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585644611e
This is an enhancement to SeparateConstOffsetFromGEP. With this patch, we can extract a constant offset from "s/zext and/or/xor A, B". Added a new test @ext_or to verify this enhancement. Refactoring the code, I also extracted some common logic to function Distributable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209670 91177308-0d34-0410-b5e6-96231b3b80d8
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