[llvm] r191017 - GVN proceeds in the presence of dead code.

[Joerg Sonnenberger]

On Thu, Sep 19, 2013 at 05:22:51PM -0000, Shuxin Yang wrote:
> URL: http://llvm.org/viewvc/llvm-project?rev=191017&view=rev
> Log:
> GVN proceeds in the presence of dead code.

I've reverted this for the moment as it results in crashes. I'll provide
a test case soonish.

Joerg