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| author | Vidya Ranganathan <vidya@linux.vnet.ibm.com> | 2014-06-06 07:56:07 -0500 |
|---|---|---|
| committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2014-06-11 08:39:31 -0500 |
| commit | e23d3d2690bf63207b1a47e83a94693daebbbfe5 (patch) | |
| tree | b86d2c14cb30a5a48d0729700cea3012ebcb87f6 /ChangeLog | |
| parent | 42b1161e8c45df468d1696b43a7820c3ffe29da1 (diff) | |
| download | glibc-e23d3d2690bf63207b1a47e83a94693daebbbfe5.tar.gz glibc-e23d3d2690bf63207b1a47e83a94693daebbbfe5.tar.xz glibc-e23d3d2690bf63207b1a47e83a94693daebbbfe5.zip | |
PowerPC: Optimized strcmp for PPC64/POWER7
Optimization is achieved on 8 byte aligned strings with double word comparison using cmpb instruction. On unaligned strings loop unrolling is applied for Power7 gain.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 85e631e1f1..4be5547f76 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,15 @@ +2014-06-11 Vidya Ranganathan <vidya@linux.vnet.ibm.com> + + * sysdeps/powerpc/powerpc64/power7/strcmp.S: New file: Optimization. + * sysdeps/powerpc/powerpc64/multiarch/strcmp.c: New file: + multiarch strcmp for PPC64. + * sysdeps/powerpc/powerpc64/multiarch/strcmp-ppc64.S: New file. + * sysdeps/powerpc/powerpc64/multiarch/strcmp-power7.S: New file. + * sysdeps/powerpc/powerpc64/multiarch/Makefile: Add strcmp + multiarch optimizations. + * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: + (__libc_ifunc_impl_list): Likewise. + 2014-06-11 Siddhesh Poyarekar <siddhesh@redhat.com> * benchtests/scripts/validate_benchout.py: New script. |