[Bug sanitizer/66908] Uninitialized variable when compiled with UBsan

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66908

--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Not really.  We probably shouldn't instrument arguments of __ubsan_*
builtins...