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

[Vedant Kumar via Phabricator via llvm-commits]

vsk added a comment.

In D74030#1888655 <https://reviews.llvm.org/D74030#1888655>, @alok wrote:

> 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)


Why is it necessary to do (1)? If the goal is to have cleaner IR after LowerDbgDeclare, it seems like (2) achieves that.

> 2. Delete duplicate dbg.value in case duplicate dbg.value are present (may be inserted for different load/store) by calling RemoveRedundantDbgInstrs.




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