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Csmith generated a program where a store after load to the same address did not get chained after the new load created during DAG legalizing, and so performed an illegal overwrite of the expected value. When the new zero-extending load is created, the chain users of the original load must be updated, which was not done previously. A similar case was also found and handled in lowerBITCAST. Review: Ulrich Weigand https://reviews.llvm.org/D40542 llvm-svn: 319409
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