http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59258
--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> --- (In reply to Tobias Burnus from comment #4) > Except for staring at the -fsanitize=null code, I don't have any good idea > how to debug this - valgrind and an -fsanitized=address instrumented GCC > don't help. Seems like we're passing bogus location. Can you e-mail me the unreduced testcase? I'll look into it.