[Bug sanitizer/81281] [6/7/8 Regression] UBSAN: false positive, dropped promotion to long type.

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81281

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note the #c8 testcase started failing with r247578 - before that we weren't
doing that good job in evrp to optimize it.