[llvm] [DXIL][Doc] Update specification of to use TableGen list instead of dag (PR #99055)

[S. Bharadwaj Yadavalli via llvm-commits]

bharadwajy wrote:


> 2. Should we define an enum of our own set of types rather than using `CodeGen/ValueTypes.td`? Types like `dx.handle` and `dx.ResRet.f32` and the like are going to be annoying to represent using MVTs, and there's actually a pretty limited set of legal types in DXIL operations.

I agree. In its current state, the spec considers types `<size>Ty` to be synonymous to LLVMType `llvm<size>_ty`. I'd like to propose that defining DXIL-specific types instead be done in a follow-on PRs - both as updates to design spec and corresponding implementation.


https://github.com/llvm/llvm-project/pull/99055