[Bug c++/122779] "[[assume(x)]];" vs "if (!x) __builtin_unreachable();"

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122779

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is a dup of the other assume issue.