[llvm] [DirectX][DXIL] Design document for TableGen Spec of DXIL Operations (PR #85170)

[S. Bharadwaj Yadavalli via llvm-commits]

bharadwajy wrote:

> Based on the latest comments and updates. It seems like we need some variation of option 1 or 3 with a way to represent an overload as not just parameters but also some validation.
> 
> @bharadwajy, can you do a cleanup pass on the document to reflect either the single planned direction or the narrower list of options we're still considering?

Updated the document. Implementation of the design described in the current version of this document is in PR #87803. 

https://github.com/llvm/llvm-project/pull/85170