This adds a new document about DXIL Resource Handling. I've attempted to
describe here how we intend to use TargetExtTypes to represent resources
in LLVM IR and the various intrinsics we'll need to lower these through
LLVM to DXIL.
For now this document is limited to the high level concepts and a few
details on buffer types, and there are a number of TODOs in the document
that we'll iterate on as we progress in the implementation.
Add a mechanism to specify constraints to the design document. These facilitate
specification of DXIL Op attributes that are predicated by Shader Model version.
This just seeks to give a high level overview of the current state of
the DirectX backend. It doesn't go in too deep, but should be a starting
point for further documentation.
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Co-authored-by: S. Bharadwaj Yadavalli <Bharadwaj.Yadavalli@microsoft.com>
This documents some of the architectural direction for DXIL and tries
to provide a bit of a map for where to implement different aspects of
DXIL support.
Pull Request: https://github.com/llvm/llvm-project/pull/78221
