[clang] [HLSL] Vector Usual Arithmetic Conversions (PR #108659)

[Damyan Pepper via cfe-commits]

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@@ -12881,6 +12886,12 @@ QualType Sema::CheckVectorLogicalOperands(ExprResult &LHS, ExprResult &RHS,
   if (!getLangOpts().CPlusPlus &&
       !(isa<ExtVectorType>(vType->getAs<VectorType>())))
     return InvalidLogicalVectorOperands(Loc, LHS, RHS);
+  if (getLangOpts().HLSL &&
+      getLangOpts().getHLSLVersion() >= LangOptionsBase::HLSL_2021) {
+    (void)InvalidOperands(Loc, LHS, RHS);
+    HLSL().emitLogicalOperatorFixIt(LHS.get(), RHS.get(), Opc);
+    return QualType();
+  }
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damyanp wrote:

As a naive reader, a comment explaining why HLSL is special here would be appreciated.

https://github.com/llvm/llvm-project/pull/108659