[Bug other/53316] Introduce -Odebug

["rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53316

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2012-05-11
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |
            Summary|Change -O1 to be easily     |Introduce -Odebug
                   |debugged and on by default  |
     Ever Confirmed|0                           |1

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-05-11 08:38:41 UTC ---
(In reply to comment #4)
> > As it stands, does anyone even use -O1? It seems like it would be a major
> > improvement to make it useful.
> 
> Of course people do use -O1 and making such an incompatible change to it is out
> of question I think.  That's largely orthogonal to introducing -Odebug (and
> making it the default) in my opinion.

Of course people should realize that -O1 is by no means "maintained" as in
tuned in any way to do something reasonable.  At the moment it wastes much
time for no good reason, just selectively turning off some optimizations.
Re-tuning -O1 definitely makes sense - maybe not to the point we'd want to
go with -Odebug.

I'm taking this bug as a request to add -Odebug, something I was working on,
so - mine.