[Bug sanitizer/63802] UBSan doesn't catch misaligned access if address is 16-bytes (or more) aligned

[y.gribov at samsung dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63802

--- Comment #3 from Yury Gribov <y.gribov at samsung dot com> ---
Agreed, I'll cook a patch for tomorrow then.