[Bug tree-optimization/84595] __builtin_trap() causes optimizer to remove code

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84595

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
What you want is __builtin_breakpoint (if that existed).  Trap is considered as
noreturn just like abort/exit.