diff options
| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-12-13 10:53:42 +0530 |
|---|---|---|
| committer | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-12-13 10:53:42 +0530 |
| commit | d89060d60307c84995177a6fba2ed80c96f6b914 (patch) | |
| tree | f5d36eab18ecd6cced3967e2b896f48894edc50c /sysdeps/powerpc/powerpc64/multiarch/strncmp.c | |
| parent | 92dcaa3e2f7bf0f7f1c04cd2fb6a317df1a4e225 (diff) | |
powerpc: strncmp optimization for power9
Vectorized loops are used for strings > 32B when compared
to power8 optimization.
Tested on power9 ppc64le simulator.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/multiarch/strncmp.c')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strncmp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncmp.c b/sysdeps/powerpc/powerpc64/multiarch/strncmp.c index 63a1aa049a..6b307767a6 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/strncmp.c +++ b/sysdeps/powerpc/powerpc64/multiarch/strncmp.c @@ -29,11 +29,14 @@ extern __typeof (strncmp) __strncmp_ppc attribute_hidden; extern __typeof (strncmp) __strncmp_power4 attribute_hidden; extern __typeof (strncmp) __strncmp_power7 attribute_hidden; extern __typeof (strncmp) __strncmp_power8 attribute_hidden; +extern __typeof (strncmp) __strncmp_power9 attribute_hidden; # undef strncmp /* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle ifunc symbol properly. */ libc_ifunc_redirected (__redirect_strncmp, strncmp, + (hwcap2 & PPC_FEATURE2_ARCH_3_00) + ? __strncmp_power9 : (hwcap2 & PPC_FEATURE2_ARCH_2_07) ? __strncmp_power8 : (hwcap & PPC_FEATURE_HAS_VSX) |