The frame encoding uses a fixed size hashtable.
By creating a special hashtable with a Box<[u32; 4096]> size,
in combination with the bit shift of 4, which is also moved into a constant,
the compiler can remove the bounds checks.
For that to happen, the compiler also needs to recognize the >> 48 right
shift from the hash algorithm (u64 >> 52 <= 4096), which is the case. Yey
The frame encoding uses a fixed size hashtable. By creating a special hashtable with a Box<[u32; 4096]> size, in combination with the bit shift of 4, which is also moved into a constant, the compiler can remove the bounds checks. For that to happen, the compiler also needs to recognize the
>> 48right shift from the hash algorithm (u64 >> 52 <= 4096), which is the case. Yey