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Changes from Git (git http://labmaster3.local/git/llvm-project.git)

Summary

  1. [SCEV] accurate range for addrecexpr with nuw flag (details)
Commit a6342c247a17fb270e0385bd1deb463b7309a43b by czhengsz
[SCEV] accurate range for addrecexpr with nuw flag
If addrecexpr has nuw flag, the value should never be less than its
start value and start value does not required to be SCEVConstant.
Reviewed By: nikic, sanjoy
Differential Revision: https://reviews.llvm.org/D71690
The file was modifiedllvm/lib/Analysis/ScalarEvolution.cpp
The file was modifiedllvm/test/Analysis/ScalarEvolution/range_nw_flag.ll