[clang] [llvm] [DirectX] Validate registers are bound to root signature (PR #146785)

[Finn Plummer via llvm-commits]

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@@ -271,15 +237,29 @@ static void reportErrors(Module &M, DXILResourceMap &DRM,
 
   if (auto RSD = getRootSignature(RSBI, MMI)) {
 
-    llvm::hlsl::rootsig::RootSignatureBindingValidation Validation =
-        initRSBindingValidation(*RSD, tripleToVisibility(MMI.ShaderProfile));
-
-    reportUnboundRegisters(M, Validation, ResourceClass::CBuffer,
-                           DRM.cbuffers());
-    reportUnboundRegisters(M, Validation, ResourceClass::UAV, DRM.uavs());
-    reportUnboundRegisters(M, Validation, ResourceClass::Sampler,
-                           DRM.samplers());
-    reportUnboundRegisters(M, Validation, ResourceClass::SRV, DRM.srvs());
+    hlsl::BindingInfoBuilder Builder;
+    dxbc::ShaderVisibility Visibility = tripleToVisibility(MMI.ShaderProfile);
+    trackRootSigDescBinding(Builder, *RSD, Visibility);
+
+    bool HasOverlap;
+    hlsl::BindingInfo Info = Builder.calculateBindingInfo(HasOverlap);
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inbelic wrote:

We don't seem to use `HasOverlap` after this. Is that expected? Should we be returning an error if it is true?

https://github.com/llvm/llvm-project/pull/146785