Method write_cache_u16

crates/compiler-core/src/bytecode.rs:706–710

Write a u16 value into a CACHE code unit at `index`. Each CodeUnit is 2 bytes (#[repr(C)]: op u8 + arg u8), so one u16 fits exactly. Uses Relaxed atomic store; ordering is provided by replace_op (Release). # Safety - `index` must be in bounds and point to a CACHE entry.

(&self, index: usize, value: u16)

    /// # Safety
    /// - `index` must be in bounds and point to a CACHE entry.
    pub unsafe fn write_cache_u16(&self, index: usize, value: u16) {
        let units = unsafe { &*self.units.get() };
        let ptr = units.as_ptr().wrapping_add(index) as *const AtomicU16;
        unsafe { &*ptr }.store(value, Ordering::Relaxed);
    }

    /// Read a u16 value from a CACHE code unit at `index`.
    /// Uses Relaxed atomic load; ordering is provided by read_op (Acquire).