[PATCH] D14063: [SLP] Try a bit harder to find reduction PHIs

[Nadav Rotem via llvm-commits]

I am okay with this change, but I have a few comments on the patch:

1. Please try to write a smaller testcase. 
2. Please document the new helper function (doxygen style is fine)
3. Please document the body of the new helper function. 

Thanks,
Nadav


> On Oct 26, 2015, at 6:35 AM, Charlie Turner <charlie.turner at arm.com> wrote:
> 
> <D14063.38399.patch>