https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108657
--- Comment #7 from David Binderman <dcb314 at hotmail dot com> --- I can only go back as far as 20221028, when the git tree was installed. $ /home/dcb36/gcc/results.20221028/bin/gcc -w -O3 -ftrivial-auto-var-init=zero bug880.c $ ./a.out checksum = BCC02729 $ /home/dcb36/gcc/results.20221028/bin/gcc -v 2>&1 | fgrep exp gcc version 13.0.0 20221028 (experimental) (89999f2358724fa4) $ I will have a look at how to get at dates before the clone date.