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| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2014-03-03 08:06:41 -0600 |
|---|---|---|
| committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2014-03-03 08:06:41 -0600 |
| commit | c7debbdfacbef150aaf9113eb05ccaf2b9e7af6c (patch) | |
| tree | baf78c9b58faa86b3996ae3745cb81fd50e2fb58 /sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c | |
| parent | 235eed8644eb2deebf839b13b418dbd47bb14c5a (diff) | |
| download | glibc-c7debbdfacbef150aaf9113eb05ccaf2b9e7af6c.tar glibc-c7debbdfacbef150aaf9113eb05ccaf2b9e7af6c.tar.gz glibc-c7debbdfacbef150aaf9113eb05ccaf2b9e7af6c.tar.bz2 glibc-c7debbdfacbef150aaf9113eb05ccaf2b9e7af6c.zip | |
PowerPC: strrchr optimization for POWER7/PPC64
This patch optimizes strrchr() for ppc64. It uses aligned memory
access along with cmpb instruction and CPU prefetch to avoid
cache misses for speed improvement.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c index 6bbdd4ebba..8789483780 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c +++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c @@ -238,5 +238,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL_ADD (array, i, wcscpy, 1, __wcscpy_ppc)) + /* Support sysdeps/powerpc/powerpc64/multiarch/strrchr.c. */ + IFUNC_IMPL (i, name, strrchr, + IFUNC_IMPL_ADD (array, i, strrchr, + hwcap & PPC_FEATURE_HAS_VSX, + __strrchr_power7) + IFUNC_IMPL_ADD (array, i, strrchr, 1, + __strrchr_ppc)) + return i; } |