[Lldb-commits] [PATCH] D147606: [lldb] fix #61942, discard "empty" ranges in DWARF to better handle gcc binary

LU Hongyi via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Wed Apr 5 18:35:07 PDT 2023


jwnhy added a comment.

In D147606#4245804 <https://reviews.llvm.org/D147606#4245804>, @DavidSpickett wrote:

> I'm not familiar with this code, but the issue as explained I think I understand.
>
> It seems like you're checking for empty ranges in two places, what does each one do?
>
> Is there anything else these ranges indicate or do we think it is simply a missed optimisation in the debug info producer? If they do sometimes mean something, then perhaps improving the searching of the ranges is preferable to discarding the empty ones.
> (though if all tests pass with this patch then these empty ranges can't be that important to us can they)

Thanks for the comments, I didn't improve the search because that searching logic seems being used everywhere and not just restricted to filter through these "address ranges", I am a bit afraid of changing that also changes something subtle.
though it seems not making much sense to returning a "empty range" as searching results.


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https://reviews.llvm.org/D147606



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