[PATCH] D12948: [SCEV] Teach SCEV that A < B => (A+K) < (B+K) on no overflow.

[Sanjoy Das via llvm-commits]

sanjoy updated this revision to Diff 35576.
sanjoy marked 3 inline comments as done.
sanjoy added a comment.

- Address Hal's review.
- Generalize the transform a little bit -- A s< B => A + C s< B + C if B s< INT_MIN - C even if C is negative.  Add a test case for the same.


http://reviews.llvm.org/D12948

Files:
  include/llvm/Analysis/ScalarEvolution.h
  lib/Analysis/ScalarEvolution.cpp
  test/Transforms/IndVarSimplify/eliminate-comparison.ll

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