https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116948
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- The way bootstrap-ubsan is usually used is that people try it a couple of times a year at most, and usually there are various issues, some old still not fixed, some new. I like the tool idea, we'd just need to give it the log filename and ask people to log the build, plus of course grep the testsuite *.log files for issues as well. Note, in the testsuite case usually the tests FAIL because there is extra diagnostics, though the tool won't be much more complex than simple grep.
