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| author | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2014-03-20 15:28:07 -0500 |
|---|---|---|
| committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2014-03-20 19:46:13 -0500 |
| commit | 6f23d0939e9651d8ac3c77a835fb6464b35a1dc4 (patch) | |
| tree | 973400ed55f2eb85767f120cc41c33337abef187 /sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c | |
| parent | 8c92dfff412c20dc0c483ea68444d093a5672de0 (diff) | |
| download | glibc-6f23d0939e9651d8ac3c77a835fb6464b35a1dc4.tar.gz | |
PowerPC: optimized strpbrk for POWER7
This patch add an optimized strpbrk for POWER7 by using a different
algorithm than default implementation: it constructs a table based on
the 'accept' argument and use this table to check for any occurance on
the input string. The idea is similar as x86_64 uses.
For PowerPC some tunings were added, such as unroll loops and memory
clear using VSX instructions.
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 328b87e5a9..91fabb0f12 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c +++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c @@ -270,5 +270,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL_ADD (array, i, strcspn, 1, __strcspn_ppc)) + /* Support sysdeps/powerpc/powerpc64/multiarch/strpbrk.c. */ + IFUNC_IMPL (i, name, strpbrk, + IFUNC_IMPL_ADD (array, i, strpbrk, + hwcap & PPC_FEATURE_HAS_VSX, + __strpbrk_power7) + IFUNC_IMPL_ADD (array, i, strpbrk, 1, + __strpbrk_ppc)) + return i; } |