[Patch]change the cost for small trees in SLP vectorizer

[Yi Jiang]

Thank you. I will change it. 
On Sep 23, 2013, at 9:58 PM, Nadav Rotem <nrotem at apple.com> wrote:

> INFINITY is a floating point value, but the cost variable is int.  Please use INT_MAX. 
> 
> On Sep 23, 2013, at 5:05 PM, Yi Jiang <yjiang at apple.com> wrote:
> 
>> <patch>
>