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4d47479074
into the new pass manager's analysis cache which stores results by-value. Technically speaking, the dom trees were originally not movable but copyable! This, unsurprisingly, didn't work at all -- the copy was shallow and just resulted in rampant memory corruption. This change explicitly forbids copying (as it would need to be a deep copy) and makes them explicitly movable with the unsurprising boiler plate to member-wise move them because we can't rely on MSVC to generate this code for us. =/ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225966 91177308-0d34-0410-b5e6-96231b3b80d8