[PATCH] D105207: [debuginfo][lsr] SCEV-based salvaging for LoopStrengthReduction

[Markus Lavin via Phabricator via llvm-commits]

markus added a comment.

In D105207#2862867 <https://reviews.llvm.org/D105207#2862867>, @lebedev.ri wrote:

> Correct me if i'm misremembering things, but weren't there something like that (SCEV-driven debuginfo salvaging/recovery) already,
> and it had problems with holding to the dead IR, and was removed because of that?

There was and it was briefly removed before being re-landed again after the issues with holding on to dead IR were addressed (`2a6782bb9f1d6`).


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