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| author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2015-08-26 10:26:20 +0200 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2015-08-26 10:26:20 +0200 |
| commit | 9472f35a0a6dbbda82ce103aaf0f5013f5d46e34 (patch) | |
| tree | f987642b36af4e740bbd7e80e218f526af5a230d /ChangeLog | |
| parent | fd484e057dd4d2813182df08584a4c48d6f1dd7a (diff) | |
| download | glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.tar.gz glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.tar.xz glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.zip | |
S390: Optimize strlen and wcslen.
This patch provides optimized versions of strlen and wcslen with the z13 vector instructions. The helper macro IFUNC_VX_IMPL is introduced and is used to register all __<func>_c() and __<func>_vx() functions within __libc_ifunc_impl_list() to the ifunc test framework. ChangeLog: * sysdeps/s390/multiarch/Makefile: New File. * sysdeps/s390/multiarch/strlen-c.c: Likewise. * sysdeps/s390/multiarch/strlen-vx.S: Likewise. * sysdeps/s390/multiarch/strlen.c: Likewise. * sysdeps/s390/multiarch/wcslen-c.c: Likewise. * sysdeps/s390/multiarch/wcslen-vx.S: Likewise. * sysdeps/s390/multiarch/wcslen.c: Likewise. * string/strlen.c (STRLEN): Define and use macro. * sysdeps/s390/multiarch/ifunc-impl-list.c (IFUNC_VX_IMPL): New macro function. (__libc_ifunc_impl_list): Add ifunc test for strlen, wcslen. * benchtests/Makefile (wcsmbs-bench): New variable. (string-bench-all): Added wcsmbs-bench. * benchtests/bench-wcslen.c: New File.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 9304378573..2d69da17c2 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,22 @@ 2015-08-26 Stefan Liebler <stli@linux.vnet.ibm.com> + * sysdeps/s390/multiarch/Makefile: New File. + * sysdeps/s390/multiarch/strlen-c.c: Likewise. + * sysdeps/s390/multiarch/strlen-vx.S: Likewise. + * sysdeps/s390/multiarch/strlen.c: Likewise. + * sysdeps/s390/multiarch/wcslen-c.c: Likewise. + * sysdeps/s390/multiarch/wcslen-vx.S: Likewise. + * sysdeps/s390/multiarch/wcslen.c: Likewise. + * string/strlen.c (STRLEN): Define and use macro. + * sysdeps/s390/multiarch/ifunc-impl-list.c + (IFUNC_VX_IMPL): New macro function. + (__libc_ifunc_impl_list): Add ifunc test for strlen, wcslen. + * benchtests/Makefile (wcsmbs-bench): New variable. + (string-bench-all): Added wcsmbs-bench. + * benchtests/bench-wcslen.c: New File. + +2015-08-26 Stefan Liebler <stli@linux.vnet.ibm.com> + * sysdeps/s390/multiarch/ifunc-resolve.h (s390_vx_libc_ifunc, s390_vx_libc_ifunc2): New macro function. |