[PATCH] D30350: [LSR] Add a cap for reassociation of AllFixupsOutsideLoop type LSRUse to protect compile time

[Wei Mi via Phabricator via llvm-commits]

wmi updated this revision to Diff 95000.
wmi added a comment.

Address Sanjoy's comments.

- Implement local caches for getZeroExtendExpr and getSignExtendExpr.
- Generate the IR programatically for the testcase.


Repository:
  rL LLVM

https://reviews.llvm.org/D30350

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

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