[PATCH] D61164: [X86] If PreprocessISelDAG reorders a load before a call, make sure we remove dead nodes from the graph

[Nirav Dave via Phabricator via llvm-commits]

niravd added a comment.

I worry this is just fix just the dangling nodes as we see them. A brief glance at the AND construction gives us space for this to happen again. I'd much rather we do the removal check unconditionally or leverage something like 
DAGUpdateListener to get a more fundamental measure of what nodes may be prunable.


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https://reviews.llvm.org/D61164