2016-03-28 20:15:59 +00:00
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/* memmove/memcpy/mempcpy optimized with AVX512 for KNL hardware.
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2022-01-01 18:54:23 +00:00
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Copyright (C) 2016-2022 Free Software Foundation, Inc.
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2016-01-15 21:49:45 +00:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
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<https://www.gnu.org/licenses/>. */
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2016-01-15 21:49:45 +00:00
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2016-03-28 20:15:59 +00:00
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#include <sysdep.h>
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2016-07-01 12:54:43 +00:00
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#if IS_IN (libc)
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2016-03-28 20:15:59 +00:00
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# include "asm-syntax.h"
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.section .text.avx512,"ax",@progbits
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ENTRY (__mempcpy_chk_avx512_no_vzeroupper)
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2019-01-21 19:27:25 +00:00
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cmp %RDX_LP, %RCX_LP
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2016-03-28 20:15:59 +00:00
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jb HIDDEN_JUMPTARGET (__chk_fail)
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END (__mempcpy_chk_avx512_no_vzeroupper)
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ENTRY (__mempcpy_avx512_no_vzeroupper)
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2019-01-21 19:27:25 +00:00
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mov %RDI_LP, %RAX_LP
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add %RDX_LP, %RAX_LP
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2016-03-28 20:15:59 +00:00
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jmp L(start)
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END (__mempcpy_avx512_no_vzeroupper)
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ENTRY (__memmove_chk_avx512_no_vzeroupper)
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2019-01-21 19:27:25 +00:00
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cmp %RDX_LP, %RCX_LP
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2016-03-28 20:15:59 +00:00
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jb HIDDEN_JUMPTARGET (__chk_fail)
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END (__memmove_chk_avx512_no_vzeroupper)
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ENTRY (__memmove_avx512_no_vzeroupper)
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2019-01-21 19:27:25 +00:00
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mov %RDI_LP, %RAX_LP
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2016-03-28 20:15:59 +00:00
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# ifdef USE_AS_MEMPCPY
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2019-01-21 19:27:25 +00:00
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add %RDX_LP, %RAX_LP
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2016-03-28 20:15:59 +00:00
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# endif
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L(start):
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2019-01-21 19:27:25 +00:00
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# ifdef __ILP32__
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/* Clear the upper 32 bits. */
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mov %edx, %edx
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# endif
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2016-03-28 20:15:59 +00:00
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lea (%rsi, %rdx), %rcx
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lea (%rdi, %rdx), %r9
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cmp $512, %rdx
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ja L(512bytesormore)
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L(check):
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cmp $16, %rdx
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jbe L(less_16bytes)
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cmp $256, %rdx
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jb L(less_256bytes)
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vmovups (%rsi), %zmm0
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vmovups 0x40(%rsi), %zmm1
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vmovups 0x80(%rsi), %zmm2
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vmovups 0xC0(%rsi), %zmm3
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vmovups -0x100(%rcx), %zmm4
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vmovups -0xC0(%rcx), %zmm5
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vmovups -0x80(%rcx), %zmm6
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vmovups -0x40(%rcx), %zmm7
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vmovups %zmm0, (%rdi)
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vmovups %zmm1, 0x40(%rdi)
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vmovups %zmm2, 0x80(%rdi)
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vmovups %zmm3, 0xC0(%rdi)
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vmovups %zmm4, -0x100(%r9)
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vmovups %zmm5, -0xC0(%r9)
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vmovups %zmm6, -0x80(%r9)
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vmovups %zmm7, -0x40(%r9)
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ret
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L(less_256bytes):
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cmp $128, %dl
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jb L(less_128bytes)
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vmovups (%rsi), %zmm0
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vmovups 0x40(%rsi), %zmm1
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vmovups -0x80(%rcx), %zmm2
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vmovups -0x40(%rcx), %zmm3
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vmovups %zmm0, (%rdi)
