempcpy_chk_avx512_no_vzeroupper)
+	cmpq	%rdx, %rcx
+	jb	HIDDEN_JUMPTARGET (__chk_fail)
+END (__mempcpy_chk_avx512_no_vzeroupper)
+
+ENTRY (__mempcpy_avx512_no_vzeroupper)
+	movq	%rdi, %rax
+	addq	%rdx, %rax
+	jmp	L(start)
+END (__mempcpy_avx512_no_vzeroupper)
+# endif
+
+# ifdef SHARED
+ENTRY (__memmove_chk_avx512_no_vzeroupper)
+	cmpq	%rdx, %rcx
+	jb	HIDDEN_JUMPTARGET (__chk_fail)
+END (__memmove_chk_avx512_no_vzeroupper)
+# endif
+
+ENTRY (__memmove_avx512_no_vzeroupper)
+	mov	%rdi, %rax
+# ifdef USE_AS_MEMPCPY
+	add	%rdx, %rax
+# endif
+L(start):
+	lea	(%rsi, %rdx), %rcx
+	lea	(%rdi, %rdx), %r9
+	cmp	$512, %rdx
+	ja	L(512bytesormore)
+
+L(check):
+	cmp	$16, %rdx
+	jbe	L(less_16bytes)
+	cmp	$256, %rdx
+	jb	L(less_256bytes)
+	vmovups	(%rsi), %zmm0
+	vmovups 0x40(%rsi), %zmm1
+	vmovups 0x80(%rsi), %zmm2
+	vmovups 0xC0(%rsi), %zmm3
+	vmovups	-0x100(%rcx), %zmm4
+	vmovups -0xC0(%rcx), %zmm5
+	vmovups -0x80(%rcx), %zmm6
+	vmovups -0x40(%rcx), %zmm7
+	vmovups %zmm0, (%rdi)
+	vmovups %zmm1, 0x40(%rdi)
+	vmovups %zmm2, 0x80(%rdi)
+	vmovups %zmm3, 0xC0(%rdi)
+	vmovups	%zmm4, -0x100(%r9)
+	vmovups %zmm5, -0xC0(%r9)
+	vmovups %zmm6, -0x80(%r9)
+	vmovups %zmm7, -0x40(%r9)
+	ret
+
+L(less_256bytes):
+	cmp	$128, %dl
+	jb	L(less_128bytes)
+	vmovups	(%rsi), %zmm0
+	vmovups 0x40(%rsi), %zmm1
+	vmovups -0x80(%rcx), %zmm2
+	vmovups -0x40(%rcx), %zmm3
+	vmovups	%zmm0, (%rdi)
+	vmovups %zmm1, 0x40(%rdi)
+	vmovups %zmm2, -0x80(%r9)
+	vmovups %zmm3, -0x40(%r9)
+	ret
+
+L(less_128bytes):
+	cmp	$64, %dl
+	jb	L(less_64bytes)
+	vmovdqu (%rsi), %ymm0
+	vmovdqu 0x20(%rsi), %ymm1
+	vmovdqu -0x40(%rcx), %ymm2
+	vmovdqu -0x20(%rcx), %ymm3
+	vmovdqu %ymm0, (%rdi)
+	vmovdqu %ymm1, 0x20(%rdi)
+	vmovdqu %ymm2, -0x40(%r9)
+	vmovdqu %ymm3, -0x20(%r9)
+	ret
+
+L(less_64bytes):
+	cmp	$32, %dl
+	jb	L(less_32bytes)
+	vmovdqu	(%rsi), %ymm0
+	vmovdqu -0x20(%rcx), %ymm1
+	vmovdqu	%ymm0, (%rdi)
+	vmovdqu	%ymm1, -0x20(%r9)
+	ret
+
+L(less_32bytes):
+	vmovdqu (%rsi), %xmm0
+	vmovdqu -0x10(%rcx), %xmm1
+	vmovdqu %xmm0, (%rdi)
+	vmovdqu %xmm1, -0x10(%r9)
+	ret
+
+L(less_16bytes):
+	cmp	$8, %dl
+	jb	L(less_8bytes)
+	movq	(%rsi), %rsi
+	movq	-0x8(%rcx), %rcx
+	movq	%rsi, (%rdi)
+	movq	%rcx, -0x8(%r9)
+	ret
+
+L(less_8bytes):
+	cmp	$4, %dl
+	jb	L(less_4bytes)
+	mov	(%rsi), %esi
+	mov	-0x4(%rcx), %ecx
+	mov	%esi, (%rdi)
+	mov	%ecx, -0x4(%r9)
