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
117 lines
2.4 KiB
ArmAsm
117 lines
2.4 KiB
ArmAsm
/* x86-64 __mpn_lshift --
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Copyright (C) 2007-2019 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not,
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see <https://www.gnu.org/licenses/>. */
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#include "sysdep.h"
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#include "asm-syntax.h"
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#define rp %rdi
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#define up %rsi
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#define n %rdx
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#define cnt %cl
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.text
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ENTRY (__mpn_lshift)
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lea -8(rp,n,8), rp
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lea -8(up,n,8), up
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mov %edx, %eax
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and $3, %eax
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jne L(nb00)
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L(b00): /* n = 4, 8, 12, ... */
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mov (up), %r10
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mov -8(up), %r11
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xor %eax, %eax
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shld %cl, %r10, %rax
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mov -16(up), %r8
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lea 24(rp), rp
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sub $4, n
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jmp L(00)
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L(nb00):/* n = 1, 5, 9, ... */
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cmp $2, %eax
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jae L(nb01)
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L(b01): mov (up), %r9
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xor %eax, %eax
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shld %cl, %r9, %rax
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sub $2, n
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jb L(le1)
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mov -8(up), %r10
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mov -16(up), %r11
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lea -8(up), up
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lea 16(rp), rp
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jmp L(01)
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L(le1): shl %cl, %r9
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mov %r9, (rp)
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ret
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L(nb01):/* n = 2, 6, 10, ... */
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jne L(b11)
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L(b10): mov (up), %r8
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mov -8(up), %r9
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xor %eax, %eax
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shld %cl, %r8, %rax
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sub $3, n
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jb L(le2)
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mov -16(up), %r10
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lea -16(up), up
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lea 8(rp), rp
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jmp L(10)
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L(le2): shld %cl, %r9, %r8
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mov %r8, (rp)
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shl %cl, %r9
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mov %r9, -8(rp)
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ret
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.p2align 4 /* performance critical! */
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L(b11): /* n = 3, 7, 11, ... */
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mov (up), %r11
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mov -8(up), %r8
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xor %eax, %eax
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shld %cl, %r11, %rax
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mov -16(up), %r9
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lea -24(up), up
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sub $4, n
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jb L(end)
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.p2align 4
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L(top): shld %cl, %r8, %r11
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mov (up), %r10
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mov %r11, (rp)
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L(10): shld %cl, %r9, %r8
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mov -8(up), %r11
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mov %r8, -8(rp)
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L(01): shld %cl, %r10, %r9
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mov -16(up), %r8
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mov %r9, -16(rp)
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L(00): shld %cl, %r11, %r10
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mov -24(up), %r9
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mov %r10, -24(rp)
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add $-32, up
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lea -32(rp), rp
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sub $4, n
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jnc L(top)
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L(end): shld %cl, %r8, %r11
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mov %r11, (rp)
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shld %cl, %r9, %r8
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mov %r8, -8(rp)
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shl %cl, %r9
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mov %r9, -16(rp)
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ret
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END (__mpn_lshift)
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