[Bug sanitizer/93246] [9 regression] Unexpected program behavior when -fsanitize=address and -O2/O3 used

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93246

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2020-01-13
                 CC|                            |rguenth at gcc dot gnu.org
      Known to work|                            |10.0, 8.3.0
            Summary|Unexpected program behavior |[9 regression] Unexpected
                   |when -fsanitize=address and |program behavior when
                   |-O2/O3 used                 |-fsanitize=address and
                   |                            |-O2/O3 used
     Ever confirmed|0                           |1
      Known to fail|                            |9.2.0

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started on trunk with g:dc3221e1e3d3a39d and it's fixed since
g:c2851dc2896bfc0d. Both these revisions are about aliasing.