From 9472f35a0a6dbbda82ce103aaf0f5013f5d46e34 Mon Sep 17 00:00:00 2001 From: Stefan Liebler Date: Wed, 26 Aug 2015 10:26:20 +0200 Subject: 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 ___c() and ___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. --- string/strlen.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'string/strlen.c') diff --git a/string/strlen.c b/string/strlen.c index d066bde577..b7fd645429 100644 --- a/string/strlen.c +++ b/string/strlen.c @@ -23,10 +23,14 @@ #undef strlen +#ifndef STRLEN +# define STRLEN strlen +#endif + /* Return the length of the null-terminated string STR. Scan for the null terminator quickly by testing four bytes at a time. */ size_t -strlen (const char *str) +STRLEN (const char *str) { const char *char_ptr; const unsigned long int *longword_ptr; -- cgit 1.4.1