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Summary: This patch allows to use derived pointers (GEPs/bitcasts) of unrelocated base pointers. We care only about the uses of these derived pointers. It is acheived by two changes: 1. When we have enough information to say if the pointer is unrelocated at some point or not, we walk all BBs to remove from their Contributions all valid defs of unrelocated pointers (GEP with unrelocated base or bitcast of unrelocated pointer). 2. When it comes to verification we just ignore instructions that were removed at stage 1. Patch by Daniil Suchkov! Reviewers: anna, reames, apilipenko, mkazantsev Reviewed By: anna, mkazantsev Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D40289 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319838 91177308-0d34-0410-b5e6-96231b3b80d8