[PATCH] D50890: [NFC] Factor out predecessors collection into a separate method

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev added a comment.

I need it for https://reviews.llvm.org/D50891

Tracking down instructions that write memory is pretty much the same as with control flow. Thinking about it even more, we can generalize much more things there.


https://reviews.llvm.org/D50890