glibc/sysdeps/sh/memset.S
Paul Eggert 5a82c74822 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 02:43:31 -07:00

89 lines
1.7 KiB
ArmAsm

/* Copyright (C) 1999-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Optimized by Toshiyasu Morita <toshiyasu.morita@hsa.hitachi.com>
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
<https://www.gnu.org/licenses/>. */
#include <sysdep.h>
/* void *memset (t, c, len); */
ENTRY(memset)
mov #12,r0
cmp/gt r6,r0
bt.s L_byte_loop_init
mov r4,r7
extu.b r5,r5
swap.b r5,r1
or r1,r5
swap.w r5,r1
or r1,r5
mov r4,r0
tst #1,r0
bt L_wordalign
mov.b r5,@r4
add #-1,r6
add #1,r4
mov r4,r0
.balignw 4,0x0009
L_wordalign:
tst #2,r0
bt L_word_loop_init
mov.w r5,@r4
add #-2,r6
add #2,r4
mov r4,r0
.balignw 4,0x0009
L_word_loop_init:
mov r6,r3
shlr2 r3
mov #7,r0
shlr r3
and r0,r6
.balignw 4,0x0009
L_2word_loop:
mov.l r5,@r4
dt r3
mov.l r5,@(4,r4)
bf.s L_2word_loop
add #8,r4
.balignw 4,0x0009
L_byte_loop_init:
tst r6,r6
bt L_byte_exit
.balignw 4,0x0009
L_byte_loop:
mov.b r5,@r4
dt r6
bf.s L_byte_loop
add #1,r4
.balignw 4,0x0009
L_byte_exit:
rts
mov r7,r0
END(memset)
libc_hidden_builtin_def (memset)