[Webkit-unassigned] [Bug 72878] Strength reduction for Mul and Mod operations for known constants in DFG

Wed Nov 23 08:32:30 PST 2011

https://bugs.webkit.org/show_bug.cgi?id=72878

Andy Wingo <wingo at igalia.com> changed:

           What    |Removed                     |Added
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                 CC|                            |wingo at igalia.com

--- Comment #13 from Andy Wingo <wingo at igalia.com>  2011-11-23 08:32:30 PST ---
(In reply to comment #8)
> >     format-xparb:      1.091x as fast     12.0ms +/- 0.0%    11.0ms +/- 0.0%     significant
> 
> Something to keep in mind: date-format-xparb fluctuates by 10% every time I breathe on the DFG, for any reason.  So I tend to ignore it.  That's not to say that this isn't a true progression.  But taking progressions on xparb seriously is bad luck: next time you make a patch you might find xparb regressing by 10%, for no reason at all! ;-)

Sounds like the integral milliseconds truncation of bug 71801.

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