| commit | d0cebfa650a084f041131207d81f9b311babd5ef | [log] [tgz] |
|---|---|---|
| author | Philippe Bergheaud <felix@linux.vnet.ibm.com> | Thu Sep 26 08:30:09 2013 +0200 |
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | Thu Oct 31 16:19:16 2013 +1100 |
| tree | 22892b6bde5b57087437b233e1020391189e71b7 | |
| parent | 9c662cad2fb66ff3a44b1d4f545bf496bf67ab10 [diff] |
powerpc: word-at-a-time optimization for 64-bit Little Endian This is an optimization for the PowerPC in 64-bit little-endian. Bit counting is used in find_zero(), instead of the multiply and shift. It is modelled after Alan Modra's PowerPC LE strlen patch http://sourceware.org/ml/libc-alpha/2013-08/msg00097.html. Signed-off-by: Philippe Bergheaud <felix@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>