[Bug middle-end/121593] Miscompiles small function to produce endless(?) loop

[marc.mutz at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121593

--- Comment #7 from Marc Mutz <marc.mutz at hotmail dot com> ---
> Also `15.1.1 (20250611)` is before the fix for PR 120358 which might be the 
> fix here too.

Same issue with 15.2.1 (20250819).