aboutsummaryrefslogtreecommitdiff
path: root/ChangeLog
diff options
context:
space:
mode:
authorStefan Liebler <stli@linux.vnet.ibm.com>2015-08-26 10:26:20 +0200
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2015-08-26 10:26:20 +0200
commit9472f35a0a6dbbda82ce103aaf0f5013f5d46e34 (patch)
treef987642b36af4e740bbd7e80e218f526af5a230d /ChangeLog
parentfd484e057dd4d2813182df08584a4c48d6f1dd7a (diff)
downloadglibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.zip
glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.tar.gz
glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.tar.bz2
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--ChangeLog17
1 files changed, 17 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 9304378..2d69da1 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.