[Bug middle-end/77580] Improve devirtualization

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77580

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-09-13
     Ever confirmed|0                           |1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
To some extend this is loop versioning.  There is another bug where we don't
need the versioning and GCC does not devirtualization the loop but I can't find
it right now; this bug should depend on that bug.

Anyways confirmed.