about summary refs log tree commit diff
path: root/sysdeps/arm/armv7/multiarch/memchr_neon.S
Commit message (Collapse)AuthorAgeFilesLines
* Update copyright dates with scripts/update-copyrightsPaul Eggert2024-01-011-1/+1
|
* Update copyright dates with scripts/update-copyrightsJoseph Myers2023-01-061-1/+1
|
* Update copyright dates with scripts/update-copyrightsPaul Eggert2022-01-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
* Update copyright dates with scripts/update-copyrightsPaul Eggert2021-01-021-1/+1
| | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-011-1/+1
|
* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^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
* Update copyright dates with scripts/update-copyrights.Joseph Myers2019-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* arm: Remove ununsed ARM code in optimized implementationAdhemerval Zanella2018-04-161-16/+0
| | | | | | | | | | | | | | | | | This patch removes the ununsed ARM code path for armv6t2 memchr and strlen and armv7 memch and strcmp. In all implementation, the ARM code is not used in any possible build (unless glibc is explicit build with the non-documented NO_THUMB compiler flag) and for armv7 the resulting code either produces wrong results (memchr) and throw build error (strcmp). Checked on arm-linux-gnueabihf built targeting both armv6 and armv7. * sysdeps/arm/armv6t2/memchr.S (memchr): Remove ARM code path. * sysdeps/arm/armv6t2/strlen.S (memchr): Likewise. * sysdeps/arm/armv7/multiarch/memchr_neon.S (memchr): Likewise. * sysdeps/arm/armv7/strcmp.S (strcmp): Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2018-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* arm: Implement memchr ifunc selection in CAdhemerval Zanella2017-11-061-6/+215
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch refactor ARM memchr ifunc selector to a C implementation. No functional change is expected, including ifunc resolution rules. It also reorganize the ifunc options code: 1. The memchr_impl.S is renamed to memchr_neon.S and multiple compilation options (which route to armv6t2/memchr one) is removed. The code to build if __ARM_NEON__ is defined is also simplified. 2. A memchr_noneon is added (which as build along previous ifunc resolution) and includes the armv6t2 direct. 3. Same as 2. for loader object. Alongside the aforementioned changes, it also some cleanus: - Internal memchr definition (__GI_memcpy) is now a hidden symbol. - No need to create hidden definition for the ifunc variants. Checked on armv7-linux-gnueabihf and with a build for arm-linux-gnueabi, arm-linux-gnueabihf with and without multiarch support and with both GCC 7.1 and GCC mainline. * sysdeps/arm/armv7/multiarch/Makefile [$(subdir) = string] (sysdeps_routines): Add memchr_noneon. * sysdeps/arm/armv7/multiarch/ifunc-memchr.h: New file. * sysdeps/arm/armv7/multiarch/memchr_noneon.S: Likewise. * sysdeps/arm/armv7/multiarch/rtld-memchr.S: Likewise. * sysdeps/arm/armv7/multiarch/memchr.S: Remove file. * sysdeps/arm/armv7/multiarch/memchr.c: New file. * sysdeps/arm/armv7/multiarch/memchr_impl.S: Move to ... * sysdeps/arm/armv7/multiarch/memchr_neon.S: ... here. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* [ARM] Optimise memchr for NEON-enabled processorsPrakhar Bahuguna2017-06-271-0/+9
This patch provides an optimised implementation of memchr using NEON instructions to improve its performance, especially with longer search regions. This gave an improvement in performance against the Thumb2+DSP optimised code, with more significant gains for larger inputs. The NEON code also wins in cases where the input is small (less than 8 bytes) by defaulting to a simple byte-by-byte search. This avoids the overhead imposed by filling two quadword registers from memory. * sysdeps/arm/armv7/multiarch/Makefile: Add memchr_neon to sysdep_routines. * sysdeps/arm/armv7/multiarch/ifunc-impl-list.c: Add define for __memchr_neon. Add ifunc definitions for __memchr_neon and __memchr_noneon. * sysdeps/arm/armv7/multiarch/memchr.S: New file. * sysdeps/arm/armv7/multiarch/memchr_impl.S: Likewise. * sysdeps/arm/armv7/multiarch/memchr_neon.S: Likewise. Testing done: Ran regression tests for arm-none-linux-gnueabihf as well as a full toolchain bootstrap. Benchmark tests were ran on ARMv7-A and ARMv8-A hardware targets.