[llvm-branch-commits] [clang] [llvm] [HLSL][RootSignature] Retain `SourceLocation` of `RootElement` for `SemaHLSL` diagnostics (PR #147094)

[Finn Plummer via llvm-branch-commits]

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@@ -1103,9 +1107,15 @@ bool SemaHLSL::handleRootSignatureDecl(HLSLRootSignatureDecl *D,
   using ResourceRange = llvm::hlsl::rootsig::ResourceRange;
   using GroupT = std::pair<ResourceClass, /*Space*/ uint32_t>;
 
+  // Introduce a mapping from the collected RangeInfos back to the
+  // RootSignatureElement that will retain its diagnostics info
+  llvm::DenseMap<size_t, const hlsl::RootSignatureElement *> InfoIndexMap;
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inbelic wrote:

```suggestion
  llvm::SmallDenseMap<size_t, const hlsl::RootSignatureElement *> InfoIndexMap;
```

https://github.com/llvm/llvm-project/pull/147094