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Subject: Re: question about importance of branchless code for speed

Author: Daniel Clausen

Date: 09:29:20 04/09/03

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On April 09, 2003 at 12:12:22, Robert Hyatt wrote:

>if (wtm == 1)
>  score+=bonus1
>else
>  score+=bonus2;
>
>You could turn that into:
>
>score+=wtm*bonus1 + (wtm^1)*bonus2;
>
>the new code does more work, but has no branch to mispredict.

And it's soo incredibly readable. :p I know this is not the discussion here, but
I wanted to point the out nevertheless. :)

Sargon

• Re: question about importance of branchless code for speed Robert Hyatt 14:59:18 04/09/03
  • Re: question about importance of branchless code for speed Daniel Clausen 15:21:27 04/09/03
    • Re: question about importance of branchless code for speed José Carlos 01:32:19 04/10/03
      • Re: question about importance of branchless code for speed Robert Hyatt 08:32:29 04/10/03
        • Re: question about importance of branchless code for speed José Carlos 09:57:28 04/10/03
          • Re: question about importance of branchless code for speed Robert Hyatt 11:26:24 04/10/03
    • Re: question about importance of branchless code for speed Robert Hyatt 20:02:55 04/09/03

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