[llvm] r305739 - [BDCE] Add comments. NFC

[Davide Italiano via llvm-commits]

On Mon, Jun 19, 2017 at 1:16 PM, Xin Tong <trent.xin.tong at gmail.com> wrote:
> bit level DCE
>

This one seems more a change in DemandedBits to me.

Thanks,

--
Davide