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Re: Your change breaks MIPS.


On Thu, Jan 03, 2002 at 02:47:14PM +0100, Jan Hubicka wrote:
> > On Sun, Dec 30, 2001 at 12:44:31AM +0100, Jan Hubicka wrote:
> > > >  > BTW, am I the only one seeing bootstrap failure on mips?
> > > >  > Thanks.
> > > >  > H.J.
> > > > 
> > > > No, I see it also on irix6.2.
> > > I got it now too.  I hoped the problem to be cc0 issue related to jump threading,
> > > but jump threading code appears to handle cc0 conservatively - in fact disable wast
> > > majority of threading - I need to fix that separately.
> > > 
> > > Does someone have simplified testcase or can reproduce similar breakage on other target?
> > > 
> > 
> > I am testing this patch on mips now. I don't know it will solve the
> > mips bootstrap problem. But Jan, I blieve you really meant
> > 
> >   cleanup_cfg ((optimize ? CLEANUP_EXPENSIVE : 0)
> > 	       | (flag_thread_jumps ? CLEANUP_THREADING : 0));
> Yes, I did. Thanks for catching that!
> if I read that properly, without the parenthesis and optimize set it should
> not do any threading, but it definitly does - I need to check.
...
> Uhm... I was catching this over an hour today... Silly me! and thanks
> a lot for investigation!
> 
> I will re-start my MIPS bootstrap now!

It didn't work for me on mips. I am looking into it now.



H.J.


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