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

[mpolacek at gcc dot gnu.org]

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

--- Comment #9 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Please open a new PR.  I'll look at what you've found.  Thanks.