glibc/sysdeps/hppa/sub_n.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

59 lines
1.6 KiB
ArmAsm

;! HP-PA __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
;! store difference in a third limb vector.
;! Copyright (C) 1992-2019 Free Software Foundation, Inc.
;! This file is part of the GNU MP Library.
;! The GNU MP 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 MP 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 MP Library. If not, see
;! <https://www.gnu.org/licenses/>.
;! INPUT PARAMETERS
;! res_ptr gr26
;! s1_ptr gr25
;! s2_ptr gr24
;! size gr23
;! One might want to unroll this as for other processors, but it turns
;! out that the data cache contention after a store makes such
;! unrolling useless. We can't come under 5 cycles/limb anyway.
.text
.export __mpn_sub_n
__mpn_sub_n:
.proc
.callinfo frame=0,no_calls
.entry
ldws,ma 4(%r25),%r21
ldws,ma 4(%r24),%r20
addib,= -1,%r23,L$end ;! check for (SIZE == 1)
sub %r21,%r20,%r28 ;! subtract first limbs ignoring cy
L$loop: ldws,ma 4(%r25),%r21
ldws,ma 4(%r24),%r20
stws,ma %r28,4(%r26)
addib,<> -1,%r23,L$loop
subb %r21,%r20,%r28
L$end: stws %r28,0(%r26)
addc %r0,%r0,%r28
bv 0(%r2)
subi 1,%r28,%r28
.exit
.procend