[clang] Enable matrices in HLSL (PR #111415)

[Greg Roth via cfe-commits]

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@@ -1381,7 +1381,7 @@ void ASTContext::InitBuiltinTypes(const TargetInfo &Target,
   if (LangOpts.OpenACC && !LangOpts.OpenMP) {
     InitBuiltinType(ArraySectionTy, BuiltinType::ArraySection);
   }
-  if (LangOpts.MatrixTypes)
+  if (LangOpts.MatrixTypes || LangOpts.HLSL)
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pow2clk wrote:

I'll look into that. I didn't want to enable matrices by default because I didn't really want to allow the matrix attribute syntax in HLSL.

https://github.com/llvm/llvm-project/pull/111415