https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104928
--- Comment #2 from Nate Eldredge <nate at thatsmathematics dot com> --- This bug is still present. Tested and reproduced with g++ 13.1.0 (Ubuntu package), and by inspection of the source code, it's still in the trunk as well. Encountered on StackOverflow: https://stackoverflow.com/questions/77626624/race-condition-in-morriss-algorithm
