K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2010-10-19T22:11:50.775134Z
K 7
svn:log
V 464
MFC r213326: libc: Remove the i386 assembler version of strlen(3).

On anything modern, the C version, which processes a word at a time, is much
faster. The Intel optimization manual explicitly warns against using REP
prefixes with SCAS or CMPS, which is exactly what the assembler version
does.

A simple test on a Phenom II showed the C version, compiled with -O2, to be
about twice as fast determining the length of 100000 strings between 0 and
255 bytes long.

END