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GNU C Library master sources branch hjl/avx512f-mem/old created. glibc-2.22-678-g9c4de13
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 15 Jan 2016 20:44:43 -0000
- Subject: GNU C Library master sources branch hjl/avx512f-mem/old created. glibc-2.22-678-g9c4de13
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".
The branch, hjl/avx512f-mem/old has been created
at 9c4de13284bb910d9169f071218ad35eef1b8a1d (commit)
- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=9c4de13284bb910d9169f071218ad35eef1b8a1d
commit 9c4de13284bb910d9169f071218ad35eef1b8a1d
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jan 15 12:21:15 2016 -0800
Use prefetchnta with non-temporal stores
diff --git a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
index 2c96046..746c1e7 100644
--- a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
+++ b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
@@ -340,15 +340,15 @@ L(preloop_large):
sub %rdi, %r8
sub %r8, %rsi
add %r8, %rdx
- prefetcht1 (%rsi)
- prefetcht1 0x40(%rsi)
- prefetcht1 0x80(%rsi)
- prefetcht1 0xC0(%rsi)
+ prefetchnta (%rsi)
+ prefetchnta 0x40(%rsi)
+ prefetchnta 0x80(%rsi)
+ prefetchnta 0xC0(%rsi)
L(gobble_256bytes_nt_loop):
- prefetcht1 0x100(%rsi)
- prefetcht1 0x140(%rsi)
- prefetcht1 0x180(%rsi)
- prefetcht1 0x1C0(%rsi)
+ prefetchnta 0x100(%rsi)
+ prefetchnta 0x140(%rsi)
+ prefetchnta 0x180(%rsi)
+ prefetchnta 0x1C0(%rsi)
vmovdqu64 (%rsi), %zmm0
vmovdqu64 0x40(%rsi), %zmm1
vmovdqu64 0x80(%rsi), %zmm2
@@ -378,15 +378,15 @@ L(preloop_large_bkw):
sub %r8, %rcx
sub %r8, %rdx
add %r9, %r8
- prefetcht1 -0x100(%rcx)
- prefetcht1 -0xC0(%rcx)
- prefetcht1 -0x80(%rcx)
- prefetcht1 -0x40(%rcx)
+ prefetchnta -0x100(%rcx)
+ prefetchnta -0xC0(%rcx)
+ prefetchnta -0x80(%rcx)
+ prefetchnta -0x40(%rcx)
L(gobble_256bytes_nt_loop_bkw):
- prefetcht1 -0x200(%rcx)
- prefetcht1 -0x1C0(%rcx)
- prefetcht1 -0x180(%rcx)
- prefetcht1 -0x140(%rcx)
+ prefetchnta -0x200(%rcx)
+ prefetchnta -0x1C0(%rcx)
+ prefetchnta -0x180(%rcx)
+ prefetchnta -0x140(%rcx)
vmovdqu64 -0x100(%rcx), %zmm0
vmovdqu64 -0xC0(%rcx), %zmm1
vmovdqu64 -0x80(%rcx), %zmm2
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=890a46047fc84a97aec0321c4e52de33ec0f00c1
commit 890a46047fc84a97aec0321c4e52de33ec0f00c1
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jan 15 12:15:53 2016 -0800
Group prefetcht1
diff --git a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
index b12c80e..2c96046 100644
--- a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
+++ b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
@@ -345,14 +345,14 @@ L(preloop_large):
prefetcht1 0x80(%rsi)
prefetcht1 0xC0(%rsi)
L(gobble_256bytes_nt_loop):
- vmovdqu64 (%rsi), %zmm0
prefetcht1 0x100(%rsi)
- vmovdqu64 0x40(%rsi), %zmm1
prefetcht1 0x140(%rsi)
- vmovdqu64 0x80(%rsi), %zmm2
prefetcht1 0x180(%rsi)
- vmovdqu64 0xC0(%rsi), %zmm3
prefetcht1 0x1C0(%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)
@@ -383,14 +383,14 @@ L(preloop_large_bkw):
prefetcht1 -0x80(%rcx)
prefetcht1 -0x40(%rcx)
L(gobble_256bytes_nt_loop_bkw):
- vmovdqu64 -0x100(%rcx), %zmm0
prefetcht1 -0x200(%rcx)
- vmovdqu64 -0xC0(%rcx), %zmm1
prefetcht1 -0x1C0(%rcx)
- vmovdqu64 -0x80(%rcx), %zmm2
prefetcht1 -0x180(%rcx)
- vmovdqu64 -0x40(%rcx), %zmm3
prefetcht1 -0x140(%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)
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=e70cffd77b34d2a02d634d33d11802b50899b78b
commit e70cffd77b34d2a02d634d33d11802b50899b78b
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jan 15 12:14:18 2016 -0800
Use vmovdqu64 load with vmovntdq store
diff --git a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
index e1d26a1..b12c80e 100644
