On Tuesday, September 27, 2016 at 9:18:42 PM UTC-4, Jeffrey Walton wrote:
>
> Hi Everyone,
>
> We added the CRYPTOPP_LIKELY and CRYPTOPP_UNLIKEY macros to help with code 
> generation and branch prediction. Drepper's got a good paper at 
> http://www.akkadia.org/drepper/cpumemory.pdf. It explains the problem and 
> some of the things we can do to help it.
>

This was a failed experiment so it was never merged into master. The macros 
made the code run slower, not faster.

Jeff

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