mirror of
https://sourceware.org/git/glibc.git
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5a82c74822
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
276 lines
6.1 KiB
ArmAsm
276 lines
6.1 KiB
ArmAsm
/* strcat with AVX2
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Copyright (C) 2011-2018 Free Software Foundation, Inc.
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Contributed by Intel Corporation.
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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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<https://www.gnu.org/licenses/>. */
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#if IS_IN (libc)
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# include <sysdep.h>
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# ifndef STRCAT
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# define STRCAT __strcat_avx2
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# endif
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# define USE_AS_STRCAT
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/* Number of bytes in a vector register */
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# define VEC_SIZE 32
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.section .text.avx,"ax",@progbits
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ENTRY (STRCAT)
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mov %rdi, %r9
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# ifdef USE_AS_STRNCAT
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mov %rdx, %r8
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# endif
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xor %eax, %eax
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mov %edi, %ecx
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and $((VEC_SIZE * 4) - 1), %ecx
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vpxor %xmm6, %xmm6, %xmm6
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cmp $(VEC_SIZE * 3), %ecx
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ja L(fourth_vector_boundary)
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vpcmpeqb (%rdi), %ymm6, %ymm0
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vpmovmskb %ymm0, %edx
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test %edx, %edx
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jnz L(exit_null_on_first_vector)
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mov %rdi, %rax
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and $-VEC_SIZE, %rax
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jmp L(align_vec_size_start)
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L(fourth_vector_boundary):
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mov %rdi, %rax
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and $-VEC_SIZE, %rax
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vpcmpeqb (%rax), %ymm6, %ymm0
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mov $-1, %r10d
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sub %rax, %rcx
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shl %cl, %r10d
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vpmovmskb %ymm0, %edx
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and %r10d, %edx
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jnz L(exit)
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L(align_vec_size_start):
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vpcmpeqb VEC_SIZE(%rax), %ymm6, %ymm0
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vpmovmskb %ymm0, %edx
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test %edx, %edx
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jnz L(exit_null_on_second_vector)
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vpcmpeqb (VEC_SIZE * 2)(%rax), %ymm6, %ymm1
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vpmovmskb %ymm1, %edx
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test %edx, %edx
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jnz L(exit_null_on_third_vector)
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vpcmpeqb (VEC_SIZE * 3)(%rax), %ymm6, %ymm2
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vpmovmskb %ymm2, %edx
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test %edx, %edx
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jnz L(exit_null_on_fourth_vector)
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vpcmpeqb (VEC_SIZE * 4)(%rax), %ymm6, %ymm3
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vpmovmskb %ymm3, %edx
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test %edx, %edx
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jnz L(exit_null_on_fifth_vector)
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vpcmpeqb (VEC_SIZE * 5)(%rax), %ymm6, %ymm0
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add $(VEC_SIZE * 4), %rax
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vpmovmskb %ymm0, %edx
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test %edx, %edx
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jnz L(exit_null_on_second_vector)
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vpcmpeqb (VEC_SIZE * 2)(%rax), %ymm6, %ymm1
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vpmovmskb %ymm1, %edx
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test %edx, %edx
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jnz L(exit_null_on_third_vector)
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vpcmpeqb (VEC_SIZE * 3)(%rax), %ymm6, %ymm2
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vpmovmskb %ymm2, %edx
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test %edx, %edx
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jnz L(exit_null_on_fourth_vector)
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vpcmpeqb (VEC_SIZE * 4)(%rax), %ymm6, %ymm3
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vpmovmskb %ymm3, %edx
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test %edx, %edx
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jnz L(exit_null_on_fifth_vector)
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vpcmpeqb (VEC_SIZE * 5)(%rax), %ymm6, %ymm0
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add $(VEC_SIZE * 4), %rax
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vpmovmskb %ymm0, %edx
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test %edx, %edx
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jnz L(exit_null_on_second_vector)
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vpcmpeqb (VEC_SIZE * 2)(%rax), %ymm6, %ymm1
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vpmovmskb %ymm1, %edx
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test %edx, %edx
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jnz L(exit_null_on_third_vector)
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vpcmpeqb (VEC_SIZE * 3)(%rax), %ymm6, %ymm2
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vpmovmskb %ymm2, %edx
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test %edx, %edx
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jnz L(exit_null_on_fourth_vector)
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vpcmpeqb (VEC_SIZE * 4)(%rax), %ymm6, %ymm3
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vpmovmskb %ymm3, %edx
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test %edx, %edx
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jnz L(exit_null_on_fifth_vector)
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vpcmpeqb (VEC_SIZE * 5)(%rax), %ymm6, %ymm0
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add $(VEC_SIZE * 4), %rax
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vpmovmskb %ymm0, %edx
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test %edx, %edx
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jnz L(exit_null_on_second_vector)
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vpcmpeqb (VEC_SIZE * 2)(%rax), %ymm6, %ymm1
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vpmovmskb %ymm1, %edx
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test %edx, %edx
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jnz L(exit_null_on_third_vector)
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vpcmpeqb (VEC_SIZE * 3)(%rax), %ymm6, %ymm2
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vpmovmskb %ymm2, %edx
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test %edx, %edx
