Fix NULL
and unknown pointer handling in MayPointTo
and ReachableFrom
for race analysis
#1176
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This on top of #1174 because that's where #1175 first appeared.
This isn't a complete fix for #1175 but enough to fix various combinations of
NULL
and unknown pointers in theMayPointTo
andReachableFrom
queries done by race analysis.Changes
ReachableFrom
unknown pointer handling which was accidentally removed in UseAddressDomain
forMayPointTo
andReachableFrom
queries #1142.Int
values toAddress
for the two queries. This is needed becauseNULL
yields a zero integer constant.