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| author | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2015-01-07 07:18:30 -0500 |
|---|---|---|
| committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2015-01-13 11:28:58 -0500 |
| commit | 8bedcb5f03c62bf6001396dafdd82fbd4da7c2db (patch) | |
| tree | 436c29346cd848224d7adee415d8e78cc4409915 /NEWS | |
| parent | f06a4faf8a2b4d046eb40e94b47948cc47d79902 (diff) | |
| download | glibc-8bedcb5f03c62bf6001396dafdd82fbd4da7c2db.tar glibc-8bedcb5f03c62bf6001396dafdd82fbd4da7c2db.tar.gz glibc-8bedcb5f03c62bf6001396dafdd82fbd4da7c2db.tar.bz2 glibc-8bedcb5f03c62bf6001396dafdd82fbd4da7c2db.zip | |
powerpc: Optimized strcmp for POWER8/PPC64
This patch adds an optimized POWER8 strcmp using unaligned accesses.
The algorithm first check the initial 16 bytes, then align the first
function source and uses unaligned loads on second argument only.
Aditional checks for page boundaries are done for unaligned cases
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -19,8 +19,9 @@ Version 2.21 17744, 17745, 17746, 17747, 17748, 17775, 17777, 17780, 17781, 17782, 17791, 17793, 17796, 17797, 17803, 17806, 17834 -* Optimized strcpy, stpcpy, strncpy, stpncpy implementations for +* Optimized strcpy, stpcpy, strncpy, stpncpy, and strcmp implementations for powerpc64/powerpc64le. + Implemented by Adhemerval Zanella (IBM). * Added support for TSX lock elision of pthread mutexes on powerpc32, powerpc64 and powerpc64le. This may improve lock scaling of existing programs on |