+	ret
+
+L(less_4bytes):
+	cmp	$2, %dl
+	jb	L(less_2bytes)
+	mov	(%rsi), %si
+	mov	-0x2(%rcx), %cx
+	mov	%si, (%rdi)
+	mov	%cx, -0x2(%r9)
+	ret
+
+L(less_2bytes):
+	cmp	$1, %dl
+	jb	L(less_1bytes)
+	mov	(%rsi), %cl
+	mov	%cl, (%rdi)
+L(less_1bytes):
+	ret
+
+L(512bytesormore):
+# ifdef SHARED_CACHE_SIZE_HALF
+	mov	$SHARED_CACHE_SIZE_HALF, %r8
+# else
+	mov	__x86_shared_cache_size_half(%rip), %r8
+# endif
+	cmp	%r8, %rdx
+	jae	L(preloop_large)
+	cmp	$1024, %rdx
+	ja	L(1024bytesormore)
+	prefetcht1 (%rsi)
+	prefetcht1 0x40(%rsi)
+	prefetcht1 0x80(%rsi)
+	prefetcht1 0xC0(%rsi)
+	prefetcht1 0x100(%rsi)
+	prefetcht1 0x140(%rsi)
+	prefetcht1 0x180(%rsi)
+	prefetcht1 0x1C0(%rsi)
+	prefetcht1 -0x200(%rcx)
+	prefetcht1 -0x1C0(%rcx)
+	prefetcht1 -0x180(%rcx)
+	prefetcht1 -0x140(%rcx)
+	prefetcht1 -0x100(%rcx)
+	prefetcht1 -0xC0(%rcx)
+	prefetcht1 -0x80(%rcx)
+	prefetcht1 -0x40(%rcx)
+	vmovups	(%rsi), %zmm0
+	vmovups 0x40(%rsi), %zmm1
+	vmovups 0x80(%rsi), %zmm2
+	vmovups 0xC0(%rsi), %zmm3
+	vmovups	0x100(%rsi), %zmm4
+	vmovups 0x140(%rsi), %zmm5
+	vmovups 0x180(%rsi), %zmm6
+	vmovups 0x1C0(%rsi), %zmm7
+	vmovups	-0x200(%rcx), %zmm8
+	vmovups -0x1C0(%rcx), %zmm9
+	vmovups -0x180(%rcx), %zmm10
+	vmovups -0x140(%rcx), %zmm11
+	vmovups	-0x100(%rcx), %zmm12
+	vmovups -0xC0(%rcx), %zmm13
+	vmovups -0x80(%rcx), %zmm14
+	vmovups -0x40(%rcx), %zmm15
+	vmovups %zmm0, (%rdi)
+	vmovups %zmm1, 0x40(%rdi)
+	vmovups %zmm2, 0x80(%rdi)
+	vmovups %zmm3, 0xC0(%rdi)
+	vmovups %zmm4, 0x100(%rdi)
+	vmovups %zmm5, 0x140(%rdi)
+	vmovups %zmm6, 0x180(%rdi)
+	vmovups %zmm7, 0x1C0(%rdi)
+	vmovups	%zmm8, -0x200(%r9)
+	vmovups %zmm9, -0x1C0(%r9)
+	vmovups %zmm10, -0x180(%r9)
+	vmovups %zmm11, -0x140(%r9)
+	vmovups	%zmm12, -0x100(%r9)
+	vmovups %zmm13, -0xC0(%r9)
+	vmovups %zmm14, -0x80(%r9)
+	vmovups %zmm15, -0x40(%r9)
+	ret
+
+L(1024bytesormore):
+	cmp	%rsi, %rdi
+	ja	L(1024bytesormore_bkw)
+	sub	$512, %r9
+	vmovups -0x200(%rcx), %zmm8
+	vmovups -0x1C0(%rcx), %zmm9
+	vmovups -0x180(%rcx), %zmm10
+	vmovups -0x140(%rcx), %zmm11
+	vmovups	-0x100(%rcx), %zmm12
+	vmovups -0xC0(%rcx), %zmm13
+	vmovups -0x80(%rcx), %zmm14
+	vmovups -0x40(%rcx), %zmm15
+	prefetcht1 (%rsi)
+	prefetcht1 0x40(%rsi)
+	prefetcht1 0x80(%rsi)
+	prefetcht1 0xC0(%rsi)
+	prefetcht1 0x100(%rsi)
+	prefetcht1 0x140(%rsi)
+	prefetcht1 0x180(%rsi)
+	prefetcht1 0x1C0(%rsi)
