[PATCH][LoopVectorizer] Restrict the unroll factor of reductions in loops

[Gerolf Hoflehner]

Please see below.

On Aug 11, 2014, at 9:17 AM, James Molloy <james at jamesmolloy.co.uk> wrote:

> Hi Arnold, Gerolf, Hal,
> 
> Good idea about a tuning option. Attached is a patch that implements that tuning option. Is it OK to commit?
> 
> Gerolf, did you want me to add "|| isCyclone()" to AArch64TargetTransformInfo?
Yes, go for it. This sounds like a reasonable change. I do some more testing to see if there is any hiccup we need to deal with.
> 
> Cheers,
> 
> James
>