tree 4e87794da0f1db654cd68a00cd68e12c72cf4e21
parent 2e6433b8293ac64923c737078e87dc39fc4bced6
author Finn Plummer <canadienfinn@gmail.com> 1747346040 -0700
committer GitHub <noreply@github.com> 1747346040 -0700
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[HLSL][RootSignature] Add metadata generation for descriptor tables (#139633)

- prereq: Modify `RootSignatureAttr` to hold a reference to the owned
declaration
- Define and implement `MetadataBuilder` in `HLSLRootSignature`
- Integrate and invoke the builder in `CGHLSLRuntime.cpp` to generate
the Root Signature for any associated entry functions
- Add tests to demonstrate functionality in `RootSignature.hlsl`

Resolves https://github.com/llvm/llvm-project/issues/126584

Note: this is essentially just
https://github.com/llvm/llvm-project/pull/125131 rebased onto the new
approach of constructing a root signature decl, instead of holding the
elements in `AdditionalMembers`.