[Bug tree-optimization/19038] [4.0 Regression] out-of ssa causing loops to have more than one BB

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-30 17:27 -------
(In reply to comment #31)
> Subject: Re:  [4.0 Regression] out-of ssa
>         causing loops to have more than one BB

> Now if you think that PR is a trivial case that should be caught, then,
> show me why and I'll take a closer look.

The reason why it is not caught is because we don't cleanup the cfg while doing the loop optimizations, 
this has been fixed already on the tcb.

Oh, by the way I see that sixtrack has regressed on x86 now with your patch applied, I think this is 
because we still have the same problem as before as ivopts puts the new instruction in an empty BB
which becomes from not cleaning up the cfg.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19038