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Summary: LAA can only emit run-time alias checks for pointers with affine AddRec SCEV expressions. However, non-AddRecExprs can be now be converted to affine AddRecExprs using SCEV predicates. This change tries to add the minimal set of SCEV predicates in order to enable run-time alias checking. Reviewers: anemet, mzolotukhin, mkuper, sanjoy, hfinkel Reviewed By: hfinkel Subscribers: mssimpso, Ayal, dorit, roman.shirokiy, mzolotukhin, llvm-commits Differential Revision: https://reviews.llvm.org/D17080 llvm-svn: 313012
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