--- Comment #10 from rguenther at suse dot de <rguenther at suse dot de> ---
On Mon, 9 Apr 2018, hubicka at gcc dot wrote:

> --- Comment #9 from Jan Hubicka <hubicka at gcc dot> ---
> The patch attached does the table cleaning that also removes "stale pointers".
> It is bit hard what "stale" means here. Devirtualization is speculative and
> works safely only if it sees whole program.  We see bit more of whole program
> before we remove stuff that is not reachable in current TU, but practically it
> is not a big ifference.
> I tested the table rebuild patch. If you want me to implement table walking I
> can do it too - only problem is that odr hash is local to ipa-devirt so I will
> add walker function in there with a callback.

The patch has some additional changes btw.  But yes, if you tested
the patch go ahead with it but please add the testcase Jakub
produced for the testsuite.

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