+
+/* Loop with unaligned memory access.  */
+L(gobble_512bytes_loop):
+	vmovups	(%rsi), %zmm0
+	vmovups 0x40(%rsi), %zmm1
+	vmovups 0x80(%rsi), %zmm2
+	vmovups 0xC0(%rsi), %zmm3
+	vmovups	0x100(%rsi), %zmm4
+	vmovups 0x140(%rsi), %zmm5
+	vmovups 0x180(%rsi), %zmm6
+	vmovups 0x1C0(%rsi), %zmm7
+	add	$512, %rsi
+	prefetcht1 (%rsi)
+	prefetcht1 0x40(%rsi)
+	prefetcht1 0x80(%rsi)
+	prefetcht1 0xC0(%rsi)
+	prefetcht1 0x100(%rsi)
+	prefetcht1 0x140(%rsi)
+	prefetcht1 0x180(%rsi)
+	prefetcht1 0x1C0(%rsi)
+	vmovups	%zmm0, (%rdi)
+	vmovups %zmm1, 0x40(%rdi)
+	vmovups %zmm2, 0x80(%rdi)
+	vmovups %zmm3, 0xC0(%rdi)
+	vmovups	%zmm4, 0x100(%rdi)
+	vmovups %zmm5, 0x140(%rdi)
+	vmovups %zmm6, 0x180(%rdi)
+	vmovups %zmm7, 0x1C0(%rdi)
+	add	$512, %rdi
+	cmp	%r9, %rdi
+	jb	L(gobble_512bytes_loop)
+	vmovups %zmm8, (%r9)
+	vmovups %zmm9, 0x40(%r9)
+	vmovups %zmm10, 0x80(%r9)
+	vmovups %zmm11, 0xC0(%r9)
+	vmovups %zmm12, 0x100(%r9)
+	vmovups %zmm13, 0x140(%r9)
+	vmovups %zmm14, 0x180(%r9)
+	vmovups %zmm15, 0x1C0(%r9)
+	ret
+
+L(1024bytesormore_bkw):
+	add	$512, %rdi
+	vmovups	0x1C0(%rsi), %zmm8
+	vmovups 0x180(%rsi), %zmm9
+	vmovups 0x140(%rsi), %zmm10
+	vmovups 0x100(%rsi), %zmm11
+	vmovups	0xC0(%rsi), %zmm12
+	vmovups 0x80(%rsi), %zmm13
+	vmovups 0x40(%rsi), %zmm14
+	vmovups (%rsi), %zmm15
+	prefetcht1 -0x40(%rcx)
+	prefetcht1 -0x80(%rcx)
+	prefetcht1 -0xC0(%rcx)
+	prefetcht1 -0x100(%rcx)
+	prefetcht1 -0x140(%rcx)
+	prefetcht1 -0x180(%rcx)
+	prefetcht1 -0x1C0(%rcx)
+	prefetcht1 -0x200(%rcx)
+
+/* Backward loop with unaligned memory access.  */
+L(gobble_512bytes_loop_bkw):
+	vmovups -0x40(%rcx), %zmm0
+	vmovups -0x80(%rcx), %zmm1
+	vmovups -0xC0(%rcx), %zmm2
+	vmovups	-0x100(%rcx), %zmm3
+	vmovups -0x140(%rcx), %zmm4
+	vmovups -0x180(%rcx), %zmm5
+	vmovups -0x1C0(%rcx), %zmm6
+	vmovups	-0x200(%rcx), %zmm7
+	sub	$512, %rcx
+	prefetcht1 -0x40(%rcx)
+	prefetcht1 -0x80(%rcx)
+	prefetcht1 -0xC0(%rcx)
+	prefetcht1 -0x100(%rcx)
+	prefetcht1 -0x140(%rcx)
+	prefetcht1 -0x180(%rcx)
+	prefetcht1 -0x1C0(%rcx)
+	prefetcht1 -0x200(%rcx)
+	vmovups %zmm0, -0x40(%r9)
+	vmovups %zmm1, -0x80(%r9)
+	vmovups %zmm2, -0xC0(%r9)
+	vmovups	%zmm3, -0x100(%r9)
+	vmovups %zmm4, -0x140(%r9)
+	vmovups %zmm5, -0x180(%r9)
+	vmovups %zmm6, -0x1C0(%r9)
+	vmovups	%zmm7, -0x200(%r9)
+	sub	$512, %r9
+	cmp	%rdi, %r9
+	ja	L(gobble_512bytes_loop_bkw)
