* **Both LHS and RHS Fixed-width Priority**
- Exactly the same as for when RHS is an Integer, given that the
integer fixed width is, in fact, an integer.
+ - the return result is always a fixed-width priority SimdShape
* **Either LHS or RHS Elwidth Priority**
- It is unsafe (not possible) to respect the fixed width therefore
it is always ignored
the elwidths)
- all operators work because they match elwidth-for-elwidth
in their computations.
-
+ - the return result is always an elwidth-priority SimdShape