[clang] [HLSL] Add HLSLAttributedResourceType (PR #106181)

[Helena Kotas via cfe-commits]

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@@ -6155,6 +6155,63 @@ class BTFTagAttributedType : public Type, public llvm::FoldingSetNode {
   }
 };
 
+class HLSLAttributedResourceType : public Type, public llvm::FoldingSetNode {
+public:
+  struct Attributes {
+    // This is where data gathered from HLSL resource attributes are stored,
+    // such as resource class, is_rov, dimension, is_array, is_feedback
+    // or is_multisample. The values will be accessed individually via fields
+    // on the embedded struct. The Data alias is used for the AST type
+    //  serialization.
+    union {
+      struct {
+        uint8_t ResourceClass; // maps to llvm::dxil::ResourceClass
+        uint8_t IsROV : 1;
+        // FIXME: add additional resource properties here
+      };
+      unsigned Data;
+    };
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hekota wrote:

Thanks for letting me know, I was not aware of this!

https://github.com/llvm/llvm-project/pull/106181