https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63270

--- Comment #3 from Martin Liška <mliska at suse dot cz> ---
The problem does not occur in mainline any more, starting with: r215328.
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Subject: [Bug ipa/63270] [5 Regression] internal compiler error: in odr_types_equivalent_p, at ipa-devirt.c:1075
Date: Thu, 18 Sep 2014 12:56:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63270

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #3)
> The problem does not occur in mainline any more, starting with: r215328.

Then maybe add the testcase and close both issues?
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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/62017] AddressSanitizer reports *-buffer-overflow in destructor when multiple virtual inheritance is used
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idb017

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2014-09-18
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 33510
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id3510&actioníit
gcc5-pr62017.patch

Untested fix.  It makes no sense to instrument clobbers, so that is what the
patch does.