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| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2017-10-02 17:31:13 +0530 |
|---|---|---|
| committer | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2017-10-02 17:31:13 +0530 |
| commit | 59ba2d2b542142e575d185f07e1eb96800d9862c (patch) | |
| tree | f2137c2e24bf432a39491ac0aeacd08d8f4970f2 /ChangeLog | |
| parent | 397286ea93ad30c24a5dad7928d0056c7b7d603d (diff) | |
| download | glibc-59ba2d2b542142e575d185f07e1eb96800d9862c.tar glibc-59ba2d2b542142e575d185f07e1eb96800d9862c.tar.gz glibc-59ba2d2b542142e575d185f07e1eb96800d9862c.tar.bz2 glibc-59ba2d2b542142e575d185f07e1eb96800d9862c.zip | |
powerpc: Optimize memrchr for power8
Vectorized loops are used for sizes greater than 32B to improve
performance over power7 optimization. This shows as an average
of 25% improvement depending on the position of search
character. The performance is same for shorter strings.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -1,3 +1,15 @@ +2017-10-02 Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> + + * sysdeps/powerpc/powerpc64/multiarch/Makefile + (sysdep_routines): Add memrchr_power8. + * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c + (memrchr): Add __memrchr_power8 to list of memrchr functions. + * sysdeps/powerpc/powerpc64/multiarch/memrchr-power8.S: + New file. + * sysdeps/powerpc/powerpc64/multiarch/memrchr.c + (memrchr): Add __memrchr_power8 to ifunc list. + * sysdeps/powerpc/powerpc64/power8/memrchr.S: New file. + 2017-10-01 H.J. Lu <hongjiu.lu@intel.com> [BZ #18822] |