aprantl added inline comments.

================
Comment at: clang/lib/CodeGen/CGDebugInfo.cpp:2369
+              ? CGM.getObjCRuntime().ComputeBitfieldBitOffset(CGM, ID, Field)
+              : 0;
     } else {
----------------
aprantl wrote:
> It might help to attempt some git blame archeology.
> Judging from the comment, it sounds like the debugger is supposed to query 
> the runtime for the *byte* offset and then add the bit offset from DWARF? 
> Could that make sense?
If that is the case, we'd need to relax llvm-dwarfdump --verify to accept this 
and make sure LLDB does the right thing instead.


Repository:
  rC Clang

https://reviews.llvm.org/D51990



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