[Bug tree-optimization/103257] [9/10/11/12 Regression] Dead Code Elimination Regression at -O3 (trunk vs 11.2.0)

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103257

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-11-16
      Known to work|                            |5.1.0, 7.2.0
      Known to fail|                            |10.1.0, 8.1.0
   Target Milestone|12.0                        |9.5
            Summary|[12 Regression] Dead Code   |[9/10/11/12 Regression]
                   |Elimination Regression at   |Dead Code Elimination
                   |-O3 (trunk vs 11.2.0)       |Regression at -O3 (trunk vs
                   |                            |11.2.0)
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note this used to be optimized at the gimple level for GCC 7 and before. So
marking it as a regression from that point forward.