http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47002
--- Comment #2 from Sebastian Pop <spop at gcc dot gnu.org> 2010-12-20 05:23:29 UTC --- I cannot reproduce the error on amd64-linux with "./cc1 -O3 bug.i" Please report the exact flags and the architecture. However I can see several unrelated memory leaks (i.e., not the one reported) with valgrind --leak-check=full ./cc1 -O3 bug.i