[PATCH] D36087: [SCEV] Re-enable "Cache results of computeExitLimit"

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev created this revision.

The patch https://reviews.llvm.org/rL309080 was reverted because it did not clean up the cache on "forgetValue"
method call. This patch re-enables this change, adds the missing check and introduces
two new unit tests that make sure that the cache is cleaned properly.


https://reviews.llvm.org/D36087

Files:
  include/llvm/Analysis/ScalarEvolution.h
  lib/Analysis/ScalarEvolution.cpp
  test/Analysis/ScalarEvolution/cache_loop_exit_limit.ll
  unittests/Analysis/ScalarEvolutionTest.cpp

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