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| author | raji <raji@oc4354787705.ibm.com> | 2016-06-14 14:51:16 +0530 |
|---|---|---|
| committer | raji <raji@oc4354787705.ibm.com> | 2016-06-14 14:51:16 +0530 |
| commit | c8376f3e07602aaef9cb843bb73cb5f2b860634a (patch) | |
| tree | 9ba0710f8398c1299412ddefbf9a01c23c6a43ea /ChangeLog | |
| parent | a2ae1696f7c6cf269b3a734bce4d9d3620745854 (diff) | |
| download | glibc-c8376f3e07602aaef9cb843bb73cb5f2b860634a.tar glibc-c8376f3e07602aaef9cb843bb73cb5f2b860634a.tar.gz glibc-c8376f3e07602aaef9cb843bb73cb5f2b860634a.tar.bz2 glibc-c8376f3e07602aaef9cb843bb73cb5f2b860634a.zip | |
powerpc: strcasecmp/strncasecmp optmization for power8
This implementation utilizes vectors to improve performance
compared to current byte by byte implementation for POWER7.
The performance improvement is upto 4x. This patch is tested
on powerpc64 and powerpc64le.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 22 |
1 files changed, 22 insertions, 0 deletions
@@ -1,3 +1,25 @@ +2016-06-14 Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> + + * sysdeps/powerpc/powerpc64/multiarch/Makefile: + (sysdep_routines): Add P8 and PPC64 strcasecmp/strncasecmp targets. + * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: + (__libc_ifunc_impl_list): Add entries for P8 and PPC64 + ifunc'ed strcasecmp/strncasecmp. + * sysdeps/powerpc/powerpc64/multiarch/strcasecmp-power7.S: + [EALIGN]: Removed. + [END]: Likewise. + [__strcasecmp]: Define instead of the above to control symbol name. + * sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c: Add IFUNC selector + for __strcasecmp_power8. + * sysdeps/powerpc/powerpc64/multiarch/strncase.c: Add IFUNC selector + for __strncasecmp_power8. + * sysdeps/powerpc/powerpc64/multiarch/strcasecmp-power8.S: New File. + * sysdeps/powerpc/powerpc64/multiarch/strcasecmp-ppc64.c: Likewise. + * sysdeps/powerpc/powerpc64/multiarch/strncase-power8.S: Likewise. + * sysdeps/powerpc/powerpc64/multiarch/strncase-ppc64.c: Likewise. + * sysdeps/powerpc/powerpc64/power8/strcasecmp.S: Likewise. + * sysdeps/powerpc/powerpc64/power8/strncase.S: Likewise. + 2016-06-13 Joseph Myers <joseph@codesourcery.com> [BZ #20252] |