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ca71be6415
The previous code assumed that such instructions could not have any uses outside CaseDest, with the motivation that the instruction could not dominate CommonDest because CommonDest has phi nodes in it. That simply isn't true; e.g., CommonDest could have an edge back to itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225552 91177308-0d34-0410-b5e6-96231b3b80d8
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