[Bug sanitizer/80386] UBSAN: false positive - constant folding and reassosiation before instrumentation

[babokin at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80386

--- Comment #8 from Dmitry Babokin <babokin at gmail dot com> ---
Many failing tests are fixed, but quite few still failing. Should I add failing
test cases here or create a separate bug?