[Bug tree-optimization/45178] CDDCE doesn't eliminate conditional code in infinite loop

rguenth at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Wed Aug 4 13:21:00 GMT 2010



------- Comment #2 from rguenth at gcc dot gnu dot org  2010-08-04 13:21 -------
(In reply to comment #1)
> Subject: Re:   New: CDDCE doesn't eliminate
>         conditional code in infinite loop
> 
> Hmm, so the problem is that we produce two alternating loops and both with
> unknown number of iterations?
> We might teach loop discovery to preffer single infinite loop over alternation
> I guess.

Yeah, that might help.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-08-04 13:21:34
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45178



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