The recently merged [CUTLASS BYOC](https://github.com/apache/tvm/pull/9261)
relies on C-codegen based BYOC infra to JIT generate and compile C++ template
classes.
Currently it doesn't support Constants embedded in an external function and
instead requires all weight and bias parameters etc t
UPDATE: For the particular case I've been working with, replacing one
`is_constant()` in my pattern with `wildcard()` allowed me to avoid the need
for running constant folding before pattern matching. So for now, I'm unblocked.
But I still wonder if is realistic not to support Constant at all
