[Bug sanitizer/106558] ASan failed to detect a global-buffer-overflow

[tetra2005 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106558

--- Comment #8 from Yuri Gribov <tetra2005 at gmail dot com> ---
(In reply to Jakub Jelinek from comment #7)

I've started work on this but I'll probly only have enough time to cook a patch
on weekend.

> Perhaps either a quick check that for base ptrs that live in memory

A silly question, such cases (base_addrs living in memory) can be identified by
  gimple *g = SSA_NAME_DEF_STMT (t);
in maybe_get_single_definition having vuses?