develooper Front page | perl.perl5.porters | Postings from November 2000

Re: pp_add -> pp_i_add efficiency hack?

Thread Previous | Thread Next
From:
Jarkko Hietaniemi
Date:
November 9, 2000 09:50
Subject:
Re: pp_add -> pp_i_add efficiency hack?
Message ID:
20001109114658.A26718@chaos.wustl.edu
> Was this what you benchmarked, or did you do bit shuffling?

I did something similar for all the four (IVIV, IVUV, UVIV, UVUV)
cases, by checking against the arguments and {IV_{MIN,MAX,UV_MAX}
(I did both add and substract, and a half-hearted attempt with multiply).

> (or what is wrong with my thinking?)

Haven't looked at it in detail yet.

-- 
$jhi++; # http://www.iki.fi/jhi/
        # There is this special biologist word we use for 'stable'.
        # It is 'dead'. -- Jack Cohen
Thread Previous | Thread Next

nntp.perl.org: Perl Programming lists via nntp and http.
Comments to Ask Bjørn Hansen at ask@perl.org | Group listing | About