[PATCH] Enable unrolling of multi-exit loops

[Andrew Trick]

> On Oct 10, 2014, at 10:49 AM, Mark Heffernan <meheff at google.com> wrote:
> 
> Commited r219517.
> 
> Andrew, btw, you can probably close "rdar:14038809 [SCEV]: Optimize trip count computation for multi-exit loops.".
> 
> Mark
> 
> http://reviews.llvm.org/D5550
> 
> 

Thanks Mark. Nice work!
-Andy