[Bug tree-optimization/115267] [14./15 Regression] Undue warning about undefined behavior in loop with varying limits

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115267

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |diagnostic
                 CC|                            |rguenth at gcc dot gnu.org
      Known to work|                            |13.3.0
            Summary|Undue warning about         |[14./15 Regression] Undue
                   |undefined behavior in loop  |warning about undefined
                   |with varying limits         |behavior in loop with
                   |                            |varying limits
      Known to fail|                            |14.1.0, 15.0
           Priority|P3                          |P2
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Target Milestone|---                         |14.2
   Last reconfirmed|                            |2024-05-29

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  We're confusing ourselves with splitting the loop, I haven't digged
how we confuse ourselves yet.  -fno-split-loops avoids the diagnostic.