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Dan Gohman
547c92af20
In ScalarEvolution::forgetValue, eliminate any SCEVUnknown
entries associated with the value being erased in the folding set map. These entries used to be harmless, because a SCEVUnknown doesn't store any information about its Value*, so having a new Value allocated at the old Value's address wasn't a problem. But now that ScalarEvolution is storing more information about values, this is no longer safe. llvm-svn: 107316
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