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

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev updated this revision to Diff 108923.
mkazantsev added a comment.

Now we don't throw away the exit limit for sake of a more optimistic future estimation every time we calculate getBackedgeTakenInfo. It doesn't look like estimation of Exit Limit for a particular exit block may be improved from what we have there.


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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