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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 /sysdeps/s390/multiarch/Makefile
parentfd484e057dd4d2813182df08584a4c48d6f1dd7a (diff)
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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 'sysdeps/s390/multiarch/Makefile')
-rw-r--r--sysdeps/s390/multiarch/Makefile7
1 files changed, 7 insertions, 0 deletions
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
new file mode 100644
index 0000000000..3a9809847c
--- /dev/null
+++ b/sysdeps/s390/multiarch/Makefile
@@ -0,0 +1,7 @@
+ifeq ($(subdir),string)
+sysdep_routines += strlen strlen-vx strlen-c
+endif
+
+ifeq ($(subdir),wcsmbs)
+sysdep_routines += wcslen wcslen-vx wcslen-c
+endif