[PATCH] D89818: [Compile Time] Make it possible to skip redundant debuginst removal

[Christopher Tetreault via Phabricator via llvm-commits]

ctetreau added a comment.

This patch is basically the same thing we ended up doing in our downstream to resolve the issue. We're seeing it in LoopUnroll, so that's where we are skipping it.

If this problem crops up in other places, we could do something similar there. And if all the callsites have a mitigation, then we can safely remove `RemoveRedundantDbgInstrs` from `MergeBlockIntoPredecessor`


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https://reviews.llvm.org/D89818