--- a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
+++ b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
@@ -345,13 +345,13 @@ L(preloop_large):
prefetcht1 0x80(%rsi)
prefetcht1 0xC0(%rsi)
L(gobble_256bytes_nt_loop):
- vmovups (%rsi), %zmm0
+ vmovdqu64 (%rsi), %zmm0
prefetcht1 0x100(%rsi)
- vmovups 0x40(%rsi), %zmm1
+ vmovdqu64 0x40(%rsi), %zmm1
prefetcht1 0x140(%rsi)
- vmovups 0x80(%rsi), %zmm2
+ vmovdqu64 0x80(%rsi), %zmm2
prefetcht1 0x180(%rsi)
- vmovups 0xC0(%rsi), %zmm3
+ vmovdqu64 0xC0(%rsi), %zmm3
prefetcht1 0x1C0(%rsi)
vmovntdq %zmm0, (%rdi)
vmovntdq %zmm1, 0x40(%rdi)
@@ -383,13 +383,13 @@ L(preloop_large_bkw):
prefetcht1 -0x80(%rcx)
prefetcht1 -0x40(%rcx)
L(gobble_256bytes_nt_loop_bkw):
- vmovups -0x100(%rcx), %zmm0
+ vmovdqu64 -0x100(%rcx), %zmm0
prefetcht1 -0x200(%rcx)
- vmovups -0xC0(%rcx), %zmm1
+ vmovdqu64 -0xC0(%rcx), %zmm1
prefetcht1 -0x1C0(%rcx)
- vmovups -0x80(%rcx), %zmm2
+ vmovdqu64 -0x80(%rcx), %zmm2
prefetcht1 -0x180(%rcx)
- vmovups -0x40(%rcx), %zmm3
+ vmovdqu64 -0x40(%rcx), %zmm3
prefetcht1 -0x140(%rcx)
vmovntdq %zmm0, -0x100(%r9)
vmovntdq %zmm1, -0xC0(%r9)
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=754cca3aef2a7b8032156642c28e5d727d8374e2
commit 754cca3aef2a7b8032156642c28e5d727d8374e2
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jan 15 12:12:13 2016 -0800
Strip ^M
diff --git a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
index cc02934..e1d26a1 100644
--- a/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
+++ b/sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S
@@ -1,410 +1,410 @@
-/* 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
-#endif
-
- .section .text,"ax",@progbits
-#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
- 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
- prefetcht1 (%rsi)
- prefetcht1 0x40(%rsi)
- prefetcht1 0x80(%rsi)
- prefetcht1 0xC0(%rsi)
-L(gobble_256bytes_nt_loop):
- vmovups (%rsi), %zmm0
- prefetcht1 0x100(%rsi)
- vmovups 0x40(%rsi), %zmm1
- prefetcht1 0x140(%rsi)
- vmovups 0x80(%rsi), %zmm2
- prefetcht1 0x180(%rsi)
- vmovups 0xC0(%rsi), %zmm3
- prefetcht1 0x1C0(%rsi)
- 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
- prefetcht1 -0x100(%rcx)
- prefetcht1 -0xC0(%rcx)
- prefetcht1 -0x80(%rcx)
- prefetcht1 -0x40(%rcx)
-L(gobble_256bytes_nt_loop_bkw):
- vmovups -0x100(%rcx), %zmm0
- prefetcht1 -0x200(%rcx)
- vmovups -0xC0(%rcx), %zmm1
- prefetcht1 -0x1C0(%rcx)
- vmovups -0x80(%rcx), %zmm2
- prefetcht1 -0x180(%rcx)
- vmovups -0x40(%rcx), %zmm3
- prefetcht1 -0x140(%rcx)
- 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
+/* 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
+#endif
+
+ .section .text,"ax",@progbits
+#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
+ 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
+ prefetcht1 (%rsi)
+ prefetcht1 0x40(%rsi)
+ prefetcht1 0x80(%rsi)
+ prefetcht1 0xC0(%rsi)
+L(gobble_256bytes_nt_loop):
+ vmovups (%rsi), %zmm0
+ prefetcht1 0x100(%rsi)
+ vmovups 0x40(%rsi), %zmm1
+ prefetcht1 0x140(%rsi)
+ vmovups 0x80(%rsi), %zmm2
+ prefetcht1 0x180(%rsi)
+ vmovups 0xC0(%rsi), %zmm3
+ prefetcht1 0x1C0(%rsi)
+ 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
+ prefetcht1 -0x100(%rcx)
+ prefetcht1 -0xC0(%rcx)
+ prefetcht1 -0x80(%rcx)
+ prefetcht1 -0x40(%rcx)
+L(gobble_256bytes_nt_loop_bkw):
+ vmovups -0x100(%rcx), %zmm0
+ prefetcht1 -0x200(%rcx)
+ vmovups -0xC0(%rcx), %zmm1
+ prefetcht1 -0x1C0(%rcx)
+ vmovups -0x80(%rcx), %zmm2
+ prefetcht1 -0x180(%rcx)
+ vmovups -0x40(%rcx), %zmm3
+ prefetcht1 -0x140(%rcx)
+ 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
-----------------------------------------------------------------------
hooks/post-receive
--
GNU C Library master sources