[Bug tree-optimization/127966] [15/16/17 Regression] wrong code at -O1 and above with a loop over string literal bytes >= 0x80

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127966

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|wrong code at -O1 and above |[15/16/17 Regression] wrong
                   |with a loop over string     |code at -O1 and above with
                   |literal bytes >= 0x80       |a loop over string literal
                   |                            |bytes >= 0x80
      Known to fail|                            |15.1.0
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2026-10-17
     Ever confirmed|0                           |1
   Target Milestone|---                         |15.4
      Known to work|                            |14.1.0

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Loop 1 iterates 0 times.
Loop 1 iterates at most 0 times.
Loop 1 likely iterates at most 0 times.