[x264-devel] Re: Very small optimizations

[Måns Rullgård]

David Pio said:
> what I mean here is not about the shifting itslef but more of the
> shifting/divide per loop iteration
> at the end of the for loop it will do a i_me_range/2 or /4 to compare with
> the counter.
> if the compiler knows that i_me_range hasn't changed, it can optimize that
> conditional fragment by remembering the value of i_me_range/2 or /4...but
> does it actually do that?

Yes, the compiler does make this optimization.

-- 
Måns Rullgård
mru at mru.ath.cx

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