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vmovups %zmm1, 0x40(%rdi)
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vmovups %zmm2, -0x80(%r9)
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vmovups %zmm3, -0x40(%r9)
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ret
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L(less_128bytes):
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cmp $64, %dl
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jb L(less_64bytes)
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vmovdqu (%rsi), %ymm0
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vmovdqu 0x20(%rsi), %ymm1
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vmovdqu -0x40(%rcx), %ymm2
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vmovdqu -0x20(%rcx), %ymm3
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vmovdqu %ymm0, (%rdi)
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vmovdqu %ymm1, 0x20(%rdi)
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vmovdqu %ymm2, -0x40(%r9)
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vmovdqu %ymm3, -0x20(%r9)
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ret
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L(less_64bytes):
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cmp $32, %dl
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jb L(less_32bytes)
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vmovdqu (%rsi), %ymm0
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vmovdqu -0x20(%rcx), %ymm1
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vmovdqu %ymm0, (%rdi)
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vmovdqu %ymm1, -0x20(%r9)
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ret
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L(less_32bytes):
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vmovdqu (%rsi), %xmm0
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vmovdqu -0x10(%rcx), %xmm1
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vmovdqu %xmm0, (%rdi)
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vmovdqu %xmm1, -0x10(%r9)
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ret
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L(less_16bytes):
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cmp $8, %dl
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jb L(less_8bytes)
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movq (%rsi), %rsi
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movq -0x8(%rcx), %rcx
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movq %rsi, (%rdi)
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movq %rcx, -0x8(%r9)
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ret
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L(less_8bytes):
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cmp $4, %dl
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jb L(less_4bytes)
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mov (%rsi), %esi
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mov -0x4(%rcx), %ecx
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mov %esi, (%rdi)
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mov %ecx, -0x4(%r9)
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ret
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L(less_4bytes):
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cmp $2, %dl
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jb L(less_2bytes)
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mov (%rsi), %si
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mov -0x2(%rcx), %cx
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mov %si, (%rdi)
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mov %cx, -0x2(%r9)
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ret
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L(less_2bytes):
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cmp $1, %dl
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jb L(less_1bytes)
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mov (%rsi), %cl
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mov %cl, (%rdi)
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L(less_1bytes):
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ret
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L(512bytesormore):
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# ifdef SHARED_CACHE_SIZE_HALF
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mov $SHARED_CACHE_SIZE_HALF, %r8
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# else
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mov __x86_shared_cache_size_half(%rip), %r8
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# endif
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cmp %r8, %rdx
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jae L(preloop_large)
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cmp $1024, %rdx
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ja L(1024bytesormore)
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prefetcht1 (%rsi)
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prefetcht1 0x40(%rsi)
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prefetcht1 0x80(%rsi)
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prefetcht1 0xC0(%rsi)
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prefetcht1 0x100(%rsi)
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prefetcht1 0x140(%rsi)
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prefetcht1 0x180(%rsi)
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prefetcht1 0x1C0(%rsi)
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prefetcht1 -0x200(%rcx)
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prefetcht1 -0x1C0(%rcx)
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prefetcht1 -0x180(%rcx)
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prefetcht1 -0x140(%rcx)
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prefetcht1 -0x100(%rcx)
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prefetcht1 -0xC0(%rcx)
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prefetcht1 -0x80(%rcx)
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prefetcht1 -0x40(%rcx)
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vmovups (%rsi), %zmm0
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vmovups 0x40(%rsi), %zmm1
