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
91 lines
2.3 KiB
ArmAsm
91 lines
2.3 KiB
ArmAsm
/* mpn_add_n -- add (or subtract) bignums.
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Copyright (C) 2013-2019 Free Software Foundation, Inc.
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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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#include <arm-features.h>
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.syntax unified
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.text
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#ifdef USE_AS_SUB_N
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# define INITC cmp r0, r0
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# define OPC sbcs
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# define RETC sbc r0, r0, r0; neg r0, r0
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# define FUNC __mpn_sub_n
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#else
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# define INITC cmn r0, #0
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# define OPC adcs
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# define RETC mov r0, #0; adc r0, r0, r0
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# define FUNC __mpn_add_n
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#endif
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/* mp_limb_t mpn_add_n(res_ptr, src1_ptr, src2_ptr, size) */
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ENTRY (FUNC)
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push { r4, r5, r6, r7, r8, r10, lr }
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cfi_adjust_cfa_offset (28)
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cfi_rel_offset (r4, 0)
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cfi_rel_offset (r5, 4)
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cfi_rel_offset (r6, 8)
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cfi_rel_offset (r7, 12)
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cfi_rel_offset (r8, 16)
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cfi_rel_offset (r10, 20)
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cfi_rel_offset (lr, 24)
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INITC /* initialize carry flag */
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tst r3, #1 /* count & 1 == 1? */
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add lr, r1, r3, lsl #2 /* compute end src1 */
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beq 1f
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ldr r4, [r1], #4 /* do one to make count even */
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ldr r5, [r2], #4
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OPC r4, r4, r5
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teq r1, lr /* end of count? (preserve carry) */
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str r4, [r0], #4
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beq 9f
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1:
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tst r3, #2 /* count & 2 == 2? */
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beq 2f
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ldm r1!, { r4, r5 } /* do two to make count 0 mod 4 */
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ldm r2!, { r6, r7 }
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OPC r4, r4, r6
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OPC r5, r5, r7
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teq r1, lr /* end of count? */
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stm r0!, { r4, r5 }
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beq 9f
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2:
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ldm r1!, { r3, r5, r7, r10 } /* do four each loop */
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ldm r2!, { r4, r6, r8, ip }
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OPC r3, r3, r4
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OPC r5, r5, r6
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OPC r7, r7, r8
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OPC r10, r10, ip
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teq r1, lr
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stm r0!, { r3, r5, r7, r10 }
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bne 2b
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9:
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RETC /* copy carry out */
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#ifndef ARM_ALWAYS_BX
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pop { r4, r5, r6, r7, r8, r10, pc }
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#else
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pop { r4, r5, r6, r7, r8, r10, lr }
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bx lr
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#endif
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END (FUNC)
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