How to reverse patch reversal in cfgcleanup.c (Was: RFA: re-instate struct_equiv code)

[Bernd Schmidt]

Joern RENNECKE wrote:

> Because the new code as of December actually updated life information 
> incorrectly, the global updates that were done had also quite a lot of 
> work to do (and didn't really do it right, because of the presence of 
> fake edges).

Could you elaborate on the problem with fake edges?


Bernd