[llvm-branch-commits] [clang] [clang][OpenMP] Add AST node for root of compound directive (PR #118878)

[Johannes Doerfert via llvm-branch-commits]

================
@@ -9406,6 +9406,14 @@ StmtResult 
TreeTransform<Derived>::TransformOMPInformationalDirective(
       D->getBeginLoc(), D->getEndLoc());
 }
 
+template <typename Derived>
+StmtResult TreeTransform<Derived>::TransformOMPCompoundRootDirective(
+    OMPCompoundRootDirective *D) {
+  // This function should never be found in a template. Directive splitting
+  // only happens in non-template functions.
+  llvm_unreachable("TransformOMPCompoundRootDirective in a template");
----------------
jdoerfert wrote:

I'm not sure llvm_unreachable is the right kind of error here. Maybe it is. Is 
there precedent? 

https://github.com/llvm/llvm-project/pull/118878
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