[Lldb-commits] [lldb] Improve performance of .debug_names lookups when DW_IDX_parent attributes are used (PR #91808)

[Greg Clayton via lldb-commits]

clayborg wrote:

> What's an actual test case for this issue? The example given above doesn't look like it'd produce entries for the declaration of ios_base? Like here's something that looks equivalent, but is complete, and doesn't have a DW_IDX_parent on the nested typedef entry in the index: https://godbolt.org/z/efjbze3x1
> 
> it'd be good to have a reproducer for this to motivate the discussion...

I will see what I can do to repro with a minimal test case. But I do believe that this PR should go in as right now we have binaries with thousands of entries that are being found from the top down from a name entry and causes tons of bogus type resolving lookups to happen.

https://github.com/llvm/llvm-project/pull/91808