[PATCH] D98627: [JumpThreading] Do not use AA after a block has been destroyed. PR43276

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Hm, why does the block actually end up being deleted?
`DominatorTree`/`DomTreeUpdater` is always present, and `DomTreeUpdater` is in lazy mode, so it doesn't apply changes/delete blocks immediately, but only when flushed.
But where does it get flushed? *That* seems a bug.


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https://reviews.llvm.org/D98627