[llvm] r285296 - [DAGCombiner] Add vector demanded elements support to computeKnownBits

[Chris Matthews via llvm-commits]

This would not make it into any of our compile time tracking, because it causes our jobs that build the compiler to timeout.

There are plans to fill that part of the website. Soon!


On October 27, 2016 at 4:32:24 PM, Davide Italiano (davide at freebsd.org) wrote:

On Thu, Oct 27, 2016 at 4:26 PM, Juergen Ributzka <juergen at ributzka.de> wrote:  
> The build slaves are not necessarily homogeneous, so you have to choose a  
> conservative value that fits all. I didn’t set the limit, but I recall it  
> was set high on purpose to avoid false positives. We don’t want to bug  
> developers with unnecessary email.  
>  
> I don’t think a lower limit would be a great utility to find compile time  
> regressions either and it isn’t the purpose of this bot. LNT has way better  
> support to identify and track compile time regressions.  
>  

Yes, makes sense. I don't think it's worth changing it.  
I sometimes check LNT (I just did), but I noticed this page is empty.  
http://llvm.org/perf/db_default/v4/compile/recent_activity  
Are there plans to fill it?  

Thanks!  

--  
Davide  
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