[llvm] r287553 - [CodeGenPrep] Skip merging empty case blocks

[Joerg Sonnenberger via llvm-commits]

On Thu, Nov 24, 2016 at 08:21:30PM +0100, Joerg Sonnenberger via llvm-commits wrote:
> On Mon, Nov 21, 2016 at 04:47:28PM -0000, Jun Bum Lim via llvm-commits wrote:
> > Author: junbuml
> > Date: Mon Nov 21 10:47:28 2016
> > New Revision: 287553
> > 
> > URL: http://llvm.org/viewvc/llvm-project?rev=287553&view=rev
> > Log:
> > [CodeGenPrep] Skip merging empty case blocks
> 
> This breaks loop info. Try compilating the following test case with -O2:

Reverted with 288052.