[clang] [llvm] [HLSL][DXIL] InterlockedOr and InterlockedOr64 builtins (PR #180804)

[Alexander Johnston via cfe-commits]

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@@ -4004,6 +4020,170 @@ bool SemaHLSL::CheckBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
                                getASTContext().UnsignedIntTy);
     break;
   }
+  case Builtin::BI__builtin_hlsl_interlocked_or: {
+    if (SemaRef.checkArgCountRange(TheCall, 3, 4))
+      return true;
+    auto checkResTy = [this](const HLSLAttributedResourceType *ResTy) -> bool {
+      bool IsValid = false;
+      const ASTContext &AST = SemaRef.getASTContext();
+      // The resource handle must be either
+      // RWByteAddressBuffer or RWStructuredBuffer
+      IsValid |= ResTy->getAttrs().ResourceClass == ResourceClass::UAV &&
+                 ResTy->isRaw() && ResTy->hasContainedType();
+      // RWBuffer<int> or RWBuffer<uint>
+      IsValid |= ResTy->getAttrs().ResourceClass == ResourceClass::UAV &&
+                 !ResTy->isRaw() && ResTy->hasContainedType() &&
+                 (ResTy->getContainedType() == AST.IntTy ||
+                  ResTy->getContainedType() == AST.UnsignedIntTy);
+      // RWTexture<int> or RWTexture<uint> (any dimension)
+      IsValid |= ResTy->getAttrs().ResourceClass == ResourceClass::UAV &&
+                 !ResTy->isRaw() &&
+                 ResTy->getAttrs().ResourceDimension !=
+                     llvm::dxil::ResourceDimension::Unknown &&
+                 (ResTy->getContainedType() == AST.IntTy ||
+                  ResTy->getContainedType() == AST.UnsignedIntTy);
+      return !IsValid;
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Alexander-Johnston wrote:

Condensed down into a series of helpers. Adds an isTexture helper to the HLSLAttributedResourceType, similar to isRaw and isStructured

https://github.com/llvm/llvm-project/pull/180804