diff options
| author | Carlos Eduardo Seo <cseo@linux.vnet.ibm.com> | 2015-11-11 17:31:28 -0200 |
|---|---|---|
| committer | Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> | 2016-04-15 17:19:19 -0300 |
| commit | 1b045ee53e0b8bed75745b931b33f27d21c9ed22 (patch) | |
| tree | 43f5d8811c45e1b4fd33101f5f8ef76ca0404032 /sysdeps/powerpc/powerpc64/multiarch/strlen.c | |
| parent | 223f17cf7b796e49e222caf287889e4b2793d8a2 (diff) | |
| download | glibc-1b045ee53e0b8bed75745b931b33f27d21c9ed22.tar.gz | |
powerpc: Optimization for strlen for POWER8.
This implementation takes advantage of vectorization to improve performance of
the loop over the current strlen implementation for POWER7.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/multiarch/strlen.c')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strlen.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strlen.c b/sysdeps/powerpc/powerpc64/multiarch/strlen.c index 94501fdf2f..609a87ec9f 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/strlen.c +++ b/sysdeps/powerpc/powerpc64/multiarch/strlen.c @@ -29,11 +29,14 @@ extern __typeof (__redirect_strlen) __libc_strlen; extern __typeof (__redirect_strlen) __strlen_ppc attribute_hidden; extern __typeof (__redirect_strlen) __strlen_power7 attribute_hidden; +extern __typeof (__redirect_strlen) __strlen_power8 attribute_hidden; libc_ifunc (__libc_strlen, - (hwcap & PPC_FEATURE_HAS_VSX) - ? __strlen_power7 - : __strlen_ppc); + (hwcap2 & PPC_FEATURE2_ARCH_2_07) + ? __strlen_power8 : + (hwcap & PPC_FEATURE_HAS_VSX) + ? __strlen_power7 + : __strlen_ppc); #undef strlen strong_alias (__libc_strlen, strlen) |