Method datastack_pop

crates/vm/src/vm/mod.rs:672–674

(&self, base: *mut u8)

    /// and all allocations made after it must already have been popped.
    #[inline(always)]
    pub(crate) unsafe fn datastack_pop(&self, base: *mut u8) {
        unsafe { (*self.datastack.get()).pop(base) }
    }

    /// Temporarily detach the current thread (ATTACHED → DETACHED) while
    /// running `f`, then re-attach afterwards.  Allows `stop_the_world` to