[PATCH] D44515: [IRCE] Change min value safety check

[Sam Parker via Phabricator via llvm-commits]

samparker updated this revision to Diff 138929.
samparker added a comment.

I've replaced SumCanReachMax with SumCannotBeMaxInLoop, which uses similar logic to the new CannotBeMinInLoop, querying SCEV's LoopBackedgeGuardedBy. These two updated checks are need together to get this to work. Other changes:

- Removed whitespace.
- re-inserted the range metadata into test.


https://reviews.llvm.org/D44515

Files:
  lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
  test/Transforms/IRCE/eq_ne.ll
  test/Transforms/IRCE/variable-loop-bounds.ll

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