[Bug tree-optimization/18133] computed gotos are not folded back to regular gotos when it is found that they are not computed gotos at all

law at redhat dot com gcc-bugzilla@gcc.gnu.org
Mon Jan 24 21:37:00 GMT 2005


------- Additional Comments From law at redhat dot com  2005-01-24 21:37 -------
Subject: Re:  computed gotos are not folded
	back to regular gotos when it is found that they are not computed gotos at
	all

On Mon, 2005-01-24 at 20:59 +0000, stevenb at suse dot de wrote:
> ------- Additional Comments From stevenb at suse dot de  2005-01-24 20:59 -------
> Subject: Re:  computed gotos are not folded back to regular gotos when it is found that they are not computed gotos at all
> 
> > Some people do not want to see DOM getting bigger and bigger,
> 
> That includes me, but ...
> 
> > I don't think extending the jump
> > threader is all that difficult or dirty, either.
> 
> ...which is a very strong argument for just making DOM handle this.
> 
> My understanding is thatin the end DOM will mostly be just a threader,
> and threading through computed jumps is part of that.  That the existing
> threader can already handle this is bonus.
Out of curiosity, does this case actually happen very often?  Maybe
in Fortran code perhaps?

jeff



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18133



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