[llvm] r193137 - TBAA: fix PR17620.

[Manman]

On Oct 21, 2013, at 6:50 PM, Rafael Espíndola <rafael.espindola at gmail.com> wrote:

>> +; RUN: opt < %s -O2 -S | FileCheck %s
> 
> Do you really need all of -O2?

I tried a few combinations with -gvn, but it didn't expose the issue. What I can do is to dump the ir right before the gvn run that exposes the issue.

Manman

Manman
> 
> Cheers,
> Rafael