mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 15:20:10 +00:00
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
239 lines
3.9 KiB
ArmAsm
239 lines
3.9 KiB
ArmAsm
/* Optimized wcslen for x86-64 with SSE2.
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Copyright (C) 2011-2019 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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#include <sysdep.h>
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.text
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ENTRY (__wcslen)
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cmpl $0, (%rdi)
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jz L(exit_tail0)
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cmpl $0, 4(%rdi)
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jz L(exit_tail1)
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cmpl $0, 8(%rdi)
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jz L(exit_tail2)
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cmpl $0, 12(%rdi)
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jz L(exit_tail3)
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cmpl $0, 16(%rdi)
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jz L(exit_tail4)
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cmpl $0, 20(%rdi)
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jz L(exit_tail5)
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cmpl $0, 24(%rdi)
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jz L(exit_tail6)
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cmpl $0, 28(%rdi)
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jz L(exit_tail7)
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pxor %xmm0, %xmm0
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lea 32(%rdi), %rax
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lea 16(%rdi), %rcx
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and $-16, %rax
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pcmpeqd (%rax), %xmm0
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pmovmskb %xmm0, %edx
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pxor %xmm1, %xmm1
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm1
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pmovmskb %xmm1, %edx
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pxor %xmm2, %xmm2
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm2
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pmovmskb %xmm2, %edx
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pxor %xmm3, %xmm3
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm3
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pmovmskb %xmm3, %edx
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm0
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pmovmskb %xmm0, %edx
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm1
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pmovmskb %xmm1, %edx
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm2
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pmovmskb %xmm2, %edx
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm3
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pmovmskb %xmm3, %edx
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm0
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pmovmskb %xmm0, %edx
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm1
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pmovmskb %xmm1, %edx
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm2
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pmovmskb %xmm2, %edx
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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pcmpeqd (%rax), %xmm3
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pmovmskb %xmm3, %edx
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test %edx, %edx
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lea 16(%rax), %rax
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jnz L(exit)
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and $-0x40, %rax
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.p2align 4
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L(aligned_64_loop):
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movaps (%rax), %xmm0
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movaps 16(%rax), %xmm1
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movaps 32(%rax), %xmm2
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movaps 48(%rax), %xmm6
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pminub %xmm1, %xmm0
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pminub %xmm6, %xmm2
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pminub %xmm0, %xmm2
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pcmpeqd %xmm3, %xmm2
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pmovmskb %xmm2, %edx
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test %edx, %edx
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lea 64(%rax), %rax
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jz L(aligned_64_loop)
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pcmpeqd -64(%rax), %xmm3
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pmovmskb %xmm3, %edx
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test %edx, %edx
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lea 48(%rcx), %rcx
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jnz L(exit)
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pcmpeqd %xmm1, %xmm3
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pmovmskb %xmm3, %edx
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test %edx, %edx
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lea -16(%rcx), %rcx
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jnz L(exit)
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pcmpeqd -32(%rax), %xmm3
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pmovmskb %xmm3, %edx
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test %edx, %edx
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lea -16(%rcx), %rcx
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jnz L(exit)
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pcmpeqd %xmm6, %xmm3
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pmovmskb %xmm3, %edx
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test %edx, %edx
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lea -16(%rcx), %rcx
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jnz L(exit)
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jmp L(aligned_64_loop)
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.p2align 4
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L(exit):
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sub %rcx, %rax
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shr $2, %rax
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test %dl, %dl
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jz L(exit_high)
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mov %dl, %cl
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and $15, %cl
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jz L(exit_1)
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ret
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.p2align 4
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L(exit_high):
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mov %dh, %ch
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and $15, %ch
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jz L(exit_3)
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add $2, %rax
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ret
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.p2align 4
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L(exit_1):
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add $1, %rax
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ret
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.p2align 4
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L(exit_3):
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add $3, %rax
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ret
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.p2align 4
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L(exit_tail0):
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xor %rax, %rax
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ret
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.p2align 4
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L(exit_tail1):
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mov $1, %rax
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ret
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.p2align 4
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L(exit_tail2):
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mov $2, %rax
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ret
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.p2align 4
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L(exit_tail3):
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mov $3, %rax
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ret
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.p2align 4
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L(exit_tail4):
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mov $4, %rax
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ret
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.p2align 4
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L(exit_tail5):
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mov $5, %rax
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ret
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.p2align 4
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L(exit_tail6):
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mov $6, %rax
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ret
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.p2align 4
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L(exit_tail7):
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mov $7, %rax
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ret
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END (__wcslen)
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weak_alias(__wcslen, wcslen)
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