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| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-12-27 17:48:37 -0200 |
|---|---|---|
| committer | Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> | 2016-12-28 11:44:31 -0200 |
| commit | 9314d3545e6641063b490918e2e8716556ba20db (patch) | |
| tree | cc3d6518db2c0a86db8dcbb22ee44e789a0a9920 /sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c | |
| parent | ffcf0f1cb77dd0d902495fd066a96784f76f2c3a (diff) | |
| download | glibc-9314d3545e6641063b490918e2e8716556ba20db.tar.gz glibc-9314d3545e6641063b490918e2e8716556ba20db.tar.xz glibc-9314d3545e6641063b490918e2e8716556ba20db.zip | |
powerpc64: strchr/strchrnul optimization for power8
The P7 code is used for <=32B strings and for > 32B vectorized loops are used. This shows as an average 25% improvement depending on the position of search character. The performance is same for shorter strings. Tested on ppc64 and ppc64le.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c index 2d085a206b..703a49b421 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c +++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c @@ -124,6 +124,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c. */ IFUNC_IMPL (i, name, strchr, IFUNC_IMPL_ADD (array, i, strchr, + hwcap2 & PPC_FEATURE2_ARCH_2_07, + __strchr_power8) + IFUNC_IMPL_ADD (array, i, strchr, hwcap & PPC_FEATURE_HAS_VSX, __strchr_power7) IFUNC_IMPL_ADD (array, i, strchr, 1, @@ -132,6 +135,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, /* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c. */ IFUNC_IMPL (i, name, strchrnul, IFUNC_IMPL_ADD (array, i, strchrnul, + hwcap2 & PPC_FEATURE2_ARCH_2_07, + __strchrnul_power8) + IFUNC_IMPL_ADD (array, i, strchrnul, hwcap & PPC_FEATURE_HAS_VSX, __strchrnul_power7) IFUNC_IMPL_ADD (array, i, strchrnul, 1, |