https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90651
--- Comment #1 from Iain Buclaw <ibuclaw at gdcproject dot org> --- Confirmed that segfault happens in upstream as well. By the way, it would be interesting to see if any more problems can be found just by prefixing all these generated tests with 'module object;' as the first line - this makes it so there are no implicit runtime dependencies being imported into the compilation.