[patch] Fix recent breakage in basic-block.h

[Andreas Jaeger]

Diego Novillo <dnovillo@redhat.com> writes:

> On Mon, 17 Sep 2001, Jan Hubicka wrote:
>
>> Perhaps we can wait with the splitup of structure after merning AST branch.
>> Do you have any idea when do you will start the mergning?
>>
> Not really.  The code is still quite volatile, I first want to
> get to a point where we can do a couple of simple transformations
> (like DCE) before proposing a merge.  That would give us some
> confidence that the basic data-flow and control-flow
> infrastructure is working.
>
> Later this week I will be committing code to compute reaching
> definitions and reached uses.  This will make it trivial to
> implement basic DCE.

DCE=Dead-Code Elimination?  Does it really make sense so early in the
process?  AFAIU the tree optimizations are done before the RTL ones
and DCE should be one of the later optimizations.  What kind of
benefits do you expect?

Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj