DynamoRIO / DynamoRIO/drmemory
propagate to more-significant bytes for arithmetic ops
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Description
_From [derek.br...@gmail.com](https://code.google.com/u/117968039472581148324/) on December 10, 2010 17:57:49_
PR 408551
Today I do not shift shadow values upward due to expansion from arithmetic ops.
This can lead to both false negatives and false positives.
_Original issue: http://code.google.com/p/drmemory/issues/detail?id=122_
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