[llvm-branch-commits] [clang] [llvm] [HLSL][RootSignature] Add parsing of flags to RootParam (PR #140152)

[Finn Plummer via llvm-branch-commits]

================
@@ -91,6 +99,23 @@ struct RootParam {
   Register Reg;
   uint32_t Space = 0;
   ShaderVisibility Visibility = ShaderVisibility::All;
+  RootDescriptorFlags Flags;
+
+  void setDefaultFlags() {
+    assert(Type != ParamType::Sampler &&
+           "Sampler is not a valid type of ParamType");
+    switch (Type) {
+    case ParamType::CBuffer:
+    case ParamType::SRV:
+      Flags = RootDescriptorFlags::DataStaticWhileSetAtExecute;
+      break;
+    case ParamType::UAV:
+      Flags = RootDescriptorFlags::DataVolatile;
+      break;
+    case ParamType::Sampler:
+      break;
+    }
+  }
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inbelic wrote:

That is correct. Current implementation assume the most permissive version (2)

https://github.com/llvm/llvm-project/pull/140152
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