Construct the array operation expression, call object.arrayOp!(tiargs)(args).
Encode operand types and operations into tiargs using reverse polish notation (RPN) to preserve precedence. Unary operations are prefixed with "u" (e.g. "u~"). Pass operand values (slices or scalars) as args.
Scalar expression sub-trees of
e are evaluated before calling
into druntime to hoist them out of the loop. This is a valid
evaluation order as the actual array operations have no