The most common use case is when eliminating redundant range checks in an example like the following:
c = a[i+1] + a[i];
Note that all the smarts of the transform (the implication engine) is already in ValueTracking and is tested directly through InstructionSimplify.
Differential Revision: http://reviews.llvm.org/D13040
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251596 91177308-0d34-0410-b5e6-96231b3b80d8
