[PATCH] D74030: [DebugInfo] Avoid generating duplicate llvm.dbg.value

[Alok Kumar Sharma via Phabricator via llvm-commits]

alok updated this revision to Diff 246144.
alok edited the summary of this revision.
alok added a comment.

This is updated to re-base and addressing common concern about performance and suggestion form @vsk  to use RemoveRedundantDbgInstrs.

Now,

1. Avoid insertion of duplicate dbg.value if immediate next instruction is identical dbg.value. (avoids generating duplicates for same load/store, forward scan is not done)
2. Delete duplicate dbg.value in case duplicate dbg.value are present (may be inserted for different load/store) by calling RemoveRedundantDbgInstrs.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D74030/new/

https://reviews.llvm.org/D74030

Files:
  llvm/lib/Transforms/Utils/Local.cpp
  llvm/test/DebugInfo/duplicate_dbgvalue.ll
  llvm/test/Transforms/Util/dbg-call-bitcast.ll

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