[PATCH] D43956: [DebugInfo] Discard invalid DBG_VALUE instructions in LiveDebugVariables

Adrian Prantl via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Mar 2 09:55:08 PST 2018

aprantl added a comment.

Congratulations, you found a bug! :-)
I think the right way forward would be to fix LiveDebugVariables to not drop undef DBG_VALUEs. This will be slightly more expensive in terms of compile time and size of the debug info (since we now need to use location lists for cases like the one you found), but it will be far more accurate. Let me know if you would be interested in working on that otherwise we can also just file a PR as a plan of record.



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