[PATCH] D118449: [Inline][Cloning] Reliably remove unreachable blocks during cloning (PR53206)

[Reid Kleckner via Phabricator via llvm-commits]

rnk accepted this revision.
rnk added a comment.
This revision is now accepted and ready to land.

`removeUnreachableBlocks` operates on the whole function and preserves extra analyses. I think it makes sense to have a mini-DFS here to consider only a single inlined function body.

lgtm


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