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jnz L(exit_null_on_fourth_vector)
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vpcmpeqb (VEC_SIZE * 4)(%rax), %ymm6, %ymm3
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vpmovmskb %ymm3, %edx
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test %edx, %edx
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jnz L(exit_null_on_fifth_vector)
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test $((VEC_SIZE * 4) - 1), %rax
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jz L(align_four_vec_loop)
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vpcmpeqb (VEC_SIZE * 5)(%rax), %ymm6, %ymm0
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add $(VEC_SIZE * 5), %rax
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vpmovmskb %ymm0, %edx
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test %edx, %edx
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jnz L(exit)
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test $((VEC_SIZE * 4) - 1), %rax
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jz L(align_four_vec_loop)
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vpcmpeqb VEC_SIZE(%rax), %ymm6, %ymm1
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add $VEC_SIZE, %rax
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vpmovmskb %ymm1, %edx
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test %edx, %edx
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jnz L(exit)
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test $((VEC_SIZE * 4) - 1), %rax
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jz L(align_four_vec_loop)
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vpcmpeqb VEC_SIZE(%rax), %ymm6, %ymm2
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add $VEC_SIZE, %rax
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vpmovmskb %ymm2, %edx
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test %edx, %edx
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jnz L(exit)
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test $((VEC_SIZE * 4) - 1), %rax
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jz L(align_four_vec_loop)
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vpcmpeqb VEC_SIZE(%rax), %ymm6, %ymm3
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add $VEC_SIZE, %rax
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vpmovmskb %ymm3, %edx
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test %edx, %edx
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jnz L(exit)
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add $VEC_SIZE, %rax
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.p2align 4
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L(align_four_vec_loop):
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vmovaps (%rax), %ymm4
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vpminub VEC_SIZE(%rax), %ymm4, %ymm4
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vmovaps (VEC_SIZE * 2)(%rax), %ymm5
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vpminub (VEC_SIZE * 3)(%rax), %ymm5, %ymm5
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add $(VEC_SIZE * 4), %rax
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vpminub %ymm4, %ymm5, %ymm5
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vpcmpeqb %ymm5, %ymm6, %ymm5
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vpmovmskb %ymm5, %edx
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test %edx, %edx
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jz L(align_four_vec_loop)
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vpcmpeqb -(VEC_SIZE * 4)(%rax), %ymm6, %ymm0
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sub $(VEC_SIZE * 5), %rax
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vpmovmskb %ymm0, %edx
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test %edx, %edx
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jnz L(exit_null_on_second_vector)
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vpcmpeqb (VEC_SIZE * 2)(%rax), %ymm6, %ymm1
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vpmovmskb %ymm1, %edx
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test %edx, %edx
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jnz L(exit_null_on_third_vector)
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vpcmpeqb (VEC_SIZE * 3)(%rax), %ymm6, %ymm2
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vpmovmskb %ymm2, %edx
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test %edx, %edx
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jnz L(exit_null_on_fourth_vector)
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vpcmpeqb (VEC_SIZE * 4)(%rax), %ymm6, %ymm3
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vpmovmskb %ymm3, %edx
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sub %rdi, %rax
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bsf %rdx, %rdx
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add %rdx, %rax
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add $(VEC_SIZE * 4), %rax
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jmp L(StartStrcpyPart)
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.p2align 4
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L(exit):
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sub %rdi, %rax
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L(exit_null_on_first_vector):
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bsf %rdx, %rdx
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add %rdx, %rax
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jmp L(StartStrcpyPart)
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.p2align 4
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L(exit_null_on_second_vector):
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sub %rdi, %rax
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bsf %rdx, %rdx
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add %rdx, %rax
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add $VEC_SIZE, %rax
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jmp L(StartStrcpyPart)
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.p2align 4
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L(exit_null_on_third_vector):
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sub %rdi, %rax
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bsf %rdx, %rdx
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add %rdx, %rax
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add $(VEC_SIZE * 2), %rax
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jmp L(StartStrcpyPart)
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.p2align 4
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L(exit_null_on_fourth_vector):
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sub %rdi, %rax
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bsf %rdx, %rdx
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add %rdx, %rax
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add $(VEC_SIZE * 3), %rax
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jmp L(StartStrcpyPart)
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.p2align 4
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L(exit_null_on_fifth_vector):
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sub %rdi, %rax
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bsf %rdx, %rdx
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add %rdx, %rax
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add $(VEC_SIZE * 4), %rax
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.p2align 4
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L(StartStrcpyPart):
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lea (%r9, %rax), %rdi
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mov %rsi, %rcx
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mov %r9, %rax /* save result */
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# ifdef USE_AS_STRNCAT
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test %r8, %r8
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jz L(ExitZero)
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# define USE_AS_STRNCPY
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# endif
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# include "strcpy-avx2.S"
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#endif
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