+	vmovups %zmm8, -0x40(%rdi)
+	vmovups %zmm9, -0x80(%rdi)
+	vmovups %zmm10, -0xC0(%rdi)
+	vmovups %zmm11, -0x100(%rdi)
+	vmovups %zmm12, -0x140(%rdi)
+	vmovups %zmm13, -0x180(%rdi)
+	vmovups %zmm14, -0x1C0(%rdi)
+	vmovups %zmm15, -0x200(%rdi)
+	ret
+
+L(preloop_large):
+	cmp	%rsi, %rdi
+	ja	L(preloop_large_bkw)
+	vmovups	(%rsi), %zmm4
+	vmovups	0x40(%rsi), %zmm5
+
+/* Align destination for access with non-temporal stores in the loop.  */
+	mov	%rdi, %r8
+	and	$-0x80, %rdi
+	add	$0x80, %rdi
+	sub	%rdi, %r8
+	sub	%r8, %rsi
+	add	%r8, %rdx
+L(gobble_256bytes_nt_loop):
+	prefetcht1 0x200(%rsi)
+	prefetcht1 0x240(%rsi)
+	prefetcht1 0x280(%rsi)
+	prefetcht1 0x2C0(%rsi)
+	prefetcht1 0x300(%rsi)
+	prefetcht1 0x340(%rsi)
+	prefetcht1 0x380(%rsi)
+	prefetcht1 0x3C0(%rsi)
+	vmovdqu64 (%rsi), %zmm0
+	vmovdqu64 0x40(%rsi), %zmm1
+	vmovdqu64 0x80(%rsi), %zmm2
+	vmovdqu64 0xC0(%rsi), %zmm3
+	vmovntdq %zmm0, (%rdi)
+	vmovntdq %zmm1, 0x40(%rdi)
+	vmovntdq %zmm2, 0x80(%rdi)
+	vmovntdq %zmm3, 0xC0(%rdi)
+	sub	$256, %rdx
+	add	$256, %rsi
+	add	$256, %rdi
+	cmp	$256, %rdx
+	ja	L(gobble_256bytes_nt_loop)
+	sfence
+	vmovups	%zmm4, (%rax)
+	vmovups	%zmm5, 0x40(%rax)
+	jmp	L(check)
+
+L(preloop_large_bkw):
+	vmovups -0x80(%rcx), %zmm4
+	vmovups -0x40(%rcx), %zmm5
+
+/* Align end of destination for access with non-temporal stores.  */
+	mov	%r9, %r8
+	and	$-0x80, %r9
+	sub	%r9, %r8
+	sub	%r8, %rcx
+	sub	%r8, %rdx
+	add	%r9, %r8
+L(gobble_256bytes_nt_loop_bkw):
+	prefetcht1 -0x400(%rcx)
+	prefetcht1 -0x3C0(%rcx)
+	prefetcht1 -0x380(%rcx)
+	prefetcht1 -0x340(%rcx)
+	prefetcht1 -0x300(%rcx)
+	prefetcht1 -0x2C0(%rcx)
+	prefetcht1 -0x280(%rcx)
+	prefetcht1 -0x240(%rcx)
+	vmovdqu64 -0x100(%rcx), %zmm0
+	vmovdqu64 -0xC0(%rcx), %zmm1
+	vmovdqu64 -0x80(%rcx), %zmm2
+	vmovdqu64 -0x40(%rcx), %zmm3
+	vmovntdq %zmm0,	-0x100(%r9)
+	vmovntdq %zmm1,	-0xC0(%r9)
+	vmovntdq %zmm2,	-0x80(%r9)
+	vmovntdq %zmm3,	-0x40(%r9)
+	sub	$256, %rdx
+	sub	$256, %rcx
+	sub	$256, %r9
+	cmp	$256, %rdx
+	ja	L(gobble_256bytes_nt_loop_bkw)
+	sfence
+	vmovups	%zmm4, -0x80(%r8)
+	vmovups	%zmm5, -0x40(%r8)
+	jmp	L(check)
+END (__memmove_avx512_no_vzeroupper)
+
+# ifdef SHARED
+strong_alias (__memmove_avx512_no_vzeroupper, __memcpy_avx512_no_vzeroupper)
+strong_alias (__memmove_chk_avx512_no_vzeroupper, __memcpy_chk_avx512_no_vzeroupper)
+# endif
+#endif