[PATCH] D48596: [SymbolFile] Implement GetCompleteObjCClass for .debug_names

[Greg Clayton via Phabricator via llvm-commits]

clayborg requested changes to this revision.
clayborg added a comment.
This revision now requires changes to proceed.

The function is looking for the complete objective C type. The code needs to be modified to return the complete type only if one is found, else just one of the other incomplete versions is needed, not many.



================
Comment at: source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp:166
+    if (!cu || !cu->Supports_DW_AT_APPLE_objc_complete_type()) {
+      offsets.push_back(ref);
+      continue;
----------------
Why are we pushing a potentially incomplete ObjC type here? We should keep a list of incomplete types and if we don't find a complete one, then return that as a fallback.


================
Comment at: source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp:173
+    if (!die) {
+      offsets.push_back(ref);
+      continue;
----------------
Why are pushing a DIERef that doesn't produce a DIE? Remove the push_back.


================
Comment at: source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp:178
+    if (die.GetAttributeValueAsUnsigned(DW_AT_APPLE_objc_complete_type, 1))
+      offsets.push_back(ref);
+  }
----------------
If we find this, return right away with only one result: the complete version.


================
Comment at: source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp:180
+  }
+}
+
----------------
We need to add code here to return an incomplete version of the ObjC type from line 166 if no complete versions are found.


Repository:
  rL LLVM

https://reviews.llvm.org/D48596