https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113396
--- Comment #4 from David Binderman <dcb314 at hotmail dot com> --- foundBugs $ ../results.20220116/bin/gcc -w -O2 bug998.c foundBugs $ ./a.out checksum = 77A231E6 foundBugs $ ../results.20220116/bin/gcc -w -O3 bug998.c foundBugs $ ./a.out checksum = 77A231E6 foundBugs $ ../results.20230205/bin/gcc -w -O2 bug998.c foundBugs $ ./a.out checksum = 77A231E6 foundBugs $ ../results.20230205/bin/gcc -w -O3 bug998.c foundBugs $ ./a.out checksum = 130B5204 foundBugs $ So it goes wrong sometime between g:90045c5df5b3c8853e7740fb72a11aead1c489bb and g:d042f118798ae0648b45f97e63b0e5ab7c82c8ef, a distance of 7403 commits.