So you're comparing inlined rep scasb, with non-inlined alternative. Interesting... | Hacker News

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		axod on March 10, 2009 \| parent \| context \| favorite \| on: Glibc's strlen implementation: Probably not what y... So you're comparing inlined rep scasb, with non-inlined alternative. Interesting comparison I guess. Sure, it would bloat the code a little to inline the optimized version, but it could be done in tight inner loops if required.

tptacek on March 10, 2009 [–]

I'm assuming you're not inlining a function with a loop in it, but OK, you can also just expand the 7 insns everywhere you call strlen.

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