[clang] [llvm] [HLSL] Implement dot2add intrinsic (PR #131237)

[Ashley Coleman via llvm-commits]

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@@ -2472,6 +2472,33 @@ bool SemaHLSL::CheckBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
       return true;
     break;
   }
+  case Builtin::BI__builtin_hlsl_dot2add: {
+    // Check number of arguments should be 3
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V-FEXrt wrote:

Nit: imo this comment doesn't really add any new information

Comments should generally be "why" not "what"


https://github.com/llvm/llvm-project/pull/131237