[Bug c++/91397] -Wstringop-overflow specified bound 18446744073709551615 exceeds maximum object size 9223372036854775807

[steinar+gcc at gunderson dot no]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91397

--- Comment #1 from Steinar H. Gunderson <steinar+gcc at gunderson dot no> ---
Created attachment 46689
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46689&action=edit
Unreduced test case