S390: Optimize memchr, rawmemchr and wmemchr.
authorStefan Liebler <stli@linux.vnet.ibm.com>
Wed, 26 Aug 2015 08:26:24 +0000 (10:26 +0200)
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>
Wed, 26 Aug 2015 08:26:24 +0000 (10:26 +0200)
commit88eefd344b3cf4a41284a1dfdaca61667e3a1b4b
treee6df6d058a7fe251cadaed11918374df46ca7bb9
parentb4c21601b147efc3c2b0e679e4ffc554b3987f0b
S390: Optimize memchr, rawmemchr and wmemchr.

This patch provides optimized versions of memchr, rawmemchr and wmemchr with the
z13 vector instructions.

ChangeLog:

* sysdeps/s390/multiarch/memchr-vx.S: New File.
* sysdeps/s390/multiarch/memchr.c: Likewise.
* sysdeps/s390/multiarch/rawmemchr-c.c: Likewise.
* sysdeps/s390/multiarch/rawmemchr-vx.S: Likewise.
* sysdeps/s390/multiarch/rawmemchr.c: Likewise.
* sysdeps/s390/multiarch/wmemchr-c.c: Likewise.
* sysdeps/s390/multiarch/wmemchr-vx.S: Likewise.
* sysdeps/s390/multiarch/wmemchr.c: Likewise.
* sysdeps/s390/s390-32/multiarch/memchr.c: Likewise.
* sysdeps/s390/s390-64/multiarch/memchr.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add memchr, wmemchr
and rawmemchr functions.
* sysdeps/s390/multiarch/ifunc-impl-list-common.c
(__libc_ifunc_impl_list_common): Add ifunc test for memchr, rawmemchr
and wmemchr.
* wcsmbs/wmemchr.c: Use WMEMCHR if defined.
* string/test-memchr.c: Add wmemchr support.
* wcsmbs/test-wmemchr.c: New File.
* wcsmbs/Makefile (strop-tests): Add wmemchr.
* benchtests/bench-memchr.c: Add wmemchr support.
* benchtests/bench-wmemchr.c: New File.
* benchtests/Makefile (wcsmbs-bench): wmemchr.
20 files changed:
ChangeLog
benchtests/Makefile
benchtests/bench-memchr.c
benchtests/bench-wmemchr.c [new file with mode: 0644]
string/test-memchr.c
sysdeps/s390/multiarch/Makefile
sysdeps/s390/multiarch/ifunc-impl-list.c
sysdeps/s390/multiarch/memchr-vx.S [new file with mode: 0644]
sysdeps/s390/multiarch/memchr.c [new file with mode: 0644]
sysdeps/s390/multiarch/rawmemchr-c.c [new file with mode: 0644]
sysdeps/s390/multiarch/rawmemchr-vx.S [new file with mode: 0644]
sysdeps/s390/multiarch/rawmemchr.c [new file with mode: 0644]
sysdeps/s390/multiarch/wmemchr-c.c [new file with mode: 0644]
sysdeps/s390/multiarch/wmemchr-vx.S [new file with mode: 0644]
sysdeps/s390/multiarch/wmemchr.c [new file with mode: 0644]
sysdeps/s390/s390-32/multiarch/memchr.c [new file with mode: 0644]
sysdeps/s390/s390-64/multiarch/memchr.c [new file with mode: 0644]
wcsmbs/Makefile
wcsmbs/test-wmemchr.c [new file with mode: 0644]
wcsmbs/wmemchr.c