This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [tree-ssa] Removal of gotos from cfg based ir


> On Fri, 2003-11-14 at 10:20, Jan Hubicka wrote:
> > > On Thu, 2003-11-13 at 19:37, Zdenek Dvorak wrote:
> > > > Hello,
> 
> > I do have the RTL expansion pass that use CFG (to preserve profile
> > mainly).  In longer run, I would like to enter RTL already in cfglayout
> > mode, so we avoid need to invent/kill the gotos on the way.
> > 
> 
> That means you will have to build a CFG in order to generate code...
> even with no optimization on, or you need expanders to can't deal with
> either version of the IL.

You have to build CFG in order to allocate registers even when not
optimizing at least.
Doing CFG cleanup on tree level at -O0 will likely to speed up too.

Honza
> 
> Andrew


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]