It costs cycles to call a C function. I seem angry and bitter all the time. But ...

axod · on March 10, 2009

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.