NoDuplicate, ///< Call cannot be duplicated
NoImplicitFloat, ///< Disable implicit floating point insts
NoInline, ///< inline=never
+ NoRecurse, ///< The function does not recurse
NonLazyBind, ///< Function is called early and/or
///< often, so lazy binding isn't worthwhile
NonNull, ///< Pointer is known to be not null