[PATCH] D30871: Add forgetBlock in PredIteratorCache.

[Xin Tong via Phabricator via llvm-commits]

trentxintong created this revision.
Herald added a subscriber: mgorny.

This is preparatory work to make Jump Threading to use PredIterCache.
There are places in which some of the predecessors are split in Jump Threading.


https://reviews.llvm.org/D30871

Files:
  include/llvm/IR/PredIteratorCache.h
  unittests/IR/CMakeLists.txt
  unittests/IR/PredIterCacheTest.cpp

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