[Bug tree-optimization/78035] Inconsistency between address comparison and alias analysis

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78035

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2016-10-19
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 39835
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39835&action=edit
prototype patch for the address comparison inconsistency

Prototype patch.  Note it's too conservative (doesn't consider vtables
specially, etc., as said, I'd like to have a symtab helper for this).