Fix for df problems, and and an ifcvt improvement

[Paolo Bonzini]

On 04/26/2010 01:54 PM, Dominique Dhumieres wrote:
> Revision 158639 most likely caused PR43858. Does it make sense
> to commit new patches without fixing the PR?

While some care is good, this particular patch is actually a fix rather 
than a "mixed fix and optimization" like r158639 was.  So I leave it to 
Bernd.

(BTW, your @codesourcery.com mail doesn't work).

Paolo