mirror of
git://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
182 lines
5.3 KiB
ArmAsm
182 lines
5.3 KiB
ArmAsm
/* Vector optimized 32/64 bit S/390 version of wcscat.
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Copyright (C) 2015-2019 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 <ifunc-wcscat.h>
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#if HAVE_WCSCAT_Z13
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# include "sysdep.h"
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# include "asm-syntax.h"
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.text
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/* wchar_t * wcscat (wchar_t *dest, const wchar_t *src)
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Concatenate two strings.
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Register usage:
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-r0=saved dest pointer for return
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-r1=tmp
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-r2=dest
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-r3=src
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-r4=tmp
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-r5=current_len
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-v16=part of src
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-v17=index of zero
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-v18=part of src
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*/
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ENTRY(WCSCAT_Z13)
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.machine "z13"
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.machinemode "zarch_nohighgprs"
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vlbb %v16,0(%r2),6 /* Load s until next 4k-byte boundary. */
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lcbb %r1,0(%r2),6 /* Get bytes to 4k-byte boundary or 16. */
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/* __wcslen_c can handle non 4byte aligned pointers,
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but __wcscpy_c not. Thus if either src or dest is
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not 4byte aligned, use __wcscat_c. */
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tmll %r2,3 /* Test if s is 4-byte aligned? */
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jne .Lfallback /* And use common-code variant if not. */
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tmll %r3,3 /* Test if src is 4-byte aligned? */
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jne .Lfallback /* And use common-code variant if not. */
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lgr %r0,%r2 /* Save destination pointer for return. */
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/* WCSLEN
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r1 = loaded bytes (tmp)
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r4 = zero byte index (tmp)
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r2 = dst
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*/
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vfenezf %v16,%v16,%v16 /* Find element not equal with zero search. */
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vlgvb %r5,%v16,7 /* Load zero index or 16 if not found. */
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clrjl %r5,%r1,.Llen_end /* Found zero within loaded bytes, end. */
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/* Align s to 16 byte. */
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risbgn %r1,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
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lghi %r5,16 /* current_len = 16. */
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slr %r5,%r1 /* Compute bytes to 16bytes boundary. */
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/* Find zero in 16byte aligned loop. */
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.Llen_loop:
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vl %v16,0(%r5,%r2) /* Load s. */
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vfenezfs %v16,%v16,%v16 /* Find element not equal with zero search. */
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je .Llen_found /* Jump away if zero was found. */
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vl %v16,16(%r5,%r2)
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vfenezfs %v16,%v16,%v16
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je .Llen_found16
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vl %v16,32(%r5,%r2)
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vfenezfs %v16,%v16,%v16
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je .Llen_found32
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vl %v16,48(%r5,%r2)
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vfenezfs %v16,%v16,%v16
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je .Llen_found48
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aghi %r5,64
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j .Llen_loop /* No zero -> loop. */
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.Llen_found48:
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aghi %r5,16
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.Llen_found32:
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aghi %r5,16
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.Llen_found16:
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aghi %r5,16
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.Llen_found:
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vlgvb %r4,%v16,7 /* Load byte index of zero. */
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algr %r5,%r4
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.Llen_end:
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/* WCSCPY
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%r1 = loaded bytes (tmp)
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%r4 = zero byte index (tmp)
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%r3 = curr src pointer
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%r2 = curr dst pointer
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*/
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la %r2,0(%r5,%r2) /* strcpy at end of dst-string. */
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vlbb %v16,0(%r3),6 /* Load s until next 4k-byte boundary. */
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lcbb %r1,0(%r3),6 /* Get bytes to 4k-byte boundary or 16. */
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vfenezf %v17,%v16,%v16 /* Find element not equal with zero search. */
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vlgvb %r5,%v17,7 /* Load zero index or 16 if not found. */
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clrjl %r5,%r1,.Lcpy_found_align /* If found zero within loaded bytes,
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copy bytes before and return. */
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/* Align s to 16 byte. */
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risbgn %r4,%r3,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
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lghi %r5,15 /* current_len = 15. */
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slr %r5,%r4 /* Compute highest index to 16byte boundary. */
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vstl %v16,%r5,0(%r2) /* Copy loaded characters - no zero. */
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ahi %r5,1 /* Start loop at next character. */
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/* Find zero in 16byte aligned loop. */
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.Lcpy_loop:
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vl %v16,0(%r5,%r3) /* Load s. */
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vfenezfs %v17,%v16,%v16 /* Find element not equal with zero search. */
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je .Lcpy_found_v16_0 /* Jump away if zero was found. */
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vl %v18,16(%r5,%r3) /* Load next part of s. */
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vst %v16,0(%r5,%r2) /* Save previous part without zero to dst. */
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vfenezfs %v17,%v18,%v18
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je .Lcpy_found_v18_16
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vl %v16,32(%r5,%r3)
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vst %v18,16(%r5,%r2)
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vfenezfs %v17,%v16,%v16
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je .Lcpy_found_v16_32
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vl %v18,48(%r5,%r3)
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vst %v16,32(%r5,%r2)
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vfenezfs %v17,%v18,%v18
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je .Lcpy_found_v18_48
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vst %v18,48(%r5,%r2)
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aghi %r5,64
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j .Lcpy_loop /* No zero -> loop. */
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.Lcpy_found_v16_32:
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aghi %r5,32
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.Lcpy_found_v16_0:
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la %r4,0(%r5,%r2)
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vlgvb %r1,%v17,7 /* Load byte index of zero. */
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aghi %r1,3 /* Also copy remaining bytes of zero. */
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vstl %v16,%r1,0(%r4) /* Copy characters including zero. */
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lgr %r2,%r0 /* Load saved dest-ptr. */
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br %r14
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.Lcpy_found_v18_48:
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aghi %r5,32
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.Lcpy_found_v18_16:
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la %r4,16(%r5,%r2)
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vlgvb %r1,%v17,7 /* Load byte index of zero. */
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aghi %r1,3 /* Also copy remaining bytes of zero. */
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vstl %v18,%r1,0(%r4) /* Copy characters including zero. */
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lgr %r2,%r0 /* Load saved dest-ptr. */
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br %r14
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.Lcpy_found_align:
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aghi %r5,3 /* Also copy remaining bytes of found zero. */
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vstl %v16,%r5,0(%r2) /* Copy characters including zero. */
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lgr %r2,%r0 /* Load saved dest-ptr. */
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br %r14
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.Lfallback:
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jg WCSCAT_C
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END(WCSCAT_Z13)
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# if ! HAVE_WCSCAT_IFUNC
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strong_alias (WCSCAT_Z13, __wcscat)
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weak_alias (__wcscat, wcscat)
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# endif
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#endif
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