[llvm] r216160 - [INDVARS] Extend using of widening of induction variables for the cases of "sub nsw" and "mul nsw" instructions.

[Joerg Sonnenberger]

On Thu, Aug 21, 2014 at 08:25:45AM -0000, Zinovy Nis wrote:
> Author: zinovy.nis
> Date: Thu Aug 21 03:25:45 2014
> New Revision: 216160
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=216160&view=rev
> Log:
> [INDVARS] Extend using of widening of induction variables for the cases of "sub nsw" and "mul nsw" instructions. 

This patch breaks TCL. I don't have a simple test case, but the result
looks like

http://ftp.netbsd.org/pub/pkgsrc/misc/joerg/20140913.2134/tcllib-1.15/install.log

Joerg