[Bug tree-optimization/127968] [16/17 Regression] wrong code at -O1, -O2 and -Os with partially overlapping memcpy in a loop

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127968

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |15.3.0
            Summary|wrong code at -O1, -O2 and  |[16/17 Regression] wrong
                   |-Os with partially          |code at -O1, -O2 and -Os
                   |overlapping memcpy in a     |with partially overlapping
                   |loop                        |memcpy in a loop
      Known to fail|                            |16.1.0
   Target Milestone|---                         |16.3