[llvm-commits] [llvm] r53085 - /llvm/trunk/lib/Transforms/Scalar/LoopUnswitch.cpp

[Chris Lattner]

On Jul 3, 2008, at 12:50 AM, Matthijs Kooijman wrote:

> Hi Chris,
>
>> The advantage of this approach is that recalculation of domtree only
>> happens if an unswitch happens.  If you have:
> On the other hand, it will then also happen if there are no other  
> passes
> (directly) after loopunswitch that need dominfo...j

You're right of course, which we can verify by looking at the pass  
ordering llvm-gcc happens to use.  The right fix is to make unswitch  
update dominfo correctly.

-Chris