[Mlir-commits] [mlir] [MLIR][LLVM] Support Recursive DITypes (PR #80251)

[Tobias Gysi]

================
@@ -82,12 +89,27 @@ class DebugImporter {
   /// null attribute otherwise.
   StringAttr getStringAttrOrNull(llvm::MDString *stringNode);
 
+  DistinctAttr getOrCreateDistinctID(llvm::DINode *node);
+
   /// A mapping between LLVM debug metadata and the corresponding attribute.
   DenseMap<llvm::DINode *, DINodeAttr> nodeToAttr;
-
-  /// A stack that stores the metadata nodes that are being traversed. The stack
-  /// is used to detect cyclic dependencies during the metadata translation.
-  SetVector<llvm::DINode *> translationStack;
+  /// A mapping between LLVM debug metadata and the distinct ID attr for DI
+  /// nodes that require distinction.
----------------
gysit wrote:

```suggestion
  /// A mapping between distinct LLVM debug metadata nodes and the corresponding distinct id attribute.
```
Or just "the corresponding id".

https://github.com/llvm/llvm-project/pull/80251