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| author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2015-08-26 10:26:22 +0200 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2015-08-26 10:26:22 +0200 |
| commit | 63724a6db60f98e91da474d11d83a19aa10fc54e (patch) | |
| tree | 50fc60c0309d220ced0d3ed9d32d6b853c11080d /sysdeps/s390/bits | |
| parent | e1fe91180e4e29549f35f8ecd705b0bb4f208606 (diff) | |
| download | glibc-63724a6db60f98e91da474d11d83a19aa10fc54e.tar.gz | |
S390: Optimize strcmp and wcscmp.
This patch provides optimized versions of strcmp and wcscmp with the z13
vector instructions.
The architecture specific string.h had a typo, which leads to ommiting the
inline version in this file if __USE_STRING_INLINES is defined.
Tested this inline version by tweaking test-strcmp.c.
ChangeLog:
* sysdeps/s390/multiarch/strcmp-vx.S: New File.
* sysdeps/s390/multiarch/strcmp.c: Likewise.
* sysdeps/s390/multiarch/wcscmp-c.c: Likewise.
* sysdeps/s390/multiarch/wcscmp-vx.S: Likewise.
* sysdeps/s390/multiarch/wcscmp.c: Likewise.
* sysdeps/s390/s390-32/multiarch/strcmp.c: Likewise.
* sysdeps/s390/s390-64/multiarch/strcmp.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcmp and
wcscmp functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strcmp, wcscmp.
* string/strcmp.c (STRCMP): Define and use macro.
* benchtests/bench-wcscmp.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcscmp.
* sysdeps/s390/bits/string.h: Fix typo: _HAVE_STRING_ARCH_strcmp
instead of _HAVE_STRING_ARCH_memchr.
Diffstat (limited to 'sysdeps/s390/bits')
| -rw-r--r-- | sysdeps/s390/bits/string.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sysdeps/s390/bits/string.h b/sysdeps/s390/bits/string.h index e69dc3a639..b48d51100a 100644 --- a/sysdeps/s390/bits/string.h +++ b/sysdeps/s390/bits/string.h @@ -226,8 +226,8 @@ memchr (const void *__str, int __c, size_t __n) } #endif -/* Search N bytes of S for C. */ -#define _HAVE_STRING_ARCH_memchr 1 +/* Compare S1 and S2. */ +#define _HAVE_STRING_ARCH_strcmp 1 #ifndef _FORCE_INLINES __STRING_INLINE int strcmp (const char *__s1, const char *__s2) |