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

[Tobias Gysi]

================
@@ -133,15 +129,32 @@ DebugTranslation::translateImpl(DICompositeTypeAttr attr) {
     isDistinct = true;
   }
 
+  llvm::TempMDTuple placeholderElements =
+      llvm::MDNode::getTemporary(llvmCtx, std::nullopt);
   return getDistinctOrUnique<llvm::DICompositeType>(
       isDistinct, llvmCtx, attr.getTag(), getMDStringOrNull(attr.getName()),
       translate(attr.getFile()), attr.getLine(), translate(attr.getScope()),
       translate(attr.getBaseType()), attr.getSizeInBits(),
       attr.getAlignInBits(),
       /*OffsetInBits=*/0,
       /*Flags=*/static_cast<llvm::DINode::DIFlags>(attr.getFlags()),
-      llvm::MDNode::get(llvmCtx, elements),
-      /*RuntimeLang=*/0, /*VTableHolder=*/nullptr);
+      /*Elements=*/placeholderElements.get(), /*RuntimeLang=*/0,
+      /*VTableHolder=*/nullptr);
+}
+
+void DebugTranslation::translateImplFillPlaceholder(
+    DICompositeTypeAttr attr, llvm::DICompositeType *placeholder) {
+  SmallVector<llvm::Metadata *> elements;
+  for (auto member : attr.getElements())
----------------
gysit wrote:

```suggestion
  for (DINodeAttr member : attr.getElements())
```
nit: or whatever the type is...

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