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vmovups 0x80(%rsi), %zmm2
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vmovups 0xC0(%rsi), %zmm3
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vmovups 0x100(%rsi), %zmm4
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vmovups 0x140(%rsi), %zmm5
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vmovups 0x180(%rsi), %zmm6
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vmovups 0x1C0(%rsi), %zmm7
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vmovups -0x200(%rcx), %zmm8
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vmovups -0x1C0(%rcx), %zmm9
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vmovups -0x180(%rcx), %zmm10
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vmovups -0x140(%rcx), %zmm11
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vmovups -0x100(%rcx), %zmm12
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vmovups -0xC0(%rcx), %zmm13
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vmovups -0x80(%rcx), %zmm14
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vmovups -0x40(%rcx), %zmm15
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vmovups %zmm0, (%rdi)
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vmovups %zmm1, 0x40(%rdi)
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vmovups %zmm2, 0x80(%rdi)
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vmovups %zmm3, 0xC0(%rdi)
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vmovups %zmm4, 0x100(%rdi)
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vmovups %zmm5, 0x140(%rdi)
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vmovups %zmm6, 0x180(%rdi)
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vmovups %zmm7, 0x1C0(%rdi)
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vmovups %zmm8, -0x200(%r9)
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vmovups %zmm9, -0x1C0(%r9)
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vmovups %zmm10, -0x180(%r9)
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vmovups %zmm11, -0x140(%r9)
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vmovups %zmm12, -0x100(%r9)
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vmovups %zmm13, -0xC0(%r9)
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vmovups %zmm14, -0x80(%r9)
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vmovups %zmm15, -0x40(%r9)
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ret
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L(1024bytesormore):
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cmp %rsi, %rdi
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ja L(1024bytesormore_bkw)
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sub $512, %r9
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vmovups -0x200(%rcx), %zmm8
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vmovups -0x1C0(%rcx), %zmm9
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vmovups -0x180(%rcx), %zmm10
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vmovups -0x140(%rcx), %zmm11
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vmovups -0x100(%rcx), %zmm12
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vmovups -0xC0(%rcx), %zmm13
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vmovups -0x80(%rcx), %zmm14
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vmovups -0x40(%rcx), %zmm15
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prefetcht1 (%rsi)
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prefetcht1 0x40(%rsi)
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prefetcht1 0x80(%rsi)
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prefetcht1 0xC0(%rsi)
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prefetcht1 0x100(%rsi)
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prefetcht1 0x140(%rsi)
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prefetcht1 0x180(%rsi)
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prefetcht1 0x1C0(%rsi)
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/* Loop with unaligned memory access. */
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L(gobble_512bytes_loop):
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vmovups (%rsi), %zmm0
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vmovups 0x40(%rsi), %zmm1
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vmovups 0x80(%rsi), %zmm2
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vmovups 0xC0(%rsi), %zmm3
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vmovups 0x100(%rsi), %zmm4
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vmovups 0x140(%rsi), %zmm5
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vmovups 0x180(%rsi), %zmm6
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vmovups 0x1C0(%rsi), %zmm7
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add $512, %rsi
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prefetcht1 (%rsi)
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prefetcht1 0x40(%rsi)
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prefetcht1 0x80(%rsi)
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prefetcht1 0xC0(%rsi)
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prefetcht1 0x100(%rsi)
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prefetcht1 0x140(%rsi)
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prefetcht1 0x180(%rsi)
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prefetcht1 0x1C0(%rsi)
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vmovups %zmm0, (%rdi)
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vmovups %zmm1, 0x40(%rdi)
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vmovups %zmm2, 0x80(%rdi)
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vmovups %zmm3, 0xC0(%rdi)
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vmovups %zmm4, 0x100(%rdi)
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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
|
|
|
|
|
|
2018-05-22 08:37:59 +00:00
|
|
|
mov %rdi, %r11
|
2016-03-28 20:15:59 +00:00
|
|
|
/* 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
|
2018-05-22 08:37:59 +00:00
|
|
|
vmovups %zmm4, (%r11)
|
|
|
|
|
vmovups %zmm5, 0x40(%r11)
|
2016-03-28 20:15:59 +00:00
|
|
|
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)
|
|
|
|
|
|
|
|
|
|
strong_alias (__memmove_avx512_no_vzeroupper, __memcpy_avx512_no_vzeroupper)
|
|
|
|
|
strong_alias (__memmove_chk_avx512_no_vzeroupper, __memcpy_chk_avx512_no_vzeroupper)
|
|
|
|
|
#endif
|
