[PATCH 5/9] regrename: Don't run if function was separately shrink-wrapped

[Segher Boessenkool]

On Fri, Sep 09, 2016 at 12:31:31PM -0600, Jeff Law wrote:
> On 06/08/2016 03:18 AM, Bernd Schmidt wrote:
> >On 06/08/2016 03:47 AM, Segher Boessenkool wrote:
> >>+      /* regrename creates wrong code for exception handling, if used
> >>together
> >>+         with separate shrink-wrapping.  Disable for now, until we have
> >>+     figured out what exactly is going on.  */
> >
> >That needs to be figured out now or it'll be there forever.
> I suspect it's related to liveness computations getting out-of-wack with 
> separate shrink wrapping.  If that's the case, then the question in my 
> mind is how painful is this going to be to fix in the df scanning code.

I haven't been able to pin-point the failure.  It happens for just a few
huge testcases.  So I am hoping someone who understands regrename will
figure it out.


Segher