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Summary: Memdep had funny bug related to invariant.groups - because it did not invalidated cache, in some very rare cases it was possible to show memory dependence of the instruction that was deleted, but because other instruction took it's place it resulted in call to vtable! Thanks @amharc for repro!. Reviewers: dberlin, kuhar, amharc Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D45320 Co-authored-by: Krzysztof Pszeniczny <krzysztof.pszeniczny@gmail.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@332781 91177308-0d34-0410-b5e6-96231b3b80d8